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Preprint ARTICLE | doi:10.20944/preprints202409.1414.v1

Design Methods of Aluminium Pin-Ended Columns with Topology Optimised Cross Sections

Mehmet A Güler, Aykut Artac, Bora Yildirim, Konstantinos Daniel Tsavdaridis

Subject: Engineering, Civil Engineering Keywords: aluminium, columns, FE analysis, topology optimisation, DSM, CSM

Online: 18 September 2024 (12:56:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1387.v1

Study on the Design of a New Three-Dimensional Seismic Isolation Bearing Based on Improved Genetic Algorithm for Bridge Engineering

Ying Sheng, Zhenchao Yang, Yu Meng, Bin Jia

Subject: Engineering, Civil Engineering Keywords: three-dimensional seismic isolation bearing; bridge engineering; sensitivity of the design parameters; improved genetic algorithm; good seismic isolation effect

Online: 18 September 2024 (11:12:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1317.v1

Alternative Slope-Deflection Equations for Static Analysis of Indeterminate Structures

Dayakar Naik Lavadiya, Eric Vincent Garcia, Clare M Pankratz, Kristine M Kalthoff

Subject: Engineering, Civil Engineering Keywords: Slope-Deflection; Indeterminate Structure; Beams; Frames

Online: 17 September 2024 (11:36:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1272.v1

Influence of Fibers on Shear Behavior of Concrete Beams Reinforced with Steel and GFRP Rebars

Rajkumar R, Umamaheswari Nambiappan, George Wardeh

Subject: Engineering, Civil Engineering Keywords: concrete beams; GFRP bars; shear failure; steel fiber

Online: 17 September 2024 (03:31:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1216.v1

Petrographic and Geo-Mechanical Characteristics of Inzari Formation of Nizampur Basin, Nowshera District, Khyber Pakhtunkhwa, Pakistan

Hassan Ayaz, Jaincong Xu, Muhammad Usama Aslam, Sohail Ahmad, Junaid Ali

Subject: Engineering, Civil Engineering Keywords: inzari formation; geo-mechanical characteristics; petrography characteristic; building material; Nizampur basin

Online: 16 September 2024 (11:50:47 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.1201.v1

Assessing Seismic Vulnerability Methods for RC-Frame Buildings in Pre- and Post-Earthquake

Mabor Achol Achol Samuel, Ergang Xiong, Haris Mahmood, Lekeufack Beco Chenadaire, Yupeng Xie, Yufei Han

Subject: Engineering, Civil Engineering Keywords: damage; post-earthquake; mitigation strategies; seismic risk; empirical method; analytical method; earthquake

Online: 16 September 2024 (11:48:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1213.v1

Investigation of Water Hammer Effect on the Transmission Main Pipeline of Su’ula -Manda Water Supply Schemes, Afar, Ethiopia

Seid Mohammed Suwalih, Kinfe Kassa

Subject: Engineering, Civil Engineering Keywords: Water Hammer, Pressure fluctuations, Hydro-pneumatic tank, Maximum pressure, Cavitation

Online: 16 September 2024 (10:33:54 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.1167.v1

Improving Urban Energy Efficiency with Ground Source Heat Pump Systems Integrated with Energy Piles

Thiti Chanchayanon, Susit Chaiprakaikeow, Apiniti Jotisankasa, Shinya Inazumi

Subject: Engineering, Civil Engineering Keywords: energy pile; geothermal energy system; ground source heat pump; heat transfer mechanism; renewable energy efficiency; smart city infrastructure; sustainable urban development; urban heat island effect

Online: 16 September 2024 (10:11:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1155.v1

Effectiveness of Generative AI for Post-Earthquake Damage Assessment

João M. C. Estêvão

Subject: Engineering, Civil Engineering Keywords: Post-Earthquake Damage Assessment; Generative Artificial Intelligence; Damage Classification; EMS-98 Scale

Online: 16 September 2024 (09:51:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1172.v1

Hydration and Mechanical Properties of Cement Kiln Dust Blended Cement Composite

Woo-Seok Lee, Young-Cheol Choi

Subject: Engineering, Civil Engineering Keywords: cement kiln dust; hydration; compressive strength

Online: 16 September 2024 (09:41:50 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.1150.v1

Performance of Permeable Pavement Systems: A Review and Future Solutions

Simon Avaungwa Terkura, Shatirah Akib

Subject: Engineering, Civil Engineering Keywords: sustainable urban design; permeable pavement; pollutant removal; flood mitigation

Online: 16 September 2024 (03:20:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1117.v1

Hydration and Mechanical Properties of High-Volume Fly ash Cement under Different Curing Temperatures

Young-Cheol Choi

Subject: Engineering, Civil Engineering Keywords: curing temperature; high volume fly ash; hydration; compressive strength

Online: 15 September 2024 (07:32:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1100.v1

Wood in Modern Construction: A Scientometric Examination of Sustainable Trends

Dorin Maier

Subject: Engineering, Civil Engineering Keywords: wood construction; building materials; circular economy; mass timber; cross laminated timber; sustainable development

Online: 14 September 2024 (04:46:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1022.v1

Environmental Impact Minimization Model for Storage Yard of In-Situ Produced PC Components: Comparison of Dung Beetle Algorithm and Improved Dung Beetle Algorithm

Jeeyoung Lim, Sunkuk Kim

Subject: Engineering, Civil Engineering Keywords: large logistics center; layout optimization; carbon dioxide emission; dung beetle optimization algorithm; improved dung beetle optimization algorithm

Online: 14 September 2024 (04:29:09 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0974.v1

Wood-Cement Composites: A Sustainable Approach for Mitigating Environmental Impact in Construction

Dorin Maier, Daniela Lucia Manea, Roxana Tamas-Gavrea, Tiriac Alexandra, Paul Costin

Subject: Engineering, Civil Engineering Keywords: wood; cement; wood waste,; wood-cement composites; building materials; green constructions

Online: 12 September 2024 (15:49:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0927.v1

Enhancing Strength and Performance of Self-Compacting Concrete for Integration in Department of Public Works and Highways Projects: A Value Engineering Approach

John Philip Rivera

Subject: Engineering, Civil Engineering Keywords: Self-Compacting Concrete; Department of Public Works and Highways; Strength Enhancement; Durability Optimization; Construction Efficiency

Online: 12 September 2024 (10:51:25 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints202409.0844.v1

Performance Evaluation of Hydrological Models Using GR4J Rainfall-Runoff Model for Developed Watersheds in Java Island

Cecep Muhtaj Munajat, Sri Legowo W. Darsono, Dhemi Harlan

Subject: Engineering, Civil Engineering Keywords: GR4J rainfall-runoff model; observed unit hydrograph; synthetic unit hydrograph; Nash-Sutcliffe coefficient; Java Island watershed

Online: 11 September 2024 (11:04:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0829.v1

Performance Based Design of Alkali Activated Concrete for High Thermal Load Applications

Anastasija Komkova, Carlos Andres Arce Campos, Catherine G. Papanicolaou, Thanasis C. Triantafillou

Subject: Engineering, Civil Engineering Keywords: Alkali-activated material; geopolymer; concrete; design of experiment; olivine

Online: 11 September 2024 (11:02:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0881.v1

Improving Geotechnical Properties of Expansive Subgrade Using Sugar Cane Molasses and Cement

Sohail Ahmad, Tianbo Peng, Hassan Ayaz, Yicheng Wu

Subject: Engineering, Civil Engineering Keywords: sugar cane molasses; soil stabilization; geotechnical properties; expansive clay soil; stabilization mechanism

Online: 11 September 2024 (10:49:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0512.v1

Plastic Design of Metal Thin-Walled Cross-Sections of Any Shape Under Any Combination of Internal Forces

Antonio Aguero, Ivan Balaz, Torsten Hoglund, Yvona Kolekova

Subject: Engineering, Civil Engineering Keywords: plastic design; thin-walled cross-sections; Eurocodes; EN 1993-1-1:2022; EN 1999-1- 1:2023; any cross-section shapes; any combination of internal forces; free available programmes

Online: 6 September 2024 (09:39:42 CEST)

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The introduction provides an overview of beginning the development of a plastic design of metal thin-walled cross-sections. This large study investigates in detail together 14 steel and four extruded aluminium cross-sections. Six groups of various shaped cross-sections that consist of: four I-shaped doubly symmetric sections (two I-sections, one I-section with lips, one H-section); three monosymmetric sections with axis of symmetry z (monosymmetric I-section, T-section, diamond section); four monosymmetric sections with axis of symmetry y (two channels, channel with inside lips, channel with outside lips); two point symmetric sections (Z-section with and without lips); four asymmetric sections (L-profile, sigma section, two closed sections: oblique and irregular sections; non-warping sections along midline, but with negligible warping along the element's thicknesses: Tsection and L-profile are included in the above groups. Four extruded aluminium cross-sections are: I 200a section, diamond section and closed oblique and irregular sections. For all 18 cross-sections, the plastic section moduli of three kinds were calculated: Wpl,y,nB, Wpl,z,nB for bimoment not considered to be constraint; Wpl,y, Wpl,z, Wpl,wfor bimoment considered to be restraint; maximum values Wpl,y,max, Wpl,z,max, Wpl,w,max. The values of cross-section plastic resistances Npl, Mpl,y,Rd, Mpl,z,Rd and Bpl are also calculated in numerical examples. The values of cross-section properties are calculated in different ways to verify the correctness of the results. The following ways of calculations are used: the rules in Eurocode EN 1993-1-1: 2022; own MathCad programmes; own software. Recommendations for educational institutes and designers in practice are provided, including simple formulae for all the cross-sectional properties for the doubly and monosymmetric I-shaped sections, channels and Z-sections. Formulae are presented in six tables containing formulae in the dimensionless form, which are useful for parametrical studies and formulae for direct designs. The background of the Eurocode rules in EN 1993-1-1: 2022 is explained together with recommendations about how to avoid problems with using them.

Preprint ARTICLE | doi:10.20944/preprints202409.0467.v1

Investigation on the Performances of Esterified Waste Cooking Oil Recycling Agent and Recycled Asphalt

Junhui Wang, Qunshan Ye, Lingyi Fan, Cheng Xie, Haobin Liu

Subject: Engineering, Civil Engineering Keywords: recycled asphalt; waste cooking oil; glycerol esterification; thermo-oxidative stability; anti-aging properties

Online: 6 September 2024 (03:40:55 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0442.v1

Evaluation of Trenchless Pressure Pipeline Inspection Methods

Wei Zhang

Subject: Engineering, Civil Engineering Keywords: Pressure pipes; Trenchless; Pipelines; Inspection; Underground; Water

Online: 5 September 2024 (10:59:02 CEST)

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Within the research of pressure pipeline inspection methods there is an industry that is constantly growing and becoming more efficient. The purpose of inspection methods on pressure pipelines comes back to the issue of resolving leaks, corrosion, and inability of a pipeline to function (eventually). Evidently, these issues can hurt the environment, the public using the material being carried out by these pressure pipelines such as natural gas or petroleum and can hurt the pockets of pipeline companies that did not react quick enough to their pipeline solely for the reason that they may have not noticed there was an issue with their pressure pipeline. In-line inspection methods are continuously growing and have already made an impact to prevent the catastrophes that occur when a pipeline is not maintained. Technology such as smart pigs, MFLs, and ultrasounds are the future of pressure pipeline inspection. This research paper explains their pros and cons and how they’re overall more efficient and preferred as the primary inspection method for a pipeline. Older, more traditional methods such as aerial inspection, by-foot inspection, hydrostatic pressure testing, and Direct Assessment does not cover every base of inspection like in-line inspection technology does and this research explains why that is and the areas of where in-line inspection technology can be improved and deemed not as useful. This is where trenchless renewal and replacement methods come into play with inspection methods and determining the characteristics of a pipeline that matches with which inspection method and which trenchless method to use. The future of inspection methods for pressure pipelines is attainable and is somewhat already here, this research discusses the new emerging technologies and how designing in-line inspection technology to be cheaper and more versatile with pipeline characteristics can make everyone a winner in the future. A winner as far the environment being safe, neighborhoods near pressure pipelines being safe, companies being able to install in-line inspection technology at a fraction of the cost of today and the efficiency of pipelines by monitoring the characteristics with this new technology.

Preprint ARTICLE | doi:10.20944/preprints202409.0428.v1

An Experimental and Numerical Study on the Lateral Stiffness Limits of Straddle-type Monorail Tour-transit Systems

Hong Zhang, Pengjiao Wang, Qin Li, Junhui Jin, Shiqi Wei, Fengqi Guo, Cheng Feng, Qun Deng

Subject: Engineering, Civil Engineering Keywords: monorail tour-transit system; lateral stiffness; co-simulation; dynamic response; sensitivity analysis

Online: 5 September 2024 (08:09:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0203.v1

Development of Urban Flood Forecasting System for Dhaka City Using MIKE+

Md Shahadat Hossain, Noshin Saiyara, Tarun Kanti Magumdar, Liton Chandra Mazumder, Shafiqul Islam, Md Sazzad Hossain, Sarder Udoy Raihan, Md Arifuzzaman Bhuyan

Subject: Engineering, Civil Engineering Keywords: Urban Flood; Dhaka; MIKE+; Real-time flood forecasting; Hydrodynamic modeling

Online: 4 September 2024 (04:50:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0243.v1

Artificial Neural Networks and Ensemble Learning for Enhanced Liquefaction Prediction in Smart Cities

Yuxin Cong, Shinya Inazumi

Subject: Engineering, Civil Engineering Keywords: artificial neural networks; bagging technique; ensemble learning; geotechnical engineering; liquefaction prediction; machine learning in geology; smart cities; urban resilience

Online: 3 September 2024 (18:10:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0250.v1

Impact of Wetting and Drying Cycles on the Hydromechanical Properties of Soil and Stability of the Earth Infrastructure

Syed Samran Ali Shah, Kanishka Sauis Turrakheil, MUHAMMAD NAVEED

Subject: Engineering, Civil Engineering Keywords: wetting-drying cycles; soil water characteristics; saturated hydraulic conductivity; shear strength of soil; slope stability analysis

Online: 3 September 2024 (16:58:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0143.v1

Development of Potential Slip Surface Identification Model for Active Deep-seated Landslide Sites: A Case Study in Taiwan

Shih-Meng Hsu, Chun-Chia Hsiung, Yu-Jia Chiu, Yi-Fan Liao, Jie-Ru Lin

Subject: Engineering, Civil Engineering Keywords: disturbed rock formation; landslide slip surface; hydraulic conductivity; principle component analysis; geological indicators

Online: 3 September 2024 (11:35:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0053.v1

Unveiling the Fatigue Behavior of Lateral Piles with Open Cross-Sections in Cohesive Soils

José A. Pérez, Alberto Ponce-Torres, José D. Ríos, Estíbaliz Sánchez-González

Subject: Engineering, Civil Engineering Keywords: laterally loaded piles; thin-walled open-ended piles; fatigue loading; cyclic loading; pile foundations

Online: 3 September 2024 (05:11:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0128.v1

Towards Hydraulic Design Optimization of Shaft Hydropower Plants: A 3D-CFD Application Based on Physical Models

Bertalan Alapfy, Nicolas Francisco Gamarra, Nils Rüther

Subject: Engineering, Civil Engineering Keywords: small hydropower; sustainable hydropower; hydraulic engineering; computational fluid dynamics; CFD; numerical modeling; porous media; trash rack; intake; hydraulic design

Online: 2 September 2024 (17:02:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0138.v1

Evaluating the Sustainability of Longtime Operating Infrastructure for Romanian Flood Risk Protection

Ioana Popescu, Camelia Maria Teau, Cristian Moisescu-Ciocan, Constantin Florescu, Relu Adam, Albert Titus Constantin

Subject: Engineering, Civil Engineering Keywords: water resources engineering; flood risk; improved water management; sustainability of structures

Online: 2 September 2024 (16:03:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0059.v1

The Cloud Model-Based Evaluation of Public Building Renewal Potential with the Game Theory Combination Weighting Methods-Case Study in China

Zhang Jia Ying, Li Xi Sheng

Subject: Engineering, Civil Engineering Keywords: Public buildings; Potential evaluation; Cloud model; Combination weighting methods; Game theory

Online: 2 September 2024 (09:02:28 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.2153.v1

A Study of Underground Pipeline System: Holistic Review

Wei Zhang

Subject: Engineering, Civil Engineering Keywords: Underground; Pipeline System; Holistic Review; Trenchless Technology; Pipelines

Online: 30 August 2024 (03:35:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2174.v1

A Device for Controlling the Chlorination in Small Umbrian Water Distribution Systems

Francesco Casinini, Marco Ferrante

Subject: Engineering, Civil Engineering Keywords: water supply; chlorination; low-cost device

Online: 29 August 2024 (17:31:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2179.v1

Cement Clinker Modified by Photocatalyst – Selected Mechanical Properties and Photocatalytic Activity during NO and BTEX Decomposition

Magdalena Janus, Jarosław Strzałkowski, Kamila Zając, Ewelina Kusiak-Nejman

Subject: Engineering, Civil Engineering Keywords: photocatalysis 2; photoactive cement 3; NO decomposition

Online: 29 August 2024 (14:28:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2146.v1

Wavelength Characteristics of Vertical Deformation and Train Dynamics Simulation of Long-Span Cable-Stayed Bridges under Complex Loads

Zhiqiang Pang, Mangmang Gao, Guolong Li, Jingjing Yang, Fei Yang

Subject: Engineering, Civil Engineering Keywords: bridge engineering; long-span cable-stayed bridges; mapping relationships; ballastless track; Train-Bridge dynamic coupling model; wavelength characterization

Online: 29 August 2024 (12:20:46 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.2074.v1

A Review on Research Progress of Corrosion Resistance of Alkali-activated Slag Cement Concrete

Qiushuang Liang, Xinlu Huang, Lanfang Zhang, Haiyan Yang

Subject: Engineering, Civil Engineering Keywords: Alkali-activated slag cement; acid; sulfate; seawater; chemical corrosion mechanism

Online: 29 August 2024 (06:13:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2046.v1

Seismic Damage Assessment of Existing Planar Steel X or V-Braced Frames Using the Hybrid "M and P" Technique

Triantafyllos Makarios, Athanasios Bakalis, Evangelos Efthymiou

Subject: Engineering, Civil Engineering Keywords: Damage identification; Steel Braced Frames; Concentric X or V-bracing; Stepping Eigenfrequencies; Capacity Curve; Target Displacement

Online: 29 August 2024 (02:52:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1801.v1

Co-CrackSegment: A New Corporative Deep Learning Framework for Pixel-Level Semantic Segmentation of Concrete Cracks

Nizar Faisal Alkayem, Ali Mayya, Xin Zhang, Lei Shen, Panagiotis G. Asteris, Qiang Wang, Maosen Cao

Subject: Engineering, Civil Engineering Keywords: semantic segmentation; crack identification; ensemble learning; deep learning; Co-CrackSegment

Online: 27 August 2024 (04:32:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1850.v1

Comparing the Efficiency of Particle Swarm and Harmony Search Algorithms in Optimizing the Muskingum-Cunge Model

Rahleh Ahmadi, Jamshid Piri, Hadi Galavi, Mahdi Keikha

Subject: Engineering, Civil Engineering Keywords: flood; blochistan; hydrological modeling; muskingum-cunge model; parameter optimization; machine learning

Online: 26 August 2024 (17:10:57 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.1828.v1

Multi-Decision-Making Criteria Approach for Choosing Trenchless Construction and Renewal Method: A Comprehensive Review

Wei Zhang

Subject: Engineering, Civil Engineering Keywords: Trenchless technologies; decision making; construction; pipelines; geotechnical engineering

Online: 26 August 2024 (11:30:15 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.1833.v1

Evaluation of Underground Pipelines Inspection Methods: A Systematic Review

Wei Zhang

Subject: Engineering, Civil Engineering Keywords: Evaluation; Underground; Pipelines; Inspection Methods; Systematic Review

Online: 26 August 2024 (11:30:01 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints202408.0259.v2

3D-Printing with Earthen Materials: A Settlement-Scale Design Experience

Leonardo Giacomobono, Maria Argenti, Elena Ferretti, Giulio Paparella

Subject: Engineering, Civil Engineering Keywords: Digitization; 3D-Printing; Earth; Housing System; Settlement; Automation; Sustainability

Online: 26 August 2024 (08:18:33 CEST)

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This case study originates as a design experiment for a sustainable housing system built on-site. The context is Niamey, the capital of Niger. The study takes into account the environmental issues in the construction sector and aims to find a solution capable of meeting housing, environmental, and economic needs. In the field of earthen construction, the most important developments have been achieved in manufacturing methods. In particular, the use of an additive digital manufacturing system, such as large-scale 3D-printing, allows the construction of complex shapes derived from structural and thermal studies, maintaining a high degree of automation in the construction process, reducing construction times and labor costs. This paper investigates the possibility of responding to housing and environmental needs with a settlement system made almost entirely of printed earth, maintaining the highest possible degree of automation. Starting from a study on the state of the art of 3D-printing in architecture and printable earthen compounds, the design choices of similar cases are analyzed to understand the construction techniques, potentials, and limitations of the medium. Finally, a design proposal is developed based on the definition of a fully printable functional module, which, upon aggregation, determines the characteristics of the final settlement. This implies a radical change of approach compared to previous prototyping of 3D-printed earthen buildings, as the design of the single functional module is not an exercise that finds completion in itself, but is oriented to the scale of the settlement right from the definition of its basic geometric characteristics. In other words, the settlement is no longer the result of the serial aggregation of independent basic units, but arises spontaneously from the juxtaposition of functional modules designed to interact with each other and merge into a single residential complex. The settlement is therefore the large-scale replication of the alternation between full and empty spaces that characterizes the single functional module and, even more importantly, the replication can take multiple forms. In fact, the full and empty spaces of the functional module are planned to allow multiple combinations of aggregation. This introduces a certain degree of customization into the growth dynamics of the settlement, a factor that is entirely new compared to previous proposals by repeatable modules. No less important are the environmental implications, as designing for the scale of the settlement allows the low carbon footprint typical of earth-based construction to be extended from the single building to the entire settlement.

Preprint ARTICLE | doi:10.20944/preprints202408.1633.v1

A hybrid Fuzzy Evaluation Method for Quantitative Risk Classification of Barrier Lake Based on an AHP Method Extended by D Numbers

Qigui Yang, Fugen Yan, Yaojun Cai, Yuesheng Luan, Duliangzi Yi, Haitao Liu, Wanli Dai, Zhongtian Zou

Subject: Engineering, Civil Engineering Keywords: barrier lake; risk classification; weight; D-AHP; short window; information acquisition

Online: 22 August 2024 (14:47:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1604.v1

Model Strengthening of Combined Wood and Concrete Pillar Foundations on Swamp Soil to Improve Stability and Durability

Nursyarif Agusniansyah

Subject: Engineering, Civil Engineering Keywords: Swamp soil; Wood pillars; Concrete reinforcement; Structural stability; Durability; Load-bearing capacity

Online: 22 August 2024 (08:25:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1569.v1

Urban Land Use Characteristics and Heat Islands: A Spatial Analysis

Asif Iqbal, Md Mizanur Rahman, Chris Chow, Peter Levett

Subject: Engineering, Civil Engineering Keywords: heat island; land use; spatial analysis; Landsat; Australia; Normalised Difference Vegetation Index (NDVI)

Online: 21 August 2024 (15:06:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1166.v1

IoT and Fuzzy Logic Integration to Prevent Hazards in Tehran’s Utilities

Mahdi Akhavan, Pooria Rashvand, Mehran Seyed Razzaghi

Subject: Engineering, Civil Engineering Keywords: Crisis Management; Decision Making System; Internet of Things; Fuzzy System; Early Warning System

Online: 20 August 2024 (12:54:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1268.v1

Probabilistic Assessment of Safety Performance of Composite Pile Foundation Using Symmetrical FEM Reliability Method

Yi Wang, Fenghui Dong

Subject: Engineering, Civil Engineering Keywords: ; FEM reliability; composite pile foundation; safety assessment; uncertainty ;

Online: 20 August 2024 (05:00:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1314.v1

Leveraging the Voluntary Carbon Market to Improve Water Resilience in the Colorado and Mississippi River Basins

John Ecklu, Alex Johnson, Tessa Landon, Evan Thomas

Subject: Engineering, Civil Engineering Keywords: Voluntary carbon market; water resilience; Mississippi; Colorado; carbon credits; climate finance

Online: 19 August 2024 (12:16:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1328.v1

Degree of Hydration, Microstructure, and Mechanical Properties of Cement-Modified TiO2 Nanoparticles

Young-Cheol Choi

Subject: Engineering, Civil Engineering Keywords: compressive strength; hydration degree; nucleation site; setting time; TiO₂ powder

Online: 19 August 2024 (11:11:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1206.v1

Numerical Simulation of the Shed-Tunnel Structure Dynamic Response under the Rockfall Repeated Impacts with FEM-SPH Method

Hao Zhao, Zepeng Lyu, Hongyan Liu

Subject: Engineering, Civil Engineering Keywords: the shed-tunnel structure; dynamic response; numerical simulation; impact force; repeated impacts; FEM-SPH method

Online: 16 August 2024 (04:46:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0959.v1

Comparison between Design Methods for Seismic Retrofit of R.C. Frames Using Dissipative Bracing Systems

Piero Colajanni, Muhammad Ahmed, Jennifer D’Anna

Subject: Engineering, Civil Engineering Keywords: seismic retrofit; dissipative bracings; design methods; direct displacement method; force-based design; behavior factor

Online: 14 August 2024 (07:10:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0862.v1

Edge Integration of Artificial Intelligence into Wireless Smart Sensor Platforms for Railroad Bridge Impact Detection

Omobolaji Lawal, Shaik Althaf V.Shajihan, Kirill Mechitov, Billie F. Spencer Jr.

Subject: Engineering, Civil Engineering Keywords: impact detection; railroad bridge; structural health monitoring; edge implementation; artificial intelligence; machine learning

Online: 13 August 2024 (17:08:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0978.v1

Seismic Design and Analysis of a Cold-Formed Steel Exoskeleton for Retrofit of a RC Multi-story Residential Building

Emilia Meglio, Antonio Formisano

Subject: Engineering, Civil Engineering Keywords: Integrated retrofit; Steel exoskeletons; Existing buildings; Reinforced Concrete structures; Design method; Pushover analyses

Online: 13 August 2024 (14:55:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0893.v1

Optimizing Additive Manufacturing with Computer Vision to Enhance Material Efficiency and Structural Stability

Musaddiq Al Ali, Masatoshi Shimoda, Marc Naguib

Subject: Engineering, Civil Engineering Keywords: 3D-printed structural design; Computer-aided design; Computer vision; Space missions; Topology optimization

Online: 13 August 2024 (08:49:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0857.v1

Characteristics Of Mould Growth In Pine And Spruce Sapwood And Heartwood Under Fluctuating Humidity

Pavla Ryparová, Zuzana Rácová

Subject: Engineering, Civil Engineering Keywords: Mould; growth curve; observation; mould index

Online: 13 August 2024 (08:01:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0843.v1

Improving the Decision-Making for Sustainable Demolition Waste Management by Combining a BIM-Based Life Cycle Sustainability Assessment Framework and Hybrid MCDA Approach

Dongchen Han, Abbas Rajabifard

Subject: Engineering, Civil Engineering Keywords: C&; DWM; recycling; BIM; MCDA; sustainability assessment; LCA

Online: 13 August 2024 (07:49:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0844.v1

Impacts of Spatiotemporal and COVID-19 Factors on Bike-Share Ride Duration in Detroit

Anahita Zahertar, Steven Lavrenz

Subject: Engineering, Civil Engineering Keywords: bikeshare; covid-19; survivalanalysis; urbanmobility; riderbehavior

Online: 12 August 2024 (23:40:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0617.v1

A Methodology to Evaluate the Horizontal Earth Pressure Acting on Circular Shafts Based on Its Lateral Displacements

António M. G. Pedro

Subject: Engineering, Civil Engineering Keywords: Cylindrical shafts; shaft displacements; earth pressure; analytical methods

Online: 8 August 2024 (12:58:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0455.v1

Predictive Modeling of UHPC Compressive Strength: Integration of Support Vector Regression and Arithmetic Optimization Algorithm

Liuyan Wang, Lin Liu, Dong Dai, Bo Liu, Zhengya Cheng

Subject: Engineering, Civil Engineering Keywords: UHPC; compressive strength; predictive research; SVR; AOA

Online: 8 August 2024 (11:47:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0598.v1

Water Quality Benefits of Porous Pavement on Major Arterial Roads

Katie Holzer, Cara Poor

Subject: Engineering, Civil Engineering Keywords: porous pavements; porous overlay; pervious pavement; pervious friction course; water quality; stormwater treatment

Online: 8 August 2024 (08:49:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0507.v1

The Influence of Sodium Benzoate as Corrosion Inhibitor on Physical and Mechanical Properties of Concrete: Kinetics Study

Latefa Sail

Subject: Engineering, Civil Engineering Keywords: admixture; concrete; sodium benzoate; corrosion inhibitor; limestone fillers; mechanical resistance; time

Online: 7 August 2024 (14:01:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0361.v1

Characterization of Stone Waste Sludge and Preliminary Investigation on Green Materials Based on Traditional Lime Putty

Albina Scioti, Graziella Bernardo, Ippolita Mecca, Fabio Fatiguso

Subject: Engineering, Civil Engineering Keywords: recovery; stone waste sludge; waste characterization; traditional lime putty; fresh mixture behavior

Online: 6 August 2024 (10:38:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0247.v1

Nearby Real-time Earthquake Simulation on an Urban Scale Based on Structural Monitoring

Xiandong Kang, Hongyu Chen, Guang Zhao, XuChuan Lin, Lifu Zheng, Yanan Chen, Qixuan Liu, Zihong Zhao, Xianan Chen, Fei Wang

Subject: Engineering, Civil Engineering Keywords: Regional earthquake disaster simulation; Real-time structural monitoring; Numerical modeling and updating; Earthquake response calculation

Online: 6 August 2024 (06:06:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0259.v1

3D Printing with Earthen Materials: A Settlement-Scale Design Experience

Leonardo Giacomobono, Maria Argenti, Elena Ferretti, Giulio Paparella

Subject: Engineering, Civil Engineering Keywords: Digitization; 3D Printing; Earth; Housing System; Settlement; Automation

Online: 5 August 2024 (08:19:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0201.v1

The Latest Innovations in the Flexural Capacity of Castellated Beams with Hexagonal Stiffener Variations

Ida Barkiah, Arya Rizki Darmawan, Nursyarif Agusniansyah

Subject: Engineering, Civil Engineering Keywords: Castellated beams; flexural capacity; shear capacity; hexagonal opening angle; experimental analysis; numerical analysis; stress distribution; deformation

Online: 2 August 2024 (15:56:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0203.v1

A literature review of Environmental, Social and Governance (ESG) indicators in the Construction Industry

Isaac Akomea-Frimpong, Collins Eli Agar, Abdul-Razak Alidu, Maame Yaa Ohenewaa-Ayisi, Benjamin Baah, Samuel Oduro, Michael Owoahene Acheampong, Elvis Adjei Konadu, Emmanuel Maalu, Dramani Arimiyaw, Roksana Jahan Tumpa, Renata Mwinome Kuutiero, Amir Ghanbaripour, Caleb Boadi

Subject: Engineering, Civil Engineering Keywords: Climate change; Construction industry; ESG; Sustainability; Literature review; social diversity

Online: 2 August 2024 (15:51:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0011.v1

Experimental Study of Sinkhole Propagation Induced by a Leaking Pipe Using Fibre Bragg Grating Sensors

Josué Yumba, Maria Ferentinou, Michael Grobler

Subject: Engineering, Civil Engineering Keywords: Sinkhole modelling; fibre Bragg grating; FBGs; optical fibre sensors

Online: 1 August 2024 (11:04:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2303.v1

Review On Construction Firms Performance Assessment Methods, Using Qualitative Content Analysis

Amirnojan Naderi, Amir Golroo, Hossein Hajarolasvadi

Subject: Engineering, Civil Engineering Keywords: construction firm; content analysis; performance assessment; modeling

Online: 1 August 2024 (02:16:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2479.v1

Study on Leakage Assessment and Stability Analysis of Water Level Changes on Tunnels near Reservoirs

Yu Liu, Zhixuan Wang, Xiao Liu, Jianyong Han

Subject: Engineering, Civil Engineering Keywords: tunnels near reservoirs; leakage asseessment; analytic hierarchy process (AHP); numerical analysis

Online: 31 July 2024 (08:59:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2491.v1

Assessment of Water Service Levels and User Satisfaction for Domestic Water Use in Emina-Boadi-Kumasi for Achieving Sustainable Development of Urban Water Supply Systems of Ghana

Emmanuel Padmore Mantey, Rameshwar S. Kanwar, Eugene Appiah-Effah

Subject: Engineering, Civil Engineering Keywords: Reliable Water Supply; Public Health; Water Service Levels; Rural Development; SDG 6

Online: 31 July 2024 (08:47:40 CEST)

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Access to reliable water supply is critical for sustainable development and public health, yet many peri-urban and rural communities in the developing world face challenges such as poor maintenance, faulty infrastructure, and inadequate governance of water services, hindering the UN’s Sustainable Development Goals (SDG). In Emina-Boadi, a small town in Kumasi, Ghana, residents increasingly rely on boreholes due to substandard service from the Ghana Water Company Limited (GWCL). This shift highlights concerns about water reliability, quality, and affordability, impacting public health and hindering progress toward SDG 6. This case study assesses water service levels using key performance indicators (KPIs) such as quantity, quality, affordability, accessibility, and reliability, focusing on sources like boreholes, hand pumps, piped water, hand-dug wells, rainwater, and surface waters. The study aims to delineate the roles of different water providers, understand community dynamics, and evaluate contributions to rural development and SDG 6 through stakeholder interviews and questionnaires. Leveraging the WASHCost framework, which aims to improve planning methods and provision of water and sanitation services by addressing the lack of cost information in rural and peri-urban areas, and the Joint Monitoring Programme (JMP) framework, which monitors progress toward global targets related to water, sanitation, and hygiene, the study categorizes indicators and draws connections among them. Findings reveal a significant preference for borehole services, with 87% usage and an 83% reliability rate compared to 13% for GWCL. Daily water consumption averages 60.75 liters per person, with on-premises access improving water collection efficiency to 7 minutes. Dissatisfaction with GWCL services highlights the need for improved delivery aligned with community needs and SDG targets. Adopting sustainable management practices, enhancing infrastructure, and improving governance are crucial for ensuring safe and affordable water access for all residents of Emina-Boadi and similar communities.

Preprint ARTICLE | doi:10.20944/preprints202407.2476.v1

Evaluation of the Applications of Using Global Free Digital Elevation Models and GNSS-RTK Data for Agricultural Purposes in Egypt Using Machine Learning

Ashraf Abdallah, Bara' Al-MISTAREHI, Amir SHTAYAT

Subject: Engineering, Civil Engineering Keywords: DEM; GNSS-RTK; Agricultural; Machine Learning; Egypt

Online: 31 July 2024 (03:07:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2412.v1

Predictive Assessment and Compressive Strength Test of Geopolymer Concrete Mix as a Partial Replacement to Conventional Concrete Mix with Artificial Neural Network Application

Hannah Beatrix D. Labiano, Ian Rovic P. Cruz, Lanz Ghranyel C. Quizon, Christ John L. Marcos

Subject: Engineering, Civil Engineering Keywords: geopolymer concrete; Conventional Concrete Mix; Artificial Neural Networks

Online: 30 July 2024 (11:03:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2224.v1

Behaviour Analysis of Beam-type Timber and Timber-concrete Composite Panels

Elza Briuka, Dmitrijs Serdjuks, Pavel Akishin, Genadijs Sahmenko, Andrejs Podkoritovs, Raimonds Ozolins

Subject: Engineering, Civil Engineering Keywords: load-carrying capacity; timber-concrete adhesive connection; ductility enhancement; transformed section method; γ-method; three-point bending; finite element analysis; maximum vertical displacements; stone chip method; timber-concrete composite

Online: 30 July 2024 (09:10:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2230.v1

Development of a Capsule-Type Inspection Robot Customized for the Ondol Pipeline

Myungdo Lee, Ung-Kyun Lee

Subject: Engineering, Civil Engineering Keywords: ondol; pipeline inspection; in-pipe inspection robot; monitoring; maintenance

Online: 30 July 2024 (09:08:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2388.v1

Wastewater Management Using a Neural Network-Assisted Novel Paradigm for Waste Prediction from Vermicomposting

M. Thanjaivadivel, R. Suguna, G. Arulkumaran, M. Bala Anand, Claudia Cherubini

Subject: Engineering, Civil Engineering Keywords: Balz-Schiemann; Chemical Equilibrium; Chemical Liability; Gaas Waste Management; Neural Network; Vermicomposting

Online: 30 July 2024 (07:33:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2356.v1

Modelling of Applying Road Pricing at Airport Highway via VISUM Micro-simulation Software in Amman City, Jordan

Amani Abdallah Assolie, Rana Imam, Ibrahim Khliefat, Ala Alobeidyeen

Subject: Engineering, Civil Engineering Keywords: Road Pricing scheme; toll road; VISUM; traffic Congestion; SPSS, Fuel Consumption

Online: 30 July 2024 (07:23:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2332.v1

Investigating the Influence of Fiber Content and Geometry on the Flexural Response of Fiber-Reinforced Cementitious Composites.

Dillshad Khidhir Hamad Amen Bzeni

Subject: Engineering, Civil Engineering Keywords: Fiber reinforced mortar; synthetic fibers; aspect ratio; fiber content; Equivalent; equivalent elastic bending stress

Online: 29 July 2024 (16:12:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2095.v1

Study on Mechanical Properties and Durability of Tunnel Lining Concrete in Coastal Areas

Sihui Dong, Wei Liu, Hongyi Li

Subject: Engineering, Civil Engineering Keywords: tunnel lining concrete; persistence; steel fiber; coconut fiber; mechanism analysis Ergonomics

Online: 29 July 2024 (03:04:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2083.v1

Test and Analysis of Reinforced Concrete Beams Reinforced by Polyurethane Concrete-Prestressed Steel Wire (PUC-PSW)

Wei Li, Jiaqi Qiu, Yi Wang, Kexin Zhang

Subject: Engineering, Civil Engineering Keywords: Polyurethane concrete-prestressed steel wire (PUC-PSW); Polyurethane concrete (PUC); Reinforcing beam; Bending test

Online: 26 July 2024 (11:55:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2046.v1

Crack Identification Method for Prefabricated Concrete Pavement Based on Distributed Strain Monitoring

Yongsheng Tang, Bohan Zheng, Tao Yu

Subject: Engineering, Civil Engineering Keywords: Prefabricated concrete pavement; Distributed long-gauge optic fiber sensing; Crack identification; Strain curve envelope area ratio

Online: 26 July 2024 (08:08:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2013.v1

Application of a Novel Groundwater Storage Analysis Tool to Assess Drought Impacts in a Groundwater-Driven Basin in the Klamath Watershed, Oregon, USA

Daniel Shepard, Norman L Jones, Gustavious P. Williams

Subject: Engineering, Civil Engineering Keywords: drought; climate change; groundwater; remote sensing; machine learning

Online: 25 July 2024 (07:35:19 CEST)

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Preprint REVIEW | doi:10.20944/preprints202407.1863.v1

Review of Probabilistic Modeling of Pavement Performance Using Markov Chains

Mohamed S. Yamany, Dulcy M. Abraham, Tommy E. Nantung, Samuel Labi

Subject: Engineering, Civil Engineering Keywords: Pavement infrastructure asset; Probabilistic modeling; Pavement performance; Markov chains

Online: 24 July 2024 (16:47:02 CEST)

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Reliable models of pavement performance play a crucial role in effective decision-making for maintaining and rehabilitating this class of infrastructure assets. Probabilistic modeling approaches have gained popularity in pavement performance modeling because they account not only for the stochastic nature of pavement behavior and deterioration factor variations but also for the imperfections and inadequacy of pavement condition data in certain situations. One of these approaches, Markov chains, has been used extensively to model the probabilistic performance of pavements through an interesting variety of methodological tweaks in the Markov model structure. Unfortunately, the current literature lacks a synthesis of Markov chain models and their associated methodologies, as used in this manner. It is anticipated that a comprehensive synthesis of these models and their various forms can provide some insight into the variations of Markov model forms and methodologies, and the appropriate Markov model type to use for pavement deterioration and performance modeling under given conditions of data types and availability. To address this issue, this paper reviews Markov chain models used in the literature to model pavement deterioration and the methodologies used to estimate the transition probabilities matrix which is the key feature of Markov chain models. The paper presents a critical analysis of various aspects of Markov chain models as they were applied in the literature, reveals gaps in knowledge, and offers suggestions to address these gaps. The paper also develops a decision tree to select the appropriate Markov model type and TPM estimation methodology to model pavement deterioration under given conditions of data availability. This paper therefore provide guidance and decision support for researchers and highway agencies in selecting an appropriate probabilistic technique for modeling their pavement infrastructure performance in a robust manner.

Preprint ARTICLE | doi:10.20944/preprints202407.1812.v1

Flood Modelling of June 2023 Flooding of Léogâne City by the Overflow of the Rouyonne River (Haiti)

Rotchild Louis, Yves Zech, Adermus Joseph, Nyankona Gonomy, Sandra Soares-Frazao

Subject: Engineering, Civil Engineering Keywords: Flood modelling; Rouyonne river; Haiti; Hydrological modelling; Rating curve; Drone-based topography measurement

Online: 23 July 2024 (16:43:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1679.v1

Proposing New Normative Standards for Granular Base Rigid Pavements: Integrating CBR Testing with Hydraulic Conductivity

Omar Chavez Alegría, Mildred Montes Arvizu, Eduardo Rojas González

Subject: Engineering, Civil Engineering Keywords: California Bearing Ratio (CBR); permeability; granular base materials; rigid pavement

Online: 22 July 2024 (08:49:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1614.v1

Buckling Behavior of Innovative Low-Cost Bamboo Composite (LCBC) Structural Columns: Experimental Method and Numerical Approach

Ben Drury, Cameron Padfield, Ghazaleh Soltanieh, Mona Rajabifard, Amir Mofidi

Subject: Engineering, Civil Engineering Keywords: sustainability; low-cost bamboo composites (LCBC); iio-based epoxy; finite element analysis; buckling; failure; furan resin

Online: 22 July 2024 (05:07:23 CEST)

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This paper investigates, experimentally and numerically, the buckling behavior of innovative sustainable Low-Cost Bamboo Composite (LCBC) structural columns under compressive loading. The LCBC columns are manufactured from bamboo culms in combination with bio-based resins to form composite structural columns. Different LCBC cross-sectional configurations are investigated in this study including the Russian doll (RD), Big Russian doll (BRD), Hawser (HAW), and Scrimber (SCR). Extra-large, large, medium, and small sizes of bamboo are employed to form the proposed configurations. Two bio-based resins including one bio-epoxy and one furan-based resin, in addition to a soft bio-based filler and a synthetic epoxy resin are applied. The bamboo species used as the cast-in-place giant bamboo for all configurations include Moso, Guadua, and Tali. In addition to experimental testing of the slender LCBC short columns, finite element analysis (FEA) software ABAQUS is applied to model the composite columns and predict their behavior. A buckling analysis using static Riks method is carried out to determine the LBCB’s response to axial compressive loading. A model is calibrated using test results with various imperfections, accounting for the variable behavior of each bamboo specimen, to accurately predict the behavior of LCBC columns with different resin contents. Slender LCBC columns showed maximum stress at buckling up to 60 MPa, highlighting the potential of bio-based resins for structural applications. The study found that the samples with bio-epoxy resin (BE2) exhibited enhanced material stiffness when compared to with synthetic epoxy (EPX) and furan-based resin (PF1), while PF1 specimens demonstrated increased ductility. The BE2 samples showed strain hardening in their stress-strain behavior, and the PF1 samples exhibited a long plateau phase before reaching the maximum load. Among the specimens with Moso bamboo and BE2 resin, those with SCR and HAW configurations achieved the highest compressive strengths.

Preprint ARTICLE | doi:10.20944/preprints202407.1494.v1

Experimental Study on Flexural Bearing Capacity of RC Beam after Explosion Based on Piezoelectric Intelligent Aggregate

Kai Xu, Shilong Sheng, Ronghui Jiang, Qian Feng

Subject: Engineering, Civil Engineering Keywords: piezoelectric intelligent aggregate; explosion load; high strength concrete beam; bending resistance; damage monitoring; wavelet packet analysis ;

Online: 19 July 2024 (11:35:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1523.v1

A Novel Approach to Detecting Blockages in Sewers and Drains: The Reflected Wave Technique

David A Kelly, Mark Garden, Khanda Sharif, David Campbell, Michael Gormley

Subject: Engineering, Civil Engineering Keywords: wastewater; sewer; hospital drain; blockage; reflected wave; system monitoring

Online: 19 July 2024 (07:50:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1489.v1

Numerical Modeling and Simulation of Vehicular Crashes Into Three-Bar Metal Bridge Rail

Howie Fang, Christopher Jaus, Qian Wang, Emre Palta, Lukasz Pachocki, Dawid Bruski

Subject: Engineering, Civil Engineering Keywords: Three-bar metal bridge rail (TMBR); Manual for Assessing Safety Hardware (MASH); Vehicular crash; Finite element (FE); Numerical simulation; Highway safety; Critical impact point (CIP)

Online: 18 July 2024 (10:46:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1329.v1

Numerical Modeling for Tunnel Lining Optimization

Jose Francisco Suarez Fino, Juan Manuel Mayoral Villa

Subject: Engineering, Civil Engineering Keywords: Tunnel; numerical modeling; primary lining; optimization primary lining; load-transfer mechanism; conventional excavation; back-analyses; FLAC^3D

Online: 16 July 2024 (17:06:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1298.v1

Leveraging Local Geomaterial Properties for Global Pavement Solutions: A Case Study

Omar Chávez Alegría, José Juan Cruz Marquez, Eduardo Rojas González, Sergio Aurelio Zamora Castro, Maria de la Luz Pérez Rea

Subject: Engineering, Civil Engineering Keywords: California bearing ratio; hydraulic conductivity; plasticity; fine material percentage

Online: 16 July 2024 (13:00:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1229.v1

Explicit Analysis for the Ground Reaction of a Circular Tunnel Excavated in Anisotropic Stress Fields based on Hoek–Brown Failure Criterion

Yu-Lin Lee, Chih-Sheng Chen, Tseng-Hsing Hsu, Chi-Min Lee

Subject: Engineering, Civil Engineering Keywords: Tunnel analysis; non-linear failure criterion; closed-form solution; incremental procedure; anisotropic stress fields; convergence-confinement method

Online: 16 July 2024 (10:48:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1133.v1

Upper Bound Limit Analysis of Deep Tunnel Face Support Pressure with Nonlinear Failure Criterion under Pore Water Conditions

Zihan Yang, Yongxin Li, Jingshu Xu

Subject: Engineering, Civil Engineering Keywords: ; deep tunnel face; pore water pressure; nonlinear failure criterion; upper bound theorem; failure mechanism; numerical simulation ;

Online: 15 July 2024 (07:51:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0930.v1

The Use of Diss Fibers to Enhance Lime Plaster Durability

Bartolomeo Megna, Vincenzo Fiore, Dionisio Badagliacco, Carmelo Sanfilippo, Antonino Valenza

Subject: Engineering, Civil Engineering Keywords: Ampelodesmos Mauritanicus; lime mortars; waste materials; marble slurry; durability.

Online: 12 July 2024 (09:29:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0968.v1

Deconvolution-Based System Identification and Finite Element Model Calibration of the UCLA Factor Building

Fei Wang, Jiemei Ma, Xiandong Kang, Qixuan Liu, Hongyu Chen

Subject: Engineering, Civil Engineering Keywords: Wave deconvolution; fundamental frequencies; shear wave velocity; finite element model calibration

Online: 11 July 2024 (12:27:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0918.v1

Automated Photogrammetric Tool for Landslide Recognition and Volume Calculation Using Time-Lapse Imagery

Liang Zhipeng, Fabio Gabrieli, Antonio Pol, Lorenzo Brezzi

Subject: Engineering, Civil Engineering Keywords: smart monitoring; landslide detection; time-lapse images; photogrammetry; collapse detection; structure similarity index measure (SSIM); similarity map (SM); image processing

Online: 11 July 2024 (04:52:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0792.v1

Analysis of Long-Term Creep Response Characteristics of High Rock Slopes considering Cumulative Effects of Earthquakes

Meilin Yu, Hongyan Deng

Subject: Engineering, Civil Engineering Keywords: long-term creep response; multiple earthquakes; high rock slope; cumulative effect; deformation characteristic; dynamic response

Online: 10 July 2024 (15:00:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0730.v1

Experimental and Parametric Analysis of Pull-out Resistance of Notched T-Perfobond Connector

Zifa Dong, Shuangjie Zheng, Lizhe Jiao, Xiaoqing Xu, Yao Yao, Zhuoru Gao, Haifeng Li

Subject: Engineering, Civil Engineering Keywords: composite structures; perfobond connectors; flange; notch; pull-out performance; finite element analysis

Online: 10 July 2024 (04:08:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0773.v1

Internal Damping Ratio of Normal and High Strength Concrete considering Mechanical Damage Evolution

Gustavo de Miranda Saleme Gidrão, Pablo Augusto Krahl, Rúbia Mara Bosse, Laura Silvestro, Rodrigo S. Ribeiro, Geannina Terezinha dos Santos Lima, Ricardo Carrazedo

Subject: Engineering, Civil Engineering Keywords: internal damping ratio; acoustic tests; usual concretes; damage evolution; high-strength concretes

Online: 10 July 2024 (00:08:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0804.v1

Polymers and their Use in Ecological Construction Materials

Adrian Ioana, Diana Cristina Labes (Craciun), Nicolae Constantin, Augustin Semenescu, Roxana Marina Solea (Iordachescu), Daniela Alice Luta (Manolescu), Alexandra Istrate

Subject: Engineering, Civil Engineering Keywords: construction; materials; polymers, carbon; emission; strategy

Online: 9 July 2024 (16:21:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0674.v1

Developing Construction Labor Productivity Model for Concreting Activity Using Artificial Neural Networks

Dawit Benti Abdissa, Alemu Mosisa Legese, Lelise Berhanu Kebede, Yada Tesfaye Boru

Subject: Engineering, Civil Engineering Keywords: ANN; building projects; concreting activities; CLP model

Online: 9 July 2024 (13:20:30 CEST)

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