Search Subject Areas | Preprints.org

Preprint REVIEW | doi:10.20944/preprints202306.0436.v1

A review on behavior and fatigue performance of orthotropic Steel-UHPC Composite Deck

Zhiwen Zhu, Ruixu Zhu, Ze Xiang

Subject: Engineering, Civil Engineering Keywords: Composite Deck; OSD; UHPC; stress behavior; fatigue; shear connection

Online: 6 June 2023 (10:02:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0409.v1

Verification of the Mode Decomposition Technique for the Closely Distributed Modal System in State Space

Jungtae Noh, Jae-Seung Hwang

Subject: Engineering, Civil Engineering Keywords: State-space model; Closely spaced modes; Mode decomposition; Structure-tuned mass damper system; Operational Modal Analysis of high rise building

Online: 6 June 2023 (08:50:40 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0331.v1

Design of Airfield Rigid Pavement Condition Monitoring and Sensing System

Yong Luo, Mustafasanie Bin M Yussof

Subject: Engineering, Civil Engineering Keywords: strain sensor; monitoring; the pavement; perception system

Online: 5 June 2023 (13:58:32 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0224.v1

Predicting the Compressive Strength of Green Concrete at Various Temperature Ranges Using Different Efficient Soft Computing Techniques

Ahmad Khalil Mohammed, Aram Hassan, Ahmed Salih Mohammed

Subject: Engineering, Civil Engineering Keywords: sustainability; concrete; ground granulated blast furnace slag (GGBFS); compressive strength; statistical analysis; modeling

Online: 5 June 2023 (02:34:19 CEST)

Show abstract| Download PDF| Share

Preprint CASE REPORT | doi:10.20944/preprints202306.0198.v1

Surface Waterproofing Techniques: A Case Study in Nova Lima, Brazil

Lorena Carias de Freitas Gomes, Henrique Comba Gomes, Elvys Dias Reis

Subject: Engineering, Civil Engineering Keywords: durability; waterproofing; infiltration; asphalt blankets; pathologies

Online: 2 June 2023 (11:57:59 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0118.v1

Study on Effect of Drawing Shear Factor on Underground Debris Flow in Natural Caving Method

Xiangdong Niu, Kepeng HOU, Huafen Sun

Subject: Engineering, Civil Engineering Keywords: natural caving mining; underground mud-rock flow; drawing shear factor; rheological properties; thixotropic properties; experimental study

Online: 2 June 2023 (05:46:28 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0124.v1

Experimental Research Studies on Seismic Behaviour of Confined Masonry Structures: Current Status and Future Needs

Juan Jose Perez Gavilán, Svetlana Brzev, Eric Fernando Espinosa Cazarin, Sara Ganzerli, Daniel Quiun, Matthew T Reiter

Subject: Engineering, Civil Engineering Keywords: confined masonry; seismic behaviour; experimental database; in-plane shear behaviour; in-plane flexural behaviour; out-of-plane seismic effects

Online: 2 June 2023 (04:10:53 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0025.v1

Structural Assessment Based on Vibration Measurement Test Combined With an Artificial Neural Network for the Steel Truss Bridge

Minh Quang Tran, Hélder S Sousa, Thuc V Ngo, Binh Duc Nguyen, Quyền Nguyễn, Huan X Nguyen, Edward Baron, José Matos, Son Ngoc DANG

Subject: Engineering, Civil Engineering Keywords: ANN; FEM; damage assessment; structural health monitoring; steel truss bridge

Online: 1 June 2023 (04:38:41 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2232.v1

A Simplified Silty Sand Model

Nopanom Kaewhanam, Krit Chaimoon

Subject: Engineering, Civil Engineering Keywords: clean sand; silty sand; elastoplastic model; critical state model; critical state line; simple model; three-dimensional stress

Online: 31 May 2023 (11:02:00 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2200.v1

Comparing Enhanced Models for Evaluating Economic Impact of Airports

Ivaciane de Quadra Magalhães, Anderson Ribeiro Correia, Michelle Carvalho Galvão da Silva Pinto Bandeira, Mauro Zackiewicz, Luiz Antonio Tozi

Subject: Engineering, Civil Engineering Keywords: Economic Impacts of Airports; Airport Investments; Input-output analysis; Data Science

Online: 31 May 2023 (08:31:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2181.v1

Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing

Xueliang Wang, Juanjuan Sun, Yong Zhang, Qisong Jiao, Shengwen Qi, Ran Wang, Haiyang Liu, Mengjie Zhang

Subject: Engineering, Civil Engineering Keywords: debris flow simulation; remote sensing; tree ring; Massflow; northeastern Tibet

Online: 31 May 2023 (07:29:40 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2121.v1

Analysis of Isotropic Rectangular Kirchhoff Plates with Two Opposite Edges Clamped Using the Flexibility Method and a Modified Lévy Solution

Valentin Fogang

Subject: Engineering, Civil Engineering Keywords: Isotropic rectangular Kirchhoff plate; opposite edges clamped; flexibility method; force method; Lévy solution; Fourier sine series

Online: 30 May 2023 (11:12:26 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2105.v1

Bending Analysis of Stepped Rectangular Plates Resting on Elastic Half-Space Foundation

Jian Wu, Jinpeng Zhang, Xue Li

Subject: Engineering, Civil Engineering Keywords: Stepped rectangular plate; thin plate theory; moderately thick plate theory; static; bending performance

Online: 30 May 2023 (10:06:16 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1939.v1

Coconut-Fiber Composite Concrete: Evaluation of Mechanical Performance

Amelia Montero, Ariel Román, Jorge Albuja-Sánchez, Mariela Anaguano-Marcillo, Nicolay Bernardo Yanchapanta Gómez, Edgar David Mora, Luis Hernández

Subject: Engineering, Civil Engineering Keywords: coconut fiber, silica fume, sodium hydroxide, gum arabic, strength, joists.

Online: 26 May 2023 (14:24:35 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1922.v1

Time-Varying Mechanical Analysis of Long-Span Spatial Steel Structures Integral Lifting during Construction Process

Yang Yang, Hongbo Du, Gang Yao, Xinlong Ma, Wulei Men

Subject: Engineering, Civil Engineering Keywords: long-span spatial steel structure; time-varying mechanical; integral lifting; construction process; displacement difference

Online: 26 May 2023 (10:44:09 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1859.v1

Acoustic Impedance Evaluation of the Polymer-Polymer Hybrid Composites as Insulator Building Materials

Rand Salih Farhan, Besma mohammed Fahad

Subject: Engineering, Civil Engineering Keywords: Composite materials; polymeric composite; hybrid composites; ultrasonic test; acous-tic importance

Online: 26 May 2023 (05:18:45 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1692.v1

Inelastic Behavior of Steel and Composite Frame Structure Subjected to Earthquake Loading

P. D. Gajbhiye, Nuha S Mashaan, V. Bhaiya, Rajan Wankhadeb, S. P. Vishnu

Subject: Engineering, Civil Engineering Keywords: Direct integration time history analysis; Response spectrum analysis; Push over analysis; Near field earthquake; Far field earthquake; ETABS

Online: 24 May 2023 (04:42:44 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1691.v1

Effect of Bending Load and Sulfate Erosion on the Properties of Cementitious Materials

Yong Wen, Yuhang Li, Guoqi Han, Lang Liu, Chao Zhang, Yanyu Feng

Subject: Engineering, Civil Engineering Keywords: bending load; sulfate erosion; dry and wet cycle; cement-based materials; ion concentration; numerical simulation

Online: 24 May 2023 (04:38:30 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1593.v1

A Comprehensive Analysis of Static and Dynamic Load Tests of a Long-Span Cable-Stayed Bridge with a Ground-Based Radar Interferometer

Yaowen Chen, Qihuan Huang, Tingbin Zhang, Ming Zhou, Liming Jiang

Subject: Engineering, Civil Engineering Keywords: ground-based radar; interferometry; non-contact measurement; load test; displacements; cable-stayed bridge

Online: 23 May 2023 (07:21:33 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1490.v1

Surrogate-Based Physics-Informed Neural Networks for Elliptic Partial Differential Equations

Peng Zhi, Yuching Wu, Cheng Qi, Tao Zhu, Xiao Wu, Hongyu Wu

Subject: Engineering, Civil Engineering Keywords: Surrogate Model; Convolutional Neural Network; Physics-Informed Neural Networks; Elliptic PDE; FEM

Online: 22 May 2023 (09:48:22 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1373.v1

Development of Monthly Scale Precipitation Forecasting Model for Indian Subcontinent Using Wavelet Based Deep Learning Approach

Pavan Kumar Yeditha, Anusha Ganapathiraju, Siva Shyam Sai Nandikanti, Maheswaran Rathinasamy

Subject: Engineering, Civil Engineering Keywords: monthly precipitation forecast; wavelet-based machine learning; teleconnections

Online: 19 May 2023 (04:12:22 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1307.v1

Research on Performance Zoning of Asphalt Pavement in Xinjiang and Performance Grade(PG) of Asphalt Binder in Karamay

Chaofei Dong, Liqun Feng, Yafeng Xu

Subject: Engineering, Civil Engineering Keywords: Performance zoning; Superpave; Performance grade; Dynamic shear rheometer; Bending beam rheometer

Online: 18 May 2023 (08:49:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1180.v1

Strength and Electrical Properties of Cementitious Composite With Integrated Carbon Nanotubes

Anna Lushnikova, Olivier Plé, Yago De-Souza-Gomes, Xiaohui JIA, Wei YANG

Subject: Engineering, Civil Engineering Keywords: carbon nanotubes; tobermorite; cement mortar; electrical and mechanical properties; molecular dynamics

Online: 17 May 2023 (04:26:55 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1167.v1

Deep Learning-Based Modeling of Daily Suspended Sediment Concentration and Discharge in Esopus Creek

Marzieh Khosravi, Shima Ghoochani, Neda Nazemi

Subject: Engineering, Civil Engineering Keywords: Water quality; suspended sediment; discharge; LSTM; deep neural network

Online: 17 May 2023 (02:20:22 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1140.v1

Development and Preliminary Application of Temperature Stress Test Machine for Cast-in-Place Inner Shaft Lining

Chi Zhang, Shuaishuai Wang, Tao Zhang, Dahai Li, Hairui Cheng

Subject: Engineering, Civil Engineering Keywords: temperature stress test machine; concrete; hydration heat; shaft lining; degree of restraint

Online: 16 May 2023 (09:35:14 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0959.v1

Methods to Reproduce in-Plane Deformability of Orthotropic Floors in Finite Element Models of Buildings

Giada Frappa, Igino Pitacco, Simone Baldassi, Margherita Pauletta

Subject: Engineering, Civil Engineering Keywords: RC floors; orthotropic floors; lightening elements; shell element; in-plane deformability; finite element model; homogenization method

Online: 12 May 2023 (13:49:51 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0903.v1

Modeling of Sulfur and Iron Dynamics in Enclosed Bay Sediments and Evaluation of the Suppression Effect on Sulfides Release by Iron

Fumika Mochida, Takashi Miyatsuji, Yoshiyuki Nakamura, Tetsunori Inoue

Subject: Engineering, Civil Engineering Keywords: sediment model; sulfur and iron cycles; semi-enclosed bay

Online: 12 May 2023 (08:11:39 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0815.v1

Detecting and Evaluating Displacement of Paving Blocks Adjacent to Deep Excavation Sites Using Terrestrial Photogrammetry

Taesik Kim, Ho Choi, Jinman Jung, Hong Min, Young-Hoon Jung

Subject: Engineering, Civil Engineering Keywords: terrestrial photogrammetry; deep excavation; paving block; displacement detection

Online: 11 May 2023 (07:41:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0737.v1

Interpretable Machine Learning for Assessing the Cumulative Damage of a Reinforced Concrete Frame Induced by Seismic Sequences

Petros C. Lazaridis, Ioannis E. Kavvadias, Konstantinos Demertzis, Lazaros Iliadis, Lazaros K. Vasiliadis

Subject: Engineering, Civil Engineering Keywords: seismic sequence; interpretable machine learning; successive earthquakes; seismic dama-ge prediction; seismic damage accumulation; machine learning; explainable machine learning

Online: 10 May 2023 (10:35:55 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0701.v1

A Vision-Based System for Inspection of Expansion Joints in Concrete Pavement

Ibragimov Eldor, Jong-Jae Lee, Heungbae Gil, Jung Hee Lee

Subject: Engineering, Civil Engineering Keywords: vision-based system; deep learning; image processing; road surface damage; expansion joint, concrete pavement

Online: 10 May 2023 (07:58:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0644.v1

Bearing Behavior of Cold-Formed Thick-Walled Steel Plates with Single Bolt

Lingling Wang, Xin Zhu

Subject: Engineering, Civil Engineering Keywords: thick-walled steel; shear connection; bearing resistance; elongation of bolt hole; deformation mode

Online: 9 May 2023 (11:50:46 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0630.v1

Advanced Video-Based Processing for Low-Cost Damage Assessment of Buildings under Seismic Loading in Shaking Table Tests

Antonino Cataldo, Ivan Roselli, Vincenzo Fioriti, Fernando Saitta, Alessandro Colucci, Angelo Tatì, Felice Carlo Ponzo, Rocco Ditommaso, Canio Mennuti, Alessandro Marzani

Subject: Engineering, Civil Engineering Keywords: video-based; structural damage; low-cost method

Online: 9 May 2023 (09:52:46 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0411.v1

Effect of the Addition of Re on the Microstructure and Phase Composition of Haynes 282: Ab Initio Modelling and Experi-Mental Investigation of Additively Manufactured Specimens

Antoni Wadowski, Jan S. Wróbel, Milena Koralnik, Ryszard Sitek

Subject: Engineering, Civil Engineering Keywords: ab initio calculation; short-range ordering; rhenium effect; nickel alloys; additive manufacturing

Online: 6 May 2023 (10:13:49 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0385.v1

Modelling Dam Break Events Using Shallow Water Model

Alessandro Annunziato, Guney Doğan Bingöl, Ahmet Cevdet Yalciner

Subject: Engineering, Civil Engineering Keywords: Dam; Dam Break; Flooding; Modelling; Early Warning Systems

Online: 6 May 2023 (05:42:11 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0382.v1

Experimental Study on Seismic Performance of CFRP Strengthened Recycled Concrete Columns with Different Levels of Seismic Damage

Shuai Song, Zhen Tian, Zhenyu Zhao, Xi Li, Jianfeng Zhao, Baishun Xu

Subject: Engineering, Civil Engineering Keywords: carbon fiber composites; recycled concrete; recycled aggregate replacement rate; levels of seismic damage; pseudo-static test

Online: 6 May 2023 (05:32:27 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0338.v1

Climate Change Impacts on Frost and Thaw Considerations: Case Study of Airport Pavement Design in Canada

Paula Sutherland Rolim Barbi, Pejoohan Tavassoti, Susan L Tighe

Subject: Engineering, Civil Engineering Keywords: Climate change; Pavement; Airport Runway; Frost depth; Freeze/Thaw, Permafrost

Online: 5 May 2023 (09:43:08 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0316.v1

Fiber Reinforced Mortar 3D Printed Without Extrusion. Fresh Properties, Mechanical Characteristics and Process Characterization

Dragoș Ungureanu, Cătălin Onuțu, Dorina Nicolina Isopescu, Nicolae Țăranu, Ștefan Vladimir Zghibarcea, Ionuț Alexandru Spiridon, Răzvan Andrei Polcovnicu

Subject: Engineering, Civil Engineering Keywords: 3D printing; fiber reinforced mortar; fresh properties; hardened properties; additive manufacturing

Online: 5 May 2023 (07:30:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0292.v1

Enhancing the Shear Capacity of RC Beams with Web Openings in Shear Zones Using Pre-Stressed Fe-SMA Bars: Numerical Study

Mohamed Elkafrawy, Ahmed Khalil, Mohammad AlHamaydeh, Rami Hawileh, Wael Abuzaid

Subject: Engineering, Civil Engineering Keywords: Fe-SMA; RC beams; opening; shear strength; strengthening

Online: 5 May 2023 (04:01:09 CEST)

Show abstract| Download PDF| Share

This paper aims to investigate the feasibility of strengthening the web opening in the shear zone of RC beams by using iron-based shape memory alloy (Fe-SMA) bars. To conduct this study, numerical analysis with ABAQUS software was employed. The research was divided into six groups of beams with web openings of different lengths (150, 300, and 450 mm), prestressing levels (0%, 30% and 60%), and reinforcement diameters (14, 18, and 22 mm) of Fe-SMA bars. The results show that the presence of web openings can cause a significant reduction in the cracking and ultimate loads of the beams, with reductions ranging from 11 to 50% and 36 to 48%, respectively. However, by adding pre-stressed Fe-SMA bars around small web openings (100×150 mm), the shear capacity of the beam is restored, and the beam exhibits behavior similar to solid beams. Additionally, activating the Fe-SMA bars by 30 and 60% resulted in almost similar cracking loads but improved load-carrying capacity of the beam with small openings by 12% and 9%, respectively, compared to the solid beam. The technique proposed for enhancing shear strength is most effective for beams with small (100×150 mm) and medium (100×300 mm) web openings as it can restore both the beam’s shear strength and stiffness. However, for beams with larger web openings (100×450 mm), the use of activated Fe-SMA beams can recover almost 90% of the solid beam's shear capacity. Furthermore, reinforcing small openings with Fe-SMA bars of different diameters enhances beam shear capacity and stiffness, while for larger openings, higher Fe-SMA reinforcement ratios could potentially restore the beam's full strength and stiffness. This study emphasizes the importance of strengthening web openings in RC beams, particularly in shear zones, and provides significant insights into how to strengthen beams with web openings, thereby contributing to developing safer structures. However, further laboratory experiments are recommended to validate, complement and extend the findings of this numerical study.

Preprint ARTICLE | doi:10.20944/preprints202305.0164.v1

Laboratory Tests Using Distributed Fiber Optical Sensors to Validated a Future Field Application for Strain Monitoring Pile

Rodrigo Moraes Silveira, Marcelo Buras, André Luiz Delmondes Pereira Filho, Juliana Ferreira Fernandes, Marcos Massao Futai

Subject: Engineering, Civil Engineering Keywords: distributed fiber optics; tensile tests; single mode fiber

Online: 4 May 2023 (02:56:37 CEST)

Show abstract| Download PDF| Share

The use of fiber optics as a tool for different kinds of geotechnical monitoring can become highly attractive and cost effective when compared to conventional instruments such as piezometers, inclinometers, among others. A single fiber optic cable may cover a larger monitoring area compared to conventional instrumentation, and the possibility of monitoring more than one physical quantity with the same fiber optic cable. Consulting the literature, it is possible to find several different examples where distributed fiber optic systems are being used. For the use of any sensor, a calibration curve is required. In the case of strain sensors, calibration is required to derive strain values from the frequency measurement quantity. However, fiber optic sensor cable manufacturers often do not provide their own calibration parameters and consult the values in specialized literature, which can result in monitoring errors. In this context, this article presents a bench adjusted for tests on single mode fiber optic cables, as well as results of tensile tests aimed at defining the function of strain variations of two different optical fiber cables, manufactured by different companies, using two different distributed interrogators. This paper also proposes a methodology for calibrating of the fiber optic cables deformation since the calibration parameters are provided by the cable manufacturers, which can result in errors depending on the application. It should be noted that there are few manufacturers of fiber optic cables aimed at application in civil engineering. Therefore, with the calibration methodology proposed in this paper, it is intended to transmit to the academic community the possibility of obtaining calibration parameters of any fiber optic cable, even those manufactured for telecommunications purposes and not only for cables manufactured with the intended use in civil engineering. Because of this fact, researchers will not be restricted to the acquisition of special cables for their applications. Based on the results, it was possible to conclude that the application of calibrated fiber optic sensors in experimental piles foundations is viable, in order to evaluate the load-displacement behavior of these elements, under different loading conditions.

Preprint ARTICLE | doi:10.20944/preprints202305.0121.v1

Coating Condition Detection and Assessment on the Steel Girder of a Bridge through Hyperspectral Imaging

Pengfei Ma, Jiaoli Li, Ying Zhuo, Pu Jiao, Genda Chen

Subject: Engineering, Civil Engineering Keywords: steel girder; nondestructive inspection; corrosion; coating degradation; spectroscopic analysis; hyperspectral imaging

Online: 3 May 2023 (09:22:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.1177.v1

Research on Performance Deterioration of Multi-walled Carbon Nanotube-lithium Slag Concrete under the Coupling Effect of Sulfate Attack and Dry-wet Cycles

Yifei Zhang, Yongjun Qin, Zheyi Guo, Dongjin Li

Subject: Engineering, Civil Engineering Keywords: MWCNTs concrete; dry-wet cycle; sulfate attack; pore deterioration; X-CT scanning

Online: 28 April 2023 (11:12:21 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.1147.v1

Variable Speed Control in PATs: Theoretical, Experimental and Numerical Modelling

Frank Plua, Francisco-Javier Sánchez-Romero, Victor Hidalgo, Petra Amparo López-Jiménez, Modesto Pérez-Sánchez

Subject: Engineering, Civil Engineering Keywords: pump as turbine (PAT); computational fluid dynamics; variable rotational nominal speed; OpenFoam

Online: 28 April 2023 (08:39:54 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.1002.v1

Exploring Stakeholder Engagement Process as The Success Factor for Infrastructure Projects

Kristijan Robert Prebanić, Mladen Vukomanović

Subject: Engineering, Civil Engineering Keywords: stakeholder; engagement; project success; factors; criteria; governance; infrastructure; framework model

Online: 26 April 2023 (15:25:01 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0995.v1

Bikeshare Usage Patterns and Interactions with Other Modes

Jianhe Du, Hesham Rakha

Subject: Engineering, Civil Engineering Keywords: Bikeshare; COVID-19; Bicycles

Online: 26 April 2023 (13:11:27 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.0981.v1

Skid Resistance of Asphalt Pavements

László Gáspár, Szabolcs Rosta

Subject: Engineering, Civil Engineering Keywords: asphalt pavements; skid resistance; surface texture; COST Action 354; macro-texture.

Online: 26 April 2023 (11:16:19 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0952.v1

A New Calculation Method of Force and Displacement of Retaining Wall and Slope

Yingfa Lu, Wenqing Sun, Hao Yang, Junjie Jiang, Lier Lu

Subject: Engineering, Civil Engineering Keywords: numerical theoretical solution; equilibrium equation; stress and strain distribution; slope; retaining wall

Online: 26 April 2023 (04:00:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0915.v1

Experimental Study on Expansive Soil Improved by Lignin and Its Derivatives

Yi Cai, MingXi Ou

Subject: Engineering, Civil Engineering Keywords: composite improved soil; expansive soil; lignin and its derivatives; mechanical properties; micro characteristics; improvement mechanis

Online: 25 April 2023 (09:57:31 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0913.v1

Experimental Study on Expansive Soil Improved by Lignin and Its Derivatives

Yi Cai, MingXi Ou

Subject: Engineering, Civil Engineering Keywords: Composite improved soil; expansive soil; lignin and its derivatives; mechanical properties; micro characteristics; improvement mechanis

Online: 25 April 2023 (09:49:07 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0826.v1

Numerical Analysis of New Stainless Steel Corrugated Plate Reinforcement of Shield Tunnel Segmental Joints Based on Virtual Tracking Element Technology

Wenqi Ding, Chang Ma, Yingjie Guo, Xiaoran Li, Shuobiao Li

Subject: Engineering, Civil Engineering Keywords: numerical analysis; virtual tracking element; segmental joints; stainless steel corrugated plate; tunnel reinforcement

Online: 24 April 2023 (05:14:49 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.0748.v1

Use of Sawdust Fibers For Soil Reinforcement: A Review

Carlos J. Medina-Martinez, Luis Carlos Sandoval-Herazo, Sergio A. Zamora-Castro, Rodrigo Vivar-Ocampo, David Reyes-Gonzalez

Subject: Engineering, Civil Engineering Keywords: soil improvement; natural fibers; engineering properties; shearing strength; bearing capacity

Online: 23 April 2023 (03:39:46 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0702.v1

Development and Validation of Correlation Charts to Predict the Undisturbed Ground Temperature of Pakistan; a Step Toward Potential Geothermal Energy Exploration

Tabish Ali, Waseem Haider, And Arif Hussain

Subject: Engineering, Civil Engineering Keywords: Geothermal Energy, Ground Temperature, Correlation Chart, Soil Types, Temperature Equation

Online: 21 April 2023 (09:27:30 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0684.v1

High Temperature Rheological Properties and Storage Stability of Bitumen Modified with The Char Produced from Co-Pyrolysis of Different Wastes

Neslihan Atasağun

Subject: Engineering, Civil Engineering Keywords: modified bitumen; co pyrolysis; char; viscosity; storage stability; wastes

Online: 21 April 2023 (08:19:13 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0521.v1

Numerical Modeling of the Dynamic Elastic Modulus of Concrete

Gustavo de Miranda Saleme Gidrão, Ricardo Carrazedo

Subject: Engineering, Civil Engineering Keywords: dynamical properties; dynamic elastic modulus; concrete; mortar; mixture parameters; acoustic test; composite theory

Online: 18 April 2023 (11:09:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0481.v1

Experimental and Numerical Optimization Study on Performance of Solar Phase Change Thermal Energy Storage System

Yuqing Tang, Neng Zhu, Siqi Li, Yingzhen Hou

Subject: Engineering, Civil Engineering Keywords: phase change thermal energy storage device; solar energy; heat storage and release performance; experimental study; numerical simulation

Online: 18 April 2023 (04:20:30 CEST)

Show abstract| Download PDF| Share

Promoting the use of solar energy resources has always faced the challenges of instability and supply-demand mismatch. The key to solving these issues is to efficiently store and utilize solar energy resources using high-performance heat storage devices. This study designed a high-performance shell-and-tube phase change thermal storage device and established a numerical model using ANSYS software to summarize the device's dynamic melting law. To verify the accuracy of the numerical simulation, a performance testing platform for the phase change thermal storage device was built to investigate the impact of factors such as inlet water temperature, inlet water flow rate, type of heat storage, and initial temperature of the device, and to reveal the change law of the device's performance. The results show that the inlet water temperature has the most significant impact on the device's heat storage and release performance. When the device's heat storage or release is used for heating, changing the inlet water flow rate has a weak and limited effect on the device's performance. However, when the device's heat release is used to provide domestic hot water, increasing the makeup water temperature and reducing the inlet water flow rate can significantly improve the device's effective heat release. Furthermore, based on the experimental validation of the model's correctness, this study further simulated and studied the impact of different factors on the device's heat storage process to optimize its structural design and provide technical references for the device's actual operation and installation. The results show that the placement of fins has a negligible effect on the performance of the heat storage device while reducing the fin spacing and increasing the fin thickness can significantly improve the melting efficiency of the phase change material (PCM). Additionally, the heat storage characteristics of the device are significantly better in the vertical installation mode than in the horizontal installation mode. This study provides theoretical guidance and technical references for the design and use of phase change thermal storage devices.

Preprint ARTICLE | doi:10.20944/preprints202304.0444.v1

Effect of a Novel Dowel and Cramp On In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Ahmad Javid Zia, Abdulkerim İLGÜN

Subject: Engineering, Civil Engineering Keywords: Dowels and cramps; Diagonal compression test; Multi-leaf stone wall; shear test; Compression test

Online: 17 April 2023 (10:26:23 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0431.v1

Characteristics of Corrosion Products of Friction-type High-Strength Bolted Joints of Steel Bridge: A Case Study

Gangnian Xu, Wenpeng Xu, Xu Dong, Shengwei Fan, Xianggang Wang

Subject: Engineering, Civil Engineering Keywords: steel bridge; connection node; friction type high-strength bolt; corrode; SEM; EDS; XRD

Online: 17 April 2023 (09:30:15 CEST)

Show abstract| Download PDF| Share

This paper analyzed the main diseases of the friction high-strength bolt (FHSB) joints in order to study the characteristics of the corrosion products of the joints in steel bridge and the influence factors. Seven representative FHSB connection pairs and eight steel plate samples were selected from the Dongying Shengli Yellow River Bridge, which has been in operation for 33 years. Then Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS) and X-Ray Diffraction (XRD) were used to analyze the microscopic morphology and chemical composition of the corroded surface of the samples. Finally, this paper discussed the relationship between the corroded sample surface and the environmental corrosion. The research results showed that construction quality problems, such as non-standard hole expansion, segmental slab joint dislocation and contact surface pollution, accelerated corrosion of the contact surface. With the increase of corrosion degree of joints, the contact surface of aluminum spraying layer gradually changed from a rugged and dense state to a smooth and porous powder state. With the corrosion of the steel plate substrate, the contact surface gradually changed from a fluffy stratified state to a surface bonding state. It was inferred that the friction coefficient of the FHSB connection node on the corroded aluminum sprayed contact surface first decreased and then increased. The corroded node samples detected not only a large number of S and Cl elements, but also the oxides of Mn, Si and other elements as well as FeS. It was speculated that node corrosion was also related to atmospheric (acid rain) and industrial dust and other corrosive environments. Almost all samples detected the component SiO2 of the Yellow River soil, as well as Mg, Ca, K, Na and other elements at the same time, which is basically consistent with the component elements of the Yellow River soil. Therefore, it was inferred that it was related to the inclusion of the Yellow River soil.

Preprint ARTICLE | doi:10.20944/preprints202302.0086.v2

Simultaneous Prediction of Stream-Water Variables Using Multivariate Multi-Step Long Short-Term Memory Neural Network

Marzieh Khosravi, Bushra Monowar Duti, Munshi Md Shafwat Yazdan, Shima Ghoochani, Neda Nazemi, Hanieh Shabanian

Subject: Engineering, Civil Engineering Keywords: Deep neural network; long short-term memory; water quality; discharge; stream-water

Online: 17 April 2023 (07:21:31 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.0372.v1

Experimental, Theoretical and Numerical Research Progress on Dynamic Behaviors of RC Structural Members

Rouhan Li, Mao Gao, Hongnan Li, Chao Li, Debin Wang

Subject: Engineering, Civil Engineering Keywords: reinforced concrete members; dynamic effect; experimental test; dynamic modified model; numerical modelling

Online: 17 April 2023 (02:48:59 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0116.v1

Development of Flood Early Warning Frameworks for the Small Streams in Korea

Tae-Sung Cheong, Changwon Choi, Sung-Je Yei, Jihye Shin, Seojun Kim, Kang-Min Koo

Subject: Engineering, Civil Engineering Keywords: extreme rainfall event; small stream basins; flood early warning framework; the closed-circuit television-based automatic discharge measuring technology; discharge and depth

Online: 7 April 2023 (05:38:05 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0013.v1

Side-Stream Enhanced Biological Phosphorus Removal (S2EBPR) Enables Effective Phosphorus Removal in a Pilot-scale Shortcut Nitrogen Removal System

Dongqi Wang, Il Han, Kester McCullough, Stephanie Klaus, Jangho Lee, Varun Srinivasan, Mengbo Huang, Zijian Leo Wang, Guangyu Li, Yuan Yan, Kailong Li, Lu Qin, Charles B. Bott, Jim McQuarrie, Beverley M. Stinson, Christine deBarbadillo, Paul Dombrowski, James Barnard, April Z. Gu

Subject: Engineering, Civil Engineering Keywords: side-stream EBPR; shortcut nitrogen removal; partial nitrification; endogenous denitrification; microbial ecology

Online: 3 April 2023 (07:31:13 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0541.v1

Improvement of Core-Shell Lightweight Aggregate by Modifying the Cement-EPS Interface

Chaoming Pang, Chunpeng Zhang, Peijuan Li

Subject: Engineering, Civil Engineering Keywords: EPS; Interface; Lightweight aggregate; Hydration products

Online: 31 March 2023 (03:38:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0268.v1

Bearing Capacity and Sustainable Construction of Vacuum Drainage Pipe Pile

Wei-Kang Lin, Xiao-Wu Tang, Yuan Zou, Jia-Xin Liang, Ke-Yi Li

Subject: Engineering, Civil Engineering Keywords: pile; sustainable construction; soft soil; compressive bearing capacity; carbon emission

Online: 15 March 2023 (02:47:13 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0165.v1

Modelling Time–Dependent Flow through Railway Ballast

Raed Alrdadi, Michael H. Meylan

Subject: Engineering, Civil Engineering Keywords: free surface; steady state; unsteady state; railway ballast; fouling ratio; specific yield; finite element method

Online: 9 March 2023 (03:31:03 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0129.v1

Applicability of Electrochemical Chloride Extraction to Concrete Made With Different Binders

Thamara Tofeti Lima

Subject: Engineering, Civil Engineering Keywords: electrochemical chloride extraction; GGBS; PFA; silica fume; corrosion rehabilitation; OPC replacement

Online: 7 March 2023 (08:49:56 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0124.v1

A Multidisciplinary Approach to Earthquake Hazard Reduction in Historic Urban Areas via 3D Printing

Ali Jahangiri, Narjes Foroozan, Mohammad Jahangiri

Subject: Engineering, Civil Engineering Keywords: Conservation; 3D printing; Earthquake; Historical area; Strengthening; Consolidation

Online: 7 March 2023 (03:40:33 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0050.v1

Optimizing the CO2 emission of composite steel‐concrete beams with external prestressing

Kamila Madeira Fiorotti, Adenílcia Fernanda Grobério Calenzani, Elcio Cassimiro Alves

Subject: Engineering, Civil Engineering Keywords: Composite steel-concrete beams; External prestressing; CO2 emission optimization, Particle Swarm Optimization; Genetic Algorithm

Online: 3 March 2023 (01:40:38 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0021.v1

Experimental-AI Investigation of the Effect of Particle Shape on the Damping Ratio of Dry Sand under Simple Shear Test Loading

Abolfazl Baghbani, Susanga Costa, Roohollah Shirani Faradonbeh, Amin Soltani, Hasan Baghbani

Subject: Engineering, Civil Engineering Keywords: Soil dynamic; Cyclic simple shear; Damping ratio; Sand particle shape; ANN; SVM

Online: 1 March 2023 (10:56:01 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0518.v1

Adjustment of Tall Buildings Behavior by Guided Optimization of Magnetorheological-Dampers Control Parameters

Amin Akhnoukh, Ahmed Farid, Ahmed Hasan, Youssef Rashed

Subject: Engineering, Civil Engineering Keywords: MR-dampers, structural control, MR-fluids, seismic excitation, smart buildings

Online: 28 February 2023 (10:02:17 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0453.v1

The Visual Behaviour of the Cyclist: The Comparison Be-Tween Simulated and Real Scenario

Ennia Mariapaola Acerra, Murad Shoman, Hocine Imine, Claudia Brasile, Claudio Lantieri, Valeria Vignali

Subject: Engineering, Civil Engineering Keywords: visual behaviour; bicycle simulator; eye tracking; cyclist safety

Online: 27 February 2023 (07:17:39 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0432.v1

Impact of Climate Change and Consumptive Demands on the Performance of São Francisco River Reservoirs, Brazil

Marx Vinicius Maciel da Silva, Carlos Eduardo Sousa Lima, Cleiton da Silva Silveira

Subject: Engineering, Civil Engineering Keywords: Climate Change; Consumptive Demands; São Francisco River reservoirs.

Online: 27 February 2023 (02:35:08 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0076.v2

Traffic Flow with the Adaptive Cruise Control: The Comparison between Autonomous and Manual Driving

Ennia Mariapaola Acerra, Claudia Brasile, Claudio Lantieri, Valeria Vignali

Subject: Engineering, Civil Engineering Keywords: Perception-reaction time; speed; driving behavior; connected and autonomous vehicles (CAVs); gaze

Online: 24 February 2023 (09:05:57 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0376.v1

Microstructure and Strength Parameter of Cement Stabilized Loess

Mani Axel, Xi`an Li, Feng Wen, Ming Xiao An

Subject: Engineering, Civil Engineering Keywords: Loess stabilization; Cement; Mechanical properties; Landslide; Microstructure

Online: 22 February 2023 (06:59:38 CET)

Show abstract| Download PDF| Share

In this study, cement is used as the component that provides the stabilizing effect in order to evaluate the hardness and stability of loess soil. To assess the strength characteristics of loess soil reinforced with cement, samples were created with four different cement contents and three different curing times. The materials were put through a series of tests to determine their flexural strength, direct shear strength, indirect tensile strength, and unconfined compressive strength. An appropriate cement dosage was found, in addition to a durability index that could be used to quantify the effect of water absorption investigations on cement-stabilized loess. Both of these discoveries were made simultaneously. Analyses of investigations such as scanning electron microscopy (SEM) and energy dispersive X-ray fluorescence spectrometry (XRF) examinations were carried out so that the fundamental mechanics of the materials could be comprehended. According to the findings, the cohesion of cement-stabilized loess is significantly more sensitive to structure than the friction angle of the material, and the cohesion is responsible for the increase in shear strength after remolding. To get the desired level of strength, it is necessary to adjust the cement's proportions. In addition, as the curing period progresses, we see an increase in the cement-stabilized loess's resistance and stiffness. This is because of the interactions that take place between the structure and the mineral composition. It is believed that this event was caused by the cementation that occurs naturally. As a consequence of this reaction, the production of new cementitious materials takes place. The cation exchange that causes the hydration and pozzolanic reaction that leads to the creation of aggregates and interparticle flocculation is responsible for their production. These findings suggest that cement may be utilized as a simple and effective method of loess stabilization, which will ultimately result in improved performance of the loess.

Preprint ARTICLE | doi:10.20944/preprints202112.0505.v2

Adaptive, Resilient Urban Underground Space (UUS)-Subsidence and Economic Impact Spatial Planning Model (USEM): The Extent Development Impact via Cause-Effect and Spatiotemporal Analyses Circa 1960-2020-2050 in Shanghai Megacity

Muhammad Akmal Hakim bin Hishammuddin, Jianxiu Wang, Muhammad Azizol Bin Ismail, Tianliang Yang, Xinlei Huang, Hasanuddin Z. Abidin, Soheil Sabri, Chin Siong Ho, Kasturi Devi Kanniah, Keng Ying Wong

Subject: Engineering, Civil Engineering Keywords: Land subsidence; urban underground space; cause-effect; spatiotemporal; economic impact; spatial planning model; Shanghai

Online: 20 February 2023 (13:02:01 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0340.v1

Improving Concrete Infrastructure Projects Conditions by Mitigating Alkali-Silica Reactivity of Fine Aggregates

Amin Akhnoukh

Subject: Engineering, Civil Engineering Keywords: ASR; Aggregates; Moisture; Mortar bas test; Supplementary cementitious materials

Online: 20 February 2023 (10:23:21 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0285.v1

High Strength Ternary Concrete Mix Development for Precast Industry

Amin Akhnoukh, Hala Elia

Subject: Engineering, Civil Engineering Keywords: fly ash; silica fume; supplementary cementitious materials; pozzolans; strength

Online: 16 February 2023 (10:04:09 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0277.v1

Staircase Wetlands for the Treatment of Greywater and the Effect of Greywater on Soil Biodiversity

Ghulam Qadir, Vanessa Pino, Arianna Brambilla, Fernando Alonso-Marroquin

Subject: Engineering, Civil Engineering Keywords: sustainability; water recycling; grey water reuse; soil biodiversity; climate change; water scarcity

Online: 16 February 2023 (07:37:06 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0236.v1

Reinforcement learning for the face support pressure of tunnel boring machines

Enrico Soranzo, Carlotta Guardiani, Wei Wu

Subject: Engineering, Civil Engineering Keywords: Tunnelling; Tunnel Boring Machine; Support pressure; Face stability; Reinforcement Learning; Machine Learning; Deep-Q-Network

Online: 14 February 2023 (06:10:35 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0165.v1

Laboratory Comparison of Evaporation Rate Between Colorado Sanken Evaporation Pan and Class A Evaporation Pan (Case Study: Semnan, Iran)

Hamidreza Ghazvinian, Hojat Karami, Changhyun Jun, Oceana Francis, Sayed M Bateni, Yashar DadrasAjirlou, Shahab Band

Subject: Engineering, Civil Engineering Keywords: Evaporation; Class A standard evaporation pan; Colorado Sanken standard evaporation pan; Semnan

Online: 9 February 2023 (11:24:29 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0109.v1

Evaluation of Wastewater Discharge Reduction Scenarios in the Buenaventura Bay

Francisco Fernando Garcia, Gustavo Chang, Gustavo Hernandez

Subject: Engineering, Civil Engineering Keywords: Hydrodynamic model; Water quality model; Colombian Pacific coast; Marine pollution; Fecal col-iforms

Online: 7 February 2023 (02:35:39 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0086.v1

Simultaneous Prediction of Stream-Water Variables Using Multivariate Multi-Step Long Short-Term Memory Neural Network

Shima Ghoochani, Neda Nazemi

Subject: Engineering, Civil Engineering Keywords: Deep neural network; long short-term memory; water quality; discharge; stream-water

Online: 6 February 2023 (07:59:07 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202108.0125.v3

Self-Organized Criticality of Traffic Flow: Implications for Congestion Management Technologies

Jorge Laval

Subject: Engineering, Civil Engineering Keywords: traffic flow; kinematic wave model; self-organized criticality; fractals; complexity; catastrophe theory; non-equilibrium critical phenomena

Online: 3 February 2023 (13:50:11 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0064.v1

Effects of Riparian Vegetation on the Evolution of an Experimental Meandering Channel Downstream a Scour Pit

Xiaolong Song, Haijue Xu, Yuchuan Bai

Subject: Engineering, Civil Engineering Keywords: Riparian vegetation; Experimental meandering channel; Scour pit; Downstream scroll bars; Inner-bank cutting; evolutionary spectral analysis

Online: 3 February 2023 (08:50:20 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202208.0226.v2

Effect of the Trip-Length Distribution on Network-Level Traffic Dynamics: Exact and Statistical Results

Jorge Laval

Subject: Engineering, Civil Engineering Keywords: Traffic flow, Macroscopic Fundamental diagram, Aggregated network models

Online: 31 January 2023 (02:51:38 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0468.v1

Development and Evaluation of a Cellular Vehicle-to-Everything Enabled Energy-Efficient Dynamic Routing Application

Mohamed Farag, Hesham A. Rakha

Subject: Engineering, Civil Engineering Keywords: C-V2X; Eco-routing; ITS; CAV; VANET; Smart cities; environmental applications; vehicular networks; V2V; V2I

Online: 26 January 2023 (04:11:31 CET)

Show abstract| Download PDF| Share

Cellular Vehicle-to-Everything (C-V2X) is a communication technology that supports various safety, mobility, and environmental applications given its higher reliability properties compared to other communication technologies. The performance of these C-V2X-enabled Intelligent Transportation System (ITS) applications is affected by the performance of the C-V2X communication technology (mainly packet loss). Similarly, the performance of the C-V2X communication is dependent on the vehicular traffic density which is affected by the traffic mobility patterns, and vehicle routing strategies. Consequently, it is critical to develop a tool that can simulate, analyze, and evaluate the mutual interactions of the transportation and communication systems at the application level and to the evaluate the benefits of the C-V2X enabled ITS applications. In this paper, we demonstrate the benefits gained when using C-V2X Vehicle-to-Infrastructure (V2I) communication technology in an energy-efficient dynamic routing application. Specifically, we develop a Connected Energy-Efficient Dynamic Routing (C-EEDR) application using C-V2X as a communication medium in an integrated vehicular traffic and communication simulator (INTEGRATION). The results demonstrate that the C-EEDR application achieves fuel savings of up to 16.6% and 14.7% in the IDEAL and C-V2X communication cases, respectively for a peak hour demand on the downtown Los Angeles network considering a 50% level of market penetration of connected vehicles. The results demonstrate that the fuel savings increase with increasing levels of market penetration at lower traffic demand levels (25% and 50% the peak demand). At higher traffic demand levels (75% and 100%) the fuel savings increase with increasing levels of market penetration with maximum benefits at a 50% market penetration rate. Although the communication system is affected by the high density of vehicles at the high traffic demand levels (75% and 100% the peak demand), the C-EEDR application manages to perform reliably producing system-wide fuel consumption savings.The C-EEDR application achieves fuel savings of 15.2% and 11.7% for the IDEAL communication and 14% and 9% for the C-V2X communication at the 75% and 100% market penetration rates, respectively. Finally, the paper demonstrates that the C-V2X communication constraints only affect the performance of the C-EEDR application at the full demand level when the market penetration of connected vehicles exceeds 25%. This degradation, however is minimal (less than a 2.5% reduction in fuel savings).

Preprint ARTICLE | doi:10.20944/preprints202301.0428.v1

Wave Effects on the Initial Dilution of Untreated Wastewater Discharge for Santa Marta´s Submarine Outfall (Colombia)

Francisco-Fernando García-Rentería, Gustavo Ariel Chang Nieto, Gustavo Hernández Cortés

Subject: Engineering, Civil Engineering Keywords: Near field; dilution; submarine outfall, waves effects

Online: 24 January 2023 (10:21:37 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0284.v1

Defining Psychological Factors of Active Transport in Developing Countries

Seyed-Mohammad Seyedhosseini, Mahdi Rashidi, Ali Naderan

Subject: Engineering, Civil Engineering Keywords: Cycling behaviour; Structural equation modelling (SEM); Latent variable; Individuals travel survey; Cyclists behavioural analysis

Online: 16 January 2023 (09:58:39 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0272.v1

Study of The Seismic Stress State of the "Subgrade - Base" System, Taking Into Account the Formation and Propagation of Surface Seismic Waves

Saulet Shayakhmetov, Algazy Zhauyt

Subject: Engineering, Civil Engineering Keywords: surface seismic waves; numerical experiment; horizontal; Fourier transforms; half-spaces

Online: 16 January 2023 (07:38:00 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0270.v1

A Selective Survey Review of Computational Intelligence Applications in the Primary Subdomains of Civil Engineering Specializations

Konstantinos Demertzis, Stavros Demertzis, Lazaros Iliadis

Subject: Engineering, Civil Engineering Keywords: Computational Intelligence; Machine/Deep Learning; Fuzzy Computing; Data Analysis; Blockchain; Cloud Computing; Internet of Things; Augmented Reality; Civil Engineering

Online: 16 January 2023 (04:47:54 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0064.v2

Energy-Based Prediction of the Peak and Cumulative Response of a Reinforced Concrete Building with Steel Damper Columns

Kenji Fujii, Momoka Shioda

Subject: Engineering, Civil Engineering Keywords: reinforced concrete moment-resisting frame; steel damper column; peak response; cumulative response; passive control structure; momentary energy input; pushover analysis

Online: 9 January 2023 (06:08:38 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0104.v1

Overheat Analysis on the Scania P380 Engine UsingFishbone Analysis Method

Andi Asrifan, Ismail Ramli, Siti Hajar

Subject: Engineering, Civil Engineering Keywords: Engine Overheating; Cooling System; Cylinder Head; Cylinder Blok

Online: 5 January 2023 (10:51:33 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0078.v1

The Effect of Wind Directions on the Aerodynamic Response of Classical Tensile Membrane Structures and General Forms Using Steady-State CFD Simulation

Mahyar Kazemian, Seyed hossein Hosseini Lavassani

Subject: Engineering, Civil Engineering Keywords: Wind engineering; Pressure coefficient; CFD simulation; Tensile membrane structure; Turbulence model; Form-Finding; Double curved models; General shapes

Online: 4 January 2023 (10:38:07 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0064.v1

Energy-Based Prediction of the Peak and Cumulative Response of a Reinforced Concrete Building with Steel Damper Columns

Kenji Fujii, Momoka Shioda

Subject: Engineering, Civil Engineering Keywords: reinforced concrete moment-resisting frame; steel damper column; peak response; cumulative response; passive control structure; momentary energy input; pushover analysis

Online: 4 January 2023 (04:09:58 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0062.v1

Experimental and Numerical Studies of Vertical Stresses Beneath the Circular Footings on Sand

Mehmet Salih Keskin, Selçuk Bildik, Mustafa Laman

Subject: Engineering, Civil Engineering Keywords: stress distribution; model sand; circular footing; finite element analysis

Online: 4 January 2023 (03:54:30 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0524.v1

Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures

Sindur Mangkoesoebroto, Adi Yasa, Ediansjah Zulkifli

Subject: Engineering, Civil Engineering Keywords: spectral matching; three components; component scales; phase angle; critical structures

Online: 28 December 2022 (02:25:36 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0451.v1

The Role of ADAS While Driving in Complex Road Contexts: Support or Overload for Drivers?

Gaetano Bosurgi, Orazio Pellegrino, Alessia Ruggeri, Giuseppe Sollazzo

Subject: Engineering, Civil Engineering Keywords: ADAS; Driving behavior; Cyclists; Road safety; Visual behavior

Online: 23 December 2022 (07:58:49 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202201.0248.v2

Integrating UAS Photogrammetry and Digital Image Correlation for Monitoring of Large Landslides

Francesco Mugnai, Andrea Masiero, Riccardo Angelini, Irene Cortesi

Subject: Engineering, Civil Engineering Keywords: Digital Image Correlation (DIC); Unmanned Aerial System (UAS); GNSS; monitoring

Online: 22 December 2022 (12:55:14 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0349.v1

Impacts of Spatiotemporal Gaps in Satellite Soil Moisture Data on Hydrological Data Assimilation

Khaled Mohammed, Robert Leconte, Mélanie Trudel

Subject: Engineering, Civil Engineering Keywords: data assimilation; soil moisture; EnKF; SMAP; WRF-Hydro

Online: 20 December 2022 (03:28:33 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0335.v1

Experimental Research on Collapsibility of Xi'an Loess Improved by Calcium Lignosulfonate

Zhentao Bai, Dongbo Li, Dong Zhao, Wei Lu, Jiaping Liu

Subject: Engineering, Civil Engineering Keywords: loess; calcium lignosulfonate; collapsibility; unconfined compression strength; strengthening mechanism

Online: 19 December 2022 (09:54:36 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202210.0074.v2

Selection of Adequate EPS-Block Geofoam for Use in Embankments Subjected to Seismic Loads

Marzieh Khosravi, David Arellano

Subject: Engineering, Civil Engineering Keywords: EPS; Geofoam; Embankments; Seismic; FLAC

Online: 16 December 2022 (08:18:31 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202211.0437.v3

Demystifying the Relationship Between River Discharge and Suspended Sediment Using Exploratory Analysis and Deep Neural Network Algorithms

Jones Mantey, Hamed Tohidi, Hanieh Shabanian

Subject: Engineering, Civil Engineering Keywords: deep neural network; long short-term memory; suspended sediment; discharge

Online: 16 December 2022 (08:08:08 CET)

Show abstract| Download PDF| Share