Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Economic and Functional Feasibility of Concrete Encased Composite Columns in Buildings

Version 1 : Received: 29 March 2021 / Approved: 30 March 2021 / Online: 30 March 2021 (10:10:18 CEST)

How to cite: Ahmed, U.; Rashid, A.; Baig, Z. Economic and Functional Feasibility of Concrete Encased Composite Columns in Buildings. Preprints 2021, 2021030724 (doi: 10.20944/preprints202103.0724.v1). Ahmed, U.; Rashid, A.; Baig, Z. Economic and Functional Feasibility of Concrete Encased Composite Columns in Buildings. Preprints 2021, 2021030724 (doi: 10.20944/preprints202103.0724.v1).

Abstract

Modern day construction is widely influenced using concrete-steel composite columns. A lot of research on concrete-steel composite columns is being carried out around the world. The rapid growth in concrete-steel composite construction has widely decreased the use of conventional reinforced cement concrete construction (R.C.C), and the steel construction practices. The concrete-steel composite construction has obtained an extensive receiving around the globe. As Pakistan is a developing country, so, it is relatively a new concept for its construction industry when compared with the developed countries around the globe. Although, the R.C.C construction is suitable and economical for construction of framing systems of low-rise buildings, however, the increased dead load, span restrictions, less stiffness and risky formwork makes it uneconomical and unviable when it comes across the construction of intermediate to high-rise buildings. This research is an effort to learn the cost effectiveness, increased or decreased stiffness, and change on the functionality of the composite construction for intermediate to high-rise buildings constructed in Pakistan. A Base + Ground + 11 storey commercial building is selected for this study. A comparison is made between conventional R.C.C columns structure and concrete-encased composite columns structure. The equivalent static nonlinear analysis is performed using ETABS 2017 software. Although, for Base + Ground + 11 storey building, the construction cost of concrete-encased composite structure is 7.7% more than the conventional R.C.C columns structure, but the concrete-encased composite structure will have 13.013% more constructed floor area. This increased floor area helps to settle the cost difference between the two structures.

Keywords

Composite structures, Concrete-encased composite column, Economic comparison between R.C.C columns and concrete-encased composite columns, Modeling of composite columns.

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