Prediction of Corner Columns’ Load Capacity Using Composite Material Analogy

  • A. Ali Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
  • Z. Soomro Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
  • S. Iqbal Department of Civil Engineering, CECOS University, Peshawar, Pakistan
  • N. Bhatti Civil Engineering Department, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
  • A. F. Abro Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
Keywords: composite material analogy, sandwich columns, corner columns, axial loading

Abstract

There are numerous reasons for which concrete has become the most widely used construction material in buildings, one of them being its availability in different types, such as fiber-reinforced, lightweight, high strength, conventional and self-compacting concrete. This advantage is specially realized in high-rise building construction, where common construction practice is to use concretes of different types or strength classes in slabs and columns. Columns in such structures are generally made from concrete which is higher in compressive strength than the one used in floors or slabs. This raises issue of selection of concrete strength that should be used for estimating column capacity. Current paper tries to address this issue by testing nine (09) sandwich column specimens under axial loading. The floor concrete portion of the sandwich column was made of normal strength concrete, whereas column portions from comparatively higher strength concrete. Test results show that aspect ratio (h/b) influences the effective concrete strength of such columns. A previously adopted methodology of composite material analogy with some modifications has been found to predict well the capacity of columns where variation in floor and concrete strength is significant.

Author Biographies

A. Ali, Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Sakrand Road, Nawabshah 67450, Pakistan
Z. Soomro, Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Sakrand Road, Nawabshah 67450, Pakistan
S. Iqbal, Department of Civil Engineering, CECOS University, Peshawar, Pakistan
Department of Civil Engineering, CECOS University, Sector F-5, Phase 6, Hayatabad, Phase-6 Phase 6 Hayatabad, Peshawar, Khyber Pakhtunkhwa, Pakistan
N. Bhatti, Civil Engineering Department, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
Civil Engineering Department, Quaid-e-Awam University of Engineering, Science & Technology, QUEST Campus Arija, Larkana, Pakistan
A. F. Abro, Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Larkana, Pakistan
Department of Civil Engineering, Quaid-e-Awam University of Engineering, Science & Technology, Sakrand Road, Nawabshah 67450, Pakistan

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How to Cite
[1]
A. Ali, Z. Soomro, S. Iqbal, N. Bhatti, and A. F. Abro, “Prediction of Corner Columns’ Load Capacity Using Composite Material Analogy”, Eng. Technol. Appl. Sci. Res., vol. 8, no. 2, pp. 2745-2749, Apr. 2018.
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