Effect of ground motion on seismic design of low to medium rise infilled moment resisting concrete frame
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Date
2018-06
Authors
Muhammad Amar Firdauz Yazid
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Abstract
Infilled structural frames are widely used across the world including high seismicity
regions. The infills are usually considered as non-structural elements and not included in
the analytical and design procedure. The main objective for this study is to evaluate the
performance 2D moment resisting concrete frame (MRCF) with and without infill walls
under seismic provision. Non-linear static and dynamic analysis had been used in this
study to evaluate the performance of low-rise to medium rise reinforced concrete
building. Three different number of storey, N: 3, 6, and 9 with different infill
configuration were used as the structural models. SAP200 software was used to analyse
all the structural models. From the analysis conducted, pushover analysis shown that nine
storey infilled frame has highest base shear force compared to three and six storey for
both infilled and bare frame. Non-linear dynamic analysis has been conducted by
employing five single ground motion data to represent a real seismic ground motion.
Displacement curve from the analysis shown that the presence of infills reduce the
displacement of structural frame. Inter-storey drift ratio (IDR) shown that deformation
usually occurs at lower storey as it has higher percentage of IDR.