Evaluation of Reinforced Concrete Tall Buildings with End Shear Walls Subjected to Sequences Far from the Fault

Document Type : Article

Authors

1 Seismic Geotechnical and High Performance Concrete Research Center, Department of Civil Engineering, Semnan Branch, Islamic Azad university, Semnan, Iran

2 Member of Center of Excellence for Engineering and Management of Civil Infrastructures, University of Tehran, Iran, Faculty of Civil Engineering, Semnan University, Iran

Abstract

Many parameters affect the behavior of tall buildings under seismic loads, some of which are the main shock-after shock records and using some lateral load resistance systems in reinforced concrete tall buildings. End shear walls are a kind of shear walls, connecting their end in tall buildings. This study was conducted on two 30-story reinforced concrete structures, which were subjected to sequences of far fault records and analyzed by the nonlinear time history analysis. The results indicated a 51% decrease in maximum inter-story drift in 30 stories with end shear walls under sequence records. The normal Q-Q plots (quantile-quantile plot) presented approximately 20% reduction in the excepted normal domain in X and Y directions, respectively, in 30 stories with end shear walls. The kurtosis coefficient declined by 61 and 92% in the X and Y directions in 30-story structure end shear walls, respectively. Therefore, the end shear wall increased the confinement effects by decreasing the dispersion data of inter-story drift and improving seismic behavior.

Keywords

Scientia Iranica

Articles in Press, Accepted Manuscript
Available Online from 25 February 2023

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