Seismic Behavior of Tall Buildings with End Shear Walls and Opening
نویسندگان
1 Assistant Professor of Structural Engineering Seismic Geotechnical and High Performance Concrete Research Center, Department of Civil Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran
2 Ph.D.Candidate of Structural Engineering, Seismic Geotechnical and High Performance Concrete Research Center, Department of Civil Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran
3 Professor of Structural Engineering, Faculty of Civil Engineering, Semnan University, Iran
doi
10.48303/jsee.2023.1973892.1036چکیده
Today, many strategies have been proposed to improve the behavior of tall buildings under seismic load. Drifts, torsion, and structure period are essential parameters affecting high-rise building behavior. In addition, the stress concentration at the end wing of shear walls is another critical subject in high-rise buildings, which was resolved using end shear walls. The end shear wall connects the end of two shear walls in high-rise buildings without opening. In this study, a new end shear wall connects the end of shear walls in a high-rise building with regular openings (ESWO). Therefore, two 30-story RC buildings with and without end shear walls with opening were modeled by a nonlinear time history analysis under seismic load. The drift was decreased by 49% in a 30-story building with a new end shear wall. Moreover, the residual displacement of 30-story buildings with end shear walls with opening was decreased by 67%.. The time history nonlinear analysis investigation indicated that the end shear walls with opening declined the maximum displacement by 62% in tall buildings by Open Sees software. The reduction of the standard deviation of data increased the confinement in 30-story drifts in the X and Y directions by end shear walls with opening. Based on the results, the performance of the end shear walls with the opening was appropriate in the seismic behavior of high-rise buildings.
