Effects of Openings in Shear Wall on Seismic Response of Structures

Finite Element Modeling now a days is an essentital approach in analysisng and simulating civil engineering problem numerically.In this paper at attempt is made to apply the finite element modelling in analysing and exploring the behavior of shear wall with opening under seismis load actions.In modern tall buildings, shear walls are commonly used as a vertical structural element for resisting the lateral loads that may be induced by the effect of wind and earthquakes.Shear walls are generally located at the sides of buildings or arranged in the form of core that houses stairs and lifts.Due to functional requirements such as doors, windows, and other openings, a shear wall in a building contains many openings.The size and location of openings may vary from architectural and functional point of view.In most of the apartment building, size and location of openings in shear wall are made without considering its effect on structural behavior of the building.This study is carried out on 6-story frame-shear wall buildings, using linear elastic analysis with the help of finite element software, ETABS under earthquake loads in equivalent static analysis.The results reveal that stiffness as well as seismic responses of structures is affected by the size of the openings as well as their locations in shear wall.It is also explored that top lateral drift of the system can also be reduced thickening the element in the model around the opening of shear wall.