Title: PERFORMANCE OF SHEAR WALL BUILDING DURING SEISMIC EXCITATIONS
Abstract: Design of civil engineering structures is typically based on prescriptive methods of building codes. Normally, loads on these structures are low and result in elastic structural behaviour. However, under a strong seismic event, a structure may actually be subjected to forces beyond its elastic limit. Earthquakes demonstrate vulnerability of various inadequate structures, every time they occur. The lessons taught from the aftermath of earthquakes and the research works being carried out in laboratories give better understanding about the performance of the structure and their components. An introduction of flanged shear wall represents a structurally efficient solution to stiffen a building structural system because the main function of a flanged shear wall is to increase the rigidity for lateral load resistance. Shear walls in medium and high rise reinforced concrete buildings for the sake of interaction with the lateral forces, used by many of engineers, however past studies on the behaviour and situation of shear wall indicated that shear walls with flange has better behaviour. And this is due to interaction of flange and wall web. The present study was carried out in a 25 story shear wall building, located in seismic zone 3.Two models was considered for the study, first one was the building with L type shear wall and the second one was with core type shear wall. Three time history analysis were conducted and from the time history analysis, the maximum displacement obtained for building with for building with L type shear wall than the building with core type shear wall. i.e storey drift is reduced when shear wall is provided as core type. To analyse the wall-frame interaction behaviour, lateral forces obtained from the equivalent static analysis were applied on the nodes of exterior faces. The study shows that as the height of building increases, shear wall absorb more lateral force than the frame.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 4
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