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Seismic Analysis of RC Building Frames with Different Bracing Systems

Author(s):

Mohammed Ali Khan , KHAJA BANDA NAWAZ COLLEGE OF ENGINEERING, GULBARGA; Prof S. M Hashmi, KHAJA BANDA NAWAZ COLLEGE OF ENGINEERING, GULBARGA; Asst. Prof. Shaik Abdulla, KHAJA BANDA NAWAZ COLLEGE OF ENGINEERING, GULBARGA

Keywords:

Different Bracing Systems, RC Building Frame

Abstract

In multistoried buildings steel braced frames is used in resisting lateral loads. For strengthening or retrofitting seismically inadequate reinforced concrete frame the use of steel bracing is a viable solution for inducing seismic resistance. An analytical study is required to be performed to gain understanding into the behavior of braced frame under earthquake loading. By using steel bracings drift is controlled and collapse is prevented. Steel bracings system occupies less space, easy to erect and has flexibility to design for meeting the required strength and stiffness. In RC buildings strength and stiffness is increased by the use of steel bracings to be safe against natural forces like Earthquake. In this study G+15 building frame is analyzed with different bracing systems under seismic loading in seismic zones III, IV, V. as per IS 1893-2002. E-TABS Software is used for the analysis of the building frame. The results of various bracing systems (X-Bracing, V-Bracing, K-Bracing, Inverted V-Bracing, and Inverted K-Bracing) are compared with bare frame model analysis. The effectiveness of various types of bracing systems is studied in order to control the lateral displacement, storey drift & member forces in the frame. It is found that all the bracing systems control the lateral displacement very effectively. Therefore the object of the study is to determine the degree of effectiveness of different bracing arrangements to increase the sustainability of the RC frame against the effects of Earthquake.

Other Details

Paper ID: IJSRDV4I50762
Published in: Volume : 4, Issue : 5
Publication Date: 01/08/2016
Page(s): 1269-1274

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