The impact of shear wall location on the seismic response of RC frame buildings resting on sloping ground

Abstract

It is observed during the past earthquakes, buildings in hilly regions have experienced high degree of damage leading to collapse though they have been designed for safety of the occupants against natural hazards. Hence, while adopting practice of multistory buildings in these hilly and seismically active areas, utmost care should be taken for making these buildings earthquake resistant. For the buildings on sloping ground, the height of columns below plinth level is not same which affects the performance of building during earthquake. Hence to improve the seismic performance of building shear walls play very important role.It is very necessary to determine the most effective location of shear walls. Shear wall arrangement must be accurate, because if not, it will cause negative effect instead. This paper is aimed at predicting the effect of positioning RC shear wall of different shape on the structural response of RC building resting on sloping ground. Eight models have been prepared considering earth pressure and without considering earth pressure. The displacement of building is to be determined by nonlinear static pushover analysis. For the purpose of pushover analysis and response spectrum analysis finite element-based software SAP 2000 has been utilized.

Effect of positioning of shear walls in a multi-storied building on response to earthquake

“…An application of tension-rod displacement-restraint bracing to prevent story drift amplification in tall steel moment frames, where the increment of column axial force by the addition of bracing is reduced dramatically. Such a method has been studied to reduce the inter-story drift by using hysteretic dampers [1], rocking cores [2], self-cantering column bases [3], bracing [4], shear wall [5][6][7][8][9][10][11][12][13][14][15][16], etc. Shear walls are the most common means of lateral displacement and drift reduction.…”

The effective placing of Shear Wall for Seismic Resistance of G+5 Story building on sloping Ground

“…Buildings on the sloped ground are much more different from buildings that are in plain areas.Generally, they are vertically andhorizontally irregular and unsymmetrical. These buildings which are located in hilly areas are more prone to severe damage than buildings resting in plain areas [2].as a fact hilly areas are more under the seismic zone construction of building in hilly area is most vulnerable when subjected to earthquake. The required earthquake resistance capacity can be provided with essential stiffness, strength, and behaviour.Therefore, the installation of an adequate shear wall in proper lace is the best remedy for that requirement.…”