Seismic Analysis of Multistorey Building on Sloping Ground
Yugandhara S. Sontakke1, V. G. Sayagavi2, P. J. Salunke3, N. G. Gore4
1Miss Yugandhara S. Sontakke, (PG Student) Department of Civil Engineering, Mahatma Gandhi Mission’s College of Engineering and Technology, Navi Mumbai, (Maharashtra), India.
2V.G. Sayagavi, Professor, Department of Civil Engineering, Mahatma Gandhi Mission’s College of Engineering and Technology, Navi Mumbai, (Maharashtra), India.
3P.J. Salunke, Professor, Department of Civil Engineering, Mahatma Gandhi Mission’s College of Engineering and Technology, Navi Mumbai, (Maharashtra), India.
4N.G. Gore, Professor, Department of Civil Engineering, Mahatma Gandhi Mission’s College of Engineering and Technology, Navi Mumbai, (Maharashtra), India.
Manuscript received on November 03, 2015. | Revised Manuscript received on November 08, 2015. | Manuscript published on November 30, 2015. | PP: 6-10 | Volume-2 Issue-12, November 2015. | Retrieval Number: L03512121215
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In most of the northern earthquake prone hilly part of the India, due to local topography constraint engineered construction is resulting in the adoption of either a step back or step back & set back configuration as a structural form for buildings. The adopted form is generally irregular, torsionally coupled & hence, susceptible to serve damage when affected by earthquake ground motion. Such buildings have mass & stiffness varying along the vertical & horizontal planes, resulting the centre of mass & centre of rigidity do not coincide on various floors, hence they demand torsional analysis, in addition to lateral forces under the action of earthquakes. In this paper seismic analysis performed on 48 RC buildings with three different configurations like, Step back building, Step back Set back building and Set back building are presented. 3 –D response spectrum analysis including torsional effect has been carried out by considering the dynamic response properties i.e. fundamental time period, top storey displacement and, the base shear action induced in columns with reference to the suitability of a building configuration on sloping ground. It is observed that Step back Set back buildings are found to be more suitable on sloping ground.
Keywords: Building, Etab, Response Spectrum Analysis, Seismic, Sloping ground.