INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016
open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15
seismic analysis of vertically geometric irregular structures
Authors Name:
Prashanth Kumar N
, Dr.Y.M.Manjunath
Unique Id:
IJSDR1805075
Published In:
Volume 3 Issue 5, May-2018
Abstract:
Due to the advancement in construction, materials and non-availability of land there is a demand of constructing multi storey structures in the society. In multistory structures different types of loads are acting in that more dangerous is earthquake which shakes the surface of ground and releases the energy in the form of seismic waves. The forces caused by the earthquakes are very high and also they are random in nature so we cannot predict them, hence proper care should be taken in the design of multistory structures so that the lateral load resisting system should be well enough to withstand the forces coming due to the earthquakes. In this study the vertical geometric irregular RC buildings of 15 storey are studied for seismic performance. Here five buildings, one regular and four irregular buildings are considered with geometric irregularity by considering the IS 1893 codal provisions and analysis is done by ETBAS 2016 version using three different seismic analysis methods (linear static, response spectrum and time history method) The analysis is done. Bhuj time history is used for time history method. The analysis is done according IS 1893-2016(part 1). Results shows that linear static method gives higher results in terms of storey displacement, base shear, story drift compared to response spectrum. This study also shows that the stiffness is important parameter in seismic analysis in response spectrum and time history method. It is concluded that geometric irregular buildings are more vulnerable to earthquakes and proper care should be taken in design of these buildings.
Keywords:
Geometric irregularity, response spectrum, time history, stiffness
Cite Article:
"seismic analysis of vertically geometric irregular structures", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.3, Issue 5, page no.510 - 516, May-2018, Available :http://www.ijsdr.org/papers/IJSDR1805075.pdf
Downloads:
000336256
Publication Details:
Published Paper ID: IJSDR1805075
Registration ID:180301
Published In: Volume 3 Issue 5, May-2018
DOI (Digital Object Identifier):
Page No: 510 - 516
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631
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