seismic analysis of vertically geometric irregular structures
Prashanth Kumar N
, Dr.Y.M.Manjunath
Geometric irregularity, response spectrum, time history, stiffness
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.
"seismic analysis of vertically geometric irregular structures", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.3, Issue 5, page no.510 - 516, May-2018, Available :https://ijsdr.org/papers/IJSDR1805075.pdf
Volume 3
Issue 5,
May-2018
Pages : 510 - 516
Paper Reg. ID: IJSDR_180301
Published Paper Id: IJSDR1805075
Downloads: 000347451
Research Area: Engineering
Country: mysore, karnataka, India
ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publisher: IJSDR(IJ Publication) Janvi Wave
