期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：10
页码：9674
DOI：10.15680/IJIRSET.2015.0410026
出版社：S&S Publications
摘要：Outrigger systems have been efficient in stiffening the structure against lateral loads like wind orearthquakes. So, in order to know more about their effects on the structure and their behaviour under earthquake loads,an overall seismic evaluation and comparison of 30 storey building located in zone 2 with conventional slab systemhaving a central shear wall core with 1 and 2 outrigger levels are demonstrated in this paper. Pushover analysis wasperformed using ETABS 9.7.4 on the models and using the performance parameters like Base force, Displacement,Storey drift, Spectral acceleration and Spectral displacement and relevant conclusions were drawn. The outrigger strutswas placed at 0.25h & 0.5h, 0.25h & 0.75h, 0.25h & 1h, 0.5h & 0.75h, 0.5h & 1h, 0.75h & 1h to check for the mostbeneficial location for the 2 outrigger levels in a structure. Also, the status and location of plastic hinges at theperformance point obtained from static pushover results showed that performance levels for almost all the models werefound to lie in between Life safety to Collapse prevention range.
关键词：Pushover analysis; Outrigger systems; Inter storey drifts; Plastic hinges.
