A Comparative study of multistorey building structure for seismic and wind loads

Kamath, Kiran and Kalra, Shivali and Raj, Abhilekh and Faroque, Firoz A (2012) A Comparative study of multistorey building structure for seismic and wind loads. In: National Conference on contemporary Civil Engineering Research and Practices, April 20-21, M.I.T, Manipal,.

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Abstract

Oftentimes, for preliminary design at the start of the project, the designer needs to know which loading type will control the design of the building. This knowledge will provide valuable insight into sizing of the lateral load resisting system and give the designer a feel for the controlling factors in sizing and detailing the system. In this paper, an analysis has been done by varying the storey height of a building, keeping the base dimensions constant, to find the height at which the design for wind load starts governing the design for earthquake load, using the software ETABS. For earthquake loads, both static and dynamic multi model analysis has been done. The analysis for the wind and seismic loads has been carried out along the principle axis. Thereafter, the results have been analysed with respect to base shear and top storey drifts, due to earthquake load (EQ) and wind load (WL). From the above mentioned analysis, we can infer that the design for wind load will start governing the design for earthquake load when the ratio of height to width of the building is around 6 in the static analysis, and around 1.5 in the dynamic earthquake analysis.

Item Type: Conference or Workshop Item (Paper)
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 01 Apr 2013 07:40
Last Modified: 01 Apr 2013 07:45
URI: http://eprints.manipal.edu/id/eprint/79395

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