Empirical formulae for Estimation Fundamenatl Period of Steel Space Frames
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
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Title |
Empirical formulae for Estimation Fundamenatl Period of Steel Space Frames
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Creator |
Cinitha, A.
Rama Raju, K. Nagesh R. Iyer Lakshmanan, N. |
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Subject |
steel space frames
Empirical formulae Reiforced concrete` Vibration Buildings |
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Description |
The fundamental periods of buildings are essential to calculate the design base shear and lateral force under seismic actions. Most seismic codes specify empirical formulae to estimate the fundamental vibration period of buildings. These empirical formulae are used for both
low- and medium- rise buildings. These formulae depend on the building materials (steel,
reinforced concrete etc), building types (frame, shear wall etc) and overall dimensions of the buildings. In this paper, for finding the fundamental natural period of steel moment resisting frames, numerical studies are carried out, and by regression analysis, empirical formulae are
derived for low- and medium- rise buildings. The numerical studies carried includes, the
influence of the plan and bay dimensions, normalized stiffness and height of storeys on
fundamental frequency of the moment resisting frames.
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Date |
2009
2009 2008 |
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Type |
Conference paper
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Identifier |
Proceedings of the Sixth Structural Engineering Convention, SEC 2008, 18-20 December 2008, p.445-454. Jointly Organised by Structural Engineering Research Centre, Indian Institute of Technology, Anna university, Chennai.
http://14.139.176.62:8080/jspui/handle/123456789/271 |
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Language |
en
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