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Seismic Response of Multistory Building Structures With Flexible Floor Diaphragms

by Dong-Guen Lee, Korea Advanced Inst of Science &, Technology, Republic of Korea,
Sung-Kwon Moon, Korea Advanced Inst of Science &, Technology, Republic of Korea,



Document Type: Proceeding Paper

Part of: Structural Design, Analysis and Testing

Abstract:

An efficient model for three-dimensional analysis of multistory structures with flexible floor diaphragms is proposed in this paper. Three-dimensional analysis of a building structure using a finite element model requires tedious input data preparation, longer computation time, and larger computer memory. The model proposed in this study is developed by assembling a series of two-dimensional resisting systems and is considered to overcome the shortcomings of a three-dimensional finite element model without deteriorating the accuracy of results. Static and dynamic analysis results obtained using the proposed model are in excellent agreement to those obtained using three-dimensional finite element models in terms of displacements, periods, and mode shapes. Effects of floor diaphragm flexibility on seismic response of multistory building structures are investigated.

Subject Headings: Finite element method | Three-dimensional models | Three-dimensional analysis | Structural analysis | Floors | Earthquake resistant structures | Diaphragms (structural)

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