2007•Transactions of Shenyang Ligong UniversityRequires access

Study on Anti-seismic Design for Long-span Spatial Structures Based on Mode Superposition Response Spectrum Method

Huang Xin

Abstract

The expression of generalized modal participation mass is derived for spatial structures and the mass participation factor is defined as the percentage of modal participation mass to the total mass of the structure system.The anti-seismic design of Laoshan Cycling Gymnasium for Beijing 2008 Olympic Games is taken as a case study to prove that the number of vibration modes needed to ensure the accuracy of mode superposition response spectrum analysis for long-span spatial structures can be determined based on this mass participation factor.

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Key concepts: Superposition principle, Response spectrum, Span (engineering), Structural engineering, Mode (computer interface), Modal, Beijing, Vibration