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(中國(guó)建筑科學(xué)研究院建筑結(jié)構(gòu)研究所，北京100013)

［提要］對(duì)天津慈海橋摩天輪結(jié)構(gòu)的抗震性能進(jìn)行了分析，采用振型分解反應(yīng)譜法和彈性時(shí)程分析法分別計(jì)算多遇地震下結(jié)構(gòu)的內(nèi)力和變形，從地震波的加速度譜和功率譜兩方面分析了比較結(jié)果，將反應(yīng)譜結(jié)果考慮一增大系數(shù)后進(jìn)行結(jié)構(gòu)校核。采用彈塑性時(shí)程分析法進(jìn)行了罕遇地震作用下的分析。分析結(jié)果表明，結(jié)構(gòu)的變形和強(qiáng)度均滿足要求，抗震性能良好。

［關(guān)鍵詞］摩天輪結(jié)構(gòu)；抗震性能；反應(yīng)譜；時(shí)程分析

Seismic Behavior of Skyscraper Wheel Structure in Tianjin Cihai Bridge/Zhu Limin, Song Tao, Ma Ming (Institute of Building Structures, China Academy of Building Research, Beijing 100013, China)

Abstract:The seismic behavior of the skyscraper wheel structure in Tianjin Cihai bridge is studied. Using mode superposition response spectrum method and elastic time history analysis method, the internal force and deformation of the structure under frequent earthquake are calculated and compared. The comparing results are researched by acceleration spectrum and power spectrum of earthquake waves, and the results of response spectrum considering a magnifying coefficient are applied to check the structure. The elastoplastic time history analysis method is used to calculate rare earthquake action. The results indicate that the deformation and strength of the structure can satisfy requirements, and it has favorable seismic behavior.

Keywords:skyscraper wheel structure; seismic behavior; response spectrum; time history analysis