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

［摘要］對某站房結(jié)構(gòu)進行了罕遇地震下的抗震性能分析。屋面和拱支撐的位移較大，屈服桿件集中在屋面，并且夾層結(jié)構(gòu)層間位移超限，不滿足抗震設(shè)防目標(biāo)的要求。隨后采用粘滯阻尼器進行了減震分析。對替換屋面桿件為阻尼器、在拱上支撐之間設(shè)置阻尼器以及兩者相組合的方式進行了比較。組合方式的減震效果最優(yōu)。對25m夾層采用在端部柱間設(shè)置阻尼支撐的方式，層間位移減小顯著，滿足了抗震設(shè)防目標(biāo)的要求。

［關(guān)鍵詞］抗震性能；層間位移；粘滯阻尼器；減震

Seismic behavior and vibration reduction analysis with viscous dampers of a station hall

Zhu Limin, Qian Jihong, Zhang Weiyue(Institute of Building Structures, China Academy of Building Research, Beijing 100013, China)

Abstract:The seismic behavior of a station hall under rare earthquake is analyzed. The results indicate that the roof and arch have large displacement, yield members are focused on the roof, and inter-story displacement of sandwich structure exceeds the limit, so the seismic fortification criterion can not be satisfied. Then vibration reduction analysis with viscous dampers is carried out. Replacing roof members by dampers, setting dampers between bracings on the arch and both the combination are used respectively, the comparison shows that vibration reduction effect of the combined manner is optimal to the roof and arch. Damping bracings are also fixed between the end columns in 25m sandwich, which decreases the inter-story displacement obviously, and the seismic fortification criterion can be satisfied.

Keywords:seismic behavior; inter-story displacement; viscous dampers; vibration reduction

作者簡介：朱禮敏，博士，工程師。

參考文獻(xiàn)

［1］鐘善桐.鋼管混凝土結(jié)構(gòu)［Ｍ］.北京：清華大學(xué)出版社，2003

［2］湯昱川，張玉良，張銅生.粘滯阻尼器減震結(jié)構(gòu)的非線性動力分析［Ｊ］.工程力學(xué)，2004，21（1）.