部分柱顶滑移钢筋混凝土框剪结构的地震扭转反应分析

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Abstract Based on extensive numerical analyses, torsional response of the frameshear wall structures with partial columns sliding at upper ends (FSPCS), due to accidental eccentricity and induced by earthquakes, have been investigated. Influences of the structural period ratio and lengthtowidth ratio on such response have been revealed. A comparison between the torsional response of the FSPCS and that of the conventional frameshear wall structure (CFSWS) was presented. It can be found that: ①when the accidental eccentricity is taken into account, the elastic torsional response of the FSPCS is less than that of the CFSWS, and the influences of the structural period ratio and lengthtowidth ratio on the FSPCS are almost the same as those on the CFSWS; ②with the increasing of the structural period ratio, the enhancing range of the top storey’s maximum horizontal displacement of the FSPCS under major earthquake generally increases, but in most cases is less than that of the CFSWS. Meanwhile the enhancing range related to the FSPCS under major earthquake is lower than that under minor earthquake; ③with the increasing of the lengthtowidth ratio, the enhancing range of the top storey’s maximum horizontal displacement of the FSPCS under major earthquake generally exhibits a trend of increasing first and then decreasing later, and the enhancing is significant when the lengthtowidth ratio ranges from 1 to 2.

Key words： reinforced concrete frame-shear wall structure sliding at column upper end accidental eccentricity;

Received: 21 November 2016 Published: 15 April 2018

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	LV Wenlong 1
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	WU Bo
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Cite this article:

LV Wenlong 1,2,WU Bo, et al. Analysis of torsional response of RC frame shear wall structures with partial columns sliding at upper ends under earthquakes[J]. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(8): 132-140.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2018/V37/I8/132

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