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輕質(zhì)復合板裝配式結(jié)構振動臺試驗研究*
王滿生1,李小午1,張寧1,孟憲忠2
摘 要

(1 北京市住房和城鄉(xiāng)建設科學技術研究所, 北京 100021;

2 北京太空板業(yè)股份有限公司, 北京 100084)

[摘要]通過足尺模型的振動臺試驗,研究輕質(zhì)復合板(太空板)裝配式結(jié)構模型的抗震性能及損傷特征,根據(jù)其節(jié)點連接特點和傳力特性,結(jié)合北京地區(qū)8度抗震設防要求,分別設計了33個工況,并對相應工況進行試驗分析。結(jié)果表明,在經(jīng)歷了8度小震、中震、大震后結(jié)構出現(xiàn)一定的損傷,但未出現(xiàn)明顯扭轉(zhuǎn);整體結(jié)構的最大層間位移角能滿足規(guī)范要求,同時也能滿足“小震不壞、中震可修、大震不倒”的抗震性能目標要求。分析結(jié)果可為低層輕質(zhì)復合結(jié)構的推廣應用提供技術依據(jù)。

[關鍵詞]輕質(zhì)復合結(jié)構; 振動臺試驗; 足尺模型; 自振頻率; 滯回曲線

中圖分類號:TU375-4文獻標識碼:A文章編號:1002-848X(2017)10-0017-05

 

Shaking table test study on lightweight composite panel fabricated structure

Wang Mansheng1, Li Xiaowu1, Zhang Ning1, Men Xianzhong2

(1 Beijing Science & Technology Institute of Housing and Urban-Rural Development, Beijing 100021, China; 2 Beijing Taikong Panel Industry Co., Ltd., Beijing 100084, China)

Abstract:The earthquake resistant behaviors and damage characteristics of the lightweight composite panel (space board) fabricated structure model were studied  through shaking table tests on the full-scale model. According to the joint connection characteristics and force distribution characteristics, 33 working conditions based on the 8 degree of seismic precautionary intensity in Beijing were designed, and test analyses were carried out for corresponding working conditions. Results show that there is certain damage in the structure  under frequent earthquake, fortification earthquake and rare earthquake of 8 degree of seismic precautionary intensity, but there is no obvious torsion. The maximum interlayer displacement angle of the overall structure can meet code requirements, and the overall structure can meet performance-based seismic design objectives of "not damaged under frequent earthquake, repairable under fortification earthquake and not collapsing under rare earthquake". Analysis results can provide technical basis for widely application of low-rise lightweight composite structure.

Keywords:lightweight composite structure; shaking table test; full-scale model; natural frequency of vibration; hysteresis curve

 

*北京市科委重大課題(D141100002614002)。

 

作者簡介:王滿生,博士,教授級高級工程師,Email:moonwms@126.com。

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