- 摘 要
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（清華大學建筑設計研究院有限公司， 北京 100084）
［摘要］兩側(cè)塔樓之間有索網(wǎng)幕墻的連體結(jié)構(gòu)的連體桁架需滿足兩側(cè)塔樓變形協(xié)調(diào)的剛度要求，并為預應力索網(wǎng)提供有效支承。連體桁架水平剛度對整體結(jié)構(gòu)動力特性的影響較豎向剛度更顯著。模態(tài)和反應譜分析表明，整體結(jié)構(gòu)地震響應分析可不考慮單層預應力索網(wǎng)的作用；需計算單層預應力索網(wǎng)在罕遇地震作用下的變形和內(nèi)力，以保證預應力索不出現(xiàn)拉斷或松弛的失效狀況。
［關鍵詞］連體結(jié)構(gòu)； 連體桁架； 動力特性； 單層預應力索網(wǎng)； 地震響應； 時程分析
中圖分類號：TU318文獻標識碼：A文章編號：1002-848X(2018)24-0041-06
Structural scheme selection of connected truss and seismic response analysis of curtain wall cable net in connected structure
Cui Juan, Yang Xiao, Jiang Bingli, Wang Li, Shen Minjie
(Architectural Design and Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China)
Abstract:The connected truss of the connected structure with cable net curtains between the towers on both sides needs to meet the rigidity requirements of the deformation coordination of the towers on both sides, and provides effective support for the prestressed cable net. The horizontal stiffness of the connected truss has a more significant effect on the dynamic characteristics of the overall structure than the vertical stiffness. The modal and response spectrum analyses show that the seismic response analysis of the whole structure can neglect the role of the single-layer prestressed cable net; the deformation and internal force of the single-layer prestressed cable net under the rare earthquake should be calculated to ensure that the prestressed cable does not appear breakage or slack failure condition.
Keywords:connected structure; connected truss; dynamic characteristic; single-layer prestressed cable net; seismic response; time-history analysis
作者簡介：崔娟，碩士，工程師，一級注冊結(jié)構(gòu)工程師，Email：adstruc@vip.163.com。
