- 摘 要
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聶建國1,田淑明1,2(1 清華大學(xué)土木工程系土木工程安全與耐久性教育部重點實驗室,北京 100084;2 中冶京誠工程技術(shù)有限公司,北京 100053)
[摘要]框架-混凝土核心筒混合結(jié)構(gòu)在我國已得到廣泛應(yīng)用,但對其水平位移限值的研究尚不完善,還存在諸多問題。通過理論分析和有限元計算,討論了高寬比對結(jié)構(gòu)變形的影響,明確了高寬比與位移限值間的相關(guān)性。通過四個算例的位移特性和安全性的比較,認(rèn)為相對層間位移角和頂點位移角可以作為層間位移角的有效補充,而且當(dāng)外圍框架類型不同時,宜視位移指標(biāo)不同給出相應(yīng)的位移限值。
[關(guān)鍵詞]框架-混凝土核心筒混合結(jié)構(gòu);高寬比;水平位移限值
中圖分類號:TU375文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2012)04-0028-06
Discussions about drift limit of frame-concrete corewall hybrid structures
Nie Jianguo1, Tian Shuming1,2(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2 MCC Capital Engineering & Research Incorporation Limited, Beijing 100053, China )
Abstract:Frame-concrete corewall hybrid structure is widely used in China, but research on horizontal drift limit is not fully addressed. Based on theoretical analysis and finite element analysis, influence of height-width ratio on structural deformation was discussed and the relationship between height-width ratio and drift limit was illustrated. Furthermore, drift and safety of four frame-concrete corewall hybrid structures were compared. As a result, relative inter-story drift and roof drift can act as effective supplements of inter-story total drift, and drift limit should be determined according to different drift index for structures with different peri-frame type.
Keywords:frame-concrete corewall hybrid structure; height-width ratio; horizontal drift limit
*國家自然科學(xué)基金重點項目(50438020),長江學(xué)者和創(chuàng)新團(tuán)隊發(fā)展計劃資助項目(IRT00736)。
作者簡介:聶建國,教授,博士生導(dǎo)師,Email:niejg@mail.tsinghua.edu.cn。
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