- 摘 要
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(1 上海天華建筑設(shè)計有限公司, 上海 200235; 2 寧波職業(yè)技術(shù)學(xué)院建筑工程系, 寧波 315800)
[摘要] 某雙塔連體結(jié)構(gòu)中分別采用普通鋼支撐與屈曲約束支撐兩種支撐方式,運用SAP2000軟件分別對兩種支撐方式在大震作用下進行動力彈塑性時程分析;并對計算結(jié)果中的樓層剪力、層間位移角、頂點位移及整體塑性發(fā)展做出分析比較,得出屈曲約束支撐對剛度突變及抗剪承載力突變有一定的控制作用。
[關(guān)鍵詞] 連體結(jié)構(gòu); 鋼支撐; 屈曲約束支撐; 動力彈塑性時程分析
中圖分類號:TU398.2 文獻標識碼:A 文章編號:
作者簡介:軒勇勇,碩士,工程師,Email:dabao5118@163.com。
Application of buckling restraining brace in a connected structure
Xuan Yongyong1, Huang Lili2
(1 Tianhua Architecture Planning & Engineering Limited, Shanghai 200235, China; 2 Department of Construction Engineering, Ningbo Polytechnic, Ningbo 315800, China)
Abstract: The common steel braces and buckling restrained braces were used in a connected double-towers structure. Finite element software SAP2000 was used to carry out dynamic elastic-plastic time-history analysis on two types of braces under the rare earthquake. The results are compared such as the story shear, story drift, top displacement and the overall plastic deformation development. Through calculation, it’s concluded that the buckling restrained braces have some effects in controlling stiffness mutation and story shear mutation.
Keywords: connected structure; steel brace; buckling restrained brace; dynamic elastic-plastic time-history analysis
參考文獻
[1] PRIESTLEY M J N, CALVI G M, KOWALSKY M J, Displacement-based seismic design of structures[M]. Pavia:IUSS Press, 2007.
[3] GB 50011—2010 建筑抗震設(shè)計規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2010.
[4] 楊溥,李英民,賴明. 結(jié)構(gòu)時程分析法輸入地震波的選擇控制指標[J].土木工程學(xué)報,2000,6(33):33-37.
[5] 龍姣香,宮海. TJ型屈曲約束支撐設(shè)計手冊第三版[M].上海:同濟大學(xué)建筑設(shè)計研究院,2011.
[6] 李忠學(xué). 初始幾何缺陷對網(wǎng)殼結(jié)構(gòu)靜、動力穩(wěn)定性承載力的影響[J]. 土木工程學(xué)報, 2002, 35(1), 11-24.