防屈曲支撑在某常规岛主厂房中的应用研究
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摘要
防屈曲支撑(BRB)作为一种金属屈服耗能支撑构件,克服了普通支撑受压屈曲的缺点,在地震中具有良好的耗能能力和延性。为了研究防屈曲支撑在常规岛主厂房中的耗能减震效果,本文采用非线性有限元分析软件ABAQUS对设置防屈曲支撑的某常规岛主厂房结构进行了罕遇地震作用下的有限元分析,对比了不同地震波作用下的结构弹塑性分析结果。结果表明:设置防屈曲支撑以后,结构的抗震性能显著提高,本研究为防屈曲支撑在常规岛主厂房结构中的应用提供了成功的工程案例,其设计思路可以为常规岛主厂房结构的减震提供有益的借鉴和参考。
As a kind of energy dissipation brace members by the yielding of mental,Buckling Restrained Brace( BRB) can overcome shortcomings of the common braces' compression buckling,which has good energy dissipation capacity and ductility under earthquake.To study the BRB effect in the main machine hall,the nonlinear finite element analysis software ABAQUS is adopted to analyze the seismic performance of a main machine hall in conventional island with Buckling Restrained Braces under rare earthquake,and the elastic-plastic analysis results under the action of different seismic wave are compared. The results show the structural seismic performance has been improved significantly,a successful engineering case is provided for the application of BRB in the damping design of main machine hall structures.
As a kind of energy dissipation brace members by the yielding of mental,Buckling Restrained Brace( BRB) can overcome shortcomings of the common braces' compression buckling,which has good energy dissipation capacity and ductility under earthquake.To study the BRB effect in the main machine hall,the nonlinear finite element analysis software ABAQUS is adopted to analyze the seismic performance of a main machine hall in conventional island with Buckling Restrained Braces under rare earthquake,and the elastic-plastic analysis results under the action of different seismic wave are compared. The results show the structural seismic performance has been improved significantly,a successful engineering case is provided for the application of BRB in the damping design of main machine hall structures.
引文
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[12]黄忠海,廖耘,李盛勇,等.广州珠江新城东塔罕遇地震作用弹塑性分析[J].建筑结构学报,2012,33(11):82~90Huang Z H,Liao Y,Li S Y,et al.Elasto-plastic Timehistory Analysis of the Guangzhou East Tower under Rare Earthquakes[J].Journal of Building Structures,2012,33(11):82~90(in Chinese)
[2]吕西林,蒋欢军.复杂高层建筑抗震与消能减震研究进展[J].建筑结构学报,2010,31(6):52~61Lu Xi-lin,Jiang Huan-jun.Research Progress of Earthquake Resistance and Energy Dissipation of Complex Tall Buildings[J].Journal of Building Structures,2010,31(6):52~61(in Chinese)
[3]李宏男,霍林生.结构多维减震控制[M].北京:科学出版社,2008,3:233Li Hong-nan,Huo Lin-sheng.Structure Multidimensional Vibration Control[M].Beijing:The Science Press,2008,3:233(in Chinese)
[4]Wakabayashi M.Experimental Study of Elastic-plastic Properties of Precast Concrete Wall Panels with Built-in in Sulating Braces[C]//Proceedings of the Summaries of Technical Papers of Annual Meeting,Tokyo,1973
[5]周云,唐荣,钟根全,等.防屈曲耗能支撑研究与应用的新进展[J].防灾减灾工程学报,2012,32(4):393~406Zhou Yun,Tang Rong,Zhong Gen-quan,et al.State-ofthe-art and State-of-the-practice of Buckling-restrained Brace[J].Journal of Disaster Prevention and Mitigation Engineering,2012,32(4):393~406(in Chinese)
[6]Kelly J M,Skinner R I,Heine A J.Mechanisms of Energy Absorption in special Devices for Use in Earthquake Resistant Structures[J].Bullet in of New Zealand National Society for Earthquake Engineering1972,5(3):63~88
[7]Mansoori M R,Moghadam A S.Using Viscous Damper Distribution to Reduce Multiple Seismic Responses of Asymmetric Structures[J].Journal of Constructional Steel Research,2009,65:2176~2185
[8]GB50011-2010,建筑抗震设计规范[S]GB50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
[9]周建龙,汪大绥,姜文伟,等.防屈曲耗能支撑在世博中心工程中的应用研究[J].建筑结构,2009,39(5):30~31Zhou Jian-long,Wang Da-sui,Jiang Wen-wei,et al.Research on Application of Buckling Res Trained Braces in the EXPO Center[J].Building Structure,2009,39(5):30~31(in Chinese)
[10]郭彩娟,何斌,刘成清,等.某博物馆结构防屈曲支撑减震分析[J].土木工程学报,2013,46(S1):38~44Guo Cai-juan,He Bin,Liu Cheng-qing,et al.The Damping Analysis of A Museum Structure with Buckling Restrained Braces[J].China Civil Engineering Jounral,2013,46(S1):38~44(in Chinese)
[11]Zhou Y,Lu X L,Weng D G,etal.A Practical Design for Reinforced Concrete Structures with Viscons Dampers[J].Engineering Structures,2012,(39):187~198.
[12]黄忠海,廖耘,李盛勇,等.广州珠江新城东塔罕遇地震作用弹塑性分析[J].建筑结构学报,2012,33(11):82~90Huang Z H,Liao Y,Li S Y,et al.Elasto-plastic Timehistory Analysis of the Guangzhou East Tower under Rare Earthquakes[J].Journal of Building Structures,2012,33(11):82~90(in Chinese)
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