玻璃纤维加固梁柱结构抗连续倒塌性能数值分析
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摘要
根据已有试验结果,采用有限元程序软件MSC.Marc,对不同钢筋构造形式和采用玻璃纤维增强材料(GFRP)加固的钢筋混凝土梁柱结构进行了数值分析,研究了其抗连续倒塌性能.分析结果与试验结果吻合较好,表明此分析方法对于加固混凝土梁柱结构抗连续倒塌问题的研究是实用有效的.同时,通过该研究结果,证明了采用GFRP加固可以提高框架结构的抗连续倒塌性能.
Based on the experimental results of the progressive collapse behavior of beam-column structures, which had different structural details or were strengthened with different measures by glass fiber reinforced polymer(GFRP)sheets,numerical analysis on the progressive collapse behavior of reinforced concrete beam-column structures was implemented by using commercial finite element software MSC.Marc.The calculated results agree well with the test ones,and the simulation method is proved to be effective and practical.This paper illustrates that the progressive collapse resistance of the reinforced concrete structures can be enhanced by the GFRP sheet strengthening.
Based on the experimental results of the progressive collapse behavior of beam-column structures, which had different structural details or were strengthened with different measures by glass fiber reinforced polymer(GFRP)sheets,numerical analysis on the progressive collapse behavior of reinforced concrete beam-column structures was implemented by using commercial finite element software MSC.Marc.The calculated results agree well with the test ones,and the simulation method is proved to be effective and practical.This paper illustrates that the progressive collapse resistance of the reinforced concrete structures can be enhanced by the GFRP sheet strengthening.
引文
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[2]Bazant Z P,Zhou Y.Why did the World Trade Center collapse?—simple analysis[J].Journal of Engineering Mechanics,2002,128(1):2.
[3]张树传,谢宜人,肖伟,等.从汶川地震震害谈建筑结构抗连续倒塌设计方法[J].福建建筑,2009(10):82.ZHANG Shuchuan,XIE Yiren,XIAO Wei,et al.Discuss the design method to resist progressive collapse of building structures base on the earthquake disasters of Wenchuan earthquake[J].Fujian Architecture&Construction,2009(10):82.
[4]Orton S,Jirsa J O,Bayrak O.Carbon fiber-reinforced polymer for continuity in existing reinforced concrete buildings vulnerable to collapse[J].ACI Structural Journal,2009,106(5):608.
[5]鲍育明,赵艳秋.碳纤维布加固钢筋混凝土构件抗爆性能研究综述[J].建筑科技,2006,37(6):428.BAO Yuming,ZHAO Yanqiu.Study on blast resistant behavior of reinforced concrete component with CFS[J].Architecture Technology,2006,37(6):428.
[6]冯鹏,施凯捷,秦卫红,等.GFRP加固RC梁柱结构抗连续倒塌试验[J].工业建筑,2013,43(S1):64.FENG Peng,SHI Kaijie,QIN Weihong,et al.Experimental study on progressive collapse of GFRP strengthened RC beamcolumn structures[J].Industrial Construction,2013,43(S1):64.
[7]李易,陆新征,叶列平,等.基于Pushdown分析的RC框架抗连续倒塌承载力研究[J].沈阳建筑大学学报:自然科学版,2011,27(1):10.LI Yi,LU Xinzheng,YE Lieping,et al.Study on progressivecollapse resistance capacity of RC frame structures based on pushdown analysis[J].Journal of Shenyang Jianzhu University:Natural Science,2011,27(1):10.
[8]陈肇元,钱稼茹.建筑与工程结构抗倒塌分析与设计[M].北京:中国建筑工业出版社,2010.CHEN Zhaoyuan,QIAN Jiaru.Collapse resistant analysis anddesign of architectural and engineering structures[M].Beijing:China Architecture&Building Press,2010.
[9]卢啸,陆新征,张劲泉,等.某石拱桥连续倒塌模拟及构件重要性评价[J].兰州交通大学学报.2010,29(6):25.LU Xiao,LU Xinzheng,ZHANG Jinquan,et al.Progressive collapse simulation and components importance evaluation of a stone arch bridge[J].Journal of Lanzhou Jiaotong University,2010,29(6):25.
[10]陈火红,杨剑,薛小香,等.新编Marc有限元实例教程[M].北京:机械工业出版社,2007.CHEN Huohong,YANG Jian,XUE Xiaoxiang,et al.New marc finite element instance tutorial[M].Beijing:China Machine Press,2007.
[11]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2005.JIANG Jianjing,LU Xinzheng,YE Lieping.Finite element analysis of concrete structures[M].Beijing:Tsinghua University Press,2005.
[12]梁兴文,叶艳霞.混凝土结构非线性分析[M].北京:中国建筑工业出版社,2007.LIANG Xingwen,YE Yanxia.Nonlinear analysis of concrete structures[M].Beijing:China Architecture&Building Press,2007.
[13]陆新征,叶列平,缪志伟.建筑抗震弹塑性分析——原理、模型与在ABAQUS,MSC.Marc和SAP2000上的实践[M].北京:中国建筑工业出版社,2009.LU Xinzheng,YE Lieping,MIAO Zhiwei.Elasto-plastic ananlysis of buildings against earthquake—theory,model and implementation on ABAQUS,MSC.MARC and SAP2000[M].Beijing:China Architecture&Building Press,2009.
[14]汪训流,陆新征,叶列平.往复荷载下钢筋混凝土柱受力性能的数值模拟[J].工程力学,2007,24(12):76.WANG Xunliu,LU Xinzheng,YE Lieping.Numerical simulation for the hysteresis behavior of RC columns under cyclic loads[J].Engineering Mechanics,2007,24(12):76.
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