超限倾斜结构的弹塑性动力分析
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摘要
结合克拉玛依市科技博物馆工程,对超限倾斜结构设定性能设计目标,并针对性能目标提出抗震措施及抗震构造措施.考虑结构材料的非线性属性,采用静力非线性分析方法,分析倾斜框架-剪力墙结构在地震作用下的响应,尤其是结构在罕遇地震作用下的非线性动力特性.基于罕遇地震的弹塑性时程分析表明,最大层间位移角满足1/100的限值条件.结构在罕遇地震下也是安全可靠的,剪力墙尚处在弹性范围,未出现塑性铰,形成有利的抗震防线,连梁及框架、斜撑均出现塑性铰.其中连梁的塑性程度较深,充分发挥耗能构件性能,在大震后需修复后方可使用,而框架梁及柱塑性铰程度较浅,可不经修复直接投入使用.
According to Science Museum in Kelamayi,the design goal was proposed for this transfinite inclined structure.The nonlinear properties of the materials were considered,and the nonlinear analysis method was used.Seismic reaction analysis of frame-shear wall structure was carried,especially the nonlinear reaction under rare earthquake.The results under rare earthquake show that the maximum interlayer displacement angle is less than the limit value 1/100.The structure is safe and reliable under rare earthquake.Shear wall is elastic and no plastic hinge appears,useful for the development of energy dissipintion.Plastic hinges are found in coupling beams,frame beams and sprags.Plastic hinges in coupling beams have deeply developed,which are useful for the development of energy dissipation.Plastic hinges in frame beams and sprags are not so serious,and these components can be used without repairing,while the coupling beams have to be repaired after rare earthquake.
According to Science Museum in Kelamayi,the design goal was proposed for this transfinite inclined structure.The nonlinear properties of the materials were considered,and the nonlinear analysis method was used.Seismic reaction analysis of frame-shear wall structure was carried,especially the nonlinear reaction under rare earthquake.The results under rare earthquake show that the maximum interlayer displacement angle is less than the limit value 1/100.The structure is safe and reliable under rare earthquake.Shear wall is elastic and no plastic hinge appears,useful for the development of energy dissipintion.Plastic hinges are found in coupling beams,frame beams and sprags.Plastic hinges in coupling beams have deeply developed,which are useful for the development of energy dissipation.Plastic hinges in frame beams and sprags are not so serious,and these components can be used without repairing,while the coupling beams have to be repaired after rare earthquake.
引文
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7缪志伟,陆新征,叶列平等.高强配筋剪力墙框-剪结构的地震行为研究.华中科技大学学报(城市科学版),2007,24(4):1～6(Miao Z W,Lu X Z,Ye L P,et al.Study on the seismic performance of frame-shear wall structures with High-strength reinforced the shear wall.Journal of Huazhong University of Science and Technology(Urban Science Edition),2007,24(4):1～6(in Chinese))
8韩小雷,陈学伟,林生逸等.基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析.建筑结构,2010,40(2):13～16(Han X L,Chen X W,Lin S Y,et al.Elasto-plastic time-history analysis of super high-rise RC structure based on fiber model.Building Structure,2010,40(2):13～16(in Chinese))
9程绍革,王理,张允顺.弹塑性时程分析方法及其应用.建筑结构学报,2000,21(1):52～56(Cheng S G,Wang Li,Zhang Y S.Elastoplastic time histoy analysis method and its application.Journal of Building Struetures,2000,21(1):52～56(in Chinese))
2中华人民共和国行业标准.GB50011-2008建筑抗震设计规范.北京:中国建筑工业出版社,2008(Professional Standard of the People's Republic of China.GB50011-2008Code for Seismic Design of Buildings.Beijing:China Ar-chitecture and Building Press,2008(in Chinese))
3裴星洙,廖述清,张立.基于建筑抗震设计规范的设计用地震动分析.世界地震工程,2006,22(2):154～160(Pei X Z,Liao S Q,Zhang L.Analyses of seismic waves for building structure design based on the design code of earthquake-resistant structure.World Earthquake Engineer-ing,2006,22(2):154～160(in Chinese))
4林旭川,陆新征,缪志伟等.基于分层壳单元的RC核心筒结构有限元分析和工程应用.土木工程学报,2009,42(3):49～54(Lin X C,Lu X Z,Miao Z W,et al.Finite element analysis and engineering application of RC coretube structures based on the multi-layer shell ele-ments.China Civil Engineering Journal,2009,42(3):49～54(in Chinese))
5Miao Z W,Lu X Z,Jiang J J,et al.Nonlinear FE model for RC shear walls based on multi-layer shell element and microplane constitutive model.Proc.Computational Meth-ods in Engineering And Science.Sanya:Tsinghua Univer-sity Press&Springe-Verlag,2006
6叶列平,陆新征,马千里等.混凝土结构抗震非线性分析模型、方法及算例.工程力学,2006,23(S2):173～183(Ye L P,Lu X Z,Ma Q L,et al.Nonlinear analytical models,methods and examples for concrete structures subject to earthquake loading.Engineering Mechanics,2006,23(S2):173～183(in Chinese))
7缪志伟,陆新征,叶列平等.高强配筋剪力墙框-剪结构的地震行为研究.华中科技大学学报(城市科学版),2007,24(4):1～6(Miao Z W,Lu X Z,Ye L P,et al.Study on the seismic performance of frame-shear wall structures with High-strength reinforced the shear wall.Journal of Huazhong University of Science and Technology(Urban Science Edition),2007,24(4):1～6(in Chinese))
8韩小雷,陈学伟,林生逸等.基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析.建筑结构,2010,40(2):13～16(Han X L,Chen X W,Lin S Y,et al.Elasto-plastic time-history analysis of super high-rise RC structure based on fiber model.Building Structure,2010,40(2):13～16(in Chinese))
9程绍革,王理,张允顺.弹塑性时程分析方法及其应用.建筑结构学报,2000,21(1):52～56(Cheng S G,Wang Li,Zhang Y S.Elastoplastic time histoy analysis method and its application.Journal of Building Struetures,2000,21(1):52～56(in Chinese))
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