高层RC框架-剪力墙结构抗倒塌能力初步研究
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摘要
分别按设防烈度为6度、7度、7度(0.15g)、8度和8度(0.30g)时规范最低要求设计了5个高层框架-剪力墙结构,作为分析实例,采用增量动力分析方法(IDA)初步研究了其在大震作用下的抗倒塌能力。得到以下结论:构件形成塑性铰或破坏的顺序符合概念设计思想,满足多道抗震设防的理念;框架-剪力墙结构具有明显的屈服点;符合规范要求的高层框架-剪力墙结构基本满足"大震不倒"的设防目标。
Taking 5 tall frame-shear wall structures which were designed according to minimum requirements of fortification intensity 6,7,7(0.15g),8 and 8(0.3g) respectively in design code as examples,collapse resistant capability was studied preliminarily under rare earthquake by incremental dynamic analysis method.Conclusions have been reached as follows: the order of structural member′s plastic development(plastic hinge or collapse) fits the conception of displacement-based seismic design and multi-line seismic resistance,frame-shear wall structures have clear yielding point,structures which conform to design code can basically satisfy the fortification objectives of no-collapse under rare earthquake.
Taking 5 tall frame-shear wall structures which were designed according to minimum requirements of fortification intensity 6,7,7(0.15g),8 and 8(0.3g) respectively in design code as examples,collapse resistant capability was studied preliminarily under rare earthquake by incremental dynamic analysis method.Conclusions have been reached as follows: the order of structural member′s plastic development(plastic hinge or collapse) fits the conception of displacement-based seismic design and multi-line seismic resistance,frame-shear wall structures have clear yielding point,structures which conform to design code can basically satisfy the fortification objectives of no-collapse under rare earthquake.
引文
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[2]王亚勇,戴国莹.建筑抗震设计规范疑问解答[M].北京:中国建筑工业出版社,2006.
[3]BAO YIHAI,KUNNATH S K.Simplified progressivecollapse simulation of RC frame-wall structures[J].Engineering Structures,2010,32(10):3153-3162.
[4]MIAO ZHIWEI,YE LIEPING,GUAN HONG.Evaluation of modal and traditional pushover analyses inframe-shear-wall structures[J].Advances in StructuralEngineering,2011,14(5):815-836.
[5]叶列平,曲哲,陆新征,等.提高建筑结构抗地震倒塌能力的设计思想和方法[J].建筑结构学报,2008,29(4):42-50.
[6]左琼.基于冗余度理论的钢筋混凝土框架结构抗地震倒塌能力评估[D].北京:中国建筑科学研究院,2012.
[7]岳茂光,王东升,王亚勇,等.设计性能目标下RC框架结构抗倒塌能力研究[J].建筑结构学报,2012,33(6):8-15.
[8]岳茂光,王东升,孙治国,等.汶川地震下框架结构的抗倒塌能力分析[J].工程力学,2012,29(11):250-256.
[9]GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[10]JGJ3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.
[11]王雁昆,杨志勇,黄吉锋.框架结构ABAQUS与EPDA/PUSH的弹塑性分析对比[J].建筑结构,2008,38(S1):13-15.
[12]GB50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[13]岳茂光.场地-结构体系基于性能抗震设计分析方法研究[D].大连:大连理工大学,2009.
[14]吕大刚,于晓辉,王光远.单地震动记录随机增量动力分析[J].工程力学,2010,27(SI):53-58.
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