基于抗剪抵抗机构的RC开洞剪力墙极限承载力分析
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摘要
以建立基于抗剪抵抗机构和破坏模式的钢筋混凝土(RC)开洞剪力墙的极限承载力分析模型为目的,将开洞剪力墙的抗剪机构简化为:剪力墙洞口左侧倾角为θ2的斜向混凝土压杆a2、洞口右侧倾角为θ1的斜向混凝土压杆a1、混凝土压杆a1和a2范围内的纵横向分布钢筋四部分组成。基于剪力墙的压杆抵抗机构,推导了RC开洞剪力墙的极限承载力计算公式,并编制了计算程序,对20片不同配筋、不同几何尺寸和受力状态的RC开洞剪力墙进行了极限承载力分析,理论计算和试验结果吻合较好,可以得出该分析模型能够较好地反映RC开洞剪力墙的极限承载力特性,可供RC开洞剪力墙抗剪承载力验算参考。
The purpose is to develop,based on the failure modes and shear resistant mechanism,an analysis model to evaluate the ultimate bearing capacity of RC shear walls with an opening.According to the failure mode and shear resistant mechanism,a RC shear wall with an opening can be simplified as a composition of four components:the concrete struts a2 and a1 with inclination angles θ2 and θ1 on the left and right of the opening,and the longitudinal and lateral steels within the range of concrete struts a1 and a2,respectively.The calculation equations for ultimate bearing capacity are provided from shear mechanism analysis,and a computer program is developed to evaluate the bearing capacity of RC shear walls with an opening.The ultimate bearing capacity of 20 RC shear walls with an opening is analyzed,and the calculation results are in good agreement with test data.Therefore,it can be concluded that the analysis model verified in this study can be used to evaluate the ultimate bearing capacity of RC shear walls with an opening.
The purpose is to develop,based on the failure modes and shear resistant mechanism,an analysis model to evaluate the ultimate bearing capacity of RC shear walls with an opening.According to the failure mode and shear resistant mechanism,a RC shear wall with an opening can be simplified as a composition of four components:the concrete struts a2 and a1 with inclination angles θ2 and θ1 on the left and right of the opening,and the longitudinal and lateral steels within the range of concrete struts a1 and a2,respectively.The calculation equations for ultimate bearing capacity are provided from shear mechanism analysis,and a computer program is developed to evaluate the bearing capacity of RC shear walls with an opening.The ultimate bearing capacity of 20 RC shear walls with an opening is analyzed,and the calculation results are in good agreement with test data.Therefore,it can be concluded that the analysis model verified in this study can be used to evaluate the ultimate bearing capacity of RC shear walls with an opening.
引文
[1]GB50010—2002混凝土结构设计规范[S](GB50010—2002Code for design of concrete structures[S](in Chinese))
[2]霍达,何益斌.高层建筑结构设计[M].北京:高等教育出版社,2004
[3]Taylor C P,Cote P A,Wallance J W.Design of slender reinforced concrete walls with openings[J].ACI Structural Journal,1998,95(4):420-433
[4]汪梦甫,周锡元,黄立忠.钢筋混凝土开洞剪力墙结构抗震非线性有限元分析[J].地震工程与工程振动,2005,25(3):47-54(Wang Mengfu,Zhou Xiyuan,Huang Lizhong.Nonlinear seismic response analysis method of reinforced concrete shear walls with opening[J].Earthquake Engineering and Engineering Vibration,2005,25(3):47-54(in Chinese))
[5]王海波,汪梦甫,沈蒲生.开洞剪力墙结构的非线性地震反应分析[J].工程抗震,2000,(3):3-6(WangHaibuo,Wang Mengfu,Shen Pusheng.Nonlinear seismic response analysis of shear wall structures with opening holes[J].Earthquake Resistant Engineering,2000,(3):3-6(in Chinese))
[6]汪梦甫,周锡元.钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用[J].建筑结构学报,2002,23(1):38-42(Wang Mengfu,Zhou Xiyuan.The improved parallel multi-component model for the nonlinear seismic response analysis of RC walls and its application[J].Journal of Building Structures,2002,23(1):38-42(in Chinese))
[7]陈平,王社良.开洞剪力墙弹塑性分析的壁式框架方法[J].西安建筑科技大学学报,1995,27(3):288-293(Chen Ping,Wang Sheliang.Method of wide-columns used for elasto-plastic analysis of coupled shear walls[J].Journal of Xi’an University of Architecture&Technology,1995,27(3):288-293(in Chinese))
[8]张大长,陈怀亮,卢中强.基于抗剪抵抗机构的无开洞RC剪力墙的极限承载力分析模型的探讨[J].工程力学,2007,(7):142-147(Zhang Dachang,Chen Huailiang,Lu Zhongqiang.The investigation on analysis models of ultimate strength of reinforced concrete shear wall based on shear resistant mechanism[J].Engineering Mechanics,2007,(7):142-147(in Chinese))
[9]小野里憲一,望月洵,竹中克己,等.耐震壁の強度と破壊モードの制御[C]//コンクリート工学論文報告集.日本コンクリート工学協会,1992(Norikazu Onozato,Masao Takehara,Makoto Mochizuki,et al.Controls of strength and failure modes of RC shear walls[C]//Japan:Japan Concrete Institute,1992(in Japanese))
[10]望月洵,小野里憲一,竹原雅夫,等.マクロモデルによる無開口耐震壁の最大強度の解析精度[C]//コンクリート工学論文報告集.日本コンクリート工学協会,2003(Makoto Mochizuki,Norikazu Onozato,Masao Takehara,et al.Analytical accuracy of maximum strengths of shear walls based on macro-model[C]//Japan:Japan Concrete Institute,2003(in Japanese))
[11]竹原雅夫,小野里憲一,望月洵.有開口耐震壁の簡略最大強度式とその解析精度[J].コンクリート工学,2002,13(1):119-126(Masao Takehara,Norikazu Onozato,Makoto Mochizuki.Simplified maximum strength formula of framed walls with an opening and its analytical accuracy[J].Concrete Research and Technology,2002,13(1):119-126(in Japanese))
[12]Makoto Mochizuki,Norikazu Onozato,Masao Takehara.Yukichi Hanehira,Analytical accuracy of maximumstrengths of reinforced concrete framed shear walls by macroscopic models[J].Concrete Research and Technology,JCI,2003,14(2):11-21
[13]望月洵,竹原雅夫,小野里憲一.マケロモデルによる開口耐震壁の最大強度の解析[C]//コンクリート工学論文報告集.日本コンクリート工学協会,1990(Makoto Mochizuki,Masao Takehara,Norikazu Onozato,et al.Analysis of maximum strengths of shear walls with opening based on macro-mode[lC]//Japan:Japan Concrete Institute,1990(in Japanese))
[14]王曙光,蓝宗建.劲性钢筋混凝土开洞低剪力墙拟静力试验研究[J].建筑结构学报,2005,26(1):85-90(Wang Shuguang,Lan Zongjian.Experimental research on seismic capability of steel reinforced concrete low shear wall with opening[J].Journal of Building Structures,2005,26(1):85-90(in Chinese))
[2]霍达,何益斌.高层建筑结构设计[M].北京:高等教育出版社,2004
[3]Taylor C P,Cote P A,Wallance J W.Design of slender reinforced concrete walls with openings[J].ACI Structural Journal,1998,95(4):420-433
[4]汪梦甫,周锡元,黄立忠.钢筋混凝土开洞剪力墙结构抗震非线性有限元分析[J].地震工程与工程振动,2005,25(3):47-54(Wang Mengfu,Zhou Xiyuan,Huang Lizhong.Nonlinear seismic response analysis method of reinforced concrete shear walls with opening[J].Earthquake Engineering and Engineering Vibration,2005,25(3):47-54(in Chinese))
[5]王海波,汪梦甫,沈蒲生.开洞剪力墙结构的非线性地震反应分析[J].工程抗震,2000,(3):3-6(WangHaibuo,Wang Mengfu,Shen Pusheng.Nonlinear seismic response analysis of shear wall structures with opening holes[J].Earthquake Resistant Engineering,2000,(3):3-6(in Chinese))
[6]汪梦甫,周锡元.钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用[J].建筑结构学报,2002,23(1):38-42(Wang Mengfu,Zhou Xiyuan.The improved parallel multi-component model for the nonlinear seismic response analysis of RC walls and its application[J].Journal of Building Structures,2002,23(1):38-42(in Chinese))
[7]陈平,王社良.开洞剪力墙弹塑性分析的壁式框架方法[J].西安建筑科技大学学报,1995,27(3):288-293(Chen Ping,Wang Sheliang.Method of wide-columns used for elasto-plastic analysis of coupled shear walls[J].Journal of Xi’an University of Architecture&Technology,1995,27(3):288-293(in Chinese))
[8]张大长,陈怀亮,卢中强.基于抗剪抵抗机构的无开洞RC剪力墙的极限承载力分析模型的探讨[J].工程力学,2007,(7):142-147(Zhang Dachang,Chen Huailiang,Lu Zhongqiang.The investigation on analysis models of ultimate strength of reinforced concrete shear wall based on shear resistant mechanism[J].Engineering Mechanics,2007,(7):142-147(in Chinese))
[9]小野里憲一,望月洵,竹中克己,等.耐震壁の強度と破壊モードの制御[C]//コンクリート工学論文報告集.日本コンクリート工学協会,1992(Norikazu Onozato,Masao Takehara,Makoto Mochizuki,et al.Controls of strength and failure modes of RC shear walls[C]//Japan:Japan Concrete Institute,1992(in Japanese))
[10]望月洵,小野里憲一,竹原雅夫,等.マクロモデルによる無開口耐震壁の最大強度の解析精度[C]//コンクリート工学論文報告集.日本コンクリート工学協会,2003(Makoto Mochizuki,Norikazu Onozato,Masao Takehara,et al.Analytical accuracy of maximum strengths of shear walls based on macro-model[C]//Japan:Japan Concrete Institute,2003(in Japanese))
[11]竹原雅夫,小野里憲一,望月洵.有開口耐震壁の簡略最大強度式とその解析精度[J].コンクリート工学,2002,13(1):119-126(Masao Takehara,Norikazu Onozato,Makoto Mochizuki.Simplified maximum strength formula of framed walls with an opening and its analytical accuracy[J].Concrete Research and Technology,2002,13(1):119-126(in Japanese))
[12]Makoto Mochizuki,Norikazu Onozato,Masao Takehara.Yukichi Hanehira,Analytical accuracy of maximumstrengths of reinforced concrete framed shear walls by macroscopic models[J].Concrete Research and Technology,JCI,2003,14(2):11-21
[13]望月洵,竹原雅夫,小野里憲一.マケロモデルによる開口耐震壁の最大強度の解析[C]//コンクリート工学論文報告集.日本コンクリート工学協会,1990(Makoto Mochizuki,Masao Takehara,Norikazu Onozato,et al.Analysis of maximum strengths of shear walls with opening based on macro-mode[lC]//Japan:Japan Concrete Institute,1990(in Japanese))
[14]王曙光,蓝宗建.劲性钢筋混凝土开洞低剪力墙拟静力试验研究[J].建筑结构学报,2005,26(1):85-90(Wang Shuguang,Lan Zongjian.Experimental research on seismic capability of steel reinforced concrete low shear wall with opening[J].Journal of Building Structures,2005,26(1):85-90(in Chinese))
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