基于抗剪机构和破坏模式的RC剪力墙极限承载力分析
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摘要
以建立基于抗剪机构和破坏模式的钢筋混凝土(RC)剪力墙极限承载力的分析模型为目的,根据RC剪力墙破坏模式,剪力墙的抗剪机构可简化成倾角为θ的混凝土压杆、纵向及横向分布钢筋3部分。基于该抗剪机构,推导了RC剪力墙的极限承载力的计算公式,并编制了计算程序,对15片不同配筋、不同几何尺寸和受力状态的RC剪力墙进行了承载力分析,理论计算结果和试验结果吻合较好,该分析模型能够较好地反映RC剪力墙的极限承载力特性,可供RC剪力墙抗剪强度验算参考。
The purpose of the study is to develop an analysis model to evaluate the ultimate strength of RC shear wall based on the failure modes and shear resistant mechanism.According to the failure modes,shear resistant mechanism of RC shear wall can be simplified as a composition of concrete strut with an inclination of θ,lateral and longitudinal reinforcements.The calculation equations for ultimate strength were provided from shear resistant mechanism,and a program was developed to evaluate the strengths of RC shear walls.The ultimate strengths of 15 RC shear walls were analyzed with this program.The analysis results have good agreement with the test ones,therefore,the analysis model verified in this paper can simulate the ultimate strengths of RC shear walls,and can be used to evaluate the strength of RC shear wall.
The purpose of the study is to develop an analysis model to evaluate the ultimate strength of RC shear wall based on the failure modes and shear resistant mechanism.According to the failure modes,shear resistant mechanism of RC shear wall can be simplified as a composition of concrete strut with an inclination of θ,lateral and longitudinal reinforcements.The calculation equations for ultimate strength were provided from shear resistant mechanism,and a program was developed to evaluate the strengths of RC shear walls.The ultimate strengths of 15 RC shear walls were analyzed with this program.The analysis results have good agreement with the test ones,therefore,the analysis model verified in this paper can simulate the ultimate strengths of RC shear walls,and can be used to evaluate the strength of RC shear wall.
引文
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[3]陈亦,何军毅,蒋欢军.剪力墙结构计算模型分析[J].建筑科学研究,2001,27(1):1-4.
[4]蒋欢军,吕西林.用一种墙体单元分析剪力墙结构[J].地震工程与工程振动,1998,18(3):40-48.
[5]李明顺,徐有邻,白生翔,等.GB 50010混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.191-192.
[6]小野里一,望月洵,竹中克己,等.耐震壁の强度と破壊モ一ドの制御[J].コンクリ一ト工学論文報告集,1992,14(2):891-896.
[7]Makoto MOCHIZUK I,Norikazu ONOZATO,Masao TAKEHA-RA,et al.Analytical accuracy of maximum strengths of rein-forced concrete fram ed shear walls by macroscop ic models[J].コンクリ一ト工学論文報告集,2003,14(2):11-21.
[8]望月洵、小野里一.連層耐震壁の破壊モ一ドの判別[J].コンクリ一ト工学論文報告集,1991,13(2):559-564.
[9]ZHANG Dachang.F in ite elem ent analysis on shear performanceof reinforced concrete structure sub jected to the seism ic loads[D].Japan:Ch iba Un iversity,2003.
[10]小野里一,望月洵.マクロモデルによる連層耐震壁の最大强度の解析[J].コンクリ一ト工学論文報告集,1989,11(2)567-572.
[11]张大长,孙伟民,陆伟东.RC结构二维非线性有限元分析模型的探讨[J].南京工业大学学报:自然科学版,2005,27(4):1-7.
[2]陈勤,钱稼茹,李耕勤.剪力墙受力性能的分析宏模型静力弹塑性分析[J].土木工程学报,2004,37(3):35-43.
[3]陈亦,何军毅,蒋欢军.剪力墙结构计算模型分析[J].建筑科学研究,2001,27(1):1-4.
[4]蒋欢军,吕西林.用一种墙体单元分析剪力墙结构[J].地震工程与工程振动,1998,18(3):40-48.
[5]李明顺,徐有邻,白生翔,等.GB 50010混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.191-192.
[6]小野里一,望月洵,竹中克己,等.耐震壁の强度と破壊モ一ドの制御[J].コンクリ一ト工学論文報告集,1992,14(2):891-896.
[7]Makoto MOCHIZUK I,Norikazu ONOZATO,Masao TAKEHA-RA,et al.Analytical accuracy of maximum strengths of rein-forced concrete fram ed shear walls by macroscop ic models[J].コンクリ一ト工学論文報告集,2003,14(2):11-21.
[8]望月洵、小野里一.連層耐震壁の破壊モ一ドの判別[J].コンクリ一ト工学論文報告集,1991,13(2):559-564.
[9]ZHANG Dachang.F in ite elem ent analysis on shear performanceof reinforced concrete structure sub jected to the seism ic loads[D].Japan:Ch iba Un iversity,2003.
[10]小野里一,望月洵.マクロモデルによる連層耐震壁の最大强度の解析[J].コンクリ一ト工学論文報告集,1989,11(2)567-572.
[11]张大长,孙伟民,陆伟东.RC结构二维非线性有限元分析模型的探讨[J].南京工业大学学报:自然科学版,2005,27(4):1-7.
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