T形截面短肢剪力墙的非线性分析
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摘要
通过对4个T形截面短肢剪力墙试件进行水平低周反复加载试验,研究了墙体的受力特点与破坏模式。应用有限元软件ANSYS建立的非线性模型对影响短肢剪力墙受力特点与破坏模式的主要因素进行了分析。试验和计算所得顶点力-位移骨架曲线符合良好,说明所建非线性模型合理。算例的分析结果表明,T形短肢剪力墙轴压比、腹板端部配筋率对其受力特点具有较显著的影响;通过改变参数,揭示了各种参数变化对承载力和变形性能的影响规律,为工程应用提供了依据。
Four specimens of the T-shaped short-limbed shear wall were tested under low-frequency cyclic lateral loading.The mechanical properties and failure modes of the T-shaped wall were analyzed based on the experimental study.Nonlinear finite element analysis was carried out on T-shaped short-limbed shear wall through the finite element calculation software ANSYS.The calculated top force-displacement curves agree well with that of experiments,which indicate that the nonlinear FEA model is reasonable.The results show that axial compression ratio and the reinforcement ratio of the web have remarkable effect on the short-limbed shear wall 's mechanical properties.Some researches are provided as a reference for the future design.
Four specimens of the T-shaped short-limbed shear wall were tested under low-frequency cyclic lateral loading.The mechanical properties and failure modes of the T-shaped wall were analyzed based on the experimental study.Nonlinear finite element analysis was carried out on T-shaped short-limbed shear wall through the finite element calculation software ANSYS.The calculated top force-displacement curves agree well with that of experiments,which indicate that the nonlinear FEA model is reasonable.The results show that axial compression ratio and the reinforcement ratio of the web have remarkable effect on the short-limbed shear wall 's mechanical properties.Some researches are provided as a reference for the future design.
引文
[1]郭棣.宽肢异形柱的试验研究[D].西安:西安建筑科技大学,2001.
[2]黄雅捷.钢筋混凝土异形柱框架结构抗震性能及性能设计方法研究[D].西安:西安建筑科技大学,2003.
[3]GB50010—2002混凝土结构设计规范[S].
[4]郭棣,吴敏哲,艾兵.T形截面柱框架的抗震性能分析[J].西安建筑科技大学学报:自然科学版,2003,35(3):205-207.
[5]郭棣,吴敏哲,田炜.T形截面钢筋混凝土柱偏心受压分析[J].西安建筑科技大学学报,2001,33(2):138-143.
[6]蔡全智,高湛,李华,等.钢筋混凝土结构的抗震性短肢剪力墙低周反复试验及其ANSYS分析[J].武汉理工大学学报,2005,27(12):49-52.
[7]Giberson M F.Two Nonlinear Beams with Definitions of Ductility Structure[J].J.Div.,ASCE,1969,95(2):1135-1157.
[8]程文瀼,李爱群.钢筋混凝土柱轴压比限值[J].建筑结构学报,1994,15(6):25-30.
[9]肖建庄,李杰.钢筋混凝土框架柱轴压比限值问题研究[J].世界地震工程,1998,14(4):17-22
[10]吴敏哲,杨玉东,郭棣.T形型钢短肢剪力墙低周反复荷载试验研究[J].西安建筑科技大学学报:自然科学版,2009,41(4):461-466.
[2]黄雅捷.钢筋混凝土异形柱框架结构抗震性能及性能设计方法研究[D].西安:西安建筑科技大学,2003.
[3]GB50010—2002混凝土结构设计规范[S].
[4]郭棣,吴敏哲,艾兵.T形截面柱框架的抗震性能分析[J].西安建筑科技大学学报:自然科学版,2003,35(3):205-207.
[5]郭棣,吴敏哲,田炜.T形截面钢筋混凝土柱偏心受压分析[J].西安建筑科技大学学报,2001,33(2):138-143.
[6]蔡全智,高湛,李华,等.钢筋混凝土结构的抗震性短肢剪力墙低周反复试验及其ANSYS分析[J].武汉理工大学学报,2005,27(12):49-52.
[7]Giberson M F.Two Nonlinear Beams with Definitions of Ductility Structure[J].J.Div.,ASCE,1969,95(2):1135-1157.
[8]程文瀼,李爱群.钢筋混凝土柱轴压比限值[J].建筑结构学报,1994,15(6):25-30.
[9]肖建庄,李杰.钢筋混凝土框架柱轴压比限值问题研究[J].世界地震工程,1998,14(4):17-22
[10]吴敏哲,杨玉东,郭棣.T形型钢短肢剪力墙低周反复荷载试验研究[J].西安建筑科技大学学报:自然科学版,2009,41(4):461-466.
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