开缝钢板墙简化模型研究
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摘要
开缝钢板墙是一种用于高层建筑的钢结构抗侧力构件。为便于其在实际工程中建模和分析,本文提出了3折线轴力-变形关系的简化交叉支撑模型,用于模拟两边连接开缝钢板墙的受力变形性能。对6个两边连接开缝钢板墙试件进行了数值模拟,验证了该简化模型的合理性;在一个设置有开缝钢板墙的5层框架结构体系中使用交叉支撑模型,并进行拟静力推覆计算,验证了该简化模型的可行性;还在该体系中使用了单斜撑简化模型,得到的结构体系的基本周期、破坏模式、结构塑性铰出现位置等结果与交叉支撑模型一致,而交叉支撑模型能更合理地反映框架梁的弯矩分布。
As a kind of lateral force resistant component for high-rise buildings of steel structures,steel plate walls with slits have been applied in the actual structures.But it is hard to get such systems generalized for its difficulty of modeling and seeking convergence results.In this paper a simplified cross brace model with three-line axial force-deformation curve is presented to simulate the behavior of steel plate walls with slits.Numerical simulation is conducted on six specimens,showing good accuracy of the proposed model in test analysis.This cross brace model is used in a five story frame for pushover calculation,comparing with a single brace model's results in terms of basic period,failure mode and the location of plastic hinges.And the distribution of bending moments in the beam is more reasonable if the cross brace model is used.
As a kind of lateral force resistant component for high-rise buildings of steel structures,steel plate walls with slits have been applied in the actual structures.But it is hard to get such systems generalized for its difficulty of modeling and seeking convergence results.In this paper a simplified cross brace model with three-line axial force-deformation curve is presented to simulate the behavior of steel plate walls with slits.Numerical simulation is conducted on six specimens,showing good accuracy of the proposed model in test analysis.This cross brace model is used in a five story frame for pushover calculation,comparing with a single brace model's results in terms of basic period,failure mode and the location of plastic hinges.And the distribution of bending moments in the beam is more reasonable if the cross brace model is used.
引文
[1]Toko Hitaka,Chiaki Matsui.Experimental study on steelshear wall with slits[J].Journal of Structural Engineering,2003,129(5):586-595.
[2]Toko Hitaka,Chiaki Matsui,Junichi Sakai.Cyclic test onsteel and concrete-filled tube frames with slit walls[J].Earthquake Engineering and Structural Dynamics,2007,36(6):707-727.
[3]郭彦林,董全利.钢板剪力墙的发展与研究现状[J].钢结构,2005,20(1):1-6.
[4]Mohamed Elgaaly,Fellow,ASCE,and Yinbo Liu.Analysisof thin-steel-plate shear walls[J].Journal of StructuralEngineering,1997,123(11):1487-1496.
[5]Berman,J.W.and Bruneau,M..Plastic analysis anddesign of steel plate shear walls[J].Journal of StructuralEngineering,ASCE,2003,129(11):1148-1156.
[6]魏德敏,温沛刚,卞宗舒.新型带缝钢板剪力墙的试验研究及其数值模拟[J].地震工程与工程振动,2006,26(2):129-134.
[7]张耀春,刘永华,丁玉坤,张文元.带竖缝钢筋混凝土剪力墙板的简化静力分析模型[J].土木工程学报,2006,39(9):62-68.
[8]王文涛.屈曲约束开缝组合钢板剪力墙试验研究与理论分析[D].同济大学硕士学位论文,2008.
[9]汪文辉.带缝钢板剪力墙试验研究与理论分析[D].同济大学硕士学位论文,2009.
[10]戴成华.框架-开缝组合钢板墙结构抗震设计方法研究[D].同济大学硕士学位论文,2009.
[11]建筑结构荷载规范(GB 50009-2001)[S].
[2]Toko Hitaka,Chiaki Matsui,Junichi Sakai.Cyclic test onsteel and concrete-filled tube frames with slit walls[J].Earthquake Engineering and Structural Dynamics,2007,36(6):707-727.
[3]郭彦林,董全利.钢板剪力墙的发展与研究现状[J].钢结构,2005,20(1):1-6.
[4]Mohamed Elgaaly,Fellow,ASCE,and Yinbo Liu.Analysisof thin-steel-plate shear walls[J].Journal of StructuralEngineering,1997,123(11):1487-1496.
[5]Berman,J.W.and Bruneau,M..Plastic analysis anddesign of steel plate shear walls[J].Journal of StructuralEngineering,ASCE,2003,129(11):1148-1156.
[6]魏德敏,温沛刚,卞宗舒.新型带缝钢板剪力墙的试验研究及其数值模拟[J].地震工程与工程振动,2006,26(2):129-134.
[7]张耀春,刘永华,丁玉坤,张文元.带竖缝钢筋混凝土剪力墙板的简化静力分析模型[J].土木工程学报,2006,39(9):62-68.
[8]王文涛.屈曲约束开缝组合钢板剪力墙试验研究与理论分析[D].同济大学硕士学位论文,2008.
[9]汪文辉.带缝钢板剪力墙试验研究与理论分析[D].同济大学硕士学位论文,2009.
[10]戴成华.框架-开缝组合钢板墙结构抗震设计方法研究[D].同济大学硕士学位论文,2009.
[11]建筑结构荷载规范(GB 50009-2001)[S].
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