带填充墙的钢框架受力性能分析
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摘要
为了分析新型填充墙对钢框架结构抗震性能的影响,利用大型非线性有限元软件ABAQUS对带填充墙钢框架进行了计算分析,主要研究了填充墙钢框架体系在单调荷载、循环荷载作用下的受力性能。进一步对填充墙开洞大小、框架的高宽比对结构整体受力性能的影响进行了分析。研究结果表明:在水平荷载作用下,填充墙能够提高钢框架的刚度和承载力;在循环荷载作用下,结构整体的耗能性能较好。填充墙开洞大小和框架高宽比均对结构整体的承载力和滞回曲线有影响。与其他层相比,底层洞口尺寸的改变对结构性能的影响更大。随着框架高宽比的减少,结构的承载力随之提高,延性性能有所下降。该文得到的结论对于指导工程设计具有重要的参考价值。
In order to study the influence of new filler wall on the seismic performance of a steel frame structure,the mechanical behavior under monotonic and cyclic loading is analyzed based on the NFEA software ABAQUS.Furthermore,the whole size of filler wall and aspect ratio are taken into consideration.The result shows that the filler wall can dramatically improve not only bearing capacity of the frame,as well as its stiffness under horizontal loading,but also its good energy dissipation ability under cyclic loading.In addition,the whole size and aspect ratio also have an influence on structural bearing capacity and hysteretic performance,that is,the whole size of ground floor has more impact on mechanical behavior than any other floor and increase in bearing capacity but decrease in ductility by a diminution in aspect ratio.The conclusion given by this study will have a great referential value for engineering design
In order to study the influence of new filler wall on the seismic performance of a steel frame structure,the mechanical behavior under monotonic and cyclic loading is analyzed based on the NFEA software ABAQUS.Furthermore,the whole size of filler wall and aspect ratio are taken into consideration.The result shows that the filler wall can dramatically improve not only bearing capacity of the frame,as well as its stiffness under horizontal loading,but also its good energy dissipation ability under cyclic loading.In addition,the whole size and aspect ratio also have an influence on structural bearing capacity and hysteretic performance,that is,the whole size of ground floor has more impact on mechanical behavior than any other floor and increase in bearing capacity but decrease in ductility by a diminution in aspect ratio.The conclusion given by this study will have a great referential value for engineering design
引文
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[8]Kim Jinkoo,Choi Hyunhoon.Response modificationfactors of chevron-braced frames[J].EngineeringStructures,2005,27(2):285―300.
[9]Liauw T C,Kwan K H.Plastic theory of non-integralinfilled frames[J].Proceedings of the Institution of CivilEngineers,1983,75(3):379―396.
[10]冼兰.填充墙钢框架结构的受力性能分析[D].西安:西安科技大学,2008.Xian Lan.Study on the performance of filler wall steelframes construction under load[D].Xi’an:Xi’anUniversity of Architecture and Technology,2008.(inChinese)
[11]李捷.带型钢边框混凝土剪力墙的抗震性能研究[D].西安:西安科技大学,2009.Li Jie.Study on seismic performance of reinforcedconcrete shear wall with steel frame[D].Xi’an:Xi’anUniversity of Science and Technology,2009.(inChinese)
[2]Saneinejad A,Hobbs B.Inelastic design of infilledframes[J].Journal of Structural Engineering,1995,121(4):634―650.
[3]管克俭,李捍无,彭少民.空腔结构复合填充墙-钢框架抗侧力性能试验研究[J].世界地震工程,2003,19(3):73―77.Guan Kejian,Li Hanwu,Peng Shaomin.Experimentalresearch on lateral resistant behavior of steel frame withcavity sandwich wall infill[J].World Information onEarthquake Engineering,2003,19(3):73―77.(inChinese)
[4]Dhillon B S,Abdel-Majid S.Interactive analysis anddesign of flexibly connected frames[J].Computers andStructures,1990,36(2):189―202.
[5]刘小强,吴惠弼.高层钢框架的非线性分析模型[J].工程力学,1993,10(4):42―51.Liu Xiaoqiang,Wu Huibi.Nonlinear analysis model oftall frameworks[J].Engineering Mechanics,1993,10(4):42―51.(in Chinese)
[6]李国华,郁银泉,顾强.钢框架内填混凝土墙结构体系有限元分析[J].四川建筑科学研究,2007,33(5):17―20.Li Guohua,Yu Yinquan,Gu Qiang.Finite elementanalysis for concrete infilled steel frame[J].SichuanBuilding Science,2007,33(5):17―20.(in Chinese)
[7]Maheri Mahmoud R,Akbari R.Seismic behaviour factor,R,for steel X-braced and knee-braced RC buildings[J].Engineering Structures,2003,25(12):1505―1513.
[8]Kim Jinkoo,Choi Hyunhoon.Response modificationfactors of chevron-braced frames[J].EngineeringStructures,2005,27(2):285―300.
[9]Liauw T C,Kwan K H.Plastic theory of non-integralinfilled frames[J].Proceedings of the Institution of CivilEngineers,1983,75(3):379―396.
[10]冼兰.填充墙钢框架结构的受力性能分析[D].西安:西安科技大学,2008.Xian Lan.Study on the performance of filler wall steelframes construction under load[D].Xi’an:Xi’anUniversity of Architecture and Technology,2008.(inChinese)
[11]李捷.带型钢边框混凝土剪力墙的抗震性能研究[D].西安:西安科技大学,2009.Li Jie.Study on seismic performance of reinforcedconcrete shear wall with steel frame[D].Xi’an:Xi’anUniversity of Science and Technology,2009.(inChinese)
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