门式刚架改良型节点抗震性能分析
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摘要
轻钢门式刚架结构具有自重轻,抗震性能好等优点。然而,现行门式刚架节点的构造和受力性能并不理想,为了改善门式刚架节点受力性能,文中在研究传统节点的基础上提出改良型节点形式,用ANSYS软件进行循环荷载作用的滞回性能检验、比较,对关键部位进行应力分析。结果表明,改良后门式刚架节点承载力有了大幅的提高,抗震性能也有了明显的改善,为工程应用和理论研究提供了宝贵的资料。
The portal rigid frame with its light and good seismic performance has been widely applied to building engineering.But,the corresponding design specification for the frame is not perfected.Therefore modified connections are proposed.The digital repeated loading tests on the modified connection modes were stimulated by using the ANSYS to obtain their hysteretic behavior and stress of key parts.The results show that the modified connections are better than the common ones in load capacity and seismic performance.
The portal rigid frame with its light and good seismic performance has been widely applied to building engineering.But,the corresponding design specification for the frame is not perfected.Therefore modified connections are proposed.The digital repeated loading tests on the modified connection modes were stimulated by using the ANSYS to obtain their hysteretic behavior and stress of key parts.The results show that the modified connections are better than the common ones in load capacity and seismic performance.
引文
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[3]苏献祥,闫月梅,李超华,等.反复荷载作用下矩形钢管混凝土柱的滞回性能研究[J].世界地震工程,2009,25(1):138-142.Su Xianxiang,Yan Yuemei,Li Chaohua,et al.Research on the hysteretic behavior of CFRTColumns under cyclic loading[J].World EarthquakeEngineering,2009,25(1):138-142.
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[2]曹杰.轻钢门式刚架梁柱连接节点受力性能研究[D].西安:西安科技大学,2009.Cao Jie.The research on the character of gabled frames light-steel structure joints[D].Xi’an:Xi’an University of Science and Technology,2009.
[3]苏献祥,闫月梅,李超华,等.反复荷载作用下矩形钢管混凝土柱的滞回性能研究[J].世界地震工程,2009,25(1):138-142.Su Xianxiang,Yan Yuemei,Li Chaohua,et al.Research on the hysteretic behavior of CFRTColumns under cyclic loading[J].World EarthquakeEngineering,2009,25(1):138-142.
[4]荆军,王元清,石永久.门式刚架轻型钢结构端板连接节点性能研究与设计[J].建筑结构,2000(4):26-28.Jing Jun,Wang Yuanqing,Shi Yongjiu.Steel portal frame light-end-plate connections performance research and design[J].Building Structure,2000(4):26-28.
[5]施刚.门式刚架轻型房屋钢结构端板连接的有限元与试验分析[J].土木工程学报,2004,34(7):6-8.Shi Gang.Finite element and experimental analysis of steel portal frame light house end-plate connections[J].China Civil Engineering Journal,2004,34(7):6-8.
[6]任重.ANSYS实用分析教程[M].北京大学出版社,2003.Renzhong.ANSYS Practical Analysis Tutorial[M].Beijing:Peking University Press,2003.
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