高层住宅钢管混凝土与钢梁框架-RC剪力墙结构静力弹塑性分析
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摘要
钢-混凝土混合结构承载力高、结构延性好,在高层建筑中得到很好的运用。本文结合某高层住宅设计,采用钢管混凝土柱与钢梁框架-剪力墙体系,运用EPDA软件的PUSH程序对结构进行罕遇地震下静力弹塑性分析,以动力时程分析结果为基准,比较不同侧向力加载模式下结构的荷载位移曲线,研究性能点处各项参数指标,研究表明倒三角形加载模式精度较高。以倒三角形加载模式展开结构塑性发展全过程分析,找出结构可能存在的薄弱部位,给出工程设计建议。
The steel-concrete mixed structures with high bearing capacity and excellent seismic behavior have a wide range of applications in many high-rise buildings.In this paper,CFST and steel beam frame-shear walls structure is adopted, and the PUSH program of EPDA is used to carry out the static elastoplastic analysis of the structure under rare earthquake. Based on the results of dynamic time history analysis, the load displacement curves of structures under different lateral loading modes are compared and the various parameters of performance points are studied. The result shows that the inverse triangle loading mode has higher accuracy. The weak parts of the structure can be found out with result of he whole process of plastic development of the structure analysis under inverted triangle loading mode.Then engineering design suggestions are given.
The steel-concrete mixed structures with high bearing capacity and excellent seismic behavior have a wide range of applications in many high-rise buildings.In this paper,CFST and steel beam frame-shear walls structure is adopted, and the PUSH program of EPDA is used to carry out the static elastoplastic analysis of the structure under rare earthquake. Based on the results of dynamic time history analysis, the load displacement curves of structures under different lateral loading modes are compared and the various parameters of performance points are studied. The result shows that the inverse triangle loading mode has higher accuracy. The weak parts of the structure can be found out with result of he whole process of plastic development of the structure analysis under inverted triangle loading mode.Then engineering design suggestions are given.
引文
[1] 魏国强.钢管混凝土框架-RC剪力墙混合结构抗震性能研究[D].兰州:兰州理工大学,2013
[2] 王文达,韩林海,陶忠.钢管混凝柱 -钢梁平面框架抗震性能的试验研究[J].建筑结构学报,2006,27(3):48-58
[3] 王文达,魏国强,李华伟.钢管混凝土框架-RC剪力墙混合结构滞回性能分析[J].振动与冲击,2013,32(15):41-46
[4] 汪大绥,周建龙.我国高层建筑钢-混凝土混合结构发展与展望[J].建筑结构学报,2010,31(6):62-70
[5] 汪大绥,贺军利,张凤新.静力弹塑性分析(Pushover Analysis)的基本原理和计算实例[J].世界地震工程,2004,(1):45-53
[6] 胡孔鹏.高层剪力墙结构中剪力墙布置和合理数量的研究[D].合肥:合肥工业大学,2012
[7] 曾鹏,曹平周.高层剪力墙结构住宅剪力墙类型与布置对结构性能影响分析[J].建筑科学,2017,33(1):100-106
[8] 李云贵,邵弘,田志昌,等.多层、高层建筑结构弹塑性动力、静力分析[J].建筑结构学报,2002,(5):56-62
[9] 高层结构空间有限元分析新模型—SATWE[J].土木工程学报,1996,(3):49-56
[10] 黄吉锋,周锡元.钢-混凝土混合结构地震反应分析的CCQC和FDCQC方法及其应用[J].建筑结构,2008,(10):44-49
[11] 杨志勇,黄吉锋,邵弘.弹性与弹塑性动力时程分析方法中若干问题探讨[J].建筑结构学报,2009,30(S1):213-217
[2] 王文达,韩林海,陶忠.钢管混凝柱 -钢梁平面框架抗震性能的试验研究[J].建筑结构学报,2006,27(3):48-58
[3] 王文达,魏国强,李华伟.钢管混凝土框架-RC剪力墙混合结构滞回性能分析[J].振动与冲击,2013,32(15):41-46
[4] 汪大绥,周建龙.我国高层建筑钢-混凝土混合结构发展与展望[J].建筑结构学报,2010,31(6):62-70
[5] 汪大绥,贺军利,张凤新.静力弹塑性分析(Pushover Analysis)的基本原理和计算实例[J].世界地震工程,2004,(1):45-53
[6] 胡孔鹏.高层剪力墙结构中剪力墙布置和合理数量的研究[D].合肥:合肥工业大学,2012
[7] 曾鹏,曹平周.高层剪力墙结构住宅剪力墙类型与布置对结构性能影响分析[J].建筑科学,2017,33(1):100-106
[8] 李云贵,邵弘,田志昌,等.多层、高层建筑结构弹塑性动力、静力分析[J].建筑结构学报,2002,(5):56-62
[9] 高层结构空间有限元分析新模型—SATWE[J].土木工程学报,1996,(3):49-56
[10] 黄吉锋,周锡元.钢-混凝土混合结构地震反应分析的CCQC和FDCQC方法及其应用[J].建筑结构,2008,(10):44-49
[11] 杨志勇,黄吉锋,邵弘.弹性与弹塑性动力时程分析方法中若干问题探讨[J].建筑结构学报,2009,30(S1):213-217