直接基于位移设计的高强钢组合K形偏心支撑钢框架的抗震性能研究

发布时间：2018-05-16 02:18

本文选题：偏心支撑钢框架 + 高强钢　；参考：《地震工程学报》2016年05期

【摘要】：K形高强钢组合偏心支撑(K-HSS-EBF)是指耗能连梁和支撑采用Q345钢,而框架梁、框架柱采用高强度钢(如Q460)。为研究其在罕遇地震作用下的抗震性能,在试验研究的基础上,采用直接基于位移的抗震设计方法设计了5层、8层和12层算例,分别进行静力推覆分析和动力弹塑性分析,研究高强钢组合偏心支撑钢框架在罕遇地震作用下层间侧移分布和破坏模式。研究结果表明:直接基于位移的抗震设计方法设计的算例在罕遇地震作用下,结构的层间侧移满足我国现行抗震规范的要求,结构呈理想的渐进式梁铰屈服机构,并证明该设计方法的合理性和可靠性。
[Abstract]:K-HSS-EBF (K-HSS-EBF) means that the energy dissipation beam and the bracing are Q345 steel, while the frame beam and frame column adopt high strength steel (such as Q460). In order to study its seismic performance under the action of rare earthquake, based on the experimental study, five stories 8 stories and 12 stories were designed by direct displacement-based seismic design method, and the static force nappe analysis and dynamic elastoplastic analysis were carried out, respectively. The lateral distribution and failure mode of eccentrically braced steel frame with high strength steel under rare earthquake are studied. The results show that the seismic design method based on displacement can meet the requirements of the current seismic code in our country, and the structure is an ideal progressive beam hinge yield mechanism. The rationality and reliability of the design method are proved.
【作者单位】：大连理工大学建设工程学部;西安建筑科技大学土木工程学院;中国建筑标准设计研究院有限公司;
【基金】：“十二五“科技支撑计划课题(2013BAJ10B03-0)
【分类号】：TU352.11;TU391

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