第38参第4期 2016年8月
土木建筑与环境工程
Journal of Civil,Architectural &. Environmental Engineering
doi;10. 11835/j. issn. 1674-4764. 2016. 04. 014
Y形偏心支撑高强钢框架结构抗震性能
连鸣，苏明周
（西安建筑科技大学土木工程学院，西安710055）
Vol. 38 No. 4 Aug. 2016
摘要：在Y形偏心支撑高强钢框架结构抗震性振动台试验的基础上，建立了试验试件的有限元模型，并验证了分析的正确性。设计了一个9层的Y形偏心支撑高强钢框架结构，以耗能梁段长度、耗能段腹板高厚比、高跨比为参数，对9层结构进行了非线性动力时程分析，研究了以上参数对结构抗震性能的影响。研究结果表明，改变耗能梁段长度、高跨比对结构层间侧移、耗能梁段性能、框架柱弯矩、耗能能力均有不同程度的影响，对框架柱轴力、基底剪力无显著影响；改变耗能梁段腹板高厚比对结构耗能能力有影响，对结构层间侧移、耗能梁段性能、框架柱受力、基底剪力无显著影响，并给出了相关设计建议。
关键词：高强钢：偏心支撑框架；有限元；时程分析；抗震性能
中图分类号：TU392.5
文献标志码：A
文章编号：1674-4764(2016)04-0086-10
Finiteelementanalysisonseismicperformanceofhighstrength
steelframes with Y-type eccentrically braces
Lian Ming, Su Mingzhou
(School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China)
Abstract: The finite element models of test specimen were established after the shake table test of high strength steel frames with Y-type eccentrically braces (Y-HSS-EBF). A 9-story Y-HSS-EBF structure was designed and nonlinear time history analysis were conducted to study the influence of link length, link web ratio of height to thickness and ratio of depth to span to seismic performance of 9-story Y-HSS-EBFs. Results indicated that different link length and ratio of depth to span had different influence to the interstory displacement, seismic performance of link, column moment and energy dissipation capacity, but slight influence to column axial force and base shear force. Different link web ratio of height to thickness had different influence to energy dissipation capacity, but slight influence to interstory displacement, seismic performance of link, column force and base shear force. Finally, some recommendations for engineering design were given based on the analysis.
Keywords: high strength steel; eccentrically braced frame; finite element; time history analysis; seismic performance
收稿日期：2015-12-20
基金项目：国家自然科学基金（51178382）
作者简介：连鸣（1987-），男，博士，主要从事新型钢结构体系抗震性能及设计方法研究，（E-mail）lianming0821@
163.com.
Received:2016-12-20
Foundation item:National Natural Science Foundation of China （No.51178382)
Author brief: Lian Ming (1987-), PhD. main research interests: seismic performance and design methods of steel
structures,(E-mail)lianming0821@163. com.