[1]冉红东,朱兵,赵道程,等.双角钢组合截面构件在往复弯曲下的恢复力模型研究[J].西安建筑科技大学学报(自然科学版),2017,49(06):827-834.[doi:10.15986/j.1006-7930.2017.06.009]
 RAN Hongdong,ZHU Bing,ZHAO Daocheng,et al.Study on restoring force model of double-angle built-up members under cyclic bending[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,49(06):827-834.[doi:10.15986/j.1006-7930.2017.06.009]
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双角钢组合截面构件在往复弯曲下的恢复力模型研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
49
期数:
2017年06期
页码:
827-834
栏目:
出版日期:
2017-12-31

文章信息/Info

Title:
Study on restoring force model of double-angle built-up members under cyclic bending
文章编号:
1006-7930(2017)06-0827-08
作者:
冉红东1朱兵2赵道程3弓欢学1杨靖4
(1.西安建筑科技大学 土木工程学院,陕西 西安 710055;2.中冶京诚工程技术有限公司,北京 100176;3.中冶建筑研究总院有限公司,北京 100088;4.西安鹏程爆破工程有限公司,陕西 西安 710065)
Author(s):
RAN Hongdong1 ZHU Bing2 ZHAO Daocheng3 GONG Huanxue1 YANG Jing4
(1. School of Civil Engineering, Xi′an Univ. of Arch. & Tech., Xi′an 710055,China; 2. Capital Engineering & Research Incorporation Ltd, Beijing 100176,China; 3. Central Research Institute of Building and Construction of China Metallurgical Group Corporation, Beijing 100088, China; 4. Xi′an Pengcheng Blasting Engineering Co. Ltd, Xi′an 710065, China)
关键词:
延性交错桁架钢框架结构双角钢组合截面往复弯曲骨架曲线恢复力模型
Keywords:
special staggered truss steel frame structure double-angle built-up members cyclic bending skeleton curves restoring force model
分类号:
TU391
DOI:
10.15986/j.1006-7930.2017.06.009
文献标志码:
A
摘要:
为建立延性交错桁架钢框架结构双角钢组合截面弦杆在往复弯曲下的恢复力模型,对6个双角钢组合截面足尺试件进行了低周往复加载试验,研究了填板间距及加劲肋布置对构件滞回性能的影响.通过对试验数据的回归分析,得到了试件的骨架曲线及刚度退化规律,确定了双角钢组合截面弦杆的恢复力模型,其骨架曲线为弹性阶段、强化阶段和承载力退化阶段组成的三折线模型.最后,进行了计算骨架曲线、恢复力模型与试验骨架曲线、滞回曲线的对比分析,结果吻合较好.计算结果表明,提出的恢复力模型可以良好的表达延性交错桁架钢框架结构双角钢组合截面弦杆的承载力和刚度退化等特征,可为结构的非线性动力分析提供参考.
Abstract:
To establish the restoring force model of double-angle built-up chords under cyclic bending in special staggered truss steel frame structure, six full-size double-angle built-up specimens were tested under cyclic bending, and the influence of the stitch spacing and stiffeners settings on the hysteretic behavior of the specimens were studied. Through analysis of test dates, the skeleton curve and rigidity degradation rule of the specimens were obtained and the restoring force models were determined as well. The three-liner skeleton curve of the restoring force was composed of the elastic stage, the reinforcement stage as well as bearing-degradation stage. Finally, the calculating skeleton curve and the restoring force model with the test skeleton curve and hysteretic curve were compared. The calculating model showed good agreement with the test curve. It showed that the calculating restoring force model can well express the bearing-capacity and rigidity degradation characteristics of the double-angle built-up chords in special staggered truss steel frame structure and can offer reference for the nonlinear dynamic analysis of the structure.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-12-16 修改稿日期:2017-11-14 基金项目:国家自然科学基金青年科学基金项目(51208412);陕西省教育厅重点实验室项目(15JS049) 第一作者:冉红东(1977—),男,博士,副教授,主要从事钢结构稳定及抗震研究. E-mail: ranhd@163.com
更新日期/Last Update: 2018-02-11