[1]冉红东,蔡洲鹏,冯俊翔,等.带RC楼板双槽钢组合截面构件恢复力模型[J].西安建筑科技大学学报(自然科学版),2021,53(01):15-23.[doi:10.15986/j.1006-7930.2021.01.003]
　RAN Hongdong,CAI Zhoupeng,FENG Junxiang,et al.Restoring force model of steel doublechannel buildup members with RC slabs[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2021,53(01):15-23.[doi:10.15986/j.1006-7930.2021.01.003]
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带RC楼板双槽钢组合截面构件恢复力模型()
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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:
53
期数:
2021年01期
页码:
15-23
栏目:
出版日期:
2021-02-28

文章信息/Info

Title:
Restoring force model of steel doublechannel buildup members with RC slabs
文章编号:
1006-7930(2021)01-0015-09
作者:
冉红东; 蔡洲鹏; 冯俊翔; 等
(西安建筑科技大学 土木工程学院,陕西 西安 710055)
Author(s):
RAN Hongdong;  CAI Zhoupeng;  FENG Junxiang;  et al
(School of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China)
关键词:
RC楼板;  双槽钢组合截面构件;  拟静力试验;  骨架曲线;  恢复力模型
Keywords:
reinforced concrete slab;  steel double-channel built-up member;  quasi-static test;  skeleton curve;  restoring force model
分类号:
TU398+.9; TU317+.1
DOI:
10.15986/j.1006-7930.2021.01.003
文献标志码:
A
摘要:
为建立带钢筋混凝土(RC)楼板双槽钢组合截面构件的恢复力模型,对4个带RC楼板足尺试件进行了常轴力和往复弯曲共同作用下的拟静力试验,研究了填板间距、有无加劲肋和腹板高厚比等参数对试件抗震性能的影响,并根据试件滞回特性提出了构件恢复力模型.结果表明:各试件的滞回曲线较为饱满,表明其具有良好的耗能能力和延性; 减小填板间距,对构件的承载力和刚度影响较小,但减小腹板高厚比,可显著提高构件的承载力和刚度; 提出的构件恢复力计算模型与试件的试验曲线吻合较好,可用于结构的弹塑性分析.
Abstract:
In order to set up the restoring model of steel double-channel build-up members with the reinforced concrete(RC)slabs, the pseudo-static tests of four specimens with RC slabs under the constant axial force and reversed cyclic bending were carried out. The influence of stitch spacing, stiffener in plastic hinge region and web depth-thickness ratio on the seismic behavior of specimens were investigated. According to the hysteretic characteristics of specimens, the restoring force model of members was put forward. Results show that all hysteresis curves are stable, with excellent energy dissipation capacity and ductility. With the decrease of stitch spacing, the strength and stiffness of specimens change insignificantly. But the strength and stiffness of the specimens can be significantly improved by reducing the web depth-thickness ratio. The calculation curve of force restoring model is in good agreement with the experimental curve. Therefore, it could be used for the elastic-plastic analysis of the special staggered truss frame structure.

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备注/Memo

备注/Memo:
收稿日期:2020-06-21 修改稿日期:2021-01-14
基金项目:国家自然科学基金资助项目(51208412); 陕西省科技厅自然科学基础研究计划基金资助项目(2018JM5123)
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性能研究.E-mail:ranhd@163.com.
更新日期/Last Update: 2021-02-28