铰接方钢管组合异形柱框架抗震性能研究
Study on the Seismic Behavior of Articulated Special-Shaped Composite Column Frame Composed of Square Steel Tube
周婷 1肖潇 2陈志华 3王子刚2
作者信息
- 1. 天津大学建筑学院,天津 300072
- 2. 天津大学未来技术学院,天津 300072
- 3. 天津大学建筑工程学院,天津 300072
- 折叠
摘要
为解决村镇住宅体系存在的装配式程度及标准化程度较低、现场焊接工作繁多、室内建筑面积浪费等问题,提出了一种铰接方钢管组合异形柱框架体系.该体系中异形柱采用3根空钢管通过钢板与加劲肋组合而成的L形柱,梁柱节点为腹板螺栓连接的铰接节点.通过拟静力试验对该体系的抗震性能进行研究.研究结果表明:相比于铰接钢管混凝土组合异形柱,铰接空钢管组合异形柱框架体系先于梁端出现转角,最后破坏模式为柱脚破坏,具有更优良的抗震耗能和更缓慢的强度与刚度退化,并通过对比刚接节点和铰接节点的骨架曲线,发现节点刚接程度对结构整体的抗侧刚度影响较大.
Abstract
In order to solve the problems of low degree of assembly type and standardization,numerous welding work on site and waste of indoor building area in rural residential system,this paper proposes an articulated square steel pipe composite special-shaped column frame system.In the system,the special-shaped column is an L-shaped column formed by combining three hollow steel pipes with steel plates and stiffeners.The beam and column joints are hinged joints connected by web bolts.In this paper,the seismic performance of the system is studied.by conducting pseudo-static tests.The results show that by comparing the articulated concrete-filled steel tubular composite special-shaped column,the articulated hollow steel tubular composite special-shaped column frame system rotates before the beam end,and the failure mode is the column base failure,which has better seismic energy dissipation and slower strength and stiffness degradation.By comparing the skeleton curves of rigid joints and articulated joints,it is found that the stiffness degree of joints has a larger influence to the overall lateral stiffness of the structure.
关键词
铰接节点/异形柱框架结构/拟静力试验/村镇住宅/抗震性能Key words
articulated joint/special-shaped column frame structure/pseudo static test/rural areas building/seismic behavior引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据