摘要
为解决异形柱节点的薄弱问题,在相同尺寸及配筋条件下对槽形钢骨增强的核心区异形柱节点和未被增强的异形柱节点进行拟静力试验研究,对比分析异形柱节点的破坏特征、承载能力、变形能力、滞回曲线、延性、刚度退化、累积损伤等抗震性能指标。研究结果表明:在异形柱节点核心区加入槽形钢骨可以改善节点的破坏形态,改善异形柱节点滞回特性,提高异形柱节点变形能力及承载能力,减缓异形柱节点刚度退化,减轻异形柱节点累积损伤程度,显著提高节点的抗震性能。
In order to solve the weakness of joints with specially shaped shaped columns with or without groove-shaped steel reinforcement were columns, joints of specially tested under the low cyclic loading. The joints had the same dimensions and reinforcement. The damage characteristics, bear- ing capacity, deformation, hysteretic curve, ductility, stiffness degradation and cumulated of the joints were compared. It was shown that the shaped damage damage characteristics of the joint with groovesteel reinforcement and the hysteretic characteristics are improved; the bearing capacity and stiffness are increased; the rigidity degradation and the cumulated damage are delayed, and the seismic performance is enhanced dramatically.
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2014年第1期64-70,共7页
Journal of Guangxi University（Natural Science Edition）
基金
河北省自然科学基金资助项目(E2011202013)
河北省建设科技研究计划项目(20122027)
河北省高等学校科学技术研究青年基金项目(Q2012083)
关键词
异形柱
节点
低周往复荷载
槽形钢骨增强
抗震性能
specially shaped column
joint
low cyclic loading
groove-shaped steel reinforcement
seismic performance
