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Study on seismic performance of PEC column fabricated with crimping thin-walled built-up section-steel beam joint with BRS plate connection
Author(s): 
Pages: 47-53
Year: Issue:  4
Journal: Journal of University of Science and Technology of Suzhou(Engineering and Technology)

Keyword:  新型PEC柱部分自复位连接BRS板抗震性能试验研究有限元分析;
Abstract: 为了更好满足梁柱连接的抗震性能需求,提出采用T形件预拉对穿高强螺栓,并且在梁有限长度范,内设置预拉杆实现连接部分自复位和BRS板加以辅助耗能的PEC柱弱轴-钢梁节点部分自复位连接形式,并对其进行低周循环荷载试验研究和利用有限元软件ABAQUS 6.11进行模拟,对比分析其滞回性能、自复位功效、耗能能力,验证了有限元模型的合理性.研究结果显示:预拉对穿螺栓的设置使节点域充分实现了混凝土斜压带传力,降低了对钢柱腹板的抗剪要求;试件在达到中震下梁柱连接转动限值0.02 rad时,主体构件梁、柱仍处于弹性状态;在整个加载过程中连接节点BRS板耗能充分,且残余转角均小于小震层间侧移角限值0.005 rad,表明新型卷边PEC柱-钢梁中节点部分自复位连接具有较优的自复位效果和耗能能力.
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