可恢复功能装配式梁柱中柱节点抗震性能研究（英文）

发布时间：2018-08-26 07:37

【摘要】：目的:提出一种震后功能可快速恢复的装配式中柱节点,并建立其设计理论;考察装配式中柱节点的抗震性能及震后修复性能,并提出设计建议。创新点:提出一种可快速恢复震后功能的装配式中柱节点;2.提出装配式中柱节点设计理论,并通过数值手段对其合理性进行校核;3.试验研究考察基础试件的抗震性能及震后修复性能。方法:1.通过理论分析手段建立装配式中柱节点设计理论;2.利用数值模拟手段通过4组8个算例来验证节点设计理论,并对节点抗震性能进行数值研究;3.对基础试件进行低周往复荷载试验研究及修复试验研究,进一步验证设计理论的合理性,并考察节点的抗震性能及震后修复性能。结论:1.提出的设计理论可准确地预测装配式中柱节点的屈服荷载;2.设计合理的装配式中柱节点具有良好的承载性能及滞回特性,可满足结构震后功能修复要求;3.翼缘连接盖板厚度和材性、中间螺栓间距和梁段间隙参数对节点抗震性能影响较大,需合理设置。
[Abstract]:Aim: to put forward a kind of prefabricated mid-column joints which can be recovered quickly after earthquake, and to establish its design theory, to investigate the aseismic performance and post-earthquake repair performance of prefabricated mid-column joints, and to put forward some design suggestions. Innovation: a prefabricated mid-column node which can quickly recover post-earthquake function is proposed. The design theory of prefabricated mid-column joints is put forward, and its rationality is checked by numerical method. The seismic behavior and repair performance of foundation specimens were investigated. Method 1: 1. By means of theoretical analysis, the design theory of prefabricated mid-column joints is established. The design theory of joints is verified by four groups of eight examples, and the seismic behavior of joints is studied numerically. In order to verify the rationality of the design theory, the seismic behavior and post-earthquake repair performance of the joints were investigated by low-cycle reciprocating load test and repair test. Conclusion 1. The proposed design theory can accurately predict the yield load of the assembled mid-column joints. The design of the prefabricated mid-column joints has good load-bearing performance and hysteretic characteristics, which can meet the functional repair requirements of the structure after the earthquake. The thickness and material properties of the cover plate of flange connection, the spacing of intermediate bolt and the clearance parameter of beam segment have great influence on the seismic performance of the joint, so it is necessary to set up reasonably.
【作者单位】： College
【基金】：supported by the National Key Basic Research and Development Program of China(No.2016YFC0701504) the National Natural Science Foundation of China(No.51608014) the Natural Science Foundation of Beijing,China(No.8174060) the China Postdoctoral Science Foundation(No.2017T100020)
【分类号】：TU352.11

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