延性强化型可恢复功能装配式开洞槽钢梁柱节点抗震性能数值研究

兰涛; 申存杰; 李然; 姜子钦; 程魁魁

doi:10.13204/j.gyjz202003008

延性强化型可恢复功能装配式开洞槽钢梁柱节点抗震性能数值研究

doi: 10.13204/j.gyjz202003008

兰涛¹,
申存杰²,
李然^1,2,
姜子钦^2, ,,
程魁魁²

1. 中国船舶重工集团国际工程有限公司, 北京 100021;
2. 北京工业大学建筑工程学院, 北京 100124

基金项目:

中国船舶重工集团科技创新与研发项目（201815K）；国家自然科学基金项目（51608014）。

详细信息

作者简介:
兰涛,男,1976年出生,研究员,博士生导师。

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出版历程
- 收稿日期: 2019-12-10

NUMERICAL STUDY ON SEISMIC BEHAVIOR OF EARTHQUAKE-RESILIENT DUCTILITY-REINFORCED PREFABRICATED OPENING-WEB STEEL CHANNEL BEAM-COLUMN JOINT

1. CSIC International Engineering Co., Ltd., Beijing 100021, China;
2. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 基于损伤控制和防屈曲设计理念，提出了一种延性强化型可恢复功能装配式开洞槽钢梁柱节点。采用有限元数值模拟方法对4组算例的抗震性能进行了分析研究，重点研究了翼缘内盖板厚度、狗骨削弱段宽度及螺栓数量等参数对节点抗震性能的影响，并获得了该节点的滞回曲线、破坏模式、应力分布及盖板相对位移曲线等性能指标。研究结果表明，该节点拥有良好的承载性能和抗震性能；塑性铰可有效被转移到翼缘盖板上，保证梁柱等主要构件基本处于弹性，所以震后可通过更换连接装置来实现节点的可恢复功能；槽型腹板连接板可有效抑制翼缘内盖板的鼓曲变形，起到防屈曲的约束效果，提高节点的延性；此外，翼缘内盖板厚度、狗骨削弱段宽度及螺栓数量等参数对节点抗震性能影响较大，需合理设置。
- 可恢复功能 /
- 开洞槽钢梁 /
- 翼缘内盖板 /
- 抗震性能 /
- 有限元分析
Abstract: Based on the ideas of damage control and buckling-restrain, the paper proposed a kind of earthquake-resilient ductility-reinforced prefabricated opening-web steel channel beam-column joint. The seismic behavior of 4 examples was studied by finite element method. The hysteretic curves, failure modes, stress distribution and relative displacement curves of the plates were obtained. The influence of the parameters such as the thickness of the flange cover plates, the width of the dog bone weakening section and the number of bolts on the seismic behavior of the joint was emphatically studied. The results showed that the bearing capacity and seismic behavior of the joint were good. The plastic hinge could be transferred to the flange cover plates effectively, at the same time, the main components such as beam and column were basically elastic at the elastic stage. Therefore, the function of joint could be restored by replacing the connecting device after earthquake. The U-shaped web connecting plates could effectively restrain the buckling deformation of the inner flange cover plates, and improve the ductility of the joint. In addition, parameters which had a great influence on the seismic performance of joints such as thickness of inner flange cover plates, width of dog bone weakening section and number of bolts should be designed reasonably.
- earthquake-resilience /
- opening-web steel channel beam /
- inner flange cover plate /
- seismic behavior /
- finite element analysis

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参考文献(14)

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