带可更换弧形板的自定心连接抗震性能试验研究

IF 4 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Journal of Constructional Steel Research Pub Date : 2024-09-24 DOI:10.1016/j.jcsr.2024.109044

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引用次数: 0

摘要

对新型可更换弧形连接板自定心梁柱连接的抗震性能进行了实验研究。研究设计并制作了一个普通螺栓连接节点、四个弧形连接板自定心节点和一个狗骨形连接板自定心节点试件，并对这六个节点试件进行了循环往复载荷试验。分析了各节点的破坏特征，并研究了新型节点的抗震性能。试验结果表明，新型节点在地震后的残余变形小，承载能力得到有效提高，具有良好的抗震性能。此外，新型节点的峰值强度与初始预应力和连接板厚度呈正相关，重新定位能力与初始预应力呈正相关。因此，通过优化钢筋初始预应力和连接板厚度的组合，可以进一步提高节点的抗震性能。

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Experimental study on seismic performance of self-centering connection with replaceable arc-shaped plate

An experimental study was conducted on the seismic performance of a new type of replaceable arc-shaped connecting plate self-centering beam-column connection. One ordinary bolted connection node, four arc-shaped connecting plate self-centering nodes, and one dog-bone shaped connecting plate self-centering node specimens were designed and fabricated for the study, and these six node specimens were subjected to cyclic reciprocating load tests. The failure characteristics of each node were analyzed, and the seismic performance of the new type of node was investigated. The test results indicate that the new type of node exhibits small residual deformation after an earthquake, and effective improvement in load-carrying capacity, demonstrating good seismic performance. Additionally, the peak strength of the new type of node is positively correlated with the initial prestressing and the connecting plate thickness, and the recentering capability is positively correlated with the initial prestressing. Therefore, by optimizing the combination of initial prestressing of the steel tendons and the connecting plate thickness, the seismic performance of the nodes can be further enhanced.

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来源期刊

Journal of Constructional Steel Research 工程技术-工程：土木

CiteScore

7.90

自引率

19.50%

发文量

550

审稿时长

46 days

期刊介绍： The Journal of Constructional Steel Research provides an international forum for the presentation and discussion of the latest developments in structural steel research and their applications. It is aimed not only at researchers but also at those likely to be most affected by research results, i.e. designers and fabricators. Original papers of a high standard dealing with all aspects of steel research including theoretical and experimental research on elements, assemblages, connection and material properties are considered for publication.