外贴背钩式石材幕墙节点受力性能试验研究

叶勇; 杨士萱; 陈鸿涛; 郭子雄

doi:10.3724/j.gyjzG23091701

外贴背钩式石材幕墙节点受力性能试验研究

doi: 10.3724/j.gyjzG23091701

1. 华侨大学土木工程学院, 福建厦门 361021;
2. 华侨大学福建省结构工程与防灾重点实验室, 福建厦门 361021

基金项目:

福建省科技计划高校产学合作项目(2020Y4011)。

国家自然科学基金项目(52178485)

详细信息

作者简介:
叶勇,男,1985年出生,博士,教授,主要从事钢-混凝土组合结构、石材幕墙结构方向的研究。电子信箱:qzyeyong@hqu.edu.cn

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出版历程
- 收稿日期: 2023-09-17
- 网络出版日期: 2024-11-06

Experimental Research on Mechanical Properties of Stone Curtain Wall Connection with Attached Stone Back Hook

1. College of Civil Engineering, Huaqiao University, Xiamen 361021, China;
2. Key Laboratory for Structural Engineering and Disaster Prevention of Fujian Province, Huaqiao University, Xiamen 361021, China

摘要

摘要: 提出外贴L形背钩式石材幕墙连接节点形式。为研究该连接节点的受力性能,进行了81个外贴背钩式石材幕墙节点试件的平面外加载试验,分析不同背钩厚度、背钩与石板黏结长度、石材面板厚度条件下连接节点的破坏形态和承载力。试验结果表明:连接节点的破坏形态有背钩转角处断裂、黏结处背钩拉裂、石材面板断裂三种,均呈现脆性特征,且破坏前的变形不明显;当石材面板厚度一定时,增大背钩厚度、背钩与石板黏结长度可提高连接节点的极限承载力,直至发生石材面板断裂破坏,实现"强节点"要求。通过受力分析,提出不同破坏形态对应的外贴背钩式石材幕墙节点的平面外承载力计算方法,并给出实际工程可采用的外贴背钩式节点构造建议。
- 石材幕墙 /
- 连接节点 /
- 背钩式节点 /
- 受力性能 /
- 试验研究
Abstract: A type of stone curtain wall connection with attached L-shaped stone back hook is put forward. In order to investigate the mechanical properties of this type of connection, out-of-plane loading tests were carried out on 81 specimens, and the failure mode and bearing capacity of the connections with different hook thicknesses, hook-curtain wall panel bond widths, and thicknesses of curtain wall panel were analyzed. The experimental results showed that, three different types of failure modes, i.e., fracture of back hook at corner, facture of back hook near bonding area, and fracture of curtain wall panel, would occur for the connection. All the failure modes exhibited brittle characteristic, and the deformation of connection before failure was unobvious. When the thickness of curtain wall panel was kept constant, increasing the hook thickness and hook-curtain wall panel bond widths could improve the ultimate bearing capacity of the connection until the fracture of curtain wall panel occured, that is, the "strong joint" principle was achieved. Based on force analysis, calculation methods for the out-of-plane bearing capacities of connections under different failure modes were proposed, and configuration suggestions were also obtained.
- stone curtain wall /
- connection /
- back hook connection /
- mechanical properties /
- experimental investigation

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参考文献(22)

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