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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

39卷

期数:

2022年06期

页码:

154-162

栏目:

防灾减灾工程

出版日期:

2022-11-30

文章信息/Info

Title:

Experimental Study on Seismic Performance of Aluminum Alloy Column Ferrule Joints for Glass Curtain Wall

文章编号:

1673-2049(2022)06-0154-09

作者:

刘 艳^1,2,肖建春^1,2,胡天杰^1,2,金 束^1,2,陈 靖^1,2,张 兵^1,2

(1. 贵州大学 空间结构研究中心,贵州 贵阳 550025; 2. 贵州大学 贵州省结构工程重点实验室,贵州 贵阳 550025)

Author(s):

LIU Yan^1,2, XIAO Jian-chun^1,2, HU Tian-jie^1,2, JIN Shu^1,2, CHEN Jing^1,2, ZHANG Bing^1,2

(1. Research Center of Space Structures, Guizhou University, Guiyang 550025, Guizhou, China; 2. Key Laboratory of Structural Engineering of Guizhou Province, Guizhou University, Guiyang 550025, Guizhou, China)

关键词:

抗震性能;  拟静力试验;  数值分析;  铝合金立柱插芯节点;  滞回曲线;  骨架曲线。

Keywords:

seismic performance;  pseudo-static test;  numerical analysis;  aluminum alloy column ferrule joint;  hysteresis curve;  skeleton curve

分类号:

TU395

DOI:

10.19815/j.jace.2021.09042

文献标志码:

A

摘要:

为研究玻璃幕墙铝合金立柱插芯节点在地震作用下的破坏特征和抗震性能,设计了4组铝合金立柱插芯节点试件(立柱长度均为2 800 mm,插芯长度分为250 mm和300 mm两种),并进行了低周往复加载试验,得到了试件节点的破坏形态、滞回曲线和骨架曲线,分析了节点的破环机理和滞回耗能特性。基于试验结果,采用几何、材料与接触非线性有限元法对立柱插芯节点进行分析。结果表明:滞回曲线、骨架曲线的有限元结果与试验结果吻合较好,验证了有限元模拟节点抗震性能的有效性; 两种插芯长度节点的破坏特征一致,均为鼓曲变形来耗散地震能量; 两种插芯长度节点的滞回曲线呈现出明显的反Z字形,捏缩现象较明显; 试验与有限元计算的包络曲线耗能比的范围为31.94%～39.72%,说明试件节点的耗散地震能力强; 节点的抗震性能与插芯长度有明显的关系。

Abstract:

In order to study the failure characteristics and seismic performance of aluminum alloy column ferrule joints of glass curtain wall under earthquakes, four groups of aluminum alloy column ferrule joint specimens(column length was 2 800 mm, core length was divided into 250 mm and 300 mm)were designed, and low-cycle reciprocating loading tests were carried out. The failure modes, hysteresis curves and skeleton curves of the specimens were obtained, and the failure mechanism and hysteretic energy dissipation characteristics of the joints were analyzed. Based on the test results, the geometric, material and contact nonlinear finite element method was used to analyze the column socket joints. The results show that the finite element results of hysteresis curve and skeleton curve are in good agreement with the experimental results, which verifies the effectiveness of finite element simulation of seismic performance of joints. The failure characteristics of the two ferrule length nodes are the same, both of which are buckling deformation to dissipate seismic energy. The hysteresis curves of the two core length nodes show obvious inverse Z shape, and the pinch phenomenon is obvious. The range of energy dissipation ratio of envelope curve calculated by test and finite element method is 31.94%-39.72%, which shows that the dissipation seismic capacity of specimen joints is strong. The seismic performance of the joint is obviously related to the length of the plug.

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备注/Memo

备注/Memo:

收稿日期:2021-09-20
基金项目:国家自然科学基金项目(50978064/Z091015); 贵州省自然科学基金项目(黔科合基础[2017]1036)
作者简介:刘 艳(1994-),女,贵州毕节人,工学硕士研究生,E-mail:1540317223@qq.com。通信作者:肖建春(1967-),男,湖北武汉人,教授,博士研究生导师,工学博士,E-mail:424157338@qq.com。

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更新日期/Last Update: 2022-12-20