|Table of Contents|

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

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

Issue:
2022年06期
Page:
154-162
Research Field:
防灾减灾工程
Publishing date:

Info

Title:
Experimental Study on Seismic Performance of Aluminum Alloy Column Ferrule Joints for Glass Curtain Wall
Author(s):
LIU Yan1; 2;  XIAO Jian-chun1; 2;  HU Tian-jie1; 2;  JIN Shu1; 2;  CHEN Jing1; 2;  ZHANG Bing1; 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)
Keywords:
seismic performance;  pseudo-static test;  numerical analysis;  aluminum alloy column ferrule joint;  hysteresis curve;  skeleton curve
PACS:
TU395
DOI:
10.19815/j.jace.2021.09042
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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Last Update: 2022-12-20