Experimental investigation on bending and shear performance of two-way aluminum alloy gusset joints

被引：44
|
作者：
Shi, Mingzhe [1 ]
Xiang, Ping [1 ]
Wu, Minger [1 ]
机构：
[1] Tongji Univ, 1239 SiPing Rd, Shanghai, Peoples R China
来源：
THIN-WALLED STRUCTURES | 2018年 / 122卷
基金：
中国国家自然科学基金;
关键词：
Aluminum alloy gusset joint; Semi-rigid behavior; Failure modes; Experimental study; RETICULATED SHELL STRUCTURES; SUSPEN-DOME STRUCTURES; LATTICED SHELLS; AXIAL FORCE; BEHAVIOR; SYSTEMS; DESIGN;
D O I：
10.1016/j.tws.2017.10.002
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Two-way aluminum alloy gusset joints (AAGJs) are considered to be employed in cable-stiffened aluminum alloy single-layer reticulated shell structures meshed with quadrilateral grids. In this study, a series of experiments on six AAGJs with and without shear connectors were conducted to investigate their semi-rigid behavior. Two joints were subjected to pure bending moments and others to shear loads, then their corresponding failure modes were investigated which were mainly beam rupture, beam web buckling, and bolt failure. The moment-rotation curves, shear load-rotation curves, and strain-load curves were also obtained, indicating that AAGJs are typical semi-rigid joints. Shear connectors can optimize the load transferring path and improve ductility under bending moment while enhancing shear performance significantly. A simplified theoretical AAGJ model was also established and parameterized according to the experimental results.
引用
收藏
页码：124 / 136
页数：13
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