Flexural behavior of double- and single-layer aluminum alloy gusset-type joints. (November 2019)

• Record Type: Journal Article
• Authors: Liu, Hongbo; Ying, Jiaojie; Meng, Yi; Chen, Zhihua
• Is Part Of: Thin-walled structures. Volume 144(2019)
• Publication Date: 2019-11
• Subjects: Aluminum alloy reticulated shell -- Gusset-type joint -- Bolt type -- Flexural behavior -- Experimental study; Thin-walled structures -- Periodicals; 690.1
• DOI: 10.1016/j.tws.2019.106263
• Languages: English
• ISSNs: 0263-8231

Abstract

Abstract: A gusset-type joint (GJ), which comes in single and double layers, is a common joint form in aluminum alloy reticulated shells. Existing studies on the mechanical properties of aluminum alloy GJs (AAGJ) focused mainly on single-layer AAGJs, whereas the mechanical properties of double-layer AAGJs remain unexplored. In this research, the flexural behavior of single- and double-layer AAGJs in the Caofeidian Coal Bunker was experimentally studied through eight full-scale joint tests. The failure mode, rigidity, internal stress distribution, stress transmission mode, and ultimate bearing capacity of the tested joints were determined. Contrast analyses were performed between the in-plane and out-of-plane flexural behaviors of a single-layer joint, as well as between the flexural behaviors of GJs with Huck and stainless steel bolts and between those of single-layer and double-layer GJs. Results if this study provide references for the design of GJs, especially double-layer ones. Highlights: The flexural behavior of single- and double-layer aluminum alloy gusset-type joint are tested. The flexural rigidity of GJ with stainless steel bolts is 1.21 times that of joint with Huck bolts. The flexural rigidity of the double-layer GJ is 2.61 times that of the single one. The ultimate bearing capacity of double-layer GJ increased by 118.07% compared with single one.