Experimental Study on the Ultimate Bearing Capacity of Partially Overlapped CHS-to-SHS Welded N-Joints

Xing Ping Shu; Zhi Shen Yuan; Zheng Rong Zhu; Yao Yao

doi:10.4028/www.scientific.net/AMR.368-373.473

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 368-373Experimental Study on the Ultimate Bearing...

Experimental Study on the Ultimate Bearing Capacity of Partially Overlapped CHS-to-SHS Welded N-Joints

Abstract:

This paper presents the experimental and numerical results of the ultimate bearing capacity of partially overlapped tubular N-joints, which have circular hollow section (CHS) brace members welded to a square hollow section (SHS) chord member. Two partially overlapped N-joints were tested to failure under overlapping brace axial loading and chord axial loading. The failure mode of specimen N1 was the overlapping brace local bucking, and the failure mode of specimen N2 was the chord face plastification with chord side wall buckling. Meanwhile, weld fracture occurred on both specimens. Then, making use of finite element package program ANSYS, in which twenty nodes solid element was employed and the weld was simulated, elastic-plastic large deflection finite element analysis of the experimental joints was conducted. The experimental data were compared with the results acquired by finite element analysis and it was proved that ANSYS is feasible to simulate the connecting weld and analyze the static behavior of partially overlapped CHS-to-SHS welded N-joints.

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

473-477

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.473

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Online since:

October 2011

Authors:

Xing Ping Shu, Zhi Shen Yuan, Zheng Rong Zhu, Yao Yao

Keywords:

Experimental Study, Finite Element Analysis (FEA), Tubular N-Joint, Ultimate Bearing Capacity, Weld

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