Research on Mechanical Behaviours of New Joints of Single-Layer Reticulated Shells

CAI Jian; WANG Yongqi; CHEN Qingjun; JIANG Zhengrong; QIAN Quan; ZUO Zhiliang

doi:10.3969/j.issn.0258-2724.20170575

Volume 54 Issue 1

Feb. 2019

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Journal of Southwest Jiaotong University > 2019 > 54(1): 145-153.

CAI Jian, WANG Yongqi, CHEN Qingjun, JIANG Zhengrong, QIAN Quan, ZUO Zhiliang. Research on Mechanical Behaviours of New Joints of Single-Layer Reticulated Shells[J]. Journal of Southwest Jiaotong University, 2019, 54(1): 145-153. doi: 10.3969/j.issn.0258-2724.20170575

Citation:

CAI Jian, WANG Yongqi, CHEN Qingjun, JIANG Zhengrong, QIAN Quan, ZUO Zhiliang. Research on Mechanical Behaviours of New Joints of Single-Layer Reticulated Shells[J]. Journal of Southwest Jiaotong University, 2019, 54(1): 145-153. doi: 10.3969/j.issn.0258-2724.20170575

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Research on Mechanical Behaviours of New Joints of Single-Layer Reticulated Shells

doi: 10.3969/j.issn.0258-2724.20170575

Received Date: 25 Jul 2017
Rev Recd Date: 18 Jan 2018

Available Online: 16 May 2018

Publish Date: 01 Feb 2019

Abstract

Abstract

A new kind of welded end-plate joint for a reticulated shell with a rectangular cross-section rod was proposed. To investigate the mechanical behaviour of the proposed joint, a test model at a scale of 1∶2 was designed and subjected to static loading tests. Load-strain curves, load-displacement curves, and failure modes were obtained, showing the joint’s performance to be low stresses at a reasonable level of detail. After validating the results of numerical models, the effect of the ratio of end-plate thickness (t₁) to tube thickness (t₂), the angle between the tubes α and the out-of-plane angle β on distortion of the joint, failure mode, and strain distribution were analysed. The results showed that the joint possessed a good load-bearing capacity; the angle α has a significant impact on this index, with 60° being a critical point. On the basis of the finite element analysis results, a formula that could provide a reference for design work was introduced for calculating the bearing capacity of the joint.
- reticulated shell,
- welded end-plate joint,
- mechanical behaviour,
- static load,
- finite element analysis

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References(16)

References

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