Performance of a novel built-up column composed of four cold-formed tubes-Reference-Cited by-同舟云学术

Performance of a novel built-up column composed of four cold-formed tubes

Published:2020-10 Issue:10 Volume:173 Page:730-745
ISSN:0965-0911
Container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings
language:en
Short-container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings

Author:

Chen Xiaomiao¹,Xia Junwu²^ORCID,Xu Bo³,Ma Renwei³

Affiliation:

1. PhD candidate, Key Laboratory of Deep Geotechnical and Underground Engineering, China University of Mining and Technology, Xuzhou, China; School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, China

2. Professor, Key Laboratory of Deep Geotechnical and Underground Engineering, China University of Mining and Technology, Xuzhou, China; Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou, China (corresponding author: , )

3. PhD candidate, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, China

Abstract

A novel built-up column (BUC) under axial compression was experimentally investigated. The BUC consisted of four cold-formed thin-walled rectangular tubes assembled with several V-type or I-type connectors by self-tapping screws. Based on the axial loading tests of ten novel BUCs, the compressive stability of BUCs was studied, including the ultimate bearing capacity and failure mode. The relationships between load and axial shortening, lateral displacement and strain of the tubes were measured in tests. The test results were compared with predictions of codes (AISI S100-07 and GB 50018-2002) and a modified design method was developed. The results showed that the BUCs composed of four rectangular tubes assembled with V-type connectors and I-type connectors are different from classic latticed columns and battened columns in the calculation model of the transverse displacement produced by shear force. The predicted values calculated according to the suggested design method were found to be in good agreement with the experimental values of the novel BUC.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jstbu.18.00053

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