Experimental Research on Bearing Capacity of Cold-formed Steel Double-Shaft Built-up Long Columns

DOI

10.2991/iccet-15.2015.147How to use a DOI?

Keywords

Cold-formed steel, built-up sections, long columns, experimental research, effective width

Abstract

Cold-formed steel built-up columns are the main components in cold-formed steel framing residential buildings, however, there are short of reliable experimental and theoretical study on cold-formed steel built-up columns in China. Technical code of cold-formed thin-wall steel structures (GB50018-2002) in China only consists of the axial compression test of single component. In order to investigate the mechanical behavior of built-up members, two groups of cold-formed steel double-shaft built-up long columns were tested under axial compression load. The load capacity and the failure characteristic of the specimens were analyzed in this paper. The wall thickness of specimens are all 1.6mm, the length of all the columns are 3m.The results of experimental research show that using effective width method of Chinese code GB 50018-2002 and AISI to calculate the load capacity of cold-formed steel built-up long column is safe. The failure modes of all specimens are flexural bucking.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qun Wang
AU  - Xin’E Yan
AU  - Qian Zhang
PY  - 2015/11
DA  - 2015/11
TI  - Experimental Research on Bearing Capacity of Cold-formed Steel Double-Shaft Built-up Long Columns
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 788
EP  - 794
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.147
DO  - 10.2991/iccet-15.2015.147
ID  - Wang2015/11
ER  -