1. Experimental study and design calculation for compressive strengths of cold formed thick-wall sections.
- Author
-
Hu, S D, Li, L X, Wang, X Y, and Chang, Q M
- Subjects
MATERIALS compression testing ,THICKNESS measurement ,STEEL tubes ,MECHANICAL behavior of materials ,STRENGTH of materials - Abstract
In order to investigate section capacities of thick-wall cold formed steel with square and rectangular hollow cross-sections, experiments were carried out on mechanical properties of the flat coupons, corner coupons, parent steel coupons and full section stub columns. Strain hardening of cold forming thick-wall cold formed sections was investigated. The stub column test strengths were compared with the design compressive strengths specified by the Australian/New Zealand and Chinese standards for the design of the cold formed steel structural members respectively. It has been shown that the strength predicted by the Australian/New Zealand standard using material properties and that forecasted by the Chinese standard based on the average design yield stress of the full section are a little conservative. The two mean strengths predicted by Australian/New Zealand standard based on the mean design yield stress and forecasted by the Chinese standard using material properties tests are identical, which are superior to the present thick-wall cold formed steel tubes because of their safety and economy. [ABSTRACT FROM AUTHOR] - Published
- 2011
- Full Text
- View/download PDF