(1 中冶东方工程技术有限公司，包头 014010； 2 中国钢结构协会，北京 100088)
［摘要］对目前钢管结构设计中合理选用钢管材料的一些问题进行了分析与评述。包括对钢管标准与设计规范有关规定的理解和应用，对不同类别钢管性能特点的比较分析，不同成型工艺对钢管性能影响及冷作硬化与残余应力影响的分析等。对工程中合理选用钢管材料提出了建议。
［关键词］钢管结构；无缝钢管；焊接钢管；径厚比；残余应力；延性；成型工艺
Discussion on reasonable selection of materials for the structure with steel hollow section
Liu Yingchun1，Chai Chang2(1 Beris Engineering and Research Corporation，Baotou 014010，China；2 China Specialistic Committee of China Steel Contruction Society，Beijing 100088，China)
Abstract:Some issues on reasonable selection of materials for the structure with steel hollow section were analyzed and commented, involving the understanding and application on relevant regulations of steel tube standards and design specifications, comparatively analysis of the performance of various steel tubes, influence of different forming technologies on steel tube performance, and effect of coldwork hardening on tube materials, as well as the analysis of residual stress, etc. Some design suggestions on reasonable selection of steel tube materials in the engineering are proposed.
Keywords:steel tube structure；seamless steel tube；welded steel tube；diameterthickness ratio；residual strees；ductility；forming process
作者简介：刘迎春，高级工程师，Email：liuyingchun188@126.com。