《冷弯薄壁型钢结构技术规范》的发展

我国的《冷弯薄壁型钢结构技术规范》自1969年规范草案颁布至今已有40年,其间经历了3次修订,内容不断得到充实和完善。除介绍我国规范的发展过程、制修订过程的特点和规范的特色外,还重点介绍了几版规范的若干重要成果的发展,包括设计方法、冷弯效应、轴心受压构件的稳定系数、双轴对称截面压弯构件的稳定承载力、单轴对称开口截面轴心受压和压弯构件的换算长细比、受压板件的屈曲后强度和有效宽厚比、连接计算、薄壁型钢结构的防腐等。还讨论了规范修订的展望,提出了在规范再次修订时应主要考虑的三个方面：即应增加高强超薄壁冷弯型钢结构的设计与构造内容;应增加厚壁冷弯型钢结构的设计与构造内容;应增加冷弯薄壁型钢结构的抗震设计内容。

THE DEVELOPMENT OF TECHNICAL CODE OF COLD-FORMED THIN-WALL STEEL STRUCTURES

Chinese Technical Code of Cold-Formed Thin-Wall Steel Structures has been developed for 40 years, since the issuance of the National Standard of the first technical code of thin-wall steel structures in 1969. During the 40 years, the technical code has been revised three times and its contents and provisions were increased and improved. In this paper, besides the development of the Chinese code, the particular of the process of revisions and the special features of the code, the development of the important...