（1 唐山都市工程项目管理有限公司，唐山 063009； 2 唐山学大科技有限公司，唐山 063009；3 唐山钢铁设计研究院，唐山 063009）

［摘要］结合对相关规范条款的理解，对钢结构设计中轻钢屋面活荷载的取值问题给出解答；对受力构件的应力、侧向位移、长细比、耗钢量、布置方式、构造连接方式等方面提出新的认识，为其在钢结构设计的实际应用提供建议，以达到节约钢材的目的。

［关键词］门式刚架； 轻钢屋面活荷载； 宽厚比； 长细比； 高厚比； 弹性设计

中图分类号：TU391文献标识码：A文章编号：1002-848X(2018)04-0064-03

Common problems analysis on the design of light steel structure

Zhang Lei1, Gao Wei2, Wang Yuhua3

(1 Tangshan City Engineering Project Management Co., Ltd., Tangshan 063009, China; 2 Tangshan Xueda Education Technology Co., Ltd., Tangshan 063009, China; 3 Tangshan Iron and Steel Design Institute, Tangshan 063009, China)

Abstract:Combining with the understanding of the relevant specification clause, the light steel roof live load value problem of steel design was answered. A new understanding of the stress components, stress, lateral displacement, slenderness ratio, steel consumption structure, layout and connection modes was proposed. Suggestions for the practical application of structural design in steel were put forward to achieve the purpose of saving steel.

Keywords:portal frame; live load values of light steel roof; width-to-thickness ratio; slenderness ratio; height-to-thickness ratio;  elastic design

作者简介：张雷，硕士，工程师，二级注册结构工程师，Email:zhangleiyan178.com@163.com。