(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)

［提要］钢檩条、钢墙梁已广泛应用于以轻型板材围护的工业与民用建筑中，为便于设计应用，中国建筑标准设计研究院组织编制了标准图集《钢檩条、钢墙梁》(SG521-1～4)。该标准图集采用了檩条允许线荷载的表示方法分别列出了各荷载效应下檩条的允许线荷载值。对该图集的内容与应用范围作了较详细的介绍与说明，包括钢材牌号、截面类型与规格、荷载条件与适用范围、计算假定与公式、相关技术规范及设计选用表、有关布置图与详图等内容与应用方法,同时对钢檩条和钢墙梁的合理设计提出了建议。

［关键词］钢檩条  钢墙梁  冷弯C形钢  冷弯Z形钢

Introduction of Atlas of Steel Purlin and Girt/Liu Yingchun1，Chai Chang2 (1 Beris Engineering and Research Corporation, Baotou 014010, China；2 China Steel Construction Society, Beijing 100088, China)

Abstract:Steel purlin and girt have been widely used in industrial and civil buildings with profited sheet roof and wall. Atlas of steel purlin and girt is established by China Institute of Building Standard Design & Research. Some explanations on its applied range and contents are introduced, which include the appropriate structural steel, section and designation, design lode, assumes and formulas of calculation, design lists of section selection, the layout drawings and detail drawings,and so on. Meantime, some reasonable design suggestions are given.

Keywords:steel purlin; steel girt; coldformed C section; coldformed Z section