疲劳.焊接中空部件连接件用设计程序.推荐

[中文适用范围]： 本国际标准提供了关于由圆形或方形（带或不带矩形弦杆）空心截面组成的支撑结构中，未加劲焊接节点在疲劳载荷下的设计和分析建议。本国际标准适用于满足以下条件的结构：a) 满足空心截面的质量要求（见附录 A）；b) 符合推荐的焊缝细节（见附录 B）；c) 采用允许的钢级（见 1.2）；d) 具有空心截面节点（见 1.3）；e) 具有：1) 厚度在 4 mm 至 16 mm 之间的方形或矩形空心截面，或 2) 厚度在 4 mm 至 50 mm 之间的圆形空心截面；f) 应力范围为“热点”应力范围；g) 具有相同的支管（分支）成员。 [外文原描述]： ISO 14347:2008 gives recommendations for the design and analysis of unstiffened, welded, nodal joints in braced structures composed of hollow sections of circular or square shape (with or without rectangular chord) under fatigue loading. ISO 14347:2008 applies to structures: fulfilling quality requirements for hollow sections; complying with recommended weld details; employing permitted steel grades; having hollow section joints; having either square or rectangular hollow sections with a thickness between 4 mm and 16 mm, or circular hollow sections with a thickness between 4 mm and 50 mm; having as stress range the range of “hot-spot” stress; having identical brace (branch) members. ISO 14347:2008 applies to both hot-finished and cold-formed steel structural hollow sections, complying with the applicable national manufacturing specification, that fulfil specified quality requirements. ISO 14347:2008 applies to joints consisting of circular hollow sections (CHS) or rectangular hollow sections (RHS) as used in uniplanar or multiplanar trusses or girders, such as T-, Y-, X-, K-, XX-, and KK-joints.