AISC 313-21 PDF下载

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AISC 313-21《钢结构连接节点设计指南》PDF下载
该“规范”并非AISC以数字序号正式发布的强制性规范(Specification),而是AISC在2021年出版的**设计指南**(Design Guide)系列之一,全称为:

**AISC Design Guide 31-21:Connection Design for Structural Stainless Steel**
(《结构不锈钢连接设计指南》,2021年第二版)

核心定位
– 与ANSI/AISC 370-21《结构不锈钢建筑规范》配套,提供**304/304L、316/316L、2205双相不锈钢**梁-柱、梁-梁、支撑、桁架等节点形式的**完整设计流程、算例与构造详图**。
– 解决不锈钢**应变硬化、低导热、高电阻、热膨胀系数大**带来的节点剪力-弯矩重分布、焊接变形、螺栓预紧力损失等特殊问题。

主要内容
1. 材料与焊接性:列出各类不锈钢**名义强度、热影响区软化系数、焊材匹配表**及激光-电弧复合焊工艺窗口。
2. 连接分类与承载力:给出**抗弯、抗剪、拉-剪复合**节点的极限状态方程,并提供**τb刚度折减系数**用于二阶分析。
3. 疲劳与断裂:补充不锈钢**S-N曲线热点应力法**与焊缝细节类别,与AISC 370-21附录4高温疲劳条款互补。
4. 算例与详图:含**4E/8E端板、缩径梁(RBS)、铸钢节点、板式节点**等10个完整算例,可直接套用BIM模型。

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