抗震钢结构焊接接头性能

[中文适用范围]： 本文件定义了焊接接头的两个性能等级，即基本需求和关键需求，适用于焊接钢结构的抗震性能规范，涉及焊缝金属的纵向拉伸强度和焊缝金属及热影响区的冲击韧性。本文件补充了在新钢材、焊接材料或复杂接头焊接工艺评定标准或规范中的规定，适用于工程师在合同中指定需要满足基本需求或关键需求的焊缝。 [外文原描述]： This document defines two performance levels for welded joints, namely Basic Demand and Critical Demand, for longitudinal tensile strength of weld metals, impact toughness of weld metals and heat affected zones (HAZ) to suit the level of seismic performance specifications required for welded steel structures. This document supplements the provisions of the standards or codes for welding procedure qualification in the application of new steel materials, welding consumables, or complex joints, for welds that require the performance of Basic or Critical Demands as specified by the engineer in the contract.