一、前言良好的钢筋焊接接头质量是保证建筑结构安全使用的重要组成部分。为了保证气压焊接头的质量,其质量检测工作是必不可少的。因此,在国标“钢筋气压焊”(GB12219—89)中,对于接头的质量验收,规定了两项检查内容,即:外观检查和机械性能试验两部分。实践证明,无论外观检查或机械性能试验均具 I. Preface A good quality of welded steel joints is an important part of ensuring the safe use of building structures. In order to ensure the quality of the pressure welding head, its quality inspection work is indispensable. Therefore, in the national standard “steel bar pressure welding” (GB12219-89), for the quality acceptance of joints, two inspection contents are specified, that is, appearance inspection and mechanical performance test. Practice has proved that regardless of appearance inspection or mechanical performance test