本文论述几种起重机钢结构焊缝裂纹产生的原因，提出焊缝裂纹的修复方法和起重机钢结构设计、制造中防止焊缝开裂的改进措施。
This article discusses causes of weld cracking in crane's steel structure, recommends ways of remedy and makes proposals concerning design and fabrication to avoid cracks.
研制了针对钢结构桥梁焊缝缺陷扩展的超声相控阵监测系统。
The ultrasonic phased array system for monitoring the expanding of weld defect in steel bridge was researched.
研究了基于应变模态的钢结构构件焊缝损伤的自动识别方法。
The strain mode based approach to identify weld damage in members of steel structure automatically is demonstrated in present paper.
KK型圆钢管搭接节点，搭接处隐藏焊缝焊接与否的问题，现行钢结构设计规范（GB50017-2003）未作明确要求。
The question whether hidden weld in unstiffened overlapped CHS KK-joints is welded or not is not clearly metioned in current code for design of steel structures(GB50017-2003).
焊接质量是影响钢结构工程质量的重要因素，对焊缝进行无损探伤检验是确保焊缝质量的重要手段。
The quality of welding is an important factor that influences steel structure project quality. Nondestructive inspection is an important method which guarantees welding seam quality.
考虑到钢结构焊接检测的针对性和适用性，主要就焊缝抗拉试验、焊缝尺寸和焊缝外观质量的检测进行了分析和讨论。
The analysis and discussion on tensile test, dimension, appearance inspection of welds are conducted with the applicability of welding detection of steel structures taken into account.
本课题研究了建筑钢结构熔透对接焊缝中缺陷当量的分析方法和非裂纹类缺陷对焊缝正常使用的影响。
The research focuses on the defect equivalent analytical methods in building steel structure butt weld fusion and the effects of non-crack-type defects on the normal use of butt weld fusion.
本文主要采用神经网络方法，依据结构的应变模态理论，对钢结构构件的焊缝损伤的自动识别问题进行了综合的研究。
The approaches to identify and locate weld damage in members of steel structure are discussed by using strain mode in this paper.
本文主要采用神经网络方法，依据结构的应变模态理论，对钢结构构件的焊缝损伤的自动识别问题进行了综合的研究。
The approaches to identify and locate weld damage in members of steel structure are discussed by using strain mode in this paper.
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