对焊接钢吊车梁腹板与上翼缘之间疲劳裂缝的探讨  

THE DISCUSSION ON THE FATIGUE CRACK BETWEEN WEB AND UPPER FLANGE OF WELDED CRANE BEAM

作　　者：温晓明[1] 郑山锁[2] 

机构地区：[1]太钢集团公司,太原030003 [2]西安建筑科技大学,西安710055

出　　处：《工业建筑》2004年第10期59-61,共3页Industrial Construction

摘　　要：对重级工作制焊接钢吊车梁腹板与上翼缘连接焊缝的纵向水平疲劳裂缝进行了长期的观察和研究。根据疲劳裂缝产生的不同机理 ,将其分为支点裂缝和肋间裂缝 ,并讨论了两类裂缝产生的原因、分布规律。The fatigue crack between the web and the upper flange of a welded steel crane beam for heavy duty service was discussed, and based on long-term observation and research, the author classified fatigue crack into support type and intercostal type crack along the horizontal direction. The cause, distributive law and mechanism of the crack were analyzed, and the measures to prevent and remedy crack were presented.

关 键 词：吊车梁 翼缘 腹板 疲劳裂缝 连接 焊接 焊缝 对焊 工作制 支点 

分 类 号：TU391[建筑科学—结构工程] TG404[金属学及工艺—焊接]