桥式起重机使用安全评估分析  

Analysis on Safety Assessment for Operation of Bridge Crane

作　　者：龙靖宇[1] 吴海彤[2] 李小兵[2] 

机构地区：[1]武汉科技大学机械自动化学院,武汉市青山区建设二路430064 [2]马钢股份有限公司设备部,安徽省马鞍山市243000

出　　处：《港口装卸》2003年第5期10-12,共3页Port Operation

摘　　要：桥式起重机的工作环境恶劣 ,桥架结构焊缝多 ,很容易产生疲劳裂纹 ,成为影响安全使用的危险隐患 ,某钢厂就发生过桥架突然断裂的恶性事故。对多台冶金桥式起重机的检查、测试和分析表明 :宽翼缘箱形梁的桥架结构使用较安全可靠 ,而工字梁和窄翼缘箱梁加辅助桁架的主梁结构较不安全。Metallurgy bridge crane, for its adverse circumstances and much more welding in boom and so easy to have fatigue crack, becomes hidden danger to effect the safety operation. There was an abrupt fracture of the boom in a steel plant. By checking, testing and analyzing for a lot of metallurgy bridge cranes, it states that the boom of thin-walled box structure with broad horizontal plates is more reliable and safe in usage than that with narrow one or I-type beam those are stiffened with auxiliary truss.

关 键 词：桥式起重机 使用性能 安全评估 疲劳裂纹 可靠性 主梁结构 桥架结构 

分 类 号：TH215[机械工程—机械制造及自动化]