桥式起重机桥架变形的简易修复

• 作 者: 曹志林
• 机 构: 太钢加工厂
• 出 处: 冶金设备
• 发表日期: 1993年03期
• 关键词: 桥架 上拱度 桥式起重机 吊车 主梁 双梁 动梁 报废更新 炉排 修复加固

太钢加工厂水渣工段有三台跨度31.5m、起重量15t的双梁桥式抓斗吊车,为太钢的四座高炉排渣,作业环境恶劣,使用率高。其中1971年出厂的2~#吊车已使用多年,桥架变形并严重腐蚀,拱度消失,强度不足,1989年就已制订了报废更新计划。我们在加强观测监护和测量分析后发现,除桥架主梁已没有上拱度(主动梁上拱度为0,从动梁上拱度为5mm)和主

There are three double-girder bridge grab cranes with a span of 31.5m and a lifting capacity of 15t, which discharge slag for the four blast furnaces of TISCO. The operation environment is harsh and the utilization rate is high. Among them, the 2 # cranes manufactured in 1971 have been used for many years, the bridge has been deformed and severely corroded, the crown disappears and the strength is insufficient. In 1989, a scrapping and renewal plan has been formulated. After strengthening observation monitoring and measurement analysis, we found that, except that the main beam of the bridge has no camber (the camber of the active beam is 0 and the camber of the driven beam is 5 mm)