卸船机大梁拱度放样及制造

摘要

During the operation of ship unloader, the girder will ?ex elastically under the load of the trolley, increasing the running resistance of the load-bearing trolley. Generally, similar structures should be made into arched girder in design.Based on the practical experience, the experience of determining the pre-camber in the manufacturing process and the lofting method and steps of the pre-camber in the broken line are summarized.%卸船机工作时, 大梁在小车载荷作用下会产生弹性下挠, 增加了承载小车的运行阻力.一般设计时, 都要将类似的结构做成有拱度的梁.文中通过实践经验, 总结了制造过程中预制拱度确定经验和折线预拱度放样方法及步骤.