qtz40塔式起重机总体及臂架设计计算说明书.doc

毕业设计说明书题目:QTZ40塔式起重机总体及臂架设计目录第1章前言······························································································································································································································1第2章总体设计··············································································································································································································································································································································································································································································································································································49第3章吊臂的设计计算························································································································································································································································································································································································································································································································76毕业设计小结······································································87致谢··················································································88参考文献············································································,在建筑施工中起着重要作用,我们只用了五十年时间走完了国外发达国家上百年塔机发展的路程,如今已达到发达并跻身于当代国际市场。QTZ40型塔式起重机简称QTZ40型塔机,是一种结构合理,性能比较优异的产品,比较国内同规格同类型的塔机具有更多的