吊装长大件货物的门式起重机结构特性北京起重运输机械研究所李书梁戴建华北京昌平机车车辆机械厂郭良许多铁路货场及一些专业生产厂家经常使用门式起重机吊装钢轨或其它长大件货物，而一般单吊钩门式起重机在吊装长件货物时不够稳定，给操作工人带来很多不便，甚至发生危... Hoisting of large cargo gantry crane structural characteristics Beijing Institute of Hoisting and Transport Machinery Shu-Liang Li Dai Jianhua Beijing Changping Locomotive and Rolling Stock Works Guo Liang Many rail yards and some professional manufacturers often use gantry crane hoisting rails or other large pieces of goods , While the general single-hook gantry crane hoisting long pieces of cargo is not stable enough, to the operating workers brought a lot of inconvenience, or even dangerous ...