QT4-10型附着式自升塔式起重机在1973年8月中旬开始,陆续在北京饭店新楼工程工地上进行安装,到9月上旬顺利地投产使用,及时解决了该工程8层以上的构件吊装和建筑材料的垂直运输这一关键问题,不仅提高了施工机械化程度,减轻了工人体力劳动,加快了施工进度,而且为首都高层建筑提供了一种新型施工设备。 The QT4-10 attached self-elevating tower crane began in mid-August 1973 and was successively installed on the construction site of the Beijing Hotel’s new building project. It was put into operation in early September, and the eight-storey component of the project was solved in time. The key issue of vertical transportation of lifting equipment and construction materials not only improved the degree of construction mechanization, reduced the physical labor of the workers, accelerated the construction progress, but also provided a new type of construction equipment for the capital’s high-rise buildings.