论文部分内容阅读
自从1973年秋,在北京饭店扩建工程首次采用我国自行设计、加工和制造的第一批自升塔式起重机以来,仅仅几年的时间,这种型式的塔式起重机正在我国其它一些大、中城市和地区相继采用,如上海、天津、广州、西安、福建、郑州、哈尔滨、常德、常州、青岛等地均已先后自行设计制造了适合本地区实际施工需要、具有不同起重性能的自升塔式起重机,而且在参数选择、结构设计、机构设置和细部处
Since the autumn of 1973, the first batch of self-elevating tower cranes designed, processed and manufactured in China has been used for the first time since the Beijing Hotel expansion project. In just a few years, this type of tower crane is being used in other large and medium-sized cities in China. It has been successively adopted in regions such as Shanghai, Tianjin, Guangzhou, Xi’an, Fujian, Zhengzhou, Harbin, Changde, Changzhou, and Qingdao. All of them have independently designed and manufactured self-elevating towers that are suitable for actual construction needs in the region and have different lifting performance. Crane, but also in the selection of parameters, structural design, institutional settings and details