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随着首都改建步伐的加快,十层以上高层建筑的比重逐步增加。但是,一般轨道塔式起重机和全液压伸缩臂式汽车起重机无论从技术性能或经济效果来看,都不完全适应高层建筑,特别是以钢筋混凝土结构为主的高层建筑施工的需要。根据国内外经验,比较经济合理的高层和超高层建筑吊装机械以自升塔式起重机为好,因为自升塔式起重机具有以下优点: 1.自升塔式起重机能随建筑物升高而升高,所以能较好地满足施工需要;
With the accelerating pace of capital reconstruction, the proportion of high-rise buildings above ten floors has gradually increased. However, general rail tower cranes and all-hydraulic telescopic boom truck cranes are not completely suitable for high-rise buildings in terms of technical performance or economic effect, especially for the needs of high-rise building constructions based on reinforced concrete structures. According to domestic and international experience, it is better to use self-elevating tower cranes for more economical and reasonable high-rise and super high-rise construction hoisting machines because the self-elevating tower cranes have the following advantages: 1. The self-elevating tower cranes can rise as buildings rise. High, so it can better meet the construction needs;