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近年来,上海地区随着高层建筑任务的比重迅速增加,施工技术新工艺的不断发展,对作为起重运输机械中占主机地位的塔式超重机,无论从技术性能、品种、数量以及配套要求上,将越来越高。塔式起重机的实际运送能力,取决于塔吊的起重吨米和吊钩及各机构的工作速度。在大型高层住宅及公共建筑施工中,目前在国外及北京地区选择塔吊超重能力时,有趋向大型向的发展方向。如日本著名的36层
In recent years, with the rapid increase in the proportion of high-rise building tasks in Shanghai, and the continuous development of new construction technology, the tower-type super-heavy machine, which occupies a dominant position in the lifting and transport machinery, is in terms of technical performance, variety, quantity, and supporting requirements. It will be higher and higher. The actual delivery capacity of tower cranes depends on the lifting capacity of the tower cranes and the number of hooks and the working speed of each mechanism. In the construction of large-scale high-rise residential buildings and public buildings, the selection of tower cranes in foreign countries and Beijing areas is currently tending towards large-scale development. Such as Japan’s famous 36-story