国内高层建筑施工通常用的外脚手架已经越来越适应不了高层建筑迅速发展的需要。近几年来,国内不少地方在高层施工中曾试用过各种各样的悬挑(挂)脚手架,取得许多经验,解决一定的难题。其结构形式不外乎用特制三角桁架与建筑物的柱或墙连结,然后在三角桁架上按承托双排脚手架的横梁,分四层～六层倒按一次,但三角桁架 The external scaffolds commonly used in high-rise building construction in China have become more and more adapted to the rapid development of high-rise buildings. In recent years, many places in China have tried various types of overhanging (hanging) scaffoldings in high-rise construction and gained many experiences to solve certain problems. Its structure is nothing more than the use of special triangular trusses and columns or walls of the building to connect, and then on the triangle truss press the beam supporting the double-row scaffolding, four to six layers down once, but the triangular truss