某高层井架的改造及分析

An Analysis and Reconstruction of a High Derrick

在高层建筑施工过程中 ,经常会遇到垂直运输机械高度不足的问题。结合高层建筑及沿海地区的施工特点 ,通过复核和验算 ,将 1 2 0 m的高层井架加接改造成 1 80 m的超高层井架 ,并在施工中得到了成功的验证 ;同时分析了高层井架在制作。

During the construction of high buildings, there often arises the case where upright transport machines are not high enough. In respect to the characteristics of high buildings and those of construction in coastal regions, a 120-metre high derrick is reconstructed into a 180-metre high derrick by checking and computation. Its application in engineering construction is successful. Meanwhile, the key points and details that should receive special attention in the preparation, installation and construction of high derricks are analyzed hereafter.