| 摘要 |
A tower is constructed by erecting an upright former (6); assembling a first section (31) of the tower around the former (6); raising the first tower section (31); assembling a second tower section (32) around the former (6); connecting the first and second tower sections (31, 32), and repeating the steps to add further tower sections. Disassembly is the reverse process. The method of assembly is particularly suitable to mobile towers that are transported on road trailers and may be used with advantage with amusement rides. |
