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河南广播电视发射塔外塔柱采用巨型桉叶糖形钢管柱,其截面形式特殊,板件宽厚比大,且外塔柱均采用法兰连接。通过对桉叶糖形管体的试验,将原设计方案中的焊接量降低了一半,既保证了构件质量又缩短了生产加工周期。笔者对外塔柱连接法兰加工制作、桉叶糖管体加工、管体的焊接、管体与法兰的组装、管体的对接等施工工艺进行详细阐述。
Henan radio and television tower outside the tower using giant eucalyptus sugar-shaped steel column, the special form of its cross-section, board width to thickness ratio, and the outer pillars are flanged connection. Through the test of eucalyptus sugar-shaped pipe body, the welding quantity in the original design scheme is reduced by half, which not only ensures the quality of the components but also shortens the production and processing cycle. The author of the external column flange connection manufacturing, eucalyptus sugar tube body processing, the welding of the pipe body, the pipe body and the flange assembly, the docking of the pipe body and other construction techniques are described in detail.