Combined type super-long section steel cantilever platform construction method: Fid-Bau Portal

Combined type super-long section steel cantilever platform construction method

GENG SHICHUN / JIN JIANMING / XU JIANZHONG

The invention provides a combined type super-long section steel cantilever platform construction method, and belongs to the technical field of building construction. The combined type super-long section steel cantilever platform construction method comprises the following steps that preparation is carried out before construction; section steel cantilever operation platform materials are processed; an I-shaped steel pressing ring and an embedded plate are pre-embedded; an I-shaped steel main beam of a section steel cantilever platform is installed; secondary beams of the section steel cantilever platform are installed; steel wire ropes are tied; pre-pressing and loading tests are carried out on the section steel cantilever platform; section steel cantilever platform monitoring points are arranged; and the section steel cantilever operation platform is dismantled. A rectangular square tube inclined strut arrangement technology for preventing instability of the section steel cantilever platform is adopted, an inclined strut stress platform is arranged to bear the load of an upper structure, and the inclined strut stress platform is dismantled after construction is completed.

一种组合式超长型钢悬挑平台施工方法，属于建筑施工技术领域，它包括如下步骤：施工前准备，型钢悬挑操作平台材料加工，预埋工字钢压环及埋板，型钢悬挑平台的工字钢主梁安装，型钢悬挑平台次梁安装，钢丝绳拉结，型钢悬挑平台的预压及加载试验，设置型钢悬挑平台监测点，型钢悬挑操作平台的拆除。采用面向型钢悬挑平台防失稳的设置矩形方管斜撑技术，通过设置斜撑受力平台以承受上部结构荷载，并在施工完成后拆除。

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