Large steel structure positioning method: Fid-Bau Portal

Large steel structure positioning method

CUI YU / YANG HONGWEI

The invention discloses a large steel structure positioning method that comprises the following steps: determining two groups of stress points of the large steel structure; determining the model of the jacking device; lightering the large steel structure arranged on the segmented platform to a designated place by using a flat car; mounting a first group of jacking devices at one group of stress points of the large-scale steel structure to support the large-scale steel structure; moving the flat car and the segmented platform away; mounting a second group of jacking devices at the other group of stress points of the large steel structure; and adjusting the jacking heights of the first set of jacking devices and the second set of jacking devices alternately so that the large steel structure can fall on the ground. According to the invention, the hoisting capacity of a large steel structure in a landing site does not need to be considered, the steel structure can be made as large as possible when the steel structure is manufactured, the follow-up splicing and assembling work is reduced, and the requirement for the size of the site space of the landing site does not exist.

本发明公开了一种大型钢结构的落位方法，其包括以下步骤：确定出大型钢结构的两组受力点；确定顶升装置的型号；利用平板车将设置于分段平台上的大型钢结构驳运至指定地点；在大型钢结构的其中一组受力点安装第一组顶升装置使其支撑着大型钢结构；将平板车和分段平台移走；在大型钢结构的另一组受力点安装第二组顶升装置；交替调整第一组顶升装置和第二组顶升装置的顶升高度以使大型钢结构落位到地面上。本发明无需考虑大型钢结构的落位场地处吊装能力，在制造钢结构时，可以将钢结构尽可能做大，减少了后续的拼装装配工作，且对落位场地的场地空间大小没有要求。

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