A kind of vertical adjustment guide device and construction method of steel pipe column with turnaround method

Abstract

The invention provides a turnable top-down method steel pipe column verticality adjusting guide device and a construction method thereof. The verticality adjusting guide device comprises a permanent steel pipe column, an upper section verticality adjusting steel tube, a lower section verticality adjusting steel tube and a connection screw rod; the upper section verticality adjusting steel tube and the lower section verticality adjusting steel tube are connected through a flange, and the lower section verticality adjusting steel tube and the permanent steel pipe column are connected through a flange; after pile body pore forming is finished, a lower pile body reinforcement cage is hoisted, then the whole verticality adjusting guide device is hoisted, verticality adjustment and fixing are carried out on the steel pipe column through a ground verticality adjusting positioning platform, pile body concrete is poured, the ground verticality adjusting positioning platform is removed after the pile body concrete solidifies primarily, an upper flange bolt and the upper section verticality adjusting steel tube are detached firstly, then the connection screw rod is screwed, and finally the lower section verticality adjusting steel tube is detached, so that detachment and repeated use of a non-effective section steel pipe column above a top-down method interface layer are achieved. On one hand, top-down method steel pipe column verticality construction control requirements are taken into consideration, and meanwhile construction temporary measure investment is also reduced. The device is low in manufacturing cost, can be recycled and used and is easy and convenient to construct.

Description

technical field [0001] The invention belongs to the field of building construction, in particular to an auxiliary device for vertically adjusting a steel pipe column in a reverse construction method and a construction method thereof. Background technique [0002] The upside-down method is mostly used in the construction of multi-storey basements of high-rise buildings and other multi-storey underground structures. It solves the safety problem of foundation pit operations in urban high-rise dense areas, and has obvious economic effects in shortening the construction period and reducing the cost of temporary support for construction. However, most of the top-down methods have many restrictions on the engineering. For the above-ground and upper structures, there are load restrictions on the construction, especially the depth of the foundation pit should not be too deep, and the number of underground top-down structures is mostly less than 3 floors. The main reason is that the o...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a turnable upside-down method steel pipe column vertical adjustment guide device and its construction method. To solve the problem that the existing upside-down method steel pipe column construction work surface is lowered to the ground, there is a problem with the verticality of the steel pipe column. This brings more difficulty in construction, and the cut-off permanent steel pipe section is a huge waste of raw materials.

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