Construction method for large-dip-angle giant steel pipe column core tube penetrating through basement top plate

Abstract

The invention discloses a construction method for a large-dip-angle giant steel pipe column core tube penetrating through a basement top plate. The construction method comprises the following steps that (1) a BIM model is established, animation deduction is adopted for simulating the key process construction process, site construction is guided, predictability of a construction site is improved, and safety risks in the construction process are reduced; (2) steel pipe column foundation bolts are installed, specifically, the steel pipe column foundation bolts are pre-buried and fixed through a positioning frame, the plane position and the elevation can be adjusted conveniently, the pre-burying precision is improved, and deviation of the bolts in the concrete pouring process is also prevented; (3) steel pipe column positioning and mounting are conducted, multiple-space accurate positioning is adopted for spatial special-shaped circular pipe inclined columns, and the problem of spatial positioning of large-dip-angle huge steel pipes is solved; and (4) the large-span super-heavy steel box girder is positioned and installed, multiple spaces are adopted for accurate positioning, and an operation hole is reserved in a cover plate, so that welding is facilitated, and the field welding quality of a butt joint opening of the steel box girder is improved.

Description

technical field [0001] The invention relates to a method for installing a steel structure, in particular to a construction method for a core tube of a giant steel pipe column pierced through a basement roof with a large inclination angle. Background technique [0002] The core tube is the central part of the building. It forms an outer frame and inner tube structure with the external frame, which is very conducive to the structural force and has excellent seismic performance. It is the mainstream structural form widely used in super high-rise buildings and long-span buildings in the world. . At the same time, the advantage of this structure is that it can obtain a large amount of use space, so that various auxiliary service spaces can be concentrated in the center of the plane, so that the main function space can occupy the best lighting position, and can achieve good sightlines and convenient internal traffic. Effect. However, the steel tube column is used as the support ...

AI Technical Summary

Problems solved by technology

The conventional roof back reinforcement method is to encrypt the vertical poles in the formwork support system. The formwork support system under the basement roof will not be removed during steel structure construction. The material consumption is large, the occupation time is long, and the cost is high.

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