Construction method for large-section embedded stiff column base

Abstract

The invention relates to a construction method for a large-section embedded stiff column base. The construction method comprises the following steps: 1) manufacturing a positioning connecting body anda steel column connecting section; 2) excavating a basic soil body; 3) carrying out concrete pouring construction for a first column base; 4) setting a prestress tie bar; 5) hoisting and positioningthe steel column connecting section; 6) carrying out concrete pouring of a second column base; 7) tensioning the prestress tie bar. According to the construction method, the positioning connecting body comprising a positioning bottom plate and a bearing top plate is arranged, and the positioning connecting body and a basic reinforcement cage are connected, so that the connecting strength and integrity of the column base and a lower structure can be enhanced effectively. An inclined supporting rib is arranged between the steel column connecting body and the basic reinforcement cage and a reinforcing connecting rib and a pressure dispersing plate are arranged on the outer surface, so that the connecting strength between the steel column connecting section and concrete of the second column base can be enhanced effectively, and the peak stress of the structure is dispersed.

Description

technical field [0001] The invention relates to a construction method for installing rigid column feet, in particular to a construction method for a large-section embedded rigid column foot with good structural integrity, high on-site construction efficiency, and reliable positioning and assembly quality, belonging to the field of building construction , suitable for rigid column foot installation projects. Background technique [0002] With the development of our country's economy, the construction scale of construction projects continues to expand, and there are more and more super high-rise buildings in cities. Stiff steel column feet are an important part of the connection between the main structure of the super high-rise building and the foundation. According to the structure, it can be divided into three types: exposed type, embedded type and outsourcing type. During the construction process of embedded installation of engineering rigid steel columns in super high-ris...

AI Technical Summary

Problems solved by technology

Although this construction method solves the problem of small installation space of the column foot and improves the construction efficiency to a certain extent, there are still some improvements in the shear resistance and integrity of the column foot and the improvement of the positioning accuracy of the components.

[0004] In summary, although the existing construction methods have achieved good construction results under suitable working conditions, there are still deficiencies in the improvement of the shear resistance and integrity of column feet, and the improvement of component installation and positioning accuracy.

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