A construction method for exposed steel column feet
A construction method and exposed technology, applied in infrastructure engineering, construction, etc., can solve the problems of difficulty in adjusting the verticality of steel columns, difficult to control the quality of secondary grouting, etc., and achieve easy adjustment of elevation and verticality, and construction operation. The effect of easy control and high construction efficiency
Active Publication Date: 2018-10-02
广西建工第五建筑工程集团有限公司
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Problems solved by technology
[0007] The purpose of the present invention is to improve the existing construction technology in view of the common problems in the construction of exposed steel column feet, such as the difficulty in controlling the quality of the secondary grouting and the difficulty in adjusting the verticality of the steel column, so as to achieve a more efficient connection between the steel column and the foundation floor. Reliable, verticality adjustment is also easier to improve construction quality
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[0034] A construction method for an exposed steel column foot, comprising the following steps:
[0035] S1: Leave a cup opening at the installation part of the steel column
[0036] Lay the foundation bottom plate reinforcement, and insert columns and reinforcements around the shaped steel column according to the drawings. After the foundation bottom plate reinforcement and column insertion reinforcement are completed, use steel wire mesh or quick-easy closing net to block the reinforcement around the column to form a cup The depth of the block, that is, the depth of the cup mouth is suitable for the layered thickness of the foundation floor concrete pouring, which is 50-100cm; the shape of the cup mouth is consistent with the steel column, or it is a square column, or a cylinder; the section is straight up and down, or left have a certain slope;
[0037] S2: Pre-embedded anchor bolts
[0038] S21: Set the ring-shaped steel plate corresponding to the base plate of the shaped...
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A construction method for exposed steel column feet, comprising the following steps: S1: leave a cup opening at the installation position of the steel column, S2: pre-embed the anchor bolts, S3: perform layered pouring and maintenance on the foundation floor concrete, S4: Lift the steel column and adjust the verticality and elevation, S5: Pouring cup concrete. In this construction method, the space at the bottom of the steel column foot forms a cup mouth, which has a large reserved space, and the adjustment operation of the height and verticality of the steel column is convenient, and the construction efficiency is high; the concrete can be poured directly without using pressure equipment, and the construction cost is low; in addition, it can be used Ordinary concrete pouring replaces pressure grouting, and high-grade concrete can be poured into the mouth of the cup according to construction needs. The construction operation is easier to control and the quality is easy to guarantee; because the ring-shaped steel plate and the anchor bolts are welded and fixed during construction, the ring-shaped steel plate is laid on the bottom of the bottom plate. The steel mesh is not only beneficial to control the elevation, but also beneficial to strengthen the local compressive strength and evenly disperse the pressure at the foot of the column.
Description
technical field [0001] The invention relates to a building construction method, in particular to an exposed steel column foot construction method. Background technique [0002] In the building steel structure, the role of the steel column foot is to transmit the axial force, shear force and bending moment of the lower part of the steel column to the foundation, so that the upper structure and the foundation are effectively connected together; the steel column foot is usually divided into exposed type according to the structural form Steel column footing, plug-in steel column footing and outsourcing steel column footing, exposed steel column footing refers to the column footing form in which the bottom plate of the column or shoe beam is fixed on the foundation through anchor bolts, and the commonly used exposed steel column footing construction The method is to use anchor bolts for construction. Since the steel column, that is, the shaped steel column, needs to be adjusted f...
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IPC IPC(8): E02D27/42
CPCE02D27/42
Inventor 李书文吴炳豪黄鸣何本升郑勇林
Owner 广西建工第五建筑工程集团有限公司