Simple assembly type concrete filled steel tubular column base

Abstract

The invention discloses a simple assembly type concrete filled steel tubular column base, and belongs to the field of civil engineering. A connecting steel tube is welded to a flange plate, stiffeningribs are arranged around the connecting steel tube, the stiffening ribs are welded to the flange plate and the connecting steel tube respectively, and thus the connecting steel tube and the flange plate are integrated; bolt holes are formed in the corresponding positions of the flange plate and a foundation bottom board respectively, long-rod anchor bolts penetrate through the flange plate and the foundation bottom board in sequence to be embedded into a foundation, and thus the flange plate, the foundation bottom board and the foundation are fixedly connected; bolt holes are formed in the corresponding positions of the connecting steel tube and a column steel tube respectively, and unilateral bolts penetrate through the connecting steel tube and the column steel tube in sequence to fixedly connect the connecting steel tube with the column steel tube; concrete is poured into the column steel tube to form a steel tube concrete column. The concrete filled steel tube column base providesa new connection mode between the concrete filled steel tube column and the foundation, and connection of the concrete filled steel tube column and the foundation on the outer side of the steel tubeis achieved by means of the characteristic that the unilateral bolts can be installed on one side.

Description

technical field [0001] The invention belongs to the field of structural engineering in civil engineering, and in particular relates to a simple assembled steel pipe concrete column base. Background technique [0002] Concrete-filled steel pipe is a component composed of steel pipe and inner-filled concrete. It has the advantages of high bearing capacity, high rigidity, and good earthquake resistance and fire resistance. As a vertical load-bearing member, concrete-filled steel pipe has been widely used in high-rise and super high-rise buildings in my country. . When the steel pipe concrete column is connected to the foundation, the steel pipe of the column is a closed cross-section. When the traditional bolts are used to connect the column feet, because the traditional bolts need to be installed on both sides, the construction personnel may need to enter the interior of the steel pipe to operate, which affects the convenience of construction. , and pose a safety hazard to con...

AI Technical Summary

Problems solved by technology

When the steel pipe concrete column is connected to the foundation, the steel pipe of the column is a closed cross-section. When the traditional bolts are used to connect the column feet, because the traditional bolts need to be installed on both sides, the construction personnel may need to enter the interior of the steel pipe to operate, which affects the convenience of construction. , and pose a safety hazard to construction workers

If the site-welded column foot is used, the necessary welding process and quality must be met, and the welding technology requirements for construction personnel are relatively high, which may affect the reliability of the connection between the CFST column and the foundation

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