Bamboo joint type energy-dissipation concrete-filled steel tube joint and mounting method thereof

Abstract

The invention relates to the field of building construction, and discloses a bamboo joint type energy-dissipation concrete-filled steel tube joint and a mounting method thereof. The bamboo joint typeenergy-dissipation concrete-filled steel tube joint comprises a steel column, a steel beam and a connecting assembly; the steel column is a double-steel-pipe column and comprises an inner pipe and anouter pipe; the steel beam is an I-shaped beam, the middle section of each flange plate is a flange plate with folds, and the two ends of each flange plate are horizontal plates; the connecting assembly comprises an inner supporting piece, a connecting cylinder kit and a movable connecting piece, and the inner supporting piece comprises a connecting steel column and square blocks fixed to the twoends of the connecting steel column; the connecting cylinder kit comprises an upper connecting cylinder, a middle connecting cylinder and a lower connecting cylinder, the upper connecting cylinder andthe lower connecting cylinder are the same in structure, a circle of boss is arranged in the middle of the inner wall of each of the upper connecting cylinder and the lower connecting cylinder, and double connecting lugs are arranged on each side surface of the middle connecting cylinder; and the movable connecting piece comprises an L-shaped connecting plate, a horizontal connecting plate and aconnecting rod assembly. According to the concrete-filled steel tube joint, the inner supporting piece is arranged in the steel column, and the inner supporting piece is designed in the double-steel-pipe column to form a bamboo joint effect, so that the joint strength is enhanced, the internal steel pipe is prevented from buckling, and the overall strength of the column is improved.

Description

technical field [0001] The invention relates to the field of building structures, in particular to a steel pipe concrete joint and an installation method using the joint. Background technique [0002] With the development of society and economy, the building structure is constantly developing towards higher and larger directions. Due to its large bearing capacity, strong earthquake resistance, large deformation capacity and convenient construction, CFST has been widely used in projects. Applications. [0003] The joint is the key part of the connection between the column and the beam, which is very important for the safety and structural performance of the entire structure. Most of the existing connection methods are direct welding of steel pipes, which requires high site construction and poor quality control. The welding residual stress increases the possibility of brittle failure of the structure and reduces the stable bearing capacity of the compression bar. At the same ...

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Problems solved by technology

[0004] Technical effect of the present invention Aiming at the shortcomings of the existing beam-column joint connection structure, a bamboo joint type energy-dissipating concrete filled steel pipe joint is provided

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