Beam end torsion resistance joint for bi-directional beam and column isolation

Abstract

The invention discloses a beam end torsion resistance joint for bi-directional beam and column isolation. The beam end torsion resistance joint includes a rectangular steel tube concrete column, lateral plates and H-shaped steel beams; the two lateral plates are correspondingly and fixedly arranged on the two opposite lateral faces of the rectangular steel tube concrete column, and the axis of each lateral plate is perpendicular to the axis of the rectangular steel tube concrete column; the H-shaped steel beams are perpendicularly and fixedly arranged at the positions, located on the rectangular steel tube concrete column, of the external surfaces of the two lateral plates; and the H-shaped steel beams perpendicular to the rectangular steel tube concrete column are fixedly arranged betweenthe two lateral plates and located on the two sides of the rectangular steel tube concrete column. According to the beam end torsion resistance joint, by the lateral plates and angle steel, a beam and a column in the strong axis and weak axis directions are physically isolated, a force transferring path is changed, so a plastic hinge moves outside to the beam, and the requirements that "a columnis strong and a beam is weak, while a joint is strong and a member is weak" are met.

Description

technical field [0001] The invention belongs to the technical field of steel structure beam-column joints, in particular to a beam end torsion-resistant joint with two-way beam-column isolation. Background technique [0002] In order to meet the needs of strong columns and weak beams, and to move the plastic hinge to the beam, two technical solutions have appeared in recent years: strengthening the column section, such as using inner diaphragms and outer ring plates; weakening the beam section, such as using dog-bone flanges or Drill holes in the beam web. But there are certain problems in both of these solutions. The cross-section of the reinforced column uses an inner partition. If the column is a steel tube concrete column, it will cause difficulties in pouring concrete in the column; the cross-section of the reinforced column uses an outer ring plate, which increases the amount of materials and is not beautiful; weakens the beam section, which may reduce the stability o...

AI Technical Summary

Problems solved by technology

The existing beam-to-column connection technology makes it difficult for groove stiffeners to approach both ends. Even if they can, there is a problem of overlap of weld seams, which makes the stress state of the joint area complex and affects its bearing capacity.

Images