Rectangular steel pipe column and I-steel beam sleeve steel plate bolt connecting node

Abstract

The invention discloses a rectangular steel pipe column and I-steel beam connecting node structure in the technical field of construction steel structure engineering, which comprises a rectangular steel pipe column 1, an I-steel beam 2, a sleeve steel plate 3 and a high-strength bolt 4, wherein the steel plate 3 is sleeved at a node of the rectangular steel pipe column 1; the sleeve steel plate is connected with the rectangular steel pipe column by peripheral fillet welding or power-on rivet welding; a bolt hole or a thread hole is opened in the corresponding position of the high-strength bolt; an end plate or a T-shaped connecting member 5 is welded at the end part of the I-steel beam 2; and the rectangular steel pipe column 1 and the end plate or the T-shaped connecting member 5 at the end part of the I-steel beam are connected by the high-strength bolt 4. The rectangular steel pipe column and I-steel beam connecting node of the invention finishes all welding in a factory, just needs bolt connection in a construction field and has the advantages of high node rigidity and bearing, especially high node shock resistance and low energy consumption.

Description

technical field [0001] The invention relates to a structure in the technical field of building steel structure engineering, in particular to a connection node structure of a rectangular steel pipe column and an I-shaped steel beam. Background technique [0002] Rectangular steel pipe columns have the advantages of equal strength in all directions, high torsional rigidity, no weak axis during bending, and high bearing capacity, and are widely used in steel frames. At present, the beam-to-column connections of rectangular steel pipe columns and steel frames are mainly rigid connections, but the rigid connections require on-site welding, the construction speed is slow, and the construction quality is not easy to guarantee. In addition, brittle fractures occurred in the Kobe earthquake in Japan in 1995. The steel frame beams and columns are connected by high-strength bolts and connectors (angle steel, T-shaped steel, end plates, etc.), so that the welding work can be completed i...

AI Technical Summary

Problems solved by technology

[0003] The direct bolt connection between the rectangular steel pipe column and the steel beam, when the node is loaded, the flange plate of the column is prone to out-of-plane deformation, the bearing capacity of the node is small, especially the stiffness of the node is small, the hysteresis curve is pinched, the energy dissipation capacity is low, and the earthquake resistance Poor performance, does not meet the seismic requirements of strong nodes and weak members

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