Steel structure beam-column slotted hole rotating type high-strength bolt connection ductility joint

Abstract

The invention relates to a steel structure beam column, in particular to a high-strength bolt connection joint for the steel structure beam column. The invention provides a slotted hole rotating type high-strength bolt connection ductility joint for the steel structure beam column, which comprises a column, a top flange plate of a beam, a bottom flange plate of the beam, a web of the beam, a top flange splicing plate of the beam, a bottom flange splicing plate of the beam, a web splicing plate and a plurality of web friction type high-strength bolts, wherein the top flange plate and the bottom flange plate are connected through the high-strength bolt in a butted mode. The bolt hole of the high-strength bolt is a slotted hole along the shearing direction of the bolt hole, and the high-strength bolt is positioned in the middle in the length direction of the slotted hole. The high-strength bolt connection ductility joint can provide larger distortion space, improve the energy consumption and the internal force redistribution capability of the structure, and cannot cause brittle failure during the earthquake; therefore, the shock-proof performance of the structure is enhanced.

Description

technical field [0001] The invention relates to a beam column of a steel structure, in particular to a high-strength bolt connection node of a beam column of a steel structure. Background technique [0002] Beam-column joints are one of the most important joints in the steel frame, usually using high-strength bolts of web friction type, rigid connections of upper and lower flange plates butt welding. The strength of this connection is high, but the ductile deformation capacity is insufficient. During several major earthquakes in the world in recent years, many such joints have brittle failures. Therefore, countries all over the world are studying methods to improve the ductile deformation performance of steel frame joints. my country's codes also put forward specific requirements for the "ductility" of joints. [0003] The methods proposed so far to enhance the ductile deformation performance have all improved the ductility of the joints, but they cannot control the specif...

AI Technical Summary

Problems solved by technology

[0003] The methods proposed so far to enhance the ductile deformation performance have all improved the ductility of the joints, but they cannot control the specific rotation angle value of the ductile deformation. Some ductile joints have weakened the joint strength (such as "dog-bone joints"), and if ductile corners are more difficult to recover

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