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

A technology of high-strength bolts and oblong holes, applied in the field of steel structure beams and columns, can solve the problems of uncontrollable ductile deformation rotation angle, weakened joint strength, difficult recovery, etc.

Inactive Publication Date: 2010-01-13
SHANGHAI BAOYE GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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Embodiment Construction

[0016] The present invention mainly consists of a column 1, a beam upper flange plate 2, a beam lower flange plate 3, a beam web 4, a beam upper flange splicing plate 5, a beam lower flange splicing plate 6, a web splicing plate 7, and high-strength bolts 8. Bolts 8 connect the upper and lower flange plates, and the bolt holes of the high-strength bolts 8 are oblong holes along the shearing direction, and the high-strength bolts 8 are located in the middle of the length direction of the oblong holes.

[0017] The width of the beam upper flange plate 2 and the beam lower flange connecting part plate 3 is not less than the width of the upper and lower flanges of the connected beam plus the width weakened by the cross-sectional screw holes.

[0018] The major axis length of the circular hole is d 0 +θh, the minor axis direction is d 0 ,

[0019] d 0 : The diameter of the general screw hole;

[0020] θ: Target rotation angle, ≥3%;

[0021] h: the distance of the hole from the...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04B1/24
Inventor 马人乐陈桥生李旻
Owner SHANGHAI BAOYE GRP CORP
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