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Energy-dissipation steel structure beam-column joint with variable rigidity

A technology of beam-column joints and steel structures, which is applied to building components, building structures, earthquake resistance, etc., can solve problems such as difficult to ensure deformation energy consumption capacity at joints, fracture damage at joints, deformation at joints, etc., to achieve joint friction Rotational energy consumption, simple manufacturing process, and convenient use

Active Publication Date: 2014-07-30
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above commonly used connection methods and structures are difficult to ensure controllable deformation energy dissipation capacity at the joints in actual engineering applications, and cannot accurately realize the design requirement that the deformation energy dissipation area must appear at the beam end
In addition, due to the poor plastic deformation ability of welds and high-strength bolts, it is easy to cause insufficient deformation at the joints, causing premature fracture and failure at the joints

Method used

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  • Energy-dissipation steel structure beam-column joint with variable rigidity
  • Energy-dissipation steel structure beam-column joint with variable rigidity
  • Energy-dissipation steel structure beam-column joint with variable rigidity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 , 2 The I-shaped steel beam-column connection form of the present invention shown includes I-shaped steel column 1, steel column stiffener 2, steel beam web connecting plate 3, gasket 4, high-strength bolt 5, steel beam flange connection Plate 6, I-shaped steel beam 7, arc bolt hole 8, strip bolt hole 9. The joints of the I-shaped steel column 1 and steel beam 7 are in the form of two symmetrical surfaces of the steel column 1 with steel beams 7 respectively. The steel beam flanges and the steel beam webs at the beam-column joints are respectively provided with steel beam flange connecting plates 6 And the steel beam web connecting plate 3; the steel beam flange connecting plate 6 and the steel beam web connecting plate 3 are respectively provided with several strip bolt holes 9 and arc bolt holes 8; the strip bolt holes 9 are along the steel The beams 7 are arranged in parallel in the span direction, the arc-shaped bolt holes 8 are arranged at the fitti...

Embodiment 2

[0037] Such as image 3 , 4 The I-shaped steel beam box-shaped steel column node connection form of the present invention shown includes a box-shaped steel column 1, an I-shaped steel beam 7 and a high-strength bolt 5. The box-shaped steel column 1 is internally connected to the steel beam web The welding positions of the connecting plate 3 and the steel beam flange connecting plate 6 are both provided with steel column longitudinal and transverse stiffening ribs 2. Others are the same as in Embodiment 1, and will not be repeated.

Embodiment 3

[0039] Such as image 3 , 4 The I-shaped steel beam circular tube steel column connection form of the present invention shown includes a circular tube steel column 1, an I-shaped steel beam 7 and a high-strength bolt 5. The circular tube steel column 1 is internally connected to the steel beam web The welding positions of the connecting plate 3 and the steel beam flange connecting plate 6 are both provided with steel column longitudinal and transverse stiffening ribs 2. Others are the same as in Embodiment 1, and will not be repeated.

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Abstract

The invention discloses an energy-dissipation steel structure beam-column joint with variable rigidity suitable for various steel columns. a steel beam flange connecting plate and a steel beam web plate connecting plate are respectively arranged on at least one surface of a steel beam flange and a web plate at the beam-column joint; a plurality of strip-shaped bolt holes and arc-shaped bolt holes are respectively formed in the steel beam flange connecting plate and the steel beam web plate connecting plate; standard bolt holes with corresponding quantity are respectively formed in the steel beam flange and the web plate; the steel beam flange and the web plate are connected with the steel beam flange connecting plate and the steel beam web plate connecting plate through high-strength bolts; the steel beam flange connecting plate and the steel beam web plate connecting plate are in welded connection with the steel columns. According to the beam-column joint disclosed by the invention, when a rare occurrence earthquake occurs, beam ends can bidirectionally rotate within a certain angle range, a friction energy dissipation effect is generated, and the purpose of improving the structural earthquake-resistant performance is achieved. Under regular service conditions, the beam-column joint has enough bearing capacity and rigidity, so that functions in normal use are ensured. The requirement that the rigidity of the beam-column joint is variable is met by changing the amount or the performance level of connecting bolts connected with the steel beam flange.

Description

Technical field [0001] The invention relates to a connection node between a steel beam and a steel column in a building structure, in particular to a variable rigidity energy-consuming steel structure beam-column node suitable for various steel column structures. Background technique [0002] Steel structure is widely used in high-rise buildings, large-span buildings and industrial buildings because of its light weight, high strength, uniform material, convenient construction and installation, and short construction period. It is currently one of the most widely used building structures. In addition, with the continuous development of my country's industrialization level, the quality of structural steel has been continuously improved, and the cost has been continuously reduced. At the same time, with the rapid development of urbanization and the increasing shortage of construction land in large and medium-sized cities, high-rise and super high-rise steel structure buildings Will ...

Claims

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Application Information

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IPC IPC(8): E04B1/58E04B1/98
Inventor 张曰果贾连光孙丽程绪宇王春刚
Owner SHENYANG JIANZHU UNIVERSITY