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Seismic joints of steel structures for prefabricated buildings and their construction methods

An architectural and prefabricated technology, applied in the direction of building components, building structures, protective buildings/shelters, etc., can solve the problems of poor plastic deformation ability of welds, deformation at nodes, and fractures at nodes, etc. Improved construction efficiency and outstanding seismic performance

Active Publication Date: 2019-05-24
山东金宇杭萧装配建筑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Beam-column joints are generally welded or hinged, and the above connection methods and structures are difficult to ensure controllable deformation and energy dissipation at the joints
In addition, due to the poor plastic deformation ability of the weld itself, it is easy to cause insufficient deformation at the joints, causing premature fracture and failure at the joints

Method used

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  • Seismic joints of steel structures for prefabricated buildings and their construction methods
  • Seismic joints of steel structures for prefabricated buildings and their construction methods
  • Seismic joints of steel structures for prefabricated buildings and their construction methods

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Embodiment Construction

[0037] The anti-seismic joints of steel structures used in prefabricated buildings involve the design of joints at the intersecting parts of steel beams and steel columns. Wherein, the steel column in the present invention is described by taking an I-shaped steel column as an example, and the steel beam is described by taking an I-shaped steel beam as an example.

[0038] The steel column 100 is formed by cutting and welding a steel plate with a thickness of 2-5 cm. After welding, the whole is an H-shaped structure composed of a column flange 110 and a column web 120, which is a weldment.

[0039] The steel beam 200 is formed by cutting and welding steel plates with a thickness of 1-3 cm. After welding, the H-shape formed by the beam flange 210 and the beam web 220 is a weldment.

[0040] Steel columns and steel beams, as different components, are fully welded and connected in the factory workshop, and then transported to the construction site for prefabricated construction wo...

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Abstract

The invention discloses a steel structure anti-seismic joint for a fabricated building and a construction method of the steel structure anti-seismic joint. The anti-seismic joint is located at a crossing portion of a steel beam and a steel column, a pair of channel steel is welded to one side of the steel column, a plug-in groove is formed between the two channel steel, L-shaped angle steel is fixed to the portion, below the channel steel, of the steel column to support the channel steel, and the L-shaped angle steel and the channel steel are connected through first high-strength bolt assemblies. The end of the steel beam is a plug-in area, the plug-in area is fastened by using an engineering plastic bolt and a second high-strength bolt after being inserted into the plug-in groove, whereinthe anti-shear capability of the second high-strength bolt and the first high-strength bolt assemblies is higher than large-earthquake-impact bearing capability. According to the anti-seismic joint,under the condition of different earthquake magnitudes, the engineering plastic bolt and the welding point are disconnected successively, original rigid connection is changed into flexible connection,and because flexible connection is higher in anti-seismic performance, the anti-seismic performance of the joint is more prominent.

Description

technical field [0001] The invention relates to the technical field of steel structure construction installation nodes. Background technique [0002] Steel structure is widely used in high-rise buildings, long-span buildings and industrial buildings due to its advantages of light weight, high strength, uniform material, convenient construction and installation, and short construction period. Steel structure is one of the most widely used building structure forms at present. [0003] Seismic resistance is one of the advantages of steel structure buildings, so the requirements for the seismic performance of steel structure building structures are relatively high, especially the seismic problems of high-rise and super high-rise buildings are more prominent. [0004] It is the future trend to adopt assembly type for the components of steel structure buildings. The so-called assembly type means that all the welding processes should be completed in the factory as much as possible,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/24E04B1/58E04B1/98E04H9/02
CPCE04B1/2403E04B2001/2415E04B2001/2418E04H9/021
Inventor 孔金河
Owner 山东金宇杭萧装配建筑有限公司
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