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High-strength steel column-ordinary steel beam-low yield point steel T-shaped steel recoverable functional joint

A low-yield point steel and recovery function technology, which is applied in the field of high-strength steel columns-ordinary steel beams-low-yield point steel T-steel recoverable function nodes, can solve the problems of repair difficulties, great influence on the seismic performance of nodes, and the energy consumption capacity of nodes low level problem

Pending Publication Date: 2020-10-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When welded joints are used, the installation speed is slow, and the seismic performance of the joints is greatly affected by the quality of on-site welding; when bolted joints are used, the energy dissipation capacity of traditional joints is low, and post-earthquake repairs are difficult

Method used

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  • High-strength steel column-ordinary steel beam-low yield point steel T-shaped steel recoverable functional joint
  • High-strength steel column-ordinary steel beam-low yield point steel T-shaped steel recoverable functional joint
  • High-strength steel column-ordinary steel beam-low yield point steel T-shaped steel recoverable functional joint

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as Figure 1-Figure 9 As shown, the high-strength steel column-ordinary steel beam-low yield point steel T-shaped steel recoverable function node, including I-shaped high-strength steel columns, I-shaped ordinary steel beams, the first T-shaped steel and the second T-shaped steel with low yield point Section steel, connecting plate 10, first bolt 11, second bolt 12, third bolt 13 and stiffener 14.

[0049] The first T-shaped steel and the second T-shaped steel are rolled or welded T-shaped steels, and low yield point steels of LYP100, LYP160, LYP225 or Q235 grades are used to ensure their energy dissipation capacity. The first T-shaped steel is composed of the first T-shaped steel wing edge 6 and the first T-shaped steel web 7, and the second T-shaped steel is composed of the second T-shaped steel flange 8 and the second T-shaped steel web 9; the first T-shaped steel is arranged above the second T-shaped steel, and the first The T-shaped steel web 7 is arranged pa...

Embodiment 2

[0077] The difference between this embodiment and embodiment 1 is:

[0078] Such as Figure 10-Figure 14 As shown, the shear member adopts the third T-shaped steel. The third T-shaped steel flange 16 abuts against the high-strength steel column flange 1 , and the third T-shaped steel web 17 is close to the common steel beam web 5 . The third T-shaped steel flange 16 has a fifth through hole 25 in the factory in advance, and the high-strength steel column flange 1 has a sixth through hole 26 in the factory in advance, and the fifth through hole 25 can be passed through the fourth bolt 18 in the factory or on site. The hole 25 and the sixth through hole 26 connect the third T-shaped steel and the high-strength steel column. The fourth bolt 18 is a high-strength bolt. The 3rd T-shaped steel web 17 has the second through hole 22 in factory in advance, passes the second through hole 22 and the second elongated through hole 20 and passes the second through hole 22 and the second ...

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Abstract

The invention relates to a high-strength steel column-ordinary steel beam-low yield point steel T-shaped steel recoverable functional joint. The steel comprises a high-strength steel column, a ordinary steel beam, a low-yield-point steel, a first T-shaped steel and a second T-shaped steel, and a shear part. first and The flanges of both the first T-shaped steel and the second T-shaped steel are provided with first elongated through holes and both sides of the T-shaped steels are provided with non-adhesive layers. The flange of the high-strength steel column is provided with a first through hole. Both the first T-shaped steel and the second T-shaped steel are connected with the high-strength steel column by a first bolt passing through the first elongated through hole and a first through hole. Both the first T-shaped steel and the second T-shaped steel are connected with the ordinary steel beam by a second bolt. A web of the ordinary steel beam is provided with a second elongated through hole and a seventh through hole, and an unbonded layer is provided on both sides of the web. The shear part is provided with a second through hole. The shear part is connected with the ordinary steel beam by a third bolt passing through the second elongated through hole, the seventh through hole and the second through hole. The steel is simple in design and convenient in processing. The first T-shaped steel and second T-shaped steel are easy to disassemble and replace after shaking, the seismic performance and functional recoverability of the joint can be improved.

Description

technical field [0001] The invention relates to the technical field of structural engineering steel structures, in particular to a high-strength steel column-common steel beam-low yield point steel T-shaped steel recoverable function node. Background technique [0002] With the construction of a large number of multi-high-rise and super high-rise buildings, steel structures have been widely used at home and abroad. The traditional steel beam-column joint forms commonly used in structural design today include flange and web full weld connection, flange weld connection and web bolt connection, flange and web full bolt connection, etc. When welded connections are used, the installation speed is slow, and the seismic performance of the nodes is greatly affected by the quality of on-site welding; when bolted connections are used, the energy dissipation capacity of traditional nodes is low, and post-earthquake repairs are difficult. At present, the development and improvement of ...

Claims

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Application Information

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IPC IPC(8): E04B1/24E04B1/98E04H9/02
CPCE04B1/24E04B1/2403E04B1/98E04B2001/2415E04B2001/2418E04H9/021E04H9/024
Inventor 胡方鑫潘建荣王湛
Owner SOUTH CHINA UNIV OF TECH
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