Recoverable functional joint with high-strength steel column, common steel beam and low-yield-point steel angles

A low-yield point steel and recovery function technology, which is applied in the field of high-strength steel columns-common steel beams-low yield point steel angle steel restoreable function nodes, which can solve the problem of large end shear force, inability to quickly disassemble and replace angle steel, beam-column Problems such as poor node recoverability

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

However, it has the following technical problems: the angle steel bears a large shear force at the end of the steel beam under the action of gravity and earthquake, which makes it impossible to quickly disassemble and replace the angle steel after the earthquake, and the functional recoverability of the beam-column joints is not good

Method used

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  • Recoverable functional joint with high-strength steel column, common steel beam and low-yield-point steel angles
  • Recoverable functional joint with high-strength steel column, common steel beam and low-yield-point steel angles
  • Recoverable functional joint with high-strength steel column, common steel beam and low-yield-point steel angles

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as Figure 1-Figure 9 As shown, the high-strength steel column-ordinary steel beam-low yield point steel angle steel recoverable function node, including the I-shaped high-strength steel column, the I-shaped ordinary steel beam, the first angle steel and the second angle steel of low yield point steel, and the connection Plate 10 , first bolt 11 , second bolt 12 and third bolt 13 .

[0050] The first angle steel and the second angle steel are rolled or welded, and LYP100, LYP160, LYP225 or Q235 steel with low yield point is used to ensure its energy dissipation capacity. The other limb 7 is formed, and the second angle steel is made up of one limb 8 of the second angle steel and the other limb 9 of the second angle steel; the first angle steel is arranged above the second angle steel, and the other limb 7 of the first angle steel and the other One limb 9 is arranged in parallel.

[0051] The beam adopts Q355, Q390 or Q420 ordinary steel to meet the necessary bear...

Embodiment 2

[0079] The difference between this embodiment and embodiment 1 is:

[0080] Such as Figure 10-Figure 14 As shown, the shear member adopts two third angle steels, one limb 15 of the two third angle steels abuts against the flange 1 of the high-strength steel column, and the other limbs 16 of the two third angle steels are respectively arranged on two sides of the web 5 of the ordinary steel beam. Side and clamp the common steel beam web 5. The two third angle steel limbs 15 have a fifth through hole 24 in advance in the factory, and the high-strength steel column flange 1 has a sixth through hole 25 in the factory in advance, which can be passed through the fifth through the fourth bolt 17 in the factory or on site. The through hole 24 and the sixth through hole 25 connect the two third angle steels and the high-strength steel column. The fourth bolt 17 is a high-strength bolt. The other limbs 16 of two 3rd angle steels have the second through hole 21 in factory in advance, p...

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Abstract

The invention relates to a recoverable functional joint with a high-strength steel column, a common steel beam and low-yield-point steel angles. The recoverable functional joint comprises the high-strength steel column, the common steel beam, the first low-yield-point steel angle, the second low-yield-point steel angle and shear resisting pieces. First strip through holes are formed in the wing edges of the first steel angle and the second steel angle, non-bonding layers are arranged on the two sides of the first steel angle and the second steel angle, first through holes are formed in a flange of the high-strength steel column, and the first steel angle and the second steel angle are connected with the high-strength steel column through first bolts penetrating through the first strip through holes and the first through holes; the first steel angle and the second steel angle are connected with the common steel beam through second bolts; and second strip through holes and seventh through holes are formed in a common steel beam web plate, non-bonding layers are arranged on the two sides of the common steel beam web plate, second through holes are formed in the shear resisting pieces,and the shear resisting pieces are connected with the common steel beam through third bolts penetrating through the second strip through holes, the seventh through holes and the second through holes.The recoverable functional joint is easy and convenient to design and construct, the first steel angle and the second steel angle are convenient to disassemble and replace after an earthquake, and the earthquake resistant property and function 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 high-strength steel columns-ordinary steel beams-low yield point steel angle steel recoverable function joints. 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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Patent Type & Authority Applications(China)
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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