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Assembly type self-resetting concrete frame low-damage joint with modularized energy dissipation part

A modular and prefabricated technology, applied in building components, protective buildings/shelters, earthquake-proof, etc., can solve problems such as poor energy consumption capacity, improve energy consumption capacity, reduce residual deformation, and speed up construction progress. Effect

Active Publication Date: 2020-02-28
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

[0005] Technical problem: In order to solve the shortcomings of poor energy dissipation capacity of traditional assembled self-resetting prestressed structures, the present invention provides an assembled self-resetting concrete frame node with scalability, low damage, and significant energy dissipation effect, so that assembly The structure has excellent seismic performance and self-resetting ability under high-intensity earthquakes

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  • Assembly type self-resetting concrete frame low-damage joint with modularized energy dissipation part
  • Assembly type self-resetting concrete frame low-damage joint with modularized energy dissipation part
  • Assembly type self-resetting concrete frame low-damage joint with modularized energy dissipation part

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Embodiment Construction

[0034] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] Such as Figure 1-Figure 12 As shown, the present invention discloses a modular self-resetting concrete frame low-damage joint structure of energy-consuming parts. The idea of ​​the invention is to pre-embed a strip steel part at the end of a prefabricated reinforced concrete beam on the basis of a prestressed assembled joint. Prefabricated steel sleeves, pre-embedded connecting steel plates on prefabricated reinforced concrete columns, and setting mild steel dampers on both sides of the steel web, using the low yield a...

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Abstract

The invention provides an assembly type self-resetting concrete frame low-damage joint with a modularized energy dissipation part. The assembly type self-resetting concrete frame low-damage joint comprises a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, a column end pre-embedded steel plate, a beam end pre-embedded profile steel sleeve, a soft steel damper, anunbonded prestressed steel strand, a prestressed steel strand pore channel and high-strength reamed hole bolts, wherein one side of the column end pre-embedded steel plate is an anchoring end and theother side of the column end pre-embedded steel plate is a column end butt joint plate; a shear key is welded on an inner wall of the beam end pre-embedded profile steel sleeve; a beam end butt jointplate is arranged at a beam end profile steel web. The soft steel damper is arranged at the beam end profile steel web and is fastened at two sides of the web through the high-strength reamed hole bolts; and beam column components are connected through the prestressed steel strand.

Description

technical field [0001] The invention relates to an assembled self-resetting concrete frame low-damage node, in particular to an assembled self-resetting concrete frame low-damage node with modularized energy consumption parts. Background technique [0002] my country's prefabricated structure mainly adopts the prefabricated integral type, that is, the theoretical model of "equivalent to cast-in-place". The seismic performance of the assembled monolithic structure is close to that of the cast-in-place structure, but the joints still need to be cast-in-situ, and the degree of assembly is not high. The post-tensioned prestressed prefabricated structure formed by splicing prefabricated components through prestressed steel strands not only facilitates construction, but also can withstand the bending moment at the beam end during the use stage. The residual deformation is greatly reduced, and the repair cost and indirect loss of the post-earthquake structure are greatly reduced. ...

Claims

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Application Information

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IPC IPC(8): E04B1/21E04B1/98E04H9/02
CPCE04B1/21E04B1/215E04B1/98E04H9/021E04H9/025
Inventor 李亚东丁幼亮耿方方
Owner SOUTHEAST UNIV
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