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Beam end controllable energy consumption plastic hinge

A plastic hinge, friction energy dissipation technology, applied in building components, building types, earthquake resistance, etc., can solve problems such as anchor release, broken wire, prestress loss, etc.

Pending Publication Date: 2021-07-30
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many years of research results and engineering practice have shown that during construction and later use of prestressed tendons, there will be loss of prestress, and even unforeseen damage such as detachment and broken wires, which may limit its use in actual engineering. Applications

Method used

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  • Beam end controllable energy consumption plastic hinge
  • Beam end controllable energy consumption plastic hinge
  • Beam end controllable energy consumption plastic hinge

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] Below in conjunction with example the present invention is described in further detail.

[0030] Such as figure 1 As shown, the controllable energy-dissipating plastic hinge at the beam end of the present invention includes a mechanical hinge 1 , a disc spring self-resetting device 2 and a frictional energy-dissipating device 3 .

[0031] Such as figure 2 As shown, the mechanical hinge 1 of the present invention is formed by welding two lugs-8 (steel plates) and a connecting plate 7 (steel plates) to form a U-shaped joint-4, and consists of two lugs-2 13 (steel plates) and a connecting plate 7 (steel plates) are welded to form U-shaped joint two 5, and U-shaped joint one 4 and U-shaped joint two 5 are connected with pin 6 to form a mechanical hinge. Connecting holes 9 are provided on the connecting plates 7 of the first U-shaped joint 4 and the second U-shaped joint 5 to facilitate the connection with the prefabricated components. A circular hole is set around the l...

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Abstract

Disclosed is a beam end controllable energy dissipation plastic hinge. The beam end controllable energy dissipation plastic hinge comprises a mechanical hinge; disc spring self-resetting devices are arranged on the inner sides of the upper end and the lower end of the mechanical hinge; and friction energy dissipation devices are arranged on the front end face and the rear end face of the mechanical hinge. The structure can be induced to form a reasonable damage mechanism under the earthquake action, the anti-seismic performance of a fabricated concrete frame structure is improved, passive control over the structure under the earthquake action is achieved, the purpose that the structure function can be recovered is achieved, and rapid development of the fabricated concrete frame structure is promoted.

Description

technical field [0001] The invention relates to the technical field of energy-dissipating and shock-absorbing structures and assembled concrete frames with recoverable functions, in particular to a controllable energy-dissipating plastic hinge at the end of a beam. Background technique [0002] Due to its short construction period and low environmental impact, prefabricated buildings have become an important direction for realizing green buildings and industrialization. However, the integrity of the prefabricated concrete frame structure is poor, and the seismic performance is low. Whether the prefabricated concrete frame structure can be applied in high-intensity areas remains to be discussed. [0003] In order to improve the integrity of the prefabricated concrete frame structure, wet connection technology is generally used in engineering, that is, the assembled integral type. This wet connection technology can make the seismic performance of the prefabricated concrete st...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021E04H9/025E04B1/98
Inventor 史庆轩马立成王斌
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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