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Replaceable energy-dissipating connection components for beam-to-column connections of fabricated frames

A beam-column connection and component connection technology, which is applied to building components, protected buildings/shelters, building types, etc., can solve problems such as replacement and damage to energy-consuming parts, and achieve easy repair, good energy-dissipating performance, and convenient The effect of production and application

Active Publication Date: 2018-09-21
SOUTHEAST UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the energy-dissipating components of the DDC connection are arranged in the column node area, and when the ductile energy-dissipating components are severely damaged after an earthquake, they cannot be replaced

Method used

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  • Replaceable energy-dissipating connection components for beam-to-column connections of fabricated frames
  • Replaceable energy-dissipating connection components for beam-to-column connections of fabricated frames
  • Replaceable energy-dissipating connection components for beam-to-column connections of fabricated frames

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Embodiment Construction

[0037] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0038] The technical problems addressed by the present invention are as follows:

[0039] 1) The structure of the connecting nodes is the key to the seismic performance of the prefabricated concrete frame structure. The components of the prefabricated concrete structure are generally joined at the joints, so that the performance of the connection is particularly important in the prefabricated concrete structure. The connection nodes are the necessary channels for the internal force transmission between components. Under strong earthquakes, the internal force borne by the beam-column joint connection is relatively large, so plastic deformation is more likely to occur. After the accumulation of plastic damage, it is easy to fail and fracture, resulting in the loss of structural integrity.

[0040] 2) The connection construction of joints is a key...

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Abstract

The present invention proposes and invents a replaceable energy-dissipating connection assembly applied to the beam-column connection of the assembled frame. It is composed of rods, restraining parts and connecting parts. One end is connected to the node anchor reinforcement embedded in the column, and the other end is connected to the beam end longitudinal reinforcement embedded in the beam. Under the action of earthquake, the energy-dissipating steel bar yields before other components and components and uses plastic hysteresis to dissipate the seismic energy. This kind of replaceable energy-dissipating connection component is used for the connection of prefabricated beams and columns in prefabricated frame structures. It can induce the plastic damage of the structure to concentrate on the energy-dissipating steel rods under moderate and large earthquakes, and can improve the seismic ductility of the structure while avoiding the damage of beams and columns. For component damage, the structure can be quickly repaired by simply replacing energy-consuming components after an earthquake, so that the post-earthquake repair efficiency of the structure is significantly improved. The application of replaceable energy-consuming connection components meets the requirements of building industrialization development.

Description

technical field [0001] The invention belongs to the field of construction engineering and relates to an assembled concrete frame structure, in particular to a replaceable energy-consuming connection assembly applied to the beam-column connection of the assembled frame and a construction method thereof. Background technique [0002] In recent decades, prefabricated concrete structures have been favored by engineers more and more due to their characteristics of industrial production and prefabricated construction, and have been widely used and developed rapidly all over the world. With the in-depth study of performance-based seismic design theory, people have higher and higher requirements for the repairability of structures after earthquakes, and the research and application of high-ductility energy-dissipating components have received more and more attention. In developed countries and regions such as China, the practice of adding ductile energy-dissipating components to pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021
Inventor 吴京谢鲁齐孟少平
Owner SOUTHEAST UNIV
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