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Energy dissipation node of prefabricated assembly concrete structure

A concrete structure and prefabricated assembly technology, which is applied in the direction of building components, building structures, protective buildings/shelters, etc., can solve the problems that it is difficult to ensure the construction quality of the core area of ​​prefabricated beam-column joints, and there are many wet operations. Good seismic effect, increased safety and reliability, and small building space

Pending Publication Date: 2020-02-18
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the beam-column connections of existing prefabricated buildings use wet connections, using cast-in-place concrete post-casting belts to connect the beam-columns, and post-casting concrete in the core area of ​​the joints. and other construction techniques, there are many wet operations on site and it is difficult to ensure the construction quality of the core area of ​​prefabricated beam-column joints

Method used

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  • Energy dissipation node of prefabricated assembly concrete structure
  • Energy dissipation node of prefabricated assembly concrete structure
  • Energy dissipation node of prefabricated assembly concrete structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 1-Figure 8 , the prefabricated concrete structure energy dissipation joints, including prefabricated reinforced concrete columns (1) and prefabricated reinforced concrete beams (4) are connected at right angles, energy dissipation angle Beams (4) are connected at oblique angles, and the specific features are: the prefabricated reinforced concrete columns (1) are connected at right angles to the prefabricated reinforced concrete beams (4) and the energy-dissipating angle braces (9) are obliquely connected between them. The corner connections are all connected through prefabricated reinforced concrete columns (1) and embedded parts on prefabricated reinforced concrete beams (4).

Embodiment 2

[0027] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0028] The structure in which the prefabricated reinforced concrete column (1) is connected at right angles to the prefabricated reinforced concrete beam (4) is: there is a column embedded part A (3) on the top side wall of the prefabricated reinforced concrete column (1), and the prefabricated reinforced concrete beam (4) Beam embedded parts A (3) on the end face are matched and fixedly connected by high-strength bolts (10).

[0029] The column embedded part A (2) is a "T"-shaped member, and its anchor plate (2-2) has multiple anchor bars (2-3), which are embedded in the prefabricated reinforced concrete column (1) , there are multiple evenly distributed bolt holes on the connecting plate (2-1) perpendicular to the anchor plate (2-2); (3-2) has multiple anchor bars (3-3) pre-buried in the prefabricated reinforced concrete beam (4), and two parallel connectin...

Embodiment 3

[0034] like Figure 1-Figure 8 As shown, the prefabricated assembled beam-column energy-dissipating steel joint includes prefabricated reinforced concrete column (1), column embedded part A (2), beam embedded part A (3), prefabricated reinforced concrete beam (4), column prefabricated Embedded part B (5), beam embedded part B (6), column connecting plate (7), beam connecting plate (8), energy-dissipating support (9), high-strength bolts (10).

[0035] Steps of factory processing prefabricated components:

[0036] The column embedded part A (2) is composed of an anchor bar, an anchor plate and a steel plate, the anchor bar and the anchor plate are connected by a perforated weld, and the anchor plate is welded to a steel plate, such as Figure 5 shown.

[0037] The beam embedded part A (3) is composed of an anchor bar, an anchor plate and two steel plates, the anchor nail and the anchor plate are connected by a perforated weld, and the anchor plate is welded to the two steel p...

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Abstract

The invention discloses an energy dissipation node of a prefabricated assembly concrete structure. The energy dissipation node comprises a prefabricated reinforced concrete column and a prefabricatedreinforced concrete beam which are connected at a right angle, and an energy dissipation angle brace is connected at an oblique angle between the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam; the energy dissipation node is specifically characterized in that the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are connected at the right angle and the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are connected with the energy dissipation angle brace at the oblique angle through embedded parts on the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam. The energy dissipation node of the prefabricated assembly concrete structure has thecharacteristics of strong energy dissipation capacity, good ductility and good shock absorption effect, and meanwhile, the beam-column collision can be avoided; moreover, the construction is simple and convenient, easy to realize, low in cost, small in occupied building space, the using efficiency of the building space is not affected. The new technology can be widely used in assembled integratedframe structures and has a wide engineering application prospect.

Description

technical field [0001] The invention discloses an energy-dissipating node of a prefabricated assembled concrete structure, which belongs to the technical field of anti-seismic, energy-dissipating and shock-absorbing engineering structures. [0002] technical background [0003] With the continuous and rapid development of the national economy, the improvement of energy conservation and environmental protection requirements, and the continuous increase of labor costs, the research on prefabricated concrete buildings in my country has gradually heated up in the past ten years. The use of prefabricated concrete structures can effectively save resources and energy, improve the efficiency of materials in achieving building energy conservation and structural performance, reduce site construction requirements for site and other environmental conditions, reduce construction waste and adverse impacts on the environment, and improve construction efficiency. Function and structural perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/20E04B1/21E04B1/98E04H9/02
CPCE04B1/20E04B1/215E04B1/98E04H9/025
Inventor 胡宝琳吴仁杰刘建康
Owner SHANGHAI UNIV
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