Built-in corrugated steel plate reinforced concrete T-shaped prefabricated part and manufacturing process

A technology for reinforcing concrete and corrugated steel plates, applied in building components, building structures, columns, etc., can solve the problem of poor overall stiffness of prefabricated shear walls and special-shaped columns, shear failure of components, and sudden changes in shear wall stiffness. and other problems, to achieve the effect of good overall performance of the structure, increased bending moment of inertia, and strong shear resistance.

Pending Publication Date: 2021-01-26
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The overall rigidity of prefabricated shear walls and special-shaped columns is worse than that of cast-in-place structures
Especially at the joints where the upper and lower members are spliced, the stiffness is prone to sudden changes, resulting in shear slip damage that is prone to occur at the site of sudden changes in the stiffness of the shear wall
[0005] 2. In the case of relatively large axial compression of shear wall components, buckling damage may occur to prefabricated shear wall components. At this time, the compressed steel bars are buckled and the concrete is crushed, eventually leading to structural damage
[0006] 3. When the prefabricated shear wall is relatively low, under the action of horizontal force, oblique diagonal cracks or cross oblique cracks appear on the wall, causing the concrete to be crushed and peeled off in pieces, and the stirrups bulge or break , the final member undergoes shear baroclinic failure

Method used

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  • Built-in corrugated steel plate reinforced concrete T-shaped prefabricated part and manufacturing process
  • Built-in corrugated steel plate reinforced concrete T-shaped prefabricated part and manufacturing process
  • Built-in corrugated steel plate reinforced concrete T-shaped prefabricated part and manufacturing process

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Embodiment 1

[0050] like figure 1 , 3 , 5, and 7, the present embodiment discloses a T-shaped special-shaped steel plate, a corrugated steel plate 1, concrete 12, a steel strip 2 and a horizontal butt joint steel plate 3; The end of 1 is vertically connected to the middle of another corrugated steel plate 1; the corrugated steel plate 1 has an isosceles trapezoidal waveform;

[0051] The side surface of the T-shaped special-shaped steel plate is welded with steel strips 2 to form a steel skeleton, and concrete 12 is poured on the steel skeleton to form the T-shaped prefabricated component of the built-in corrugated steel plate reinforced concrete; The cross-section is perpendicular to the intersection area 6 of two directions, the corrugated steel plate 1 has a waveform from an isosceles trapezoid to a rectangle with one side opening, and the steel strip 2 perpendicular to the corrugated steel plate 1 is connected to the rectangular cross-section by welding The inner edge of the rectangula...

Embodiment 2

[0067] like figure 2 , 4 , 6, and 7, this embodiment discloses a built-in corrugated steel plate reinforced concrete T-shaped column member, which is different from embodiment 1 in that the column body length of the built-in corrugated steel plate reinforced concrete T-shaped column member in this embodiment The thickness of the column is 1043mm, the column thickness is 300mm, the ratio of the length h of the column body to the column thickness b is less than or equal to 4, the thickness of the corrugated steel plate 1 arranged in it is 4-6mm, and the waveform is isosceles trapezoid. The gradation of the concrete poured by the T-shaped column member is grade two, and the maximum particle size of the coarse aggregate shall not exceed 25mm. In order to ensure that the concrete can be vibrated and compacted smoothly, the wavelength 10 of the corrugated steel plate arranged in the T-shaped column member is 40-60 mm, and the maximum bending angle 9 is 30 degrees.

[0068] In the...

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Abstract

The invention discloses a built-in corrugated steel plate reinforced concrete T-shaped prefabricated part and a manufacturing process. The built-in corrugated steel plate reinforced concrete T-shapedprefabricated part comprises a T-shaped special-shaped steel plate, corrugated steel plates, concrete, steel lacing bars and horizontal butt joint steel plates; the T-shaped special-shaped steel plateis an assembly type component and is formed by perpendicularly connecting the end part of one corrugated steel plate with the middle part of the other corrugated steel plate; the wave shape of the corrugated steel plates is an isosceles trapezoid; and the steel lacing bars are welded to the side surface of the T-shaped special-shaped steel plate to form a steel framework, and the concrete is poured on the steel framework to form the built-in corrugated steel plate reinforced concrete T-shaped prefabricated part. The corrugated steel plates are used for replacing vertical distribution ribs ofa traditional shear wall and longitudinal ribs in special-shaped columns to form regional confined concrete, the confined strength of the concrete can be effectively improved, and therefore the vertical load bearing capacity of the component is greatly improved.

Description

technical field [0001] The invention relates to the field of building assembly structure design, in particular to a T-shaped prefabricated component reinforced with corrugated steel plates and a manufacturing process thereof. Background technique [0002] Nowadays, with the rapid development of construction industrialization represented by prefabricated buildings in my country, prefabricated shear wall structures are more and more widely used in residential buildings. The prefabricated shear wall structure is mainly used in high-rise, small high-rise residential buildings and other buildings. It has the advantages of high degree of industrialization, controllable cost, and faster construction speed than cast-in-place shear wall. However, the current prefabricated shear walls still have many deficiencies in construction, such as: more complex connections, more work at nodes, low construction efficiency, poor construction accuracy, and high technical requirements for workers. ...

Claims

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Application Information

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IPC IPC(8): E04B1/00E04B2/00E04C3/36E04G21/00
CPCE04B1/00E04B2/00E04C3/36E04G21/00
Inventor 徐金俊王旭黄新良汪小鹏陈宗平伍云天赵新宇余勇
Owner NANJING UNIV OF TECH
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