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Prestressed concrete truss laminated slab and manufacturing method thereof

A technology of prestressed steel truss and manufacturing method, applied in the direction of floor slabs, manufacturing tools, structural elements, etc., can solve the problems of prone to cracks, poor compression resistance, poor shear resistance, poor connectivity, etc., so as to improve the overall connection strength, The effect of ensuring the integrity of the connection and strengthening the firmness of the connection

Active Publication Date: 2021-01-05
山东汇富建设集团建筑工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing laminated boards have poor overall connectivity, poor compression and shear resistance, especially the poor stress capacity at the splicing seam between two substrates, which makes cracks easily appear between adjacent substrates, affecting Overall service life of laminated panels

Method used

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  • Prestressed concrete truss laminated slab and manufacturing method thereof
  • Prestressed concrete truss laminated slab and manufacturing method thereof
  • Prestressed concrete truss laminated slab and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1 to Figure 5The prestressed concrete truss composite slab shown includes a composite slab body 1; the composite slab body 1 includes a prestressed steel truss A, and a concrete pouring layer B poured on the periphery of the prestressed steel truss; the prestressed steel truss A It includes the prestressed reinforcement bottom layer A1 bundled with multiple prestressed reinforcements arranged at intervals along the length direction of the laminated slab body, the transverse reinforcement layer A2 connected with the prestressed reinforcement bottom layer, and the longitudinal reinforcement layer bound and fixed with the transverse reinforcement layer A3; the longitudinal reinforcement layer is arranged parallel to the bottom layer of prestressed reinforcement; the horizontal reinforcement layer is arranged perpendicular to the bottom layer of prestressed reinforcement; The notch 2; the connecting notch 2 is provided with multiple groups of fixing holes 3 ...

Embodiment 2

[0042] Such as Image 6 The structure of the prestressed concrete truss laminated slab shown is basically the same as that of Embodiment 1, wherein, the outer edge of the connecting notch 2 is also provided with an inclined surface 13, which can increase the laminated slab and cast-in-situ concrete when pouring on site. The contact area between the layers can enhance the connection strength between the laminated slab and the cast-in-place concrete layer.

[0043] The preparation method of prestressed concrete truss laminated plate of the present invention, described preparation method comprises the following steps:

[0044] The first step is to place the prestressed steel truss, and place the prestressed steel truss bundled by the bottom layer of prestressed reinforcement, the layer of transverse reinforcement and the layer of longitudinal reinforcement in the concrete mold;

[0045] The second step is the welding of supporting steel plates and positioning steel plates. Multi...

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Abstract

The invention discloses a prestressed concrete truss laminated slab and a manufacturing method thereof. The prestressed concrete truss laminated slab comprises a laminated slab body, wherein the laminated slab body is of an inverted-T-shaped structure, and connecting notches are reserved in the left side and the right side of the laminated slab body; a plurality of fixing holes for allowing connecting steel plates to be arranged are formed in the connecting notches at intervals in the length direction of the laminated slab body, and laminated slab bodies which are adjacent front and back are fixedly connected through the connecting steel plates; and a plurality of supporting steel plates and positioning steel plates are arranged on a prestressed steel truss in a staggered and welded mode,connecting hole sites are reserved in the two ends of the supporting steel plates and the two ends of the positioning steel plates correspondingly, and the supporting steel plates and the positioningsteel plates of laminated slab bodies which are adjacent left and right are fixed through inverted U-shaped clamping plate bolts with mounting holes; According to the prestressed concrete truss laminated slab and the manufacturing method thereof, the connection between laminated slabs is tighter, the connection integrity of the laminated slabs in the horizontal direction is guaranteed, the overallconnection strength between the laminated slabs is improved, and the overall shear resistance of the laminated slabs is enhanced.

Description

technical field [0001] The invention relates to a prestressed concrete truss laminated slab and a manufacturing method thereof, belonging to the technical field of laminated slabs. Background technique [0002] The laminated slab is an assembled integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. The laminated floor slab has good integrity, and the upper and lower surfaces of the slab are smooth, which is convenient for decoration of the facing layer. However, the existing laminated boards have poor overall connectivity, poor compression and shear resistance, especially the poor stress capacity at the splicing seam between two substrates, which makes cracks easily appear between adjacent substrates, affecting The overall service life of the laminate. Therefore, in order to solve the above problems, it is urgent to design a prestressed concrete truss laminated slab and a manufacturing method thereof. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/17E04C5/08B28B1/14B28B23/04
CPCE04B5/17E04C5/08B28B1/14B28B23/04
Inventor 金鑫李菲菲陈喜李宁庄花洲宋欣张方义
Owner 山东汇富建设集团建筑工业有限公司