SP prestressed hollow slab and assembly structure

Abstract

The utility model discloses an SP prestressed hollow slab and an assembly structure, the SP prestressed hollow slab comprises a slab body, and the left end and the right end of the slab body are symmetrically provided with dovetail grooves. The SP prestressed hollow slab assembly structure comprises a plurality of SP prestressed hollow slabs, the adjacent SP prestressed hollow slabs are connected through a slab strip, the two ends of the slab strip are provided with protruding parts matched with the dovetail grooves, and the protruding parts are tightly matched with the dovetail grooves. According to the utility model, the problem that cracks are generated after the plates are spliced can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of SP prestressed hollow slabs, in particular to a SP prestressed hollow slab and an assembly structure. Background Art

[0002] SP prestressed hollow slab is a concrete prestressed structural component with many advantages such as environmental protection, energy saving, sound insulation, earthquake resistance, flame retardancy, etc. SP prestressed hollow slab is an important material in the construction industry. It has received extensive attention and use for its unique performance and wide range of application scenarios. At present, cracks are prone to occur after adjacent slabs are assembled during the construction process.

[0003] Therefore, how to solve the defects of the above-mentioned prior art has become the direction of efforts of technicians in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a SP prestressed hollow slab and an assembly structure, which can completely solve the deficiencies of the above-mentioned prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A SP prestressed hollow slab comprises a slab body, wherein dovetail grooves are symmetrically arranged at left and right ends of the slab body.

[0007] Furthermore, a central hole is arranged in the middle of the plate body along the length direction, and four circular holes are symmetrically arranged on both sides of the central hole.

[0008] Furthermore, the cross-sectional shape of the central hole is elliptical.

[0009] A SP prestressed hollow slab assembly structure comprises a plurality of the above-mentioned SP prestressed hollow slabs, wherein adjacent SP prestressed hollow slabs are connected by a plate strip, and protrusions matching with dovetail grooves are provided at both ends of the plate strip, and the protrusions are tightly matched with the dovetail grooves.

[0010] Furthermore, the bottoms of both left and right ends of the SP prestressed hollow slab are supported on the frame beam, and edge steel baffles are installed at the ends. A filling body is provided between the edge steel baffle and the end of the SP prestressed hollow slab, and the filling body extends into the center hole and the circular hole.

[0011] Furthermore, the filling body is slightly expanded fine stone concrete, and longitudinal tie bars are arranged in the filling body.

[0012] Furthermore, the edge steel baffle side plates extend edge plate end tie bars into the filling body.

[0013] Furthermore, epoxy resin mortar is provided between the bottom of both ends of the SP prestressed hollow slab and the frame beam.

[0014] Compared with the prior art, the beneficial effect of the utility model is that it can effectively solve the problem of cracks generated after the boards are assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the SP prestressed hollow slab of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the SP prestressed hollow slab assembly structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the longitudinal section structure of the SP prestressed hollow slab assembly structure of the utility model. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0019] like Figure 1 As shown, a SP prestressed hollow slab comprises a slab body 1, and dovetail grooves 2 are symmetrically arranged at left and right ends of the slab body 1.

[0020] A central hole 3 is provided in the middle of the plate body 1 along the length direction, and four circular holes 4 are symmetrically provided on both sides of the central hole 3. Moreover, the cross-sectional shape of the central hole 3 is an ellipse.

[0021] like Figure 2 and Figure 3 As shown, an SP prestressed hollow plate assembly structure includes a plurality of the above-mentioned SP prestressed hollow plates, and adjacent SP prestressed hollow plates are connected by plate strips 4. Both ends of the plate strips 4 are provided with raised portions 5 matching the dovetail grooves, and the raised portions 5 are tightly matched with the dovetail grooves 2.

[0022] In this embodiment, the bottom ends of the SP prestressed hollow slabs at both ends are supported on the frame beam 6, and edge steel baffles 7 are installed at the ends. A filling body 8 is provided between the edge steel baffle 7 and the ends of the SP prestressed hollow slabs, and the filling body 8 extends into the center hole 3 and the circular hole 4.

[0023] The filling body 8 is slightly expanded fine stone concrete, and longitudinal tie bars 9 are arranged in the filling body 8. The side wall of the edge steel baffle 7 extends edge plate end tie bars 10 into the filling body 8. Epoxy resin mortar 11 is arranged between the bottom of both ends of the SP prestressed hollow slab and the frame beam 6.

[0024] The SP prestressed hollow slab of the utility model is assembled with the slab strip through the dovetail groove, and the mortise and tenon structure is formed after the post-cast concrete solidifies, which can effectively solve the problem of cracks generated after the slabs are assembled.

[0025] The practical scenarios are not limited to steel structures. The plate strips are connected to brick-concrete structures, and the steel bars of the frame structure can be anchored in the ring beam. The dovetail groove wall panel technology also solves the problem of cracks that are easy to occur after the lightweight partition wall is assembled.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A SP prestressed hollow slab, comprising a slab body, characterized in that: Dovetail grooves are symmetrically arranged at the left and right ends of the plate body, a center hole is arranged in the middle of the plate body along the length direction, and four circular holes are symmetrically arranged on both sides of the center hole. The cross-sectional shape of the center hole is an ellipse.

2. A SP prestressed hollow slab assembly structure, characterized in that: It comprises a plurality of SP prestressed hollow slabs according to claim 1, wherein adjacent SP prestressed hollow slabs are connected by plate strips, and protrusions matching the dovetail grooves are provided at both ends of the plate strips, and the protrusions are tightly matched with the dovetail grooves.

3. The assembly structure according to claim 2, characterized in that: The bottoms of both left and right ends of the SP prestressed hollow slab are supported on the frame beam, and edge steel baffles are installed at the ends. A filling body is provided between the edge steel baffle and the end of the SP prestressed hollow slab, and the filling body extends into the center hole and the circular hole.

4. The assembly structure according to claim 3, characterized in that: The filling body is slightly expanded fine stone concrete, and longitudinal tie bars are arranged in the filling body.

5. The assembly structure according to claim 4, characterized in that: The edge steel baffle side plates extend edge plate end tie bars into the filling body.

6. The assembly structure according to claim 5, characterized in that: Epoxy resin mortar is provided between the bottoms of both ends of the SP prestressed hollow slab and the frame beam.

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