CN212506975U - A prestressed concrete hollow floor slab - Google Patents
A prestressed concrete hollow floor slab Download PDFInfo
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- CN212506975U CN212506975U CN202020792533.9U CN202020792533U CN212506975U CN 212506975 U CN212506975 U CN 212506975U CN 202020792533 U CN202020792533 U CN 202020792533U CN 212506975 U CN212506975 U CN 212506975U
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- prestressed concrete
- plate body
- floor slab
- hollow floor
- concrete hollow
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Abstract
本实用新型公开了一种预应力混凝土空心楼板，涉及预制楼板技术领域，包括板体、横筋、纵筋，横筋设置于板体顶面，纵筋设置于板体顶面及底面，板体侧壁设有侧壁槽，板体顶面两侧设有横筋槽；本实用新型中的一种预应力混凝土空心楼板，其楼板拼接处不易开裂、抗裂性强、整体性好，而且不易破损缺角，实际生产和吊装、运输十分便利，此外本实用新型可实现叠合生产，显著降低生产场地需求，节省了大量用地成本，而且生产周期快，可沿用传统的楼板生产工艺，成熟、可靠。
The utility model discloses a prestressed concrete hollow floor slab, which relates to the technical field of prefabricated floor slabs. The walls are provided with sidewall grooves, and the two sides of the top surface of the board are provided with transverse rib grooves; the prestressed concrete hollow floor slab in the utility model is not easy to crack at the splicing part of the floor slabs, has strong crack resistance, good integrity, and is not easy to be damaged. The actual production, hoisting, and transportation are very convenient. In addition, the utility model can realize superimposed production, significantly reduce the demand for production sites, save a lot of land costs, and the production cycle is fast, and the traditional floor slab production technology can be used, which is mature and reliable. .
Description
Technical Field
The utility model relates to a precast floor technical field, concretely relates to prestressed concrete hollow floor.
Background
The hollow prefabricated component board of reinforced concrete that now commonly used is rectangular shape, and the centre is opened has the through-hole, and this kind of hollow prefabricated component board has advantages such as the cost is low, convenient construction, preparation are easy, when assembling the floor, shelves hollow prefabricated component board on wall or roof beam earlier, then hangs mould at adjacent prefabricated component board concatenation department and pours the seam with concrete, forms hollow floor, but this kind of hollow prefabricated component board assembles the floor and has not enoughly: the hanging mould at the splicing position of the adjacent prefabricated component plates is grouted by concrete, the splicing position is easy to crack and poor in crack resistance, and the seam position is easy to leak; the connection force between the adjacent prefabricated component plates is weak, the integrity of the assembled floor slab is poor, after long-time exploration and improvement, the bottoms of the two sides of the slab body are provided with lower convex blocks which are tightly leaned to play a role of a template, concrete can be directly poured in the groove-shaped cavity, and a mould is not required to be hung at the splicing position; the design improvement well solves the problems of easy cracking, poor crack resistance, poor integrity and the like at the splicing part. However, the construction brings great inconvenience to actual production, hoisting and transportation, the damage rate of the corner convex blocks is high, the production cost cannot be effectively controlled, the construction cannot be popularized all the time, and the splicing problem of the rectangular prefabricated member floor slab at the present stage is still a main technical difficulty.
Disclosure of Invention
To the defect that exists among the prior art, the utility model aims to provide a prestressed concrete hollow floor.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the utility model provides a hollow floor of prestressed concrete, includes the plate body, horizontal muscle, indulges the muscle, horizontal muscle sets up in the plate body top surface, indulges the muscle and sets up in plate body top surface and bottom surface, and the plate body lateral wall is equipped with the lateral wall groove, and plate body top surface both sides are equipped with horizontal muscle groove.
On the basis of the technical scheme, the transverse rib groove comprises a first transverse rib groove and a second transverse rib groove.
On the basis of the technical scheme, the first transverse rib groove and the second transverse rib groove are perpendicular to the plate body.
On the basis of the technical scheme, the first transverse rib groove is 1/3 the thickness of the plate body, the second transverse rib groove is 2/3 the thickness of the plate body, and the first transverse rib groove and the second transverse rib groove are uniformly and alternately arranged.
On the basis of the technical scheme, the two side walls of the plate body are provided with side wall grooves.
On the basis of the technical scheme, the side wall groove is parallel to the longitudinal rib and longitudinally extends to the through plate body along the plate body.
On the basis of the technical scheme, at least one through hole is formed in the plate body.
On the basis of the technical scheme, the transverse ribs correspond to the transverse rib grooves one to one, and the transverse ribs do not extend out of the side walls of the plate body.
On the basis of the technical scheme, the longitudinal ribs extend out of two ends of the plate body.
On the basis of the technical scheme, the distance between the longitudinal ribs and the two ends of the plate body is 30-60 mm.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model provides a prestressed concrete hollow floor compares with prior art, and its floor concatenation department is difficult for the fracture, crack resistance is strong, the wholeness is good, the difficult damaged unfilled corner of edge, and actual production is very convenient with hoist and mount, transportation, has solved the technical difficult problem that can not have concurrently simultaneously with the production transportation of being convenient for of fracture in the present precast floor construction.
(2) The utility model provides a hollow core rate of prestressed concrete hollow floor is high, and horizontal muscle groove has improved holistic hollow core rate on guaranteeing structural strength's basis, has reduced the dead weight, has reduced the cost of transportation.
(3) The utility model provides an in the hollow floor slab work progress of prestressed concrete utilized two adjacent boards to pass through reinforcement or welding and cast-in-place processing, both can increase the anti tensile strength that splits between the board, connect into an organic whole through welding or other rigid connection and horizontal muscle again for the construction floor slab has better wholeness.
(4) The utility model provides a hollow floor of prestressed concrete can realize coincide production, is showing reduction production place demand, has saved a large amount of land costs, and production cycle is fast moreover, can continue to use traditional floor production technology, and is ripe, reliable.
Drawings
Fig. 1 is a schematic structural view of a prestressed concrete hollow floor slab in an embodiment of the present invention;
fig. 2 is a schematic view of an end face structure of a prestressed concrete hollow floor slab in an embodiment of the present invention;
fig. 3 is a schematic side structure view of a prestressed concrete hollow floor slab in an embodiment of the present invention;
fig. 4 is a schematic view of a splicing construction structure of a prestressed concrete hollow floor slab in an embodiment of the present invention;
fig. 5 is a schematic view of a splicing end face structure of a prestressed concrete hollow floor slab in an embodiment of the present invention;
fig. 6 is the embodiment of the utility model provides an in the embodiment of a prestressed concrete hollow floor concatenation face overlook the structure sketch map.
In the figure: 1-plate body, 2-transverse rib, 3-longitudinal rib, 4-through hole, 5-side wall groove, 6-transverse rib groove frame, 7-first transverse rib groove and 8-second transverse rib groove.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the present invention provides a structural schematic diagram of a prestressed concrete hollow floor slab, including a slab body 1, a horizontal rib 2, and a vertical rib 3. At least one through hole 4 is arranged in the plate body 1, double-faced cloth ribs are adopted, transverse ribs 2 and longitudinal ribs 3 are embedded in the plate body 1, the top surface of the plate body 1 is provided with the transverse ribs 2 which are arranged in a staggered mode, the longitudinal ribs 3 are arranged, and the longitudinal ribs 3 are evenly arranged on the bottom surface of the plate body 1. Horizontal muscle groove 6 is still equipped with on plate body 1 top surface both sides, and horizontal muscle groove 6 in both sides is laid in pairs, and horizontal muscle 2 both ends all stretch into in a pair of horizontal muscle groove 6 but do not stretch out outside horizontal muscle groove 6.
Fig. 2 is a schematic view of an end face structure of a prestressed concrete hollow floor slab according to an embodiment of the present invention; horizontal muscle 2 sets up in plate body 1 top surface, indulges muscle 3 and sets up in plate body 1 top surface and bottom surface, and plate body 1 lateral wall is equipped with lateral wall groove 5.
Referring to fig. 3, the schematic side structure of the prestressed concrete hollow floor slab in the embodiment of the present invention, the transverse rib groove 6 includes a first transverse rib groove 7 and a second transverse rib groove 8. First horizontal muscle groove 7 and the equal perpendicular to plate body 1 of second horizontal muscle groove 8, first horizontal muscle groove 7 runs through lateral wall groove 5 but does not run through, and second horizontal muscle groove 8 just runs through lateral wall groove 5 for lateral wall groove 5, first horizontal muscle groove 7, the horizontal muscle groove 8 intercommunication of second create convenient condition for cast-in-place construction.
Specifically, in this embodiment, the first transverse rib groove 7 is formed by the thickness 1/6 of the plate body 1, the second transverse rib groove 8 is formed by the thickness 2/3 of the plate body 1, and the first transverse rib groove 7 and the second transverse rib groove 8 are uniformly staggered. Two side walls of the plate body 1 are provided with side wall grooves 5. The side wall grooves 5 are parallel to the longitudinal ribs 3 and extend longitudinally along the plate body 1 to penetrate through the plate body 1.
The longitudinal ribs 3 extend out of two ends of the plate body 1. The distance between the two ends of the longitudinal bar 3 extending out of the plate body 1 is 30-60mm, and the distance can be specifically determined according to the construction requirements of beam-slab combination.
The utility model provides an embodiment of the utility model provides a construction structure sketch map is spliced to hollow floor of prestressed concrete, a hollow floor's of prestressed concrete construction method, include following step:
hoisting a prestressed concrete hollow floor slab, adjusting the prefabricated concrete hollow floor slab to enable the bottom surface of the floor slab to face downwards, and placing the prestressed concrete hollow floor slab at a construction position;
secondly, inspecting the prestressed concrete hollow floor slabs to enable the floor slabs to be arranged orderly, wherein the transverse rib grooves 6 correspond to one another, particularly, the first transverse rib grooves 7 are spliced with the adjacent corresponding first transverse rib grooves 7, the second transverse rib grooves 8 are spliced with the adjacent corresponding second transverse rib grooves 8, the notches of the adjacent side wall grooves 5 are communicated and aligned in a matching mode, and the side wall grooves 5, the first transverse rib grooves 7 and the second transverse rib grooves 8 are ensured to be communicated without sundries blocking;
placing a steel bar in the first transverse bar groove 7;
fourthly, laying pipelines on the side wall grooves 5, and laying the pipelines in advance according to the design requirements of the arranged pipelines;
binding or welding the transverse ribs 2 in the first transverse rib groove 7 and the second transverse rib groove 8 of the adjacent prestressed concrete hollow floor slab in a one-to-one correspondence manner;
step six, pouring concrete in the transverse rib grooves 6 and the side wall grooves 5, adopting spray irrigation to pour, filling the cavity formed by the side wall grooves 5, the first transverse rib grooves 7 and the second transverse rib grooves 8 with the concrete, tamping and leveling the surface;
and sixthly, pouring concrete in the transverse rib grooves 6 and the side wall grooves 5, solidifying and forming to finish the floor slab construction.
Specifically refer to fig. 5 for the embodiment of the utility model provides an in the embodiment of a prestressed concrete hollow floor concatenation end face structure schematic diagram, and fig. 6 is the embodiment of the utility model provides an in a prestressed concrete hollow floor concatenation face overlook the structure schematic diagram, so can accomplish the construction of a pair of this embodiment. The utility model provides a prestressed concrete hollow floor compares with prior art, and its floor concatenation department is difficult for the fracture, crack resistance is strong, the wholeness is good, the difficult damaged unfilled corner of edge, and actual production is very convenient with hoist and mount, transportation, has solved the technical difficult problem that can not have concurrently simultaneously with the production transportation of being convenient for of fracture in the present precast floor construction. The utility model provides a hollow core rate of prestressed concrete hollow floor is high, and horizontal muscle groove has improved holistic hollow core rate on guaranteeing structural strength's basis, has reduced the dead weight, has reduced the cost of transportation.
In the aspect of the construction, the utility model provides an in the hollow floor slab work progress of prestressed concrete utilized two adjacent boards to pass through reinforcement or welding and cast-in-place processing, both can increase the anti tensile strength that splits between the board, connect into an organic whole through welding or other rigid connection and horizontal muscle again for the construction floor slab has better wholeness. The utility model provides a hollow floor of prestressed concrete can realize coincide production, is showing reduction production place demand, has saved a large amount of land costs, and production cycle is fast moreover, can continue to use traditional floor production technology, and is ripe, reliable.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792533.9U CN212506975U (en) | 2020-05-13 | 2020-05-13 | A prestressed concrete hollow floor slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792533.9U CN212506975U (en) | 2020-05-13 | 2020-05-13 | A prestressed concrete hollow floor slab |
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| Publication Number | Publication Date |
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| CN212506975U true CN212506975U (en) | 2021-02-09 |
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| CN202020792533.9U Active CN212506975U (en) | 2020-05-13 | 2020-05-13 | A prestressed concrete hollow floor slab |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576710A (en) * | 2020-05-13 | 2020-08-25 | 湖北大成空间科技股份有限公司 | Prestressed concrete hollow floor slab and construction method thereof |
| CN113250359A (en) * | 2021-07-07 | 2021-08-13 | 中冶建筑研究总院有限公司 | Full precast concrete floor slab connection structure and design calculation method |
-
2020
- 2020-05-13 CN CN202020792533.9U patent/CN212506975U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576710A (en) * | 2020-05-13 | 2020-08-25 | 湖北大成空间科技股份有限公司 | Prestressed concrete hollow floor slab and construction method thereof |
| CN113250359A (en) * | 2021-07-07 | 2021-08-13 | 中冶建筑研究总院有限公司 | Full precast concrete floor slab connection structure and design calculation method |
| CN113250359B (en) * | 2021-07-07 | 2021-10-08 | 中冶建筑研究总院有限公司 | Full precast concrete floor slab connection structure and design calculation method |
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Inventor after: Fu Liming Inventor after: Fu Xianhe Inventor before: Fu Liming Inventor before: Fu Qianhe |