CN210597797U

CN210597797U - Prefabricated roof layer unit

Info

Publication number: CN210597797U
Application number: CN201921199903.1U
Authority: CN
Inventors: 郑建良; 宁建成
Original assignee: Zhejiang Jiuyang Concrete Building Components Co Ltd
Current assignee: Zhejiang Jiuyang Concrete Building Components Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-22
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a prefabricated roof layer unit, which comprises a concrete poured roof layer (1), wherein a plurality of groups of transversely distributed longitudinal plate ribs (2), a plurality of groups of longitudinally distributed transverse plate ribs (3) and a plurality of groups of longitudinally distributed bearing plate ribs (4) are arranged in the roof layer (1); the bearing plate reinforcing bars (4) comprise 1 upper plate truss reinforcing bar (41) located on the outer side of the roof layer (1), the upper plate truss reinforcing bar (41) is connected with two lower plate truss reinforcing bars (42) located on the inner side of the roof layer (1) and distributed at intervals, and the upper plate truss reinforcing bar (41) and the lower plate truss reinforcing bars (42) are connected through truss web ribs (43). The utility model has the advantages of simple construction process, strong hoisting bearing capacity of the hoisting part of the prefabricated roof layer and low construction cost.

Description

Prefabricated roof layer unit

Technical Field

The utility model relates to a roof boarding technical field, especially a prefabricated roof boarding unit.

Background

Roofing layers in buildings must have sufficient strength and rigidity to carry loads such as furniture, equipment and people thereon and to transfer the loads to load bearing members to maintain horizontal support of the building. The existing roof layer construction generally adopts two modes of cast-in-place and prefabricated roof layer hoisting and assembling. The roof layer is cast in situ, a formwork is firstly built, pouring construction is carried out, and a template is finally removed, so that the whole construction requirement is high, the construction process is complex, and the construction progress is slow; the hoisting of the prefabricated roof layer is adopted, the existing common prefabricated roof layer adopts bent plate bars as hoisting parts, the hoisting bearing capacity of the bent plate bars is limited, and the bent plate bars cannot bear the weight of a larger prefabricated roof layer; the area of the roof layer of a common room is dozens of square meters, a large number of common prefabricated roof layers are required to be fully paved, the whole construction process needs to be hoisted and poured for many times, the construction process is troublesome, and the construction cost is high. Therefore, the problems of complex cast-in-place construction process, limited hoisting bearing capacity of the hoisting part of the prefabricated roof layer and higher construction cost exist in the technical field of the common roof layer at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated roof layer unit. The utility model has the advantages of simple construction process, strong hoisting bearing capacity of the hoisting part of the prefabricated roof layer and low construction cost.

The technical scheme of the utility model: the prefabricated roof layer comprises a concrete poured roof layer, wherein a plurality of groups of transversely distributed plate longitudinal ribs, a plurality of groups of longitudinally distributed plate transverse ribs and a plurality of groups of longitudinally distributed plate bearing ribs are arranged in the roof layer; the bearing plate steel bars comprise 1 upper plate truss steel bar positioned on the outer side of the roof layer, the upper plate truss steel bar is connected with two lower plate truss steel bars positioned on the inner side of the roof layer and distributed at intervals, and the upper plate truss steel bars and the lower plate truss steel bars are connected through truss web ribs.

In the prefabricated roof layer, the longitudinal ribs of the plate and the transverse ribs of the plate are exposed at two ends.

In the prefabricated roof layer, the upper plate truss steel bars are positioned on the perpendicular bisectors of the two lower plate truss steel bars connected with the upper plate truss steel bars; the truss web ribs are in the shape of a plurality of V-shaped structures connected end to end, and are connected to the outer side of the upper plate truss steel bars and the inner side of the lower plate truss steel bars respectively.

In the prefabricated roof layer, the lower plate truss steel bars and the plate transverse bars are positioned above the plate longitudinal bars.

In the prefabricated roof layer, the roof layer is provided with pre-buried electric installation holes;

compared with the prior art, the utility model has the advantages that the prefabricated roof layer is used for construction, only hoisting and installing are needed for reinforcement and pouring, the die carrier does not need to be built on site, and then integral pouring is carried out, so that the construction process is simple; the slab bearing ribs are used for replacing bent slab ribs of a common prefabricated roof layer to serve as hoisting parts, the hoisting bearing capacity of the slab bearing ribs is stronger, and the scale of the prefabricated roof layer can be correspondingly enlarged; aiming at the laying of large-area room roof layers, a large number of small prefabricated roof layer units can be replaced by a few large prefabricated roof layer units, and the hoisting and construction obviously reduce a lot of workload, thereby reducing the construction cost of the roof layer; the plate bearing rib has simple process and low implementation cost, and can effectively improve the hoisting bearing capacity of the hoisting part of the prefabricated roof layer so as to reduce the construction cost of the roof layer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a partial schematic view of the reinforcing bar structure of the present invention;

FIG. 3 is a schematic front view of the plate load-bearing rib structure of the present invention;

FIG. 4 is a schematic side view of a portion of the plate load-bearing rib structure of the present invention;

the labels in the figures are: 1-roof layer, 2-longitudinal plate ribs, 3-transverse plate ribs, 4-bearing plate ribs, 5-embedded electrical installation holes, 41-upper plate truss steel bars, 42-lower plate truss steel bars and 43-truss web ribs.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A prefabricated roof layer unit is shown in figures 1 to 4 and comprises a concrete poured roof layer 1, wherein a plurality of groups of transversely distributed plate longitudinal ribs 2, a plurality of groups of longitudinally distributed plate transverse ribs 3 and a plurality of groups of longitudinally distributed plate bearing ribs 4 are arranged in the roof layer 1; the plate bearing ribs 4 comprise 1 upper plate truss reinforcing steel bar 41 positioned on the outer side of the roof layer 1, the upper plate truss reinforcing steel bar 41 is connected with two lower plate truss reinforcing steel bars 42 which are positioned on the inner side of the roof layer 1 and distributed at intervals, and the upper plate truss reinforcing steel bar 41 and the lower plate truss reinforcing steel bars 42 are connected through truss web ribs 43.

The two ends of the longitudinal plate ribs 2 and the transverse plate ribs 3 are exposed out of the roof layer 1; the roof layer 1 has the specifications: length 2780mm, width 1580mm, and height 60 mm; the specifications of the longitudinal plate ribs 2 are as follows: the mark HRB400(C), the length is 1800mm, and the diameter is 8 mm; the specifications of the transverse plate rib 3 are as follows: the mark HRB400(C), the length is 3000mm, and the diameter is 8 mm.

The upper plate truss steel bars 41 are positioned on the perpendicular bisectors of the two lower plate truss steel bars 42 connected with the upper plate truss steel bars; the specifications of the upper plate truss steel bars 41 and the lower plate truss steel bars 42 are as follows: the mark HRB400(C), the length 2680mm, phi 8 mm; the truss web ribs 43 have the following specifications: the trade mark HPB300(A), phi 6 mm; the distance between the two lower plate truss steel bars 41 is 64mm, and the distance between the axis of the upper plate truss steel bar 42 and the horizontal plane of the axis of the lower plate truss steel bar 42 is 82 mm; truss web members 43 are the shape of a plurality of V type structure end to end connections, and truss web members 43 connect respectively in the upper plate truss reinforcing bar 41 outside and the inboard triangular prism that constitutes firmly of hypoplastron truss reinforcing bar 42.

The distance between the axle center of the plate longitudinal rib 2 and the bottom of the roof layer 1 is 19mm, and the distance between the axle center of the lower plate truss steel bar 42 and the axle center of the plate transverse rib 3 and the bottom of the roof layer 1 is 27 mm; the plate bearing ribs 4 and the plate transverse ribs 3 are respectively welded on the plate longitudinal ribs 2.

A reinforcing frame formed by welding 17 longitudinal ribs 2 of the strip plate, 10 transverse ribs 3 of the strip plate and 3 groups of plate bearing ribs 4 is embedded in the roof layer 1, and upper plate truss reinforcing steel bars 41 of the plate bearing ribs 4 are exposed.

The roof layer 1 can be adjusted in shape according to actual construction conditions, and parts such as a pre-installed water pipe and the like are reserved.

The working principle is as follows: the utility model discloses the reinforcing bar frame that interior pre-buried 17 vertical muscle of slat 2 and 10 horizontal muscle 3 welds become, thereby the reinforcing bar frame improves prefabricated roof layer's overall structure intensity as prefabricated roof layer inner frame. 3 groups of plate bearing ribs 4 formed by welding 2 lower plate truss reinforcing steel bars 42, 1 upper plate truss reinforcing steel bar 41 and 2M-shaped truss web reinforcing steel bars 43 are used as hoisting stress parts of the prefabricated plate, and the plate bearing ribs 4 are also welded on the longitudinal plate reinforcing steel bars 2. The lower plate truss reinforcing steel bars 41 and part of truss web reinforcing steel bars 43 are also embedded in the roof layer 1. When hoisting operation is carried out, hoisting reinforcing steel bars penetrate through the plate bearing reinforcing steel bars 4 to hoist the prefabricated roof layer units to preset positions, multiple groups of prefabricated roof layer units are hoisted and installed for multiple times to form a roof layer whole body, and the roof layer whole body is subjected to secondary pouring reinforcement to construct a roof layer blank.

Claims

1. A prefabricated roof layer element characterized in that: the concrete-poured roof slab comprises a concrete-poured roof slab (1), wherein a plurality of groups of transversely-distributed slab longitudinal ribs (2), a plurality of groups of longitudinally-distributed slab transverse ribs (3) and a plurality of groups of longitudinally-distributed slab bearing ribs (4) are arranged in the roof slab (1); the bearing plate reinforcing bars (4) comprise 1 upper plate truss reinforcing bar (41) located on the outer side of the roof layer (1), the upper plate truss reinforcing bar (41) is connected with two lower plate truss reinforcing bars (42) located on the inner side of the roof layer (1) and distributed at intervals, and the upper plate truss reinforcing bar (41) and the lower plate truss reinforcing bars (42) are connected through truss web ribs (43).

2. A pre-fabricated roof layer element according to claim 1, characterised in that: the two ends of the longitudinal plate rib (2) and the transverse plate rib (3) are exposed.

3. A pre-fabricated roof layer element according to claim 1, characterised in that: the upper plate truss steel bars (41) are positioned on the perpendicular bisector of the two lower plate truss steel bars (42) connected with the upper plate truss steel bars; truss web reinforcement (43) are the shape of a plurality of V type structure end to end connections, and truss web reinforcement (43) are connected respectively in last board truss reinforcing bar (41) outside and hypoplastron truss reinforcing bar (42) inboard.

4. A pre-fabricated roofing element according to claim 1, 2 or 3, wherein: the lower plate truss steel bars (42) and the plate transverse ribs (3) are located above the plate longitudinal ribs (2).

5. A pre-fabricated roofing element according to claim 1, 2 or 3, wherein: the roof layer (1) is provided with pre-buried electric installation holes (5).