CN114232863A

CN114232863A - Prefabricated superimposed sheet

Info

Publication number: CN114232863A
Application number: CN202111607086.0A
Authority: CN
Inventors: 潘晓晓; 李小明; 王磊; 王子平; 杜汛
Original assignee: Zhejiang Darch Housing Engineering Co ltd
Current assignee: Zhejiang Darch Housing Engineering Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-03-25

Abstract

The invention provides a prefabricated composite slab, which comprises a prefabricated slab body and main reinforcing steel bars embedded in the prefabricated slab body, wherein the main reinforcing steel bars comprise reinforcing steel bar outer sleeves, reinforcing steel bar inner cores arranged in the reinforcing steel bar outer sleeves and connecting frames arranged between the reinforcing steel bar outer sleeves and the reinforcing steel bar inner cores, and a maintenance channel for steam to pass through is formed between the reinforcing steel bar outer sleeves and the reinforcing steel bar inner cores. And after the prefabricated laminated slab is processed, maintaining the outer side of the prefabricated laminated slab by adopting the platform and the cover. At the same time, steam is passed into the curing tunnel. When steam flows in the curing passage, the inner side of the prefabricated composite slab can be cured. So prefabricated superimposed sheet can obtain comparatively abundant maintenance, and the maintenance effect is better.

Description

Prefabricated superimposed sheet

Technical Field

The invention relates to a house prefabricated member, in particular to a prefabricated composite slab.

Background

At present, the existing prefabricated composite slab comprises a prefabricated slab body and a steel bar truss embedded in the prefabricated slab body. The steel bar truss comprises main steel bars and auxiliary steel bars welded and fixed on two sides of the main steel bars. After the production of the prefabricated laminated slab is completed, the prefabricated laminated slab needs to be subjected to steam curing by adopting a platform and a cover. However, in the steam curing process, only the outer side of the prefabricated slab body can be sufficiently cured, and the curing effect is poor.

Disclosure of Invention

In view of the above, the present invention is to provide a prefabricated composite slab, which has the advantages of being capable of achieving sufficient maintenance and good maintenance effect.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a prefabricated composite slab, includes the prefabricated plate body and buries underground the main reinforcing bar in the prefabricated plate body, main reinforcing bar includes the reinforcing bar overcoat, sets up reinforcing bar inner core in the reinforcing bar overcoat, set up the reinforcing bar overcoat with link between the reinforcing bar inner core, the reinforcing bar overcoat with be formed with the maintenance passageway that supplies steam to pass through between the reinforcing bar inner core.

Through above-mentioned technical scheme, after prefabricated superimposed sheet processing is accomplished, adopt the platform to cover the outside of prefabricated superimposed sheet and carry out the maintenance. At the same time, steam is passed into the curing tunnel. When steam flows in the curing passage, the inner side of the prefabricated composite slab can be cured. So prefabricated superimposed sheet can obtain comparatively abundant maintenance, and the maintenance effect is better.

Preferably, the link is including setting up a plurality of locating support of reinforcing bar inner core outer wall department, and a plurality of the locating support is followed the circumference evenly distributed of reinforcing bar inner core, reinforcing bar overcoat inner wall with the relative department of locating support has seted up the location spout, the location spout runs through along the axial reinforcing bar overcoat, the locating support connection of sliding corresponds in the location spout, the outer wall of locating support contradict in the inner wall of location spout.

Through above-mentioned technical scheme, the locating support slides and connects in the spout of fixing a position, can restrict the relative rotation of reinforcing bar inner core and reinforcing bar overcoat on the one hand, and on the other hand can simplify the assembling process of reinforcing bar inner core and reinforcing bar overcoat. The conflict of the outer wall of locating support and the interior cell wall of location spout for the relative movement of restriction reinforcing bar inner core and bar cover, so locating support can effectively support the bar cover, makes bar cover non-deformable damage.

Preferably, the positioning support comprises a plurality of positioning columns arranged on the outer wall of the steel bar inner core, and the plurality of positioning columns are uniformly distributed along the axial direction of the steel bar inner core.

Through above-mentioned technical scheme, the locating support comprises a plurality of reference columns, so can practice thrift the required material of locating support production, play reduction in production cost's purpose.

Preferably, the positioning support further comprises side columns axially arranged along the steel bar inner core, and the side columns are fixedly connected with the plurality of positioning columns.

Through above-mentioned technical scheme, use the side column to connect a plurality of reference columns, can promote the structural strength of locating support for locating support non-deformable damages.

Preferably, the positioning column close to the end part of the steel bar inner core is connected with a pressing nut in a threaded manner, and the pressing nut is pressed against the inner wall of the steel bar outer sleeve.

Through above-mentioned technical scheme, when the inner wall of supporting tight nut and steel bar overcoat supports tightly, can restrict the relative movement of reinforcing bar inner core and steel bar overcoat, so the steel bar overcoat can obtain comparatively effectual support, non-deformable damage.

Preferably, the side wall of the steel bar outer sleeve is provided with a connecting hole in a penetrating mode, and the inner diameter of the connecting hole is gradually reduced towards one side of the steel bar inner core.

Through above-mentioned technical scheme, the connecting hole is seted up in the lateral wall department of reinforcing bar overcoat, so when concreting is used for the shaping precast slab body, can have partial concrete to enter into the connecting hole for the connection between precast slab body and the reinforcing bar overcoat becomes more stable. The internal diameter of connecting hole reduces to reinforcing bar inner core one side gradually, can block the concrete, makes it be difficult for entering into the maintenance passageway to this maintenance process of guaranteeing the later stage can go on smoothly.

Preferably, a filter screen is arranged at the position, far away from the steel bar inner core, of the connecting hole.

Through above-mentioned technical scheme, the filter screen that sets up inside the connecting hole can block the concrete, makes it be difficult for entering into the maintenance passageway to this maintenance process of guaranteeing the later stage can go on smoothly. Moreover, after using the filter screen with the concrete separation, inside steam can entered into the connecting hole, had bigger area of contact between steam and the reinforcing bar overcoat this moment, can further promote the maintenance effect with the faster heating of reinforcing bar overcoat.

Preferably, the inside of connecting hole is provided with the support frame, the support frame is located the filter screen is close to one side of reinforcing bar inner core, the support frame is used for supporting the filter screen.

Through above-mentioned technical scheme, the support frame can be used to support the filter screen for the difficult condition that warp or even damage appears in the filter screen.

Preferably, the support frame is provided with a plurality of heat conduction columns, and the heat conduction columns penetrate through the filter screen.

Through above-mentioned technical scheme, during the heat conduction post ran through the filter screen and stretched into the prefabricated plate body, so at the in-process that carries out steam curing, steam accessible filter screen and heat conduction post carry out more abundant maintenance to the prefabricated plate body.

Preferably, each heat conduction column is sleeved with a support ring, and the support rings are fixedly connected to the filter screen.

Through above-mentioned technical scheme, the support ring of setting on the filter screen can protect the filter screen for the difficult emergence damage of filter screen.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic cross-sectional view of the primary rebar;

fig. 3 is an enlarged view of a portion a of fig. 2.

Reference numerals: 1. a prefabricated plate body; 2. a main reinforcing bar; 21. sheathing the steel bar; 22. a steel bar inner core; 23. a connecting frame; 231. positioning the bracket; 2311. a positioning column; 2312. a side post; 3. maintaining the channel; 4. positioning the chute; 5. tightly abutting the nut; 6. connecting holes; 7. a filter screen; 8. a support frame; 9. a heat-conducting column; 10. and (3) supporting the ring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

A prefabricated composite slab, as shown in figures 1 and 2, comprises a prefabricated slab body 1 and a plurality of main steel bars 2 embedded in the prefabricated slab body 1.

As shown in fig. 2 and 3, the main reinforcement 2 includes a reinforcement sheath 21, a reinforcement core 22 disposed in the reinforcement sheath 21, and a coupling frame 23 disposed between the reinforcement sheath 21 and the reinforcement core 22. The connecting frame 23 is used for connecting the reinforcement bar outer 21 and the reinforcement bar inner 22, so that a stable maintenance channel 3 is formed between the reinforcement bar outer 21 and the reinforcement bar inner 22. When the prefabricated plate body is used, steam is introduced into the curing channel 3, so that the interior of the prefabricated plate body 1 can be cured, and the curing effect is improved.

The connecting frame 23 includes a plurality of positioning brackets 231 disposed on the outer wall of the steel bar core 22, and the plurality of positioning brackets 231 are uniformly distributed along the circumference of the steel bar core 22. The relative department of reinforcing bar overcoat 21 inner wall and locating support 231 has seted up location spout 4, and location spout 4 runs through reinforcing bar overcoat 21 along the axial. The positioning bracket 231 is slidably connected in the corresponding positioning chute 4, and the outer wall of the positioning bracket 231 abuts against the inner chute wall of the positioning chute 4.

The positioning bracket 231 includes a plurality of positioning posts 2311 disposed on the outer wall of the steel bar core 22, and side posts 2312 welded and fixed with the plurality of positioning posts 2311. The positioning columns 2311 are uniformly distributed along the axial direction of the steel bar inner core 22, and each positioning column 2311 is arranged along the radial direction of the inner diameter of the steel bar. The side posts 2312 are disposed axially along the inside diameter of the rebar.

And a abutting nut 5 is in threaded connection with the positioning column 2311 close to the end part of the steel bar inner core 22, and the abutting nut 5 abuts against the inner wall of the steel bar outer sleeve 21.

The side wall of the steel bar outer sleeve 21 is provided with a connecting hole 6 in a penetrating way, and the inner diameter of the connecting hole 6 is gradually reduced towards one side of the steel bar inner core 22. The connecting hole 6 is provided with a filter screen 7 far away from the steel bar inner core 22. The inside of connecting hole 6 is provided with support frame 8, and support frame 8 is located the one side that filter screen 7 is close to reinforcing bar inner core 22, and support frame 8 is located one side that reinforcing bar inner core 22 was kept away from to filter screen 7, and support frame 8 is inconsistent with filter screen 7 for support filter screen 7. The support frame 8 is provided with a plurality of heat conduction columns 9, and the plurality of heat conduction columns 9 all penetrate through the filter screen 7. Each heat-conducting column 9 is sleeved with a support ring 10, and the support ring 10 is fixedly connected to the filter screen 7.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The prefabricated composite slab comprises a prefabricated slab body (1) and main steel bars (2) buried in the prefabricated slab body (1), and is characterized in that: main reinforcing bar (2) are in including reinforcing bar overcoat (21), setting reinforcing bar inner core (22), the setting in reinforcing bar overcoat (21) are in reinforcing bar overcoat (21) with link (23) between reinforcing bar inner core (22), reinforcing bar overcoat (21) with be formed with between reinforcing bar inner core (22) and supply maintenance passageway (3) that steam passed through.

2. A prefabricated laminated panel as claimed in claim 1, wherein: connecting frame (23) are including setting up a plurality of locating support (231) of reinforcing bar inner core (22) outer wall department, and a plurality of locating support (231) are followed the circumference evenly distributed of reinforcing bar inner core (22), reinforcing bar overcoat (21) inner wall with locating support (231) are located relatively and have been seted up location spout (4), location spout (4) are run through along the axial reinforcing bar overcoat (21), locating support (231) slide to be connected and are being corresponded in location spout (4), the outer wall of locating support (231) contradict in the inner groove wall of location spout (4).

3. A prefabricated laminated panel as claimed in claim 2, wherein: the positioning support (231) comprises a plurality of positioning columns (2311) arranged on the outer wall of the steel bar inner core (22), and the positioning columns (2311) are uniformly distributed along the axial direction of the steel bar inner core (22).

4. A prefabricated laminated panel as claimed in claim 3, wherein: the positioning support (231) further comprises side columns (2312) which are axially arranged along the steel bar inner core (22), and the side columns (2312) are fixedly connected with the positioning columns (2311).

5. A prefabricated laminated panel as claimed in claim 3, wherein: and a tightening nut (5) is in threaded connection with the positioning column (2311) close to the end part of the steel bar inner core (22), and the tightening nut (5) is tightly pressed against the inner wall of the steel bar outer sleeve (21).

6. A prefabricated laminated panel as claimed in claim 1, wherein: the lateral wall department of reinforcing bar overcoat (21) runs through and is provided with connecting hole (6), the internal diameter of connecting hole (6) reduces gradually reinforcing bar inner core (22) one side.

7. A prefabricated laminated panel as claimed in claim 6, wherein: and a filter screen (7) is arranged at the position of the connecting hole (6) far away from the steel bar inner core (22).

8. A prefabricated laminated panel as claimed in claim 7, wherein: the inside of connecting hole (6) is provided with support frame (8), support frame (8) are located filter screen (7) are close to one side of reinforcing bar inner core (22), support frame (8) are used for supporting filter screen (7).

9. A prefabricated laminated panel as claimed in claim 8, wherein: the support frame (8) is provided with a plurality of heat conduction columns (9), and the heat conduction columns (9) penetrate through the filter screen (7).

10. A prefabricated laminated panel as claimed in claim 9, wherein: each heat conduction post (9) is sleeved with a support ring (10), and the support rings (10) are fixedly connected to the filter screen (7).