CN218466865U - Multi-rib type steel concrete combined hollow prefabricated bottom plate - Google Patents

Abstract

The utility model discloses a hollow prefabricated bottom plate of multi-ribbed formula steel concrete combination relates to building prefab technical field, and the main objective improves the convenience that the hollow prefabricated bottom plate's of steel concrete combination upper strata board antitorque performance and lower floor's board concreting. The utility model discloses a main technical scheme does: hollow prefabricated bottom plate of multi-ribbed steel concrete combination, it includes: a plurality of holes are axially arranged on the upper plate; the connecting part comprises a plurality of connecting parts, the connecting parts are arranged between the upper plate and the lower plate in a matrix manner, each connecting part comprises a web plate, a first anchor plate, a second anchor plate, a third anchor plate and a fourth anchor plate, the first anchor plate, the second anchor plate, the third anchor plate and the fourth anchor plate are sequentially and fixedly connected to the web plate, the first anchor plate is anchored on the upper surface of the upper plate, the second anchor plate is anchored on the lower surface of the upper plate, the third anchor plate is anchored on the upper surface of the lower plate, and the fourth anchor plate is anchored on the lower surface of the lower plate.

Description

Multi-ribbed steel-concrete composite hollow prefabricated floor

technical field

The utility model relates to the technical field of building prefabricated parts, in particular to a multi-ribbed steel-concrete composite hollow prefabricated bottom plate.

Background technique

Prefabricated is the future development direction of my country's construction industry, and prefabricated concrete structure is one of the main structural forms. As a new type of prefabricated floor slab in the floor system, steel-concrete composite laminated slab has the advantages of high degree of industrialization and less on-site modulus compared with ordinary cast-in-place slabs.

The steel-concrete composite prefabricated floor is an important part of the steel-concrete composite laminated slab. In the prior art, the steel-concrete composite prefabricated floor can be composed of an upper slab, a lower slab, and steel connectors. The steel connectors are generally arranged in a single row along the length of the slab, referred to as single ribs, and the upper slab is a solid reinforced concrete slab. Since only one steel connector is provided along the width direction of the single-rib steel-concrete composite precast floor, if the upper slab is subjected to eccentric pressure during the construction stage, the torsional performance of the upper slab of the precast floor is not good, and the precast floor is prone to quality problems.

Utility model content

In view of this, the utility model provides a multi-ribbed steel-concrete composite hollow prefabricated floor, the main purpose of which is to improve the torsional performance of the upper slab of the steel-concrete composite hollow prefabricated floor and the convenience of concrete pouring for the lower slab.

In order to achieve the above object, the utility model mainly provides the following technical solutions:

The utility model provides a multi-ribbed steel-concrete combined hollow prefabricated bottom plate, which comprises: an upper layer plate, a lower layer plate and a connecting part;

The upper plate has a plurality of holes arranged axially;

The connecting part includes a plurality of connecting parts, and a plurality of connecting parts are arranged in a matrix between the upper layer and the lower layer, and each connecting part includes a web, a first anchor plate, and a second anchor plate , a third anchor plate and a fourth anchor plate, the first anchor plate, the second anchor plate, the third anchor plate and the fourth anchor plate are sequentially fixedly connected to the web, the first anchor plate An anchor plate is anchored to the upper surface of the upper plate, the second anchor plate is anchored to the lower surface of the upper plate, the third anchor plate is anchored to the upper surface of the lower plate, and the fourth anchor plate is anchored to the upper surface of the lower plate. A plate is anchored to the lower surface of the lower plate.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Optionally, a plurality of the holes are arranged in a matrix on the upper layer, and each row of the holes is located between two adjacent rows of the connecting components.

Optionally, the first anchor plates, the second anchor plates, the third anchor plates and the fourth anchor plates are alternately arranged on opposite sides of the web in sequence.

Optionally, the web includes a first web and a second web, and the first anchor plate and the third anchor plate are respectively fixedly connected to both ends of the first web to form a first C The second anchor plate and the fourth anchor plate are respectively fixedly connected to the two ends of the second web to form a second C-shaped plate, the first C-shaped plate and the second C-shaped plate The panels are detachably connected back to back.

Optionally, the web includes a third web and a fourth web, the first anchor plate is fixedly connected to the upper end of the third web, and the second anchor plate is fixedly connected to the third web. The middle part of the web, the third anchor plate is fixedly connected to the middle part of the fourth web, the fourth anchor plate is fixedly connected to the lower end of the fourth web, all the anchor plates above the third anchor plate The fourth web is detachably connected to the third web below the second anchor plate.

Optionally, a plurality of first longitudinal reinforcements are also included, and the plurality of first longitudinal reinforcements are pre-embedded in the upper layer board in sequence.

Optionally, a plurality of second longitudinal reinforcements are also included, and the plurality of second longitudinal reinforcements are pre-embedded in the lower plate in sequence.

By virtue of the above technical solutions, the utility model has at least the following advantages:

First of all, in the construction stage, even if the upper slab of the prefabricated floor is subjected to eccentric pressure, since multiple connecting parts are arranged in a matrix between the upper and lower slabs, there is more than one connecting part in the width direction of the prefabricated floor, and the upper slab is not easy to A certain row of connecting parts is deflected, so that the upper plate remains horizontal, thereby ensuring the torsional performance of the upper plate.

Secondly, when manufacturing in the factory, the upper slab is poured first, and the connecting parts are placed in multiple rows along the longitudinal direction at intervals, and then the longitudinal ribs of the upper slab are arranged according to the design requirements, and then the multiple holes of the upper slab are formed and poured. Upper deck concrete, forming the upper deck. After the concrete of the upper slab has hardened to a certain strength, it is turned over, placed on the ground or on the work table, the formwork is placed under it and the longitudinal reinforcement of the lower slab is arranged, and then the concrete is poured downward from the holes of the upper slab to form the lower slab. After the concrete of the lower slab hardens, the prefabricated bottom slab is completed. In the above process, because the upper slab is provided with holes, it is not necessary to pour concrete into the mold of the lower slab from the edge of the upper slab, which improves the convenience of pouring concrete for the lower slab.

The first anchor plate, the second anchor plate, the third anchor plate and the fourth anchor plate are fixedly connected to the web in sequence. After the concrete pouring is completed, multiple connecting parts form a supporting structure for the upper and lower plates, and for the prefabricated bottom plate. The structure forms multiple points of support.

Description of drawings

Fig. 1 is the three-dimensional view of a kind of multi-rib steel-concrete combined hollow prefabricated floor provided by the embodiment of the present invention;

Fig. 2 is a perspective view of the first connection part;

Fig. 3 is the three-dimensional assembly diagram of the second connection part;

Fig. 4 is a three-dimensional disassembled view of the second connecting part;

Fig. 5 is the three-dimensional assembly diagram of the third connecting part;

Fig. 6 is a three-dimensional disassembled view of the third connection component.

The reference signs in the drawings of the description include: upper plate 1, lower plate 2, hole 3, web 4, first web 401, second web 402, third web 403, fourth web 404, second web One anchor plate 105, the second anchor plate 106, the third anchor plate 107, the fourth anchor plate 108, the first anchor plate 205, the second anchor plate 206, the third anchor plate 207, the fourth anchor plate 208, the first anchor plate plate 305 , second anchor plate 306 , third anchor plate 307 , fourth anchor plate 308 , first longitudinal rib 9 , and second longitudinal rib 10 .

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the specific implementation, structure, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figures 1 and 2, an embodiment of the present utility model provides a multi-ribbed steel-concrete composite hollow prefabricated floor, which includes: an upper plate 1, a lower plate 2 and a connecting part;

The upper plate 1 is axially arranged with a plurality of holes 3;

The connecting part includes a plurality of connecting parts, and the connecting parts are arranged in a matrix between the upper plate 1 and the lower plate 2, and each connecting part includes a web 4, a first anchor plate 105, a second anchor plate 106, and a third anchor plate 107 and the fourth anchor plate 108, the first anchor plate 105, the second anchor plate 106, the third anchor plate 107 and the fourth anchor plate 108 are fixedly connected to the web in turn, and the first anchor plate 105 is anchored on the upper plate 1 On the surface, the second anchor plate 106 is anchored to the lower surface of the upper plate 1 , the third anchor plate 107 is anchored to the upper surface of the lower plate 2 , and the fourth anchor plate 108 is anchored to the lower surface of the lower plate 2 .

The working process of the multi-rib steel-concrete composite hollow prefabricated floor is as follows:

First of all, in the construction stage, even if the upper slab 1 of the prefabricated floor is subjected to eccentric pressure, since multiple connecting parts are arranged in matrix between the upper slab 1 and the lower slab 2, there is more than one connecting member in the width direction of the prefabricated floor, and the upper slab 1 is not easy to deflect relative to a certain row of connecting parts, so that the upper layer plate 1 is kept in a horizontal state, thereby ensuring the torsional performance of the upper layer plate 1 .

Secondly, when manufacturing in the factory, the upper layer 1 is poured first, the connecting parts are placed in multiple rows and at intervals along the longitudinal direction, and then the longitudinal ribs of the upper layer 1 are arranged according to the design requirements, and then the multiple holes 3 of the upper layer 1 are carried out. The formwork is set up, and the upper deck 1 is poured with concrete to form the upper deck 1 . After the concrete of the upper deck 1 has hardened to a certain strength, it is turned over, placed on the ground or on the work table, the formwork is set up under it and the longitudinal reinforcement of the lower deck 2 is arranged, and then the concrete is poured downward from the hole 3 of the upper deck 1, The lower plate 2 is formed. After the concrete of the lower slab 2 is hardened, the prefabricated bottom slab is finished. In the above process, because the upper plate 1 is provided with holes 3, it is not necessary to pour concrete into the mold of the lower plate 2 from the edge of the upper plate 1, and the concrete does not need to be spread from the edge of the mold to the center, which improves the convenience of concrete pouring of the lower plate 2 sex.

The first anchor plate 105, the second anchor plate 106, the third anchor plate 107 and the fourth anchor plate 108 are fixedly connected to the web 4 in turn, and after the concrete pouring is completed, each anchor plate is anchored to the upper plate 1 and the lower plate 2 On the upper and lower surfaces of the upper and lower surfaces, multiple connecting parts form a support structure for the upper layer 1 and the lower layer 2, and form multi-point supports for the structure of the prefabricated floor.

In the technical solution of the utility model, the prefabricated base plate improves the convenience of concrete pouring of the lower plate 2 under the premise of ensuring the torsional performance of the upper plate 1 .

Specifically, the size of the upper slab 1 is smaller than the size of the lower slab 2. When pouring the lower slab 2, part of the concrete can be poured directly to the inner edge of the lower slab 2 mold, and part of the concrete is poured from the hole 3 of the upper slab 1 to the mold of the lower slab 2. Center pouring, so the concrete can be laid more easily.

As shown in FIG. 1 , in a specific embodiment, a plurality of holes 3 are arranged in a matrix on the upper plate 1 , and each row of holes 3 is located between two adjacent rows of connecting components.

In this embodiment, specifically, the anchor plates of the connecting parts can be anchored on the surface of the upper deck 1 or the lower deck 2, and when concrete is poured into the mold of the lower deck 2 from each row of holes 3, the concrete can also be more uniformly self-contained. The third anchor plate 107 and the fourth anchor plate 108 of each connecting part are buried around, so that the thickness of concrete around the web is consistent.

As shown in Fig. 1, Fig. 3 and Fig. 4, in a specific embodiment, the first anchor plate 205, the second anchor plate 206, the third anchor plate 207 and the fourth anchor plate 208 are arranged alternately on opposite sides of the web in sequence .

In this embodiment, specifically, the first anchor plate 205 and the third anchor plate 207 are respectively fixedly connected to one side of the web, and the second anchor plate 206 and the fourth anchor plate 208 are respectively fixedly connected to the other side of the web. On the side, such a connecting part can be welded back to back by two C-shaped steel plates, which is easy to manufacture.

As shown in Fig. 1, Fig. 3 and Fig. 4, in a specific embodiment, the web 4 includes a first web 401 and a second web 402, and the first anchor plate 205 and the third anchor plate 207 are respectively fixedly connected to the first web 401 and the second web 402. The two ends of a web 401 form a first C-shaped plate, the second anchor plate 206 and the fourth anchor plate 208 are respectively fixedly connected to the two ends of the second web 402 to form a second C-shaped plate, and the first C-shaped plate The plate and the second C-plate are detachably connected back-to-back.

In this embodiment, specifically, the upper slab 1 and the lower slab 2 can be poured synchronously, the upper half of the first web 401 is pre-embedded in the concrete of the upper slab 1, and the lower half of the second web 402 is pre-embedded In the concrete of the lower slab 2, after the concrete of the upper slab 1 and the lower slab 2 has hardened to a certain strength, the first C-shaped plate and the second C-shaped plate are attached back to back, and the third anchor plate 207 is attached to the lower slab 2, the second anchor plate 206 is attached to the lower surface of the upper plate 1, and then the back-to-back first C-shaped plate and the second C-shaped plate are fastened by rivets or bolts, so that the upper plate 1 and the lower plate 2 are fixed. connected together.

Specifically, the upper slab 1 and the lower slab 2 are poured synchronously, and the production progress of the prefabricated floor is faster and the efficiency is higher.

As shown in Figures 1, 5 and 6, in a specific embodiment, the web 4 includes a third web 403 and a fourth web 404, the first anchor plate 305 is fixedly connected to the upper end of the third web 403, The second anchor plate 306 is fixedly connected to the middle part of the third web 403, the third anchor plate 307 is fixedly connected to the middle part of the fourth web 404, the fourth anchor plate 308 is fixedly connected to the lower end of the fourth web 404, and the third anchor plate 307 is fixedly connected to the middle part of the fourth web 404. The fourth web 404 above the anchor plate 307 is detachably connected to the third web 403 below the second anchor plate 306 .

In this embodiment, specifically, the middle part of the first anchor plate 305 is fixedly welded to the upper end of the third web 403, the middle part of the second anchor plate 306 is fixedly welded to the middle part of the third web 403, and the third anchor plate 307 The middle part of the anchor plate 308 is fixedly welded to the middle part of the fourth web 404 , and the middle part of the fourth anchor plate 308 is fixedly welded to the lower end of the fourth web 404 . The third web 403 between the first anchor plate 305 and the second anchor plate 306 is pre-embedded in the concrete of the upper floor 1, so that the opposite sides of the third web 403 have two anchor plates anchored to the upper floor 1. In the concrete; at the same time, the fourth web 404 between the third anchor plate 307 and the fourth anchor plate 308 is pre-embedded in the concrete of the lower floor 2, so that the opposite sides of the fourth web 404 have two anchor plates anchored to Inside the concrete of the lower deck 2. On the above basis, the fourth web 404 and the third web 403 are fastened by rivets or bolts, and the upper plate 1 and the lower plate 2 are fixedly connected together. At the same time, the number of anchor plates to which the connecting component is anchored in this embodiment is more, and the anchoring between the upper layer plate 1 or the lower layer plate 2 and the connecting component is more firm.

Specifically, because the fourth web 404 is detachably connected to the third web 403, the upper slab 1 and the lower slab 2 can be poured synchronously, making the prefabricated bottom slab faster and more efficient.

As shown in FIG. 1 , in a specific embodiment, a plurality of first longitudinal ribs 9 are further included, and the plurality of first longitudinal ribs 9 are pre-embedded in the upper layer plate 1 in sequence.

In this embodiment, when the upper slab 1 is molded, a plurality of first longitudinal ribs 9 are sequentially arranged in the mold of the upper slab 1 , and after the concrete pouring and curing is completed, the upper slab 1 has the toughness of the first longitudinal ribs 9 and the hardness of the concrete.

As shown in FIG. 1 , in a specific embodiment, a plurality of second longitudinal ribs 10 are further included, and the plurality of second longitudinal ribs 10 are pre-embedded in the lower plate 2 in sequence.

In this embodiment, when the lower slab 2 is molded, a plurality of second longitudinal ribs 10 are sequentially arranged in the mold of the lower slab 2, and after the concrete pouring and curing is completed, the upper slab 1 has the toughness of the second longitudinal ribs 10 and the hardness of the concrete.

Specifically, the prefabricated floor also includes the following advantages:

1. The upper slab 1 is opened to make the self-weight of the prefabricated bottom slab lighter, reducing the dead load in the construction stage of the prefabricated bottom slab.

2. The upper deck 1 is opened to facilitate the pouring of concrete from the hole 3 to form the lower deck 2. At the same time, it is more convenient to pour the cast-in-place concrete from the hole 3, which can avoid the gap between the upper and lower decks 2. The concrete is not dense Condition. More preferably, the hole 3 of the upper plate 1 can increase the bite between the old and new concrete, and improve the integrity of the laminated plate.

3. Multiple connecting parts are arranged in a matrix, which can effectively increase the torsion resistance of the prefabricated base plate upper plate 1. At the same time, the plate width can be increased by flexibly setting multiple rows of steel connectors to meet the needs of large plate width prefabricated base plates. Improve on-site construction efficiency.

4. Through the detachable connection structure of the connecting parts, it is convenient to manufacture the upper and lower plates 2 at the same time, and then the connecting parts are fastened by welding or bolts to form a prefabricated bottom plate, which is conducive to improving the production efficiency of the prefabricated bottom plate and shortening the production cycle.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (7)

1. The utility model provides a hollow prefabricated bottom plate of multi-ribbed formula steel concrete combination which characterized in that includes:

the upper plate is axially provided with a plurality of holes;

a lower layer plate;

the connecting part comprises a plurality of connecting parts, the connecting parts are arranged between the upper plate and the lower plate in a matrix manner, each connecting part comprises a web plate, a first anchor plate, a second anchor plate, a third anchor plate and a fourth anchor plate, the first anchor plate, the second anchor plate, the third anchor plate and the fourth anchor plate are sequentially and fixedly connected to the web plate, the first anchor plate is anchored on the upper surface of the upper plate, the second anchor plate is anchored on the lower surface of the upper plate, the third anchor plate is anchored on the upper surface of the lower plate, and the fourth anchor plate is anchored on the lower surface of the lower plate.

2. The multi-rib steel reinforced concrete composite hollow prefabricated bottom plate according to claim 1,

the holes are arranged on the upper plate in a matrix mode, and each row of holes is located between two adjacent rows of connecting parts.

3. The multi-rib steel reinforced concrete combined hollow prefabricated bottom plate according to claim 1 or 2,

the first anchor plate, the second anchor plate, the third anchor plate and the fourth anchor plate are sequentially arranged on opposite sides of the web plate in a staggered manner.

4. The multi-rib type steel reinforced concrete combined hollow prefabricated bottom plate according to claim 3,

the web comprises a first web and a second web, the first anchor plate and the third anchor plate are respectively and fixedly connected to the two ends of the first web to form a first C-shaped plate, the second anchor plate and the fourth anchor plate are respectively and fixedly connected to the two ends of the second web to form a second C-shaped plate, and the first C-shaped plate and the second C-shaped plate are detachably connected back to back.

5. The multi-rib steel reinforced concrete combined hollow prefabricated bottom plate according to claim 1 or 2,

the web includes third web and fourth web, first anchor plate fixed connection in the upper end of third web, second anchor plate fixed connection in the middle part of third web, third anchor plate fixed connection in the middle part of fourth web, fourth anchor plate fixed connection in the lower extreme of fourth web, third anchor plate top the fourth web can dismantle connect in the second anchor plate below the third web.

6. The multi-rib steel reinforced concrete combined hollow prefabricated bottom plate according to claim 1 or 2,

still include a plurality of first muscle of indulging, it is a plurality of first muscle of indulging is in proper order pre-buried in the upper plate.

7. The multi-rib steel reinforced concrete combined hollow prefabricated bottom plate according to claim 1 or 2,

the laminated board is characterized by further comprising a plurality of second longitudinal ribs, and the second longitudinal ribs are sequentially embedded in the lower layer board.

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