CN204001409U - Precast composite slab - Google Patents

Abstract

The utility model discloses a prefabricated composite panel, which comprises a prefabricated concrete trough-shaped slab, the upper end surface of the prefabricated concrete trough-shaped slab is provided with a filling groove, and one or at least two aerated concrete slabs are arranged in the filling groove; when filling the concave When there is only one aerated concrete slab in the groove, the periphery of the aerated concrete slab is provided with protrusions or \ and grooves. Correspondingly, the inner surface of the filling groove facing the protrusion is provided with an inner groove, and the protrusion is embedded Into the inner groove, correspondingly, the inner surface of the filling groove facing the groove is provided with an inner protrusion, and the inner protrusion is embedded in the groove; it solves the shortcomings of large shrinkage of the aerated concrete plate and easy cracking during use, At the same time, the weight and steel consumption of concrete components are reduced.

Description

precast composite panel

technical field

The utility model relates to a composite panel, in particular to a composite structural panel used for buildings or other structures, that is, a composite structure of a concrete panel and an aerated concrete panel.

Background technique

Domestic status:

There are two types of walls, masonry and plank. This technology belongs to the board category.

Domestic panels are divided into lightweight panels and precast concrete panels. Lightweight panels cannot be used as structures, but only as insulation materials for internal partition walls or masonry (plate) external walls. Prefabricated concrete panels are mainly sandwich panels, that is, both the outer surface and the inner surface are made of concrete prefabricated components, and lightweight insulation materials are sandwiched between the two-layer components. Although this type of panel has good thermal insulation performance and durability, the gap between the two-layer components There is a big safety hazard in the connection, the weight of the components is heavy, and the amount of steel used is large, and there are big problems in terms of safety and economy.

Utility model content

The purpose of this utility model is to provide prefabricated building panels. This utility model utilizes the advantages of lighter weight and better thermal insulation performance of aerated concrete panels, and uses prefabricated concrete slabs as stress components and maintenance components to solve the problem of shrinkage of aerated concrete panels. Larger and easy to crack during use, while reducing the weight of concrete members and the amount of steel used.

The purpose of this utility model is mainly achieved through the following technical solutions: prefabricated composite panels, including prefabricated concrete channel panels, the upper end surface of the precast concrete channel panels is provided with filling grooves, and one or at least two filling grooves are arranged in the filling grooves. Air concrete slab;

When only one aerated concrete slab is set in the filling groove, the periphery of the aerated concrete slab is provided with protrusions or \and grooves, and correspondingly, the inner surface of the filling groove facing the protrusion is provided with an inner groove, The protrusion is embedded in the inner groove, and correspondingly, the inner surface of the filling groove facing the groove is provided with an inner protrusion, and the inner protrusion is embedded in the groove;

When at least 2 aerated concrete slabs are installed in the filling groove, among the 2 adjacent aerated concrete slabs, one side of one aerated concrete slab is provided with a protrusion A, and the other aerated concrete slab is opposite to it There is a groove A on one side of the side, and the protrusion A is embedded in the groove A. Two adjacent aerated concrete slabs form concave-convex groove splicing. The inner surface is provided with inner grooves or \and inner protrusions, and the periphery of the spliced aerated concrete slab is provided with corresponding protrusions or \and grooves, and the periphery of the spliced aerated concrete slab and the inner surface of the filled groove form a concave-convex splicing .

The left side of the precast concrete channel slab is provided with an outer protrusion, and the right side of the precast concrete channel slab is provided with an outer groove. Among the two adjacent precast concrete channel slabs, the outer side of one of the precast concrete channel slabs The protrusion is embedded in the outer groove of another precast concrete channel plate, and two adjacent precast concrete channel plates form concave-convex groove splicing.

The prefabricated concrete channel slab is also provided with connection holes.

The connection holes include bolt connection holes A, bolt connection holes B and reinforcement through holes. When the prefabricated composite panel is used as a wall panel, the concrete rib on the left side of the prefabricated concrete channel plate and the right side of the prefabricated concrete channel plate The concrete ribs on the sides are all provided with bolt connection holes B, and at the same time, the concrete ribs on the side of the precast concrete channel slab and the concrete ribs on the lower side of the precast concrete channel slab are all provided with bolt connection holes A; When used as a floor slab, the concrete ribs on the left side of the precast concrete channel slab and the concrete ribs on the right side of the precast concrete channel slab are provided with bolt connection holes B. At the same time, the concrete ribs on the supporting side of the precast concrete channel slab and the The concrete ribs on the lower support side of the prefabricated concrete channel slab are all provided with through holes for inserting reinforcement.

When the prefabricated composite slab is used as a hanging slab, the precast concrete channel slab is also provided with a pre-embedded pendant, and the pre-embedded pendant is located in the concrete rib on the supporting side of the precast concrete trough-shaped slab and in the concrete rib on the lower supporting side of the precast concrete trough-shaped slab .

The prefabricated building board provided by the utility model can be applied to building exterior walls, interior walls and floor slabs, and can also be used in other non-load-bearing structures. Its technical characteristics are:

1. The prefabricated composite panel is formed by embedding the aerated concrete slab into the precast concrete channel slab. It has good overall performance, high structural strength and light weight.

2. There are connection holes on the side of the prefabricated composite panel, and screws can be used to connect the components, that is, the screw connection hole A and the screw connection hole B set in the precast concrete channel plate.

3. There are socket holes at the upper and lower ends of the prefabricated composite board, which can be connected with the structure by inserting ribs, that is, the through holes for inserting ribs set by the precast concrete channel plate.

4. Prefabricated composite panels and cast-in-place concrete can be connected by reserved steel bars on the prefabricated components.

5. The left side of the precast concrete channel plate of the prefabricated composite panel is provided with an outer protrusion, and the right side of the precast concrete channel plate is provided with an outer groove, which is convenient for interlocking of adjacent precast concrete channel plates.

6. The sides of the aerated concrete slab are respectively made into concave-convex shapes or all of them are groove-shaped or all of them are convex. It forms concave-convex groove splicing with the filling groove, and the overall performance is good.

7. Metal or non-metal connectors can be used to connect the aerated concrete slab and the precast concrete channel slab.

The above-mentioned structure utilizes the advantages of light weight and good thermal insulation performance of aerated concrete slabs, and adopts prefabricated concrete slabs as stress components and maintenance components, which solves the disadvantages of large shrinkage of aerated concrete slabs and easy cracking during use, and at the same time reduces The weight of concrete members and the amount of steel used. The protrusion and groove in the filling groove of the prefabricated concrete channel plate and the protrusion groove on the side of the aerated concrete plate are used to form an embedded matching connection to ensure the close connection and structural strength of the two. Because the two adopt the combination method of groove embedding, this structure has the structural strength requirements of precast concrete slabs, and the strength is high. In the channel plate, so the weight of the whole structure becomes lighter.

The utility model has a wide range of applications. For example, when the above structure is used for floor or wall parts of buildings, the prefabricated composite panels can be used in combination to form floor structures and wall structures for buildings, which are collectively referred to as wall structures. Building parts. Therefore, in order to make the overall performance of the wall parts good and the structural strength high, the wall and building parts include wall parts and floor parts. The wall parts include at least two prefabricated composite panels, and adjacent prefabricated composite panels Arranged side by side, the outer side of any prefabricated composite panel protrudes into the outer groove on the right side of the adjacent prefabricated composite panel on the left side, and the bolt connection hole B between two adjacent prefabricated composite panels Opposite, and screw members are inserted into the bolt connection hole B to form the connection between two adjacent prefabricated building panels; the floor parts include at least two prefabricated composite panels, adjacent prefabricated composite panels are arranged side by side, and any one of the prefabricated composite panels The outer protrusion on the left side of the board is inserted into the outer groove on the right side of the adjacent prefabricated composite board on the left side, and the bolt connection holes B between the two adjacent prefabricated building boards are opposite one by one and inserted by screw members The connection between two adjacent prefabricated composite panels is formed in the bolt connection hole B.

The manufacturing method of the utility model is: adopt an independent aerated concrete slab, place it in the precast concrete trough-shaped slab mold, then pour concrete into the precast concrete trough-shaped slab mold, form the precast concrete trough-shaped slab after drying, like this, The prefabricated concrete channel slab completely embeds the aerated concrete slab together, and the overall performance is excellent. Alternatively, after splicing a plurality of concave-convex grooves of the aerated concrete slabs, place them together in the precast concrete grooved slab mold, and the rest of the steps are the same as above.

In the existing low-rise residential buildings, the commonly used structural system mainly focuses on the masonry structure, including brick masonry, concrete block and other non-sintered masonry, etc., and its construction method is still traditional manual masonry. The failure form of this type of structure belongs to brittle failure, and its ability to resist large earthquakes is poor. Therefore, the standard requires the use of cast-in-place concrete structural columns and ring beams to enhance its seismic performance. The extensive use of manual masonry in masonry structures makes its construction quality uneven and difficult to guarantee effectively. At present, the floor structure is mainly cast-in-place. During the construction process, a large number of formwork and scaffolding are required, resulting in high cost of construction measures, and because it is difficult to use ready-made concrete in some areas, it is difficult to ensure the quality of the concrete mixed on site. . The prefabricated hollow-core slabs, which were widely used from the 1970s to the mid-1990s, have poor floor integrity due to the absence of a clear connection between the slab and the wall and between the slabs.

The use of the utility model needs to be designed with reference to the requirements of national standards for masonry structures. In general, construction can be carried out according to standardized design documents rather than separate design documents. The standardized design documents should specify the applicable conditions of buildings, such as simple board houses.

Advantage of the utility model:

Compared with the currently used composite panels, this patented product combines the advantages of aerated concrete panels (blocks) and prefabricated concrete components, and has the following characteristics: 1. The connection between panels and building structures is more convenient and reliable; 2. It overcomes the disadvantages that aerated concrete shrinks greatly during use and is not suitable for use in humid environments; 3. Utilizes the strength of aerated concrete itself, and alleviates the disadvantages of heavy weight and high material consumption of similar sandwich panels.

Description of drawings

Fig. 1 is a schematic diagram of setting protrusions around the air-entrained concrete slab.

Fig. 2 is a schematic diagram of setting grooves around the aerated concrete slab.

Fig. 3 is a three-dimensional schematic diagram of protrusions arranged around the aerated concrete slab.

Fig. 4 is a schematic diagram of a prefabricated concrete channel slab.

Fig. 5 is a schematic diagram of splicing two prefabricated concrete channel slabs after two aerated concrete slabs are spliced and embedded in the prefabricated concrete channel slab.

Fig. 6 is a schematic diagram of splicing two prefabricated concrete channel slabs after one aerated concrete slab is embedded in the prefabricated concrete channel slab.

The reference signs in the figure are respectively represented as: 1, aerated concrete slab; 11, protrusion; 12, groove; 2, prefabricated concrete channel plate; 21, filling groove; 22, inner groove; 24, outer Protrusion; 25, outer groove; 26, through hole for inserting ribs; 27, bolt connection hole A; 28, bolt connection hole B.

Detailed ways

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figure 1 to Figure 6.

The prefabricated composite panel includes a precast concrete channel panel 2, the upper end surface of the precast concrete channel panel 2 is provided with a filling groove 21, and one or at least two aerated concrete panels 1 are arranged in the filling groove 21;

When only one aerated concrete slab 1 is provided in the filling groove 21, the periphery of the aerated concrete slab 1 is provided with a protrusion 11 or \ and a groove 12, and correspondingly, the filling groove 21 faces the inside of the protrusion 11. The side is provided with an inner groove 22, and the protrusion 11 is embedded in the inner groove 22. Correspondingly, the inner surface of the filling groove 21 facing the groove 11 is provided with an inner protrusion, and the inner protrusion is embedded in the groove 11;

When at least two aerated concrete slabs 1 are arranged in the filling groove 21, among two adjacent aerated concrete slabs 1, one side of one aerated concrete slab 1 is provided with a protrusion A, and the other aerated concrete slab 1 The opposite side of the plate 1 is provided with a groove A, and the protrusion A111 is embedded in the groove A112, and two adjacent aerated concrete slabs 1 form concave-convex groove splicing, and all the aerated concrete slabs 1 are spliced to form a spliced aerated For the concrete slab, the inner surface of the filling groove 21 is provided with an inner groove 22 or \ and inner protrusions, and the periphery of the spliced aerated concrete slab is provided with corresponding protrusions or \ and grooves, and the periphery of the spliced aerated concrete slab and the filling The inner surface of the groove 21 forms a concavo-convex groove joint.

The left side of the precast concrete channel plate 2 is provided with an outer protrusion 24, and the right side of the precast concrete channel plate 2 is provided with an outer groove 25. Among the two adjacent precast concrete channel plates 2, one of the precast concrete The outer protrusion 24 of the channel plate 2 is embedded into the outer groove 25 of another precast concrete channel plate 2 , and two adjacent precast concrete channel plates 2 form concave-convex splicing.

The prefabricated concrete channel slab is also provided with connection holes.

The connection holes include bolt connection holes A, bolt connection holes B and reinforcement through holes. When the prefabricated composite panel is used as a wall panel, the concrete rib on the left side of the prefabricated concrete channel plate and the right side of the prefabricated concrete channel plate The concrete ribs on the sides are all provided with bolt connection holes B28, and at the same time, the concrete ribs on the side of the precast concrete channel slab and the concrete ribs on the lower side of the precast concrete channel slab are all provided with bolt connection holes A27; When used as a floor slab, the concrete ribs on the left side of the precast concrete channel slab and the concrete ribs on the right side of the precast concrete channel slab are provided with bolt connection holes B28. At the same time, the concrete ribs on the supporting side of the precast concrete channel slab and the The concrete ribs on the lower support side of the prefabricated concrete channel slab are all provided with through holes 26 for inserting ribs.

When the prefabricated composite slab is used as a hanging slab, the precast concrete channel slab is also provided with a pre-embedded pendant, and the pre-embedded pendant is located in the concrete rib on the supporting side of the precast concrete trough-shaped slab and in the concrete rib on the lower supporting side of the precast concrete trough-shaped slab .

The prefabricated building board provided by the utility model can be applied to building exterior walls, interior walls and floor slabs, and can also be used in other non-load-bearing structures. Its technical characteristics are:

1. The prefabricated composite panel is formed by embedding the aerated concrete slab into the precast concrete channel slab. It has good overall performance, high structural strength and light weight.

2. There are connection holes on the side of the prefabricated composite panel, and screws can be used to connect the components, that is, the screw connection hole A and the screw connection hole B set in the precast concrete channel plate.

3. There are socket holes at the upper and lower ends of the prefabricated composite board, which can be connected with the structure by inserting ribs, that is, the through holes for inserting ribs set by the precast concrete channel plate.

4. Prefabricated composite panels and cast-in-place concrete can be connected by reserved steel bars on the prefabricated components.

5. The left side of the precast concrete channel plate of the prefabricated composite panel is provided with an outer protrusion, and the right side of the precast concrete channel plate is provided with an outer groove, which is convenient for interlocking of adjacent precast concrete channel plates.

6. The sides of the aerated concrete slab are respectively made into concave-convex shapes or all of them are groove-shaped or all of them are convex. It forms concave-convex groove splicing with the filling groove, and the overall performance is good.

7. Metal or non-metal connectors can be used to connect the aerated concrete slab and the precast concrete channel slab.

The above-mentioned structure utilizes the advantages of light weight and good thermal insulation performance of aerated concrete slabs, and adopts prefabricated concrete slabs as stress components and maintenance components, which solves the disadvantages of large shrinkage of aerated concrete slabs and easy cracking during use, and at the same time reduces The weight of concrete members and the amount of steel used. The protrusion and groove in the filling groove of the prefabricated concrete channel plate and the protrusion groove on the side of the aerated concrete plate are used to form an embedded matching connection to ensure the close connection and structural strength of the two. Because the two adopt the combination method of groove embedding, this structure has the structural strength requirements of precast concrete slabs, and the strength is high. In the channel plate, so the weight of the whole structure becomes lighter.

The utility model has a wide range of applications. For example, when the above structure is used for floor or wall parts of buildings, the prefabricated composite panels can be used in combination to form floor structures and wall structures for buildings, which are collectively referred to as wall structures. Building parts. Therefore, in order to make the overall performance of the wall parts good and the structural strength high, the wall and building parts include wall parts and floor parts. The wall parts include at least two prefabricated composite panels, and adjacent prefabricated composite panels Arranged side by side, the outer side of any prefabricated composite panel protrudes into the outer groove on the right side of the adjacent prefabricated composite panel on the left side, and the bolt connection hole B between two adjacent prefabricated composite panels Opposite, and screw members are inserted into the bolt connection hole B to form the connection between two adjacent prefabricated building panels; the floor parts include at least two prefabricated composite panels, adjacent prefabricated composite panels are arranged side by side, and any one of the prefabricated composite panels The outer protrusion on the left side of the board is inserted into the outer groove on the right side of the adjacent prefabricated composite board on the left side, and the bolt connection holes B between the two adjacent prefabricated building boards are opposite one by one and inserted by screw members The connection between two adjacent prefabricated composite panels is formed in the bolt connection hole B.

The manufacturing method of the utility model is: adopt an independent aerated concrete slab, place it in the precast concrete trough-shaped slab mold, then pour concrete into the precast concrete trough-shaped slab mold, form the precast concrete trough-shaped slab after drying, like this, The prefabricated concrete channel slab completely embeds the aerated concrete slab together, and the overall performance is excellent. Alternatively, after splicing a plurality of concave-convex grooves of the aerated concrete slabs, place them together in the precast concrete grooved slab mold, and the rest of the steps are the same as above.

In the existing low-rise residential buildings, the commonly used structural system mainly focuses on the masonry structure, including brick masonry, concrete block and other non-sintered masonry, etc., and its construction method is still traditional manual masonry. The failure form of this type of structure belongs to brittle failure, and its ability to resist large earthquakes is poor. Therefore, the standard requires the use of cast-in-place concrete structural columns and ring beams to enhance its seismic performance. The extensive use of manual masonry in masonry structures makes its construction quality uneven and difficult to guarantee effectively. At present, the floor structure is mainly cast-in-place. During the construction process, a large number of formwork and scaffolding are required, resulting in high cost of construction measures, and because it is difficult to use ready-made concrete in some areas, it is difficult to ensure the quality of the concrete mixed on site. . The prefabricated hollow-core slabs, which were widely used from the 1970s to the mid-1990s, have poor floor integrity due to the absence of a clear connection between the slab and the wall and between the slabs.

The use of the utility model needs to be designed with reference to the requirements of national standards for masonry structures. In general, construction can be carried out according to standardized design documents rather than separate design documents. The standardized design documents should specify the applicable conditions of buildings, such as simple board houses.

As mentioned above, the utility model can be well realized.

Claims (5)

1. precast composite slab, is characterized in that: comprise precast concrete trough slab (2), the upper surface of precast concrete trough slab (2) is provided with filling groove (21), is provided with 1 or at least 2 aerated concrete panels (1) in filling groove (21);

While being only provided with 1 aerated concrete panel (1) in filling groove (21), the periphery of aerated concrete panel (1) be provided with projection (11) or and groove (12), accordingly, filling groove (21) is provided with inboard groove (22) towards the medial surface of projection (11), projection (11) is embedded in inboard groove (22), accordingly, filling groove (21) is provided with inner bulge towards the medial surface of groove (11), and inner bulge is embedded in groove (11);

While being provided with at least 2 aerated concrete panels (1) in filling groove (21), in adjacent 2 aerated concrete panels (1), one side of an aerated concrete panel (1) is provided with protruding A, another one aerated concrete panel (1) side on the other side is provided with groove A, projection A is embedded in groove A, adjacent 2 aerated concrete panels (1) form tongue and groove splicing, after all aerated concrete panels (1) splicing, form splicing aerated concrete panel, the medial surface of filling groove (21) be provided with inboard groove (22) or and inner bulge, splicing aerated concrete panel periphery be provided with corresponding projection or and groove, the splicing periphery of aerated concrete panel and the medial surface of filling groove (21) form tongue and groove splicing.

2. precast composite slab according to claim 1, it is characterized in that: the left surface of precast concrete trough slab (2) is provided with outside and protrudes (24), the right flank of precast concrete trough slab (2) is provided with outside groove (25), in adjacent 2 precast concrete trough slabs (2), wherein the outside of a precast concrete trough slab (2) protrusion (24) is embedded in the outside groove (25) of an other precast concrete trough slab (2), and adjacent 2 precast concrete trough slabs (2) form tongue and groove splicing.

3. precast composite slab according to claim 1, is characterized in that: precast concrete trough slab is also provided with connecting hole.

4. precast composite slab according to claim 3, it is characterized in that: described connecting hole comprises bolt connecting hole A and bolt connecting hole B and joint bar through hole, when precast composite slab is used as wallboard part, the precast concrete trough slab left side concrete rib on limit and the concrete rib of precast concrete trough slab right edge are provided with bolt connecting hole B(28), meanwhile, the concrete rib of the concrete rib of precast concrete trough slab upper side edge and precast concrete trough slab lower side is provided with bolt connecting hole A(27); When precast composite slab is used as floor part, the precast concrete trough slab left side concrete rib on limit and the concrete rib of precast concrete trough slab right edge are provided with bolt connecting hole B(28), meanwhile, the concrete rib on the concrete rib on precast concrete trough slab upper support limit and precast concrete trough slab lower support limit is provided with joint bar through hole (26).

5. precast composite slab according to claim 1, it is characterized in that: when precast composite slab is used as link plate, precast concrete trough slab is also provided with embedded hanging part, and embedded hanging part is positioned at the concrete rib on precast concrete trough slab upper support limit and the concrete rib on precast concrete trough slab lower support limit.