Formwork system for cast-in-place belt of fabricated structure

Abstract

The utility model provides a formwork system for a cast-in-place belt of an assembly type structure. The formwork system comprises a laminated plate, a formwork, at least two square wood columns, a plurality of connecting pieces, at least two supports, an iron wire and a supporting rod. The square wood columns are arranged on the formwork at intervals through the connecting pieces. One end of the connecting piece away from the wood brace protrudes out of the template; the bottom end of the support is connected with the laminated plates on the two sides and used for bearing the supporting rod. The supporting rods are connected with the connecting pieces through iron wires. The device is simple in structure and convenient to construct, the construction efficiency is effectively improved, and the construction cost is reduced; the erection of a traditional support frame is reduced, the damage of the support frame to the composite floor slab is avoided, and the construction quality is improved; and meanwhile, adjustment can be conveniently conducted according to the formwork installation condition, the formwork and the laminated slab are attached more tightly, grout leakage in the concrete pouring process is avoided, and the construction quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, in particular to a template system for an assembled structure cast-in-place belt. Background Art

[0002] At present, prefabricated buildings are booming across the country, especially prefabricated composite floor slabs are widely used. A joint cast-in-place concrete strip is reserved between the two composite slabs. The cast-in-place strip is constructed after the composite slabs on both sides are installed. Generally, a ground-based formwork support frame is set up on the lower floor slab of the cast-in-place strip to be constructed. During the support process, it is difficult to accurately control the construction force. Once the support is too tight, it will cause the assembled floors on both sides to warp, crack and be uneven, resulting in the template and the prefabricated floor slab not fitting tightly, and the post-casting strip leaks seriously during the concrete pouring process, the board surface is uneven, and the board surface cracks; on the other hand, the support frame is reinforced with diagonal braces, which will cause the local force of the template to be large, resulting in insufficient fit between the template and the prefabricated wall. During the concrete pouring process, the post-casting strip leaks seriously and the mold expands, affecting the appearance quality of the cast-in-place strip at the bottom of the board. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a formwork system for cast-in-place strips of prefabricated structures, which has a simple structure and is convenient to construct, and can effectively improve construction efficiency and quality.

[0004] The technical solution adopted by the utility model is: a formwork system for cast-in-place strips of assembled structures, comprising a laminated plate and a formwork, a reserved space is provided between the laminated plates on both sides for pouring cast-in-place strip concrete, and also comprises at least two wooden beams, a connecting piece, at least two brackets, iron wires and support rods;

[0005] The wooden beams are arranged on the template at intervals through the connecting pieces;

[0006] One end of the connecting piece located below the reserved space and away from the wooden beam protrudes out of the template;

[0007] The bottom end of the bracket is respectively connected to the overlapping plates on both sides for supporting the support rod;

[0008] The support rod is connected to the connecting piece through the iron wire.

[0009] Further, the bracket includes a supporting portion, a connecting portion and an inclined rod;

[0010] The support portion is located above the reserved space;

[0011] The oblique rods are arranged at both ends of the supporting part and are respectively connected to the connecting parts;

[0012] The connecting portion is fixed to the laminated plate via a fixing member.

[0013] Furthermore, there are two wooden beams, which are arranged parallel to the intersection of the composite board and the reserved space and are located below the intersection.

[0014] There are multiple wooden beams, which are arranged perpendicular to the intersection of the composite board and the reserved space.

[0015] Furthermore, the connecting members of the plurality of wooden beams are arranged relative to each other.

[0016] Furthermore, the projection width of the wooden beam on the composite board is not less than 20 mm.

[0017] Furthermore, the length of the iron wire between the support rod and the connecting member is the same.

[0018] Furthermore, the support portion is flush with a preset top surface of the cast-in-place zone.

[0019] Furthermore, the supporting portion is lower than a preset top surface of the cast-in-place zone.

[0020] Furthermore, the connecting portion includes at least two support rods located in the same plane, and the support rods are attached to the composite plate.

[0021] The advantages and positive effects of the utility model are as follows: the formwork system for the cast-in-place strip of the prefabricated structure involved in the present application has a simple structure and is convenient to construct, which effectively improves the construction efficiency and reduces the construction cost; it reduces the erection of traditional support frames, avoids damage to the composite floor slabs by the support frames, and improves the construction quality; at the same time, it is easy to adjust according to the installation situation of the formwork, so that the formwork and the composite slab fit more closely, avoids leakage of concrete during the pouring process, and improves the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0023] Figure 2 It is a top view of a specific embodiment of the utility model.

[0024] In the figure:

[0025] 1. Composite slab 2. Cast-in-place structure 201. Cast-in-place belt

[0026] 3. Support rod 4, bracket 401, support part

[0027] 402, inclined rod 403, connecting part 5, iron wire

[0028] 6. Wooden beams 7. Connectors 8. Formwork DETAILED DESCRIPTION

[0029] The embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0030] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "one side", "one end", "the other end", "middle", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] In a specific embodiment of the present application, Figure 1-Figure 2 As shown, the utility model proposes a formwork system for cast-in-place strips of prefabricated structures, including: a composite plate 1, a formwork 8, at least two wooden beams 6, a plurality of connecting members 7, at least two brackets 4, a wire 5 and a support rod 3; each component is described in detail below.

[0032] The composite slab 1 has been installed in advance, and a reserved space is set between the composite slabs 1 on both sides for pouring concrete of the cast-in-place strip 201. The cast-in-place structure 2 also includes a portion located above the composite slab 1, and is poured synchronously with the cast-in-place strip 201, so that after the cast-in-place structure 2 is completed, it is connected with the composite slab 1 to form an integral structure;

[0033] The template 8 extends from the bottom of the reserved space to the composite plates 1 on both sides, and is arranged in close contact with the composite plates 1, so that the concrete at the cast-in-place belt 201 is flush with the composite plates 1 after being finalized;

[0034] The wooden beam 6 is arranged at intervals on the template 8 through the connecting piece 7, and is arranged on the side of the template 8 away from the composite board 1;

[0035] One end of the connecting member 7 located below the reserved space and away from the wooden beam 6 protrudes out of the template 8, that is, the protruding end of the connecting member 7 is located in the reserved space;

[0036] The bottom ends of the brackets 4 are respectively connected to the laminated plates 1 on both sides to support the support rods 3;

[0037] The support rod 3 is connected to the connecting piece 7 through the iron wire 5, and thus connected to the formwork 8 and the wooden beam to form a whole, and stably supported by the bracket 4. Finally, the formwork 8 and the wooden beam 6 are suspended below the reserved space and firmly fixed to the composite slab 1, providing stable support for the pouring of concrete in the cast-in-place zone 201. The overall structure is simple, the connection is stable, and the installation is convenient. It will not cause damage to the composite slab 1, while ensuring the quality of concrete pouring.

[0038] Preferably, the bracket 4 includes a supporting portion 401, a connecting portion 403 and an inclined rod 402, the supporting portion 401 is located above the reserved space, the inclined rod 402 is arranged at both ends of the supporting portion 401 and is respectively connected to the connecting portion 403; the connecting portion 403 is fixed to the composite plate 1 through a fixing member.

[0039] In this embodiment, the support portion 401 and the diagonal rod 402 are located in the same plane, which is perpendicular to the composite plate 1; the support rod 3 is vertically arranged on the support portion 401; the connecting portion 403 includes at least two support rods located in the same plane, and the support rods are attached to the composite plate 1, so that the bracket 4 itself has good stability. After being further fixed by the fixing parts, a stable support is formed for the support rod 3, which is not easy to be deformed under the action of the gravity of the formwork 8, the wooden beam 6 and the concrete of the cast-in-place belt 201. At the same time, it has good impact resistance and the ability to resist the impact force formed by the concrete during the pouring process, and is not easy to tip sideways.

[0040] The present invention is described in detail below through specific examples.

[0041] Example 1

[0042] like Figure 1-Figure 2 As shown, a formwork system for cast-in-place strips of prefabricated structures includes: a composite plate 1, a formwork 8, two wooden beams 6, a plurality of connecting members 7, a plurality of brackets 4, a wire 5 and a support rod 3;

[0043] A reserved space is provided between the composite plates 1 on both sides for pouring concrete of the cast-in-place strip 201. The direction in which the reserved space and the composite plates 1 extend at the junction is the length direction of the reserved space, and the direction in which the reserved space and the composite plates 1 are connected is the width direction of the reserved space.

[0044] The template 8 extends from the bottom of the reserved space to the laminated plates 1 on both sides and is arranged in close contact with the laminated plates 1; the overlap width between the template 8 and the laminated plates 1 on both sides is not less than 100 mm;

[0045] The wooden beam 6 is fixed to the formwork 8 by the connecting piece 7, and is parallel to the boundary between the composite board 1 and the reserved space, that is, it is arranged along the length direction of the reserved space, and its specific position is below the boundary; the projection width of the wooden beam 6 on the composite board 1 is not less than 20 mm. Through this arrangement, the composite board 1 and the wooden beam respectively restrain the formwork 8 from both sides of the formwork 8, making it easier for the formwork 8 to fit the composite board 1, avoiding movement and deformation during the pouring process, and having good stability.

[0046] In this embodiment, the connecting members 7 of the two wooden beams 6 are arranged opposite to each other, and one end of the connecting member 7 located below the reserved space away from the wooden beam 6 protrudes out of the template 8 and extends into the reserved space;

[0047] A plurality of brackets 4 are dispersedly arranged along the length direction of the reserved space, and the brackets 4 include a supporting portion 401, a connecting portion 403 and an inclined rod 402. The supporting portion 401 is located above the reserved space, and the inclined rod 402 is arranged at both ends of the supporting portion 401 and is respectively connected to the connecting portion 403; the connecting portion 403 is fixed to the composite plate 1 by a fixing member.

[0048] The support rod 3 is vertically arranged on the support part 401, that is, the support rod 3 is arranged along the length direction of the reserved space; the support rod 3 is connected to the connecting pieces 7 located opposite to each other on the two wooden beams 6 through the iron wire 5. Specifically, the iron wire 5 is connected to one end of the connecting piece 7 protruding from the template 8.

[0049] The length of the wire 5 between the support rod 3 and the connecting piece 7 is the same, so that the support rod 3 is at the same distance from the two connecting pieces 7 and is subjected to the same pulling force from the wire 5 on both sides, preventing the support rod 3 from moving sideways and affecting the stability of the entire device.

[0050] The part where the iron wire 5 contacts the support rod 3 is the hanging point, and the distance between adjacent hanging points is not more than 600 mm; the distance is determined according to the width of the reserved space and the installation condition of the template 8, so that the template 8 can be stably fixed and tightly fit to the composite board 1.

[0051] In this embodiment, the support portion 401 of the bracket 4 is flush with the preset top surface of the cast-in-place strip 201, that is, the pouring surface of the concrete can be controlled by the support portion 401. After pouring, the support portion 401 is buried in the concrete.

[0052] Example 2

[0053] A formwork system for cast-in-place strips of assembled structures, comprising: a composite plate 1, a formwork 8, a plurality of wooden beams 6, a plurality of connecting members 7, a plurality of brackets 4, iron wires 5 and a support rod 3;

[0054] A reserved space is provided between the composite plates 1 on both sides for pouring concrete of the cast-in-place strip 201. The direction in which the boundary between the reserved space and the composite plate 1 extends is the length direction of the reserved space, and the direction in which the reserved space is connected to the composite plate 1 is the width direction of the reserved space. In this embodiment, the length and width of the reserved space are both greater than the length and width in Embodiment 1.

[0055] The template 8 extends from the bottom of the reserved space to the laminated plates 1 on both sides and is arranged in close contact with the laminated plates 1; the overlap width between the template 8 and the laminated plates 1 on both sides is not less than 100 mm;

[0056] The wooden beam 6 is fixed to the template 8 by the connecting piece 7 and is perpendicular to the junction between the composite board 1 and the reserved space, that is, it is arranged along the width direction of the reserved space. Several wooden beams 6 are dispersedly arranged along the length direction of the reserved space. Through this arrangement, the wooden beams 6 form a good support for the composite board 1, so that the template 8 can fit the composite board 1, avoiding movement and deformation during the pouring process, and having good stability.

[0057] In this embodiment, the connecting members 7 of the plurality of wooden beams 6 are arranged relative to each other, and the connecting line between at least two rows of connecting members 7 is parallel to the length direction of the reserved space and has the same relative position as the composite board 1; one end of the connecting member 7 away from the wooden beam 6 protrudes out of the template 8 and extends into the reserved space;

[0058] A plurality of brackets 4 are dispersedly arranged along the length direction of the reserved space, and the brackets 4 include a supporting portion 401, a connecting portion 403 and an inclined rod 402. The supporting portion 401 is located above the reserved space, and the inclined rod 402 is arranged at both ends of the supporting portion 401 and is respectively connected to the connecting portion 403; the connecting portion 403 is fixed to the composite plate 1 by a fixing member.

[0059] The support rod 3 is vertically arranged on the support part 401 , that is, the support rod 3 is arranged along the length direction of the reserved space; the support rod 3 is connected to the connecting pieces 7 located opposite to each other on the two wooden beams 6 through the iron wire 5 .

[0060] The support rod 3 is aligned with the center of the line connecting the two connecting parts 7 connected to it, so that the support rod 3 is at the same distance from the two connecting parts 7 and is subjected to the same pulling force from the iron wires 5 on both sides, preventing the support rod 3 from moving sideways and affecting the stability of the overall device.

[0061] The part where the iron wire 5 contacts the support rod 3 is the hanging point, and the distance between adjacent hanging points is not more than 600 mm; the distance is determined according to the width of the reserved space and the installation condition of the template 8, so that the template 8 can be stably fixed and tightly fit to the composite board 1.

[0062] In this embodiment, the support portion 401 of the bracket 4 is lower than the preset top surface of the cast-in-place belt 201, and its height is set to match the support rod 3, so that the support rod 3 is easy to disassemble after the casting is completed.

[0063] Example 3

[0064] A method for using a formwork system for a cast-in-place strip of an assembled structure, specifically comprising the following steps:

[0065] The template 8 is connected to the wooden beam through the connecting piece 7, and the connecting piece 7 is made of iron nails;

[0066] Measure and lay out on the template 8 to determine the boundary between the laminated board 1 and the reserved space;

[0067] The two opposite connecting pieces 7 are connected by a wire 5;

[0068] Place the bracket 4 on the composite plate 1, and disperse and arrange multiple brackets 4 along the length direction of the reserved space, and fix them by fixing parts; the fixing parts are made of iron nails; the bracket 4 is made of steel bars;

[0069] Install the support rod 3 on the bracket 4;

[0070] Temporarily fix the template 8 at a preset position;

[0071] Connect the iron wire 5 and the support rod 3 so that the template 8 fits the composite board 1; specifically, the iron wire 5 and the support rod 3 are connected by binding;

[0072] After the concrete pouring is completed and reaches the set strength, the support rods 3 and the formwork 8 are removed for turnover use.

[0073] The formwork system for cast-in-place strips of prefabricated structures involved in the present application has a simple structure and is convenient to construct, which effectively improves construction efficiency and reduces construction costs; it reduces the erection of traditional support frames, avoids damage to composite floor slabs caused by support frames, and improves construction quality; at the same time, it is easy to adjust according to the formwork installation situation, so that the formwork and the composite slab fit more closely, avoids leakage of concrete during the pouring process, and improves construction quality.

[0074] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A formwork system for cast-in-place strips of prefabricated structures, comprising a laminated plate and a formwork, with a reserved space provided between the laminated plates on both sides for pouring cast-in-place strip concrete, characterized in that: Also includes at least two wooden beams, connectors, at least two brackets, wires and support rods; The wooden beams are arranged on the template at intervals through the connecting pieces; One end of the connecting piece located below the reserved space and away from the wooden beam protrudes out of the template; The bottom end of the bracket is respectively connected to the overlapping plates on both sides for supporting the support rod; The support rod is connected to the connecting piece through the iron wire.

2. The formwork system for cast-in-place strips of prefabricated structures according to claim 1 is characterized in that: The bracket comprises a supporting portion, a connecting portion and an inclined rod; The supporting portion is located above the reserved space; The oblique rods are arranged at both ends of the supporting part and are respectively connected to the connecting parts; The connecting portion is fixed to the laminated plate via a fixing member.

3. The formwork system for cast-in-place strips of prefabricated structures according to claim 2 is characterized in that: There are two wooden beams, which are arranged parallel to the intersection between the composite board and the reserved space and are located below the intersection.

4. The formwork system for cast-in-place strips of prefabricated structures according to claim 2 is characterized in that: There are multiple wooden beams, which are arranged perpendicular to the intersection of the composite board and the reserved space.

5. The formwork system for cast-in-place strips of prefabricated structures according to claim 3 or 4, characterized in that: The connecting pieces of the plurality of wooden beams are arranged relative to each other.

6. The formwork system for cast-in-place strips of prefabricated structures according to claim 3, characterized in that: The projection width of the wooden beam on the composite board is not less than 20 mm.

7. The formwork system for cast-in-place strips of prefabricated structures according to claim 4, characterized in that: The iron wire between the support rod and the connecting member has the same length.

8. The formwork system for cast-in-place strips of prefabricated structures according to claim 2, characterized in that: The support portion is flush with a preset top surface of the cast-in-place belt.

9. The formwork system for cast-in-place strips of prefabricated structures according to claim 2, characterized in that: The supporting portion is lower than a preset top surface of the cast-in-place belt.

10. The formwork system for cast-in-place strips of prefabricated structures according to claim 2, characterized in that: The connecting portion includes at least two support rods located in the same plane, and the support rods are attached to the composite plate.

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