Foam-molding structure for reserved grooves at tops of beams and columns in prefabricated concrete house

Abstract

The present invention relates to a foam-molding structure for reserved grooves at tops of beams and columns in a prefabricated concrete house, comprising concrete pouring mold cavities of a modular prefabricated house that are defined by a beam mold, a column mold, a floor panel mold, support rods, and diagonal support rods. Reinforcing cages and stirrups are pre-arranged in the concrete pouring mold cavities. Elongated foam modules are fixed in the concrete pouring mold cavities at the tops of beams and columns of modular prefabricated houses that are assembled. The tops of the elongated foam modules are flush with the tops of the concrete pouring mold cavities at the tops of the beams and the columns. In the present invention, by providing fixed elongated foam modules, no aluminum formwork needs to be additionally designed, thereby shortening design time and reducing cost, avoiding manual chiseling after concrete pouring, and saving manpower and material resources. Foam bricks are placed in mold cavities or a foam sealant is sprayed into an iron wire mesh groove, thereby reducing cost and facilitating construction. During construction, the foam bricks simply need to be orderly arranged in the mold cavities, thereby greatly shortening construction time and accelerating construction progress.

Description

Foam forming structure of reserved groove at top of beam and column of prefabricated assembly house TECHNICAL FIELD

[0001] The present application relates to the technical field of fabricated buildings, in particular to a foam forming structure of reserved groove at the top of beam and column of prefabricated assembly house. BACKGROUND

[0002] In the construction project of modular integrated construction (MiC), concrete pouring is an important process of concrete MiC construction, which is directly related to the overall quality of the module. At present, in order to meet the needs of on-site assembly connection between prefabricated MiC horizontal modules, improve the integrity and stiffness of the whole house, and set a reserved groove at the top of the short-span beam and column of the connected prefabricated horizontal module to pre-bury the steel bar, and then pour concrete to complete the rigid connection of the two horizontal modules, which has become a necessary construction process. However, since the reserved groove at the top of the beam and column must pass through the beam and column joint area, the beam transverse steel bars and stirrups are arranged in a staggered manner with the column longitudinal steel bars and stirrups. At present, in the concrete construction, the prefabricated beam and column reserved top groove is formed by using a shaped aluminum formwork or manually excavating later. The operation process of erecting and dismantling the formwork is relatively complex, time-consuming and labor-intensive, the formwork turnover frequency is low, the construction cost is high, and the manual post-excavation of the groove not only consumes time and labor, but also increases the labor cost. SUMMARY

[0003] The present application aims to overcome the above problems and deficiencies, and provides a foam forming structure of reserved groove at the top of beam and column of prefabricated assembly house, which overcomes the problems of difficult design and high cost of existing aluminum formwork reserved groove formwork, and realizes one-time pouring and forming of concrete MIC module, reducing the damage to the concrete structure caused by post-excavation.

[0004] The technical scheme adopted by the present application is as follows: a foam forming structure of reserved groove at the top of beam and column of prefabricated assembly house, comprising a unit module prefabricated assembly house concrete pouring mold cavity surrounded by a beam mold, a column mold, a floor slab mold, a support rod and an inclined support rod, a steel cage and stirrups are pre-installed in the concrete pouring mold cavity, and a long strip-shaped foam module is fixed in the concrete pouring mold cavity at the top of the beam and column of the spliced unit module prefabricated assembly house, and the top of the long strip-shaped foam module is flush with the top of the concrete pouring mold cavity at the top of the beam and column.

[0005] Further, the long strip-shaped foam module includes at least one spliced foam brick adapted to be placed in the mold cavity cut by a cutter.

[0006] Further, the long strip-shaped foam module is surrounded by a wire mesh, and the wire mesh is hung on the steel cage.

[0007] Further, the long strip-shaped foam module comprises a wire mesh groove bent into an open right-angle long groove and foamed glue sprayed in the wire mesh groove, and the wire mesh groove is hung on the steel cage.

[0008] Further, the long strip-shaped foam module comprises a combination of foamed glue and foam bricks.

[0009] Further, the longitudinal section of the long strip-shaped foam module comprises a rectangular surface or an arc surface, and the long strip-shaped foam module is provided with a void position at the intersection of the column top steel bars.

[0010] Further, the splicing mode of the spliced unit module prefabricated assembly house comprises horizontal splicing and vertical splicing, and the long strip-shaped foam module comprises horizontal long strip-shaped foam modules and vertical long strip-shaped foam modules.

[0011] Further, the horizontal long strip-shaped foam module or the vertical long strip-shaped foam module has a width of 50-150 mm, a height of 150-250 mm, and a length of 200-850 mm.

[0012] Further, the beam mold, the column mold, and the floor slab mold are made of aluminum alloy materials.

[0013] The long strip-shaped foam module is arranged in the fixed concrete pouring mold cavity at the top of the beam and column of the prefabricated assembly house, without the need for additional design of aluminum formwork, thereby reducing design time and saving cost, avoiding manual excavation after pouring, and saving manpower and resources. When foam bricks are placed in the mold cavity, the foam bricks are simple to manufacture and convenient to construct, and after the size is determined, the factory can quickly produce a large number of foam bricks. During construction, the foam bricks only need to be arranged neatly in the mold cavity, which greatly reduces the construction time and speeds up the construction progress. When foamed glue is sprayed in the wire mesh groove, the construction is convenient, and the foamed glue is simple and convenient to remove in the later period, thereby saving cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a sectional structure schematic view of a foam forming structure of a reserved groove at the top of a beam and column according to an embodiment of the present application;

[0015] Fig. 2 is a structure schematic view of an embodiment of the present application;

[0016] Fig. 3 is a structure schematic view of another angle of the embodiment of Fig. 2. DETAILED DESCRIPTION

[0017] The present application will be described in detail below with reference to the accompanying drawings.

[0018] Embodiment one: as shown in FIG. 1-3, the beam-column top reserved slot foam forming structure of the prefabricated concrete assembled house of the present application, including the unit module prefabricated assembled house concrete pouring mold cavity surrounded by beam mold 11, column mold, floor slab mold, support rod, diagonal bracing rod, the steel reinforcement cage 21 and stirrup 22 are pre-placed in the concrete pouring mold cavity, the long strip-shaped foam module is fixed in the concrete pouring mold cavity of the top of the beam and column of the spliced unit module prefabricated assembled house, and the top of the long strip-shaped foam module is flush with the top of the concrete pouring mold cavity of the beam and column top.

[0019] In this embodiment, the long strip-shaped foam module includes an iron wire mesh slot 32 bent into an open right-angle long slot and a foaming glue 33 sprayed in the iron wire mesh slot 32, and the iron wire mesh slot 32 is hung on the steel reinforcement cage 21 by iron wire. The beam mold 11, column mold, and floor slab mold are made of aluminum alloy material.

[0020] In this embodiment, the splicing mode of the spliced unit module prefabricated assembled house includes horizontal splicing and vertical splicing, and the long strip-shaped foam module includes horizontal long strip-shaped foam module 41 and vertical long strip-shaped foam module 42.

[0021] As shown in FIG. 2, one side of the unit module prefabricated assembled house is not removed the iron wire mesh slot 32 and the long strip-shaped foam module 41, and the other side has removed the iron wire mesh slot 32 and the long strip-shaped foam module 41 and the long strip-shaped foam module 42.

[0022] Embodiment two: in the above embodiment one, the long strip-shaped foam module adopts a plurality of spliced foam bricks 31 cut out by a cutter and suitable for being placed in the mold cavity. The two sides and the bottom of the long strip-shaped foam module are surrounded by iron wire mesh, and the iron wire mesh is hung on the steel reinforcement cage 21 by iron wire.

[0023] In the above embodiment one or embodiment two, the long strip-shaped foam module can be made of a combination of foaming glue 33 and foam brick 31. For example, the slot on the beam adopts iron wire mesh slot 32 and foam brick 31, and the slot on the column can adopt iron wire mesh slot 32 and foaming glue 33 due to the longitudinal staggered steel bars.

[0024] In the above embodiment, the longitudinal section of the long strip-shaped foam module comprises a rectangular surface or an arc surface, the long strip-shaped foam module is provided with a void position at the intersection position of the column top steel bars, and the wire mesh groove 32 can be sheared to clamp the steel bars and then bent to form a reserved groove at the position. The width of the transverse long strip-shaped foam module 41 or the longitudinal long strip-shaped foam module 42 is 50-150 mm, the height is 150-250 mm, and the length is 200-850 mm. For example, the width of the transverse long strip-shaped foam module 41 or the longitudinal long strip-shaped foam module 42 can be 50 mm, 70 mm, 90 mm, 110 mm, 130 mm, or 150 mm, the height can be 150 mm, 170 mm, 190 mm, 210 mm, 230 mm, or 250 mm, and the length can be 200 mm, 400 mm, 500 mm, 600 mm, 700 mm, or 850 mm. The width, height, and length can be determined according to the needs of the site.

[0025] In the above embodiment, the long strip-shaped foam module is placed in the unit module prefabricated assembly house concrete pouring mold cavity, and after pouring and solidifying the concrete, the long strip-shaped foam module and the wire mesh groove 32 are excavated to form a reserved groove. When the unit module prefabricated assembly house is horizontally spliced, a plurality of steel bars are placed in the reserved grooves of the two unit module prefabricated assembly houses, and then the reserved grooves and the cast-in-place belt reserved on the top of the floor slab are cast-in-place concrete, so as to complete the rigid connection of the two horizontal modules.

[0026] The above embodiment is only one embodiment of the present application, but does not constitute a limitation. Any simple modification, change, replacement, combination, or simplification made without departing from the spirit and essence of the present application is equivalent to an equivalent replacement manner, and should be within the protection scope of the present application.

Claims

1. A foam molding structure for pre-reserved grooves on the top of beams and columns of a precast concrete assembly house, comprising a precast concrete pouring mold cavity for a unit module precast assembly house formed by beam mold (11), column mold, floor slab mold, support rod, and diagonal brace, wherein a steel cage (21) and stirrups (22) are pre-installed in the concrete pouring mold cavity, characterized in that: The long strip-shaped foam module is fixed in the concrete pouring mold cavity at the top of the beam and column of the spliced unit module prefabricated assembly house, and the top of the long strip-shaped foam module is level with the top of the concrete pouring mold cavity at the top of the beam and column.

2. The beam column top reserved slot foam forming structure of the prefabricated concrete assembly house according to claim 1, characterized in that: The long strip-shaped foam module comprises at least one spliced foam brick (31) suitable for being placed in the mold cavity and cut by a cutter.

3. The beam-column top reserved slot foam forming structure of the prefabricated concrete assembly house according to claim 2, characterized in that: The two sides and the bottom of the long strip-shaped foam module are surrounded by wire mesh, and the wire mesh is hung on the steel reinforcement cage (21).

4. The beam-column top reserved slot foam forming structure of the prefabricated concrete assembly house according to claim 1, characterized in that: The long strip-shaped foam module comprises wire mesh grooves (32) bent into open right-angle long grooves and foaming glue (33) sprayed in the wire mesh grooves (32), and the wire mesh grooves (32) are hung on the steel reinforcement cage (21).

5. The beam-column top reserved slot foam forming structure of the prefabricated concrete assembly house according to claim 1, characterized in that: The long strip-shaped foam module comprises a combination of the foaming glue (33) and the foam brick (31).

6. The beam-column top reserved slot foam forming structure of the prefabricated concrete assembly house according to any one of claims 1-5, characterized in that: The longitudinal section of the long strip-shaped foam module comprises a rectangular surface or an arc surface, and the long strip-shaped foam module is provided with an empty space at the top of the column.

7. The beam-column top reserved slot foam forming structure of the prefabricated concrete assembly house according to claim 1, characterized in that: The splicing mode of the spliced unit module prefabricated assembly house comprises horizontal splicing and vertical splicing, and the long strip-shaped foam module comprises horizontal long strip-shaped foam modules (41) and vertical long strip-shaped foam modules (42).

8. The beam-column top reserved slot foam forming structure of the prefabricated concrete assembly house according to claim 7, characterized in that: The width of the horizontal long strip-shaped foam module (41) or the vertical long strip-shaped foam module (42) is 50-150 mm, the height is 150-250 mm, and the length is 200-850 mm.

9. The beam-column top reserved slot foam forming structure of the concrete prefabricated assembly house according to claim 1, characterized in that: The beam mold (11), the column mold, and the floor slab mold are made of aluminum alloy material.

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