An assembled sandwich panel filled with combined boxes

Abstract

The present invention relates to an assembled sandwich panel filled with a combined box and a manufacturing method thereof, and belongs to the field of general building construction. The sandwich panel (1) comprises a combined box (2), a rib beam (3), and a panel (4). The rib beam has an upper iron (6), a lower iron (7) and stirrups (8), and the panel has plate reinforcement (9). The combined box is composed of a bottom plate (10) and a filling piece (11). The bottom plate has a cantilever plate (12). The bottom plate reinforcement (13) extends upward at the cantilever plate position. The bottom plate is provided with a stiffening rib (14). The filling piece has a pouring hole (15) and a notch (16) that matches the stiffening rib. Adjacent combined boxes are spliced ​​together, the rib beams and plate reinforcement are tied, and concrete is poured to form an assembled sandwich panel. The combined box of the present invention is very convenient to produce, transport and install. The floor slab formed by the sandwich panel has a large span, light weight and good integrity. The present invention has good economy and applicability, and promotes the development of construction technology.

Description

(I) Technical field

[0001] The invention relates to a fabricated reinforced concrete hollow floor structure technology, in particular to a fabricated sandwich panel filled with a combined box and a manufacturing method thereof, belonging to the general building construction field. (II) Background technology

[0002] Prefabricated buildings have the characteristics of high degree of factory production, fast construction speed and low comprehensive cost. This type of structure is currently being vigorously promoted by the country. The two important indicators for evaluating the degree of structural concrete assembly rate are the amount of formwork used and the proportion of cast-in-place concrete.

[0003] For prefabricated floor slabs with a span of less than 5m, ordinary composite slabs can solve the problem; however, for floor slabs with a span of more than 5m, especially those with a span of more than 7m, if ordinary solid floor slabs are used, the structure will be heavy, have poor seismic performance, and have low comprehensive economic indicators. For floor slab structures, whether cast-in-place or composite structures, one of the main technical means to solve the large span problem is hollowing.

[0004] In the existing prefabricated concrete structure technology, there are also many hollow slab solutions, but these technical solutions have the following defects, mainly: 1. The prefabricated components are heavy and difficult to transport; 2. The prefabricated components are small in rigidity; 3. The applicable span is small; 4. The connection performance between adjacent prefabricated components is poor, which is not suitable for two-way slabs; 5. It is inconvenient to embed pipelines in the floor slab; 6. The amount of templates used is large, etc. In this case, developing a hollow slab technology that overcomes the above defects has become an urgent problem to be solved in the current prefabricated composite floor. (III) Summary of the invention

[0005] In the prior art, there are problems such as heavy prefabricated components, low rigidity, small applicable span, poor connection performance, inconvenient pre-buried pipelines, and large amount of templates. The purpose of the present invention is to provide an assembled sandwich panel filled with a combination box.

[0006] On the basis of the prior art, in order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an assembled sandwich panel filled with a combination box, the sandwich panel includes a combination box, a rib beam, and a panel, the rib beam is located between two adjacent combination boxes, the panel is located on the upper part of the combination box, the combination box is a prefabricated component, the rib beam and the panel are cast-in-place concrete, the rib beam is equipped with an upper iron, a lower iron and stirrups, the panel is equipped with plate reinforcement, the combination box is composed of a reinforced concrete bottom plate and a lightweight material filling piece on its upper part, the horizontal projection shape of the bottom plate and the filling piece is a rectangle, and at least one square in the horizontal plane The bottom plate size is larger than the corresponding size of the filling piece. At least one side of the bottom plate cantilevers outward relative to the filling piece to form a cantilever plate, and the width of the cantilever plate is ≥50mm. The bottom plate reinforcement extends upward at the cantilever plate position. There are 2 or more concrete stiffening ribs on the bottom plate corresponding to the position of the filling piece in at least one direction. There is a pouring hole in the middle of the filling piece and several notches at the bottom. The number and position of the notches are consistent with the stiffening ribs. The cantilevers in the bottom plates of two adjacent combined boxes are spliced ​​together, and the rib beams and plate reinforcements are tied to the upper part of the cantilever plates, and concrete is poured to form an assembled sandwich panel. The combined box is composed of a bottom plate and a lightweight material filling piece. The combined box is a prefabricated component that can be assembled on the construction site. First, it is convenient for transportation; secondly, various pipelines, lamp sockets, etc. in the floor slab do not have to be limited to the rib beam position, but can be arranged at will without regional restrictions, which can improve the performance of the floor slab. The bottom plate is extended outward to form a cantilever plate with a width of ≥50mm. The bottom plate steel bars extend upward at the cantilever plate to form cast-in-place concrete rib beams between adjacent combination boxes, and the bottom plate steel bars can be well anchored in the rib beams. The bottom plate is provided with stiffening ribs. The amount of added concrete is not much, but it can greatly improve the rigidity of the bottom plate. First, it can avoid damage during transportation, and second, it can improve the hanging capacity of the bottom plate during the use of the floor in the future. The pouring hole in the middle of the filler can strengthen the connection between the sandwich panel and the bottom plate, and improve the ability of the floor to withstand large loads locally during use. The bottom notch of the filler is consistent with the stiffening rib. When the filler area is provided with pipeline lamp holders, the filler is buckled on the bottom plate after installation, and the positioning is accurate and easy to operate, which improves the construction efficiency.

[0007] The invention is characterized in that a hanging rod is provided in the middle of the bottom plate of the combined box, one end of which is anchored in the bottom plate, and the other end is passed through the injection hole of the filling piece. After the hanging rod is provided, the following beneficial technical effects can be achieved: it is convenient to hoist and fix the combined box during the production, transportation and installation stages; the connection between the sandwich panel face plate and the upper and lower concrete of the bottom plate is enhanced, and the sandwich panel has good integrity and good hanging capacity; the reinforcement structure makes the mechanical properties of the connecting column between the face plate and the bottom plate better, ensuring the ability of the board surface to withstand large loads.

[0008] The invention is characterized in that the hanging rod is provided with a fastener, and the filling piece is fastened to the upper part of the bottom plate by the fastener. The fastener can ensure that the filling piece is not disturbed by various factors during construction and is accurately positioned on the bottom plate.

[0009] The invention is characterized in that the circumference of the upper surface of the filling piece is chamfered, and the upper part of the filling hole of the filling piece is funnel-shaped. The technical solution can improve the anti-punching bearing capacity of the panel and further improve the ability of the panel to withstand large loads.

[0010] The present invention is characterized in that a hard reinforcing layer is provided on the top of the filling piece, and the main material of the hard reinforcing layer is cement mortar with built-in mesh cloth, hard plastic sheet, density board, ceramic or metal sheet, and an isolation layer is provided around the filling piece and on the outside of the hard reinforcing layer, and the main material of the isolation layer is plastic tape, polyurethane paint, latex paint or elastic composite paint.

[0011] The invention is characterized in that the rib beam is provided with prestressed tendons. The prestressed tendons are provided to strengthen the connection between various horizontal components and to increase the usable span of the sandwich panel.

[0012] The present invention is characterized in that the sandwich panel is suitable for one-way panels, two-way panels and beamless floor slabs. The frame columns of the one-way panels and two-way panels are provided with visible beams, and the frame columns of the beamless floor slabs are provided with hidden beams. The bottom plate steel bars of the combined box adjacent to the visible beam or hidden beam extend from the side of the bottom plate in the form of horizontal beard bars and are anchored in the visible beam or hidden beam. In the one-way panel, rib beams are usually only arranged in one direction, and the filling pieces of the adjacent combined boxes in the other direction are closely attached together; in the two-way panel and beamless floor slab, rib beams are arranged in both directions; in the implementation process, the one-way panel can adopt the structure of the two-way panel, but it is still calculated according to the one-way force; the two-way panel can also adopt the structure of the one-way panel, but it can only be calculated according to the one-way force.

[0013] The invention is characterized in that the light material used as the main material of the filling piece is common plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyurethane foam plastic, extruded board, foamed concrete or expanded perlite.

[0014] The invention is characterized in that the filling piece is a hollow structure. The hollow structure is used to save materials and facilitate pipeline layout. When the filling piece conflicts with the pipeline position, the workload of slotting or drilling holes on the filling piece is reduced.

[0015] The method for manufacturing a prefabricated sandwich panel filled with a combined box of the present invention is characterized in that the sandwich panel comprises a combined box, a rib beam, and a panel, the rib beam is located between two adjacent combined boxes, the panel is located on the upper part of the combined box, the combined box is a prefabricated component, the rib beam and the panel are cast-in-place concrete, the rib beam is equipped with an upper iron, a lower iron and stirrups, the panel is equipped with plate reinforcement, the combined box is composed of a reinforced concrete bottom plate and a lightweight material filling piece on its upper part, the horizontal projection shape of the bottom plate and the filling piece is a rectangle, the size of the bottom plate in at least one direction in the horizontal plane is larger than the filling piece, and the bottom plate is larger than the filling piece. The corresponding dimensions of the filling parts, at least one side of the bottom plate cantilevers outward relative to the filling parts to form a cantilever plate and the width of the cantilever plate is ≥50mm, the bottom plate steel bars extend upward at the cantilever plate position, and 2 or more concrete stiffening ribs are arranged on the bottom plate corresponding to the position of the filling parts in at least one direction, there is a pouring hole in the middle of the filling part, and there are several grooves at the bottom. The number and position of the grooves are consistent with the stiffening ribs. The cantilevers in the bottom plates of two adjacent combined boxes are spliced ​​together, and the rib beams and plate reinforcements are tied on the upper part of the cantilever plates, and concrete is poured to form an assembled sandwich panel.

[0016] After adopting the above scheme, the present invention has the following beneficial effects compared with the prior art:

[0017] The combined box is easy to produce, transport and install, the template of the sandwich panel is small, the construction efficiency is high, various pipelines and lamp sockets in the panel can be arranged at will, the floor is easy to use, the hanging capacity of the bottom of the panel is good, the ability of the panel surface to bear large loads locally is strong, the integrity between various horizontal components between the floor is good, and the use span of the sandwich panel is large. Compared with the prior art, the present invention overcomes the defects of heavy weight of prefabricated components, difficult transportation, low rigidity, poor connection performance between adjacent prefabricated components, inconvenient pre-buried pipelines, and large template usage.

[0018] The present invention is a prefabricated sandwich panel filled with a combination box, the combination box is easy to produce, transport and install, the floor formed by the sandwich panel has a large span, light weight, good structural performance and good integrity. The present invention has good economy and applicability, and promotes the development of construction technology. (IV) Description of the drawings

[0019] The present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a cross-sectional view of the sandwich panel of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the connection part between two combination boxes in the sandwich panel of the present invention.

[0022] Figure 3 It is a schematic diagram of the vertical cross-sectional structure of the combined box in the sandwich panel of the present invention.

[0023] Figure 4It is a schematic diagram of assembling different components in the combination box.

[0024] Figure 5 It is a top view of the combined box in the sandwich panel of the present invention.

[0025] Figure 6 It is a top view of the bottom plate in the combination box.

[0026] Figure 7 It is a plan view when the sandwich panel of the present invention is a one-way panel.

[0027] Figure 8 It is a plan view when the sandwich panel of the present invention is a two-way panel.

[0028] Fig. 9 It is a plan view when the sandwich panel of the present invention is a beamless floor.

[0029] Fig.10 It is a schematic diagram of the structure of the connection between the combined box and the exposed beam.

[0030] Fig.11 It is a top view of the combination box close to the exposed beam or hidden beam.

[0031] In the figure: 1. sandwich panel, 2. combined box, 3. rib beam, 4. panel, 5. concrete, 6. upper iron, 7. lower iron, 8. stirrups, 9. plate reinforcement, 10. bottom plate, 11. filling parts, 12. cantilever plate, 13. bottom plate reinforcement, 14. stiffening ribs, 15. pouring holes, 16. notches, 17. hanger bars, 18. fasteners, 19. chamfers, 20. funnel shape, 21. hard reinforcement layer, 22. isolation layer, 23. prestressed tendons, 24. one-way plate, 25. two-way plate, 26. beamless floor, 27. frame column, 28. visible beam, 29. hidden beam, 30. beard reinforcement. (V) Specific implementation methods

[0032] The present invention is implemented in the following manner:

[0033] exist Figure 1-Figure 6 , Fig.10 , Fig.11In the illustrated embodiment, a prefabricated sandwich panel filled with a modular box is provided. The sandwich panel (1) comprises a modular box (2), a rib beam (3), and a panel (4). The rib beam is located between two adjacent modular boxes, and the panel is located on the upper part of the modular box. The modular box is a prefabricated component. The rib beam and the panel are cast-in-place concrete (5). The rib beam is provided with an upper iron (6), a lower iron (7) and stirrups (8), and the panel is provided with plate reinforcement (9). The modular box is composed of a reinforced concrete bottom plate (10) and a lightweight material filling piece (11) on the top thereof. The horizontal projection shape of the bottom plate and the filling piece is a rectangle. The bottom plate in at least one direction in the horizontal plane is The size is larger than the corresponding size of the filling piece, at least one side of the bottom plate is extended outward relative to the filling piece to form a cantilever plate (12) and the width of the cantilever plate is ≥50mm, the bottom plate steel bars (13) extend upward at the cantilever plate position, and two or more concrete stiffening ribs (14) are arranged on the bottom plate corresponding to the position of the filling piece in at least one direction, a pouring hole (15) is arranged in the middle of the filling piece, and several grooves (16) are arranged at the bottom, and the number and position of the grooves are consistent with the stiffening ribs, the cantilever plates in the bottom plates of two adjacent combined boxes are spliced ​​together, rib beams are tied to the upper part of the cantilever plates, plate reinforcements are tied, and concrete is poured to form an assembled sandwich panel.

[0034] exist Figure 3-Figure 6 In the illustrated embodiment, a hanging rod (17) is provided in the middle of the bottom plate (10) of the combined box (2), one end of the hanging rod is anchored in the bottom plate, and the other end passes through the injection hole (15) of the filling piece (11).

[0035] exist Figure 3-Figure 6 In the illustrated embodiment, the suspension rod (17) is provided with a fastener (18), and the filler (11) is fastened to the upper part of the bottom plate (10) by means of the fastener.

[0036] exist Figure 3-Figure 5 , Fig.11 In the illustrated embodiment, the circumference of the upper surface of the filling member (11) is chamfered (19), and the upper portion of the filling hole (15) of the filling member is funnel-shaped (20).

[0037] exist Figure 3-Figure 5 In the illustrated embodiment, a hard reinforcing layer (21) is provided on the top of the filling member (11), and the main material of the hard reinforcing layer is cement mortar with an internal mesh cloth, a hard plastic sheet, a density board, a ceramic or a metal sheet. An isolation layer (22) is provided around the filling member and on the outside of the hard reinforcing layer, and the main material of the isolation layer is plastic tape, polyurethane paint, latex paint or elastic composite paint.

[0038] exist Figure 1 , Figure 2 , Figure 7-Figure 9 In the illustrated embodiment, prestressed tendons (23) are provided in the rib beam (3).

[0039] exist Figure 7-Figure 11In the illustrated embodiment, the sandwich panel is suitable for one-way panels (24), two-way panels (25) and beamless floor panels (26). The frame columns (27) of the one-way panels and the two-way panels are provided with visible beams (28), and the frame columns of the beamless floor panels are provided with hidden beams (29). The combined box (2) adjacent to the visible beam or hidden beam has a bottom plate steel bar (13) extending from the side of the bottom plate (10) in the form of horizontal beard bars (30) and anchored in the visible beam or hidden beam.

[0040] exist Figure 1-Figure 5 In the illustrated embodiment, the light material used as the main material of the filling member (11) is ordinary plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyurethane foam plastic, extruded board, foamed concrete or expanded perlite.

[0041] exist Figure 1-Figure 5 In the illustrated embodiment, the filling member (11) is a hollow structure.

[0042] exist Figure 1-Figure 6 , Fig.10 , Fig.11 In the embodiment shown, a method for manufacturing an assembled sandwich panel filled with a combined box is as follows: the sandwich panel (1) comprises a combined box (2), a rib beam (3), and a panel (4), wherein the rib beam is located between two adjacent combined boxes, and the panel is located on the upper part of the combined box. The combined box is a prefabricated component, the rib beam and the panel are cast-in-place concrete (5), the rib beam is provided with an upper iron (6), a lower iron (7) and stirrups (8), and the panel is provided with plate reinforcement (9), the combined box is composed of a reinforced concrete bottom plate (10) and a lightweight material filling piece (11) on the upper part thereof, the horizontal projection shape of the bottom plate and the filling piece is a rectangle, and at least one direction in the horizontal plane is The size of the bottom plate is larger than the corresponding size of the filling piece, at least one side of the bottom plate is extended outward relative to the filling piece to form a cantilever plate (12) and the width of the cantilever plate is ≥50mm, the bottom plate reinforcement (13) extends upward at the cantilever plate position, two or more concrete stiffening ribs (14) are arranged on the bottom plate in at least one direction corresponding to the position of the filling piece, the filling piece has a pouring hole (15) in the middle and several grooves (16) at the bottom, the number and position of the grooves are consistent with the stiffening ribs, the cantilever plates in the bottom plates of two adjacent combined boxes are spliced ​​together, rib beams are tied to the upper part of the cantilever plates, plate reinforcements are tied, and concrete is poured to form an assembled sandwich panel.

Claims

1. An assembled sandwich panel filled with a modular box, the sandwich panel (1) comprising a modular box (2), a rib beam (3), and a panel (4), wherein the rib beam is located between two adjacent modular boxes, the panel is located on the upper part of the modular box, the modular box is a prefabricated component, and the rib beam and the panel are cast-in-place concrete (5), characterized in that The rib beam is provided with an upper iron (6), a lower iron (7) and stirrups (8), the panel is provided with plate reinforcement (9), the combined box is composed of a reinforced concrete bottom plate (10) and a lightweight material filling piece (11) on its upper portion, the horizontal projection shape of the bottom plate and the filling piece is rectangular, the bottom plate size in at least one direction in the horizontal plane is larger than the corresponding size of the filling piece, at least one side of the bottom plate is extended outward relative to the filling piece to form a cantilever plate (12) and the cantilever plate width is ≥50mm, the bottom plate reinforcement (13) extends upward at the cantilever plate position, and two or more concrete stiffening ribs ( 14), a filling hole (15) is provided in the middle of the filling piece, and a plurality of notches (16) are provided at the bottom, the number and position of the notches are consistent with the stiffening ribs, a hanging rod (17) is provided in the middle of the bottom plate (10) of the combined box (2), one end of the hanging rod is anchored in the bottom plate, and the other end passes through the filling hole (15) of the filling piece (11), and a fastener (18) is provided on the hanging rod (17), and the filling piece (11) is fastened to the upper part of the bottom plate (10) by the fastener, and the cantilever plates in the bottom plates of two adjacent combined boxes are spliced ​​together, and the rib beams and plate reinforcements are tied to the upper part of the cantilever plates, and concrete is poured to form an assembled sandwich panel.

2. The assembled sandwich panel filled with a combined box according to claim 1, characterized in that The circumference of the upper surface of the filling piece (11) is chamfered (19), and the upper part of the filling hole (15) of the filling piece is funnel-shaped (20).

3. The assembled sandwich panel filled with a combined box according to claim 1, characterized in that A hard reinforcing layer (21) is provided on the top of the filling piece (11), and the main material of the hard reinforcing layer is cement mortar with built-in mesh cloth, hard plastic sheet, density board, ceramic or metal sheet. An isolation layer (22) is provided around the filling piece and on the outside of the hard reinforcing layer, and the main material of the isolation layer is plastic tape, polyurethane paint, latex paint or elastic composite paint.

4. The assembled sandwich panel filled with a combined box according to claim 1, characterized in that The rib beam (3) is provided with prestressed tendons (23).

5. The assembled sandwich panel filled with a combined box according to claim 1, characterized in that The sandwich panel is suitable for one-way panels (24), two-way panels (25) and beamless floor panels (26). The frame columns (27) of the one-way panels and the two-way panels are provided with visible beams (28), and the frame columns of the beamless floor panels are provided with hidden beams (29). The bottom plate steel bars (13) of the combined box (2) adjacent to the visible beam or the hidden beam extend from the side of the bottom plate (10) in the form of horizontal beard bars (30) and are anchored in the visible beam or the hidden beam.

6. The assembled sandwich panel filled with a combined box according to claim 1, characterized in that The light material used as the main material of the filling piece (11) is common plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyurethane foam plastic, extruded board, foamed concrete or expanded perlite.

7. The assembled sandwich panel filled with a combined box according to claim 1, characterized in that The filling piece (11) is a hollow structure.

8. The method for manufacturing a prefabricated sandwich panel filled with a modular box according to claim 1, characterized in that: The sandwich panel (1) comprises a combination box (2), a rib beam (3), and a panel (4), wherein the rib beam is located between two adjacent combination boxes, and the panel is located on the upper part of the combination box. The combination box is a prefabricated component, the rib beam and the panel are cast-in-place concrete (5), the rib beam is provided with an upper iron (6), a lower iron (7) and stirrups (8), and the panel is provided with plate reinforcement (9). The combination box is composed of a reinforced concrete bottom plate (10) and a lightweight material filling piece (11) on its upper part, the horizontal projection shape of the bottom plate and the filling piece is a rectangle, and the size of the bottom plate in at least one direction in the horizontal plane is larger than the corresponding size of the filling piece. At least one side of the bottom plate is extended outward relative to the filling piece to form a cantilever plate (12) and the width of the cantilever plate is ≥50mm. The bottom plate reinforcement (13) extends upward at the cantilever plate position. Two or more concrete stiffening ribs (14) are provided on the bottom plate in at least one direction corresponding to the position of the filling piece. The filling piece has a pouring hole (15) in the middle and a plurality of grooves (16) at the bottom. The number and position of the grooves are consistent with the stiffening ribs. The cantilever plates in the bottom plates of two adjacent combined boxes are spliced ​​together. Rib beams are tied to the upper part of the cantilever plates, plate reinforcements are tied, and concrete is poured to form an assembled sandwich panel.

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