A rib-beam cast-in-place assembled sandwich panel

Abstract

The present invention relates to a rib-beam cast-in-place assembled sandwich panel 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 reinforcement (12) extends outward from the side and is anchored in the rib beam. The bottom plate is provided with a stiffening rib (13). The filling piece has a pouring hole (14) and a notch (15) that matches the stiffening rib. Two adjacent combined boxes are spliced ​​together with the rib beam, and the rib beam and the 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 rib-beam cast-in-place fabricated sandwich panel and a manufacturing method thereof, and belongs to the field of general building construction. (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 anchoring performance of prefabricated components is poor, 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 a rib-beam cast-in-place assembled sandwich panel.

[0006] On the basis of the prior art, in order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: to provide a rib-beam cast-in-place assembled sandwich panel, 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 upper iron, 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 rectangular, the bottom plate steel bars extend outward from the side and are anchored in the rib beam, 2 or more concrete stiffening ribs are arranged on at least one direction of the bottom plate, there is a pouring hole in the middle of the filling piece, and there are several notches at the bottom, the number and position of the notches are consistent with the stiffening ribs, two adjacent combination boxes are spliced ​​together with the rib beam, the rib beam steel bars are tied, the plate reinforcement is tied, and concrete is poured to form an assembled sandwich panel. The combined box is composed of a base plate and a lightweight filling piece. The combined box is a prefabricated component that can be assembled on the construction site. First, it is convenient for transportation; second, the various pipelines and lamp holders in the floor slab do not have to be limited to the rib beam part, but can be arranged at will without regional restrictions, which can improve the performance of the floor slab. The base plate is provided with stiffening ribs. The amount of concrete added is not much, but it can greatly improve the rigidity of the base plate. First, it can avoid damage during transportation, and second, it can improve the hanging capacity of the base plate during the use of the floor slab in the future. The injection hole in the middle of the filling piece can strengthen the connection between the sandwich panel and the base plate, and improve the ability of the floor slab to withstand large loads locally during use. The bottom notch of the filling piece is consistent with the stiffening rib. When there is a pipeline lamp holder in the filling piece area, the filling piece can be buckled on the base plate after installation, which is accurate and easy to operate, thereby improving the construction efficiency.

[0007] The invention is characterized in that the periphery of the bottom plate is tilted upward, and the bottom plate steel bars extend from the side and are obliquely anchored in the rib beam. The periphery of the bottom plate tilts upward, so that the bottom plate is embedded in the concrete rib beam and is not easy to fall off, ensuring the safety of the structure, while increasing the distribution range of the iron under the rib beam, which is beneficial to the stress of the structure.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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. 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. The lightweight material used as the main material of the filling piece is ordinary plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyurethane foam plastic, extruded board, foamed concrete or expanded perlite.

[0012] 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.

[0013] 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 reinforcement of the combination box adjacent to the visible beam or hidden beam extends outward from the side and is 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 combination boxes in the other direction are tightly 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.

[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 rib-beam cast-in-place assembled sandwich panel 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 provided with an upper iron, a lower iron and stirrups, the panel is provided 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 rectangular, the bottom plate reinforcement extends outward from the side and is anchored in the rib beam, 2 or more concrete stiffening ribs are provided on at least one direction of the bottom plate, a pouring hole is provided in the middle of the filling piece, and several notches are provided at the bottom, the number and position of the notches are consistent with the stiffening ribs, two adjacent combined boxes are spliced ​​together with the rib beam separated, the rib beam reinforcement is tied, the plate reinforcement is tied, 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 panels 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 poor anchoring performance of prefabricated components.

[0018] The rib-beam cast-in-place assembled sandwich panel of the present invention is convenient to produce, transport and install. The floor slab formed by the sandwich panel has a large span and a light weight, and the structural performance and integrity are good. 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 4 It 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 vertical section diagram when the filling piece is a hollow structure.

[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. bottom plate reinforcement, 13. stiffening ribs, 14. pouring holes, 15. notches, 16. warping, 17. hanger bars, 18. fasteners, 19. chamfers, 20. funnel shape, 21. hard reinforcement layer, 22. isolation layer, 23. prestressed tendons, 24. one-way slab, 25. two-way slab, 26. beamless floor, 27. frame column, 28. visible beam, 29. hidden beam. (V) Specific implementation methods

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

[0033] exist Figure 1-Figure 6 , Fig.10 In the embodiment shown, a rib-beam cast-in-place assembled sandwich panel (1) comprises a combination box (2), a rib beam (3), and a panel (4). 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 of the bottom plate and the filling piece is a rectangle, the bottom plate steel bars (12) extend outward from the side and are anchored in the rib beam, two or more concrete stiffening ribs (13) are arranged on the bottom plate in at least one direction, a pouring hole (14) is arranged in the middle of the filling piece, and several grooves (15) are arranged at the bottom, the number and position of the grooves are consistent with the stiffening ribs, two adjacent combination boxes are spliced ​​together with the rib beam, the rib beam steel bars are tied, the plate bars are tied, and concrete is poured to form an assembled sandwich panel.

[0034] exist Figure 3-Figure 6 , Fig.11 In the illustrated embodiment, the periphery of the bottom plate (10) is tilted upward (16), and the bottom plate reinforcement (12) extends from the side and is obliquely anchored in the rib beam (3).

[0035] exist Figure 2-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 (14) of the filling piece (11).

[0036] exist Figure 2-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.

[0037] 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 (14) of the filling member is funnel-shaped (20).

[0038] exist Figure 1-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 a built-in 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. The lightweight material used as the main material of the filling member is ordinary plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyurethane foam plastic, extruded board, foamed concrete or expanded perlite.

[0039] exist Figure 1 , Figure 2 , Figure 7-Figure 9 In the illustrated embodiment, prestressed tendons (23) are provided in the rib beam (3).

[0040] exist Figure 7-10 In the illustrated embodiment, the sandwich panel is applicable to 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); the frame columns of the beamless floor panels are provided with hidden beams (29); the bottom plate steel bars (12) of the combination box (2) adjacent to the visible beam or hidden beam extend outward from the side and are anchored in the visible beam or hidden beam.

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

[0042] exist Figure 1-Figure 6 , Fig.10In the embodiment shown, a method for manufacturing a rib-beam cast-in-place assembled sandwich panel is as follows: 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, and 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 member on its upper part. (11), the horizontal projection shape of the bottom plate and the filling piece is a rectangle, the bottom plate steel bars (12) extend outward from the side and are anchored in the rib beam, two or more concrete stiffening ribs (13) are arranged on the bottom plate in at least one direction, a pouring hole (14) is arranged in the middle of the filling piece, and a plurality of grooves (15) are arranged at the bottom, the number and position of the grooves are consistent with the stiffening ribs, two adjacent combination boxes are spliced ​​together with the rib beam, the rib beam steel bars are tied, the plate bars are tied, and concrete is poured to form an assembled sandwich panel.

Claims

1. A rib-beam cast-in-place assembled sandwich panel, the sandwich panel (1) comprising a combination box (2), a rib beam (3), and a panel (4), wherein 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, 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 bottom plate and the filling piece are in a rectangular horizontal projection shape, the bottom plate (10) is upwardly tilted (16) at its periphery, the bottom plate reinforcement (12) extends from the side and is obliquely anchored in the rib beam (3), at least two concrete stiffening ribs (13) are provided on at least one direction of the bottom plate, a pouring hole (14) is provided in the middle of the filling piece, and the bottom There are several notches (15), 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 pouring hole (14) of the filling piece (11). The hanging rod (17) is provided with a fastener (18), and the filling piece (11) is fastened to the upper part of the bottom plate (10) by the fastener. Two adjacent combined boxes are spliced ​​together with rib beams, the rib beam steel bars are tied, the plate bars are tied, and concrete is poured to form an assembled sandwich panel.

2. The rib-beam cast-in-place assembled sandwich panel 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 (14) of the filling piece is funnel-shaped (20).

3. The rib-beam cast-in-place assembled sandwich panel 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 a built-in mesh cloth, a hard plastic sheet, a density board, a ceramic or a 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. The light material used as the main material of the filling piece is ordinary plastic, polystyrene foam plastic, polyvinyl chloride foam plastic, polyurethane foam plastic, extruded board, foamed concrete or expanded perlite.

4. The rib-beam cast-in-place assembled sandwich panel according to claim 1, characterized in that The rib beam (3) is provided with prestressed tendons (23).

5. The rib-beam cast-in-place assembled sandwich panel 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 (12) of the combination box (2) adjacent to the visible beam or the hidden beam extend outward from the side and are anchored in the visible beam or the hidden beam.

6. The rib-beam cast-in-place assembled sandwich panel according to claim 1, characterized in that The filling piece (11) is a hollow structure.

7. The method for manufacturing a rib-beam cast-in-place assembled sandwich panel according to claim 1, characterized in that: The sandwich panel (1) comprises a combination box (2), a rib beam (3), and a panel (4). 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 the upper part thereof. The horizontal projection shape of the bottom plate and the filling piece is a rectangle. The periphery of the bottom plate (10) is upwardly tilted (16). The bottom plate reinforcement (12) extends from the side and is obliquely anchored in the rib beam (3). At least one More than two concrete stiffening ribs (13) are arranged in the direction, a pouring hole (14) is arranged in the middle of the filling piece, and several notches (15) are arranged at the bottom, and the number and position of the notches are kept consistent with the stiffening ribs. A hanging rod (17) is arranged 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 pouring hole (14) of the filling piece (11), and a fastener (18) is arranged on the hanging rod (17). The filling piece (11) is fastened to the upper part of the bottom plate (10) by the fastener, and two adjacent combined boxes are spliced ​​together with rib beams, and the rib beam steel bars are tied, the plate bars are tied, and concrete is poured to form an assembled sandwich panel.

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