Short rib plate with special pipeline area and floor system with short rib plate

Abstract

The short rib plate with the special pipeline area comprises a bottom plate and a plurality of short ribs arranged on the bottom plate in parallel, 250-600 mm is reserved in an area H from the two ends of each short rib to the edge of the bottom plate to form the special pipeline area, the short ribs and the bottom plate are integrally formed in a factory in a pouring mode, and the special pipeline area is formed by the short ribs and the bottom plate. The height h between the top ends of the short ribs and the surface of the bottom plate is 40-100mm; the short ribs are concrete short ribs or reinforced concrete short ribs or profile steel short ribs. Cracking of the bottom plate can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building, specifically relates to a short rib plate with special pipeline area. BACKGROUND

[0002] The Chinese patent with the publication number CN101204831A discloses a ribbed prefabricated component plate manufacturing method, prefabricated ribs with prefabricated holes on both sides are first prepared, and then a cast-in-situ reinforced concrete bottom plate is placed on the prefabricated rib on the ground or the formwork of the prefabricated site; or the prefabricated rib is placed on the ground or the formwork of the prefabricated site, and then a cast-in-situ reinforced concrete bottom plate is cast, the cast-in-situ bottom plate is integrated with the prefabricated rib to form a ribbed prefabricated component plate, and then the formwork is removed.

[0003] The prefabricated rib manufacturing method is complex, increases the manufacturing time and construction difficulty, and is low in construction efficiency, and since the rib is prefabricated in advance relative to the bottom plate, when the prefabricated rib and the cast-in-situ concrete bottom plate are connected into a whole in the subsequent process, since the setting time of the prefabricated rib and the bottom plate concrete is different, cracking and pulling off are prone to occur at the new and old concrete joint surface, and the bottom plate and the prefabricated rib cannot bear stress together, thereby causing the bottom plate to crack and deform. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defects of the prior art, and provides a short rib plate with special pipeline area, which can effectively prevent the prefabricated plate from cracking.

[0005] The utility model adopts the following technical scheme: a short rib plate with special pipeline area, comprising a bottom plate and a plurality of short ribs arranged in parallel on the bottom plate, a region H from both ends of the short ribs to the edge of the bottom plate is reserved to be 250-600mm to form a special pipeline area, the short ribs and the bottom plate are integrally cast in a factory, and the height h of the top end of the short rib from the surface of the bottom plate is 40-100mm; the short rib is a concrete short rib, a reinforced concrete short rib or a profile steel short rib.

[0006] Preferably, the bottom plate is a reinforced concrete bottom plate, and the thickness of the bottom plate is 30-70mm.

[0007] Preferably, the surface of the bottom plate is further cast with a reinforced concrete protective layer, and the thickness of the reinforced concrete protective layer is 70-150mm.

[0008] Preferably, the top end of the short rib is at the same height to serve as a spacer for the steel bars in the upper protective layer,

[0009] Since the surface of the bottom plate is further cast with a reinforced concrete protective layer, the short ribs are at the same height, and can serve as spacers for the steel bars to support the upper protective layer when the cast-in-situ protective layer is cast.

[0010] Preferably, the water, electricity and fire pipelines and the wire box in the special pipeline area are integrated on the floor or installed on site; the short rib area is formed between the two special pipeline areas, and the short ribs are arranged in the short rib area and are provided with or not provided with pipeline holes.

[0011] Preferably, the floor thickness of the special pipeline area is at least 5mm thinner than that of the short rib area, so that the cast-in-place concrete protective layer of the special pipeline area is thicker than that of the short rib area, which is more beneficial to the protection of the multilayer pipelines and prevents the cracking of the protective layer concrete.

[0012] Preferably, when the short rib is a concrete short rib or a reinforced concrete short rib, the concrete short rib and the floor are integrally poured, and no gap is left between the two, and the rib width W is 50-300mm.

[0013] Preferably, when the short rib is integrally poured with the floor in the factory, the short rib is poured by using a pouring mold, and the pouring mold is a steel mesh or an iron sheet or a color steel plate or a thin-walled steel pipe which is opened in at least one direction.

[0014] Preferably, when the short rib is a profile steel short rib, the profile steel can be an H-shaped steel, a T-shaped steel, a C-shaped steel, an I-shaped steel, a channel steel, a cross-shaped steel, or a box-shaped steel, a square steel pipe or a round steel pipe, or a combination of one or more thereof.

[0015] Preferably, when the short rib and the floor are poured, a mold is used for pouring, and the mold is a pouring formwork with grooves.

[0016] Preferably, when the short rib is a profile steel short rib, the profile steel short rib is partially embedded in the concrete of the floor, and a cavity between the profile steel short rib and the floor forms a steel rib pipeline channel. The cavity between the short rib and the floor forms a steel rib pipeline channel, which can facilitate the arrangement of some small pipelines.

[0017] The utility model discloses further disclose a floor, it includes above-mentioned short rib floor, and support the beam or wall or column of floor component.

[0018] From the above description of the utility model, compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. When the short rib is made of concrete or reinforced concrete, it is cast integrally with the base slab in the factory. The short rib is cast using a casting mold, which is made of steel mesh. The steel mesh is set or fixed to the reinforcing bars within the base slab, with an upward opening. When pouring the concrete for the short rib, the concrete will not collapse due to the lateral resistance of the steel mesh, which helps to ensure the elevation control and flatness of the top of the short rib. Simultaneously, the steel mesh can interlock and integrate with the concrete, reinforcing it, increasing its durability and protection, and preventing impact-induced chipping.

[0020] 2. When the short rib is a steel section, the exposed part of the steel section forms the steel section. Since the strength of steel is much greater than that of concrete, the steel section short rib plate has greater strength, better stress performance, and is easier to control deflection and deformation. It is also simple and efficient to manufacture. The bottom of the steel section short rib is directly embedded in the concrete of the base plate without any additional connectors, saving steel. The cavity between the steel section short rib and the base plate forms a steel rib pipeline channel, which can facilitate the passage of some small pipelines. The existence of the steel cavity also facilitates the later replacement and maintenance of these small pipelines. The steel cavity also provides stronger protection for pipelines than concrete.

[0021] 3. The use of short ribs in underground pipe corridors and building floor slabs allows dedicated pipe channels or trenches to be left at both ends of the precast slabs. This enables better planning of pipe routes and prevents pipes from crossing or diagonally penetrating, which could affect the cracking of the upper protective concrete layer.

[0022] 4. The height of the bottom plate in the dedicated pipeline area should be at least 5mm lower than that in the short rib area. This will make the thickness of the cast-in-place reinforced concrete protective layer in the dedicated pipeline area thicker than that in the short rib area, which is more conducive to the protection of multi-layer pipelines and effectively prevents cracking of the protective concrete layer.

[0023] 5. The short ribs can also serve as spacers. The upper ends of the short ribs are on the same horizontal plane, which has a leveling function and high flatness. During transportation and stacking, it prevents the upper layer of precast slabs from directly pressing on the lower layer of precast slabs, and can effectively prevent the precast slabs from cracking and deforming. At the same time, when the bottom slab surface is covered with cast-in-place reinforced concrete protective layer, the short ribs can also serve as spacers for the reinforcing bars in the protective layer. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a diagram showing the usage state of this utility model;

[0026] Figure 3 This is a longitudinal cross-sectional view of the short rib;

[0027] Figure 4 This is a schematic diagram of the casting mold of this utility model.Figure 1

[0028] Figure 5 Pouring module of the utility model Figure 2

[0029] Figure 6 Pouring module of the utility model Figure 3

[0030] Figure 7 Pouring module of the utility model Figure 4

[0031] Figure 8 Figure 7 Pouring state diagram of the utility model

[0032] Figure 9 Short rib of the utility model Figure 1

[0033] Short rib of the utility model Figure 10 Figure 2

[0034] Short rib of the utility model Figure 11 Figure 3 Short rib of the utility model

[0035] Figure 12 Short rib of the utility model Figure 4

[0036] Short rib of the utility model Figure 13 Figure 5 DETAILED DESCRIPTION

[0037] The utility model will be further described below through specific embodiments.

[0038] The short rib plate (Support Free Board, SFB for short) in the patent.

[0039] Referring to Figure 1 and Figure 2 ​​​​​​​​​The utility model discloses a short rib plate with special pipeline area, including bottom plate 1 and the parallel setting of several short ribs 2 on bottom plate 1, the area H of short rib 2 both ends to the edge of bottom plate 1 reserves 250-600mm and forms special pipeline area 3, in actual use, the width of special pipeline area 3 can be 250mm, 300mm, 400m, 500mm or 600mm, and the user can select the specific width of special pipeline area 3 reservation according to the actual situation of the scene, the short rib 2 and bottom plate 1 are integrally cast in the factory, and the height h of short rib 2 top end distance bottom plate 1 surface is 40-100mm, in actual user, the height of short rib 2 can be 40mm, 50mm, 60mm, 65mm etc., and the patent does not make specific limitation, the short rib 2 is concrete short rib or reinforced concrete short rib or section steel short rib.

[0040] The bottom plate 1 is a reinforced concrete bottom plate, and the thickness of the bottom plate is 30-70mm. In actual use, the thickness of the bottom plate can be selected as 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 70mm, etc. The surface of the bottom plate is also cast with a reinforced concrete protective layer 6, and the thickness of the reinforced concrete protective layer is 70-150mm.

[0041] In the patent, the bottom plate 1 is a prefabricated bottom plate, that is, the bottom plate and the rib are cast in the factory. The reinforced concrete protective layer 6 is a cast-in-place layer. The bottom plate 1 and the reinforced concrete protective layer 6 are combined to form a composite slab.

[0042] The top ends of the short ribs 2 are at the same height to serve as the spacer bars for the steel bars in the upper protective layer. Since the surface of the bottom plate is also cast with a reinforced concrete protective layer, the short ribs are at the same height, which can serve as the spacer bars for the steel bars to support the upper protective layer when the cast-in-place protective layer is cast.

[0043] The water, electricity and fire-fighting pipelines and the wire box in the special pipeline area 3 can be integrated on the bottom plate 1 or installed in place at the construction site. The short rib area 4 is formed between the two special pipeline areas 3. The short ribs 2 are arranged in the short rib area 4, and pipeline holes can be provided or not provided on the short ribs 2.

[0044] In the patent, since the special pipeline area 3 is provided, the pipeline holes are preferably not provided on the short ribs 2. In the traditional wiring mode, pipeline holes are provided on the ribs, and the water, electricity and fire-fighting pipelines and the wire box pass through the pipeline holes of the ribs. This form of hole opening on the ribs causes high cost, unstable performance of the ribs, difficulty in opening holes, poor quality of the concrete casting at the hole edges and other problems. In actual construction, in order to facilitate the construction and casting of the ribs with pipeline holes, the ribs and the bottom plate are often separately cast, and the ribs and the bottom plate form a separation mode, which easily leads to separation and cracking of the ribs and the bottom plate, is not conducive to the stable performance of the composite slab, and is particularly prone to cracking of the protective layer.

[0045] The special pipeline area of the patent changes the traditional pipeline crossing from the rib, so that the pipeline can be better planned, and the pipeline can be prevented from crossing and crossing, and the possibility of cracking of the upper protective layer of concrete is reduced.

[0046] The bottom plate thickness of the special pipeline area 3 is at least 5mm thinner than the bottom plate thickness of the short rib area 4, so that the cast-in-place concrete protective layer thickness of the special pipeline area is thicker than that of the short rib area, which is more beneficial to the protection of the multi-layer pipeline, and prevents the cracking of the protective layer of concrete.

[0047] As shown in Figure 3 When the short rib 2 is a concrete short rib or a reinforced concrete short rib, the concrete short rib 2 and the bottom plate 1 are completely poured as a whole, and there is no gap between them, and the rib width W is 50-300mm, and the short rib is shaped by a formwork. Example one

[0048] As shown in Figures 4-7 When the short rib 2 is integrally poured with the bottom plate 1 in the factory, the short rib is poured by pouring module 5, and the pouring module 5 is at least one direction opening steel mesh or iron sheet or color steel plate or thin-walled steel pipe. Preferably, as shown in Figure 8 When pouring, the short rib 2 and the bottom plate 1 are poured by using a mold 8, and the mold 8 is a pouring formwork with grooves. When pouring, the pouring module 5 is only placed in the groove of the mold 8, and then pouring can be carried out. The advantage of this form of pouring is that the pouring module 5 will not be displaced due to the force of the concrete, and the pouring surface of the bottom plate 1 is easy to find the height, and the short rib after pouring has higher density and better quality under the extrusion of the self-weight of the concrete, and does not have the common defects of concrete pouring quality such as honeycomb, pockmark and hole. At the same time, the height of the rib is uniform, which can not only be used as a spacer for the steel bar in the concrete protective layer, but also the finished bottom plate has better surface flatness when stacking, and prevents the bottom plates from colliding and damaging each other during transportation.

[0049] Specifically, Figure 4 the pouring module is partially opened at the upper end, Figure 5 the pouring module is fully opened at the upper end, Figure 6 two oppositely arranged C-shaped pouring modules, Figure 7 the convex pouring module is opened at the lower end, and when the pouring module Figure 7 structure is used, the entire short rib plate can be poured upside down. In Figures 4-7 the pouring module, the material is a steel mesh or an iron sheet or a color steel plate or a thin-walled steel pipe.

[0050] When the short ribs are made of concrete or reinforced concrete, they are cast integrally with the base slab in the factory. The short ribs are cast using casting molds made of steel mesh, which is set or fixed to the reinforcing bars within the base slab. The steel mesh opens upwards. When pouring the concrete for the short ribs, the concrete is prevented from collapsing due to the lateral resistance of the steel mesh, which helps to control the elevation of the top of the short rib and ensure its flatness. At the same time, the steel mesh can interlock and integrate with the concrete, reinforcing it, increasing its durability and protection, and preventing impact chipping. Example 2

[0051] like Figures 9-13 As shown, when the short rib 2 is a structural steel short rib, the structural steel can be an open-section H-beam, T-beam, C-beam, I-beam, channel steel, cross-shaped steel, or a closed-section box-shaped steel, square steel pipe, round steel pipe, or one or more combinations thereof.

[0052] When the short ribs are made of steel profiles, the strength of steel far exceeds that of concrete, resulting in stronger steel short rib plates with better load-bearing capacity, easier control of deflection and deformation, and simpler and more efficient fabrication. Specifically:

[0053] like Figure 9 As shown, short rib 2 is made of channel steel with flanges. The flanges of the channel steel are first welded or fixed to the reinforcing steel frame of the base plate 1, and then cast integrally. The exposed part of the channel steel forms the short steel rib; as shown... Figure 13 As shown, Figure 9 The short rib 2 is a modified structure; other simple modifications based on this patent are considered similar to the short rib structure of this patent; such as... Figure 10 As shown, this is a C-shaped steel section with a partial opening at the bottom. The open ends of the C-shaped steel are welded or fixed to the reinforcing steel frame, and then the entire section is cast. The exposed portion of the C-shaped steel forms a short rib of the steel profile; as shown... Figure 11 As shown, this is an H-beam. The two flanges of the H-beam are of unequal length; the shorter flange is welded or fixed to the reinforcing steel frame, and then the entire structure is cast. The exposed portion of the channel steel forms the short ribs of the structural steel. Figure 12 As shown, the C-shaped steel has an opening on the side. The open end of the C-shaped steel is welded or fixed to the reinforcing steel frame, and then the whole structure is cast. The exposed part of the channel steel forms the short rib of the steel section.

[0054] When the short rib 2 is a steel section short rib, the steel section short rib is directly embedded in the concrete of the base plate 1 without any additional connectors. The cavity between the steel section short rib and the base plate 1 forms a steel rib pipeline channel 7. The cavity between the short rib and the base plate forms a steel rib pipeline channel, which can facilitate the passage of some small pipelines. The existence of the steel cavity also facilitates the later replacement and maintenance of these small pipelines.

[0055] The above embodiments are only several preferred embodiments of the present application, and are not exhaustive.

[0056] Meanwhile, the present application also discloses a floor system, which comprises the short ribbed slab and a beam, a wall or a column supporting the bottom plate 1.

[0057] The above is only a preferred embodiment of the present application, and therefore cannot limit the scope of the present application, i.e. equivalent changes and modifications made according to the patent application scope and content of the present application should still be within the scope of the present application.

Claims

1. A short-ribbed plate with a dedicated pipeline area, comprising a bottom plate (1) and a number of short ribs (2) arranged in parallel on the bottom plate (1), characterized in that: The area H from the both ends of the short rib (2) to the edge of the bottom plate (1) is reserved 250-600mm to form a special pipeline area (3), the short rib (2) and the bottom plate (1) are integrally cast in the factory, and the height h of the top end of the short rib (2) from the surface of the bottom plate (1) is 40-100mm; the short rib (2) is a concrete short rib or a reinforced concrete short rib or a profile steel short rib.

2. The short-rib web with dedicated pipeline region of claim 1, wherein: The bottom plate (1) is a reinforced concrete bottom plate, and the thickness of the bottom plate (1) is 30-70mm.

3. The short-rib web with dedicated pipeline region of claim 2, wherein: The surface of the bottom plate (1) is further cast with a reinforced concrete protective layer (6), and the thickness of the reinforced concrete protective layer (6) is 70-150mm.

4. The short-rib web with dedicated pipeline region of claim 1, wherein: The top ends of the short ribs (2) are at the same height to serve as the spacer of the steel bars in the upper protective layer.

5. The short-rib web with dedicated pipeline region of claim 1, wherein: The water, electricity and fire-fighting pipelines and the wire box in the special pipeline area (3) can be integrated on the bottom plate (1) or installed on site at the construction site; the short rib area (4) is formed between the two special pipeline areas (3), the short ribs (2) are arranged in the short rib area (4), and pipeline holes are provided or not provided on the short ribs (2).

6. The short-rib web with dedicated pipeline region of claim 5, wherein, The thickness of the bottom plate of the special pipeline area (3) is at least 5mm thinner than the thickness of the bottom plate of the short rib area (4).

7. The short-rib web with dedicated pipeline region of claim 1, wherein: When the short rib (2) is a concrete short rib or a reinforced concrete short rib, the short rib (2) and the bottom plate (1) are completely integrally cast, and no gap is left between them.

8. The short-rib web with dedicated pipeline region of claim 7, wherein: When the short rib (2) is integrally cast with the bottom plate (1) in the factory, the short rib is cast by using a casting mold (5), and the casting mold (5) is a steel mesh or a sheet iron or a color steel plate or a thin-walled steel pipe which is open in at least one direction.

9. The short-rib web with dedicated pipeline region of claim 8, wherein, When the short rib (2) and the bottom plate (1) are cast, a mold (8) is used for casting, and the mold (8) is a casting mold plate with grooves.

10. The short-rib web with dedicated pipeline region of claim 1, wherein: When the short rib (2) is a profile steel short rib, the profile steel can be an H-shaped steel, a T-shaped steel, a C-shaped steel, an I-shaped steel, a channel steel, a cross-shaped steel, or a box-shaped steel, a square steel pipe, a round steel pipe, or a combination of one or more thereof.

11. The short-rib web with dedicated pipeline region of claim 10, wherein, When the short rib (2) is a profile steel short rib, the profile steel short rib is partially embedded in the concrete of the bottom plate (1), and the cavity between the profile steel short rib and the bottom plate (1) forms a steel rib pipeline channel (7).

12. A floor assembly, comprising: The short rib plate comprises the short rib plate according to any one of claims 1-11, and a beam or a wall or a column supporting the bottom plate (1).

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