One-way dense rib cavity floor system module for steel structure and construction method of one-way dense rib cavity floor system module

Abstract

The invention discloses a one-way dense rib cavity floor system module for a steel structure and a construction method of the one-way dense rib cavity floor system module, and relates to the technical field of fabricated buildings. The structure specifically comprises a plurality of profile steel dense rib beams and a plurality of cavity prefabricated slabs arranged among the profile steel dense rib beams. The same bottom plate piece is arranged at the bottoms of the profile steel ribbed beams and the cavity prefabricated slabs, a supporting seat plate is fixed below the middle of the bottom plate piece, and the supporting seat plate is supported by one or more supporting rod pieces; a panel is arranged on the top of the profile steel ribbed beam and the top of the cavity prefabricated slab, and a concrete fireproof layer is poured on the panel. The profile steel sealing plates are arranged and fixed to the profile steel dense rib beams and the cavity prefabricated slabs, and the fixing positions of the profile steel sealing plates and the profile steel dense rib beams are sealed through the foaming materials, so that concrete can be prevented from entering cavities of the cavity prefabricated slabs from openings in the two ends of the cavity prefabricated slabs when the mixed clean soil fireproof layer is poured.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and particularly relates to a unidirectional ribbed cavity floor slab module for steel structures and a construction method thereof. Background Art

[0002] The unidirectional ribbed cavity floor slab module for steel structures is an efficient and lightweight floor slab structure system, which combines the strength advantages of steel structures and the lightweight characteristics of cavity modules, and is widely used in large-span and large-space buildings.

[0003] After retrieval, a patent with the Chinese patent publication number CN114164978B discloses a unidirectional ribbed cavity floor slab module for steel structures and a construction method thereof, which is prefabricated and integrally formed by at least 2 parallel profiled steel ribbed beams, at least 1 bottom plate, at least 1 cavity component and at least 1 integrated pipeline component. The profiled steel of the profiled steel ribbed beam is connected to the steel bars of the bottom plate and is cast into one body through concrete. The integrated pipeline component is fixed on the upper surface of the bottom plate, and the cavity component is located between 2 parallel profiled steel ribbed beams and is fixed on the upper surface of the bottom plate.

[0004] The above patent has the following deficiencies: The openings on both sides of the cavity of the cavity component are in an open state. In this way, when pouring the concrete fireproof layer on the top subsequently, there is a risk that the concrete will leak into the cavity. Once the concrete leaks into the cavity, it will not only block structures such as wire troughs, but also cause a significant increase in the amount of concrete used and the structural self-weight.

[0005] Therefore, the present invention proposes a unidirectional ribbed cavity floor slab module for steel structures and a construction method thereof. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a unidirectional ribbed cavity floor slab module for steel structures and a construction method thereof.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A unidirectional ribbed cavity floor slab module for steel structures includes a plurality of profiled steel ribbed beams and a plurality of cavity precast slabs arranged between the plurality of profiled steel ribbed beams;

[0009] A bottom plate member is provided at the bottom of the profiled steel ribbed beam and the cavity precast slab. A support seat plate is fixed below the middle of the bottom plate member, and the support seat plate is supported by one or more support rods;

[0010] A panel is provided on the top of the profiled steel ribbed beam and the cavity precast slab, and a concrete fireproof layer is poured above the panel. A profiled steel sealing plate is connected to the opening side of the cavity precast slab and the profiled steel ribbed beam is arranged at the opening of the cavity precast slab. The profiled steel sealing plate and the four walls at the opening of the cavity precast slab are sealed with foaming material.

[0011] Preferably: The support member is composed of a plurality of support sections, and adjacent support sections and the support section and the support seat plate are connected by a flange group.

[0012] Further: The support member is composed of a plurality of support sections. Outer thread rings and inner thread cylinders that cooperate with each other are respectively arranged at both ends of the support section, and an outer thread ring or an inner thread cylinder is arranged at the bottom of the support seat plate.

[0013] On the basis of the foregoing solution: A fixing ring is fixed on the outer wall of the lowermost support section, and multiple groups of reinforcing support members are arranged on the side wall of the fixing ring.

[0014] A better solution in the foregoing solution is: The reinforcing support member includes a screw rod and a nut sleeve threadedly connected to the outer wall of the screw rod. A tip contacting the ground is arranged at the end of the nut sleeve, and a rotating block is welded to the end of the screw rod. The rotating block is rotatably connected to the side wall of the fixing ring through a rotating shaft.

[0015] As a further solution of the present invention: A locknut is threadedly connected to the outer wall of the screw rod.

[0016] At the same time, a toothed block is slidably connected to the top of the fixing ring through a guide rod. A spring is buckled at the bottom of the toothed block, and the other end of the spring is buckled to the outer wall of the top of the fixing ring. Teeth meshing with the toothed block are arranged on the outer wall of the rotating block.

[0017] As a preferred one of the present invention: The lowermost support section adopts a telescopic design, and the support section thereof adopts a tubular structure with a fixed length.

[0018] At the same time, the lowermost support section includes a cylinder body and a piston slidably connected to the inner wall of the cylinder body. A piston rod is fixed to the outer wall of the piston. A rubber sleeve for preventing foreign objects from entering is arranged on the inner side of the top of the cylinder body. A limiting table for limiting the maximum contraction position of the piston is arranged on the inner wall of the bottom of the cylinder body. An oil nozzle communicating with the inner cavity of the cylinder body is arranged on the side wall of the cylinder body below the maximum height of the limiting table; the multiple oil nozzles are respectively connected to the same multi-pass pipe through a quick connector. The other end of the multi-pass pipe is connected to a two-way pump. The other side of the two-way pump is connected to an oil tank. An adjustable pressure relief valve is arranged on the outer wall of the multi-pass pipe. The flow discharge port of the adjustable pressure relief valve is connected to the oil tank.

[0019] A construction method for a one-way ribbed cavity floor slab module for a steel structure includes the following steps:

[0020] S1: First, use the support rods to support the bottom plate, and then fix the profiled steel ribbed beams and cavity precast slabs to the bottom plate respectively.

[0021] S2: Then, after welding the profiled steel sealing plate to the cavity precast slab, use foaming material to fill the gap between the cavity precast slab and the profiled steel sealing plate.

[0022] S3: Subsequently, lay the panel above the profiled steel ribbed beams and cavity precast slabs, and then pour the concrete fireproof layer.

[0023] S4: After the pouring is completed, remove the support rods.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. In the present invention, by setting the profiled steel sealing plate, which is fixed to both the profiled steel ribbed beam and the cavity precast slab, and the fixing part between the profiled steel sealing plate and the profiled steel ribbed beam is sealed with foaming material, it can prevent concrete from entering the cavity of the cavity precast slab from the openings at both ends of the cavity precast slab when pouring the concrete fireproof layer.

[0026] 2. In the present invention, by setting the support rods as composed of multiple support sections, it can flexibly adjust the number of support sections used according to the support height. At the same time, the unitized composition form is more convenient for the processing, transportation, storage, etc. of a single support section. The same support sections are fixedly connected by using the cooperation of a flange group or an external thread ring and an internal thread cylinder, which not only ensures stability but also increases the disassembly and assembly efficiency.

[0027] 3. In the present invention, by setting multiple groups of reinforcement support members, it can increase the support area of the bottom support section, thereby ensuring the stability of the support. At the same time, the multiple groups of reinforcement support members can be rotated and telescoped, and the length of each reinforcement support member can be adjusted at different support points even in the case of supporting on uneven ground to ensure reliable support. In addition, by setting tooth blocks, teeth, etc., it can lock the angle of the entire reinforcement support member and increase the stability of the support.

[0028] 4. In the present invention, by setting the bottom support section in the form of a combination of a cylinder body, a piston rod, and a piston, it can achieve hydraulic telescoping, so as to compensate for the slight change in the support height. At the same time, it can also use hydraulic pressure to adjust the support force. In addition, by adjusting the hydraulic pipeline, the support force of each support rod can be made completely consistent, increasing the uniformity of the support. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the overall structure of a unidirectional ribbed cavity floor slab module for steel structures proposed by the present invention;

[0030] Figure 2Schematic diagram of the support member structure of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention;

[0031] Figure 3 Schematic diagram of the connection structure of the support members of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention Figure 1 ;

[0032] Figure 4 Schematic diagram of the connection structure of the support members of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention Figure 2 ;

[0033] Figure 5 Schematic diagram of the reinforcement support member structure of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention;

[0034] Figure 6 Schematic diagram of the structure of the bottom support section of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention;

[0035] Figure 7 Schematic diagram of the hydraulic part structure of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention;

[0036] Figure 8 Schematic diagram of the pipeline structure of a one-way ribbed cavity floor slab module for steel structures proposed by the present invention.

[0037] In the figure: 1, profiled steel ribbed beam; 2, cavity precast slab; 3, panel; 4, profiled steel sealing plate; 5, support seat plate; 6, support member; 7, bottom plate member; 8, support section; 9, flange group; 10, external thread ring; 11, internal thread cylinder; 12, reinforcement support member; 13, fixing ring; 14, guide rod; 15, spring; 16, tooth block; 17, tooth; 18, rotating block; 19, rotating shaft; 20, screw; 21, locknut; 22, screw sleeve; 23, tip; 24, cylinder block; 25, piston rod; 26, rubber sleeve; 27, oil nozzle; 28, limiting platform; 29, piston; 30, quick connector; 31, multi-way pipe; 32, two-way pump; 33, adjustable pressure relief valve. Detailed implementation method

[0038] The technical solution of the present invention will be further described in detail below in combination with the specific implementation method.

[0039] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0040] Embodiment 1:

[0041] A unidirectional ribbed cavity floor slab module for steel structures, as Figures 1 - 8 shown, includes a plurality of profiled steel ribbed beams 1 and a plurality of cavity precast slabs 2 arranged between the plurality of profiled steel ribbed beams 1. A bottom plate member 7 is provided at the bottom of the profiled steel ribbed beam 1 and the cavity precast slab 2. A support seat plate 5 is fixed below the middle of the bottom plate member 7, and the support seat plate 5 is supported by one or more support rod members 6.

[0042] A panel 3 is provided at the top of the profiled steel ribbed beam 1 and the cavity precast slab 2, and a concrete fire protection layer is poured above the panel 3. A profiled steel sealing plate 4 is connected to the opening side of the cavity precast slab 2 and the profiled steel ribbed beam 1 where the cavity precast slab 2 is open. The profiled steel sealing plate 4 and the four walls at the opening of the cavity precast slab 2 are sealed with foaming material.

[0043] In this device, by setting the profiled steel sealing plate 4, which is fixed to both the profiled steel ribbed beam 1 and the cavity precast slab 2, and the fixing part of the profiled steel sealing plate 4 and the profiled steel ribbed beam 1 is sealed with foaming material, it can prevent concrete from entering the cavity of the cavity precast slab 2 from the two ends of the cavity precast slab 2 when pouring the concrete fire protection layer.

[0044] When this embodiment is in use:

[0045] S1: First, use the support rod member 6 to support the bottom plate member 7, and then fix the profiled steel ribbed beam 1 and the cavity precast slab 2 to the bottom plate member 7 respectively;

[0046] S2: Then, after welding the profiled steel sealing plate 4 to the cavity precast slab 2, use foaming material to fill the gap between the cavity precast slab 2 and the profiled steel sealing plate 4;

[0047] S3: Subsequently, lay the panel 3 above the profiled steel ribbed beam 1 and the cavity precast slab 2, and then pour the concrete fire protection layer;

[0048] S4: After the pouring is completed, remove the support rod member 6.

[0049] Embodiment 2:

[0050] A unidirectional ribbed cavity floor slab module for steel structures, as Figure 2 、 3 shown, to solve the problem of flexible support; the following improvements are made on the basis of Embodiment 1 in this embodiment: The support rod member 6 is composed of a plurality of support sections 8, and adjacent support sections 8 and the support section 8 and the support seat plate 5 are all connected by a flange group 9.

[0051] Embodiment 3:

[0052] A unidirectional ribbed cavity floor slab module for steel structures, as Figure 2 、4 As shown, to solve the problem of flexible support; based on Embodiment 1, the following improvements are made in this embodiment: the support rod member 6 is composed of a plurality of support sections 8, the two ends of the support section 8 are respectively provided with a mutually matching external thread ring 10 and internal thread cylinder 11, and the bottom of the support seat plate 5 is provided with an external thread ring 10 or internal thread cylinder 11.

[0053] In this device, by setting the support rod member 6 to be composed of a plurality of support sections 8, it can flexibly adjust the number of support sections 8 used according to the support height. At the same time, the unitized composition form is more convenient for the processing, transportation, storage, etc. of a single support section 8. The same support section 8 adopts the cooperation of the flange group 9 or the external thread ring 10 and the internal thread cylinder 11 to achieve fixed connection, which not only ensures stability but also increases the disassembly and assembly efficiency.

[0054] Embodiment 4:

[0055] A unidirectional ribbed cavity floor slab module for steel structures, as Figure 2 、 4 shown, to solve the problem of support stability; based on Embodiment 1, the following improvements are made in this embodiment: a fixing ring 13 is fixed on the outer wall of the lowermost support section 8, and a plurality of reinforcing support members 12 are arranged on the side wall of the fixing ring 13.

[0056] The reinforcing support member 12 includes a screw rod 20 and a nut sleeve 22 threadedly connected to the outer wall of the screw rod 20. The end of the nut sleeve 22 is provided with a tip 23 contacting the ground. A rotating block 18 is welded to the end of the screw rod 20, and the rotating block 18 is rotatably connected to the side wall of the fixing ring 13 through a rotating shaft 19.

[0057] A locknut 21 is threadedly connected to the outer wall of the screw rod 20.

[0058] A tooth block 16 is slidably connected to the top of the fixing ring 13 through a guide rod 14. A spring 15 is buckled at the bottom of the tooth block 16, and the other end of the spring 15 is buckled to the outer wall of the top of the fixing ring 13. Tooth teeth 17 engaged with the tooth block 16 are arranged on the outer wall of the rotating block 18.

[0059] When this embodiment is in use, after the support is completed, the tooth block 16 is lifted, and then the screw rod 20 and the nut sleeve 22 are rotated to make them open outward. Then the nut sleeve 22 is rotated again so that the nut sleeve 22 extends outward until it contacts the ground and has a certain pressure. Then the tooth block 16 is released, and the tooth block 16 is engaged with the tooth teeth 17 under the pulling force of the spring 15 to achieve the rotational locking of the rotating block 18. At the same time, the locknut 21 is rotated so that the locknut 21 fits tightly with the nut sleeve 22.

[0060] In this device, by providing multiple groups of reinforcement supports 12, it can increase the support area of the bottom support section 8, thereby ensuring the stability of the support. At the same time, the multiple groups of reinforcement supports 12 can rotate and expand and contract, and can also adjust the length of each reinforcement support 12 to adjust the support points even on uneven ground to ensure reliable support. In addition, by providing tooth blocks 16, teeth 17, etc., it can lock the angle of the entire reinforcement support 12 and increase the stability of the support.

[0061] Embodiment 5:

[0062] A unidirectional ribbed cavity floor slab module for steel structures, as Figure 2 , 4 shown, to solve the problem of support stability; the following improvements are made in this embodiment on the basis of Embodiment 1: the support section 8 at the bottommost part adopts a telescopic design, and the support section 8 connected to it adopts a tubular structure with a fixed length.

[0063] The support section 8 at the bottommost part includes a cylinder block 24 and a piston 29 slidably connected to the inner wall of the cylinder block 24. A piston rod 25 is fixed to the outer wall of the piston 29. A rubber sleeve 26 for preventing foreign objects from entering is arranged on the inner side of the top of the cylinder block 24. A limiting platform 28 for limiting the maximum contraction position of the piston 29 is arranged on the inner wall of the bottom of the cylinder block 24, and an oil nozzle 27 communicating with the inner cavity of the cylinder block 24 is arranged on the side wall of the cylinder block 24 lower than the maximum height of the limiting platform 28.

[0064] Each of the multiple oil nozzles 27 is connected to the same multi-pass pipe 31 through a quick connector 30. The other end of the multi-pass pipe 31 is connected to a two-way pump 32. The other side of the two-way pump 32 is connected to an oil tank, and an adjustable pressure relief valve 33 is arranged on the outer wall of the multi-pass pipe 31. The flow discharge port of the adjustable pressure relief valve 33 is connected to the oil tank.

[0065] In this device, by setting the bottom support section 8 in the combined form of a cylinder block 24, a piston rod 25, and a piston 29, hydraulic telescoping can be realized, so as to compensate for the slight change in the support height. At the same time, the hydraulic pressure can also be used to adjust the support force. In addition, by adjusting the hydraulic pipeline, the support force of each support rod 6 can be made exactly the same, increasing the uniformity of the support.

[0066] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A one-way dense-rib cavity floor module for steel structure, comprising a plurality of steel dense-rib beams (1) and a plurality of cavity prefabricated panels (2) arranged between the plurality of steel dense-rib beams (1), characterized in that: The steel multi-rib beam (1) and the bottom of the cavity prefabricated plate (2) are provided with a same bottom plate (7), a support base plate (5) is fixed below the middle of the bottom plate (7), and the support base plate (5) is supported by one or more support rods (6); A panel (3) is arranged on the top of the steel multi-ribbed beam (1) and the cavity precast panel (2), and a concrete fireproof layer is cast above the panel (3); a steel sealing plate (4) is arranged on the opening side of the cavity precast panel (2) and the steel multi-ribbed beam (1) located at the opening of the cavity precast panel (2); and the steel sealing plate (4) and the four walls at the opening of the cavity precast panel (2) are sealed with foam material.

2. The one-way dense-rib cavity floor module for steel structure according to claim 1, characterized in that: The support rod (6) is composed of a plurality of support sections (8), and adjacent support sections (8) and the support sections (8) and the support seat plate (5) are connected via a flange group (9).

3. The one-way dense-rib cavity floor module for steel structure according to claim 1, characterized in that: The support rod (6) is composed of a plurality of support sections (8), and both ends of the support section (8) are respectively provided with external threaded rings (10) and internal threaded tubes (11) that cooperate with each other, and the bottom of the support seat plate (5) is provided with an external threaded ring (10) or an internal threaded tube (11).

4. A one-way dense-rib cavity floor module for steel structure according to claim 2 or 3, characterized in that: A fixing ring (13) is fixed to the outer wall of the support section (8) located at the bottom, and a plurality of groups of reinforcing support members (12) are arranged on the side wall of the fixing ring (13).

5. The one-way dense-rib cavity floor module for steel structure according to claim 4, characterized in that: The reinforcing support member (12) comprises a screw rod (20) and a screw sleeve (22) connected to the outer wall of the screw rod (20) by means of a thread, the end of the screw sleeve (22) is provided with a tip (23) contacting the ground, the end of the screw rod (20) is welded with a rotating block (18), and the rotating block (18) is rotatably connected to the side wall of the fixing ring (13) via a rotating shaft (19).

6. The one-way dense-rib cavity floor module for steel structure according to claim 5, characterized in that: The outer wall of the screw rod (20) is connected with a locking nut (21) via threads.

7. The one-way dense-rib cavity floor module for steel structure according to claim 5, characterized in that: The top of the fixed ring (13) is slidably connected to a tooth block (16) via a guide rod (14); the bottom of the tooth block (16) is buckled with a spring (15); the other end of the spring (15) is buckled to the top outer wall of the fixed ring (13); and the outer wall of the rotating block (18) is provided with teeth (17) that engage with the tooth block (16).

8. The one-way dense-rib cavity floor module for steel structure according to claim 4, characterized in that: The support section (8) located at the bottom adopts a telescopic design, and the support section (8) thereof adopts a tubular structure of fixed length.

9. The one-way dense-rib cavity floor module for steel structure according to claim 8, characterized in that: The support section (8) located at the bottom comprises a cylinder (24) and a piston (29) slidably connected to the inner wall of the cylinder (24); a piston rod (25) is fixed to the outer wall of the piston (29); a rubber sleeve (26) is arranged on the inner side of the top of the cylinder (24) to prevent foreign matter from entering; a limit platform (28) is arranged on the inner wall of the bottom of the cylinder (24) to limit the maximum contraction position of the piston (29); and the cylinder (24) is lower than the limit platform (28). The side wall with the maximum height is provided with an oil nozzle (27) which is in communication with the inner cavity of the cylinder body (24); the plurality of oil nozzles (27) are respectively connected to the same multi-way pipe (31) through a quick connector (30); the other end of the multi-way pipe (31) is connected to a two-way pump (32); the other side of the two-way pump (32) is connected to an oil tank; and the outer wall of the multi-way pipe (31) is provided with an adjustable pressure relief valve (33); the discharge port of the adjustable pressure relief valve (33) is connected to the oil tank.

10. A construction method for the one-way dense-rib cavity floor module for steel structure according to claim 1, characterized in that: The following steps are involved: S1: First, the bottom plate (7) is supported by the support rod (6), and then the steel multi-rib beam (1) and the cavity prefabricated plate (2) are respectively fixed to the bottom plate (7); S2: After welding the steel sealing plate (4) and the cavity prefabricated plate (2), a foaming material is used to fill the gap between the cavity prefabricated plate (2) and the steel sealing plate (4); S3: Then, the panel (3) is laid on the steel ribbed beam (1) and the cavity precast panel (2), and then the concrete fireproof layer is poured; S4: After pouring is completed, the supporting rod (6) is removed.

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