Assembly type floor post-cast strip abutted seam structure

Abstract

The utility model discloses a post-cast strip abutted seam structure of an assembly type floor slab, and relates to the technical field of assembly type floor slabs. The post-cast strip structure comprises a first assembly type floor slab, a second assembly type floor slab is arranged on one side of the first assembly type floor slab, and a post-cast strip is formed between the first assembly type floor slab and the second assembly type floor slab. The waterproof structures are arranged at the top and the bottom of the pouring material layer in the post-pouring belt, an all-dimensional and multi-layer waterproof system is formed, the ethylene propylene diene monomer waterproof coiled material has good water resistance, weather resistance and puncture resistance, invasion of external moisture can be effectively resisted, and the service life of the post-pouring belt is prolonged. The polymer cement waterproof coating can be tightly bonded with the pouring material layer to form a continuous and seamless waterproof film, the waterproof effect is further improved, the waterproof performance of the abutted seam of the post-pouring belt is greatly improved through the double waterproof design, various problems caused by leakage are effectively avoided, and the service life of a building is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of assembly type floor, especially, relate to a kind of assembly type floor post-cast strip joint structure. BACKGROUND

[0002] With the rapid development of construction industry and the continuous improvement of the requirements of building industrialization and green, assembly type building is applied increasingly widely in modern construction engineering by virtue of its many advantages such as high efficiency, energy saving and environmental protection, and assembly type floor, as an important component of assembly type building, is prefabricated in factory, then transported to construction site for splicing installation, which greatly shortens construction period, reduces on-site wet operation, improves construction efficiency and construction quality.

[0003] In the practical application process of assembly type floor, the post-cast strip joint treatment between floors becomes a key problem to be solved urgently, and the existing assembly type floor post-cast strip joint structure has certain deficiencies, the traditional waterproof measure is often too simple, it is difficult to form reliable and durable waterproof barrier, in actual use, rainwater or indoor water is easy to seep into the floor below through the joint, not only will affect the normal use function of building, but also may cause damage to the electrical equipment, decoration materials and other lower layers, increase the later maintenance cost, more seriously, long-term leakage may erode floor structure, reduce the durability of structure, threaten the overall safety of building.

[0004] Therefore, we provide an assembly type floor post-cast strip joint structure to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an assembly type floor post-cast strip joint structure, which solves the problem that the waterproof measure of the post-cast strip joint structure in the prior art is often too simple and difficult to form reliable and durable waterproof barrier by the cooperation of the connecting part and the concrete pouring layer.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme.

[0007] The utility model discloses a kind of assembled floor post-pouring band joint structure, including first assembled floor, the side of the first assembled floor is provided with second assembled floor, the first assembled floor and second assembled floor form post-pouring band between, the opposite side of the first assembled floor and second assembled floor is provided with connecting portion, reinforcing rib is provided in the inner chamber of the connecting portion, the side of the reinforcing rib is connected to the inner chamber of connecting portion and extends to the outside of connecting portion, concrete pouring layer is provided between the first assembled floor and second assembled floor, the concrete pouring layer includes first waterproof layer, the top of the first waterproof layer is fixedly connected with base layer, the top of the base layer is fixedly connected with pouring material layer, the top of the pouring material layer is provided with second waterproof layer, reinforcing steel mesh is provided in post-pouring band, reinforcing steel mesh is made of HRB400 grade steel bar with diameter of 10mm, the interval of transverse steel bar and longitudinal steel bar is 150mm, reinforcing steel mesh enhances the bearing capacity and crack resistance of post-pouring band, the setting of reinforcing steel mesh, like in post-pouring band area constructs a solid skeleton, greatly enhances the bearing capacity and crack resistance of post-pouring band, it can effectively transmit load to entire floor structure, so that structure can still maintain stable when bearing larger load, improve the safety and reliability of structure.

[0008] The utility model further sets up, the bottom of the opposite side of the first assembled floor and second assembled floor is provided with formwork, the bottom of the formwork is provided with positioning pin, formwork supports first assembled floor and second assembled floor, and guarantees the sealing property during pouring in post-pouring band.

[0009] The utility model further sets up, the first waterproof layer is laid with waterproof roll material, and the waterproof roll material adopts EPDM waterproof roll material, and the EPDM waterproof roll material adopted by the first waterproof layer has good water resistance, weather resistance and puncture resistance, can effectively resist the invasion of external moisture, and further improves the waterproof performance of post-pouring band joint.

[0010] The utility model further sets up, the base layer is composed of gravel cushion layer and cement mortar leveling layer, the gravel cushion layer is 100mm thick, is laid with gravel with particle size of 20-40mm, and compaction coefficient is not less than 0.95, and the cement mortar leveling layer is 30mm thick, and strength grade is M15, and the setting of base layer improves the bearing capacity of post-pouring band, disperses load, prevents crack due to uneven settlement, and further enhances the stability of structure.

[0011] The utility model further sets up, the layer of pouring material adopts compensation shrinkage concrete, the strength grade of compensation shrinkage concrete is higher than the concrete strength grade of assembly type floor by one, compensation shrinkage concrete produces micro expansion in the hardening process, compensation concrete shrinkage deformation, reduce the generation of crack, improve the integrity of post-pouring band.

[0012] The utility model further sets up, the second waterproof layer adopts waterproof paint and is made, and waterproof paint adopts polymer cement waterproof paint, and polymer cement waterproof paint can be closely bonded with the layer of pouring material, forms continuous, seamless waterproof membrane, further improves waterproof effect.

[0013] The utility model further sets up, the gap of connecting portion is filled with sealant strip, and sealant strip adopts silicone sealant material quality, and the gap of connecting portion structure is filled with sealant strip, and sealant strip adopts silicone sealant material quality, has good elasticity, weather resistance and sealing performance, can effectively prevent moisture penetration.

[0014] The utility model further sets up, the bottom of template is equipped with positioning hole, and the top of positioning pin extends to the inner chamber of first assembly type floor and second assembly type floor through positioning hole, and positioning pin can be positioned and installed quickly through positioning hole, guarantees the stability of template installation.

[0015] The utility model has the advantages of the following.

[0016] 1, the utility model discloses a waterproof structure is set up in the top and bottom of the layer of pouring material in post-pouring band, forms all -round, multilevel waterproof system, and the ternary ethylene propylene rubber waterproof roll material has good water resistance, weather resistance and puncture resistance, can effectively resist the invasion of external moisture, and the polymer cement waterproof paint can be closely bonded with the layer of pouring material, forms continuous, seamless waterproof membrane, further improves waterproof effect, and this double waterproof design greatly improves the waterproof performance of post-pouring band joint, effectively avoids various problems caused by leakage, prolongs the service life of building, and reduces the later maintenance cost.

[0017] 2, the utility model discloses the dual effect of connecting portion structure and sealant strip, strengthens waterproof capacity from the joint source, and connecting portion structure increases the path and difficulty of moisture penetration, and sealant strip is closely filled gap, effectively prevents moisture from leaking through the joint surface, greatly reduces the leakage risk, and simultaneously, through connecting portion structure design, increases the contact area and engagement force of assembly type floor joint, makes two floors better synergistically stress after splicing, improves the connection stability between floors, when bearing various loads, connecting portion structure can effectively disperse stress, reduces stress concentration phenomenon, reduces the possibility of crack generation. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments.

[0019] Figure 1 It is a perspective view of a kind of assembled floor post-pouring band joint structure.

[0020] Figure 2 It is the component structure diagram of a kind of concrete pouring layer in assembled floor post-pouring band joint structure.

[0021] Figure 3 It is the connection structure diagram of base layer and pouring material layer in assembled floor post-pouring band joint structure.

[0022] Figure 4 It is a bottom perspective view of a kind of assembled floor post-pouring band joint structure.

[0023] Figure 5 It is the connection structure cut drawing of connecting portion and reinforcing bar in assembled floor post-pouring band joint structure.

[0024] In the drawing: 1, first assembled floor; 2, second assembled floor; 3, connecting portion; 4, reinforcing bar; 5, concrete pouring layer; 501, first waterproof layer; 502, base layer; 503, pouring material layer; 504, second waterproof layer; 6, formwork; 7, positioning pin. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application, and the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0026] Embodiment one

[0027] Please refer to Figures 1-5 The present application is a kind of assembled floor post-pouring band joint structure, including first assembled floor 1, first assembled floor 1 One side is provided with second assembled floor 2, and post-pouring band is formed between first assembled floor 1 And second assembled floor 2, the opposite side of first assembled floor 1 And second assembled floor 2 It is provided with connecting portion 3, the inner cavity of connecting portion 3 It is provided with reinforcing bar 4, the side of reinforcing bar 4 It is through the inner cavity of connecting portion 3 And extend to the outside of connecting portion 3, first assembled floor 1 And second assembled floor 2 It is provided with concrete pouring layer 5 between, and concrete pouring layer 5 It includes first waterproof layer 501, the top of first waterproof layer 501 It is fixedly connected with base layer 502, the top of base layer 502 It is fixedly connected with pouring material layer 503, and the top of pouring material layer 503 It is provided with second waterproof layer 504.

[0028] Specifically, the post-pouring belt is provided with a reinforcing steel mesh, the reinforcing steel mesh is composed of HRB400 grade steel bars with a diameter of 10 mm, the spacing of the transverse steel bars and the longitudinal steel bars is 150 mm, the reinforcing steel mesh enhances the bearing capacity and crack resistance of the post-pouring belt, the reinforcing steel mesh is arranged like a solid skeleton in the post-pouring belt area, greatly enhances the bearing capacity and crack resistance of the post-pouring belt, can effectively transmit the load to the whole floor structure, makes the structure still stable when bearing a larger load, and improves the safety and reliability of the structure.

[0029] Embodiment two

[0030] Please refer to Figures 1-5 On the basis of embodiment one, the bottom of the first assembly type floor 1 and the second assembly type floor 2 on the opposite side is provided with a formwork 6, the bottom of the formwork 6 is provided with a positioning pin 7, the first waterproof layer 501 is laid with a waterproof roll material, the waterproof roll material is a ternary ethylene propylene rubber waterproof roll material, the base layer 502 is composed of a gravel cushion layer and a cement mortar leveling layer, the thickness of the gravel cushion layer is 100 mm, the gravel with a particle size of 20-40 mm is laid, the compaction coefficient is not less than 0.95, the thickness of the cement mortar leveling layer is 30 mm, the strength grade is M15, the pouring material layer 503 is a shrinkage-compensating concrete, the strength grade of the shrinkage-compensating concrete is one grade higher than that of the concrete of the assembly type floor, the second waterproof layer 504 is made of a waterproof coating, the waterproof coating is a polymer cement waterproof coating, the gap of the connecting part 3 is filled with a sealant strip, the sealant strip is made of a silicone sealant material, the bottom of the formwork 6 is provided with a positioning hole, and the top of the positioning pin 7 extends to the inner cavity of the first assembly type floor 1 and the second assembly type floor 2 through the positioning hole.

[0031] Specifically, the formwork 6 supports the first assembly type floor 1 and the second assembly type floor 2, ensures the sealing performance in the pouring process of the post-pouring belt, the ternary ethylene propylene rubber waterproof roll material of the first waterproof layer 501 has good water resistance, weather resistance and puncture resistance, can effectively resist the invasion of external water, and further improves the waterproof performance of the post-pouring belt joint, the setting of the base layer 502 improves the bearing capacity of the post-pouring belt, disperses the load, prevents cracks caused by uneven settlement, and further enhances the stability of the structure, the shrinkage-compensating concrete produces micro-expansion in the hardening process, compensates for the shrinkage deformation of the concrete, reduces the generation of cracks, improves the integrity of the post-pouring belt, the polymer cement waterproof coating can be tightly bonded with the pouring material layer 503, forms a continuous and seamless waterproof film, and further improves the waterproof effect, the gap of the connecting part 3 structure is filled with a sealant strip, the sealant strip is made of a silicone sealant material, has good elasticity, weather resistance and sealing performance, can effectively prevent water penetration, and the positioning pin 7 can be quickly positioned and installed through the positioning hole, ensuring the stability of the formwork 6 installation.

[0032] The working principle of the utility model is: through setting waterproof structure on the top and bottom of the in-situ pouring material layer 503, a comprehensive and multi-level waterproof system is formed, the EPDM waterproof roll material has good water resistance, weather resistance and puncture resistance, can effectively resist the invasion of external moisture, the polymer cement waterproof coating can be closely bonded with the in-situ pouring material layer 503, forming a continuous and seamless waterproof film, through the double action of the connecting part 3 structure and the sealing rubber strip, the waterproof capacity is enhanced from the splicing source, the connecting part 3 structure increases the path and difficulty of moisture penetration, the sealing rubber strip tightly fills the gap, effectively prevents moisture from leaking through the splicing surface, greatly reduces the risk of leakage.

[0033] The above disclosed preferred embodiments of the utility model are only used to help describe the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.

Claims

1. A fabricated floor post-cast strip joint structure, comprising a first fabricated floor (1), characterized in that: One side of the first fabricated floor (1) is provided with a second fabricated floor (2), a post-pouring belt is formed between the first fabricated floor (1) and the second fabricated floor (2), the opposite side of the first fabricated floor (1) and the second fabricated floor (2) is provided with a connecting part (3), a reinforcing rib (4) is arranged in the inner cavity of the connecting part (3), one side of the reinforcing rib (4) penetrates the inner cavity of the connecting part (3) and extends to the outside of the connecting part (3), and a concrete pouring layer (5) is arranged between the first fabricated floor (1) and the second fabricated floor (2). The concrete pouring layer (5) comprises a first waterproof layer (501), the top of the first waterproof layer (501) is fixedly connected with a base layer (502), the top of the base layer (502) is fixedly connected with a pouring material layer (503), and the top of the pouring material layer (503) is provided with a second waterproof layer (504).

2. The post-cast strip joint structure of the fabricated floor slab according to claim 1, characterized in that: The bottom of the opposite side of the first fabricated floor (1) and the second fabricated floor (2) is provided with a formwork (6), and the bottom of the formwork (6) is provided with a positioning pin (7).

3. The post-cast strip joint structure of a fabricated floor according to claim 1, characterized in that: The first waterproof layer (501) is made of waterproof roll material, and the waterproof roll material is made of EPDM waterproof roll material.

4. The post-cast strip joint structure of a fabricated floor according to claim 1, characterized in that: The base layer (502) is composed of a gravel cushion layer and a cement mortar leveling layer, the thickness of the gravel cushion layer is 100mm, the gravel with a particle size of 20-40mm is laid, the compaction coefficient is not less than 0.95, the thickness of the cement mortar leveling layer is 30mm, and the strength grade is M15.

5. The post-cast strip joint structure of the fabricated floor slab according to claim 1, characterized in that: The pouring material layer (503) is made of shrinkage-compensating concrete, and the strength grade of the shrinkage-compensating concrete is one grade higher than that of the concrete of the fabricated floor.

6. The post-cast strip joint structure of the fabricated floor slab according to claim 1, characterized in that: The second waterproof layer (504) is made of waterproof paint, and the waterproof paint is made of polymer cement waterproof paint.

7. The post-cast strip joint structure of the fabricated floor slab according to claim 1, characterized in that: The gap of the connecting part (3) is filled with a sealing rubber strip, and the sealing rubber strip is made of silicone sealing glue material.

8. The post-cast strip joint structure of claim 2, wherein: The bottom of the formwork (6) is provided with a positioning hole, and the top of the positioning pin (7) extends to the inner cavity of the first fabricated floor (1) and the second fabricated floor (2) through the positioning hole.

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