Fabricated disassembly-free heat preservation bottom die reinforcement cage floor support plate

Abstract

The invention relates to the field of assembly type floor support plates, and particularly discloses an assembly type disassembly-free heat preservation bottom die reinforcement cage floor support plate which comprises a heat preservation bottom die, a plurality of connecting parts used for being connected with prefabricated reinforcement cages are arranged at the top of the heat preservation bottom die, and a heat preservation core layer is arranged in the heat preservation bottom die. A first cavity with adjustable cavity volume and a second cavity communicated with the first cavity are formed in the heat preservation core layer, the first cavity is located above the second cavity, the volume of the second cavity is larger than that of the first cavity, the first cavity and the second cavity form a sound absorption resonance structure, and the sound absorption resonance structure is arrayed in the heat preservation core layer. The bottom formwork integrates the functions of heat preservation, sound insulation, flame retardance and the formwork, the construction procedure of secondary heat preservation and sound insulation and the formwork dismantling procedure are reduced, and the building efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of assembled floor decking, and in particular to an assembled non-disassembly-required thermal insulation bottom formwork steel cage floor decking. Background Art

[0002] The construction technologies of prefabricated floor slabs include concrete composite slab technology, steel truss steel decking bottom formwork floor slab technology, steel truss calcium silicate board non-removal formwork floor slab, and hollow floor slab technology.

[0003] At present, due to many reasons, prefabricated floor slabs need to be supported by formwork at the bottom of the slab, and the formwork must be removed after pouring concrete. The construction efficiency is low, and the thermal insulation and sound insulation performance between floors is poor. It is also necessary to set up an additional insulation structure for secondary insulation, which is time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide an assembled, non-disassembly insulated bottom formwork steel cage floor decking plate, wherein the bottom formwork integrates the functions of insulation, sound insulation, flame retardancy and formwork, reduces the construction process of secondary insulation and sound insulation and the process of formwork removal, and improves construction efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following solutions:

[0006] A prefabricated, non-disassembly insulated bottom formwork steel cage floor decking plate comprises a thermal insulation bottom formwork, a plurality of connection parts for connecting a prefabricated steel cage are arranged on the top of the thermal insulation bottom formwork, an insulation core layer is arranged in the thermal insulation bottom formwork, a first cavity with adjustable cavity volume and a second cavity connected to the first cavity are arranged in the thermal insulation core layer, the first cavity is located above the second cavity, the volume of the second cavity is greater than that of the first cavity, the first cavity and the second cavity constitute a sound-absorbing resonance structure, and the sound-absorbing resonance structure is arrayed in the thermal insulation core layer.

[0007] In the prior art, after the floor decking is transported to the site, a bottom formwork for placing the floor decking is set on its bottom surface, and then a large number of support rods are set under the bottom formwork. Then, steel bars are tied to the floor decking, and finally, concrete is poured. After the concrete solidifies, secondary insulation, sound insulation, flame retardancy and other construction processes are carried out on the floor decking. After all are completed, the formwork system is removed.

[0008] In this solution, prefabricated means that the floor decking can be prefabricated in the factory and then quickly assembled at the construction site, which improves construction efficiency and reduces on-site wet work. Dismantling-free means that the insulation bottom formwork does not need to be dismantled after installation, which simplifies the construction process and saves material costs. The thermal insulation bottom formwork serves as the base layer of the floor decking, providing good thermal insulation performance and helping to maintain stable indoor temperature. The steel truss enhances the bearing capacity of the floor decking so that it can meet the requirements of structural safety. The connecting part is used to connect the prefabricated steel cage, ensuring a firm connection between the floor decking and the steel cage, and improving the stability and seismic resistance of the overall structure. The thermal insulation core layer is the main part of the thermal insulation bottom formwork, and a cavity structure is designed inside it. The first cavity is located above the second cavity, and the volume of the second cavity is larger than that of the first cavity. This design not only increases the total volume of the cavity and improves the thermal insulation performance, but also forms a sound-absorbing resonance structure. The sound-absorbing resonance structure is composed of the first cavity and the second cavity, and they are connected. When sound waves are transmitted, a resonance effect will be generated inside the cavity, thereby consuming sound energy and achieving the effect of sound absorption and noise reduction. This sound-absorbing resonance structure is distributed in an array in the thermal insulation core layer, ensuring that the floor decking has good acoustic performance while providing thermal insulation performance.

[0009] In summary, the design of this assembled, non-dismantled insulated bottom formwork steel cage floor decking fully considers multiple aspects such as thermal insulation, structural safety, construction efficiency and acoustic performance. The bottom formwork integrates insulation, sound insulation, flame retardancy and formwork functions, reduces secondary insulation, sound insulation and other construction processes and formwork removal processes, improves construction efficiency, and is a new type of building material with broad application prospects.

[0010] Optionally, an adjusting portion for adjusting the volume of the first cavity is provided in the first cavity.

[0011] Optionally, the adjusting part is an airbag adapted to the shape of the first cavity, the airbag is connected to a pre-buried pipe in the thermal insulation bottom mold, and the pre-buried pipe is connected to an external inflation device.

[0012] Optionally, a composite damping layer is provided on the inner wall of the second cavity, and the composite damping layer is butyl rubber.

[0013] Optionally, a sound-absorbing filler is provided in the second cavity, and the sound-absorbing filler is glass wool.

[0014] Optionally, a resonance sensor for real-time monitoring of noise frequency is embedded in the side wall of the first cavity. The resonance sensor is connected to an external controller, and the controller adjusts the start and stop of the inflatable device in real time according to data fed back by the resonance sensor.

[0015] Optionally, the thermal insulation core layer is made of non-combustible polystyrene cement, and a keel frame is embedded in the thermal insulation core layer.

[0016] Optionally, the top and bottom surfaces of the thermal insulation core layer are provided with a cement mortar layer with an alkali-resistant mesh cloth.

[0017] Optionally, a 3-5 mm thick water-based damping sound insulation material is sprayed on the surface of the cement mortar layer on the top surface of the thermal insulation core layer.

[0018] Optionally, a U-shaped groove is provided on the side wall of the connecting part, and the lower steel bars of the prefabricated steel cage are placed in the groove. The connecting part is connected to the insulation bottom mold by screws. The screws pass through the connecting part from top to bottom and are connected to the insulation bottom mold, and the lower steel bars of the prefabricated steel cage are confined in the groove.

[0019] The present invention has the beneficial effects:

[0020] 1. In the present invention, the bottom formwork integrates the functions of heat preservation, sound insulation, flame retardancy and formwork, reduces the construction process of secondary heat preservation and sound insulation and the process of formwork removal, improves the construction efficiency, and the steel cage is tied and formed in advance, which reduces the construction time.

[0021] 2. After the floor decking is installed in place, concrete is poured on site. The bottom formwork and the concrete are cast as a whole at one time without any cavity, avoiding the quality and safety problems of the traditional insulation system such as falling off, cracking, hollowing, and water seepage.

[0022] 3. Compared with composite floors and floors with other insulation methods, the floor thickness is reduced and the net height of the floor is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the sound absorbing resonance structure in the thermal insulation core layer;

[0025] Figure 3 This is a schematic diagram of the structure after the second cavity is filled with sound-absorbing filler;

[0026] Figure 4 is a three-dimensional structural diagram of the connecting part;

[0027] Figure 5 It is a schematic diagram of the connection between the connecting part and the insulation bottom mold.

[0028] Figure numerals: 1-insulation bottom mold, 2-steel mesh, 3-connecting part, 4-steel truss, 5-cement mortar layer, 6-water-based damping sound insulation material, 7-airbag, 8-first cavity, 9-sound-absorbing filler, 10-composite damping layer, 11-lower steel bar, 12-insulation core layer, 13-second cavity, 14-slot, 15-hole, 16-screw. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] A prefabricated, non-disassembly insulated bottom formwork steel cage floor decking comprises an insulated bottom formwork 1, a plurality of connection parts 3 for connecting a prefabricated steel cage are arranged on the top of the insulated bottom formwork 1, an insulated core layer 12 is arranged inside the insulated bottom formwork 1, a first cavity 8 with adjustable cavity volume and a second cavity 13 connected to the first cavity 8 are arranged inside the insulated core layer 12, the first cavity 8 is located above the second cavity 13, the volume of the second cavity 13 is greater than that of the first cavity 8, the first cavity 8 and the second cavity 13 constitute a sound-absorbing resonance structure, and the sound-absorbing resonance structure is arrayed in the insulated core layer 12.

[0033] In this embodiment, Figure 1As shown, the assembled type means that the floor deck can be prefabricated in the factory and then quickly assembled on the construction site, which improves the construction efficiency and reduces on-site wet work. The disassembly-free type means that the thermal insulation bottom formwork 1 does not need to be dismantled after installation, which simplifies the construction process and saves material costs. The thermal insulation bottom formwork 1 serves as the base layer of the floor deck, providing good thermal insulation performance and helping to maintain a stable indoor temperature. The prefabricated steel cage includes a steel truss 4 and a steel mesh 2. The steel mesh 2 is divided into an upper layer and a lower layer. The steel truss 4 enhances the bearing capacity of the floor deck so that it can meet the requirements of structural safety. The connecting portion 3 is used to connect the steel mesh 2 in the lower layer of the prefabricated steel cage, ensuring a firm connection between the floor deck and the prefabricated steel cage, and improving the stability and seismic resistance of the overall structure. The prefabricated steel cage is prefabricated in the factory to reduce on-site construction time. The thermal insulation core layer 12 is the main part of the thermal insulation bottom formwork 1. Figure 2 As shown, a cavity structure is designed inside, the first cavity 8 is located above the second cavity 13, and the volume of the second cavity 13 is larger than the first cavity 8. This design not only increases the total volume of the cavity and improves the thermal insulation performance, but also forms a sound-absorbing resonance structure. The sound-absorbing resonance structure is composed of the first cavity 8 and the second cavity 13, and they are connected. When sound waves are transmitted, a resonance effect will be generated inside the cavity, thereby consuming sound energy and achieving the effect of sound absorption and noise reduction. This sound-absorbing resonance structure is distributed in an array in the thermal insulation core layer 12, ensuring that the floor decking has good acoustic properties while providing thermal insulation performance.

[0034] In this embodiment, multiple aspects such as thermal insulation, structural safety, construction efficiency and acoustic performance are fully considered. The bottom formwork integrates thermal insulation, sound insulation, flame retardancy and formwork functions, reduces secondary insulation, sound insulation and other construction processes and formwork removal processes, improves construction efficiency, and is a new type of building material with broad application prospects.

[0035] Furthermore, an adjusting portion for adjusting the volume of the first cavity 8 is provided in the first cavity 8 .

[0036] Furthermore, the regulating part is an airbag 7 that matches the shape of the first cavity 8, the airbag 7 is connected to a pre-buried pipe in the thermal insulation bottom mold 1, and the pre-buried pipe is connected to an external inflation device.

[0037] Specifically, Figure 2As shown, the adjustment part is an airbag 7 that matches the shape of the first cavity 8. The airbag 7 is located in the first cavity 8. The airbag 7 can be inflated and deflated as needed to adjust the volume of the first cavity 8. This design allows the thermal insulation and acoustic properties of the thermal insulation bottom mold 1 to be dynamically adjusted according to actual needs. The airbag 7 is connected to an external inflation device through a pre-buried pipeline (not shown in the figure). The inflation device is an automatic air pump (not shown in the figure) for inflating or extracting gas from the airbag 7, ensuring that the inflation and deflation of the airbag 7 is simple and quick. By adjusting the inflation and deflation state of the airbag 7, the volume of the first cavity 8 can be dynamically adjusted, thereby changing the thermal insulation and acoustic properties of the thermal insulation bottom mold 1. This design allows the floor deck to better adapt to different environments and usage requirements. By adjusting the inflation and deflation state of the airbag 7, the overall structure of the floor deck can also be fine-tuned to improve its stability and bearing capacity. This design makes the floor deck more flexible and reliable in dealing with different loads and deformation requirements.

[0038] Furthermore, a composite damping layer 10 is provided on the inner wall of the second cavity 13, and the composite damping layer 10 is butyl rubber.

[0039] Furthermore, a sound absorbing filler 9 is provided in the second cavity 13, and the sound absorbing filler 9 is glass wool.

[0040] Specifically, Figure 3 As shown, the inner wall of the second cavity 13 is provided with a composite damping layer 10, and the damping layer uses butyl rubber as the main material. Butyl rubber has excellent damping performance and sealing performance, can effectively absorb and isolate sound waves, and improve the acoustic performance of the floor deck. The composite damping layer 10 can reduce the reflection and propagation of sound waves in the second cavity 13, thereby reducing the transmission efficiency of noise. At the same time, the sealing performance of butyl rubber can also prevent external air and moisture from entering the second cavity 13, keeping its interior dry and clean. The second cavity 13 is provided with a sound-absorbing filler 9, and the filler uses glass wool as the main material, or polyester fiber. Glass wool is a porous sound-absorbing material with good sound absorption and heat insulation performance. The sound-absorbing filler 9 can absorb the sound wave energy entering the first cavity 8 and convert it into other forms of energy such as heat energy, thereby reducing the reflection and propagation of noise. At the same time, the heat insulation performance of glass wool can also improve the thermal insulation effect of the floor deck and reduce energy loss.

[0041] Furthermore, a resonance sensor for real-time monitoring of noise frequency is embedded in the side wall of the first cavity 8. The resonance sensor is connected to an external controller, and the controller adjusts the start and stop of the inflation device in real time according to the data fed back by the resonance sensor.

[0042] Specifically, a resonance sensor (not shown in the figure) is embedded in the side wall of the first cavity 8, and is used to monitor the noise frequency transmitted through the floor deck in real time. This sensor can sense the sound wave vibration within a specific frequency range and convert it into an electrical signal for transmission. The resonance sensor is made of advanced piezoelectric materials or micro-electromechanical systems (MEMS) technology, and has the characteristics of high sensitivity, low power consumption and long-term stability. It can accurately capture the sound wave signal and provide a reliable basis for subsequent data processing and analysis. The resonance sensor is connected to the external controller by wire or wireless means. The controller is responsible for receiving the real-time data fed back by the resonance sensor, and analyzing and processing the data according to a preset algorithm or model. According to the noise frequency monitored by the resonance sensor, the controller (not shown in the figure) can determine in real time whether it is necessary to adjust the inflation and deflation state of the airbag 7 in the first cavity 8. When the noise frequency exceeds the preset threshold, the controller will trigger the inflation device to start, increase the gas pressure in the airbag 7, thereby changing the volume and acoustic performance of the first cavity 8; conversely, when the noise frequency decreases, the controller will instruct the inflation device to stop inflation or deflate.

[0043] By introducing a resonance sensor and controller linkage mechanism, the floor deck achieves intelligent monitoring and dynamic adjustment of noise frequency. This design not only improves the acoustic performance of the floor deck, but also enables it to make adaptive adjustments according to environmental changes, providing users with a more comfortable and quiet living environment.

[0044] The intelligent adjustment mechanism helps reduce unnecessary energy consumption and noise pollution. When the external noise level is low, the floor decking will automatically adjust to a lower acoustic performance state, thereby saving energy consumption; when the noise level increases, it can quickly respond and improve the acoustic performance to effectively isolate noise interference.

[0045] Due to its unique acoustic performance and intelligent adjustment function, this embodiment has a wide range of application prospects in places requiring high acoustic quality, such as high-rise buildings, schools, hospitals, libraries, etc. It can not only meet the user's high requirements for the acoustic environment, but also improve the overall quality and comfort of the building.

[0046] Furthermore, the thermal insulation core layer 12 is made of non-combustible polystyrene cement, and a keel frame is embedded in the thermal insulation core layer 12 .

[0047] Furthermore, the top and bottom surfaces of the thermal insulation core layer 12 are provided with a cement mortar layer 5 of an alkali-resistant mesh cloth.

[0048] Specifically, the thermal insulation core layer 12 is made of non-combustible polystyrene cement as the core material, and the outer side is a cement mortar layer 5 with a built-in alkali-resistant mesh cloth, and its thermal conductivity is ≤0.06W / (m·K), the bending strength is ≥5MPa, and the elastic modulus is ≥10GPa. The bottom mold integrates the functions of thermal insulation, flame retardancy and formwork, which reduces the secondary insulation construction process and the formwork and demolding process, and improves the construction efficiency.

[0049] Furthermore, the surface of the cement mortar layer 5 on the top surface of the thermal insulation core layer 12 is sprayed with a 3-5 mm thick water-based damping sound insulation material 6 .

[0050] Specifically, Figure 2 As shown, after the floor deck is installed in place, concrete is poured on site. After the concrete is poured, the bottom formwork is not removed. The formwork and the concrete are poured as a whole at one time without a cavity. After the concrete is finally set, 3mm water-based damping sound insulation material 6 is sprayed on the surface. The construction is convenient and compared with other sound insulation materials, the thickness of the floor slab will not be increased.

[0051] Furthermore, a U-shaped groove 14 is provided on the side wall of the connecting portion 3, and the lower steel bars 11 of the prefabricated steel cage are placed in the groove 14. The connecting portion 3 is connected to the insulation bottom mold 1 by screws 16. The screws 16 pass through the connecting portion 3 from top to bottom and are connected to the insulation bottom mold 1, and the lower steel bars 11 of the prefabricated steel cage are confined in the groove 14.

[0052] Specifically, Figure 4 and Figure 5 As shown, the side wall of the connecting part 3 is provided with a U-shaped slot 14, and a vertical through hole 15 passes through the slot 14 and the connecting part 3, and the lower steel bar 11 is inserted into the slot 14. The lower steel bar 11 refers to the transverse or longitudinal steel bar in the lower steel mesh 2. The screw 16 passes through the hole 15 and is anchored in the thermal insulation bottom mold 1. The thickness of the lower part of the connecting part 3 is 15 mm, which is just the thickness of the protective layer. The connecting part 3 can fix the steel cage on the thermal insulation bottom mold 1 and also serves as a protective layer pad.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. According to the technical essence of the present invention, within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. An assembled non-disassembly insulated bottom formwork steel cage floor deck, characterized in that: The invention comprises a thermal insulation bottom mold (1), wherein a plurality of connection parts (3) for connecting a prefabricated steel cage are provided on the top of the thermal insulation bottom mold (1), wherein a thermal insulation core layer (12) is provided inside the thermal insulation bottom mold (1), wherein a first cavity (8) with an adjustable cavity volume and a second cavity (13) connected to the first cavity (8) are provided inside the thermal insulation core layer (12), wherein the first cavity (8) is located above the second cavity (13), wherein the volume of the second cavity (13) is greater than that of the first cavity (8), wherein the first cavity (8) and the second cavity (13) form a sound-absorbing resonance structure, and wherein the sound-absorbing resonance structure is arrayed inside the thermal insulation core layer (12).

2. The assembled heat-insulating bottom formwork steel cage floor deck according to claim 1 is characterized in that: An adjustment portion for adjusting the volume of the first cavity (8) is provided in the first cavity (8).

3. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 2 is characterized in that: The regulating part is an air bag (7) whose shape matches that of the first cavity (8); the air bag (7) is connected to a pre-buried pipe in the thermal insulation bottom mold (1); and the pre-buried pipe is connected to an external inflation device.

4. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 1 is characterized in that: The inner wall of the second cavity (13) is provided with a composite damping layer (10), and the composite damping layer (10) is made of butyl rubber.

5. The assembled heat-insulating bottom formwork steel cage floor decking plate according to claim 1 is characterized in that: A sound absorbing filler (9) is provided in the second cavity (13), and the sound absorbing filler (9) is glass wool.

6. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 3 is characterized in that: A resonance sensor for real-time monitoring of noise frequency is embedded in the side wall of the first cavity (8); the resonance sensor is connected to an external controller, and the controller adjusts the start and stop of the inflation device in real time according to data fed back by the resonance sensor.

7. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 1 is characterized in that: The thermal insulation core layer (12) is made of non-combustible polystyrene cement, and a keel frame is embedded in the thermal insulation core layer (12).

8. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 7 is characterized in that: The top and bottom surfaces of the thermal insulation core layer (12) are provided with a cement mortar layer (5) made of alkali-resistant mesh cloth.

9. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 8, characterized in that: The surface of the cement mortar layer (5) on the top surface of the thermal insulation core layer (12) is sprayed with a 3-5 mm thick water-based damping sound insulation material (6).

10. The assembled heat-insulating bottom formwork-free steel cage floor deck according to claim 1, characterized in that: A U-shaped slot (14) is provided on the side wall of the connection portion (3), the lower steel bars (11) of the prefabricated steel cage are placed in the slot (14), the connection portion (3) is connected to the thermal insulation bottom mold (1) via screws (16), the screws (16) pass through the connection portion (3) from top to bottom and are connected to the thermal insulation bottom mold (1), and the lower steel bars (11) of the prefabricated steel cage are confined in the slot (14).

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