Thermal and sound insulation function separated integrated floor and production method thereof

Abstract

The application provides an integrated floor with separated sound insulation and heat preservation functions and a production method thereof, and belongs to the field of fabricated buildings. The integrated floor comprises, from bottom to top, a prefabricated bottom plate layer, a first functional layer, a composite cast-in-place layer, a second functional layer and a panel layer. The floor further comprises a shear-resistant piece and a vibration isolation tie-in box. The shear-resistant piece is arranged on the surface of the prefabricated bottom plate layer, penetrates through the first functional layer and is tied in the composite cast-in-place layer. The vibration isolation tie-in box comprises a main body, a vibration absorption layer and a tie-in piece. The main body has a closed damping chamber inside, and the vibration absorption layer is attached to the main body. The main body is embedded in the composite cast-in-place layer, and one end of the tie-in piece is assembled in the main body and extends into the closed damping chamber, and the other end penetrates through the second functional layer and is tied in the panel layer. By separating the first functional layer and the second functional layer arranged for sound insulation and heat preservation, the problem that the sound insulation layer and the heat preservation layer are deformed inconsistently and cause the building panel layer to crack and arch is avoided.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated buildings, and in particular relates to an integrated floor slab with separate thermal insulation and sound insulation functions and its production method. Background Technology

[0002] With the introduction of national mandatory standards such as the "Residential Building Code" GB 55038-2025 regarding the impact sound insulation performance of residential floor slabs (e.g., weighted standardized impact sound pressure level L'nT,w ≤ 65dB), and the increasing energy-saving requirements of green buildings, floating floor insulation and soundproofing systems have been widely used in newly constructed residential buildings. This system involves laying an elastic thermal and sound insulation layer on the floor slab structure, followed by a fine aggregate concrete protective layer, and installing vertical sound insulation panels between the protective layer and the surrounding walls, forming a "mass-spring-mass" vibration isolation system. This simultaneously achieves effective isolation of impact sound and floor insulation. In a floating floor, the building panel layer and the structural floor slab are completely separated by the thermal and sound insulation layer, much like a ship floating on water, hence the name "floating floor." However, what was originally intended as a public welfare project to solve thermal and sound insulation issues has become a major area of ​​quality problems. Numerous engineering projects have demonstrated that floating floor slabs commonly suffer from quality issues such as cracking and arching of the building's panel layer, causing widespread public problems.

[0003] The reason lies in the fact that the insulation and sound insulation layers of the sandwich structure are tightly bonded together. Stress concentration occurs due to the mismatch in properties between the two materials and the lack of interfacial constraint. The core functional layer of the floating floor system—the insulation and sound insulation pad—is typically composed of flexible materials with low elastic modulus, such as expanded polystyrene (EPS), extruded polystyrene (XPS), polyurethane, rubber-plastic composites, or various other composite materials. The upper fine-aggregate concrete protective layer, however, is a rigid material with an elastic modulus far higher than the lower pad. According to DB32 / T3921-2020, to prevent sound bridges, there is no rigid connection between the protective layer and the lower structural floor slab; it is completely "floating" on top of the elastic pad. This structure means that the shrinkage deformation of the protective layer under load, temperature, and humidity changes cannot be effectively constrained by the lower structural floor slab. Its deformation is almost entirely resisted by its own tensile strength and the support of the lower pad. When the local compression deformation of the lower flexible pad is uneven or the support stiffness is insufficient, tensile stress is easily induced at the bottom of the protective layer, leading to cracking. Some manufacturers combine the two materials together, but this still cannot completely solve the problem of cracking and arching of building panels.

[0004] Current standards primarily rely on placing single or double layers of wire mesh within the protective layer to improve crack resistance. However, this measure is essentially a "passive resistance" to crack propagation. On one hand, the vertical positioning of the wire mesh is difficult to control precisely during construction; if the position is too low, its crack-resistant effect will be greatly reduced. On the other hand, the mesh cannot address initial cracks originating at the bottom of the protective layer caused by uneven deformation of the underlying subbase. Although the standards also propose setting expansion joints or post-cut joints to release stress, this is considered "crack resistance through joints," which compromises the integrity of the ground, affects aesthetics, and is limited in areas with waterproofing requirements such as kitchens and bathrooms; it is not a fundamental solution. Therefore, this invention was developed.

[0005] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] One objective of this invention is to provide an integrated floor slab that is crack-resistant and has good sound insulation. The second objective of this invention is to propose a production method for integrated floor slabs that are crack-resistant and have good sound insulation.

[0007] To achieve one of the above objectives, the present invention first provides an integrated floor slab with separate thermal insulation and sound insulation functions, comprising, from bottom to top, a precast base slab layer, a first functional layer, a composite cast-in-place layer, a second functional layer, and a panel layer; and further comprising: Shear-resistant member, the shear-resistant member is disposed on the surface of the precast base slab layer, the shear-resistant member passes through the first functional layer and is connected to the composite cast-in-place layer; A vibration isolation tie box, comprising a main body, a vibration damping and absorbing layer, and a tie member; the main body has a closed vibration damping chamber inside, and the vibration damping and absorbing layer is attached to the main body; the main body is embedded in the composite cast-in-place layer, and one end of the tie member is assembled and installed on the main body and extends into the closed vibration damping chamber, while the other end passes through the second functional layer and is tied to the panel layer.

[0008] Preferably, the vibration damping and absorbing layer is attached to the inner wall and / or outer wall of the body.

[0009] Preferably, the vibration damping and absorbing layer is attached to the outer wall of the main body, and its top elevation is flush with the top surface of the composite cast-in-place layer.

[0010] Preferably, the tie member is mounted to the main body via a first mounting assembly; the first mounting assembly includes a first washer and a first nut, the first nut being fixed to the first washer, and the first washer being fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the tie member is provided with a threaded section, the threaded section of the tie member passing through the main body and the vibration damping and absorbing layer and being threadedly connected to the first nut.

[0011] Preferably, the tie member includes a tie mounting section and a tie anchor claw section. The tie mounting section is assembled and installed on the main body and extends into the closed vibration damping chamber. The tie anchor claw section is formed on the tie mounting section and anchored to the panel layer.

[0012] Preferably, the vibration isolation tie box further includes a bolted member, which is disposed on the main body and bolted to the composite cast-in-place layer; one end of the bolted member extends into the closed vibration damping chamber and forms a blockage with the tie member.

[0013] Preferably, the bolt is mounted to the main body via a second mounting assembly; the second mounting assembly includes a second washer and a second nut, the second nut being fixed to the second washer, and the second washer being fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the bolt is provided with a threaded section, the threaded section of the bolt passing through the main body and the vibration damping and absorbing layer and being threadedly connected to the second nut.

[0014] Preferably, the bolted component includes a bolted mounting section and a bolted anchor claw section. The bolted mounting section is assembled and installed on the main body and extends into the enclosed vibration damping chamber. The bolted anchor claw section is formed on the bolted mounting section and anchored to the composite cast-in-place layer.

[0015] Preferably, it is implemented as an enclosed space formed within the main body.

[0016] Preferably, the first functional layer is a thermal insulation layer and the second functional layer is a sound insulation layer; or, the first functional layer is a sound insulation layer and the second functional layer is a thermal insulation layer.

[0017] Preferably, the shear-resistant member is selected from one or more of the following combinations: C-channel steel, Z-shaped steel, H-shaped steel, steel pipe, truss, and concrete rib.

[0018] Preferably, it also includes an intermediate structural layer, which is formed on the first functional layer. The first functional layer is sandwiched between the precast base plate layer and the intermediate structural layer. The shear-resistant member passes through the first functional layer and the intermediate structural layer and is connected to the composite cast-in-place layer. The precast base plate layer, the first functional layer, the intermediate structural layer, the composite cast-in-place layer, the second functional layer, and the panel layer form a six-sided panel.

[0019] The technical effects of the above-mentioned technical solutions of the present invention arise from one or more of the following combinations: This application separates the first and second functional layers for sound insulation and thermal insulation, forming a unique "five-layer" floor slab relationship. This avoids the problem of inconsistent deformation between the sound insulation and thermal insulation layers, which exacerbates cracking and arching of the building panel layer. Furthermore, the panel layer is constrained to the composite cast-in-place layer by the tie-fitting components and the main body of the vibration isolation tie box, preventing cracking caused by uneven local compression deformation of the functional layer materials. The vibration at the end of the tie-fitting components is blocked in the closed vibration-damping cavity of the main body, and the sound bridge between the panel layer and the main body is blocked by a vibration-absorbing layer. This simultaneously solves the two core problems of "the connection between the building panel layer and the structural floor slab" and "vibration and sound insulation, i.e., preventing the vibration of the building panel layer from being transmitted to the structural floor slab."

[0020] Integrated floor slabs establish controllable constraints between the structural layers (precast top slab layer + composite cast-in-place layer) and the panel layer through "shear-resistant components" and "vibration-isolation tie boxes." When the sound insulation layer undergoes uneven compressive deformation due to local loads or material creep, the tie boxes actively "hold" the upper panel layer, effectively transferring the constraint force of the underlying structure to the panel layer. This significantly limits the bending and shear stresses caused by the deformation of the "soft foundation" in the panel layer, thereby actively preventing and fundamentally suppressing cracking and overcoming the shortcomings of existing technologies that rely solely on wire mesh to "passively resist" cracks. Multiple evenly distributed vibration-isolation tie boxes form multiple evenly distributed constraint points within the panel layer, transforming the stress on the panel layer from a traditional, uncontrollable state entirely determined by the flexible padding layer to a controllable and designable elastic support state. This not only prevents cracking but also improves the overall stiffness and stability of the entire floating floor system.

[0021] The end of the bolted component in this application also extends into the closed vibration-damping cavity of the main body, and blocks the acoustic bridge with the end of the tie component.

[0022] During installation, the main body is first embedded in the composite cast-in-place layer, and then the tie-up components are installed on site. The first washer and the first nut of the tie-up component are fixed to the inner wall of the main body or the vibration damping and absorption layer of the inner wall in advance. During installation, the tie-up installation section only needs to pass through the sound insulation layer, align with the installation hole of the main body, and then pass through the vibration damping and absorption layer to install the first nut. By placing the process in the factory and handing over the simple installation process to the on-site construction personnel, the construction requirements are greatly reduced.

[0023] This integrated floor slab can be used for the prefabricated portion of a common prefabricated base slab layer, or for the sandwich prefabricated portion consisting of a prefabricated base slab layer, a first functional layer, and an intermediate structural layer, forming a six-section panel.

[0024] To achieve the above two objectives, the present invention provides a method for producing an integrated floor slab with separate thermal insulation and sound insulation functions, comprising the following steps: In the prefabrication stage, the shear-resistant component, the prefabricated base plate layer, and the first functional layer are prefabricated and installed in the factory to form a prefabricated part, so that the shear-resistant component is placed on the surface of the prefabricated base plate layer to achieve surface reinforcement, and the shear-resistant component passes through the first functional layer and extends above the first functional layer. In the on-site phase, the prefabricated components are installed on-site. The vibration isolation tie box is installed on the first functional layer and cast-in-place to form a composite cast-in-place layer. The composite cast-in-place layer is constrained by the prefabricated base slab layer through the shear-resistant member. The vibration isolation tie box includes a main body, a vibration damping and absorption layer, and tie members. The main body has a closed vibration damping chamber inside, and the vibration damping and absorption layer is attached to the main body. The main body is embedded in the composite cast-in-place layer. One end of the tie member is assembled and installed on the main body and extends into the closed vibration damping chamber. A second functional layer is laid on the composite cast-in-place layer, and the tie member extends into the second functional layer. Then, a panel layer is cast on the second functional layer. The panel layer covers the tie member and is constrained by the composite cast-in-place layer through the vibration isolation tie box.

[0025] The technical effects of the above-mentioned technical solutions of the present invention arise from one or more of the following combinations: This method completes the assembly of the "vibration isolation tie box," the most critical component determining the sound insulation and crack resistance of floor slabs, entirely within a factory environment. This ensures that the processing precision, material properties, and assembly quality of core components are all under control and inspectable standardization, eliminating installation errors and quality fluctuations caused by differences in on-site worker skills and harsh environments. On-site workers only need to perform simple operations such as "alignment-insertion-tightening" or "placement-pouring," minimizing the impact of construction on the final system performance. This achieves a perfect decoupling between "high-quality prefabrication" and "low-skill on-site operation," guaranteeing final quality.

[0026] Because the "vibration isolation tie box" is a standardized and modular prefabricated component, its model, performance parameters, and layout spacing can all be standardized and digitized. During the design phase, precise layout and clash checks can be performed using a BIM model; during factory production, accurate material cutting and assembly based on the digital model can be achieved; and during construction, component information traceability and installation guidance based on QR codes or RFID can be implemented. This approach naturally aligns with the development trend of industrialized and digitalized construction, providing a technological foundation for improving the efficiency and transparency of the entire construction industry chain.

[0027] In traditional floating floor slab construction, laying the foundation layer, binding the wire mesh, and pouring the panel layer are all wet on-site operations, involving numerous overlapping processes and long curing periods. This invention prefabricates the "structural base slab + first functional layer" as a single module, converting some facade work into planar work and some on-site work into factory work. The superimposed cast-in-place layers can be poured quickly on-site, while the "vibration isolation tie box" is already in place as an embedded component. When laying the second functional layer and pouring the panel layer, there is no need for complex crack-resistant connectors; the process is smooth and tightly connected, significantly shortening the overall construction period. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the five-section structure of the integrated floor slab of the present invention.

[0029] Figure 2 This is a schematic diagram of the six-section structure of the integrated floor slab of the present invention.

[0030] Figure 3 This is a schematic diagram of the prefabricated part of the integrated floor slab five-layer structure of the present invention.

[0031] Figure 4 This is a schematic diagram of the prefabricated part of the integrated floor slab six-sided structure of the present invention.

[0032] Figure 5 This is a cross-sectional view of the integrated floor slab of the present invention.

[0033] Figure 6 This is a diagram showing the reinforcement arrangement of the vibration isolation tie box, the precast base slab, the superimposed cast-in-place layer, and the panel layer in the integrated floor slab of this invention.

[0034] Figure 7 This is an installation layout diagram of the vibration isolation tie box in the integrated floor slab of the present invention.

[0035] Figure 8 This is a schematic diagram of the installation of the tie-up components of the vibration isolation tie box in the integrated floor slab of the present invention.

[0036] Figure 9 This is a schematic diagram of the vibration isolation tie box in the integrated floor slab of the present invention.

[0037] Figure 10 This is a structural disassembly diagram of the vibration isolation tie box in the integrated floor slab of the present invention.

[0038] Figure 11 This is a schematic diagram of the installation of the first and second installation components of the vibration isolation tie box in the integrated floor slab of the present invention.

[0039] Figure 12 This is a reinforcement layout diagram of the vibration isolation tie box, the composite cast-in-place layer, and the panel in the integrated floor slab of the present invention.

[0040] The components are as follows: 1. Vibration isolation tie box; 10. Enclosed vibration reduction chamber; 11. Main body; 111. Rear sealing plate; 12. Tie member; 121. Tie installation section; 122. Tie anchor claw section; 123. First gasket; 124. First nut; 13. Bolted member; 131. Bolted installation section; 132. Bolted anchor claw section; 133. Second gasket; 134. Second nut; 14. Vibration damping and absorption layer; 14a. Outer wall vibration damping and absorption layer; 14b. Inner wall vibration damping and absorption layer; 2. Composite cast-in-place layer; 21. Composite cast-in-place layer steel mesh; 3. Second functional layer; 4. Panel layer; 41. Panel layer steel mesh; 5. Precast base slab layer; 51. Precast base slab layer steel mesh; 6. First functional layer; 7. Shear member; 8. Intermediate structural layer. Detailed Implementation

[0041] The following description is provided to enable those skilled in the art to implement and use the invention and adapt it to specific application contexts. Various modifications and uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Therefore, the invention is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0042] In the following detailed description, numerous specific details are set forth to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that practice of the invention is not necessarily limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without being depicted in detail to avoid obscuring the invention.

[0043] Readers should note all documents and references submitted concurrently with this specification and open to public inspection, the contents of which are incorporated herein by reference. Unless otherwise expressly stated, all features disclosed in this specification (including any appended claims, abstracts, and drawings) may be replaced by alternative features for the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features.

[0044] Note that, where used, the markings vertical, horizontal, left, right, front, back, top, bottom, front, back, clockwise, and counterclockwise are used merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or orientation between the various parts of an object. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Note that, in practice, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments. The combination of the content following "further," "preferably," "even further," or "more preferably" with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment can form yet another embodiment.

[0047] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0048] "And / or" in parallel: means "both A and B"; "or" in alternative: means "either A or B"; "and / or" in combination: means "both A and B, and either A or B".

[0049] Structural Example: Please combine Figures 1-12 This embodiment provides an integrated floor slab with separate thermal insulation and sound insulation functions, comprising at least, from bottom to top, a precast base slab layer 5, a first functional layer 6, a composite cast-in-place layer 2, a second functional layer 3, and a panel layer 4. Further, it also includes shear-resistant members 7 and vibration-damping tie boxes 1, wherein, as... Figure 5 As shown, the shear-resistant member 7 is installed on the surface of the precast base slab 5, and passes through the first functional layer 6 and is connected to the composite cast-in-place layer 2. (Combined) Figure 9 and Figure 10 The vibration isolation tie box 1 includes a main body 11, a vibration damping and absorption layer 14, and a tie member 12. The main body 11 has a closed vibration damping chamber 10 (not shown) inside, and the vibration damping and absorption layer 14 is attached to the main body 11. The main body 11 is embedded in the composite cast-in-place layer 2. One end of the tie member 12 is assembled and installed in the main body 11 and extends into the closed vibration damping chamber 10, and the other end passes through the second functional layer 3 and is tied in the panel layer 4.

[0050] Please combine Figure 5 and Figure 6In this embodiment, the precast base slab layer 5 is a precast concrete slab, which can be precast in the factory after the precast base slab reinforcement mesh 51 is configured, together with the shear-resistant member 7 and the first functional layer 6; the composite cast-in-place layer 2 is cast in place after the composite cast-in-place layer reinforcement mesh 21 is configured on site; similarly, the panel layer 4 is cast in place on the second functional layer 3 after the panel layer reinforcement mesh 41 is configured on site.

[0051] The first functional layer 6 is either a sound insulation layer or a thermal insulation layer, or a laminated combination of both. The selection of a sound insulation layer is a common technique in floor slabs and will not be elaborated upon here. Generally, sound insulation layers use materials such as rubber pads, while thermal insulation layers use materials such as extruded polystyrene boards. Similarly, the second functional layer 3 is either a thermal insulation layer or a sound insulation layer, or a laminated combination of both. In this embodiment, the first functional layer 6 is a thermal insulation layer, and the second functional layer 3 is a sound insulation layer. This is to prevent uneven local compression deformation caused by the different materials used, and the two layers are arranged separately.

[0052] In this embodiment, as a preferred option, the precast base slab layer 5 and the first functional layer 6 are implemented as precast parts of a composite slab. The surface of the precast base slab layer 5 is provided with shear-resistant members 7 to enhance the rigidity of the slab surface. The shear-resistant members 7 are selected from one or more combinations of the following: C-shaped channel steel, Z-shaped steel, H-shaped steel, steel pipe, truss, and concrete ribs. In this embodiment, C-shaped channel steel is used as an example for description. The C-shaped channel steel can be arranged continuously along the length of the slab or evenly arranged in a matrix.

[0053] like Figure 3 As shown, after the steel mesh of the precast base slab 5 is laid out in the factory, the shear-resistant member 7 is cast together with the precast base slab 5, so that the bottom of the shear-resistant member 7 is embedded in the precast base slab 5 and the top extends onto the precast base slab 5. Then, the first functional layer 6 is laid on the precast base slab 5 to form the precast part. Together with the post-cast composite cast-in-place layer 2, the second functional layer 3, and the panel layer 4, it forms as shown in the figure. Figure 1 The five-piece sandwich board shown.

[0054] like Figure 4 As shown, the precast portion may further include an intermediate structural layer 8, which is formed on the first functional layer 6. The first functional layer 6 is sandwiched between the precast base slab layer 5 and the intermediate structural layer 8. A shear-resistant member 7 passes through the first functional layer 6 and the intermediate structural layer 8 and is connected to the composite cast-in-place layer 2. At this time, the precast base slab layer 5, the first functional layer 6, and the intermediate structural layer 8 form a sandwich base slab through the shear-resistant member 7. The precast base slab layer 5, the first functional layer 6, the intermediate structural layer 8, the composite cast-in-place layer 2, the second functional layer 3, and the panel layer 4 form a structure as shown in the diagram. Figure 2 The six-sided sandwich board shown.

[0055] Shear-resistant member 7 binds and constrains precast base slab layer 5, first functional layer 6 and composite cast-in-place layer 2 to form structural floor slab layer; while vibration isolation tie box 1 floats second functional layer 3 and panel layer 4 on structural floor slab layer, and constrains panel layer 4 to composite cast-in-place layer 2 through vibration isolation tie box 1.

[0056] Furthermore, such as Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the vibration isolation tie box 1 includes a main body 11, a vibration damping and absorbing layer 14, and a tie member 12. The main body 11 has a closed vibration damping chamber 10 inside. The vibration damping and absorbing layer 14 is attached to the main body 11. The main body 11 is embedded in the composite cast-in-place layer 2. One end of the tie member 12 is assembled and installed in the main body 11 and extends into the closed vibration damping chamber 10. The other end passes through the sound insulation layer and is tied in the panel layer 4.

[0057] Please combine Figure 9 and Figure 10 The main body 11 of the vibration isolation tie box 1 serves as the primary structural load-bearing component. Its structure is preferably implemented as a hexahedron. The main body 11 has an opening, which is sealed with a rear sealing plate 111. The enclosed vibration damping chamber 10 is implemented as a closed space enclosed within the main body 11. Specifically, during production, the main body 11 is formed by cutting, stamping, or welding metal material into a hexahedron with an opening, one of which is sealed by the rear sealing plate 111. It is conceivable that the metal material can be replaced by equivalent or superior composite materials, depending on the actual construction cost.

[0058] Furthermore, the vibration damping layer 14 is attached to the inner wall and / or outer wall of the main body 11. In a preferred embodiment of this invention, the vibration damping layer 14 is attached to both the inner and outer walls of the main body 11. Specifically, when attached to the inner wall of the main body 11, it is implemented as an inner wall vibration damping layer 14b, and when attached to the outer wall of the main body 11, it is implemented as an outer wall vibration damping layer 14a.

[0059] Furthermore, in the integrated floor slab, the vibration damping and absorption layer 14 is attached to the outer wall of the main body 11 as the outer wall vibration damping and absorption layer 14a, and its top elevation is flush with the top surface of the composite cast-in-place layer 2.

[0060] Please combine Figure 5 , Figure 6In this embodiment, the panel layer 4 is constrained by the superimposed cast-in-place layer 2 through the tie member 12 and the main body 11, thereby achieving force transmission and preventing cracking of the panel layer 4. Specifically, the tie member 12 is installed on the main body 11 through a first mounting assembly. Further, the first mounting assembly includes a first washer 123 and a first nut 124. The first nut 124 is fixed to the first washer 123, and the first washer 123 is fixed to the vibration damping and absorbing layer 14 on the inner wall of the main body 11. One end of the tie member 12 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the first nut 124.

[0061] Furthermore, the tie member 12 includes a tie mounting section 121 and a tie anchor claw section 122. The tie mounting section 121 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The tie anchor claw section 122 is formed on the tie mounting section 121 and anchored to the panel layer 4.

[0062] In practical implementation, the anchor claw section 122 is formed by bending a steel bar and is welded to the anchor installation section 121. The anchor installation section 121 uses a straight steel bar with a threaded end. Correspondingly, a through hole is made in the main body 11 for the anchor installation section 121 to pass through. Inside the main body 11, the first gasket 123 and the first nut 124 are welded and fixed into a whole, and then temporarily attached to the vibration-damping and absorbing layer 14 on the inner wall of the main body 11. During installation, the holes in the main body 11, the first gasket 123, the first nut 124, and the vibration-damping and absorbing layer 14 correspond to each other. The vibration-damping and absorbing layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and sealing.

[0063] Preferably, the first gasket 123 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0064] Please combine Figure 9 , Figure 10 and Figure 11In this embodiment, the vibration isolation tie box 1 further includes a bolted member 13, which is disposed on the main body 11 and bolted to the composite cast-in-place layer 2. Specifically, the bolted member 13 is installed on the main body 11 via a second mounting assembly. The second mounting assembly includes a second washer 133 and a second nut 134. The second nut 134 is fixed to the second washer 133, and the second washer 133 is fixed to the vibration damping and absorbing layer 14 on the inner wall of the main body 11. One end of the bolted member 13 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the second nut 134. Similarly, for the tie member 12, the bolted member 13 includes a bolted installation section 131 and a bolted anchor claw section 132. The bolted installation section 131 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The bolted anchor claw section 132 is formed on the bolted installation section 131 and anchored to the composite cast-in-place layer 2.

[0065] In practical implementation, the bolted anchor claw section 132 is formed by bending a steel bar and is welded to the bolted installation section 131. The bolted installation section 131 uses a straight steel bar with a threaded end. Correspondingly, a through hole is made on the side of the main body 11 for the bolted installation section 131 to pass through. Inside the main body 11, the second washer 133 and the second nut 134 are welded and fixed together to form a whole, and then temporarily adhered to the vibration-damping absorption layer 14 (i.e., the inner wall vibration-damping absorption layer 14b) on the inner wall of the main body 11. During installation, the holes on the side of the main body 11, the second washer 133, the second nut 134, and the vibration-damping absorption layer 14 correspond to each other. The vibration-damping absorption layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and sealing.

[0066] Preferably, the second gasket 133 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0067] In this embodiment, the tie anchor segment 122 and tie mounting segment 121 of the tie member 12, together with the main body 11 and the bolted anchor segment 132 and bolted mounting segment 131, transmit the force of the panel layer 4 to the composite cast-in-place layer 2. However, the ends of the tie mounting segment 121 and the bolted mounting segment 131 are disconnected in the vibration damping cavity, and the main body 11, which transmits the force, is attached to the vibration absorption layer 14 to absorb the vibration. The ends of the tie mounting segment 121 and the bolted mounting segment 131 are completely disconnected in the vibration damping cavity and do not transmit vibration; however, the panel layer 4 can be constrained by the composite cast-in-place layer 2 through the vibration isolation tie box 1 to prevent cracking.

[0068] Compared to existing floating floor slabs with no connection, the project found a cracking risk of nearly 100%. The reasons for the cracking are: (1) The structural concept of crack resistance emphasizes connection, such as beam-column connection and beam-slab connection. The construction of this "floating" panel layer 4 violates the basic principles of the structural concept. (2) The "floating" panel layer 4 is generally 40mm thick and is only equipped with φ4 steel wire mesh inside. Since the commonly used "floating" sound insulation pad is cross-linked polyethylene pad (low density, poor strength, large deformation, and closed pores are easy to break under load...), uneven settlement deformation will occur under small loads, and temperature deformation will be superimposed. When the slab area exceeds 2m*2m, cracking and arching problems will occur. However, by using the technology of this invention, the cracked area can be reduced by more than 95%, or the deformation resistance can be increased by more than 95%.

[0069] Existing technology directly penetrates the sound insulation layer with tie rods, connecting the panel layer 4 and the composite cast-in-place layer 2, resulting in a rigid connection. This is similar to an equipment room on the roof where the air conditioner is placed directly on a steel plate on the equipment foundation, which is then rigidly connected to the roof with monolithic concrete. The air conditioner's vibrations can penetrate the steel plate, directly transmitting to the equipment foundation and then to the entire roof, failing to provide any vibration reduction or sound insulation effect and thus being ineffective. The enclosed chamber structure of this embodiment uses a flexible connection, similar to a rubber vibration isolation layer between the air conditioner and the equipment foundation. This absorbs the air conditioner's vibrations within the rubber isolation layer, preventing transmission to the equipment foundation and, moreover, the roof.

[0070] Please combine Figure 2 and Figure 3 The transmission and blocking process of vibration sound waves in the closed vibration damping chamber 10 is as follows: “Vibration source” – “Panel layer 4” – “Tie anchor claw section 122” – “Tie installation section 121” – “First nut 124” – “First gasket 123” – Horizontal “Inner wall vibration damping and absorption layer 14b” (first vibration sound wave blocking) – “Main body 11” – Vertical “Inner wall vibration damping and absorption layer 14b” (second vibration sound wave blocking) – “Second gasket 133” – “Second nut 134” – “Bolted installation section 131” – “Outer wall vibration damping and absorption layer 14a” (third vibration sound wave blocking) – “Bolt anchor claw section 132” – “Overlapping cast-in-place layer 2” – “First functional layer 6” (fourth vibration sound wave blocking).

[0071] The function of the enclosed vibration damping chamber 10 is to disconnect the "tie member 12" and the "bolted member 13" within the enclosed chamber, so that they do not come into direct contact, but can only be connected through the "inner wall vibration damping and absorption layer 14b", which plays a similar role to the vibration isolation pad between the roof equipment foundation and the air conditioner.

[0072] The functional control index of the vibration damping and absorbing layer 14 is density, preferably 500~1000 kg / m³. 3 In practice, the density is less than 500 kg / m³. 3 Excessive deformation can cause it to be flattened and "hardened," turning it into a "rigid body" that transmits vibrations directly downwards, reducing its damping effect; a density greater than 1000 kg / m³ 3 This can lead to insufficient deformation, turning the body into a "rigid body" that transmits vibrations directly downwards, reducing the damping effect.

[0073] The vibration reduction principle in this embodiment is as follows: relying on the high elastic modulus of the vibration absorption layer 14 itself, the external vibration sound is converted into heat energy of internal friction, thus consuming vibration energy; for example, in the equipment room on the roof, a rubber sound insulation pad is set between the equipment foundation and the air conditioner, which can effectively transfer the load of the air conditioner to the equipment foundation and effectively block the vibration of the air conditioner from reaching the equipment.

[0074] Method Implementation Examples: This embodiment provides a method for producing an integrated floor slab with separate thermal insulation and sound insulation functions, mainly including the following two steps: prefabrication and cast-in-place: S1 Prefabrication Stage: Specifically, such as Figure 3 As shown, the shear-resistant component 7, the precast base plate layer 5, and the first functional layer 6 are precast and installed in the factory to form a precast part, so that the shear-resistant component 7 is placed on the surface of the precast base plate layer 5 to achieve surface reinforcement, and the shear-resistant component 7 passes through the first functional layer 6 and extends above the first functional layer 6.

[0075] In this embodiment, the precast base slab layer 5 is a precast concrete slab, which is precast in the factory in conjunction with the shear-resistant component 7 and the first functional layer 6.

[0076] The first functional layer 6 is either a sound insulation layer or a thermal insulation layer, or a sound insulation layer and a thermal insulation layer laminated together. The selection of a sound insulation layer is a common technique in floor slabs and will not be elaborated upon here. Generally, sound insulation layers use materials such as rubber pads, while thermal insulation layers use materials such as extruded polystyrene boards. Similarly, the second functional layer 3 is either a thermal insulation layer or a sound insulation layer, or a sound insulation layer and a thermal insulation layer laminated together. In this embodiment, the first functional layer 6 is a thermal insulation layer, and the second functional layer 3 is a sound insulation layer, also to prevent uneven local compression deformation caused by the different materials used in the two layers.

[0077] In this embodiment, as a preferred option, the precast base slab layer 5 and the first functional layer 6 are implemented as precast parts of a composite slab. The surface of the precast base slab layer 5 is provided with shear-resistant members 7 to enhance the rigidity of the slab surface. The shear-resistant members 7 are selected from one or more combinations of the following: C-shaped channel steel, Z-shaped steel, H-shaped steel, steel pipe, truss, and concrete ribs. In this embodiment, C-shaped channel steel is used as an example for description. The C-shaped channel steel can be arranged continuously along the length of the slab or evenly arranged in a matrix.

[0078] After the shear-resistant member 7 is laid out in the factory with the precast base slab reinforcement mesh 51, it is cast together with the precast base slab 5, so that the bottom of the shear-resistant member 7 is embedded in the precast base slab 5 and the top extends onto the precast base slab 5. Then, the first functional layer 6 is laid on the precast base slab 5 to form the precast part. Together with the post-cast composite cast-in-place layer 2, the second functional layer 3, and the panel layer 4, it forms a structure as follows: Figure 3 The five sandwich boards shown.

[0079] The precast portion may further include an intermediate structural layer 8, which is formed on the first functional layer 6. The first functional layer 6 is sandwiched between the precast base slab layer 5 and the intermediate structural layer 8. A shear-resistant member 7 passes through the first functional layer 6 and the intermediate structural layer 8 and is connected to the composite cast-in-place layer 2. At this point, the precast base slab layer 5, the first functional layer 6, and the intermediate structural layer 8 form a sandwich base slab through the shear-resistant member 7. The precast base slab layer 5, the first functional layer 6, the intermediate structural layer 8, the composite cast-in-place layer 2, the second functional layer 3, and the panel layer 4 form a structure as follows: Figure 4 The six sheets shown are Meiji boards.

[0080] Please combine Figure 3 and Figure 8 Shear-resistant member 7 binds and constrains precast base slab layer 5, first functional layer 6 and composite cast-in-place layer 2 to form structural floor slab layer; while vibration isolation tie box 1 floats second functional layer 3 and panel layer 4 on structural floor slab layer, and constrains panel layer 4 to composite cast-in-place layer 2 through vibration isolation tie box 1.

[0081] For further details, please refer to Figures 9-11 The vibration isolation tie box 1 includes a main body 11, a vibration damping and absorption layer 14, and a tie member 12. The main body 11 has a closed vibration damping chamber 10 inside. The vibration damping and absorption layer 14 is attached to the main body 11. The main body 11 is embedded in the composite cast-in-place layer 2. One end of the tie member 12 is assembled and installed in the main body 11 and extends into the closed vibration damping chamber 10. The other end passes through the sound insulation layer (second functional layer 3) and is tied to the panel layer 4.

[0082] The main body 11 of the vibration isolation tie box 1 serves as the primary structural load-bearing component. Its structure is preferably implemented as a hexahedron. The main body 11 has an opening, which is sealed by a rear sealing plate 111. The enclosed vibration damping chamber 10 is implemented as a closed space enclosing the interior of the main body 11. Specifically, during production, the main body 11 is formed by cutting, stamping, or welding metal material into a hexahedron with an opening, one of which is sealed by the rear sealing plate 111. It is conceivable that the metal material can be replaced by equivalent or superior composite materials, depending on the actual construction cost.

[0083] Furthermore, the vibration damping layer 14 is attached to the inner wall and / or outer wall of the main body 11. In a preferred embodiment of this invention, the vibration damping layer 14 is attached to both the inner and outer walls of the main body 11. Specifically, when attached to the inner wall of the main body 11, it is implemented as an inner wall vibration damping layer 14b, and when attached to the outer wall of the main body 11, it is implemented as an outer wall vibration damping layer 14a.

[0084] Furthermore, in the integrated floor slab, the vibration damping and absorption layer 14 is attached to the outer wall of the main body 11 as the outer wall vibration damping and absorption layer 14a, and its top elevation is flush with the top surface of the composite cast-in-place layer 2.

[0085] Please combine Figure 5 , Figure 6 In this embodiment, the panel layer 4 is constrained by the superimposed cast-in-place layer 2 through the tie member 12 and the main body 11, thereby achieving force transmission and preventing cracking of the panel layer 4. Specifically, the tie member 12 is installed on the main body 11 through a first mounting assembly. Further, the first mounting assembly includes a first washer 123 and a first nut 124. The first nut 124 is fixed to the first washer 123, and the first washer 123 is fixed to the vibration damping and absorbing layer 14 on the inner wall of the main body 11. One end of the tie member 12 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the first nut 124.

[0086] Furthermore, the tie member 12 includes a tie mounting section 121 and a tie anchor claw section 122. The tie mounting section 121 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The tie anchor claw section 122 is formed on the tie mounting section 121 and anchored to the panel layer 4.

[0087] In practical implementation, the anchor claw section 122 is formed by bending a steel bar and is welded to the anchor installation section 121. The anchor installation section 121 uses a straight steel bar with a threaded end. Correspondingly, a through hole is made in the main body 11 for the anchor installation section 121 to pass through. Inside the main body 11, the first gasket 123 and the first nut 124 are welded and fixed into a whole, and then temporarily attached to the vibration-damping and absorbing layer 14 on the inner wall of the main body 11. During installation, the holes in the main body 11, the first gasket 123, the first nut 124, and the vibration-damping and absorbing layer 14 correspond to each other. The vibration-damping and absorbing layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and sealing.

[0088] Preferably, the first gasket 123 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0089] Please combine Figure 9 , Figure 10 and Figure 11 In this embodiment, the vibration isolation tie box 1 further includes a bolted member 13, which is disposed on the main body 11 and bolted to the composite cast-in-place layer 2. Specifically, the bolted member 13 is installed on the main body 11 via a second mounting assembly. The second mounting assembly includes a second washer 133 and a second nut 134. The second nut 134 is fixed to the second washer 133, and the second washer 133 is fixed to the vibration damping and absorbing layer 14 on the inner wall of the main body 11. One end of the bolted member 13 is provided with a threaded section, which penetrates the main body 11 and the vibration damping and absorbing layer 14 and is threadedly connected to the second nut 134. Similarly, for the tie member 12, the bolted member 13 includes a bolted installation section 131 and a bolted anchor claw section 132. The bolted installation section 131 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The bolted anchor claw section 132 is formed on the bolted installation section 131 and anchored to the composite cast-in-place layer 2.

[0090] In practical implementation, the bolted anchor claw section 132 is formed by bending a steel bar and is welded to the bolted installation section 131. The bolted installation section 131 uses a straight steel bar with a threaded end. Correspondingly, a through hole is made on the side of the main body 11 for the bolted installation section 131 to pass through. Inside the main body 11, the second washer 133 and the second nut 134 are welded and fixed together to form a whole, and then temporarily adhered to the vibration-damping absorption layer 14 (i.e., the inner wall vibration-damping absorption layer 14b) on the inner wall of the main body 11. During installation, the holes on the side of the main body 11, the second washer 133, the second nut 134, and the vibration-damping absorption layer 14 correspond to each other. The vibration-damping absorption layer 14 is often made of elastic rubber, such as butyl rubber or EPDM rubber. It has a cross-shaped hole, which, when penetrated by the threaded section, provides stability and sealing.

[0091] Preferably, the second gasket 133 is a metal gasket or a high-strength composite material gasket, and the metal gasket can be a steel gasket.

[0092] In this embodiment, the tie anchor segment 122 and tie mounting segment 121 of the tie member 12, together with the main body 11 and the bolted anchor segment 132 and bolted mounting segment 131, transmit the force of the panel layer 4 to the composite cast-in-place layer 2. However, the ends of the tie mounting segment 121 and the bolted mounting segment 131 are disconnected in the vibration damping cavity, and the main body 11, which transmits the force, is attached to the vibration absorption layer 14 to absorb the vibration. The ends of the tie mounting segment 121 and the bolted mounting segment 131 are completely disconnected in the vibration damping cavity and do not transmit vibration; however, the panel layer 4 can be constrained by the composite cast-in-place layer 2 through the vibration isolation tie box 1 to prevent cracking.

[0093] The functional control index of the vibration damping and absorbing layer 14 is density, preferably 500~1000 kg / m³. 3 In practice, the density is less than 500 kg / m³. 3Excessive deformation can cause it to be flattened and "hardened," turning it into a "rigid body" that transmits vibrations directly downwards, reducing its damping effect; a density greater than 1000 kg / m³ 3 This can lead to insufficient deformation, turning the body into a "rigid body" that transmits vibrations directly downwards, reducing the damping effect.

[0094] S2 On-site Phase: Specifically, the prefabricated components are installed on-site. The vibration isolation tie box 1 is installed on the first functional layer 6 and cast in place to form a composite cast-in-place layer 2. The composite cast-in-place layer 2 is constrained by the prefabricated base slab layer 5 through shear members 7. The vibration isolation tie box 1 includes a main body 11, a vibration damping and absorption layer 14, and tie members 12. The main body 11 has a closed vibration damping chamber 10 inside, and the vibration damping and absorption layer 14 is attached to the main body 11. The main body 11 is embedded in the composite cast-in-place layer 2. One end of the tie member 12 is assembled and installed on the main body 11 and extends into the closed vibration damping chamber 10. The second functional layer 3 is laid on the composite cast-in-place layer 2, and the tie member 12 extends into the second functional layer 3. Then, a panel layer 4 is cast on the second functional layer 3. The panel layer 4 covers the tie member 12 and is constrained by the composite cast-in-place layer 2 through the vibration isolation tie box 1. In this embodiment, the composite cast-in-place layer 2 is cast in place after the composite cast-in-place layer steel mesh 21 is configured on site; similarly, the panel layer 4 is cast in place on the second functional layer 3 after the panel layer steel mesh 41 is configured on site.

[0095] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. An integrated floor slab with separate thermal insulation and sound insulation functions, comprising, from bottom to top, a precast base slab layer, a first functional layer, a composite cast-in-place layer, a second functional layer, and a panel layer; characterized in that, Also includes: Shear-resistant member, the shear-resistant member is disposed on the surface of the precast base slab layer, the shear-resistant member passes through the first functional layer and is connected to the composite cast-in-place layer; A vibration isolation tie box, comprising a main body, a vibration damping and absorbing layer, and a tie member; the main body has a closed vibration damping chamber inside, and the vibration damping and absorbing layer is attached to the main body; the main body is embedded in the composite cast-in-place layer, and one end of the tie member is assembled and installed on the main body and extends into the closed vibration damping chamber, while the other end passes through the second functional layer and is tied to the panel layer.

2. The integrated floor slab as described in claim 1, characterized in that: The vibration damping and absorption layer is attached to the inner wall and / or outer wall of the main body.

3. The integrated floor slab as described in claim 2, characterized in that: The vibration damping and absorbing layer is attached to the outer wall of the main body, and its top elevation is flush with the top surface of the composite cast-in-place layer.

4. The integrated floor slab as described in claim 2, characterized in that: The tie member is installed on the main body via a first mounting assembly; the first mounting assembly includes a first washer and a first nut, the first nut is fixed on the first washer, and the first washer is fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the tie member is provided with a threaded section, the threaded section of the tie member passes through the main body and the vibration damping and absorbing layer and is threadedly connected to the first nut.

5. The integrated floor slab as described in claim 4, characterized in that: The tie member includes a tie installation section and a tie anchor claw section. The tie installation section is assembled and installed on the main body and extends into the closed vibration damping chamber. The tie anchor claw section is formed on the tie installation section and anchored to the panel layer.

6. The integrated floor slab as described in claim 2, characterized in that: The vibration isolation tie box also includes a bolted member, which is disposed on the main body and bolted to the composite cast-in-place layer; one end of the bolted member extends into the closed vibration damping chamber and forms a blockage with the tie member.

7. The integrated floor slab as described in claim 6, characterized in that: The bolted connector is mounted to the main body via a second mounting assembly; the second mounting assembly includes a second washer and a second nut, the second nut being fixed to the second washer, and the second washer being fixed to the vibration damping and absorbing layer on the inner wall of the main body; one end of the bolted connector is provided with a threaded section, the threaded section of the bolted connector passing through the main body and the vibration damping and absorbing layer and being threadedly connected to the second nut.

8. The integrated floor slab as described in claim 7, characterized in that: The bolted component includes a bolted installation section and a bolted anchor claw section. The bolted installation section is assembled and installed on the main body and extends into the closed vibration damping chamber. The bolted anchor claw section is formed on the bolted installation section and anchored to the composite cast-in-place layer.

9. The integrated floor slab as described in claim 1, characterized in that: The main body is a hexahedron with an opening. A rear sealing plate is attached to the opening. The closed vibration damping chamber is implemented as a closed space enclosing the interior of the main body.

10. The integrated floor slab as described in claim 1, characterized in that: The first functional layer is a thermal insulation layer, and the second functional layer is a sound insulation layer; or, the first functional layer is a sound insulation layer, and the second functional layer is a thermal insulation layer.

11. The integrated floor slab as described in claim 1, characterized in that: The shear-resistant component is selected from one or more of the following combinations: C-channel steel, Z-shaped steel, H-shaped steel, steel pipe, truss, and concrete rib.

12. The integrated floor slab as described in claim 1, characterized in that: It also includes an intermediate structural layer, which is formed on the first functional layer. The first functional layer is sandwiched between the precast base plate layer and the intermediate structural layer. The shear-resistant member passes through the first functional layer and the intermediate structural layer and is tied to the composite cast-in-place layer. The precast base plate layer, the first functional layer, the intermediate structural layer, the composite cast-in-place layer, the second functional layer and the panel layer form a six-sided panel.

13. A method for producing an integrated floor slab with separate thermal insulation and sound insulation functions, characterized in that, Includes the following steps: In the prefabrication stage, the shear-resistant component, the prefabricated base plate layer, and the first functional layer are prefabricated and installed in the factory to form a prefabricated part, so that the shear-resistant component is placed on the surface of the prefabricated base plate layer to achieve surface reinforcement, and the shear-resistant component passes through the first functional layer and extends above the first functional layer. In the on-site phase, the prefabricated components are installed on-site. The vibration isolation tie box is installed on the first functional layer and cast-in-place to form a composite cast-in-place layer. The composite cast-in-place layer is constrained by the prefabricated base slab layer through the shear-resistant member. The vibration isolation tie box includes a main body, a vibration damping and absorption layer, and tie members. The main body has a closed vibration damping chamber inside, and the vibration damping and absorption layer is attached to the main body. The main body is embedded in the composite cast-in-place layer. One end of the tie member is assembled and installed on the main body and extends into the closed vibration damping chamber. A second functional layer is laid on the composite cast-in-place layer, and the tie member extends into the second functional layer. Then, a panel layer is cast on the second functional layer. The panel layer covers the tie member and is constrained by the composite cast-in-place layer through the vibration isolation tie box.

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