A fully assembled concrete module assembly

Abstract

The utility model discloses a full assembly type concrete module assembly component, including base module, be provided with wallboard, prefabricated beam and roof module on the base module, the equal distance distribution's hidden column is all poured to the one side outer wall of base module adjacent, and the one end of hidden column located base module is equipped with the equal distance distribution's X shape cross -steel bar net, one side outer wall welding of X shape cross -steel bar net inserts hidden column's H type steel core horizontal connecting key, the utility model discloses a taper sawtooth surface design of lock washer makes it and base module connecting end face close engagement, cooperate the positioning effect of washer groove, can prevent the fastening bolt rotating in the vibration, simultaneously, the X shape cross -steel bar net in hidden column and H type steel core horizontal connecting key welding form the collaborative energy dissipation system, and H type steel core horizontal connecting key penetrates the hidden column of adjacent base module, forms continuous lateral force resisting structure, and the crack resistance of node area is greatly promoted, and the energy dissipation capacity of node area is effectively improved compared with traditional component.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a fully prefabricated concrete modular assembly component. Background Technology

[0002] Prefabricated concrete modular assembly components are a prefabricated component combination system used in the construction field to achieve rapid construction of building structures. Its core is to prefabricate the building's foundation, wall panels, beams, roof, and other core structures into standardized modules in the factory in advance. After being transported to the construction site, they are assembled using connectors to reduce on-site pouring, welding, and other wet operations, thus shortening the construction cycle. It is one of the important directions of modern building industrialization and is widely used in the main structure construction of residential buildings, small public buildings, and other scenarios.

[0003] However, existing prefabricated concrete modular assembly components have significant shortcomings in practical use.

[0004] Firstly, the reliability of connections and seismic performance are insufficient: traditional components often use ordinary bolts for module connections without a dedicated anti-loosening structure. Under dynamic loads such as earthquakes, the bolts are prone to loosening due to vibration, leading to an increase in the gap between modules. At the same time, the modules lack a coordinated seismic reinforcement structure. For example, the connection between the foundation and the wall panel does not form a continuous lateral force resisting system. The concentrated force can easily cause cracks in the joint area, making it difficult to meet the seismic fortification requirements.

[0005] Secondly, the waterproofing performance is weak: the waterproofing of the component joints (such as the foundation joints and wall panel joints) relies solely on the later application of sealant. The sealant is exposed to the external environment for a long time, making it susceptible to aging and cracking due to temperature changes and rainwater erosion. Furthermore, without a physical water-guiding structure, rainwater can easily seep into the component along the joints, which not only affects indoor use but also corrodes the internal steel bars and connectors, shortening the overall service life of the component. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fully prefabricated concrete modular assembly component.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fully prefabricated concrete modular assembly includes a base module on which wall panels, precast beams, and a roof module are mounted. Each adjacent outer wall of the base module has evenly spaced concealed columns, and each concealed column has an evenly spaced X-shaped intersecting steel mesh at one end. H-shaped steel core horizontal connecting keys, which intersect the concealed columns, are welded to the outer wall of one side of the X-shaped intersecting steel mesh. A gasket groove is formed in the center of the H-shaped steel core horizontal connecting key on the primary outer wall of the base module. The inner wall of the gasket groove is secured by anti-loosening gasket bolts. The precast beam is fixed with fastening bolts, and chemical bolts are bonded to the top outer wall of the foundation module below the wall panel at equal intervals. The bottom outer wall of the wall panel is provided with pre-embedded sleeves at equal intervals above the chemical bolts. The two end faces of the precast beam are welded and fixed with pre-embedded steel plates to the internal steel bars, and the top end face of the wall panel is welded and fixed with wall top pre-embedded parts at the position of the precast beam's pre-embedded steel plate. The two ends of the internal steel bars of the roof module are welded and fixed with bolted connectors, and the bolted connectors cooperate with the bolt holes of the pre-embedded parts on the top of the wall panel and the precast beam.

[0008] As a further improvement of this utility model: the anti-loosening gasket adopts a conical sawtooth surface design, and the anti-loosening gasket is tightly engaged with the connection end face of the base module, and the size of the anti-loosening gasket is adapted to the size of the inner wall of the gasket groove.

[0009] As a further embodiment of this utility model: an L-shaped anchor bar is welded and fixed to the outer wall of the bottom of the embedded steel plate, and the outer wall of the L-shaped anchor bar perpendicular to the embedded steel plate is welded and fixed to the embedded part at the top of the wall.

[0010] As a further embodiment of this utility model: the inner wall of the pre-embedded sleeve is provided with internal threads, and the pre-embedded sleeve and the chemical bolt are fastened together by a nut.

[0011] As a further improvement of this utility model: a steel mesh is cast inside the wall panel, and vertical anchor bars are welded at equal intervals at the bottom of the steel mesh. The lower end of the vertical anchor bars extends out of the wall panel and is inserted into the grouting hole of the foundation module and fixed with high-strength mortar.

[0012] As a further improvement of this utility model: an inverted trapezoidal water guide groove is provided on the outer side of the joint of the basic module, the joint of the wall panel and the joint of the roof module, along the length of the joint, and the opening of the inverted trapezoidal water guide groove faces outward.

[0013] As a further embodiment of this utility model: the inner bottom of the inverted trapezoidal water guide channel is provided with a water-swellable water-stop strip along the joint length direction, and the opening of the inverted trapezoidal water guide channel is covered with a silicone sealant layer, which is tightly bonded to the surface of the components on both sides of the inverted trapezoidal water guide channel.

[0014] Compared with the prior art, this utility model provides a fully prefabricated concrete modular assembly component, which has the following advantages: Effectively improving connection reliability and seismic performance, solving the problems of bolt loosening and weak seismic resistance under dynamic loads in traditional components—the component uses the conical sawtooth surface design of the anti-loosening gasket to tightly engage with the connection end face of the foundation module. Combined with the positioning function of the gasket groove, it can prevent the fastening bolts from rotating during vibration. At the same time, the X-shaped cross steel mesh in the concealed column is welded with the H-shaped steel core horizontal connecting key to form a collaborative energy dissipation system. The H-shaped steel core horizontal connecting key runs through the concealed column of the adjacent foundation module to form a continuous lateral force resisting structure, which greatly improves the crack resistance of the node area. The energy dissipation capacity of the node area is effectively improved compared with traditional components, meeting the seismic requirements.

[0015] A triple waterproofing system is constructed to completely solve the problem of leakage at the joints of traditional components. The components are equipped with inverted trapezoidal water channels on the outside of the joints, which can quickly guide rainwater out and prevent rainwater from accumulating at the joints. The water-swellable sealing strip on the inside of the water channels can expand after contact with rainwater to fill the tiny gaps in the joints. The outer silicone sealant layer is tightly bonded to the surface of the components to prevent external rainwater and dust from entering. The three layers of protection work together to effectively prevent water leakage after the sealant ages, and extend the waterproofing effect throughout the entire life cycle of the components.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a fully prefabricated concrete modular assembly component proposed in this utility model; Figure 2 This is a side view of the overall structure of a fully prefabricated concrete modular assembly component proposed in this utility model; Figure 3 This is a schematic diagram of the overall disassembled structure of a fully prefabricated concrete modular assembly component proposed in this utility model; Figure 4 This is a first-view structural schematic diagram of a fully prefabricated concrete modular assembly component proposed in this utility model. Figure 5 This is a partial structural cross-sectional view of a fully prefabricated concrete modular assembly component proposed in this utility model.

[0018] In the diagram: 1. Basic module; 2. Concealed column; 3. X-shaped cross steel mesh; 4. H-shaped steel core horizontal connecting key; 5. Gasket groove; 6. Anti-loosening gasket; 7. Fastening bolt; 8. Chemical bolt; 9. Wall panel; 10. Embedded sleeve; 11. Steel mesh; 12. Vertical anchor bar; 13. Precast beam; 14. Embedded steel plate; 15. Embedded parts at the top of the wall; 16. L-shaped anchor bar; 17. Roof module; 18. Bolted connector; 19. Embedded parts on beam; 20. Inverted trapezoidal water guide channel; 21. Water-swellable waterstop strip; 22. Silicone sealant layer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1:

[0020] A fully prefabricated concrete modular assembly component, as described in this embodiment, Figure 1-5 As shown, the system includes a basic module 1, on which wall panels 9, precast beams 13, and a roof module 17 are installed. Each adjacent outer wall of the basic module 1 is reinforced with equally spaced concealed columns 2. At one end of each concealed column 2 located within the basic module 1, equally spaced X-shaped intersecting steel mesh 3 is provided. H-shaped steel core horizontal connecting keys 4, which intersect the concealed columns 2, are welded to one side of the outer wall of the X-shaped intersecting steel mesh 3. A gasket groove 5 is formed in the middle of the H-shaped steel core horizontal connecting key 4 on the primary outer wall of the basic module 1. A fastening bolt 7 is threadedly fixed to the inner wall of the gasket groove 5 by anti-loosening washers 6. Chemical bolts 8 are bonded at equal intervals on the top outer wall of the basic module 1 below the wall panel 9. Pre-embedded sleeves 10 are provided at equal intervals on the bottom outer wall of the wall panel 9 above the chemical bolts 8. Pre-embedded steel plates 14 are welded and fixed to the end faces of the precast beam 13 and the internal steel bars. Pre-embedded parts 15 are welded and fixed to the top end face of the wall panel 9 at the position corresponding to the pre-embedded steel plates 14 of the precast beam 13. Bolted connectors 18 are welded and fixed to both ends of the internal steel bars of the roof module 17. The bolted connectors 18 are matched with the bolt holes of the pre-embedded parts at the top of the wall panel 9 and the precast beam 13. Effectively improving connection reliability and seismic performance, solving the problems of bolt loosening and weak seismic resistance under dynamic loads in traditional components—the component uses the conical sawtooth surface design of the anti-loosening gasket 6 to tightly engage with the connection end face of the foundation module 1. Combined with the positioning function of the gasket groove 5, it can prevent the fastening bolt 7 from rotating during vibration. At the same time, the X-shaped cross steel mesh 3 in the hidden column 2 is welded with the H-shaped steel core horizontal connecting key 4 to form a collaborative energy dissipation system. The H-shaped steel core horizontal connecting key 4 runs through the hidden column 2 of the adjacent foundation module to form a continuous lateral force resisting structure, which greatly improves the crack resistance of the node area. After testing, the energy dissipation capacity of the node area is effectively improved compared with traditional components, meeting the seismic requirements.

[0021] The anti-loosening gasket 6 adopts a conical sawtooth surface design, and the anti-loosening gasket 6 is tightly engaged with the connection end face of the base module 1. The size of the anti-loosening gasket 6 is adapted to the inner wall size of the gasket groove 5. The bottom outer wall of the pre-embedded steel plate 14 is welded and fixed with an L-shaped anchor bar 16, and the outer wall of the L-shaped anchor bar 16 perpendicular to the pre-embedded steel plate 14 is welded and fixed to the pre-embedded part 15 on the top of the wall. The inner wall of the pre-embedded sleeve 10 is provided with internal threads, and the pre-embedded sleeve 10 and the chemical bolt 8 are fastened together by a nut.

[0022] The wall panel 9 is filled with a steel mesh 11, and the bottom of the steel mesh 11 is welded with equally spaced vertical anchor bars 12. The lower end of the vertical anchor bars 12 extends out of the wall panel 9 and is inserted into the grouting hole of the foundation module 1 and fixed with high-strength mortar. The inner bottom of the inverted trapezoidal water guide channel 20 is bonded with a water-swellable water-stop strip 21 along the joint length direction, and the opening of the inverted trapezoidal water guide channel 20 is covered with a silicone sealant layer 22, which is tightly bonded to the surface of the components on both sides of the inverted trapezoidal water guide channel 20.

[0023] Working principle: The operation process of this fully prefabricated concrete modular assembly component revolves around five steps: "foundation positioning - wall panel installation - beam connection and roof covering - waterproofing and sealing", as detailed below: Assembly of basic module 1: First, transport the three basic modules 1 to the foundation pit at the construction site, adjust their positions to align the hidden columns 2 of adjacent modules, insert the horizontal connecting key 4 of the H-shaped steel core into the adjacent hidden columns 2, put the anti-loosening shims 6 into the shim groove 5, and tighten the fastening bolts 7 through the H-shaped steel core and the anti-loosening shims 6 to the specified torque so that the basic module 1 forms a whole. The X-shaped cross steel mesh 3 in the hidden column 2 cooperates with the H-shaped steel core to construct the foundation seismic frame. Wall panel 9 installation: Hoist the wall panel 9 above the foundation module 1, align the pre-embedded sleeve 10 at the bottom of the wall panel 9 with the chemical bolt 8 at the top of the foundation module 1, and tighten it with nuts after insertion. At the same time, ensure that the vertical anchor bar 12 at the bottom of the wall panel 9 is inserted into the grouting hole of the foundation module 1, inject high-strength mortar into the hole and cure it to achieve double fixation between the wall panel 9 and the foundation module 1, transfer vertical load and limit horizontal displacement. Connection of precast beam 13: The precast beam 13 is hoisted to the top of the wall panel 9, so that the pre-embedded steel plate 14 at the end of the beam is attached to the wall top pre-embedded part 15 at the top of the wall panel 9. The precast beam 13 is initially fixed by passing bolts through the bolt holes of both. Then, the two ends of the L-shaped anchor bar 16 are welded to the pre-embedded steel plate 14 and the wall top pre-embedded part 15 respectively to complete the rigid connection between the precast beam 13 and the wall panel 9, forming a transverse force-bearing system. Roof module 17 covering: four roof modules 17 are hoisted sequentially onto the precast beam 13, and the bolted connectors 18 at both ends of the roof module 17 are aligned with the bolt holes of the embedded parts 19 on the top of the precast beam 13. The bolts are inserted and tightened to ensure that the roof modules 17 are tightly spliced ​​to form a top covering structure and transfer the roof load to the precast beam 13. Waterproof sealing treatment: After cleaning the surface dust on the outside of all joints of the base module 1, wall panel 9, and roof module 17, first adhere the water-swellable waterstop strip 21 to the bottom of the inner side of the inverted trapezoidal water channel 20, and then apply the silicone sealant layer 22 along the opening of the water channel. After the sealant layer cures, rainwater can be discharged through the water channel. A small amount of rainwater seeps in and triggers the waterstop strip to expand and seal. The sealant layer prevents external water from entering, and finally achieves the effect of full assembly and full protection of the components. Example 2:

[0024] A fully prefabricated concrete modular assembly component, such as Figure 1-5 As shown, this embodiment makes the following additions based on embodiment 1: an inverted trapezoidal water guide groove 20 is provided on the outer side of the joint of the basic module 1, the joint of the wall panel 9 and the joint of the roof module 17 along the length of the joint, and the opening of the inverted trapezoidal water guide groove 20 faces outward.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fully prefabricated concrete modular assembly component, comprising a foundation module (1), characterized in that, The foundation module (1) is provided with wall panels (9), precast beams (13) and roof modules (17). The outer walls of adjacent sides of the foundation module (1) are cast with equally spaced hidden columns (2), and the hidden columns (2) at one end of the foundation module (1) are provided with equally spaced X-shaped cross steel mesh (3). The outer wall of one side of the X-shaped cross steel mesh (3) is welded with H-shaped steel core horizontal connecting keys (4) that pass through the hidden columns (2), and the middle of the H-shaped steel core horizontal connecting key (4) is located on the outer wall of the foundation module (1) with a gasket groove (5). The inner wall of the gasket groove (5) is fixed with fastening bolts (7) by anti-loosening gaskets (6), and the foundation module (1) Chemical bolts (8) are bonded at equal intervals on the top outer wall below the wall panel (9). Pre-embedded sleeves (10) are provided at equal intervals on the bottom outer wall above the chemical bolts (8). Pre-embedded steel plates (14) are welded and fixed to the end faces of the precast beam (13) and the internal steel bars. Pre-embedded parts (15) are welded and fixed to the top end face of the wall panel (9) at the position of the pre-embedded steel plate (14) of the precast beam (13). Bolted connectors (18) are welded and fixed to both ends of the internal steel bars of the roof module (17). The bolted connectors (18) are matched with the bolt holes of the pre-embedded parts on the top of the wall panel (9) and the precast beam (13).

2. The fully prefabricated concrete modular assembly component according to claim 1, characterized in that, The anti-loosening gasket (6) adopts a conical sawtooth surface design, and the anti-loosening gasket (6) is tightly engaged with the connection end face of the base module (1). The size of the anti-loosening gasket (6) is adapted to the inner wall size of the gasket groove (5).

3. The fully prefabricated concrete modular assembly component according to claim 1, characterized in that, The bottom outer wall of the pre-embedded steel plate (14) is welded and fixed with an L-shaped anchor bar (16), and the outer wall of the L-shaped anchor bar (16) perpendicular to the pre-embedded steel plate (14) is welded and fixed on the pre-embedded part (15) at the top of the wall.

4. The fully prefabricated concrete modular assembly component according to claim 1, characterized in that, The inner wall of the pre-embedded sleeve (10) is provided with internal threads, and the pre-embedded sleeve (10) and the chemical bolt (8) are fastened together by a nut.

5. The fully prefabricated concrete modular assembly component according to claim 1, characterized in that, The wall panel (9) is filled with a steel mesh (11), and the bottom of the steel mesh (11) is welded with vertical anchor bars (12) distributed at equal intervals. The lower end of the vertical anchor bar (12) extends out of the wall panel (9) and is inserted into the grouting hole of the foundation module (1) and fixed with high-strength mortar.

6. The fully prefabricated concrete modular assembly component according to claim 1, characterized in that, On the outside of the joints of the basic module (1), the wall panel (9), and the roof module (17), an inverted trapezoidal water channel (20) is provided along the length of the joint, and the opening of the inverted trapezoidal water channel (20) faces outward.

7. The fully prefabricated concrete modular assembly component according to claim 6, characterized in that, The inner bottom of the inverted trapezoidal water guide channel (20) is bonded with a water-swellable water-stop strip (21) along the joint length direction, and the opening of the inverted trapezoidal water guide channel (20) is covered with a silicone sealant layer (22), which is tightly bonded to the surface of the components on both sides of the inverted trapezoidal water guide channel (20).

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