Modular dwelling house system with concrete wallboard structure

Abstract

The invention discloses a concrete wallboard structure modular residence system, which is characterized in that a multi-layer concrete wallboard structure residence is divided into a plurality of building modules, the building modules are prefabricated and then are installed on site, the modules are connected in a dry mode, floor and floor slab connection, roof and floor slab connection and outer wall connection, and the inner wall connection method adopts high-strength bolt connection. The outer wall is connected with the foundation through bolts, the inner wall is connected with the foundation through bolts, on-site secondary concrete pouring is not needed, the construction speed is high, maintenance is easy, and cyclic utilization of materials is facilitated. A steel plate is pre-buried in a concrete plate or a wall at the joint connecting position, a sleeve is pre-buried at the connecting position, the pre-buried sleeve and the pre-buried steel plate are welded into a whole, it is guaranteed that after the high-strength bolts apply pre-tightening force, joint force transmission is reasonable, and the strength of the concrete plate or the concrete wall meets the requirement. The connection method meets the requirements of reasonable structure, safe and reliable nodes and convenient construction, and the whole formed after connection is safe, applicable, economical and reasonable. In the design stage, the connection nodes are subjected to standardization and generalization merging, so that the node manufacturing and installing procedures are simplified, the construction efficiency is improved, and the large application value is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of modular buildings, and in particular to a modular residential system with a concrete wall panel structure. Background Art

[0002] Modular construction is a construction method that divides a building into modular units. These units complete the construction processes such as structure, decoration, water and electricity, equipment and pipelines in the factory, and then are quickly assembled into the whole building on site through reliable connection technology. It is highly engineered and standardized, with the advantages of reliable quality, high efficiency and environmental friendliness, and is gradually being used more and more widely.

[0003] Modular building design is quite different from traditional design and requires intensive pre-project planning and work. The module division and connection method are key factors affecting the cost and reliability of the entire modular building. In modular design, unlike ordinary prefabricated buildings, multiple functions such as structure, electromechanical and decoration need to be integrated into one module. The size and shape of the module are limited by the use function, production, transportation and on-site installation conditions, and need to be determined by comprehensive consideration. In addition, the module requires a certain degree of standardization to facilitate large-scale production and assembly.

[0004] The connection method of modular buildings is the key link to ensure the integrity of the structure. The connection nodes should have reliable force transmission, reasonable structure and convenient construction. Depending on whether secondary pouring is required on site, the node connection methods are divided into two types: wet connection and dry connection. Wet connection is a method of connecting components by reserving steel bars on site and pouring concrete or grouting for the second time. It has been proven in practice that wet connection can provide good overall performance, comparable to cast-in-place structures, but this connection method has the disadvantages of complex construction process, difficult quality control and long construction period. Dry connection mainly adopts welding or bolt connection technology, and does not require secondary pouring on site. Dry connection has fast construction speed, convenient maintenance, and is conducive to the recycling of materials, which fully reflects the trend of building industrialization. Therefore, modern modular buildings prefer dry connection.

[0005] However, the degree of modular building integration of concrete structures in my country is still low. Most modular buildings still use ordinary assembly methods, transporting individual components (such as beams, columns, walls, stairs, etc.) prefabricated in the factory to the site for assembly, and then carrying out mechanical and electrical construction and decoration on the basis of the on-site assembly building, which weakens the industrialization advantage of modular buildings. Limited by the maturity of technology, dry connections are rarely used in my country. And the scope and performance of dry connections of prefabricated components are limited. For example, there are methods for connecting prefabricated floor slabs and floor slabs, but they are not equally strong, which limits the development and application of modular building integration technology. Summary of the invention

[0006] Purpose of the invention: In order to solve the problems existing in the prior art, the present invention provides a modular residential system with a concrete wall panel structure, which is convenient to construct, safe and reliable, improves structural rigidity and bearing capacity, and reduces on-site construction workload.

[0007] Technical solution: To achieve the above-mentioned purpose, the present invention can adopt the following technical solution: a modular residential system with concrete wall panel structure, which divides a multi-story concrete wall panel structure house into multiple building modules for prefabrication and then on-site installation, and the node connection types include floor slab connection, roof slab connection, exterior wall connection, interior wall connection, exterior wall and foundation connection, and interior wall and foundation connection; wherein the floor slab connection connects multiple building modules left and right and up and down, and the floor slab connection is connected by a combination structure of high-strength bolts and steel connecting plates; the top roof slab connection is a roof prefabricated panel layer superimposed on the top cast-in-place concrete layer, and the roof prefabricated panel layer is connected by a combination of high-strength bolts and steel connecting plates; part of the steel bars of the cast-in-place layer are pre-buried in the roof prefabricated panel layer; the exterior wall connection and the interior wall connection are connected by a combination structure of high-strength bolts and steel connecting plates; the exterior wall and foundation connection and the interior wall and foundation connection are connected by a combination structure of bolts and steel connecting plates.

[0008] Furthermore, the above concrete wall panel structure modular residential structure divides a 3-story concrete wall panel structure house into 15 building modules for prefabrication and then on-site installation. Considering the limitations of transportation and installation conditions, the width of a single module does not exceed 4.2m, the height does not exceed 3.5m, and the length does not exceed 7.8m. Considering the waterproof requirements of the bathroom, the entire bathroom is divided into one module.

[0009] Furthermore, in a single building module, building decoration and electromechanical pipelines are pre-installed, and the roof slab and floor slab are used for interior decoration and electromechanical pipeline layout.

[0010] Furthermore, each building module has floor slabs at the top and bottom to facilitate modular design and construction of building decoration and mechanical and electrical installation, and the building floor slabs are double-layer slabs.

[0011] Furthermore, the load-bearing walls and internal partitions in each building module are prefabricated into the module, including insulation materials, windows, doors and finishing layers.

[0012] Furthermore, part of the side walls of the building module are open. In order to ensure the strength, rigidity and stability requirements of the module with partial side wall openings during transportation and installation, temporary steel supports are provided at the side wall openings.

[0013] Furthermore, the floor slab in the floor slab connection is a double-layer plate including an upper module bottom plate and a lower module top plate on the left and right sides, and the connection between the double-layer plates adopts a dry high-strength bolt connection node, and a floor slab groove is reserved at the module connection of the floor slab, and the high-strength bolts are connected to the steel connecting plate in the floor slab groove; the upper and lower plate surfaces of the upper module bottom plate and the lower module top plate in the floor slab groove are both provided with embedded steel plates, and the embedded steel plates have holes at the high-strength bolt connection locations, and embedded sleeves are provided in the upper module bottom plate and the lower module top plate at the high-strength bolt connection locations, and the embedded sleeves and the embedded steel plates are welded at the junction to form a whole; a plurality of anchor bars, at least 6 bars, are embedded at the connection between the upper and lower plate surfaces of the floor slab; and the anchor bars are welded to the upper and lower embedded steel plates.

[0014] Furthermore, when the floor slabs are connected to the left and right adjacent slabs, the steel connecting plate spans over the left and right adjacent slabs in the slab grooves, and the high-strength bolts pass through the steel connecting plate at the connection between the left and right adjacent slabs, and the steel plate and sleeve are embedded; the high-strength bolts apply pre-pressure; a 10m horizontal gap is left at the connection between the left and right adjacent slabs, and the gap is filled with rubber gaskets.

[0015] Furthermore, in the roof floor connection, a floor groove is left at the lower part of the roof prefabricated panel layer, and embedded steel plates are provided on the upper and lower surfaces of the roof prefabricated panel layer at the floor groove, and the plane size of the embedded steel plate matches the floor groove. The embedded steel plate has a hole at the high-strength bolt connection, and an embedded sleeve is provided at the high-strength bolt connection in the roof prefabricated panel layer. The embedded sleeve and the embedded steel plate are welded at the junction to form a whole; each layer of the plate is embedded with a plurality of anchor bars, at least 6 bars, at the connection; the anchor bars are welded to the upper and lower embedded steel plates.

[0016] Furthermore, in the connection of the exterior wall, a wall notch is left on the indoor side of the concrete wall, and the concrete wall is provided with embedded steel plates on both the inner and outer sides of the wall notch, the embedded steel plate has a hole at the connection of the high-strength bolt, and an embedded sleeve is provided at the connection of the high-strength bolt in the concrete wall, and the embedded sleeve and the embedded steel plate are welded at the junction to form a whole; the concrete wall embeds a plurality of anchor bars, at least 6, within the range of the embedded steel plate; the anchor bars are welded to the upper and lower embedded steel plates; the steel connection plate spans the concrete walls of the upper and lower modules, and the high-strength bolts apply pre-pressure, pass through the steel connection plate, the embedded steel plate and the sleeve, to ensure the structural rigidity and bearing capacity of the exterior wall connection. The exterior wall decorative surface is constructed on site to ensure that the exterior wall meets the waterproof requirements.

[0017] Furthermore, in the external wall connection, floor notches are reserved at the floor and floor slabs at a horizontal distance of 1.5-2 times the wall thickness from the concrete wall, and the upper and lower plate surfaces of the upper module bottom plate and the lower module top plate in the floor notches are provided with embedded steel plates, the embedded steel plates have holes at the high-strength bolt connection, and sleeves are embedded in the plate at the high-strength bolt connection, and the embedded sleeves and the embedded steel plates are welded at the junction to form a whole, and the module bottom plate and the top plate are each embedded with multiple anchor bars within the node range, at least 6; the anchor bars are welded to the upper and lower embedded steel plates; the high-strength bolts pass through the steel connecting plates, embedded steel plates and sleeves at the connection of the left and right floor slabs; the high-strength bolts apply preload to ensure the rigidity and bearing capacity of the floor slab connection. In the internal wall connection, floor notches are reserved on the left and right floor slabs at a horizontal distance of 1 times the wall thickness from the concrete wall, and the connection method in the floor notches is the same as the connection method of the external wall connection on the floor slab.

[0018] Furthermore, in the connection between the exterior wall and the foundation, a floor notch is left at the intersection of the module bottom plate and the concrete root wall, and the module bottom plate is provided with embedded steel plates on both the upper and lower sides of the floor notch, and the embedded steel plates have holes at the high-strength bolt connection, and sleeves are embedded at the high-strength bolt connection of the module bottom plate. The embedded sleeves and the embedded steel plates are welded at the intersection to form a whole, and the module bottom plate has multiple anchor bars embedded in the embedded steel plate, at least 6, and the anchor bars are welded to the upper and lower embedded steel plates. ; Accordingly, the foundation is provided with an embedded steel plate at the connection, an internal threaded sleeve is embedded at the high-strength bolt connection, an anchor plate is embedded at the lower end of the embedded sleeve in the foundation, the anchor plate is welded to the embedded internal threaded sleeve, and the embedded length of the embedded internal threaded sleeve in the foundation must meet the anchoring requirements of the concrete structure; the high-strength bolt is connected to the foundation through the steel connecting plate, the embedded steel plate and the embedded sleeve, and the high-strength bolt is rotated into the embedded internal threaded sleeve of the foundation to ensure that the force of the upper structure can be transmitted to the foundation.

[0019] Furthermore, in the connection between the inner wall and the foundation, a floor groove is left at the intersection of the module bottom plate and the root of the concrete wall, and the connection method in the floor groove is the same as the connection method between the outer wall and the foundation.

[0020] Beneficial effects: The present invention has the following advantages:

[0021] (1) The module division of the present invention follows the principles of building module, few specifications, multiple combinations, and reasonable stress of single module structure on the basis of meeting functional requirements, so as to realize the modularization, serialization and generalization of module units.

[0022] (2) The size of the building module unit in the present invention is determined comprehensively based on factors such as the building function, production equipment, transportation conditions, hoisting equipment, and on-site construction and installation conditions of the modular building. From the source of design, the reuse rate of the template during the production of the module factory is improved, the types of processed and manufactured modules are reduced, the factory production efficiency is improved, and the cost is saved; the structure, building decoration, and electromechanical pipelines of the building module unit are prefabricated in the factory, ensuring the accuracy and consistency of the size.

[0023] (3) The module connection method of the present invention adopts dry connection, and the floor slab connection, roof slab connection, exterior wall connection, and interior wall connection adopt a connection method of a combination of high-strength bolts and steel connecting plates; the exterior wall and foundation connection and the interior wall and foundation connection adopt a connection method of a combination of bolts and steel connecting plates. There is no need for secondary pouring of concrete on site, the construction speed is fast, maintenance is easy, and it is conducive to the recycling of materials. The innovative use of high-strength bolts between concrete modules facilitates construction and can ensure the rigidity and bearing capacity of the structure at the connection.

[0024] (4) The node method of the present invention meets the requirements of reasonable structure, safe and reliable nodes, convenient construction, and overall safety, applicability, economy, and rationality after connection. The connection nodes are standardized and universally merged during the design stage, thereby simplifying the node production and installation process and improving construction efficiency.

[0025] (5) Due to waterproofing requirements, the roof slab of the present invention adopts a method of superimposing a prefabricated slab on a top cast-in-place concrete layer, wherein part of the steel bars of the cast-in-place layer are pre-embedded in the prefabricated slab layer to form a composite slab effect and reduce the workload of on-site steel bar laying.

[0026] (6) The present invention adopts a temporary steel support method to ensure the strength, rigidity and stability requirements of the module unit during hoisting and installation. The method is reliable and convenient for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a three-dimensional structure of a modular residential structure building in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of a three-dimensional box body split from the building modules of the first floor in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of a three-dimensional box body split into two layers of building modules in an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of a three-dimensional box body of a building module splitting a roof layer in an embodiment of the present invention;

[0031] Figure 5 This is a schematic plan view of the splitting of the building modules of the first floor in an embodiment of the present invention;

[0032] Figure 6 It is a schematic plan view of the splitting of the building modules of the second floor in an embodiment of the present invention;

[0033] Figure 7 It is a schematic plan view of the splitting of the building modules of the roof layer in an embodiment of the present invention;

[0034] Figure 8 is a schematic diagram of a three-dimensional structure of a single building module in an embodiment of the present invention;

[0035] Fig. 9 is a floor connection plan view in an embodiment of the present invention;

[0036] Fig.10 Detailed diagram of the joints of the modular floor slabs of the present invention;

[0037] Fig.11 For Fig.10 AA cross-sectional view;

[0038] Fig.12 For Fig.10 A cross-sectional view along the BB direction;

[0039] Fig.13 A three-dimensional schematic diagram of the embedded steel plates and sleeves in the modular floor slab of the embodiment;

[0040] Fig.14 A detailed view of the nodes of the modular roof slab connection of the embodiment;

[0041] Fig.15 For Fig.14 The cross-sectional view along CC direction;

[0042] Fig.16 For Fig.14 DD-direction cross-sectional view;

[0043] Fig.17 A detailed diagram of the node connection of the module exterior wall of the embodiment;

[0044] Fig.18 For Fig.17 EE-direction cross-sectional view;

[0045] Fig.19 For Fig.17 FF-direction cross-sectional view;

[0046] Fig. 20 A detailed diagram of the node connection of the inner wall of the module of the embodiment;

[0047] Fig.21 For Fig. 20 The cross-sectional view along the GG direction;

[0048] Fig. 22 For Fig. 20 A cross-sectional view taken along the HH direction;

[0049] Fig.23 A detailed diagram of the connection between the module exterior wall and the foundation of the embodiment;

[0050] Fig.24 For Fig.23 A cross-sectional view taken along the JJ axis;

[0051] Fig.25 A detailed diagram of the connection between the inner wall of the module and the foundation of the embodiment;

[0052] Fig.26 For Fig.25 Cross-sectional view along the KK direction.

[0053] Figure numerals: 101-modular building, 1-building module, 2-upper module base plate, 3-lower module top plate, 4-temporary steel support, 5-floor slab notch, 6-high-strength bolts, 7-steel connecting plate, 8-embedded steel plate, 9-embedded sleeve, 10-anchor bar, 11-rubber gasket, 12-roof prefabricated panel, 13-roof cast-in-place layer, 14-concrete wall, 15-exterior wall decoration surface, 16-wall notch, 17-foundation, 18-bolt, 19-outdoor finished surface, 20-concrete cushion, 21-anchor plate, 22-natural ground. DETAILED DESCRIPTION

[0054] In order to make the technical features and effects achieved by the present invention easy to understand, the following embodiments further illustrate the structure of the modular house with concrete wall panels and the connection method thereof in detail in conjunction with the accompanying drawings.

[0055] Example

[0056] Please refer to Figure 1 FIG. 1 is a three-dimensional structural diagram of a modular building 101 using the modular building residential structural system disclosed in the present invention. Figure 2-4 Schematic diagrams of the three-dimensional box body for module decomposition of the first floor, the second floor and the roof layer respectively; a total of 15 building modules 1 are included, wherein the first floor includes 7 building modules 1, the second floor includes 6 building modules 1, and the roof layer includes 2 building modules 1.

[0057] In this embodiment, the three-story concrete wall panel structure house is divided into 15 building modules for prefabrication and then installed on site. Considering the limitations of transportation and installation conditions, the width of a single module does not exceed 4.2m, the height does not exceed 3.5m, and the length does not exceed 7.8m. Considering the waterproof requirements of the bathroom, the entire bathroom is divided into one module. Ensure that the bathroom floor and wall are prefabricated as an integral structure in the factory and do not need to be assembled on site. For details, please refer to Figure 5-7 As shown, there are schematic diagrams of the module splitting plan of the first floor, the second floor and the roof layer.

[0058] The node connection types of the modular building residential structure system in this embodiment include floor-to-floor connection, roof-to-floor connection, exterior wall connection, interior wall connection, exterior wall and foundation connection, and interior wall and foundation connection; wherein the floor-to-floor connection connects multiple building modules 1 up and down, and the floor-to-floor connection is connected by a combination structure of high-strength bolts 6 and steel connecting plates 7.

[0059] like Figure 8-Figure 13 As shown, Figure 8 It is a three-dimensional structural schematic diagram of a single building module 1; the floor slab in the floor slab connection is a double-layer plate including an upper module bottom plate 3 and a lower module top plate 2, which is convenient for integrating electromechanical and decoration into the building module 1. Part of the side wall is in an open form. In order to ensure the strength, rigidity and stability requirements of the part of the side wall opening module during transportation and installation, a temporary steel support 4 is set at the side wall opening; Fig. 9 This is a schematic diagram of the floor slab connection plan structure. Fig.10 is a schematic diagram of the connection node structure. Fig.11 and Fig.12 They are Fig.10 AA and BB section views; the connection between the double-layer plates adopts dry high-strength bolts 6 to connect the nodes, and a floor notch 5 is left at the module connection of the floor slab, and the high-strength bolts 6 are connected to the steel connecting plate 7 in the floor notch 5; and the upper and lower plate surfaces of the upper module bottom plate 3 and the lower module top plate 2 in the floor notch 5 are both provided with embedded steel plates 8, and the embedded steel plates 8 have holes at the connection of the high-strength bolts 6, and the upper module bottom plate 3 and the lower module top plate 2 are provided with embedded sleeves 9 at the connection of the high-strength bolts 6, and the embedded sleeves 9 and the embedded steel plates 8 are welded at the junction to form a whole; 6 anchor bars 10 are embedded at the connection of the upper and lower plate surfaces of the floor slab, and the anchor bars 10 are welded to the upper and lower embedded steel plates 8. For details, please refer to Fig.13 Shown is a three-dimensional schematic diagram of the embedded steel plates and sleeves in the modular floor slab.

[0060] In addition, when the floor slab is connected to the left and right adjacent slabs, the steel connecting plate 7 spans over the left and right adjacent slabs in the slab groove 5, and the high-strength bolts 6 pass through the steel connecting plate 7 at the connection between the left and right adjacent slabs, and the steel plate 8 and the embedded sleeve 9 are pre-embedded; the high-strength bolts 6 apply pre-pressure; a 10m horizontal gap is left at the connection between the left and right adjacent slabs, and the gap is filled with a rubber gasket 11.

[0061] Please refer to Figure 14-16As shown, there are node details of the module roof floor connection of the embodiment; and cross-sectional views in CC and DD directions; the top roof floor connection is a roof prefabricated panel layer 12 superimposed on a top concrete roof cast-in-place layer 13, and the connection method of the roof prefabricated panel layer 12 is a combination of high-strength bolts 6 and steel connecting plates 7; part of the steel bars of the roof cast-in-place layer 13 are pre-embedded in the roof prefabricated panel layer 12.

[0062] In the roof floor connection, the roof prefabricated board layer 12 has a floor groove 5 at the bottom, and the roof prefabricated board layer 12 is provided with embedded steel plates 8 on both the upper and lower surfaces at the floor groove 5. The embedded steel plates 8 match the plane size of the floor groove 5. The embedded steel plates 8 have holes at the connection of the high-strength bolts 6. The roof prefabricated board layer 12 is provided with embedded sleeves 9 at the connection of the high-strength bolts 6. The embedded sleeves 9 and the embedded steel plates 8 are welded at the junction to form a whole; each layer of the board is embedded with 6 anchor bars 10 at the connection, and the anchor bars 10 are welded to the upper and lower embedded steel plates 8. The steel connecting plate 7 spans the left and right floor slabs, and the high-strength bolts 6 pass through the steel connecting plate 7, the embedded steel plate 8 and the embedded sleeve 9 at the connection of the left and right floor slabs. The left and right building roof prefabricated board layers 12 leave a 10mm horizontal gap at the connection, and the gap is filled with rubber gaskets 11.

[0063] The outer wall connection and the inner wall connection are connected by a combination structure of high-strength bolts 6 and steel connection plates 7; the outer wall and foundation connection and the inner wall and foundation connection are connected by a combination structure of bolts 18 and steel connection plates 7.

[0064] Please refer to Figure 17-Figure 19 As shown, the node details of the module exterior wall connection of the embodiment and the cross-sectional views in the EE direction and the FF direction are sequentially shown; in the exterior wall connection, a wall notch 16 is left on the indoor side of the concrete wall 14, and the concrete wall is provided with embedded steel plates 8 on both the inner and outer sides of the wall notch 16, and the embedded steel plates 8 have holes at the connection of the high-strength bolts 6, and embedded sleeves 9 are provided at the connection of the high-strength bolts 6 in the concrete wall 14, and the embedded sleeves 9 and the embedded steel plates 8 are welded at the intersection to form a whole; the concrete wall 14 embeds 6 anchor bars 10 within the embedded steel plates 8; the anchor bars 10 are welded to the upper and lower embedded steel plates 8; the steel connecting plate 7 spans the upper and lower concrete walls 14, and the high-strength bolts 6 apply pre-pressure, pass through the steel connecting plate 7, the embedded steel plate 8 and the embedded sleeves 9, to ensure the structural rigidity and bearing capacity of the exterior wall connection. The exterior wall decorative surface 15 is constructed on site to ensure that the exterior wall meets the waterproof requirements.

[0065] In the exterior wall connection, a floor notch 5 is left at a horizontal distance of 1.5-2 times the wall thickness between the floor and the concrete wall 14. The upper and lower plate surfaces of the module bottom plate and the top plate in the floor notch 5 are provided with embedded steel plates 8. The embedded steel plates 8 have holes at the connection of the high-strength bolts 6. The plate has embedded sleeves 9 at the connection of the high-strength bolts 6. The embedded sleeves 9 and the embedded steel plates 8 are welded at the junction to form a whole. The module bottom plate and the top plate each have 6 embedded anchor bars 10 within the node range; the anchor bars 10 are welded to the upper and lower embedded steel plates 8; the high-strength bolts 6 pass through the steel connecting plates 7, embedded steel plates 8 and embedded sleeves 9 at the connection of the left and right floor plates; the high-strength bolts 6 apply pre-pressure to ensure the rigidity and bearing capacity of the floor connection.

[0066] In the inner wall connection, floor notches 5 are left on the left and right floor slabs at a horizontal distance of 1 times the wall thickness from the concrete wall 14. The connection method in the floor notches 5 is the same as the connection method of the outer wall on the floor slab. Figure 20-22 As shown, there are node details of the module inner wall connection and cross-sectional views in the GG and HH directions.

[0067] Please refer to Figure 23-24 As shown, they are the node details of the connection between the module outer wall and the foundation and the cross-sectional view in the JJ direction; the foundation 17 is arranged on the concrete cushion layer 20, and the natural ground 22 is below the concrete cushion layer 20; in the connection between the outer wall and the foundation, a floor groove 5 is left at the intersection of the module bottom plate and the concrete root wall, and the module bottom plate is provided with embedded steel plates 8 on the upper and lower sides of the floor groove 5, the embedded steel plate 8 has a hole at the connection of the bolt 18, and a sleeve 9 is embedded at the connection of the bolt 18 of the module bottom plate, and the embedded sleeve 9 and the embedded steel plate 8 are welded at the intersection to form a whole, and the module bottom plate is embedded within the range of the embedded steel plate 8. 6 anchor bars 10, the anchor bars 10 are welded to the upper and lower embedded steel plates 8; accordingly, the foundation 17 is provided with embedded steel plates 8 at the connection, an internal threaded sleeve is embedded at the connection of the bolt 18, an anchor plate 21 is embedded at the lower end of the embedded sleeve 9 in the foundation 17, the anchor plate 21 is welded to the embedded internal threaded sleeve, and the embedded length of the embedded internal threaded sleeve in the foundation 17 needs to meet the anchoring requirements of the concrete structure; the bolt 18 passes through the steel connecting plate 7, the embedded steel plate 8 and the embedded sleeve 9 to be connected to the foundation, and the bolt 18 rotates into the embedded internal threaded sleeve of the foundation 17 to ensure that the force of the upper structure can be transmitted to the foundation.

[0068] In the connection between the inner wall and the foundation 17, a floor notch 5 is left at the intersection of the module bottom plate and the root of the concrete wall. The connection method in the floor notch 5 is the same as the connection method between the outer wall and the foundation 17. For details, please refer to Fig.25 and 26 As shown, there are detailed node diagrams of the connection between the inner wall of the module and the foundation and a cross-sectional view in the KK direction.

[0069] In the modular building residential system of the present invention, in a single building module, the building decoration and electromechanical pipelines are pre-installed, and the roof floor and the bottom floor are also provided for interior decoration and electromechanical pipeline layout. Each building module has floors at the top and bottom to facilitate modular design and construction of building decoration and electromechanical installation, and the building floors are double-layer boards. The load-bearing walls and internal partition walls in each building module are prefabricated into the module, including insulation materials, windows, doors, and finishing layers, etc. The concrete wall panel structural module division method of the present invention follows the principles of building modulus, few specifications, multiple combinations, and reasonable stress of a single module structure on the basis of meeting functional requirements, thereby realizing modularization, serialization, and generalization of module units.

[0070] The module connection method of the present invention adopts dry connection, and the floor slab connection, roof slab connection, exterior wall connection, and interior wall connection methods adopt high-strength bolt connection. The exterior wall and foundation connection and the interior wall and foundation connection adopt bolt connection, and there is no need for secondary pouring of concrete on site. The construction speed is fast, easy to maintain, and conducive to the recycling of materials. The steel plate is embedded in the concrete slab or concrete wall at the node connection, and the sleeve is embedded at the connection. The embedded sleeve and the embedded steel plate are welded to form a whole, so as to ensure that the node force transmission is reasonable after the high-strength bolt applies the pre-tightening force, and the strength of the concrete slab or concrete wall meets the requirements. Due to the waterproof requirements, the roof slab adopts the method of superimposing the top concrete cast-in-place layer with prefabricated panels, wherein part of the steel bars of the cast-in-place layer are embedded in the prefabricated panel layer, forming a composite panel effect and reducing the workload of on-site steel bar laying. The connection method meets the requirements of reasonable structure, safe and reliable nodes, convenient construction, and the overall safety, applicability, and economic rationality formed after connection. The connection nodes are standardized and generalized in the design stage, thereby simplifying the node production and installation process, improving the construction efficiency, and having great application value.

Claims

1. A modular housing system with concrete wall panels, characterized in that A multi-story concrete wall panel structure house is divided into multiple building modules for prefabrication and then installed on site, and the node connection types include floor slab connection, roof slab connection, exterior wall connection, interior wall connection, exterior wall and foundation connection, and interior wall and foundation connection; wherein the floor slab connection connects multiple building modules left and right and up and down, and the floor slab connection is connected by a combination structure of high-strength bolts and steel connecting plates; the top roof slab connection is a roof prefabricated panel layer superimposed on the top cast-in-place concrete layer, and the roof prefabricated panel layer is connected by a combination of high-strength bolts and steel connecting plates; part of the steel bars of the cast-in-place layer are pre-buried in the roof prefabricated panel layer; the exterior wall connection and interior wall connection are connected by a combination structure of high-strength bolts and steel connecting plates; the exterior wall and foundation connection and the interior wall and foundation connection are connected by a combination structure of bolts and steel connecting plates.

2. The modular housing system of concrete wall panel structure according to claim 1 is characterized by: In a single building module, building decoration and mechanical and electrical pipelines are pre-installed, and the roof slab and floor slab are used for interior decoration and mechanical and electrical pipeline layout.

3. The modular housing system of concrete wall panel structure according to claim 1 is characterized by: Part of the side walls of the building module are in an open form, and temporary steel supports are provided at the openings.

4. The modular housing system of concrete wall panel structure according to claim 1 is characterized by: The floor slab in the floor slab connection is a double-layer plate including an upper module bottom plate and a lower module top plate on the left and right sides. The connection between the double-layer plates adopts a dry high-strength bolt connection node. A floor slab groove is reserved at the module connection of the floor slab, and the high-strength bolts are connected to the steel connecting plate in the floor slab groove; the upper and lower plate surfaces of the upper module bottom plate and the lower module top plate in the floor slab groove are both provided with embedded steel plates, and the embedded steel plates have holes at the high-strength bolt connection locations. Embedded sleeves are provided in the upper module bottom plate and the lower module top plate at the high-strength bolt connection locations, and the embedded sleeves and the embedded steel plates are welded at the junction to form a whole; a plurality of anchor bars, at least 6 bars, are embedded at the connection between the upper and lower plate surfaces of the floor slab; the anchor bars are welded to the upper and lower embedded steel plates.

5. The modular housing system of concrete wall panel structure according to claim 4 is characterized by: When the floor slabs are connected to the left and right adjacent slabs, the steel connecting plate spans over the left and right adjacent slabs in the slab grooves, and the high-strength bolts pass through the steel connecting plate at the connection between the left and right adjacent slabs, and the steel plates and sleeves are embedded; the high-strength bolts apply pre-pressure; a horizontal gap is left at the connection between the left and right adjacent slabs, and the gap is filled with a rubber gasket.

6. The modular housing system of concrete wall panel structure according to claim 1 is characterized by: In the roof floor connection, a floor notch is reserved at the lower part of the roof prefabricated panel layer, and embedded steel plates are provided on the upper and lower surfaces of the roof prefabricated panel layer at the floor notch. The embedded steel plates have holes at the high-strength bolt connections, and embedded sleeves are provided at the high-strength bolt connections in the roof prefabricated panel layer. The embedded sleeves and the embedded steel plates are welded at the junction to form a whole; a plurality of anchor bars, at least 6 bars, are embedded at the connection of each panel layer; the anchor bars are welded to the upper and lower embedded steel plates.

7. The modular housing system of concrete wall panel structure according to claim 1 is characterized by: In the exterior wall connection, a wall notch is left on the indoor side of the concrete wall, and embedded steel plates are provided on both the inner and outer sides of the wall notch of the concrete wall. The embedded steel plates have holes at the high-strength bolt connections, and embedded sleeves are provided at the high-strength bolt connections in the concrete wall. The embedded sleeves and the embedded steel plates are welded at the junction to form a whole; a plurality of anchor bars, at least 6 bars, are embedded in the concrete wall within the range of the embedded steel plates; the anchor bars are welded to the left and right embedded steel plates; the steel connecting plate spans the upper and lower concrete walls on the outside of the wall, and the high-strength bolts apply pre-pressure, pass through the steel connecting plate, the embedded steel plate and the sleeve, to ensure the structural rigidity and bearing capacity of the exterior wall connection.

8. The modular housing system of concrete wall panel structure according to claim 1 or 7, characterized in that: In the external wall connection, a floor notch is reserved at a position where the floor is 1.5-2 times the wall thickness horizontally away from the concrete wall, and the upper and lower plate surfaces of the upper module bottom plate and the lower module top plate in the floor notch are both provided with embedded steel plates, the embedded steel plates have holes in the embedded steel plates at the high-strength bolt connection, sleeves are embedded in the plates at the high-strength bolt connection, the embedded sleeves and the embedded steel plates are welded at the junction to form a whole, the upper module bottom plate and the lower module top plate are each embedded with a plurality of anchor bars, at least 6, within the node range; the anchor bars are welded to the upper and lower embedded steel plates; the high-strength bolts pass through the steel connecting plate, the embedded steel plate and the sleeve at the connection between the upper module bottom plate and the lower module top plate; in the internal wall connection, a floor notch is reserved on the left and right floor plates at a horizontal distance of 1 times the wall thickness from the concrete wall, and the connection method in the floor notch is the same as the connection method of the external wall connection on the floor.

9. The modular housing system of concrete wall panel structure according to claim 1 is characterized by: In the connection between the exterior wall and the foundation, a floor groove is left at the intersection of the module bottom plate and the concrete root wall, and the module bottom plate is provided with embedded steel plates on the upper and lower sides of the floor groove, the embedded steel plate has a hole at the bolt connection, a sleeve is embedded at the bolt connection of the module bottom plate, the embedded sleeve and the embedded steel plate are welded at the intersection to form a whole, and the module bottom plate is embedded with a plurality of anchor bars within the range of the embedded steel plate, at least 6 anchor bars, and the anchor bars are welded to the upper and lower embedded steel plates; accordingly, the foundation is provided with an embedded steel plate at the connection, an internal threaded sleeve is embedded at the bolt connection, an anchor plate is embedded at the lower end of the embedded sleeve in the foundation, the anchor plate is welded to the embedded internal threaded sleeve, and the embedded length of the embedded internal threaded sleeve in the foundation needs to meet the anchoring requirements of the concrete structure; the bolt passes through the steel connecting plate, the embedded steel plate and the embedded sleeve to be connected to the foundation, and the bolt rotates into the embedded internal threaded sleeve of the foundation to ensure that the force of the upper structure can be transmitted to the foundation.

10. The modular housing system of concrete wall panel structure according to claim 1 or 9, characterized in that: In the connection between the inner wall and the foundation, a floor groove is left at the position where the module bottom plate and the root of the concrete wall meet, and the connection method in the floor groove is the same as the connection method between the outer wall and the foundation.

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