A modular building vertical and horizontal connection node device and its construction method

Abstract

This invention discloses a modular building vertical and horizontal connection node device and its construction method, including a first connection node component, which is inserted between two adjacent box modules or between a corresponding box module and a supporting foundation for connection and fixation; a second connection node component, which includes: a U-shaped first positioning groove and a second positioning groove, which are respectively fixedly disposed on the opposite side walls of two adjacent box modules, and the first positioning groove and the second positioning groove are engaged, and have a cavity for grouting material to enter after engagement; a partition plate, which is disposed on the first positioning groove and the second positioning groove; and multiple horizontal distribution bars, which are inserted on both sides of the first positioning groove and the second positioning groove and vertically equidistantly distributed. This invention enables rapid assembly of modules, reduces on-site wet work, and ensures the structural strength of the node, achieving a reliable connection effect equivalent to cast-in-place concrete.

Description

Technical Field

[0001] This invention relates to the field of modular building technology, and in particular to a node device for vertical and horizontal connection of modular buildings and its construction method. Background Technology

[0002] Modular construction is an industrialized construction system that breaks down a building into independent spatial modules. After most of the prefabrication processes, such as structure, decoration, water and electrical equipment, are completed in the factory, the modules are transported to the site and can be assembled by hoisting. Compared with traditional cast-in-place construction, it has advantages such as fast construction speed, less on-site pollution, and controllable component quality, and has been widely promoted and applied in recent years.

[0003] However, in existing technologies, the common connection methods for the joints of modular concrete boxes are either reserving a post-cast section on the top plate of the box or pre-embedding steel plates on the top plate for on-site welding. The former requires a large amount of wet work on-site, with complicated construction procedures, and requires waiting for the concrete to cure before the subsequent hoisting of the upper modules can be carried out, which slows down the overall construction progress on site. The latter requires additional on-site welding work and welding quality inspection procedures, which also increases the on-site construction workload and construction period, and cannot give full play to the core advantages of rapid assembly of modular buildings, making it difficult to meet the needs of efficient construction and rapid assembly of modular buildings. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned above by providing a modular building vertical and horizontal connection node device and its construction method, which enables rapid assembly of modules, reduces on-site wet work, ensures the structural strength of the node, and achieves a reliable connection effect equivalent to cast-in-place construction.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a node device for vertical and horizontal connection of modular buildings, comprising: The first connecting node component is inserted between two adjacent box modules or between the corresponding box module and the supporting foundation for connection and fixation. The second connection node component includes: The first and second positioning grooves are U-shaped and are respectively fixedly installed on the opposite side walls of two adjacent box modules. The first and second positioning grooves are engaged and have a cavity for grouting material to enter after engagement. The spacers are disposed on the first positioning groove and the second positioning groove. When the first positioning groove and the second positioning groove are engaged, the spacers are staggered in the cavity. There are multiple horizontally distributed ribs, which are inserted on both sides of the first and second positioning slots and are vertically equidistant. A wiring assembly is disposed in the cavity between the first positioning groove and the second positioning groove. The wiring assembly is used to guide the arrangement of pipelines and can also position the first positioning groove and the second positioning groove.

[0006] Furthermore, the wiring assembly includes a sleeve fitting inserted into the cavity, the sleeve fitting having a wiring groove inside, a connector detachably provided on the sleeve fitting, an opening for the conduit to pass through on the connector, fixing ribs on both sides of the connector, positioning holes for interlocking with the fixing ribs on the sleeve fitting, and through-channel grooves on the side walls of the sleeve fitting, the first positioning groove, and the second positioning groove, with a wiring sleeve inserted laterally in the through-channel groove; The bottom of both the first and second positioning grooves is provided with positioning hooks, and the sleeve is provided with a fixing groove that engages with the positioning hooks.

[0007] Furthermore, the box module includes a rectangular box structure with a hollow interior, consisting of shear walls and infill partitions.

[0008] Furthermore, the horizontal distribution ribs penetrate the first positioning groove and the second positioning groove, and a plurality of first connecting node components are inserted into the cavity between the first positioning groove and the second positioning groove.

[0009] Furthermore, each of the horizontal distribution ribs is welded onto the corresponding first positioning groove and second positioning groove. A plurality of first connecting node components are also provided in the cavity between the first positioning groove and the second positioning groove, and each of the first connecting node components is provided with a horizontal stirrup.

[0010] Furthermore, the first connecting node assembly includes vertical inserts and positioning holes; The positioning holes are opened on each of the box modules, and each of them is provided with a metal corrugated pipe. The inner diameter of the metal corrugated pipe is larger than the outer diameter of the vertical insert. The corresponding vertical insert can be inserted into the corresponding metal corrugated pipe.

[0011] Furthermore, the spacer plate (203) is a PBL plate.

[0012] A construction method for a modular building vertical and horizontal connection node device includes the following steps: S1: Position and install the lower box module or supporting foundation to complete the foundation placement; S2: Hoist the adjacent horizontal box modules, align the first positioning groove and the second positioning groove on the adjacent box modules and engage them, so that the partition plates inside the two are staggered, and complete the initial positioning of the horizontal modules; S3: Hoist the upper box module, align the positioning holes on the upper box module with the vertical reinforcing bars on the lower box module or the supporting foundation, and insert them to complete the initial positioning of the vertical module; S4: Perform overall leveling and correction on each box module after the initial positioning is completed; S5: When assembling the box modules with each other or with the supporting foundation, the corresponding first connecting node component will be inserted into the corresponding positioning hole. After insertion, grout will be injected. At the same time, grout will be injected into the cavity formed after the first positioning groove and the second positioning groove are engaged to complete the node connection.

[0013] Preferably, before completing the initial positioning of the vertical module in step S3, a thick layer of grout is laid on the top of the lower box module or the supporting foundation, and then the upper box module is hoisted and connected.

[0014] The beneficial effects of this invention are reflected in: In this invention, by pre-embedding the first connecting node component, the first positioning groove, the second positioning groove, the spacer plate, and the horizontal distribution reinforcement in each box module at the factory, the box modules only need to be hoisted into place sequentially on site. This allows the adjacent box modules or the box modules and the supporting foundation to achieve preliminary vertical positioning through the first connecting node component. At the same time, the first positioning groove and the second positioning groove on two horizontally adjacent box modules are aligned and engaged, and the spacer plates inside them interlock to form a lateral limit. After the operation is completed, grout is injected into the cavity to fully fill the gaps between the nodes and wrap the vertical reinforcement, the interlocking spacer plates, and the horizontal distribution reinforcement, firmly connecting the dispersed box modules into a complete whole load-bearing structure. This solves the technical problems of large amount of wet work, complicated procedures, and long construction period in existing modular building connection nodes, simplifies the on-site construction procedures, speeds up the hoisting and installation progress, and ensures the structural strength of the nodes, achieving a reliable connection effect equivalent to cast-in-place concrete. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a partial schematic diagram of the housing module in this invention; Figure 3 This is a schematic diagram illustrating the configuration of the second connection node component in this invention; Figure 4 This is a partial view of the second connecting node component in this invention; Figure 5 This is a schematic diagram illustrating the wiring components in this invention; Figure 6 This is a schematic diagram of the wiring assembly in this invention; Figure 7 This is a partial schematic diagram of the wiring assembly in this invention; Figure 8 This is a schematic diagram of the second embodiment of the present invention; Figure 9 This is a schematic diagram of the third embodiment of the present invention.

[0016] In the picture: 1. First connecting node assembly; 2. Second connecting node assembly; 201. First positioning groove; 202. Second positioning groove; 203. Spare plate; 204. Horizontal distribution reinforcement; 3. Wiring assembly; 301. Sleeve fitting; 302. Cable tray; 303. Connecting seat; 304. Opening; 305. Fixing reinforcement; 306. Through cable tray; 307. Wiring sleeve; 308. Positioning hook; 4. Box module; 401. Shear wall; 402. Infill partition wall; 403. Horizontal stirrup; 5. Support foundation. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-9 The present invention discloses a node device for vertical and horizontal connection of modular building, including multiple box modules 4, which are stacked sequentially, and the bottom of the lowest box module 4 is provided with a support base 5. A first connection node component 1 is inserted between two adjacent box modules 4 or corresponding box modules 4 and the support base 5 in the Z-axis direction. The first connection node component 1 is used to connect and fix the two adjacent box modules 4 or corresponding box modules 4 and the support base 5.

[0019] In one embodiment, the device further includes a second connecting node assembly 2, which includes a U-shaped first positioning groove 201 and a second positioning groove 202, which are respectively fixedly disposed on the opposite side walls of two adjacent box modules 4 in the X-axis direction. The first positioning groove 201 and the second positioning groove 202 are engaged and have a cavity for grout to enter after engagement. A spacer plate 203 is installed on both the first positioning groove 201 and the second positioning groove 202. When the first positioning groove 201 and the second positioning groove 202 are engaged, the spacer plates 203 are staggered in the cavity.

[0020] Multiple horizontal distribution ribs 204 are installed on both sides of the first positioning groove 201 and the second positioning groove 202, and each horizontal distribution rib 204 is equidistantly distributed along the Z-axis. A wiring assembly 3 is also provided in the cavity between the first positioning groove 201 and the second positioning groove 202. The wiring assembly 3 is used to guide the pipeline layout and can also position the first positioning groove 201 and the second positioning groove 202.

[0021] Both the first positioning groove 201 and the second positioning groove 202 can be U-shaped steel plate grooves, while the partition plate 203 can be a PBL plate. In use, the U-shaped steel plate groove between the two box modules 4 forms a closed space. By setting a PBL plate or steel bars in the closed space and finally injecting high-strength grout, a strong connection node can be formed.

[0022] In practice, the first connecting node assembly 1, the first positioning groove 201, the second positioning groove 202, the partition plate 203, and the horizontal distribution rib 204 are pre-embedded in each box module 4 at the factory. On-site, the box modules 4 only need to be hoisted into place sequentially, so that adjacent box modules 4 or box modules 4 and supporting foundation 5 are initially positioned vertically through the first connecting node assembly 1. At the same time, the first positioning groove 201 and the second positioning groove 202 on two horizontally adjacent box modules 4 are aligned and engaged, so that the partition plates 203 inside them are mutually engaged. The interlocking meshes form a lateral limit. After the operation is completed, grout is injected into the cavity to fully fill the gaps between the nodes and wrap the vertical reinforcing bars, the interlocking spacers 203 and the horizontal distribution bars 204. This firmly connects the dispersed box modules 4 into a complete load-bearing structure, thereby solving the technical problems of large amount of wet work, complicated procedures and long construction period of existing modular building connection nodes. It simplifies the on-site construction procedures, speeds up the hoisting and installation progress, and ensures the structural strength of the nodes, achieving a reliable connection effect equivalent to cast-in-place.

[0023] In addition, during construction, the wiring component 3 can be vertically inserted into the cavity before grouting. The wiring component 3 is used to guide the pipeline layout and can also position the first positioning groove 201 and the second positioning groove 202. The wiring component 3 can complete the auxiliary positioning of the two positioning grooves through its own adaptation connection with the two positioning grooves. With the grouting material, the stability of the connection can be further improved. At the same time, the hollow structure inside the wiring component 3 can reserve a dedicated channel for guiding the orderly layout of various building pipelines.

[0024] In one embodiment, the wiring assembly 3 includes a sleeve 301 that is inserted into a cavity. The sleeve 301 has a wiring groove 302 inside. A connector 303 is detachably installed on the sleeve 301. The connector 303 has an opening 304 for the conduit to pass through. Fixing ribs 305 are installed on both sides of the connector 303. The sleeve 301 has a positioning hole that interlocks with the fixing ribs 305. A wire passage groove 306 is provided on the side wall of the sleeve 301, the first positioning groove 201, and the second positioning groove 202. A wiring sleeve 307 is inserted laterally in the wire passage groove 306. A positioning hook 308 is provided at the bottom of the first positioning groove 201 and the second positioning groove 202. A fixing groove is provided on the sleeve 301 that engages with the positioning hook 308.

[0025] In specific implementation, the wall of the box module 4 is pre-cut with openings that cooperate with the cable trays 306. During installation, the operator can vertically insert the sleeve 301 into the cavity until the positioning hooks 308 on the first positioning groove 201 and the second positioning groove 202 are engaged with the corresponding fixing grooves of the sleeve 301, thus completing the initial positioning of the sleeve 301 with the first positioning groove 201 and the second positioning groove 202. In this state, the cable trays 306 on the side walls of the sleeve 301, the first positioning groove 201 and the second positioning groove 202 are aligned. The operator then inserts the wiring sleeve 307 through the corresponding openings and each cable tray 306, thereby connecting the wiring sleeve 307 with the cable tray 302. When the operator injects grout into the cavity, it will not flow into the cable tray 302. The wiring sleeve 307 and the cable tray 302 can then be used for the corresponding pipeline layout. This component can enhance stability by connecting with each positioning groove while facilitating the pipeline layout, thus making it convenient for use.

[0026] Preferably, the box module 4 includes a rectangular box structure with a hollow interior, consisting of shear walls 401 and infill partitions 402.

[0027] In one embodiment, the horizontal distribution rib 204 passes through the first positioning groove 201 and the second positioning groove 202, and a plurality of first connecting node components 1 are inserted into the cavity between the first positioning groove 201 and the second positioning groove 202.

[0028] In specific implementation, the horizontal distribution reinforcement 204 adopts a through-type layout. By pre-processing in the factory, suitable through holes are opened on the corresponding side walls of the first positioning groove 201 and the second positioning groove 202, so that the horizontal distribution reinforcement 204 can be pre-embedded through the side walls of the two positioning grooves, realizing the continuous connection of the horizontal load-bearing reinforcement. At the same time, multiple first connection node components 1 are also inserted into the cavity formed by the snap-fit ​​of the first positioning groove 201 and the second positioning groove 202. The vertical node components further enhance the vertical bearing capacity and overall rigidity of the horizontal connection node. During on-site construction, after completing the module hoisting and positioning and inserting the wiring component 3, grouting material is simultaneously injected into the positioning holes of the first connection node component 1 and the cavity of the horizontal node. This allows the horizontal node to have the dual connection effect of horizontal load-bearing connection and vertical structural reinforcement, adapting to the connection requirements of large-size wall modules.

[0029] In another embodiment, each horizontal distribution rib 204 is welded onto the corresponding first positioning groove 201 and second positioning groove 202. A plurality of first connecting node components 1 are also provided in the cavity between the first positioning groove 201 and the second positioning groove 202, and each first connecting node component 1 is provided with a horizontal stirrup 403.

[0030] In specific implementation, the horizontal distribution ribs 204 are pre-installed in the side walls of the corresponding first positioning grooves 201 and second positioning grooves 202, so that the horizontal force can be transmitted through the grooves without welding. At the same time, multiple first connecting node components 1 are also inserted in the cavity formed by the engagement of the first positioning grooves 201 and the second positioning grooves 202, and horizontal stirrups 403 are also sleeved on the outside of each first connecting node component 1. The multiple first connecting node components 1 are tied together as a whole by the horizontal stirrups 403, which further improves the shear stiffness and overall stress performance of the horizontal connecting nodes.

[0031] In one embodiment, the first connecting node assembly 1 includes vertical inserts and positioning holes. The positioning holes are formed on each housing module 4, and the vertical inserts are inserted into the positioning holes on the lower side of the corresponding housing module 4 or supporting foundation 5. Each vertical insert contains a corrugated metal pipe, the inner diameter of which is larger than the outer diameter of the vertical insert, allowing the vertical insert to be inserted into the corresponding corrugated metal pipe.

[0032] In practice, vertical reinforcing bars are inserted into the positioning holes on the lower box module 4 or the supporting foundation 5. After the bars are inserted, grout is injected into the corrugated metal pipe to fix them. Then the remaining box modules 4 can be transported for assembly. The above construction can be carried out in the factory. This construction method does not require waiting for the grout to cure before subsequent operations can be carried out, which effectively reduces the amount of wet work on site and simplifies the construction process.

[0033] It also includes a construction method for a modular building vertical and horizontal connection node device, comprising the following steps: S1: Position and install the lower box module 4 or the supporting foundation 5 to complete the foundation placement; S2: Hoist the adjacent horizontal box module 4 so that the first positioning groove 201 and the second positioning groove 202 on the adjacent box module 4 are aligned and engaged, so that the partition plates 203 inside the two are staggered, and the initial positioning of the horizontal module is completed. S3: Hoist the upper box module 4, align the positioning holes on the upper box module 4 with the vertical reinforcing bars on the lower box module 4 or the supporting foundation 5 and insert them to complete the initial positioning of the vertical module. S4: Perform overall leveling and correction on each box module 4 after the initial positioning is completed; S5: When the box module 4 is assembled with each other or with the supporting foundation 5, the corresponding first connecting node component 1 will be inserted into the corresponding positioning hole. After insertion, grouting material is injected. At the same time, grouting material is injected into the cavity formed after the first positioning groove 201 and the second positioning groove 202 are engaged, thus completing the node connection.

[0034] In practice, by pre-embedding the first connecting node component 1 and the second connecting node component 2 in the factory, the node construction can be completed on site only by hoisting and positioning the box module 4, inserting the wiring component 3 and injecting grout. This not only reduces the amount of wet work on site and eliminates tedious procedures such as on-site welding and secondary grooving of the wall, but also enables the rapid construction of the subsequent upper box module 4 hoisting without curing after grouting. This effectively shortens the on-site construction period and ensures the structural strength of the node.

[0035] In one embodiment, before the initial positioning of the vertical module is completed in step S3, a thick base grout is first laid on the top of the lower box module 4 or the supporting foundation 5, and then the hoisting and insertion operation of the upper box module 4 is carried out.

[0036] In practice, this process can effectively fill the assembly gap between the upper and lower modules, improve the sealing performance of the vertical nodes, and enhance the positioning stability of the first connecting node component 1 after insertion, thereby avoiding grout leakage during subsequent grouting and ensuring the construction quality of the vertical connection.

[0037] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] Additionally, "multiple" refers to two or more.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A node device for vertical and horizontal connection of modular buildings, characterized in that, include: The first connecting node component (1) is inserted between two adjacent box modules (4) or between the corresponding box module (4) and the supporting foundation (5) for connecting and fixing them; The second connection node component (2) includes: The first positioning groove (201) and the second positioning groove (202) are U-shaped and are respectively fixedly installed on the opposite side walls of two adjacent box modules (4). The first positioning groove (201) and the second positioning groove (202) are engaged and have a cavity for grouting material to enter after being engaged. The spacer plate (203) is disposed on the first positioning groove (201) and the second positioning groove (202). When the first positioning groove (201) and the second positioning groove (202) are engaged, the spacer plates (203) are staggered in the cavity. There are multiple horizontal distribution ribs (204), which are inserted on both sides of the first positioning groove (201) and the second positioning groove (202) and distributed vertically at equal intervals; The wiring assembly (3) is disposed in the cavity between the first positioning groove (201) and the second positioning groove (202). The wiring assembly (3) is used to guide the pipeline layout and can also position the first positioning groove (201) and the second positioning groove (202).

2. The node device for vertical and horizontal connection of modular buildings according to claim 1, characterized in that: The wiring assembly (3) includes a sleeve (301) inserted into a cavity. The sleeve (301) has a wiring groove (302) inside. A connector (303) is detachably provided on the sleeve (301). An opening (304) is provided on the connector (303) for the conduit to pass through. Fixing ribs (305) are provided on both sides of the connector (303). A positioning hole is provided on the sleeve (301) to cooperate with the fixing ribs (305). A through groove (306) is provided on the side wall of the sleeve (301), the first positioning groove (201) and the second positioning groove (202). A wiring sleeve (307) is inserted horizontally in the through groove (306). The bottom of the first positioning groove (201) and the second positioning groove (202) are both provided with positioning hooks (308), and the sleeve (301) is provided with a fixing groove that engages with the positioning hooks (308).

3. The node device for vertical and horizontal connection of modular buildings according to claim 1, characterized in that: The box module (4) includes a rectangular box structure with a hollow interior, consisting of shear walls (401) and infill partitions (402).

4. The node device for vertical and horizontal connection of modular buildings according to claim 3, characterized in that: The horizontal distribution rib (204) passes through the first positioning groove (201) and the second positioning groove (202), and a plurality of first connecting node components (1) are inserted in the cavity between the first positioning groove (201) and the second positioning groove (202).

5. The node device for vertical and horizontal connection of modular buildings according to claim 3, characterized in that: Each of the horizontal distribution ribs (204) is welded and disposed on the corresponding first positioning groove (201) and second positioning groove (202). A plurality of first connecting node components (1) are also disposed in the cavity between the first positioning groove (201) and the second positioning groove (202), and each of the first connecting node components (1) is provided with a horizontal stirrup (403).

6. The node device for vertical and horizontal connection of modular buildings according to claim 1, characterized in that: The first connecting node assembly (1) includes a vertical insert and a positioning hole; The positioning holes are opened on each of the box modules (4), and each of them is provided with a metal corrugated pipe. The inner diameter of the metal corrugated pipe is larger than the outer diameter of the vertical insert. The corresponding vertical insert can be inserted into the corresponding metal corrugated pipe.

7. The node device for vertical and horizontal connection of modular buildings according to claim 1, characterized in that: The spacer plate (203) is a PBL plate.

8. A construction method for a modular building vertical and horizontal connection node device, comprising the modular building vertical and horizontal connection node device as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Position and install the lower box module (4) or supporting foundation (5) to complete the foundation placement; S2: Hoist the adjacent horizontal box module (4) so ​​that the first positioning groove (201) and the second positioning groove (202) on the adjacent box module (4) are aligned and engaged, so that the partition plates (203) inside the two are staggered and the initial positioning of the horizontal module is completed. S3: Hoist the upper box module (4) so ​​that the positioning holes on the upper box module (4) are aligned with the vertical reinforcing bars on the lower box module (4) or the supporting foundation (5) and then inserted to complete the initial positioning of the vertical module; S4: Perform overall leveling and correction on each box module (4) after the initial positioning is completed; S5: When the box modules (4) are assembled with each other or with the supporting foundation (5), the corresponding first connection node component (1) will be inserted into the corresponding positioning hole. After insertion, grout will be injected. At the same time, grout will be injected into the cavity formed after the first positioning groove (201) and the second positioning groove (202) are engaged to complete the node connection.

9. The construction method of the modular building vertical and horizontal connection node device according to claim 8, characterized in that: Before completing the initial positioning of the vertical module in step S3, thick grout is laid on the top of the lower box module (4) or the supporting foundation (5) before the upper box module (4) is hoisted and connected.

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