Construction method of fabricated embedded module building structure
By adopting the heavy chassis and light wall roof structure design of embedded unfinished houses and the rapid assembly method of frame connectors, combined with the lifting and transporting methods of lifting and lowering trucks and balanced hangers, the problems of low lifting safety and low construction efficiency in the existing prefabricated embedded module building structure construction methods are solved, and efficient and stable building structure installation and promotion are achieved.
Patent Information
- Application Number
- CN202510226256.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-05-23
AI Technical Summary
The construction methods of existing prefabricated embedded module building structures have problems such as low lifting and transportation safety, low construction efficiency and high construction difficulty in high-capacity environments, which affects the promotion of building structures.
A construction method is adopted, through the heavy chassis and light wall roof structure design of the embedded unfinished house, it uses frame connectors and connection boxes for rapid assembly and connection, and combines lifting and transferring vehicles and balanced hangers for lifting and transporting, ensuring high connection accuracy and structural stability.
It improves construction efficiency and connection convenience, ensures high installation accuracy and structural stability, is suitable for buildings with unlimited floor heights, and promotes the promotion of embedded prefabricated building structures.
Smart Images
Figure CN120026704A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of prefabricated building structure construction, and in particular to a construction method for a prefabricated embedded module building structure. Background Art
[0002] In the process of development of the construction industry, a new form - prefabricated buildings has emerged, and with the release of national policies, it has become a mainstream trend and includes a variety of forms. Among them, prefabricated buildings with unit modules as the main feature are widely used. Compared with independent unit module buildings, embedded prefabricated module buildings are embedded in traditional beam-slab-column structures, with no restrictions on floor height, short production cycle, low structural cost, high precision, low deadweight, and architectural shape is not bound by unit module prefabricated buildings, giving buildings more freedom to display. The most critical aspects of embedded prefabricated module buildings are the connection between the top, bottom, and wall of the module, the connection between the module and the foundation layer, and the transportation and hoisting safety of the entire module. The existing construction methods are mostly to split the embedded structure again, partially hoist it into the interior of the building structure, and then assemble it, which improves the safety of hoisting and transportation, but reduces construction efficiency and increases the difficulty of on-site construction under the height restriction environment inside the building structure, which is not conducive to the promotion of embedded prefabricated building structures. Summary of the invention
[0003] The purpose of the present invention is to provide a construction method for an assembled embedded modular building structure, which improves construction efficiency, is simple and convenient to connect, has high installation accuracy, has strong structural stability, has no restrictions on floor height during installation, and is convenient for promoting embedded assembled building structures.
[0004] To achieve the above object, the present invention adopts the following technical solutions: A construction method for an assembled embedded module building structure, comprising a main building structure and an embedded roughcast house arranged in the main building structure, wherein the embedded roughcast house comprises a bottom plate, a wall plate fixedly arranged on the top circumference of the bottom plate, and a top plate fixedly arranged on the top of the wall plate, wherein the bottom plate is composed of a steel frame, a lower thin-walled steel purlin fixedly arranged on the steel frame, and a lower thermal insulation and sound insulation layer, wherein the thermal insulation and sound insulation layer is arranged between the lower thin-walled steel purlin and the steel frame; the wall plate is composed of a middle thin-walled steel purlin and a middle thermal insulation layer; the top plate is composed of an upper thin-walled steel purlin and an upper thermal insulation layer; The construction method comprises the following steps: Step 1: assemble the embedded roughcast house. Fix a plurality of frame connectors on the outside of the steel frame. The frame connector includes a support plate fixedly installed on the steel frame, an adjusting screw detachably installed on the support plate, and a lower connecting plate fixedly arranged at the bottom of the adjusting screw; fix connecting boxes on the top, bottom and side of the thin-walled steel purlin, install the wall panels on the bottom plate, and connect them in the connecting boxes by passing bolts through the steel frame. Two adjacent wall panels are fixedly connected by passing bolts through two adjacent connecting boxes; fix connecting boxes on the circumference of the upper thin-walled steel purlin. After the installation of the four wall panels is completed, the top plate is hoisted to the top of the four wall panels. The top plate and the four wall panels are fixedly connected by passing bolts through two adjacent connecting boxes to form a heat-insulating and sound-proof embedded roughcast house with a heavy chassis and a light wall top; Step 2: hoisting the built-in roughcast room, remove the adjusting screw on the frame connector, install the lifting ring on the support plate, install four lifting rings symmetrically on both sides of the built-in roughcast room, install lifting ropes on the lifting rings, install the tops of the four lifting ropes on the balance hanger, and use the lifting equipment to hoist the balance hanger; Step three, the embedded rough-shell house is transferred. A liftable transfer vehicle is arranged in the main structure of the building, the embedded rough-shell house is hoisted onto the liftable transfer vehicle, and the embedded rough-shell house is transported to the designated location by the liftable transfer vehicle; the liftable transfer vehicle includes a frame, a plurality of running wheels arranged at the bottom of the frame, a handrail installed on one side of the frame, a plurality of lifters installed on the top of the frame and a bracket installed on the top of the plurality of lifters, and the embedded rough-shell house is installed on the bracket.
[0005] Step 4: Connect the embedded rough house to the main structure of the building. After adjusting the embedded rough house to the specified position, adjust the screw so that the lower connecting plate is located on the top of the main structure of the building. Use expansion bolts to pass through the lower connecting plate and connect it to the main structure of the building. Then fix the adjusting screw to the support plate with nuts. After all the frame connectors are fixed, pour concrete to connect the bottom of the embedded rough house to the main structure of the building as a whole.
[0006] Preferably, a door frame and / or a window frame is provided on the wall panel, a door leaf is mounted on the door frame, and a window leaf is mounted on the window frame.
[0007] Preferably, the connection box is a hollow box-shaped structure with one side open, and the operator performs the connection operation from the open side.
[0008] Preferably, in the step 1, when the wall panel is connected to the steel frame, an operation hole is provided on the side of the steel frame, and the bolts connecting the bottom plate and the steel frame are inserted through the operation hole.
[0009] Preferably, in step 2, the outer dimensions of the balancing hanger are larger than those of the embedded roughcast room, and the four hanging ropes are arranged in a trumpet shape opening upward.
[0010] Preferably, a cantilever transfer platform is installed on one side of the main structure of the building, and the liftable transfer vehicle is first moved to the cantilever transfer platform. The lifting equipment lifts the embedded rough house onto the liftable transfer vehicle, so that the liftable transfer vehicle can receive the embedded rough house from the outside and then transfer it to the installation site, and then dismantle the cantilever transfer platform.
[0011] Preferably, in step three, a plurality of rollers are provided on both sides of the bracket, and both sides of the steel frame are located on the rollers.
[0012] In the present invention, the embedded roughcast house set in step 1 adopts a structural design with a heavy chassis and light walls and tops as a whole, which has good structural stability, and the wall panels and top panels are both lightweight and have strong thermal insulation effects. During hoisting, since the bottom panel is heavy, only a hoisting point needs to be set at the bottom, and no hoisting point needs to be set at other positions, which improves the convenience of hoisting. The structure of heavy chassis and light walls and tops has good hoisting stability, which improves the stability and safety of hoisting. The wall panels, top panels and bottom panels are connected by a connection box, with high connection accuracy, can be quickly assembled, and have good connection reliability.
[0013] The wall panels and top panels are made of cold-bent steel. Cold-bending machines are used to produce components with high precision and high efficiency, and then assembled. The overall structural error is controlled within ±2mm to ensure the smooth assembly of decoration and other mechanical and electrical professionals. The cold-bent keel machine is used to produce and install quickly, without welding and small deformation. The wall panels and top panels are made of cold-bent thin-walled steel with lightweight magnesium-based panels. The bulk density is 1 / 5 of that of traditional concrete slabs, the thermal conductivity is 0.06, and the sound insulation coefficient can reach 40 decibels. The bottom plate, wall panels and top plates are all prefabricated by factory equipment, which shortens the on-site construction period.
[0014] In step 2, the inherent structure of the embedded rough house is used to install the lifting equipment, and then the balanced hanger is used for lifting. The operation is simple and convenient, and has strong lifting stability. In step 3, the set up liftable transfer vehicle can undertake the embedded rough house in the open space, and transport the embedded rough house to the area that the lifting equipment cannot reach, which increases the applicable scenarios of the embedded structure. The liftable transfer vehicle can lift the embedded rough house and transport the embedded rough house to the specified height, which improves the indoor transportation and installation capabilities.
[0015] In Step 4, after connecting the bottom plate to the main structure through the frame connector, the two are integrally fixed by means of concrete pouring, and the connection stability is good. As a whole, an embedded structure is adopted, which solves the problem of limited floor height in prefabricated buildings. The building height is not limited and super high-rise buildings can be built, which is convenient for promoting the embedded prefabricated building structure. Description of the Drawings
[0016] Figure 1 Schematic diagram of the assembled structure of the embedded roughcast house in Step 1 of the present invention; Figure 2 Schematic diagram of the partial structure of the embedded roughcast house of the present invention; Figure 3 Schematic diagram of the hoisting state in Step 2 of the present invention; Figure 4 Enlarged schematic diagram of the partial hoisting structure of the present invention; Figure 5 Schematic diagram of the hoisting and transferring state in Step 3 of the present invention; Figure 6 Schematic diagram of the initial transferring state in Step 3 of the present invention; Figure 7 Schematic diagram of the transferring state in Step 3 of the present invention; Figure 8 Schematic diagram of the frame connector structure of the present invention; Fig. 9 Schematic diagram of the partial structure of the pouring connection in Step 4 of the present invention; Fig.10 Enlarged schematic diagram of the partial wall panel installation of the present invention; Fig.11 Schematic diagram of the structure of the liftable transfer vehicle of the present invention; In the figure: 1, building main structure; 2, embedded roughcast house; 3, frame connector; 4, connection box; 5, lifting ring; 6, lifting rope; 7, balance hanger; 8, liftable transfer vehicle; 9, cantilever transfer platform; 20, bottom plate; 21, wall panel; 22, top plate; 30, support plate; 31, adjusting screw; 32, lower connecting plate; 80, vehicle frame; 81, walking wheel; 82, handrail; 83, lifter; 84, bracket; 85, roller; 210, medium-thin walled steel purlin; 211, medium insulation layer. Detailed Embodiment
[0017] The following further describes the present invention with reference to the drawings: As Figures 1 to 11The construction method of an assembled embedded modular building structure shown in the figure includes a main building structure 1 and an embedded roughcast house 2 arranged in the main building structure 1, wherein the embedded roughcast house 2 includes a bottom plate 20, a wall panel 21 fixedly arranged on the top circumference of the bottom plate 20, and a top plate 22 fixedly arranged on the top of the wall panel 21, wherein the bottom plate 20 is composed of a steel frame, a lower thin-walled steel purlin fixedly arranged on the steel frame, and a lower thermal insulation and sound insulation layer, and the steel frame is composed of rectangular square steel pipes fixedly spliced by welding. The lower thin-walled steel purlin is made of cold-bent thin-walled steel by a cold bending machine, thereby avoiding deformation caused by welding and improving the installation accuracy of the overall structure. The thermal insulation and sound insulation layer is arranged between the lower thin-walled steel purlin and the steel frame. The wall panel 21 is composed of a medium thin-walled steel purlin 210 and a medium thermal insulation layer 211, and the medium thin-walled steel purlin 210 is made of cold-bent thin-walled steel by a cold bending machine. The top plate 22 is composed of an upper thin-walled steel purlin and an upper insulation layer. The upper thin-walled steel purlin is made of cold-bent thin-walled steel by a cold bending machine. The lower insulation and sound insulation layer is spliced with insulation rock wool and sound insulation board. The middle insulation layer 211 and the upper insulation layer are made of lightweight magnesium-based sheet materials. The lightweight magnesium-based sheet materials are fixedly installed in the gaps between the middle thin-walled steel purlin 210 or the upper thin-walled steel purlin to form a lightweight insulation wall panel 21 or top plate 22.
[0018] The construction method comprises the following steps: Step 1: assemble the embedded roughcast house 2, and fix a plurality of frame connectors 3 on the outside of the steel frame. In this embodiment, a rectangular slot is set on the outside of the steel frame, and the frame connector 3 is installed in the rectangular slot. The frame connector 3 includes a support plate 30 fixedly installed in the rectangular slot of the steel frame by welding, an adjustment screw 31 detachably installed on the support plate 30 by a nut, and a lower connecting plate 32 fixedly set at the bottom of the adjustment screw 31 by welding. The adjustment screw 31 can also be replaced by a bolt. Specifically, a through hole for installing the adjustment screw 31 is set on the support plate 30, and the through hole also serves as a mounting hole for the subsequent installation of the lifting ring 5. At least two anchor holes are set on the lower connecting plate 32. After the embedded roughcast house 2 is installed at a designated position of the main structure 1 of the building, the anchor bolts are used to pass through the anchor holes to be fixedly connected to the main structure 1 of the building, and the structure has strong structural stability.
[0019] A plurality of connection boxes 4 are fixedly installed on the top, bottom and side of the middle thin-walled steel purlin 210. The connection box 4 is a hollow box-shaped structure with one side open, and the operator performs the connection operation from the open side. During assembly, the wall panel 21 is installed on the bottom plate 20, and bolts are used to pass through the steel frame to connect to the connection box 4, so that the wall panel 21 is fixedly connected to the bottom plate 20. Two adjacent wall panels 21 are fixedly connected by passing through two adjacent connection boxes 4 with bolts. The connection box 4 is fixedly installed on the circumference of the upper thin-walled steel purlin. After the four wall panels 21 are installed, the top plate 22 is hoisted to the top of the four wall panels 21. The top plate 22 and the four wall panels 21 are fixedly connected by passing through two adjacent connection boxes 4 with bolts. After the assembly is completed, a heat-insulating and sound-proof embedded rough house 2 with a heavy chassis and a light wall top is formed. A door frame and / or a window frame is arranged on the wall panel 20, a door leaf is installed on the door frame, and a window leaf is installed on the window frame. The door leaf and the window leaf are prefabricated and installed to avoid subsequent modification and construction.
[0020] When the wall panel 21 is connected to the steel frame, an operation hole is provided on the side of the steel frame, and the bolts connecting the wall panel 21 and the steel frame are inserted through the operation hole. The operation hole is prefabricated in advance.
[0021] Step 2: hoist the embedded rough house 2, remove the adjustment screw 31 on the frame connector 3, install the lifting ring 5 on the support plate 30, install four lifting rings 5 symmetrically on both sides of the embedded rough house 2, install the lifting rope 6 on the lifting ring 5, install the top of the four lifting ropes 5 on the balance hanger 7, and use the lifting equipment to hoist the balance hanger 7. The outer dimensions of the balance hanger 7 are larger than the outer dimensions of the embedded rough house 2, and the four lifting ropes 6 are arranged in a trumpet shape with an upward opening.
[0022] Step three, the embedded rough house 2 is transported, a liftable transfer vehicle 8 is set in the main building structure 1, the embedded rough house 2 is hoisted onto the liftable transfer vehicle 8, and the embedded rough house 2 is transported to the designated location by the liftable transfer vehicle 8. The liftable transfer vehicle 8 includes a frame 80, a plurality of running wheels 81 arranged at the bottom of the frame 80, a handrail 82 installed on one side or both sides of the frame 81, a plurality of lifters 83 installed on the top of the frame 81, and a bracket 84 installed on the top of the plurality of lifters 83. The embedded rough house 2 is installed on the bracket 84 through a hoisting operation. The lifter 83 can adjust the height of the embedded rough house 2 through a rope or a rope, so that the embedded rough house 2 can be placed on platforms of different heights. It has strong adaptability and good versatility. A plurality of rollers 85 are arranged on both sides of the bracket 84, and both sides of the steel frame are located on two rows of rollers 85. When the embedded roughcast house 2 needs to be unloaded, the embedded roughcast house 2 is first adjusted to a specified height by the lifter 83, and then the embedded roughcast house 2 is pushed to one side so that the embedded roughcast house 2 slides along the rollers 85 for easy unloading.
[0023] In order to further install the embedded rough house 2 in a narrow space, a cantilever transfer platform 9 is installed on the open side of the main building structure 1. The liftable transfer vehicle 8 is first moved to the cantilever transfer platform 9, and the lifting equipment lifts the embedded rough house 2 onto the liftable transfer vehicle 8, so that the liftable transfer vehicle 8 can receive the embedded rough house 2 from the outside and then transfer it to the installation location, and then the cantilever transfer platform 9 is removed.
[0024] Step 4: Connect the embedded roughcast house 2 to the main structure 1 of the building. After adjusting the embedded roughcast house 2 to the specified position, adjust the screw 31 so that the lower connecting plate 32 is located on the top of the main structure 1 of the building. Use expansion bolts to pass through the anchor holes on the lower connecting plate 32 to connect to the main structure 1 of the building. Then, fix the adjusting screw 31 to the support plate 30 with nuts to achieve mechanical connection between the embedded roughcast house 2 and the main structure 1 of the building. After all the frame connectors 3 are fixed, pour concrete so that the bottom of the embedded roughcast house 2 is connected to the main structure 1 of the building as a whole. At this point, the embedded installation construction of the embedded roughcast house 2 is completed.
[0025] The above embodiments are only some illustrations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.
Claims
1. A construction method for an assembled embedded module building structure, characterized in that: The invention comprises a main building structure and an embedded roughcast house arranged in the main building structure, wherein the embedded roughcast house comprises a bottom plate, a wall plate fixedly arranged on the circumferential direction of the top of the bottom plate, and a top plate fixedly arranged on the top of the wall plate, wherein the bottom plate is composed of a steel frame, a lower thin-walled steel purlin fixedly arranged on the steel frame, and a lower thermal insulation and sound insulation layer, wherein the thermal insulation and sound insulation layer is arranged between the lower thin-walled steel purlin and the steel frame; the wall plate is composed of a middle thin-walled steel purlin and a middle thermal insulation layer; the top plate is composed of an upper thin-walled steel purlin and an upper thermal insulation layer; The construction method comprises the following steps: Step 1: assemble the embedded roughcast house. Fix a plurality of frame connectors on the outside of the steel frame. The frame connector includes a support plate fixedly installed on the steel frame, an adjusting screw detachably installed on the support plate, and a lower connecting plate fixedly arranged at the bottom of the adjusting screw; fix connecting boxes on the top, bottom and side of the thin-walled steel purlin, install the wall panels on the bottom plate, and connect them in the connecting boxes by passing bolts through the steel frame. Two adjacent wall panels are fixedly connected by passing bolts through two adjacent connecting boxes; fix connecting boxes on the circumference of the upper thin-walled steel purlin. After the installation of the four wall panels is completed, the top plate is hoisted to the top of the four wall panels. The top plate and the four wall panels are fixedly connected by passing bolts through two adjacent connecting boxes to form a heat-insulating and sound-proof embedded roughcast house with a heavy chassis and a light wall top; Step 2: hoisting the built-in roughcast room, remove the adjusting screw on the frame connector, install the lifting ring on the support plate, install four lifting rings symmetrically on both sides of the built-in roughcast room, install lifting ropes on the lifting rings, install the tops of the four lifting ropes on the balance hanger, and use the lifting equipment to hoist the balance hanger; Step three, transporting the embedded roughcast house, setting a liftable transfer vehicle in the main structure of the building, hoisting the embedded roughcast house onto the liftable transfer vehicle, and transporting the embedded roughcast house to a designated location by the liftable transfer vehicle; the liftable transfer vehicle includes a frame, a plurality of running wheels arranged at the bottom of the frame, a handrail installed on one side of the frame, a plurality of lifters installed at the top of the frame, and a bracket installed on the top of the plurality of lifters, and the embedded roughcast house is installed on the bracket; Step 4: Connect the embedded rough house to the main structure of the building. After adjusting the embedded rough house to the specified position, adjust the screw so that the lower connecting plate is located on the top of the main structure of the building. Use expansion bolts to pass through the lower connecting plate and connect it to the main structure of the building. Then fix the adjusting screw to the support plate with nuts. After all the frame connectors are fixed, pour concrete to connect the bottom of the embedded rough house to the main structure of the building as a whole.
2. The construction method of the assembled embedded module building structure according to claim 1 is characterized in that: A door frame and / or a window frame is arranged on the wall panel, a door leaf is mounted on the door frame, and a window leaf is mounted on the window frame.
3. The construction method of the assembled embedded module building structure according to claim 1 or 2, characterized in that: The connection box is a hollow box-shaped structure with one side open, and the operator performs the connection operation from the open side.
4. The construction method of the assembled embedded module building structure according to claim 1, characterized in that: In the step 1, when the wall panel is connected to the steel frame, an operation hole is provided on the side of the steel frame, and the bolts connecting the bottom plate and the steel frame are inserted through the operation hole.
5. The construction method of the assembled embedded module building structure according to claim 1 is characterized by: In the step 2, the outer dimensions of the balancing hanger are larger than those of the built-in roughcast room, and the four hanging ropes are arranged in a trumpet shape opening upward.
6. The construction method of the assembled embedded module building structure according to claim 1, characterized in that: A cantilever transfer platform is installed on one side of the main structure of the building, and the liftable transfer vehicle is first moved to the cantilever transfer platform. The lifting equipment lifts the embedded rough house onto the liftable transfer vehicle, so that the liftable transfer vehicle can receive the embedded rough house from the outside and then transfer it to the installation site, and then dismantle the cantilever transfer platform.
7. The construction method of the assembled embedded module building structure according to claim 1, characterized in that: In the step three, a plurality of rollers are arranged on both sides of the bracket, and both sides of the steel frame are located on the rollers.