Design and assembly method for full-tenon-and-mortise modified gypsum assembly type building component
Through the design of fully mortise and tenon modified gypsum prefabricated building components, combined with modular steel frame node boxes and modified gypsum materials, the connection and performance deficiencies of existing prefabricated building components have been solved, efficient and reliable connection and thermal insulation and sound insulation performance have been achieved, the whole life cycle cost has been reduced, and the needs of green buildings have been met.
Patent Information
- Application Number
- CN202510887357.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-09-05
AI Technical Summary
The existing connection methods of prefabricated building components have problems such as insufficient node performance, low shear strength, poor seismic ductility, low efficiency, large errors, poor quality consistency, high maintenance costs, poor thermal insulation performance, insufficient waterproof performance, and poor sound insulation performance. It is difficult to meet the development needs of green buildings and high-quality buildings.
The design adopts a fully mortise and tenon modified gypsum prefabricated building component design. Through the mortise and tenon connections between beams, columns, wall panels, floor slabs, stairs and door and window frames, combined with modular steel skeleton node boxes and modified gypsum materials, a differentiated mortise and tenon connection method is adopted, using glass fiber reinforced gypsum and steel gypsum composite mortise and tenon, built-in aerogel insulation layer and basalt fiber belt and other materials to achieve efficient and reliable connection and insulation performance.
It improves the integrity and stability of the building structure, enhances the shear resistance and seismic resistance, reduces the cost of the entire life cycle, improves the thermal insulation and sound insulation performance, meets the use requirements of high-rise buildings, and complies with the concept of green buildings.
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Figure CN120592341A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of construction engineering, and specifically relates to a design and assembly method of a fully mortise and tenon modified gypsum assembled building component. Background Art
[0002] With the rapid development of building industrialization, prefabricated buildings have become an industry development trend due to their advantages such as high efficiency and environmental protection. However, the existing prefabricated building component connection methods mostly use welding, bolt connection or grouting sleeve connection, etc. These connection methods have many problems, such as insufficient node performance, welding quality relying on manual operation, low shear strength (15-25MPa), poor seismic ductility (inter-story displacement angle 1 / 200); low efficiency, slow manual assembly speed (10㎡ / hour), large errors, and poor quality consistency; complex specifications, a wide variety of components, high mold costs, poor interchangeability; high maintenance costs, the need for regular anti-corrosion treatment, and high life cycle costs.
[0003] Furthermore, traditional building components need improvement in thermal insulation, waterproofing, and sound insulation. Exterior wall insulation is prone to falling off, reducing thermal effectiveness. Weak seals at the joints between door and window frames and walls cause heat loss and rainwater seepage. Floor slabs offer poor sound insulation, impacting indoor comfort. Existing prefabricated building components have limited potential for improvement in these areas, making them difficult to meet the demands of green and high-quality building development. Summary of the Invention
[0004] In order to solve the above problems, the present invention provides a design and assembly method of a fully mortise and tenon modified gypsum prefabricated building component.
[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: a design of a fully mortise and tenon modified gypsum prefabricated building component, including beams, columns, wall panels, floor slabs, stairs and door and window frames, the beams and columns are connected by mortise and tenon, the columns are vertically connected by mortise and tenon, and the cross intersection nodes of the columns and beams are connected with modular steel skeleton node boxes, the modular steel skeleton node boxes have reserved standardized mortise and tenon openings, which are spliced and installed with the beams and columns, the wall panels and beams are connected by mortise and tenon, the wall panels and columns are connected by mortise and tenon, the wall panels and floor slabs are connected by plug-in straight mortise and tenon, and the wall panels and door and window frames are connected by stepped multi-pass sealed mortise and tenon.
[0006] Preferably, the wall panels include exterior wall panels and interior wall panels, and the two adjacent groups of exterior wall panels are connected by concave-convex mortise and tenon joints, and the mortise and tenon joints of the concave-convex mortise and tenon joints are embedded with sealing strips, and the tenons of the concave-convex mortise and tenon joints are sprayed with a hydrophobic aerogel coating, and the two adjacent groups of interior wall panels are connected by flat-end mortise and tenon joints and snap-fit methods, and the mortise and tenon joints of the flat-end mortise and tenon joints are embedded with basalt fiber belts and spring steel sheet snap-fits.
[0007] Preferably, the beams and columns on the lower floors are connected with glass fiber reinforced gypsum mortise and tenon joints, the beams and columns on the higher floors are connected with steel-gypsum composite mortise and tenon joints, the two groups of columns on the lower floors are connected with cross mortise and tenon joints, and the two groups of columns on the higher floors are connected with steel-gypsum composite mortise and tenon joints.
[0008] Preferably, the exterior wall panels have a built-in aerogel insulation layer, the interior wall panels have pre-buried pipeline troughs, the floor panels have a built-in impact-resistant rubber particle layer, and the stairs have pre-buried steel frames suitable for high-rise buildings.
[0009] A method for assembling a fully mortise and tenon modified gypsum assembled building component comprises the following steps:
[0010] (1) Modular design of components: Taking 600mm as the basic module, the component sizes are designed according to multiples of the module to ensure interchangeability. A mortise and tenon type library is constructed, and 8 types of standard mortise and tenon interfaces are adopted;
[0011] (2) Component processing and production: According to the design drawings, high-precision molds and automated production lines are used to produce components such as beams, columns, wall panels, floor panels, stairs, door and window frames;
[0012] (3) Foundation construction and layout: Carry out foundation construction in accordance with the requirements of the building design. After the foundation reaches the design strength, carry out construction layout. Use total stations, levels and other measuring instruments to accurately measure and set out the building's axis, column positions, beam positions and other control lines to provide accurate positioning basis for component installation;
[0013] (4) Column installation: Starting from the corners or positioning axes of the building, install the columns in the designed order. The column installation adopts a layered reinforcement structure. The columns on the lower floors are vertically connected with cross mortise and tenon joints, and the columns on the upper floors are connected with steel-gypsum composite mortise and tenon joints. During installation, align the tenon of the lower column with the mortise groove of the upper column, slowly drop it into place, and use nano-SiO2 modified fast-hardening gypsum slurry to pour the connection seam for reinforcement;
[0014] (5) Beam installation: After the column installation is completed and the temporary support is stable, the beam installation is carried out. The beam installation adopts a layered reinforcement structure. The beams and columns on the lower floors are connected with glass fiber reinforced gypsum mortise and tenon joints, and the high floors are connected with steel gypsum composite mortise and tenon joints. The tenon of the beam is inserted into the mortise groove of the column or modular steel skeleton node box, and the elevation and horizontal position of the beam are adjusted. The mechanical arm injects epoxy structural adhesive to reinforce the modular steel skeleton node box. The modular steel skeleton node box is filled with foamed gypsum adhesive to ensure that the connection between the beam and the column is firm and reliable.
[0015] (6) Wall panel installation: First install the exterior wall panels. Adjacent exterior wall panels are connected by concave and convex mortise and tenon joints. Sealing strips are embedded in the mortise and tenon grooves. The tenons are sprayed with hydrophobic aerogel coating before splicing to ensure the waterproof and thermal insulation performance of the wall. When installing the interior wall panels, adjacent interior wall panels are connected by flat mortise and tenon joints and snap-fit joints. Basalt fiber strips and spring steel sheet snap-fit joints are embedded in the mortise and tenon grooves. They are installed one by one in sequence. The verticality and horizontality of the wall panels are adjusted to ensure the flatness of the wall surface. The wall panels are connected to the reserved mortise and tenon grooves of the beams and columns. The wall panels are connected to the floor slabs by plug-in straight mortise and tenon joints. The straight mortise of the wall panels is inserted into the reserved mortise and tenon grooves of the floor slabs. Then, the foamed gypsum glue is used to fill and fix them to achieve a reliable connection.
[0016] (7) Door and window frame installation: After the wall panels are installed, the door and window frames are installed. The door and window frames are connected to the wall panels with stepped multi-pass sealing mortise and tenon joints. Sealing materials are filled in the mortise and tenon joint structure to ensure the sealing performance and installation firmness of the doors and windows.
[0017] (8) Floor slab installation: After the beams and wall panels are installed, hoist the floor slab, align the plug-in straight tenon of the floor slab with the tenon groove of the wall panel, and slowly lower it into place. Adjust the elevation and position of the floor slab to ensure that the floor slab is installed smoothly. Use foamed gypsum glue to fill and fix the mortise and tenon structure.
[0018] (9) Staircase installation: According to the designed location and elevation of the stairs, the pre-buried steel frame staircase components are hoisted into place, connected to the floor and wall through trapezoidal mortise and tenon structures, and reinforced with epoxy resin;
[0019] (10) Node processing and sealing: Check all mortise and tenon connection nodes to ensure the reliability of the node connection.
[0020] Preferably, the eight types of standard mortise and tenon joints in step (2) are socket mortise and tenon, node box, straight mortise and tenon, trapezoidal mortise and tenon, concave-convex mortise and tenon, snap-fit mortise and tenon, composite steel mortise and tenon, and stepped mortise and tenon.
[0021] The present invention adopts the above solution to achieve the following beneficial effects:
[0022] 1. The fully mortise-and-tenon modified gypsum prefabricated building components adopt the mortise-and-tenon connection method. The beams and columns, columns and columns, wall panels and beams, wall panels and columns, etc. are tightly engaged through the mortise-and-tenon structure, forming a connection system similar to the traditional wooden structure. It can effectively transfer loads and improve the integrity and stability of the building structure. In particular, modular steel skeleton node boxes are set at the cross intersections of beams and columns, and standardized mortises are reserved for splicing with beams and columns. This further enhances the bearing capacity and shear resistance of the nodes, allowing the building to maintain good structural performance under natural disasters such as earthquakes.
[0023] 2. In view of the different stress characteristics of low-rise and high-rise buildings, differentiated mortise and tenon joint designs are adopted. Glass fiber reinforced gypsum mortise and tenon joints are used between beams and columns on low floors, and cross mortise and tenon joints are used between columns. This meets the stress requirements of low floors while reducing costs. Steel-gypsum composite mortise and tenon joints are used on high floors, giving full play to the high strength of steel and the lightweight properties of gypsum, effectively improving the load-bearing capacity and seismic performance of high-rise buildings, and making the building structure design more reasonable and scientific.
[0024] 3. Modified gypsum is used as the main material. Modified gypsum has the characteristics of light weight, fire resistance, and sound insulation. In addition, industrial by-product gypsum can be used as raw material to achieve comprehensive resource utilization, reduce natural gypsum mining, and reduce damage to the environment. It is in line with the concept of green building development. At the same time, the production process of modified gypsum has low energy consumption and can effectively reduce carbon emissions.
[0025] 4. The exterior wall panels are equipped with a built-in aerogel insulation layer. Aerogel has an extremely low thermal conductivity coefficient, which can significantly improve the thermal insulation performance of the exterior wall and reduce building energy consumption. The interior wall panels are pre-buried with pipeline troughs to facilitate the installation and maintenance of water and electricity pipelines, avoiding the damage to the structure caused by grooving in the wall in the later stage. The floor slabs are built with an impact-resistant rubber particle layer to effectively absorb impact force and improve the impact resistance and sound insulation performance of the floor slabs. The pre-buried steel frame of the stairs is suitable for high-rise buildings, which enhances the bearing capacity and stability of the stairs and meets the use requirements of high-rise buildings. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a connection diagram of beams and columns of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0027] Figure 2 This is a connection diagram of the wallboard and floorboard of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0028] Figure 3 A bidirectional connection diagram of the wallboard and floorboard of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0029] Figure 4 This is a diagram showing the connection between the staircase and the floor slab of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0030] Figure 5 This is a connection diagram of the exterior wall panels of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0031] Figure 6 This is a connection diagram of the interior wall panels of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0032] Figure 7 A bidirectional connection diagram of the exterior wall panels, beams, and columns of the fully mortise-and-tenon modified gypsum assembled building component of the present invention;
[0033] Figure 8 This is a diagram showing the connection between the door and window frames and the wall panels of the fully mortise and tenon modified gypsum assembled building component of the present invention;
[0034] Figure 9 This is a diagram of the mortise and tenon connections of columns on floors 1 to 6 in an embodiment of the method for assembling a fully mortise and tenon modified gypsum prefabricated building component of the present invention;
[0035] Figure 10 This is a diagram of the mortise and tenon structure of columns on the 7th to 10th floors in an embodiment of the assembly method of a fully mortise and tenon modified gypsum prefabricated building component of the present invention.
[0036] Among them, 1. Beam, 2. Column, 3. Wall panel, 31. Exterior wall panel, 32. Interior wall panel, 4. Floor slab, 5. Stairs, 6. Door and window frames. DETAILED DESCRIPTION
[0037] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0038] like Figures 1-10 As shown, the present invention provides a design of a fully mortise and tenon modified gypsum prefabricated building component, including beams 1, columns 2, wall panels 3, floor slabs 4, stairs 5 and door and window frames 6. The beams 1 and columns 2 are connected by mortise and tenon, and the columns 2 are vertically connected by mortise and tenon. A modular steel skeleton node box is connected at the cross intersection of the column 2 and the beam 1. The modular steel skeleton node box has reserved standardized mortise and tenon openings, which are spliced and installed with the beams 1 and columns 2. The wall panels 3 and beams 1 are connected by mortise and tenon, and the wall panels 3 and columns 2 are connected by mortise and tenon. The wall panels 3 and floor slabs 4 are connected by plug-in straight mortise and tenon, and the wall panels 3 and door and window frames 6 are connected by stepped multi-pass sealed mortise and tenon.
[0039] The wall panels 3 include exterior wall panels 31 and interior wall panels 32. The two adjacent groups of exterior wall panels 31 are connected by concave-convex mortise and tenon joints, and the mortise and tenon joints are embedded with sealing strips, and the tenons of the concave-convex mortise and tenon joints are sprayed with hydrophobic aerogel coating. The two adjacent groups of interior wall panels 32 are connected by flat-end mortise and tenon joints and snap-fit methods, and the mortise and tenon joints are embedded with basalt fiber belts and spring steel sheet snap-fits. The exterior wall panels 31 have built-in aerogel insulation layer, the interior wall panels 32 have pre-buried pipeline troughs, the floor slabs 4 have built-in impact-resistant rubber particle layers, and the stairs 5 have pre-buried steel frames suitable for high-rise buildings.
[0040] Glass fiber reinforced gypsum mortise and tenon joints are used between the beams 1 and columns 2 on the lower floors, steel-gypsum composite mortise and tenon joints are used between the beams 1 and columns 2 on the higher floors, cross mortise and tenon joints are used between the two groups of columns 2 on the lower floors, and steel-gypsum composite mortise and tenon joints are used between the two groups of columns 2 on the higher floors.
[0041] A method for assembling fully mortise and tenon modified gypsum prefabricated building components comprises the following steps (taking the mortise and tenon joints of a 10-story apartment as an example):
[0042] (1) Modular design of components: The dimensions of the beams, columns, wall panels, floor slabs and other components of the 10-story apartment were planned. The cross-section of the beams and columns was 400×400mm, and the dimensions of the exterior wall panels were 3000×600×150mm. The floor slabs and other components were also designed based on the modular design to ensure accurate connection between the components and reduce construction errors.
[0043] (2) Component processing and manufacturing: beams and columns are cast with modified gypsum using high-precision molds, and Q460C steel cores are precisely embedded in the molds. The steel core cross-section accounts for 15%. With the help of positioning brackets and BIM models, the position error of the steel core is ensured to be within ±1mm. The surface of the steel core is hot-dip galvanized for corrosion protection. The thickness of the galvanized layer is not less than 80μm. The shear resistance of the mortise and tenon joints is 35MPa. The exterior wall panels are produced using an automated production line with a size of 3000×600×150mm. A 30mm thick aerogel insulation layer is built in. The aerogel is evenly laid inside the wall panels using a vacuum adsorption process. The concave and convex tenons of the exterior wall panels are processed with high precision. The mortise and tenon grooves are 20mm deep and 30mm wide, and the tenon size is precisely matched with them. The error is controlled within ± 0.5mm, a sealing strip installation groove is preset in the mortise and tenon to facilitate the subsequent embedding of the sealing strip, and the surface of the tenon is pre-treated to prepare for the spraying of the hydrophobic aerogel coating, ensuring that the coating thickness is 0.5-1mm and evenly covered, so that the concave and convex tenon joints are sealed with the aerogel, achieving a sound insulation effect of 55dB. Floor slabs with floating mortise and tenon grooves are produced, and the mortise and tenon groove width is 4mm larger than the tenon to accommodate the ±4mm thermal deformation requirement. During the floor slab pouring process, impact-resistant rubber particles with a particle size of 5-8mm and a volume share of 15% are evenly added according to design requirements. The mortise and tenon grooves are precisely processed using CNC machining equipment to ensure the dimensional accuracy of the mortise and tenon grooves. At the same time, the floor slab surface is flattened, and the flatness error does not exceed ±1mm.
[0044] (3) Foundation construction and layout: The foundation construction was carried out according to the apartment design drawings. After the foundation concrete strength reached 100% of the design strength, the construction layout was carried out using a total station and a level. First, the main axis of the building was measured and laid out, with an error controlled within ±2mm.
[0045] Then, control lines such as column and beam positions are accurately measured based on the main axis. The column position deviation does not exceed ±3mm, and the beam position deviation does not exceed ±2mm, providing an accurate positioning reference for subsequent component installation.
[0046] (4) Column installation: Columns are installed starting from the corner positioning axis of the apartment. Columns on the 1st to 6th floors are vertically connected using cross mortise and tenon joints, and columns on the 7th to 10th floors are connected using steel-gypsum composite mortise and tenon joints. During installation, the lower-level columns are lifted using a tower crane, and their tenons are slowly aligned with the tenons of the upper-level columns and lowered into place. A laser plumb bob is used to monitor the verticality of the columns in real time. Once in place, nano-SiO2 modified fast-hardening gypsum slurry is immediately used to grout the joints. During the grouting process, a vibrator is used to lightly vibrate to ensure that the grouting is dense. After the gypsum slurry has initially solidified, the temporary support is removed.
[0047] (5) Beam installation: After the columns are installed and the temporary supports are stable, the beams are installed. The beams and columns of the 1-6 floors are connected by glass fiber reinforced gypsum mortise and tenon joints, and the 7-10 floors are connected by steel gypsum composite mortise and tenon joints. The beams are hoisted so that the tenons of the beams are inserted into the tenons of the columns or modular steel skeleton node boxes. The elevation and horizontal position of the beams are adjusted using a high-precision level and total station. The elevation deviation is controlled within ±2mm, and the horizontal position deviation is controlled within ±3mm. After the adjustment is in place, the modular steel skeleton node boxes are reinforced by accurately injecting epoxy structural adhesive using a robotic arm. At the same time, the node boxes are filled with foamed gypsum adhesive to ensure that the connection between the beams and columns is firm and reliable.
[0048] (6) Wall panel installation: First install the exterior wall panels, align the tenon of the exterior wall panel with the sealing strip with the tenon of another exterior wall panel sprayed with hydrophobic aerogel coating, slowly splice, and use a special clamp to apply a pressure of 0.5MPa to the splicing to fully compress the sealing strip to ensure a tight splicing. During the installation process, use a ruler and a level to check the verticality and horizontality of the exterior wall panels. The verticality deviation shall not exceed ±3mm, and the horizontality deviation shall not exceed 2mm / m. After installing every 3-5 exterior wall panels, check and adjust the flatness of the entire wall surface to ensure that the wall surface is flat. When installing interior wall panels, the adjacent interior wall panels shall be Use flat mortise and tenon joints and snap-on connections, embed basalt fiber tapes and spring steel clips in the mortise and tenon grooves, install the interior wall panels one by one, and adjust the verticality and horizontality of the wall panels by adjusting the adjustable supports at the bottom. Use an infrared level for real-time monitoring during the installation process to ensure the wall surface is flat. Match the wall panels with the reserved mortise and tenon grooves of the beams and columns. Apply an appropriate amount of modified gypsum adhesive to the mortise and tenon joints to enhance the connection strength. Use plug-in straight mortise and tenon joints between the wall panels and the floor slabs. Insert the straight mortise of the wall panels into the reserved mortise and tenon grooves of the floor slabs, and then use foamed gypsum glue to fill and fix them. During the filling process, ensure that the foamed gypsum glue is full and has no voids.
[0049] (7) Installation of door and window frames: After the wall panels are installed, the door and window frames are installed. The door and window frames are connected to the wall panels with stepped multi-pass sealed mortise and tenon joints. The mortise and tenon joints are filled with waterproof sealant, thermal insulation cotton and other sealing materials in sequence. Before installation, the door and window frames are inspected to ensure that their dimensional accuracy and surface quality meet the requirements. During installation, the door and window frames are temporarily fixed to the wall panels with expansion bolts. Then, the verticality and horizontality of the door and window frames are adjusted by adjusting the gaskets. The deviation is controlled within ±2mm. After adjustment, the mortise and tenon joints are tightly connected and the gaps are sealed with sealant to ensure the sealing performance and installation firmness of the doors and windows.
[0050] (8) Floor slab installation: After the beams and wall panels are installed, use a tower crane to hoist the floor slab, align the plug-in straight tenon of the floor slab with the tenon groove of the wall panel, and slowly lower it into place. Use a level and a ruler to adjust the elevation and position of the floor slab. The elevation deviation is controlled within ±2mm, and the surface flatness deviation does not exceed ±3mm. After it is in place, inject elastic grouting material into the mortise and tenon structure. The grouting material is micro-expansion polyurethane grouting material. Use pressure grouting method and control the grouting pressure at 0.3-0.5MPa to ensure that the grouting material is densely filled. After the grouting material solidifies, conduct acceptance inspection on the floor slab.
[0051] (9) Staircase installation: According to the design position and elevation of the stairs, the pre-buried steel frame staircase components are hoisted into place and connected to the floor and wall through the trapezoidal mortise and tenon structure. Before installation, the mortise and tenon size and position of the staircase components are checked. During installation, the position and elevation of the stairs are accurately controlled using a total station and a level, and the deviation is controlled within
[0052] ±3mm. After the connection is completed, use epoxy resin to reinforce the mortise and tenon joints. When applying the epoxy resin, ensure uniform coverage without any missing coating. After the epoxy resin is cured, remove the temporary support and conduct the staircase acceptance inspection.
[0053] (10) Node treatment and sealing: All mortise and tenon joints are comprehensively inspected, with a focus on key locations such as beam-column joints, wall panel joints, and floor slab joints. Nodes with gaps or loose connections are filled and sealed with sealants, waterproof mortar, and other materials. Nodes subject to greater stress, such as beam-column joints, are reinforced with reinforcements to ensure the reliability of the node connections. After the inspection is completed, the mortise and tenon joint structure of the entire apartment is inspected to ensure compliance with design and specification requirements.
[0054] Performance Verification and Standard Comparison
[0055] index Modified gypsum mortise and tenon Traditional welded joints Advantage Analysis Shear strength 25-35MPa 15-25MPa 40% increase in strength Inter-story displacement angle 1 / 300 1 / 200 50% improvement in earthquake resistance Assembly efficiency 50㎡ / hour 10㎡ / hour 400% increase in efficiency Maintenance costs Maintenance-free Regular anti-corrosion / reinforcement Reduce life cycle costs by 60%
[0056] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.
Claims
1. A design of a fully mortise and tenon modified gypsum assembled building component, characterized in that: It includes beams, columns, wall panels, floor slabs, stairs and door and window frames. The beams and columns are connected with mortise and tenon joints, the columns are connected with mortise and tenon joints vertically, and the cross intersection nodes of the columns and beams are connected with modular steel skeleton node boxes. The modular steel skeleton node boxes have reserved standardized mortise and tenon joints, which are spliced and installed with the beams and columns. The wall panels and beams are connected with mortise and tenon joints, the wall panels and columns are connected with mortise and tenon joints, the wall panels and floor slabs are connected with plug-in straight mortise and tenon joints, and the wall panels and door and window frames are connected with stepped multi-pass sealed mortise and tenon joints.
2. The design of a fully mortise and tenon modified gypsum assembled building component according to claim 1, characterized in that: The wall panels include exterior wall panels and interior wall panels. Two adjacent sets of exterior wall panels are connected by using concave and convex mortise and tenon joints, and the mortise and tenon joints have sealing strips embedded in them. The tenons of the concave and convex mortise and tenon joints are sprayed with a hydrophobic aerogel coating. Two adjacent sets of interior wall panels are connected by using flat mortise and tenon joints and snap-fit methods, and the mortise and tenon joints have basalt fiber strips and spring steel sheet snap-fits embedded in them.
3. The design of a fully mortise and tenon modified gypsum assembled building component according to claim 1 is characterized in that: The beams and columns on the lower floors are connected with glass fiber reinforced gypsum mortise and tenon joints, the beams and columns on the higher floors are connected with steel-gypsum composite mortise and tenon joints, the two groups of columns on the lower floors are connected with cross mortise and tenon joints, and the two groups of columns on the higher floors are connected with steel-gypsum composite mortise and tenon joints.
4. The design of a fully mortise and tenon modified gypsum assembled building component according to claim 2, characterized in that: The exterior wall panels have a built-in aerogel insulation layer, the interior wall panels have pre-buried pipeline ducts, the floor panels have a built-in impact-resistant rubber particle layer, and the stairs have pre-buried steel frames suitable for high-rise buildings.
5. The method for assembling a fully mortise and tenon modified gypsum assembled building component according to any one of claims 1 to 4, characterized in that: The steps include: (1) Modular design of components: Taking 600 mm as the basic module, the component sizes are designed according to multiples of the module to ensure interchangeability. A mortise and tenon type library is constructed, and 8 types of standard mortise and tenon interfaces are adopted; (2) Component processing and production: According to the design drawings, high-precision molds and automated production lines are used to produce beams, columns, wall panels, floor slabs, stairs and door and window frames; (3) Foundation construction and layout: Carry out foundation construction in accordance with the requirements of the building design. After the foundation reaches the design strength, carry out construction layout. Use total station and level measuring instruments to accurately measure and set out the building's axis, column position, and beam position control lines to provide accurate positioning basis for component installation; (4) Column installation: Starting from the corners or positioning axes of the building, install the columns in the designed order. The column installation adopts a layered reinforcement structure. The columns on the lower floors are vertically connected with cross mortise and tenon joints, and the columns on the upper floors are connected with steel-gypsum composite mortise and tenon joints. During installation, align the tenon of the lower column with the mortise groove of the upper column, slowly drop it into place, and use nano-SiO2 modified fast-hardening gypsum slurry to pour the connection seam for reinforcement; (5) Beam installation: After the column installation is completed and the temporary support is stable, the beam installation is carried out. The beam installation adopts a layered reinforcement structure. The beams and columns on the lower floors are connected with glass fiber reinforced gypsum mortise and tenon joints, and the high floors are connected with steel gypsum composite mortise and tenon joints. The tenon of the beam is inserted into the mortise groove of the column or modular steel skeleton node box, and the elevation and horizontal position of the beam are adjusted. The mechanical arm injects epoxy structural adhesive to reinforce the modular steel skeleton node box. The modular steel skeleton node box is filled with foamed gypsum adhesive to ensure that the connection between the beam and the column is firm and reliable. (6) Wall panel installation: First install the exterior wall panels. Adjacent exterior wall panels are connected by concave and convex mortise and tenon joints. Sealing strips are embedded in the mortise and tenon grooves. The tenons are sprayed with hydrophobic aerogel coating before splicing to ensure the waterproof and thermal insulation performance of the wall. When installing the interior wall panels, adjacent interior wall panels are connected by flat mortise and tenon joints and snap-fit joints. Basalt fiber strips and spring steel sheet snap-fit joints are embedded in the mortise and tenon grooves. They are installed one by one in sequence. The verticality and horizontality of the wall panels are adjusted to ensure the flatness of the wall surface. The wall panels are connected to the reserved mortise and tenon grooves of the beams and columns. The wall panels are connected to the floor slabs by plug-in straight mortise and tenon joints. The straight mortise of the wall panels is inserted into the reserved mortise and tenon grooves of the floor slabs. Then, the foamed gypsum glue is used to fill and fix them to achieve a reliable connection. (7) Door and window frame installation: After the wall panels are installed, the door and window frames are installed. The door and window frames are connected to the wall panels with stepped multi-pass sealing mortise and tenon joints. Sealing materials are filled in the mortise and tenon joint structure to ensure the sealing performance and installation firmness of the doors and windows. (8) Floor slab installation: After the beams and wall panels are installed, hoist the floor slab, align the plug-in straight tenon of the floor slab with the tenon groove of the wall panel, and slowly lower it into place. Adjust the elevation and position of the floor slab to ensure that the floor slab is installed smoothly. Use foamed gypsum glue to fill and fix the mortise and tenon structure. (9) Staircase installation: According to the designed location and elevation of the stairs, the pre-buried steel frame staircase components are hoisted into place, connected to the floor and wall through trapezoidal mortise and tenon structures, and reinforced with epoxy resin; (10) Node processing and sealing: Check all mortise and tenon connection nodes to ensure the reliability of the node connection.
6. The method for assembling a fully mortise and tenon modified gypsum assembled building component according to claim 5, characterized in that: The eight types of standard mortise and tenon joints in step (2) are socket mortise and tenon, node box, straight mortise and tenon, trapezoidal mortise and tenon, concave-convex mortise and tenon, snap-fit mortise and tenon, composite steel mortise and tenon, and stepped mortise and tenon.
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