Module prefabricating and embedding building construction method

Abstract

The invention relates to the technical field of building construction, in particular to a module prefabricating and embedding building construction method. The method comprises the following steps: S1, deepening a BIM drawing: optimizing secondary structure nodes of different parts according to an original design drawing to obtain an optimized BIM drawing; s2, key node drawing deepening, wherein key nodes are further optimized according to the optimized BIM graph; and S3, secondary structure template design, wherein a secondary structure prefabricated template is designed according to the deepening design drawing. According to the method, secondary structure typesetting is visualized through BIM modeling, meanwhile, the secondary structure construction technology is optimized, the quality defects in a traditional construction technology are overcome, the construction progress is accelerated, the construction cost is reduced, and the module prefabricating and embedding building construction technology is formed; according to the construction technology, quality defects in secondary structure construction and potential quality hazards caused by secondary repairing can be eliminated, meanwhile, the construction progress is accelerated, the consumption of formworks and auxiliary measures is reduced, and the construction quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to a module prefabrication and embedding construction method. Background Art

[0002] In order to actively respond to the country's green environmental protection concept, promote the "green" prefabricated construction of industrial buildings, and meet the requirements of energy conservation and environmental protection, prefabrication and assembly are added to the traditional industrial building construction process, especially in the secondary structure construction. Industrial buildings are usually "high-span" buildings, that is, high floor height and large span. During the secondary structure construction process, it is usually necessary to set up work scaffolding to complete the masonry and secondary structure pouring. After pouring the concrete, it is necessary to wait for a period of time to remove the formwork and secondary structure concrete maintenance.

[0003] According to the existing technology, in the construction process of secondary structure of traditional non-assembled buildings, it is usually necessary to set up scaffolding to complete the masonry and secondary structure pouring. After pouring the concrete, it is necessary to wait for a period of time to remove the formwork and maintain the secondary structure concrete. There are quality defects in the construction of the secondary structure. At the same time, secondary repairs will bring quality risks, resulting in slow construction progress, and a large consumption of formwork and auxiliary measures, which reduces the construction quality.

[0004] In summary, the research and development of modular prefabricated embedded construction methods is still a key issue that needs to be urgently addressed in the field of construction technology. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a module prefabrication and embedding construction method.

[0006] To achieve the above object, the present invention provides the following technical solutions: The module prefabrication embedded construction method includes the following steps: S1. BIM drawing deepening: According to the original design drawings, optimize the secondary structure nodes in different parts to obtain the optimized BIM drawings; S2. Deepening of key node drawings: Further optimize key nodes according to the optimized BIM drawings; S3. Secondary structure formwork design: Design the secondary structure prefabricated formwork according to the detailed design drawings; S4. Confirmation of node construction method: Determine the construction process according to different construction nodes, and the connection structure between two sections of prefabricated parts should be carried out according to the functional requirements of specific parts; S5. Installation of prefabricated secondary structure: The prefabricated secondary structure is installed in sections and blocks, and the nodes are poured with concrete three times; S6, post-casting of joint nodes; S7. Maintenance and site cleaning after work: Maintenance should be carried out for no less than 14 days after three concrete pourings.

[0007] The present invention is further configured as follows: in step S1, the following steps are included: S11. According to the wall materials and wall dimensions of the building drawing, use BIM modeling technology to visualize and intuitively form a BIM layout drawing; S12. Divide the secondary structure construction into sections according to the BIM layout drawing and select appropriate section points; S13. Optimize the segmented formwork design to facilitate the construction of each secondary structure.

[0008] The present invention is further configured as follows: in step S2, the following steps are included: S21. Analyze and study each node based on the in-depth BIM diagram, and come up with the best node approach through group discussion; S22. Decompose the corresponding nodes.

[0009] The present invention is further configured as follows: in step S3, the following steps are included: S31. Design the template support combination scheme according to the in-depth BIM node diagram; S32. When the node is more complex, it should be split into 2 to 3 modules for combination, and the combined template should assist the reinforcement method.

[0010] The present invention is further configured as follows: in step S4, the following steps are included: S41. For the construction nodes of common structural columns, a new type of tooth joint concrete structural column construction process is adopted, including the following steps: Prefabricated fetal membrane: Prefabricate the fetal membrane of the tooth joint structural column according to the design drawings and construction production schedule requirements; Installation of steel cage and tie-wall reinforcement: Tie the steel cage according to the design drawings and specifications, and the tie-wall reinforcement shall not be less than 1000mm; S42. For the door frame construction node, a prefabricated assembled concrete structure door frame construction process is adopted, including the following steps: Prefabricated membrane: Prefabricate assembled concrete door frame according to design drawings and construction production schedule. The length and width are determined according to the design drawings. Pay attention to the grooves at the bolt hole positions. Fabrication and installation of steel cages and installation of punched square steel plates and reserved holes; S43. For the window sill capping construction node, a prefabricated integral type seam-free window sill capping concrete structure construction process is adopted, including the following steps: Prefabricated membrane: According to the design drawings and construction production schedule requirements, prefabricate the integral non-caulking window sill top concrete structure, and the length and width are determined according to the design drawings; Fabrication, installation of steel cage and installation of drainage pipe: Tie up the steel cage according to the design drawings and specifications, and pay attention to the backflow slope when installing the drainage pipe.

[0011] The present invention is further configured as follows: in step S41, the following steps are included: S411. For the prefabricated part of the tooth-jointed concrete structure column: according to the design drawings and specification requirements, the tooth-shaped membrane is made, and the reserved holes for the tie bars are opened. When the steel cage of the structural column is cut, the length of the lower cast-in-place part and the top cast-in-place reserved part is reserved, and then the steel cage is tied to install the tie bars. After the installation is completed, the structural column concrete is poured, maintained, and the formwork is removed; S412. For the cast-in-place part of the tooth-jointed concrete structure column: when the masonry is built to the reserved position of the floor structural column, install the prefabricated part, adjust the height to be consistent with the mortar joint, use the already built masonry to install and fix the prefabricated part, connect the main reinforcement of the prefabricated part according to the drawings and specifications, and finally pour the concrete of the prefabricated part, maintain it, and remove the formwork.

[0012] The present invention is further configured as follows: in step S42, the following steps are included: S421. Make the concrete structure membrane according to the design dimensions of the drawing, and pay attention to the groove pressing mold; S422. Fabricate and install the steel cage according to the design and specification requirements, weld the punched square steel plate and the reserved installation holes, and use the corresponding diameter pipes for installation and reservation; S423. Pour concrete of corresponding strength according to the design number on the drawing, paying attention to vibration compaction and finishing treatment; S424. Drill holes at the corresponding positions on the wall and install the door frame concrete structure. Note that the depth of the bolts entering the original wall panel concrete should not be less than 20mm; S425. The gaps are sealed with sealing colloid materials.

[0013] The present invention is further configured as follows: in step S43, the following steps are included: S431, making the fetal membrane according to the prefabricated concrete structure; S432. Fabricate and install steel cages according to design and specification requirements, and install drainage pipes according to spacing and return requirements; S433. Pour concrete of corresponding strength according to the design number on the drawing, paying attention to vibration compaction and finishing treatment; S434, install window sill capping; S435. When the left and right walls of the top cover reach the height of the window frame, install and fix the window frame, and pour the flexible colloid material into the indoor and outdoor gaps. Pay attention to the dense pouring, and the sealing colloid material will be applied at the end of the construction.

[0014] The present invention is further configured as follows: in step S5, the following steps are included: S51. Installation of vertical components: The vertical components are welded by reserved steel bars to connect the upper and lower prefabricated components into a whole, or they can be connected by binding; S52. Installation of horizontal components: The horizontal components are welded by reserved steel bars to connect the left and right prefabricated components into a whole. Binding connection can also be used.

[0015] The present invention is further configured as follows: in step S6, casting holes are required to be reserved for the template support of the vertical joint part, and fine stone concrete is cast therein through the casting holes, and the horizontal part is directly cast and then vibrated to be dense. Beneficial Effects

[0016] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects: (1) In the present invention, industrial building construction is completed by deepening BIM drawings, deepening key node drawings, designing secondary structure templates, confirming node construction methods, installing prefabricated secondary structures, pouring joint nodes, maintaining and clearing the site after work. During the secondary structure construction process, masonry and secondary structure pouring can be successfully completed without setting up a work scaffold. The application scenario of the prefabricated assembled concrete secondary structure in non-assembly buildings is mostly assembled buildings, but its construction principles and technologies can also be flexibly used in non-assembly buildings to improve construction efficiency and quality. Through this construction process, quality defects in secondary structure construction and quality risks caused by secondary repairs can be eliminated, while speeding up the construction progress, reducing the consumption of templates and auxiliary measures, and improving construction quality.

[0017] (2) In the present invention, the secondary structure layout is visualized through BIM modeling, and the secondary structure construction process is optimized at the same time to solve the quality defects in the traditional construction process, speed up the construction progress, reduce the construction cost, and form a modular prefabricated embedded construction process technology. Through continuous summary and improvement of this process in construction, a construction method is finally formed, which can be widely used in the secondary structure construction of construction projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A construction process flow chart for modular prefabrication and embedding construction methods; Figure 2 Schematic diagram of secondary structure layout for modular prefabrication and embedded construction method; Figure 3 It is a schematic diagram of the connection structure of the tooth joint concrete structure column in the second embodiment of the module prefabrication embedded construction method; Figure 4 It is a schematic elevation diagram of the connection structure of the prefabricated assembled concrete structure door frame in the second embodiment of the module prefabrication and embedding construction method; Figure 5 It is a schematic elevational plan view of the connection structure of the prefabricated assembled concrete structure door frame in the second embodiment of the module prefabrication and embedding construction method; Figure 6 This is a schematic diagram of the connection structure of the prefabricated integral type seam-free window sill capping concrete structure in the second embodiment of the module prefabrication and embedding construction method. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Example 1: Please refer to Figure 1 - Figure 6 As shown, the module prefabrication embedded construction method includes the following steps: Step 1: BIM drawing deepening: According to the original design drawings, optimize the secondary structure nodes in different parts to obtain the optimized BIM drawings, which is convenient for prefabricated formwork design, including the following steps: 11) According to the wall materials and wall dimensions of the building drawing, use BIM modeling technology to visualize and intuitively form a BIM layout drawing; 12) Divide the secondary structure construction into sections according to the BIM layout drawing and select appropriate section points; 13) Optimize the template design of each section to facilitate the construction of each secondary structure, such as Figure 2 shown.

[0022] Step 2: Deepen the drawings of key nodes: Further optimize the key nodes according to the optimized BIM diagram to facilitate template design while ensuring construction quality, including the following steps: 21) According to the in-depth BIM diagram, analyze and study each node, and obtain the optimal node approach through QC group discussion; 22) Decompose the corresponding nodes to pave the way for the subsequent secondary structure template design.

[0023] Step 3: Secondary structure formwork design: Design the secondary structure prefabricated formwork according to the detailed design drawings, including the following steps: 31) Design the template support combination plan according to the in-depth BIM node diagram; 32) When the node is more complex, it should be split into 2 to 3 modules for combination. The combined formwork should be supplemented with reinforcement methods to avoid expansion and explosion of the formwork during the prefabrication process.

[0024] Step 4. Confirmation of node construction method: Determine the construction process according to different construction nodes (such as ordinary structural columns, ring beams, door side columns, window side columns, window sill tops, etc. When these secondary structures are located in different positions, certain specific functional requirements are also different. The inner walls are generally not required to be waterproof except for the kitchen and bathroom, while the outer walls need to further improve the waterproofing process). The connection structure between the two sections of prefabricated parts needs to be carried out according to the functional requirements of the specific parts, including the following steps: 41) For the construction nodes of ordinary structural columns, a new type of tooth-jointed concrete structural column construction process is adopted, which includes the following steps: Prefabricated fetal membrane: Prefabricate the fetal membrane of the tooth joint structural column according to the design drawings and construction production schedule requirements; Installation of steel cage and tie-wall reinforcement: Tie the steel cage according to the design drawings and specifications, and the tie-wall reinforcement shall not be less than 1000mm; 42) For the door frame construction node, the prefabricated assembled concrete structure door frame construction process is adopted, including the following steps: Prefabricated membrane: Prefabricate assembled concrete door frame according to design drawings and construction production schedule. The length and width are determined according to the design drawings. Pay attention to the grooves at the bolt hole positions. Fabrication and installation of steel cages, punching of square steel plates, and installation of reserved holes (corresponding drainage pipes can be used); 43) For the construction nodes of window sill capping, the prefabricated integral type non-caulking window sill capping concrete structure construction process is adopted, including the following steps: Prefabricated membrane: According to the design drawings and construction production schedule requirements, prefabricate the integral non-caulking window sill top concrete structure, and the length and width are determined according to the design drawings; Fabrication, installation of steel cage and installation of drainage pipe: Tie up the steel cage according to the design drawings and specifications, and pay attention to the backflow slope when installing the drainage pipe.

[0025] Step 5: Prefabricated secondary structure installation: The prefabricated secondary structure is installed in sections and blocks, and the nodes are poured with concrete three times, including the following steps: 51) Vertical component installation: The vertical components are welded by reserved steel bars to connect the upper and lower prefabricated components into a whole, or they can be connected by binding; 52) Installation of horizontal components: The horizontal components are welded by reserved steel bars to connect the left and right prefabricated components into a whole. Binding connection can also be used.

[0026] Step 6: Post-casting of joint nodes: Casting holes need to be reserved for the formwork support of the vertical joints, and fine stone concrete is poured through the casting holes. The horizontal parts are directly cast and then vibrated to make them dense.

[0027] Step 7. Maintenance and site cleaning: After three concrete pours, maintenance should be carried out for no less than 14 days, and materials should be removed at the same time to ensure that the site is clean after the work is completed.

[0028] In this embodiment, before deepening the BIM drawings, construction preparation is first carried out (including carefully familiarizing with the drawings, preparing and approving the construction plan, providing technical briefings to construction personnel, deepening the BIM drawings, deepening the secondary structure template, secondary structure steel bar binding and concrete pouring, prefabricated secondary structure maintenance, and working tools). The industrial building construction is completed through the module prefabrication embedded construction method, through the BIM drawing deepening, key node drawing deepening, secondary structure template design, node construction method confirmation, prefabricated secondary structure installation, joint node post-pouring, maintenance and site cleaning. During the secondary structure construction process, masonry and secondary structure pouring can be successfully completed without setting up a work frame. The application scenarios of the prefabricated assembled concrete secondary structure in non-assembled buildings are mostly assembled buildings, but its construction principles and technologies can also be flexibly used in non-assembled buildings to improve construction efficiency and quality.

[0029] Example 2: Please refer to Figure 1 - Figure 6 As shown, in the construction method of module prefabrication and embedding, in step 4, the construction process is determined according to different construction nodes, and the connection structure between the two sections of prefabricated parts needs to be carried out according to the functional requirements of the specific parts; In this embodiment, preferably, for the common structural column construction nodes, a new tooth joint concrete structural column construction process (such as Figure 3 As shown, the entire tooth joint concrete structure column is divided into a prefabricated part and a cast-in-place part. The height of the structural column can be determined according to the masonry progress requirements of the day, the steel bar connection method can be formulated according to the specific conditions of the project, and the lap length meets the design specification requirements). For the prefabricated part of the tooth joint concrete structure column: according to the design drawings and specification requirements, a tooth-shaped fetal membrane is made. In order to reduce costs and increase the reuse rate, a wooden mold can be used. At the same time, a reserved hole for tie bars is opened. When the steel cage of the structural column is cut, the lower cast-in-place part and the top cast-in-place reserved part length are reserved. Then the steel cage is tied to install the tie bars. After the installation is completed, the structural column concrete is poured, maintained, and the mold is removed. For the cast-in-place part of the tooth joint concrete structure column: when the masonry is built to the reserved position of the floor slab structural column, the prefabricated part is installed, and the height is adjusted to be consistent with the mortar joint. With the help of the already built masonry, the prefabricated part is installed and fixed. The main reinforcement connection of the prefabricated part is carried out according to the drawings and specification requirements. Finally, the prefabricated part concrete is poured, maintained, and the mold is removed. In this embodiment, a new tooth joint concrete structural column construction process is adopted for the construction nodes of ordinary structural columns, which can be applied to the tooth joint structural column construction in masonry projects. The construction is convenient, the operation is simple, and the economy is high and efficient. It can effectively improve the construction speed and the interference between different professional types of work, and improve the efficiency and quality of the entire masonry construction. In this embodiment, preferably, for the door frame construction node, a prefabricated assembled concrete structure door frame construction process (such as Figure 4 and Figure 5 As shown, taking 100mm door frame and door pile as an example, the depth of the bolt groove should be about 30mm, and the connection between the punched square steel plate and the stirrup should be fixed by welding; the number and spacing of the square plates can be adjusted according to the actual door opening size on site, and should be evenly arranged; the door frame installation bolt holes can be reserved in advance according to the data provided by the door manufacturer), including the following steps: 421) Make the concrete structure membrane according to the design dimensions of the drawing, and pay attention to the groove pressing mold; 422) According to the design and specification requirements, the steel cage shall be manufactured and installed, and the punched square steel plate and the reserved holes shall be welded and installed. Pipes of corresponding diameters may be used for installation; 423) Pour concrete of corresponding strength according to the design number on the drawing, paying attention to vibration compaction and finishing treatment; 424) Drill holes at the corresponding positions on the wall and install the door frame (pile) concrete structure. Note that the depth of the bolts entering the original wall panel concrete should not be less than 20mm; 425) The gaps are sealed with sealing colloid materials; In this embodiment, for the door frame construction node, a prefabricated assembled concrete structure door frame construction process is adopted, and an assembled door frame (pile) membrane is manufactured according to the design drawing. In order to reduce costs and increase the reuse rate, a wooden mold can be used for production, and attention should be paid to surface finishing treatment. When cutting the structural column steel cage, attention should be paid to the control of the protective layer and the installation of embedded parts; this construction process can be applied to the construction of the part with the pile wall on the side of the plate wall in the assembled building. The construction is convenient, the operation is simple, and the economy is high and efficient. It can effectively improve the construction speed and the interference and waiting time between different professional types of work, and improve the overall construction quality of the entire assembled building; In this embodiment, preferably, for the window sill capping construction node, a prefabricated integral type seam-free window sill capping concrete structure construction process (such as Figure 6As shown, the thickness of the bottom of the groove is not less than 100mm. The pre-installed drainage pipe on the outside is fixed on the steel frame when the concrete window sill is prefabricated. It has a self-reflective slope. The pipe diameter is preferably 5mm, and the spacing is about 500mm, which is easy to clean the hole; the flatness and horizontality of the prefabricated window sill should be controlled during prefabrication and installation; when the bottom of the window frame is fixed, a direct installation and fixing method is adopted; the groove depth is designed to be about 5-10mm less than the window frame thickness. When the window frame thickness is large enough, the depth is not less than 30mm; the gap between the window frame and the concrete groove is injected with flexible colloid, and finally the end is sealed with sealant or sealing structural glue; the window sill steel frame is configured according to the design requirements), including the following steps: 431) Making the fetal membrane according to the precast concrete structure; 432) Fabricate and install steel cages according to design and specification requirements, and install drainage pipes according to spacing and return requirements; 433) Pour concrete of corresponding strength according to the design number on the drawing, paying attention to vibration compaction and finishing treatment; 434) Install window sill capping; 435) When the left and right walls of the top cover reach the height of the window frame, install and fix the window frame, and pour the flexible colloid material into the indoor and outdoor gaps. Pay attention to pouring densely and fully to avoid waste and later cleaning. The sealing colloid material should be applied at the end of the construction to avoid pollution; In this embodiment, for the window sill top construction node, a prefabricated integral type seam-free window sill top concrete structure construction process is adopted. The window sill top membrane is manufactured according to the design drawing, and the length is the window frame width + 1200mm. In order to reduce costs and improve the reuse rate, a wooden mold can be used for it. When cutting the steel cage of the structural column, attention should be paid to the control of the protective layer and the installation of the drainage holes. The role of the drainage holes here is: in the later stage, the sealing colloid material cracks, and in the rainy season, water accumulates in the gaps of the window frame, and the water can be discharged through the drainage holes. At the same time, this construction process can be applied to the window sill top construction, which is convenient to construct, simple to operate, economical and efficient, and can effectively improve the construction speed and the interference between different professional trades, improve the efficiency and quality of the entire masonry construction, and reduce the risk of leakage.

[0030] In the present invention, the industrial building construction is completed by embedding the module prefabrication construction method, deepening the BIM drawings, deepening the key node drawings, designing the secondary structure template, confirming the node construction method, installing the prefabricated secondary structure, pouring the joint nodes, maintenance and cleaning the site after the work is completed. In the secondary structure construction process, the masonry and secondary structure pouring can be successfully completed without setting up the facility work frame; the application scenario of the prefabricated assembled concrete secondary structure in non-assembled buildings is mostly assembled buildings, but its construction principles and technologies can also be flexibly used in non-assembled buildings to improve construction efficiency and quality; through this construction process, quality defects in the secondary structure construction and quality risks caused by secondary repairs can be eliminated, while accelerating the construction progress, reducing the consumption of templates and auxiliary measures, and improving the construction quality; Through BIM modeling, the secondary structure layout is visualized, and the secondary structure construction process is optimized to solve the quality defects in traditional construction technology, speed up the construction progress, reduce construction costs, and form a modular prefabricated embedded construction technology. Through continuous summary and improvement of this technology in construction, a construction method was finally formed, which can be widely used in the secondary structure construction of construction projects.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Modular prefabrication embedded construction method, It is characterized in that The following steps are involved: S1. BIM drawing deepening: According to the original design drawings, optimize the secondary structure nodes in different parts to obtain the optimized BIM drawings; S2. Deepening of key node drawings: Further optimize key nodes according to the optimized BIM drawings; S3. Secondary structure formwork design: Design the secondary structure prefabricated formwork according to the detailed design drawings; S4. Confirmation of node construction method: Determine the construction process according to different construction nodes, and the connection structure between two sections of prefabricated parts should be carried out according to the functional requirements of specific parts; S5. Installation of prefabricated secondary structure: The prefabricated secondary structure is installed in sections and blocks, and the nodes are poured with concrete three times; S6, post-casting of joint nodes; S7. Maintenance and site cleaning after work: Maintenance should be carried out for no less than 14 days after three concrete pourings.

2. The modular prefabrication embedded construction method according to claim 1, It is characterized in that In step S1, the following steps are included: S11. According to the wall materials and wall dimensions of the building drawing, use BIM modeling technology to visualize and intuitively form a BIM layout drawing; S12. Divide the secondary structure construction into sections according to the BIM layout drawing and select appropriate section points; S13. Optimize the segmented formwork design to facilitate the construction of each secondary structure.

3. The modular prefabrication and embedding construction method according to claim 2, It is characterized in that In step S2, the following steps are included: S21. Analyze and study each node based on the in-depth BIM diagram, and come up with the best node approach through group discussion; S22. Decompose the corresponding nodes.

4. The modular prefabrication and embedding construction method according to claim 3, It is characterized in that In step S3, the following steps are included: S31. Design the template support combination scheme according to the in-depth BIM node diagram; S32. When the node is more complex, it should be split into 2 to 3 modules for combination, and the combined template should assist the reinforcement method.

5. The modular prefabrication embedded construction method according to claim 1, It is characterized in that In step S4, the following steps are included: S41. For the construction nodes of common structural columns, a new type of tooth joint concrete structural column construction process is adopted, including the following steps: Prefabricated fetal membrane: Prefabricate the fetal membrane of the tooth joint structural column according to the design drawings and construction production schedule requirements; Installation of steel cage and tie-wall reinforcement: Tie the steel cage according to the design drawings and specifications, and the tie-wall reinforcement shall not be less than 1000mm; S42. For the door frame construction node, a prefabricated assembled concrete structure door frame construction process is adopted, including the following steps: Prefabricated membrane: Prefabricate assembled concrete door frame according to design drawings and construction production schedule. The length and width are determined according to the design drawings. Pay attention to the grooves at the bolt hole positions. Fabrication and installation of steel cages and installation of punched square steel plates and reserved holes; S43. For the window sill capping construction node, a prefabricated integral type seam-free window sill capping concrete structure construction process is adopted, including the following steps: Prefabricated membrane: According to the design drawings and construction production schedule requirements, prefabricate the integral non-caulking window sill top concrete structure, and the length and width are determined according to the design drawings; Fabrication, installation of steel cage and installation of drainage pipe: Tie up the steel cage according to the design drawings and specifications, and pay attention to the backflow slope when installing the drainage pipe.

6. The modular prefabrication embedded construction method according to claim 5, It is characterized in that In step S41, the following steps are included: S411. For the prefabricated part of the tooth-jointed concrete structure column: according to the design drawings and specification requirements, the tooth-shaped membrane is made, and the reserved holes for the tie bars are opened. When the steel cage of the structural column is cut, the length of the lower cast-in-place part and the top cast-in-place reserved part is reserved, and then the steel cage is tied to install the tie bars. After the installation is completed, the structural column concrete is poured, maintained, and the formwork is removed; S412. For the cast-in-place part of the tooth-jointed concrete structure column: when the masonry is built to the reserved position of the floor structural column, install the prefabricated part, adjust the height to be consistent with the mortar joint, use the already built masonry to install and fix the prefabricated part, connect the main reinforcement of the prefabricated part according to the drawings and specifications, and finally pour the concrete of the prefabricated part, maintain it, and remove the formwork.

7. The modular prefabrication embedded construction method according to claim 5, It is characterized in that In step S42, the following steps are included: S421. Make the concrete structure membrane according to the design dimensions of the drawing, and pay attention to the groove pressing mold; S422. Fabricate and install the steel cage according to the design and specification requirements, weld the punched square steel plate and the reserved installation holes, and use the corresponding diameter pipes for installation and reservation; S423. Pour concrete of corresponding strength according to the design number on the drawing, paying attention to vibration compaction and finishing treatment; S424. Drill holes at the corresponding positions on the wall and install the door frame concrete structure. Note that the depth of the bolts entering the original wall panel concrete should not be less than 20mm; S425. The gaps are sealed with sealing colloid materials.

8. The modular prefabrication embedded construction method according to claim 5, It is characterized in that In step S43, the following steps are included: S431, making the fetal membrane according to the prefabricated concrete structure; S432. Fabricate and install steel cages according to design and specification requirements, and install drainage pipes according to spacing and return requirements; S433. Pour concrete of corresponding strength according to the design number on the drawing, paying attention to vibration compaction and finishing treatment; S434, install window sill capping; S435. When the left and right walls of the top cover reach the height of the window frame, install and fix the window frame, and pour the flexible colloid material into the indoor and outdoor gaps. Pay attention to the dense pouring, and the sealing colloid material will be applied at the end of the construction.

9. The modular prefabrication embedded construction method according to claim 1, It is characterized in that In step S5, The following steps are involved: S51. Installation of vertical components: The vertical components are welded by reserved steel bars to connect the upper and lower prefabricated components into a whole, or they can be connected by binding; S52. Installation of horizontal components: The horizontal components are welded by reserved steel bars to connect the left and right prefabricated components into a whole. Binding connection can also be used.

10. The modular prefabrication embedded construction method according to claim 9, It is characterized in that In step S6, casting holes are reserved for the template support at the vertical joint part, and fine stone concrete is cast through the casting holes. The horizontal part is directly cast and then vibrated to make it dense.

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