An earthquake-resistant disaster prevention zero-carbon house system and construction method

Abstract

The application provides an earthquake-resistant disaster prevention zero-carbon house system and a building method, and mainly relates to the technical field of green buildings. The earthquake-resistant disaster prevention zero-carbon house system can be fully disassembled and reused, and comprises a bottom support component, an interlayer component, a support column, a balcony structure, a hall structure and a roof structure. The method adopts a modular design concept, and each component is connected through standardized bolts, so that full disassembly, full assembly and reuse are realized, the generation of construction waste is greatly reduced, and the "double carbon" target is met. Triangle trusses, rectangular trusses and other stable structures are integrated into the structure, and the elastic buffer characteristics of the steel structure bolt connection node are matched, so that excellent earthquake resistance and disaster prevention performance are achieved. The weight of the components is designed according to the manual carrying standard, large lifting equipment is not needed, the assembly efficiency is high, and the application scenarios are wide. At the same time, through energy-saving design such as insulation board and roof insulation layer, combined with component reuse to reduce carbon emissions, a practical scheme is provided for the fusion development of green buildings and prefabricated buildings.

Description

Technical Field

[0001] This invention mainly relates to the field of green building technology, specifically a fully reusable earthquake-resistant and disaster-prevention zero-carbon housing system and its construction method. Background Technology

[0002] With the advancement of global "dual carbon" goals and the acceleration of prefabricated building industrialization, the drawbacks of traditional construction methods are becoming increasingly prominent. On the one hand, the components of traditional cast-in-place buildings are mostly for single use after demolition, generating construction waste that accounts for more than 50% of the total urban waste, and the carbon emissions throughout the building's life cycle account for nearly 40% of global emissions, seriously restricting the sustainable development of the ecological environment. On the other hand, in areas prone to natural disasters such as earthquakes and floods, traditional buildings have weak earthquake and disaster resistance capabilities, and post-disaster reconstruction relies on large-scale equipment and a large amount of manpower, with a cycle of several months, making it difficult to meet the urgent needs of emergency resettlement.

[0003] While existing prefabricated buildings have improved on-site construction pollution to some extent, they still have many limitations: some components have low standardization, the disassembly and assembly process is complex and easily causes damage to components, and the reuse rate is less than 30%; the structural design focuses on assembly efficiency and ignores the core needs of earthquake resistance and disaster prevention, the bolted connection nodes are too rigid and lack a buffer energy dissipation mechanism; the equipment system has poor compatibility with the building structure, the pipeline layout is fixed, and it is easy to break and be damaged during disassembly, making it impossible to reuse at the same time; in particular, the roof structure components of traditional steel structure houses are large and heavy, and the assembly must rely on large lifting equipment, which not only has high construction costs, but is also limited by site conditions (such as mountainous areas, post-disaster sites, etc., where large equipment is difficult to enter), resulting in extremely low disassembly and assembly efficiency, which seriously affects the overall construction and reuse progress of the building.

[0004] Against this backdrop, developing a housing system that features standardized components, convenient assembly and disassembly, earthquake-resistant structure, and zero-carbon operation has become crucial for addressing the pain points of traditional buildings and promoting the transformation and upgrading of the construction industry. It is of great practical significance for achieving the "dual carbon" goal, improving disaster prevention and mitigation capabilities, and ensuring people's livelihood needs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fully reusable earthquake-resistant and disaster-prevention zero-carbon housing system and construction method. It enables standardized production of components, rapid disassembly and reuse, significantly reducing carbon emissions and construction waste; it enhances earthquake resistance and disaster prevention capabilities through optimized structural design, ensuring safe use; it adapts to the needs of multiple application scenarios, balancing practicality and economy, and promoting the development of the construction industry towards a green, circular, and sustainable direction.

[0006] To achieve the above objectives, the present invention employs the following technical solution: A fully reusable earthquake-resistant, disaster-prevention, and zero-carbon housing system includes a bottom support component, inter-floor components, support columns, a balcony structure, a lobby structure, and a roof structure. The inter-floor components are fixedly connected to the bottom support component, and several support columns are fixedly connected to the inter-floor components. The balcony structure and lobby structure are fixedly connected to the outside of the support columns, and the inter-floor components are fixedly connected to the top of the support columns. The roof structure is fixedly installed on the top of the support columns by bolts. A steel structure staircase is fixedly installed between the support columns and the inter-floor components by bolts. The support columns are made of square steel pipes.

[0007] Furthermore, the interlayer component includes a ring beam, which has upper and lower layers. The ring beam includes several square steel pipe beams, which are fixedly connected to the side of the support column by bolts to form the ring beam. Several rectangular trusses are fixedly connected at the connection between the upper ring beam and the support column. The rectangular trusses include several rectangular frames, and reinforcing ribs are fixedly provided in the rectangular frames. A floor is laid on the rectangular trusses and the upper ring beam.

[0008] Furthermore, the bottom support component includes a concrete base, on which a support steel plate is fixedly installed, and interlayer components are installed on the support steel plate by bolts.

[0009] Furthermore, the roof structure includes a modular truss, which is bolted to the top of the support column. The top of the modular truss has a connecting seat, on which a roof panel is fixedly installed. A composite insulation board is fixedly installed between the modular truss and the roof panel. A rainwater trough is fixedly installed on the side of the support column away from the modular truss. The modular truss includes edge modules, connecting modules, and middle modules. The edge modules, connecting modules, and middle modules are symmetrically connected to the middle modules on both sides. Connecting rods are bolted between the edge modules and connecting modules, and between the connecting modules and middle modules. The roof panel is supported by channel steel. The edge modules, connecting modules, and middle modules of the modular truss are all made of square steel pipes.

[0010] Furthermore, the balcony structure includes a support rod, and a grid platform is fixedly connected between the top of the support rod and the support column by bolts. A balcony floor is laid on the grid platform, and a guardrail is fixedly installed on the outer perimeter of the grid platform. The support column has a reserved space for a balcony door in the corresponding part of the balcony structure.

[0011] Furthermore, the entrance hall structure includes entrance hall support columns, on which entrance hall ring beams are fixedly connected. An entrance hall support frame is fixedly installed between the entrance hall ring beams and the entrance hall support columns. An entrance hall triangular truss is fixedly connected to the entrance hall ring beams. An entrance hall opening is made at the location of the support columns corresponding to the entrance hall structure.

[0012] Furthermore, the support column is made of square steel pipe, has windows, and is equipped with insulation boards and interior and exterior building cladding panels.

[0013] A method for constructing a fully reusable, earthquake-resistant, disaster-prevention, and zero-carbon housing system includes the following steps: Prefabrication: The bottom support components, inter-floor components, support columns, balcony structures, entrance hall structures, roof structures and various auxiliary components are prefabricated in the factory according to standardized modules. All components are marked with bolt connection holes and assembly markings. Foundation construction: Pour a concrete base at the designated site, pre-embed fixing bolts in the concrete base, and after the base strength reaches the standard, install the supporting steel plate and level it. Bottom layer assembly: Fix the bottom ring beam to the supporting steel plate by installing nuts on the pre-embedded bolts, then hoist the supporting columns and fix them to the bottom ring beam by bolting the foot columns and bolts, install the bottom rectangular truss and lay the floor; Functional structure installation: Connect the balcony structure's support rods, grille platform, and railings to the designated locations on the support columns using bolts, and lay the balcony floor. Assemble the entrance hall support columns, entrance hall ring beams, and entrance hall triangular trusses to complete the fixing of the balcony and entrance hall structures; install a steel structure staircase between the support columns and inter-floor components. Upper layer assembly: If it is a multi-story building, the upper ring beam and rectangular truss are fixed to the top of the bottom support column with bolts, and the above steps are repeated to complete the assembly of each floor; Roof installation: The disassembled modular trusses are hoisted to the top of the support columns in groups and fixed with bolts. After the modular trusses are installed, the composite insulation board, roof panel and rain gutter are installed in sequence. Enclosure and equipment installation: Install insulation boards and interior and exterior building panels on the support columns, install windows, balcony doors and lobby facilities according to the reserved positions, integrate the detachable pipelines of water supply, drainage, HVAC and electrical systems, and complete the overall assembly; Disassembly and reuse: When disassembly is required, remove the enclosure facilities, equipment pipelines, roof structure, functional structure, inter-floor components and bottom support components in the reverse order of assembly. After cleaning and inspecting each component, transfer it to a new site and repeat the above assembly process.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The components are made of square steel pipes and channel steel. The square steel pipes support the columns and ring beams, which have high strength and strong resistance to deformation. Combined with the channel steel roof support, the overall seismic stability and load-bearing capacity of the structure are further improved. At the same time, square steel pipes and channel steel are easy to process and have controllable weight, which provides material guarantee for manual disassembly and reuse.

[0015] Easy to assemble and disassemble with high reusability: Each component adopts a standardized design and is connected in a modular manner by bolts. The disassembly and assembly process is simple, and the weight of each component is controllable, making it easy to assemble and disassemble. In particular, the roof structure adopts a modular design of square steel tubes. After disassembly, the weight of each module is light (suitable for manual handling), and no large lifting equipment is required. 2-3 people can complete the entire process of roof disassembly and assembly. The components are undamaged after disassembly and can be transported to different sites for reuse multiple times, which greatly reduces the material consumption and construction waste generated throughout the building's life cycle and is in line with the concept of circular economy.

[0016] Excellent seismic and disaster prevention performance: The structure adopts a steel frame, combined with modular trusses, triangular trusses, rectangular trusses and stiffeners to form a multi-stabilization system. The bolted connection nodes have good elastic buffering characteristics, which can effectively disperse seismic forces. The combination design of the bottom concrete base and supporting steel plate enhances the stability of the foundation. The overall structure meets the relevant seismic and disaster prevention specifications and can effectively protect the safety of the building and users in natural disasters such as earthquakes.

[0017] Zero-carbon, environmentally friendly, energy-efficient, and highly industrialized component production reduces energy consumption and carbon emissions during on-site construction; the building adopts energy-saving structures such as insulation boards and roof insulation layers, reducing energy consumption during operation; at the same time, the reuse of components avoids carbon emissions from the production of new materials, achieving the goal of zero-carbon operation throughout the building's entire life cycle, which aligns with the national "dual-carbon" strategy.

[0018] High adaptability to various scenarios: The system can flexibly adjust the number of floors, unit types, and functional layouts according to usage needs, making it suitable for various scenarios such as post-disaster temporary resettlement, rural housing construction, scenic area supporting facilities, and temporary commercial buildings; The modular roof's lack of reliance on large equipment allows for rapid assembly even in sites where large machinery cannot easily access (such as remote rural areas, post-disaster ruins, and mountain scenic areas); Standardized components facilitate centralized procurement and supply chain management through an internet platform, reducing production, transportation, and construction costs and improving project economics.

[0019] The structure is complete and highly practical: it integrates the functions of balconies, halls, stairs and other structures, with reserved installation positions for windows and doors in the supporting columns, and is equipped with insulation, decoration and equipment pipeline installation design, taking into account both living comfort and ease of use, and solving the problems of single function and insufficient comfort of existing temporary buildings or prefabricated buildings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom support component structure of the present invention; Figure 3 This is a schematic diagram of the interlayer component structure of the present invention; Figure 4This is a schematic diagram of the roof structure of the present invention; Figure 5 This is a schematic diagram of the balcony structure of the present invention; Figure 6 This is a schematic diagram of the entrance hall structure of the present invention; Figure 7 This is a flowchart of the construction method of the present invention; Figure 8 This is a flowchart of the disassembly and reuse process of the present invention.

[0021] The following are the labels in the attached diagram: 1. Bottom support component; 2. Inter-floor component; 3. Support column; 4. Balcony structure; 5. Lobby structure; 6. Roof structure; 11. Concrete base; 12. Supporting steel plate; 21. Ring beam; 22. Rectangular truss; 221. Rectangular frame; 222. Reinforcing rib; 30. Window; 41. Support rod; 42. Grille platform; 43. Guardrail; 51. Lobby support column; 52. Lobby ring beam; 53. Lobby support frame; 60. Modular truss; 61. Roof panel; 62. Composite insulation board; 63. Rain gutter; 601. Edge module; 602. Connecting module; 603. Middle module; 604. Connecting rod. Detailed Implementation

[0022] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0023] Combined with appendix Figures 1-8 A fully reusable earthquake-resistant and disaster-prevention zero-carbon housing system includes a bottom support component 1, inter-floor components 2, support columns 3, a balcony structure 4, a lobby structure 5, and a roof structure 6. The inter-floor components 2 are fixedly connected to the bottom support component 1. Several support columns 3 are fixedly connected to the inter-floor components 2. The balcony structure 4 and the lobby structure 5 are fixedly connected to the outside of the support columns 3. The inter-floor components 2 are fixedly connected to the top of the support columns 3. The roof structure 6 is fixedly installed on the top of the support columns 3 by bolts. A steel structure staircase is fixedly installed between the support columns 3 and the inter-floor components 2 by bolts. The support columns 3 are made of square steel pipes.

[0024] The interlayer component 2 includes a ring beam 21, which has upper and lower layers. The ring beam 21 comprises several square steel pipe beams, which are bolted together to the side of the support column 3 to form the ring beam 21. Several rectangular trusses 22 are fixedly connected at the connection between the upper ring beam 21 and the support column 3. Each rectangular truss 22 includes several rectangular frames 221, and reinforcing ribs 222 are fixedly installed within each rectangular frame 221. A floor is laid on top of the rectangular trusses 22 and the upper ring beam 21, forming a stable triangular structure. If it is necessary to install building pipes, etc., the reinforcing ribs 222 can be broken.

[0025] The bottom support member 1 includes a concrete base 11, on which a support steel plate 12 is fixedly installed, and an interlayer member 2 is installed on the support steel plate 12 by bolts.

[0026] The roof structure 6 includes a modular truss 60, which is bolted to the top of the support column 3. The top of the modular truss 60 has a connecting seat, on which a roof panel 61 is fixedly installed. A composite insulation board 62 is fixedly installed between the modular truss 60 and the roof panel 61. A rainwater trough 63 is fixedly installed on the side of the support column 3 away from the modular truss 60. The modular truss 60 includes an edge module 601, a connecting module 602, and a middle module 603. The edge module 601, connecting module 602, and middle module 603 are symmetrically connected to the middle module 603 with connecting modules 602 and edge modules 601. Connecting rods 604 are bolted between the edge module 601 and the connecting module 602, and between the connecting module 602 and the middle module 603. The roof panel 61 is supported by channel steel. The edge module 601, connecting module 602, and middle module 603 of the modular truss 60 are all made of square steel pipes. The modular truss 60 can be divided into more modules according to actual needs. The multi-modal truss can effectively reduce the weight of individual modules, facilitate installation and disassembly, solve the problems of large and difficult hoisting of traditional steel roof structural components, and greatly improve the efficiency of disassembly and assembly and site adaptability. The connecting rod 604 can effectively improve the overall strength and compressive strength of the modular truss 60.

[0027] The balcony structure 4 includes a support rod 41. The top of the support rod 41 is fixedly connected to the support column 3 via bolts to a grid platform 42. A balcony floor is laid on the grid platform 42. A guardrail 43 is fixedly installed on the outer perimeter of the grid platform 42. The support column 3 has a reserved space for a balcony door in the corresponding part of the balcony structure 4.

[0028] The entrance hall structure 5 includes an entrance hall support column 51, an entrance hall ring beam 52 is fixedly connected to the entrance hall support column 51, an entrance hall support frame 53 is fixedly installed between the entrance hall ring beam 52 and the entrance hall support column 51, an entrance hall triangular truss 54 is fixedly connected to the entrance hall ring beam 52, and an entrance hall opening is made at the location of the support column 3 corresponding to the entrance hall structure 5.

[0029] The support column 3 is made of square steel pipe, and a window 30 is opened on the support column 3. Insulation board and building interior and exterior decorative panels are installed on the support column 3. The window 30 is made by breaking the support column 3 and fixing the upper and lower beams of the window to the support columns 3 on both sides of the window 3 with bolts.

[0030] A method for constructing a fully reusable, earthquake-resistant, disaster-prevention, and zero-carbon housing system includes the following steps: Prefabrication: The bottom support components 1, inter-floor components 2, support columns 3, balcony structure 4, entrance hall structure 5, roof structure 6, and various auxiliary components are prefabricated in the factory according to standardized modules. All components are marked with bolt connection holes and assembly markings. Foundation construction: Pour concrete base 11 at the designated site, pre-embed fixing bolts in concrete base 11, and after the base strength reaches the standard, install support steel plate 12 and level it. Bottom layer assembly: Fix the bottom ring beam 21 to the supporting steel plate 12 by installing nuts on the pre-embedded bolts. Then, hoist the supporting column 3 and fix it to the bottom ring beam 21 by bolting the foot column and bolts. Install the bottom rectangular truss 22 and lay the floor. Functional structure installation: Connect the support rods 41, grid platform 42 and railing 43 of the balcony structure 4 with bolts at the designated position of the support column 3 and lay the balcony floor; assemble the entrance hall support column 51, entrance hall ring beam 52 and entrance hall triangular truss 53 to complete the fixing of the balcony and entrance hall structure; install the steel structure staircase between the support column 3 and the inter-floor component 2; Upper layer assembly: If it is a multi-story building, the upper ring beam 21 and the rectangular truss 22 are fixed to the top of the bottom support column 3 with bolts, and the above steps are repeated to complete the assembly of each floor. Roof installation: The disassembled modular trusses 60 are hoisted into groups and fixed to the top of the support columns 3 with bolts to form a complete roof truss system; after the modular trusses 60 are installed, the composite insulation board 62, roof panel 61, and rainwater gutter 63 are installed in sequence. Enclosure and equipment installation: Install insulation boards and interior and exterior building panels on support columns 3, install windows, balcony doors and lobby facilities according to the reserved positions, integrate detachable pipelines of water supply and drainage, HVAC and electrical systems, and complete the overall assembly; Disassembly and reuse: When disassembly is required, remove the enclosure facilities, equipment pipelines, roof structure, functional structure, inter-floor components and bottom support components in the reverse order of assembly. After cleaning and inspecting each component, transfer it to a new site and repeat the above assembly process.

[0031] Combined with appendix Figure 7-8 : Construction process: First, prefabricate all components in the factory according to the standard module and mark them for assembly. The concrete base was poured on site and the supporting steel plates were fixed in place to complete the foundation construction; Secure the bottom ring beam, assemble the truss, lay the floor, and then install the support columns; The functional structures, such as balconies, entrance halls, and steel staircases, were installed in sequence. If it is a multi-story building, repeat the assembly steps of the bottom layer to complete the construction of the upper layer; Assemble modular trusses (edge / connection / intermediate modules) → fix connecting rods with bolts → install composite insulation boards → fix roof panels (channel steel supports) → install rainwater gutters; Install insulation boards, decorative panels, and doors and windows; integrate detachable pipelines for water, electricity, heating, and ventilation; and complete the assembly after successful testing.

[0032] Disassembly and reuse process: Prepare specialized tools and first remove the interior and exterior trim panels, insulation boards, doors, windows, and other enclosure facilities; Disconnect the quick-connectors of the equipment pipelines, and disassemble the water supply and drainage pipes and electrical wiring in sequence; Remove the rain gutters → Remove the roof panels (channel steel supports) → Remove the composite insulation panels → Disassemble the modular truss connecting rods → Remove each module; Dismantle functional components such as the balcony, entrance hall structure, and steel structure staircase; For multi-story buildings, the upper-level components must be removed first, followed by the removal of the bottom-level supporting columns, trusses, and ring beams in sequence. All disassembled components were cleaned, rust removed, inspected, and sorted and packaged. Qualified components are transferred to a new site and reassembled according to the construction process to achieve reuse.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do 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. A fully reusable earthquake-resistant and disaster-prevention zero-carbon housing system, comprising a bottom support component (1), inter-floor components (2), support columns (3), balcony structure (4), entrance hall structure (5), and roof structure (6), characterized in that: The bottom support member (1) is fixedly connected to the inter-layer member (2), and several support columns (3) are fixedly connected in the inter-layer member (2). The support columns (3) are respectively fixedly connected to the outside of the balcony structure (4) and the entrance hall structure (5). The top of the support column (3) is fixedly connected to the inter-layer member (2). The top of the support column (3) is fixedly installed with the roof structure (6) by bolts. The support column (3) and the inter-layer member (2) are fixedly installed with steel structure stairs by bolts. The support column (3) is made of square steel pipe. All the above steel structure connection points are directly connected by bolts or corner columns are pre-welded at the connection points and then fixedly connected by bolts. The roof structure (6) includes a modular truss (60). The modular truss (60) is fixedly connected to the top of the support column (3) by bolts. The top of the modular truss (60) has a connecting seat. The roof panel (61) is fixedly installed on the connecting seat. A composite insulation board (62) is fixedly installed between the modular truss (60) and the roof panel (61). A rainwater trough (63) is fixedly installed on the side of the support column (3) away from the modular truss (60). The modular truss (60) includes an edge module (601), a connecting module (602), and a middle module (603). The edge module (601), the connecting module (602), and the middle module (603) are symmetrically connected to the connecting module (602) and the edge module (601) on both sides. The edge module (601) and the connecting module (602), and the connecting module (602) and the middle module (603) are all connected by bolts. The roof panel (61) is supported by channel steel. The edge module (601), the connecting module (602), and the middle module (603) of the modular truss (60) are all made of square steel pipes.

2. The earthquake-resistant, disaster-prevention, and zero-carbon housing system that can be fully disassembled and reused according to claim 1, characterized in that: The interlayer component (2) includes a ring beam (21), which has two layers, upper and lower. The ring beam (21) includes several square steel pipe beams. Several beams are fixedly connected to the side of the support column (3) by bolts to form the ring beam (21). Several rectangular trusses (22) are fixedly connected at the connection between the upper ring beam (21) and the support column (3). The rectangular trusses (22) include several rectangular frames (221). Reinforcing ribs (222) are fixedly provided in the rectangular frames (221). The rectangular trusses (22) and the upper ring beam (21) are covered with flooring.

3. The earthquake-resistant, disaster-prevention, and zero-carbon housing system that can be fully disassembled and reused according to claim 1, characterized in that: The bottom support member (1) includes a concrete base (11), on which a support steel plate (12) is fixedly installed, and an interlayer member (2) is installed on the support steel plate (12) by bolts.

4. The earthquake-resistant, disaster-prevention, and zero-carbon housing system that can be fully disassembled and reused according to claim 1, characterized in that: The balcony structure (4) includes a support rod (41), the top of the support rod (41) is fixedly connected to the support column (3) by bolts to the grid platform (42), the balcony floor is laid on the grid platform (42), the guardrail (43) is fixedly installed on the outer perimeter of the grid platform (42), and the support column (3) is reserved for the balcony door in the part corresponding to the balcony structure (4).

5. The earthquake-resistant, disaster-prevention, and zero-carbon housing system that can be fully disassembled and reused according to claim 1, characterized in that: The entrance hall structure (5) includes an entrance hall support column (51), an entrance hall ring beam (52) is fixedly connected to the entrance hall support column (51), an entrance hall support frame (53) is fixedly installed between the entrance hall ring beam (52) and the entrance hall support column (51), an entrance hall triangular truss (54) is fixedly connected to the entrance hall ring beam (52), and an entrance hall opening is made at the location of the support column (3) corresponding to the entrance hall structure (5).

6. The earthquake-resistant, disaster-prevention, and zero-carbon housing system that can be fully disassembled and reused according to claim 1, characterized in that: The support column (3) is made of square steel pipe, and a window (30) is provided on the support column (3). Insulation board and building interior and exterior decorative panels are installed on the support column (3).

7. A method for constructing a fully disassembled and reusable earthquake-resistant, disaster-prevention, zero-carbon housing system, characterized in that, Includes the following steps: Prefabrication: The bottom support components (1), inter-floor components (2), support columns (3), balcony structure (4), entrance hall structure (5), roof structure (6) and various auxiliary components are prefabricated in the factory according to the standardized modular design. All components are reserved with bolt connection holes and marked with assembly markings. Foundation construction: Concrete base (11) is poured at the designated site. Fixing bolts are pre-embedded in the concrete base (11). After the base strength reaches the standard, support steel plate (12) is installed and leveled. Bottom layer assembly: Fix the bottom ring beam (21) to the supporting steel plate (12) by installing nuts on the pre-embedded bolts, then hoist the supporting column (3) and fix it to the bottom ring beam (21) by bolting the foot column and bolts, install the bottom rectangular truss (22) and lay the floor; Functional structure installation: Connect the support rods (41), grid platform (42) and railing (43) of the balcony structure (4) to the designated position of the support column (3) by bolts and lay the balcony floor. Assemble the entrance hall support column (51), entrance hall ring beam (52) and entrance hall triangular truss (53) to complete the fixing of the balcony and entrance hall structure. Install the steel structure staircase between the support column (3) and the inter-floor components (2). Upper layer assembly: If it is a multi-story building, the upper ring beam (21) and the rectangular truss (22) are fixed to the top of the bottom support column (3) with bolts, and the above steps are repeated to complete the assembly of each floor; Roof installation: The disassembled modular truss (60) is hoisted to the top of the support column (3) in groups and fixed with bolts. After the modular truss (60) is installed, the composite insulation board (62), roof board (61), and rainwater gutter (63) are installed in sequence. Enclosure and equipment installation: Install insulation boards and interior and exterior building panels on the support columns (3), install windows, balcony doors and hall facilities according to the reserved positions, integrate the detachable pipelines of water supply and drainage, HVAC and electrical systems, and complete the overall assembly; Disassembly and reuse: When disassembly is required, remove the enclosure facilities, equipment pipelines, roof structure, functional structure, inter-floor components and bottom support components in the reverse order of assembly. After cleaning and inspecting each component, transfer it to a new site and repeat the above assembly process.

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