A method for synchronously forming a frame shear structure main body and a secondary structure

Abstract

The application discloses a frame shear structure main body and secondary structure synchronous one-time forming construction method, comprising the following steps: constructing a standardized process flow of frame shear structure main body and secondary structure synchronous one-time forming, installing the secondary structure aluminum mold, binding the steel bars and pouring the concrete in the whole process, inserting the whole process into the main body structure construction stage, canceling the waiting, rework and secondary access process of traditional step-by-step construction, realizing the structure integrated pouring forming, optimizing the aluminum mold fast installation and removal process and improving the overall construction efficiency. The application has the beneficial effects that the construction quality and forming precision of the structure are greatly improved, the construction period is obviously compressed, the construction efficiency is improved, the construction cost is optimized, the resource consumption is reduced, the safety and durability performance of the building structure is greatly improved, the green low-carbon construction is realized, the environmental protection benefit is prominent, the construction standardization and normalization degree is high and the popularization is strong.

Description

Technical Field

[0001] This application belongs to the field of construction technology of frame-shear structure in building engineering, specifically involving a method for simultaneous one-time molding of the main body and secondary structure of a frame-shear structure. It is particularly suitable for the integrated simultaneous construction of secondary structures such as structural columns, lintels, and inverted supports with the main structure's reinforcement, formwork, and concrete in high-rise and super high-rise frame-shear structure buildings. It can be widely applied to the refined and efficient construction of various cast-in-place reinforced concrete frame-shear structure projects such as residential buildings, commercial complexes, and public buildings. Background Technology

[0002] Currently, the construction of frame-shear wall structures in China generally adopts a segmented construction process, with the main structure built first and the secondary structure built later, which is the mainstream traditional construction mode in the industry. The conventional construction process is as follows: first, the main structure shear walls, beams, columns, floor slab reinforcement binding, formwork support, and concrete pouring are completed. After the main structure concrete reaches the design strength and the main structure formwork is removed and masonry construction is completed, the secondary structure structural columns, lintels, and waterproof retaining walls are then constructed, including rebar installation, formwork support, rebar binding, and concrete pouring.

[0003] In the existing construction system, secondary structure construction mostly adopts traditional wooden and steel formwork support technology. The formwork has poor versatility and low assembly accuracy, and needs to be cut and assembled on site. Reinforcing steel construction relies on later rebar anchoring, and the process is independent and lags behind the main construction. Concrete pouring adopts conventional technology, and there is no special construction method for the narrow space and dense rebar scene of secondary structure. The overall construction mode is fragmented and the process is disjointed.

[0004] Overall, the existing technology has the following core difficulties: (1) The construction process is fragmented, resulting in a large loss of construction period. The main structure and the secondary structure are constructed in stages, resulting in a large amount of waiting time and overlapping idle time. The secondary structure needs to be brought to the site after the main structure is completed and the masonry is finished. The overall construction cycle is long, the turnover efficiency of manpower and equipment is low, and it cannot meet the needs of rapid construction of modern buildings.

[0005] (2) There are many hidden dangers in construction quality and poor forming accuracy. Traditional post-installed rebar installation process is prone to problems such as insufficient rebar depth, substandard anchoring force, and rebar displacement. The secondary structure and the main structure have poor integrity and bonding. Traditional formwork support has insufficient rigidity and large splicing gaps. In the narrow space, the concrete is not sufficiently vibrated and is prone to honeycomb, pitting, holes, grout leakage, structural dimension deviation and other quality defects, resulting in a large amount of repair work in the later stage.

[0006] (3) The template has low adaptability and high construction cost. Traditional wooden templates are easy to deform and have a high loss rate. Steel templates are heavy and cumbersome to disassemble and assemble. There is no standardized detailed design for different specifications of structural columns, lintels and inverted supports. The templates have poor versatility and reusability, and need to be customized or modified on site. This results in serious material waste and high labor intensity during construction.

[0007] (4) Fragmented quality control and low standardization. The existing construction mode manages each process independently and lacks an integrated quality control system. The control standards for each link, such as rebar binding, formwork support, concrete pouring and finished product protection, are not uniform and the testing methods are limited, making it difficult to achieve refined quality control throughout the entire process.

[0008] (5) The overall structure is weak and its service performance is limited. The secondary structure is constructed later, resulting in cold joints between it and the main structure. The reliability of the steel reinforcement connection and anchorage is insufficient. The overall structure's seismic resistance, impermeability and crack resistance are difficult to meet the requirements of high-standard building design. The overall durability and safety of the building have shortcomings. Summary of the Invention

[0009] The purpose of this application is to provide a method for the simultaneous one-time molding of the main body and secondary structure of a frame-shear wall structure, which solves the problem of fragmented construction procedures in the domestic frame-shear wall structure construction mode.

[0010] The objective of this application is achieved through the following technical solution: A method for simultaneous one-time molding of the main structure and secondary structure of a frame-shear wall structure includes: constructing a standardized process flow for simultaneous one-time molding of the main structure and secondary structure of the frame-shear wall structure; integrating the entire process of aluminum formwork installation, rebar tying and concrete pouring of the secondary structure into the main structure construction stage; eliminating the waiting, rework and secondary entry processes of traditional step-by-step construction; realizing integrated casting and molding of the structure; and optimizing the rapid installation and removal process of aluminum formwork to improve overall construction efficiency. The standardized process of simultaneous construction and one-time molding of the main structure and secondary structure of a frame-shear wall structure also includes: Construction process coordination: The standardized construction process is as follows: drawing review → 3D aluminum formwork refinement → main structure reinforcement binding → secondary structure reinforcement binding → main structure + secondary structure aluminum formwork synchronous installation and reinforcement → concealed acceptance → synchronous concrete pouring and vibration → curing → formwork removal → finished product protection. Cross-construction: During the intervals between the main structure construction processes, the secondary structure construction is efficiently interspersed to achieve seamless connection between the two processes and eliminate idle and waiting time. Efficient assembly and disassembly of formwork: The assembly and disassembly sequence and operation method of aluminum formwork are optimized. Modular overall assembly and segmented disassembly mode are adopted to simplify the construction process, reduce the intensity of manual labor and improve turnover efficiency; Integrated molding control: The entire process of controlling the structural connection accuracy between the main structure and the secondary structure is carried out to prevent cold joints and structural misalignment, and to achieve overall one-time casting and molding.

[0011] Furthermore, it also includes the detailed design of secondary structure aluminum formwork: During the detailed design stage of the main structure aluminum formwork, the dimensions of the retaining wall, structural columns, lintels and all other secondary structures are checked, accurately positioned and the formwork is specially detailed. Combining the stress characteristics of the frame-shear wall structure, the secondary structure design specifications and the on-site construction conditions, a three-dimensional modeling software is used to build an integrated formwork model of the main structure and secondary structure, so as to realize the refined design of the formwork size, shape, opening and splicing nodes. At the same time, for different house types or frame-shear wall structures of different specifications, the formwork size parameters, structural shape and connection construction are optimized to form a standardized and universal secondary structure aluminum formwork design system.

[0012] Furthermore, the detailed design of secondary structure aluminum formwork also includes the following: Detailed Pre-construction: After the construction drawings are reviewed, the aluminum formwork of the main structure and secondary structure is refined simultaneously. The positioning axes, cross-sectional dimensions and elevation parameters of the structural columns, lintels and waterproof curbs are accurately marked to prevent dimensional deviations and positioning offsets in the later stages. 3D modeling verification: Using BIM 3D modeling software, the main beams, columns, shear walls, floor slabs and secondary structure models are integrated to perform collision verification and spatial verification, optimize formwork splicing nodes, avoid structural steel bars and reserve construction gaps; Template standardization optimization: Standardize the dimensions of standard templates for conventional structural columns and lintels, optimize the template splicing combination method for irregular structures, improve the structure of template corners and splicing ports, and enhance the versatility and turnover rate of templates for different buildings and floors; Parameter solidification: For different types of frame-shear wall structures, the corresponding secondary structure aluminum formwork design parameters, connection methods, and reinforcement points are solidified to form a standardized detailed design ledger to guide batch construction.

[0013] Furthermore, it also includes the connection and reinforcement of secondary structure aluminum formwork: developing a high-strength, high-stability secondary structure aluminum formwork connection and reinforcement system. By optimizing the formwork splicing structure, using special high-strength connectors, and adding a multi-point support and reinforcement system, the overall rigidity and stability of the aluminum formwork are improved, effectively resisting the lateral pressure of concrete pouring and construction live loads, eliminating problems such as formwork deformation, displacement, bulging and grout leakage, and ensuring the dimensional accuracy of the secondary structure.

[0014] Furthermore, the connection and reinforcement of the secondary structure aluminum formwork also includes the following: Standardized splicing connection: Special high-strength bolts and locking pins are used as template connectors to optimize the male and female tenon splicing structure of the template, reduce splicing gaps, improve the integrity and sealing of the template splicing, and eliminate grout leakage from the source; Multi-point reinforcement and support: Based on the cross-sectional dimensions of the secondary structure and the pouring height, vertical supports, horizontal back ribs and tie points are scientifically arranged, and reinforcement points are increased in densely reinforced areas and areas with high lateral pressure to ensure uniform stress on the formwork. Stress verification and control: Before construction, stress calculations are performed on the formwork reinforcement system to ensure that it can withstand the maximum lateral pressure of concrete and construction load. During the pouring process, the formwork status is inspected in real time, and any deviation or loosening is rectified immediately. Adaptation and modification: For irregular secondary structures, fine-tune the reinforcement support points to ensure the fit and stability of the template, while taking into account both construction convenience and structural reliability.

[0015] Furthermore, it also includes the simultaneous binding of secondary structural reinforcement with main structural reinforcement: breaking away from the traditional post-installation reinforcement binding mode, when the main structural reinforcement is bound to the preset elevation and preset position, the secondary structural reinforcement binding operation is carried out simultaneously in the corresponding position, realizing the integrated anchorage connection of the reinforcement of structural columns, lintels and inverted supports to the main beams, slabs and wall reinforcement, clarifying the binding sequence, lap length and anchorage method of reinforcement in each part, ensuring that the reinforcement connection is firm, the stress compliance is compliant and the overall structure is strong.

[0016] Furthermore, the simultaneous binding of secondary structural reinforcement with main structural reinforcement also includes the following: Synchronous interleaving of work processes: During the construction of the main structure walls and beams and slabs reinforcement binding, the positions of the secondary structures are simultaneously located and marked, and the binding of the longitudinal reinforcement of the structural columns, stirrups, lintel reinforcement and lintel distribution reinforcement are completed simultaneously. Standardized anchorage lap splices: Strictly follow design and specification requirements to control the lap length and anchorage depth of secondary structure reinforcement and main structure reinforcement, ensure reliable binding and anchoring of longitudinal reinforcement of structural columns and main beam and slab reinforcement, and tie and fix lintel reinforcement and wall reinforcement to prevent incomplete or short-span reinforcement splices. Binding sequence and fixation: Follow the order of main reinforcement bars first, secondary structural reinforcement bars, and then stirrup reinforcement to avoid cross-interference of reinforcement bars and ensure that the reinforcement bars are arranged in a regular manner and with uniform spacing. Reinforcing bar protection: After the reinforcing bars are tied, protective treatment is carried out to prevent the reinforcing bars from shifting, deforming and contaminating during concrete pouring and formwork installation.

[0017] Furthermore, this also includes the simultaneous pouring and vibration of secondary and main structure concrete: by optimizing the concrete mix ratio, the fluidity, workability and density of the concrete are improved to match the forming requirements of the secondary structure; a combined construction mode of small special vibration equipment and manual vibration is adopted to realize the simultaneous layered pouring and full vibration of the main structure and secondary structure concrete, and to completely avoid quality defects such as honeycomb, pitting, voids and slag inclusions.

[0018] Furthermore, the simultaneous pouring and vibration of concrete for the secondary structure and the main structure also includes the following: Customized concrete mix design: Based on the narrow pouring conditions of secondary structures, the aggregate particle size, water-cement ratio and admixture dosage are optimized to improve the self-flowability and density of concrete, avoid material blockage and segregation problems, and ensure that the narrow space is fully filled; Layered synchronous pouring: Following the principle of main structure first, secondary structure followed by secondary structure and layered symmetry, after the main structure concrete is poured to the corresponding elevation, the secondary structure concrete is poured simultaneously. The pouring speed and layer thickness are strictly controlled to avoid a sudden increase in the side pressure of the formwork. Refined vibration operation: The method of using a micro immersion vibrator as the main method and manual tamping as a supplement is adopted. Focus on vibrating the densely reinforced areas of structural columns and lintels, vibrating point by point, without missing any points or over-vibrating, to ensure that the concrete completely fills the formwork cavity and removes internal air bubbles. Finishing and control: After the pouring is completed, the top and sides of the secondary structure are finished and leveled to connect with the main structure's forming surface, ensuring a smooth and seamless appearance.

[0019] Furthermore, it also includes quality control of secondary structure aluminum formwork construction: establishing a full-process quality control system covering raw materials, formwork construction, steel reinforcement construction, concrete construction and finished product protection, and combining advanced non-destructive testing technology to dynamically monitor and accurately control the entire process of secondary structure construction, identify potential quality hazards, and ensure that the construction quality fully meets the design and specification requirements; The quality control of secondary structure aluminum formwork construction also includes the following: Raw material quality control: Verify the qualifications and test reports of incoming raw materials such as aluminum formwork, connectors, steel bars, cement, sand and gravel, and admixtures to prevent unqualified materials from entering the site; Process quality control: The installation accuracy of the template, the stability of the reinforcement, the spacing of the steel bar binding, the anchorage length, the concrete mix ratio and the quality of pouring and vibration are inspected step by step. After the concealed works are inspected and approved, the next process can be carried out. Structural concrete monitoring: Using non-destructive testing technology for concrete, we monitor the strength, internal density and defects of secondary structural concrete, and accurately identify hidden dangers such as internal pores and cracks. Finished product protection and control: After the concrete is poured, cover it with a membrane for curing, strictly control the curing temperature, humidity and curing period, and protect the finished product after demolding to avoid collision, damage and contamination; Closed-loop rectification mechanism: Establish a quality problem ledger, rectify the problems found in the inspection and verify the items to be closed, so as to realize the closed-loop quality control.

[0020] This application effectively addresses many industry pain points in the construction of secondary structures in traditional frame-shear wall structures through an integrated and innovative construction technology system. It possesses significant technical advantages and beneficial effects in terms of construction quality, schedule efficiency, structural performance, cost control, and environmental protection, as detailed below: 1. Significantly improves structural construction quality and forming accuracy. This application, through three-dimensional refined aluminum formwork detailing, standardized formwork reinforcement, simultaneous rebar tying, and specialized pouring and vibration processes, completely solves quality defects such as grout leakage, formwork bulging, dimensional deviations, honeycomb surface defects, and internal voids in traditional construction; it eliminates the post-installation rebar installation process, preventing problems such as insecure rebar anchoring and rebar misalignment, and eliminating cold joints between the main structure and secondary structure. The overall integrity, flatness, and density of the structure are greatly improved, the first-time acceptance rate of the project is significantly increased, and the cost of subsequent repairs is greatly reduced.

[0021] 2. Significantly shortens the construction period and improves construction efficiency. This application enables the simultaneous construction of the secondary structure and the main structure, eliminating redundant processes such as waiting for procedures, secondary site entry, repeated scaffolding erection, and secondary formwork erection in traditional step-by-step construction. This greatly simplifies the construction process, reduces construction downtime, and shortens the overall construction period by 20% to 30%. At the same time, the standardized aluminum formwork assembly and disassembly process reduces construction difficulty, effectively improves the turnover efficiency of labor and equipment, and adapts to the needs of large-scale and rapid building construction.

[0022] 3. Optimize construction costs and reduce resource consumption. This application significantly increases the turnover rate and reuse rate of formwork through the generalization and standardization of aluminum formwork design, reducing material waste from traditional wooden formwork and non-standard steel formwork; integrated construction reduces labor input, machine hours and repair costs, while simplifying construction procedures, reducing labor intensity, effectively reducing the overall construction cost of the project, and resulting in significant economic benefits.

[0023] 4. Significantly improves the safety and durability of building structures. The secondary structure reinforcement is anchored and tied simultaneously with the main structure, and the concrete is poured as a whole, so that the secondary structure and the main structure form a complete load-bearing unit. This effectively improves the overall seismic resistance, crack resistance, and impermeability of the building, avoids the structural connection weakness caused by post-construction, and significantly improves the stability, safety, and long-term service durability of the building structure.

[0024] 5. Achieve green and low-carbon construction with outstanding environmental benefits. Aluminum alloy formwork is recyclable and has an extremely low loss rate, significantly reducing construction waste compared to traditional wooden formwork; the integrated construction process is centralized, minimizing construction interference and reducing on-site construction dust, noise pollution, and waste emissions, aligning with the industry's development requirements for green building and low-carbon construction.

[0025] 6. High degree of standardization and normalization in construction, and strong applicability. This application forms a complete set of standardized construction techniques and quality control systems with clear parameters, clear processes, and strong operability. It can be adapted to the construction of various frame-shear wall structures, has strong versatility and replicability, and can be widely promoted and applied. It effectively standardizes the construction standards of secondary structures in the industry and promotes the refinement, integration, and efficiency upgrading of building construction technology.

[0026] The aforementioned main solution and its various further alternatives can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of this application, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected in this application, and will not be exhaustively listed here. Detailed Implementation

[0027] The following non-limiting embodiments are used to illustrate this application.

[0028] Example 1 A method for simultaneous one-time molding of the main body and secondary structure of a frame-shear wall structure includes six core technology modules: detailed design of aluminum formwork, simultaneous concrete pouring and vibration, formwork connection and reinforcement, simultaneous rebar binding, integrated molding construction, and full-process quality control. Each module works in coordination and in a closed-loop construction.

[0029] A standardized process for the simultaneous construction and one-time molding of the main and secondary structures of the frame-shear wall structure is established. The entire process of installing aluminum formwork, tying steel bars and pouring concrete for the secondary structure is integrated into the construction stage of the main structure. This eliminates the waiting, rework and secondary entry procedures of traditional step-by-step construction, and realizes the integrated casting and molding of the structure. At the same time, the rapid installation and removal process of aluminum formwork is optimized to improve the overall construction efficiency. The standardized process for simultaneous construction and one-time molding of the main structure and secondary structure of the frame-shear wall structure also includes: overall construction process planning: the standardized construction process is as follows: drawing review → 3D aluminum formwork refinement → main structure reinforcement binding → secondary structure reinforcement binding → simultaneous installation and reinforcement of main structure and secondary structure aluminum formwork → concealed acceptance → simultaneous concrete pouring and vibration → curing → formwork removal → finished product protection.

[0030] Cross-construction: During the intervals between the main structure construction processes, secondary structure construction is efficiently carried out, achieving seamless connection between the two processes and eliminating idle time and waiting time.

[0031] Efficient formwork assembly and disassembly: The assembly and disassembly sequence and operation method of aluminum formwork are optimized. Modular overall assembly and segmented disassembly mode are adopted to simplify the construction process, reduce the intensity of manual labor and improve turnover efficiency.

[0032] Integrated molding control: The entire process of controlling the structural connection accuracy between the main structure and the secondary structure is carried out to prevent cold joints and structural misalignment, and to achieve overall one-time casting and molding.

[0033] Detailed design of secondary structure aluminum formwork: During the detailed design stage of the main structure aluminum formwork, the dimensions of the retaining wall, structural columns, lintels and all other secondary structures are checked, accurately positioned and the formwork is specially refined. Combining the stress characteristics of the frame-shear wall structure, the secondary structure design specifications and the on-site construction conditions, a three-dimensional modeling software is used to build an integrated formwork model of the main structure and secondary structure. This enables the refined design of the formwork size, shape, openings and splicing nodes. At the same time, for different house types or frame-shear wall structures of different specifications, the formwork size parameters, structural shape and connection construction are optimized to form a standardized and universal secondary structure aluminum formwork design system.

[0034] The detailed design of secondary structure aluminum formwork also includes the following: Pre-detailing: After the construction drawings are reviewed, the detailed design of the main structure and secondary structure aluminum formwork is carried out simultaneously. The positioning axes, cross-sectional dimensions and elevation parameters of the structural columns, lintels and waterproof retaining walls are accurately marked to prevent dimensional deviations and positioning offsets in the later stages.

[0035] 3D modeling verification: Using BIM 3D modeling software, the main beams, columns, shear walls, floor slabs and secondary structure models are integrated to perform collision verification and spatial verification, optimize formwork splicing nodes, avoid structural steel bars and reserve construction gaps.

[0036] Template standardization optimization: Standardize the template dimensions for conventional structural columns and lintels, optimize the template splicing combination method for irregular structures, improve the template corner and splicing port structure, and enhance the versatility and turnover rate of templates for different buildings and floors.

[0037] Parameter solidification: For different types of frame-shear wall structures, the corresponding secondary structure aluminum formwork design parameters, connection methods, and reinforcement points are solidified to form a standardized detailed design ledger to guide batch construction.

[0038] Secondary structure aluminum formwork connection and reinforcement: Develop a high-strength, high-stability secondary structure aluminum formwork connection and reinforcement system. By optimizing the formwork splicing structure, using special high-strength connectors, and adding a multi-point support and reinforcement system, the overall rigidity and stability of the aluminum formwork are improved. This effectively resists the lateral pressure of concrete pouring and construction live loads, eliminates problems such as formwork deformation, displacement, bulging, and grout leakage, and ensures the dimensional accuracy of the secondary structure.

[0039] The connection and reinforcement of secondary structure aluminum formwork also includes the following: standardized splicing connection: special high-strength bolts and locking pins are used as formwork connectors, the male and female tenon splicing structure of the formwork is optimized, the splicing gap is reduced, the integrity and sealing of the formwork splicing are improved, and grout leakage is eliminated from the source.

[0040] Multi-point reinforcement and support: Based on the cross-sectional dimensions of the secondary structure and the pouring height, vertical supports, horizontal back ribs and tie points are scientifically arranged, and reinforcement points are increased in densely reinforced areas and areas with high lateral pressure to ensure uniform stress on the formwork.

[0041] Stress verification and control: Before construction, stress calculations are performed on the formwork reinforcement system to ensure that it can withstand the maximum lateral pressure of concrete and construction load. During the pouring process, the formwork status is inspected in real time, and any deviation or loosening is rectified immediately.

[0042] Adaptation and modification: For irregular secondary structures, fine-tune the reinforcement support points to ensure the fit and stability of the template, while taking into account both construction convenience and structural reliability.

[0043] Secondary structural reinforcement is tied simultaneously with the main structural reinforcement: breaking away from the traditional post-installation reinforcement tying mode, secondary structural reinforcement tying is carried out simultaneously at the corresponding positions when the main structural reinforcement is tied to the preset elevation and preset position. This achieves integrated anchorage connection of the reinforcement of structural columns, lintels and inverted supports to the main beams, slabs and wall reinforcement. The tying sequence, lap length and anchorage method of reinforcement in each part are clearly defined to ensure that the reinforcement connection is firm, the stress is compliant and the overall structure is strong.

[0044] The simultaneous binding of secondary structure reinforcement and main structure reinforcement also includes the following: synchronous interleaving of processes: during the binding construction of main structure wall and beam slab reinforcement, the position of secondary structure is simultaneously marked, and the binding of longitudinal reinforcement of structural columns, stirrups, lintel reinforcement and lintel distribution reinforcement is completed simultaneously.

[0045] Standardized anchorage lap splices: Strictly follow design and specification requirements to control the lap length and anchorage depth of secondary structure reinforcement and main structure reinforcement, ensure reliable binding and anchoring of longitudinal reinforcement of structural columns and main beam and slab reinforcement, and tie and fix lintel reinforcement and wall reinforcement to prevent incomplete or short-span reinforcement splices.

[0046] Binding sequence and fixation: Follow the order of main reinforcement bars first, secondary structural reinforcement bars, and then stirrups for reinforcement, to avoid cross-interference of reinforcement bars and ensure that the reinforcement bars are arranged in a regular manner and with uniform spacing.

[0047] Reinforcing bar protection: After the reinforcing bars are tied, protective treatment is carried out to prevent the reinforcing bars from shifting, deforming and contaminating during concrete pouring and formwork installation.

[0048] Simultaneous pouring and vibration of secondary structure and main structure concrete: By optimizing the concrete mix ratio, the fluidity, workability and density of the concrete are improved to match the forming requirements of the secondary structure; a combination construction mode of small special vibration equipment and manual vibration is adopted to realize the simultaneous layered pouring and full vibration of the main structure and secondary structure concrete, and completely avoid quality defects such as honeycomb, pitting, voids and slag inclusions.

[0049] The simultaneous pouring and vibration of concrete for the secondary structure and the main structure also includes the following: customized concrete mix design: based on the narrow pouring conditions of the secondary structure, optimize the aggregate particle size, water-cement ratio and admixture dosage to improve the self-flowability and density of the concrete, avoid material blockage and segregation problems, and ensure that the narrow space is fully filled.

[0050] Layered synchronous pouring: Following the principle of main structure first, secondary structure followed by secondary structure and layered symmetry, after the main structure concrete is poured to the corresponding elevation, the secondary structure concrete is poured simultaneously. The pouring speed and layer thickness are strictly controlled to avoid a sudden increase in the side pressure of the formwork.

[0051] Refined vibration operation: The method of using a micro immersion vibrator as the main method and manual tamping as a supplement is adopted. Focus on vibrating the densely reinforced areas of structural columns and lintels, vibrating point by point, without missing any points or over-vibrating, to ensure that the concrete completely fills the formwork cavity and removes internal air bubbles.

[0052] Finishing and control: After the pouring is completed, the top and sides of the secondary structure are finished and leveled to connect with the main structure's forming surface, ensuring a smooth and seamless appearance.

[0053] Quality control of secondary structure aluminum formwork construction: Establish a full-process quality control system covering raw materials, formwork construction, steel reinforcement construction, concrete construction and finished product protection. Combine advanced non-destructive testing technology to dynamically monitor and accurately control the entire secondary structure construction process, identify potential quality hazards, and ensure that the construction quality fully meets the design and specification requirements.

[0054] The quality control of secondary structure aluminum formwork construction also includes the following: Raw material quality control: Verify the qualifications and test reports of raw materials such as aluminum formwork, connectors, steel bars, cement, sand and gravel and admixtures upon arrival on site, and prevent unqualified materials from entering the site.

[0055] Process quality control: The installation accuracy of the template, the stability of the reinforcement, the spacing of the steel bar binding, the anchorage length, the concrete mix ratio and the quality of pouring and vibration are inspected step by step. After the concealed works are inspected and approved, the next process can be carried out.

[0056] Structural concrete monitoring: Using non-destructive testing technology for concrete, we monitor the strength, internal density, and defects of secondary structural concrete, and accurately identify hidden dangers such as internal pores and cracks.

[0057] Finished product protection and control: After the concrete is poured, it is covered with a membrane for curing. The curing temperature, humidity and curing period are strictly controlled. After the formwork is removed, the finished product is protected to avoid collision, damage and contamination.

[0058] Closed-loop rectification mechanism: Establish a quality problem ledger, rectify the problems found in the inspection and verify the items to be closed, so as to realize the closed-loop quality control.

[0059] This application breaks through the technical bottleneck of traditional step-by-step construction and constructs a complete construction technology system that includes detailed design, synchronous rebar binding, precise aluminum formwork support, synchronous pouring and vibration, integrated molding, and full-process quality control. It has six core innovative features: 1. Pre-construction refined detailed design, relying on three-dimensional modeling to achieve integrated adaptation of secondary structure and main structure formwork, optimizing the formwork structure and connection method, and greatly improving the versatility and reusability of the formwork.

[0060] 2. Achieve simultaneous binding of secondary structure and main structure reinforcement, eliminating the need for post-installation of reinforcement bars, and ensuring the reliability of reinforcement connection and anchorage as well as the overall structural integrity.

[0061] 3. Based on actual working conditions, develop corresponding special aluminum formwork connection and reinforcement systems to solve the problems of formwork deformation, displacement, and grout leakage in confined spaces, and improve the stability of formwork support and construction accuracy.

[0062] 4. Develop a special concrete pouring and vibration process to adapt to secondary structural conditions, optimize the mix ratio and construction method, and eliminate concrete quality defects in confined spaces.

[0063] 5. The innovative construction process of simultaneous construction of the main structure and secondary structure, and one-time molding, completely eliminates waiting time between processes and significantly reduces the construction period.

[0064] 6. Establish a standardized quality control system covering the entire process, and combine it with non-destructive testing technology to achieve dynamic quality control throughout the construction process, ensuring standardized and refined project quality.

[0065] The foregoing basic examples and their further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in this application. In the scheme of this application, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0066] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for simultaneous one-time molding of the main body and secondary structure of a frame-shear wall structure, characterized in that, include: A standardized process for the simultaneous construction and one-time molding of the main and secondary structures of the frame-shear wall structure is established. The entire process of installing aluminum formwork, tying steel bars and pouring concrete for the secondary structure is integrated into the construction stage of the main structure. This eliminates the waiting, rework and secondary entry procedures of traditional step-by-step construction, and realizes the integrated casting and molding of the structure. At the same time, the rapid installation and removal process of aluminum formwork is optimized to improve the overall construction efficiency. The standardized process of simultaneous construction and one-time molding of the main structure and secondary structure of a frame-shear wall structure also includes: Construction process coordination: The standardized construction process is as follows: drawing review → 3D aluminum formwork refinement → main structure reinforcement binding → secondary structure reinforcement binding → main structure + secondary structure aluminum formwork synchronous installation and reinforcement → concealed acceptance → synchronous concrete pouring and vibration → curing → formwork removal → finished product protection. Cross-construction: During the intervals between the main structure construction processes, the secondary structure construction is efficiently interspersed to achieve seamless connection between the two processes and eliminate idle and waiting time. Efficient assembly and disassembly of formwork: The assembly and disassembly sequence and operation method of aluminum formwork are optimized. Modular overall assembly and segmented disassembly mode are adopted to simplify the construction process, reduce the intensity of manual labor and improve turnover efficiency; Integrated molding control: The entire process of controlling the structural connection accuracy between the main structure and the secondary structure is carried out to prevent cold joints and structural misalignment, and to achieve overall one-time casting and molding.

2. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 1, characterized in that: It also includes the detailed design of secondary structure aluminum formwork: During the detailed design stage of the main structure aluminum formwork, the dimensions of the retaining wall, structural columns, lintels and all other secondary structures are checked, accurately positioned and the formwork is specially detailed. Combining the stress characteristics of the frame-shear wall structure, the secondary structure design specifications and the on-site construction conditions, a three-dimensional modeling software is used to build an integrated formwork model of the main structure and secondary structure, so as to realize the refined design of the formwork size, shape, opening and splicing nodes. At the same time, for different house types or frame-shear wall structures of different specifications, the formwork size parameters, structural shape and connection construction are optimized to form a standardized and universal secondary structure aluminum formwork design system.

3. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 2, characterized in that: The detailed design of secondary structure aluminum formwork also includes the following: Detailed Pre-construction: After the construction drawings are reviewed, the aluminum formwork of the main structure and secondary structure is refined simultaneously. The positioning axes, cross-sectional dimensions and elevation parameters of the structural columns, lintels and waterproof curbs are accurately marked to prevent dimensional deviations and positioning offsets in the later stages. 3D modeling verification: Using BIM 3D modeling software, the main beams, columns, shear walls, floor slabs and secondary structure models are integrated to perform collision verification and spatial verification, optimize formwork splicing nodes, avoid structural steel bars and reserve construction gaps; Template standardization optimization: Standardize the dimensions of standard templates for conventional structural columns and lintels, optimize the template splicing combination method for irregular structures, improve the structure of template corners and splicing ports, and enhance the versatility and turnover rate of templates for different buildings and floors; Parameter solidification: For different types of frame-shear wall structures, the corresponding secondary structure aluminum formwork design parameters, connection methods, and reinforcement points are solidified to form a standardized detailed design ledger to guide batch construction.

4. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 1, characterized in that: It also includes the connection and reinforcement of secondary structure aluminum formwork: developing a high-strength and high-stability secondary structure aluminum formwork connection and reinforcement system. By optimizing the formwork splicing structure, using special high-strength connectors, and adding a multi-point support and reinforcement system, the overall rigidity and stability of the aluminum formwork are improved, effectively resisting the lateral pressure of concrete pouring and construction live loads, eliminating problems such as formwork deformation, displacement, bulging and grout leakage, and ensuring the dimensional accuracy of the secondary structure.

5. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 4, characterized in that: The connection and reinforcement of secondary structure aluminum formwork also includes the following: Standardized splicing connection: Special high-strength bolts and locking pins are used as template connectors to optimize the male and female tenon splicing structure of the template, reduce splicing gaps, improve the integrity and sealing of the template splicing, and eliminate grout leakage from the source; Multi-point reinforcement and support: Based on the cross-sectional dimensions of the secondary structure and the pouring height, vertical supports, horizontal back ribs and tie points are scientifically arranged, and reinforcement points are increased in densely reinforced areas and areas with high lateral pressure to ensure uniform stress on the formwork. Stress verification and control: Before construction, stress calculations are performed on the formwork reinforcement system to ensure that it can withstand the maximum lateral pressure of concrete and construction load. During the pouring process, the formwork status is inspected in real time, and any deviation or loosening is rectified immediately. Adaptation and modification: For irregular secondary structures, fine-tune the reinforcement support points to ensure the fit and stability of the template, while taking into account both construction convenience and structural reliability.

6. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 1, characterized in that: It also includes the simultaneous binding of secondary structural steel bars and main structural steel bars: breaking the traditional post-installation rebar binding mode, when the main structural steel bars are bound to the preset elevation and preset position, the secondary structural steel bars binding operation is carried out simultaneously in the corresponding position, realizing the integrated anchorage connection of the structural columns, lintels and inverted supports steel bars to the main beams, slabs and wall steel bars, clarifying the binding sequence, lap length and anchorage method of steel bars in each part, ensuring that the steel bar connection is firm, the stress compliance is compliant and the overall structure is strong.

7. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 6, characterized in that: The simultaneous binding of secondary structural reinforcement with main structural reinforcement also includes the following: Synchronous interleaving of work processes: During the construction of the main structure walls and beams and slabs reinforcement binding, the positions of the secondary structures are simultaneously located and marked, and the binding of the longitudinal reinforcement of the structural columns, stirrups, lintel reinforcement and lintel distribution reinforcement are completed simultaneously. Standardized anchorage lap splices: Strictly follow design and specification requirements to control the lap length and anchorage depth of secondary structure reinforcement and main structure reinforcement, ensure reliable binding and anchoring of longitudinal reinforcement of structural columns and main beam and slab reinforcement, and tie and fix lintel reinforcement and wall reinforcement to prevent incomplete or short-span reinforcement splices. Binding sequence and fixation: Follow the order of main reinforcement bars first, secondary structural reinforcement bars, and then stirrup reinforcement to avoid cross-interference of reinforcement bars and ensure that the reinforcement bars are arranged in a regular manner and with uniform spacing. Reinforcing bar protection: After the reinforcing bars are tied, protective treatment is carried out to prevent the reinforcing bars from shifting, deforming and contaminating during concrete pouring and formwork installation.

8. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 1, characterized in that: It also includes the simultaneous pouring and vibration of secondary and main structure concrete: by optimizing the concrete mix ratio, the fluidity, workability and density of the concrete are improved to match the forming requirements of the secondary structure; by adopting a combination construction mode of small special vibration equipment and manual vibration assistance, the concrete of the main structure and secondary structure is poured and fully vibrated in layers simultaneously, completely avoiding quality defects such as honeycomb, pitting, voids and slag inclusions.

9. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 8, characterized in that: The simultaneous pouring and vibration of concrete for secondary structures and main structures also includes the following: Customized concrete mix design: Based on the narrow pouring conditions of secondary structures, the aggregate particle size, water-cement ratio and admixture dosage are optimized to improve the self-flowability and density of concrete, avoid material blockage and segregation problems, and ensure that the narrow space is fully filled; Layered synchronous pouring: Following the principle of main structure first, secondary structure followed by secondary structure and layered symmetry, after the main structure concrete is poured to the corresponding elevation, the secondary structure concrete is poured simultaneously. The pouring speed and layer thickness are strictly controlled to avoid a sudden increase in the side pressure of the formwork. Refined vibration operation: The method of using a micro immersion vibrator as the main method and manual tamping as a supplement is adopted. Focus on vibrating the densely reinforced areas of structural columns and lintels, vibrating point by point, without missing any points or over-vibrating, to ensure that the concrete completely fills the formwork cavity and removes internal air bubbles. Finishing and control: After the pouring is completed, the top and sides of the secondary structure are finished and leveled to connect with the main structure's forming surface, ensuring a smooth and seamless appearance.

10. The method for simultaneous one-time molding of the main body and secondary structure of the frame-shear wall structure according to claim 1, characterized in that: It also includes quality control of secondary structure aluminum formwork construction: establishing a full-process quality control system covering raw materials, formwork construction, steel reinforcement construction, concrete construction and finished product protection, and combining advanced non-destructive testing technology to dynamically monitor and accurately control the entire process of secondary structure construction, identify potential quality hazards, and ensure that the construction quality fully meets the design and specification requirements; The quality control of secondary structure aluminum formwork construction also includes the following: Raw material quality control: Verify the qualifications and test reports of incoming raw materials such as aluminum formwork, connectors, steel bars, cement, sand and gravel, and admixtures to prevent unqualified materials from entering the site; Process quality control: The installation accuracy of the template, the stability of the reinforcement, the spacing of the steel bar binding, the anchorage length, the concrete mix ratio and the quality of pouring and vibration are inspected step by step. After the concealed works are inspected and approved, the next process can be carried out. Structural concrete monitoring: Using non-destructive testing technology for concrete, we monitor the strength, internal density and defects of secondary structural concrete, and accurately identify hidden dangers such as internal pores and cracks. Finished product protection and control: After the concrete is poured, cover it with a membrane for curing, strictly control the curing temperature, humidity and curing period, and protect the finished product after demolding to avoid collision, damage and contamination; Closed-loop rectification mechanism: Establish a quality problem ledger, rectify the problems found in the inspection and verify the items to be closed, so as to realize the closed-loop quality control.