Formwork erecting method for nonstandard layer of residential engineering roof
By using BIM software to create a 3D model during the construction of non-standard roof floors and combining it with the support columns of aluminum alloy formwork and wooden formwork, the problems of poor adaptability, low efficiency, high cost and unstable quality during construction were solved. This resulted in a high-efficiency and low-cost formwork system that ensured construction quality and architectural aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MCC XIONGAN CONSTR CO LTD
- Filing Date
- 2025-12-17
- Publication Date
- 2026-04-21
AI Technical Summary
Existing technologies suffer from poor adaptability, low construction efficiency, poor quality stability, high cost, and insufficient flexibility in the construction of non-standard roof layers in residential projects.
BIM software is used to create a 3D visualization model of the non-standard roof layer, determine the setting position of the aluminum alloy formwork, and combine the aluminum alloy formwork and wooden formwork with support columns to realize the combination process of aluminum alloy formwork and wooden formwork. Independent support is achieved through support columns, forming a combination of aluminum alloy formwork and wooden formwork.
It improved construction efficiency and quality stability, reduced formwork costs, and realized a flexible and efficient formwork system for non-standard roof layers, ensuring the structural stability and aesthetics of the building.
Smart Images

Figure CN121902249A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building engineering technology, and in particular to a method for supporting formwork for non-standard roof layers in residential engineering projects. Background Technology
[0002] Formwork construction is a crucial step in concrete structure construction, determining the shape and dimensions of the concrete. High-quality formwork engineering ensures the geometric accuracy and surface smoothness of the concrete structure, thereby improving the overall quality of the building project. Through precise formwork design and construction, the accuracy, precision, and consistency of the building structure can be guaranteed, meeting the engineering design requirements.
[0003] In the construction of standard floors for residential roofs, aluminum alloy formwork combined with composite floor slabs is commonly used. Composite floor slabs are assembled monolithic slabs composed of precast slabs and cast-in-place reinforced concrete layers. Composite floor slabs offer good overall integrity, with smooth upper and lower surfaces, facilitating finishing. They are suitable for high-rise buildings and large-span buildings requiring high overall rigidity. However, this construction method has some significant drawbacks for non-standard floor construction: Poor adaptability: Non-standard roof floors differ from standard floors in terms of structure and dimensions, and custom-made composite floor slabs often struggle to accommodate these differences. For example, non-standard roof floors may have unique structural shapes or dimensional variations, and composite floor slabs may not be able to precisely match these variations, leading to increased construction difficulty and even requiring custom-made formwork, thus increasing costs and time.
[0004] Low construction efficiency: The assembly, adjustment, and disassembly of composite floor slabs can be quite cumbersome, especially in the construction of non-standard roof floors. Due to the complex structure, the assembly and adjustment of formwork may require more time and manpower. This not only reduces construction efficiency but may also affect the project schedule.
[0005] Poor quality stability: Due to the unique characteristics of non-standard roof floors, composite floor slabs may be difficult to maintain in terms of quality stability during construction. For example, gaps may appear in the composite floor slabs, leading to grout leakage during concrete pouring; the support and fixation of the formwork may not be secure enough, resulting in deformation during concrete pouring. These problems can all affect the final structural quality and safety.
[0006] Higher costs: For non-standard roof floor construction, if the "aluminum alloy formwork + composite floor slab" method is used, it may require custom-made composite floor slabs or extensive modifications, which will increase the cost of the composite floor slabs. At the same time, due to low construction efficiency and poor quality stability, rework and repair costs may increase.
[0007] Insufficient flexibility: Composite floor slabs often lack flexibility and are difficult to adapt to various changes that may occur during the construction of non-standard roof floors. For example, if the structure or dimensions of a non-standard floor change, the composite floor slab may need to be redesigned or customized, which will increase construction difficulty and cost.
[0008] Therefore, the construction method of "aluminum alloy formwork + composite floor slab" has disadvantages such as poor adaptability, low construction efficiency, poor quality stability, high cost and insufficient flexibility in the construction of non-standard floors of residential roofs. Summary of the Invention
[0009] The technical problem to be solved by the present invention is to provide a formwork support method for non-standard roof layers in residential engineering. This method overcomes the defects of traditional standard roof layer construction operations, adapts to the formwork support construction operations of non-standard roof layers, improves construction efficiency and quality stability, reduces formwork support costs, and realizes a flexible and efficient formwork system for non-standard roof layers.
[0010] To solve the above-mentioned technical problems, the formwork support method for non-standard roof layers in residential engineering of the present invention includes the following steps: Step 1: Create a 3D visualization model of the non-standard roof layer using BIM software, and determine the location of the aluminum alloy formwork based on the model; Step 2: After the wall and column reinforcement is tied, assemble the aluminum alloy formwork onto the wall and column according to the set position, and use support columns to fix the aluminum alloy formwork. Step 3: After the aluminum alloy formwork is assembled, lay the wooden formwork for the roof panels according to the model. The wooden formwork is connected and fixed to the aluminum alloy formwork, and the wooden formwork is fixed with support columns to complete the erection of the non-standard floor formwork of the roof.
[0011] Furthermore, the aluminum alloy formwork is assembled to the wall column using reinforcing tie plates, and a base plate is placed at the bottom of the aluminum alloy formwork, with support columns erected below the base plate.
[0012] Furthermore, the wooden formwork is 15mm thick and is erected between the aluminum alloy formwork of adjacent wall columns.
[0013] Furthermore, the support column includes a hollow column, a top sealing plate, a bottom sealing plate, a screw, and a nut. The top sealing plate and the bottom sealing plate are respectively disposed on the top and bottom surfaces of the hollow column. The screw is vertically and centrally disposed on the surface of the top sealing plate. The nut is screwed onto the screw. The top surface of the nut is closed, and four auxiliary reinforcing steel handles are provided at equal intervals on the outer ring.
[0014] The present invention's method for formwork support of non-standard roof floors in residential engineering employs the aforementioned technical solution. Specifically, this method uses BIM software to create a three-dimensional visualization model of the non-standard roof floor, determining the placement of the aluminum alloy formwork based on the model. After the wall and column reinforcement is tied, the aluminum alloy formwork is assembled onto the wall and columns according to the designated positions, and supported by columns. Following the assembly of the aluminum alloy formwork, wooden formwork for the roof panel is laid according to the model, connected and fixed to the aluminum alloy formwork, and further secured by columns, thus completing the erection of the non-standard roof floor formwork. This method overcomes the shortcomings of traditional standard roof floor construction operations, adapts to the formwork support construction of non-standard roof floors, improves construction efficiency and quality stability, reduces formwork costs, and achieves a flexible and efficient formwork system for non-standard roof floors. Attached Figure Description
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the formwork support method for non-standard roof layers in residential engineering according to the present invention; Figure 2 This is a schematic diagram of the aluminum alloy template assembly in this method; Figure 3 This is a schematic diagram of the support column structure in this method. Detailed Implementation
[0016] Implementation, for example Figure 1 and Figure 2 As shown, the formwork support method for non-standard roof layers in residential engineering projects according to the present invention includes the following steps: Step 1: Create a 3D visualization model of the non-standard roof layer using BIM software, and determine the location of aluminum alloy template 1 based on the model; Step 2: After the steel reinforcement of wall column 2 is tied, assemble aluminum alloy formwork 1 onto wall column 2 according to the set position, and use support column 3 to fix aluminum alloy formwork 1. Step 3: After the aluminum alloy formwork 1 is assembled, lay the wooden formwork 4 of the roof panel according to the model. The wooden formwork 4 is connected and fixed to the aluminum alloy formwork 1, and the wooden formwork 4 is fixed with the support column 3 to complete the erection of the non-standard layer formwork of the roof.
[0017] Preferably, the aluminum alloy template 1 is assembled to the wall column 2 using reinforcing tie plates 11, and a base plate 12 is set at the bottom of the aluminum alloy template 1, with the support column 3 erected below the base plate 12.
[0018] Preferably, the wooden template 3 is 15mm thick and is erected between the aluminum alloy templates 1 of adjacent wall columns.
[0019] Preferred, such as Figure 3As shown, the support column 3 includes a hollow column 31, a top sealing plate 32, a bottom sealing plate 33, a screw 34, and a nut 35. The top sealing plate 32 and the bottom sealing plate 33 are respectively located on the top and bottom surfaces of the hollow column 31. The screw 34 is vertically and centrally located on the surface of the top sealing plate 32. The nut 35 is screwed onto the screw 34. The top surface of the nut 35 is closed, and four auxiliary reinforcing steel handles 36 are evenly spaced on its outer ring. The support column allows for height adjustment via the nut at the top of the hollow column. This support column enables independent support for both aluminum alloy and wooden formwork, improving structural stability and operational efficiency.
[0020] After all the wooden formwork is fixed and assembled, the steel bars can be tied on the roof slab. After acceptance, concrete can be poured. 24 hours after the concrete is poured, the formwork can be removed to complete the construction of the non-standard roof layer.
[0021] Compared with the "aluminum alloy formwork + composite floor slab" construction method for standard roof floors, this method has the following significant advantages: 1. Strong adaptability: Unlike composite floor slabs, which are difficult to adapt to special roof structures or size changes in non-standard roof layers, the combination of aluminum alloy formwork and wood formwork combines the strong adaptability of wood formwork, making it more adaptable than a single aluminum alloy formwork and composite floor slab.
[0022] 2. Lower Cost: Compared to composite floor slabs, the reusability of wooden formwork reduces material and labor costs. Aluminum alloy formwork offers faster construction speeds, significantly saving on labor and equipment costs. Therefore, the overall cost of combining aluminum alloy and wooden formwork is low.
[0023] 3. Improved construction efficiency: Aluminum alloy formwork can be installed and dismantled quickly, allowing for rapid installation of wooden formwork, significantly shortening the construction cycle. It also enables multiple processes to be carried out simultaneously, further improving construction efficiency and saving time. Wooden formwork, on the other hand, offers fast demolding and good formability, which helps to further shorten the construction period and improve efficiency.
[0024] 4. Improved Construction Quality: Compared to composite floor slabs, wooden formwork is lighter and has a higher degree of surface flatness, enabling seamless wall cladding and ensuring the overall aesthetics and quality of the building. Meanwhile, aluminum alloy formwork possesses high strength, high rigidity, and high heat and weather resistance, making it less prone to deformation and cracking, thus ensuring the structural stability and safety of the building.
Claims
1. A method for formwork support of non-standard floors on the roof of a residential building, characterized in that... This method includes the following steps: Step 1: Create a 3D visualization model of the non-standard roof layer using BIM software, and determine the location of the aluminum alloy formwork based on the model; Step 2: After the wall and column reinforcement is tied, assemble the aluminum alloy formwork onto the wall and column according to the set position, and use support columns to fix the aluminum alloy formwork. Step 3: After the aluminum alloy formwork is assembled, lay the wooden formwork for the roof panels according to the model. The wooden formwork is connected and fixed to the aluminum alloy formwork, and the wooden formwork is fixed with support columns to complete the erection of the non-standard floor formwork of the roof.
2. The formwork support method for non-standard floors of residential building roofs according to claim 1, characterized in that: The aluminum alloy formwork is assembled with reinforcing tie plates to the wall columns, and a base plate is set at the bottom of the aluminum alloy formwork, with support columns erected below the base plate.
3. The formwork support method for non-standard roof layers in residential engineering projects according to claim 1 or 2, characterized in that: The wooden formwork is 15mm thick and is erected between the aluminum alloy formwork of adjacent wall columns.
4. The formwork support method for non-standard roof layers in residential engineering according to claim 3, characterized in that: The support column includes a hollow column, a top sealing plate, a bottom sealing plate, a screw, and a nut. The top sealing plate and the bottom sealing plate are respectively located on the top and bottom surfaces of the hollow column. The screw is vertically centered on the surface of the top sealing plate. The nut is screwed onto the screw. The top surface of the nut is closed, and four auxiliary reinforcing steel handles are provided at equal intervals on the outer ring.