Steel bar truss floor support plate inclined roof shotcrete construction operation platform
The construction operation platform, which is connected by steel triangular frames and bolts, solves the problems of adaptability and cost of traditional steel climbing frames on steep sloping roofs, and achieves efficient and safe concrete construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOYE GRP CORP
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional steel climbing frames are poorly adaptable, costly, pose significant risks to construction quality, and are inconvenient to operate in the construction of shotcrete on steep slope steel truss floor slabs and sloping roofs, thus failing to meet construction requirements.
The main structure uses a steel triangular frame, which is connected by channel steel and angle steel to form a stable triangular support. The pre-embedded channel steel is welded to the roof, and steel scaffolding is laid to form the operating surface. It is also equipped with guardrails. All components are connected by bolts, which simplifies the installation process and improves safety.
It improved construction efficiency, reduced material costs, ensured construction quality and safety, reduced spraying dead zones, improved material utilization, and adapted to changes in roof curvature.
Smart Images

Figure CN224300403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering, specifically a construction operation platform for shotcrete on a sloping roof with a steel truss floor slab. Background Technology
[0002] This project is a reinforced concrete structure project, specifically involving the roof structure of the swimming pool. The roof adopts a design combining steel trusses and reinforced steel truss floor slabs, characterized by large spans, multiple curved surfaces in the floor slab installation, varying elevations, and a steep slope (reaching 51 degrees). The concrete pouring of the floor slabs utilizes shotcrete construction technology, which places high demands on the elevation of the shotcrete work surface and the pipeline delivery distance. Furthermore, due to the 250mm thickness of the floor slabs and the fact that the concrete is mostly poured on sloping surfaces, shotcreting is challenging, and the smooth slab surface further complicates the construction quality of the shotcrete on the sloping roof.
[0003] In existing technologies, conventional steel climbing scaffolds are typically used as operating platforms for sloping roof concrete construction, providing working space for workers and equipment. However, traditional steel climbing scaffolds present significant problems for shotcrete construction on steeply sloping reinforced truss floor slabs:
[0004] Poor adaptability: Traditional steel climbing scaffolds are built using a single steel pipe, and their rigidity and fixing methods are difficult to adapt to changes in roofs with large curvatures, leading to many difficulties during the erection process.
[0005] High cost: Large-scale installation of climbing scaffolding requires a large amount of steel, which not only increases material costs but also extends the construction period.
[0006] Potential construction quality issues: The large welding area at the joints between the steel climbing frame and the roof reinforcement can easily create blind spots in the spraying process, affecting the uniformity and density of the sprayed concrete, and thus posing a potential threat to the quality of the project.
[0007] Inconvenient to operate: The operating surface of traditional steel climbing scaffolds may not be level enough, which increases the difficulty and risk for workers to work on sloping roofs.
[0008] Besides traditional steel climbing scaffolding, there are other construction techniques, such as full-span scaffolding. However, these techniques also have some problems in sloping roof construction, such as limited erection height and poor stability, which cannot meet the requirements of shotcrete construction on steep sloping roofs. Utility Model Content
[0009] The present invention aims to overcome the defects of the prior art and provide a construction operation platform for shotcrete on a sloping roof with a steel truss floor slab, thereby solving the problem of difficult shotcrete construction on a sloping roof with a steel truss floor slab.
[0010] To solve the above-mentioned technical problems, this utility model is implemented as follows:
[0011] A construction platform for shotcrete on a sloping roof with a reinforced truss floor slab, characterized in that it comprises:
[0012] At least one steel triangular frame serves as the main support structure of the construction operation platform. The steel triangular frame is composed of channel steel and angle steel connected by bolts.
[0013] An embedded channel steel is fixed to the sloping roof and connected to the steel triangular frame by bolts for fixing the steel triangular frame;
[0014] Steel planks are laid out on the steel triangular frame to form an operating surface;
[0015] The guardrail is installed on the outside of the steel triangular frame and is connected to the steel triangular frame by bolts to ensure construction safety.
[0016] The aforementioned steel truss floor deck sloping roof shotcrete construction operation platform is characterized in that the steel triangular frame comprises: No. 10 channel steel as horizontal and longitudinal support structure, and 60 angle steel as diagonal support structure, the three of which are connected by bolts to form a stable triangular support structure; the spacing of the steel triangular frame is 1.5m.
[0017] The aforementioned steel truss floor deck sloping roof shotcrete construction operation platform is characterized in that: the pre-embedded channel steel is pre-embedded on the sloping roof and is welded to the roof; the pre-embedded channel steel is provided with multiple bolt holes for bolt connection with the steel triangular frame.
[0018] The aforementioned steel truss floor decking sloping roof shotcrete construction operation platform is characterized in that: the surface of the steel scaffolding is provided with anti-slip texture, and the steel scaffolding is connected and fixed to the steel triangular frame by welding, bolts or hooks.
[0019] The aforementioned steel truss floor deck sloping roof shotcrete construction operation platform is characterized in that: the guardrail is set on the outside of the steel triangular frame, with a height of 1.5m, the guardrail is connected to the steel triangular frame by bolts, and the guardrail is composed of multiple vertical and horizontal guardrails to form a stable protective structure.
[0020] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this application provides a construction operation platform for shotcrete on a sloping roof with a steel truss floor deck. The operation platform adopts a steel triangular frame as the main structure, and uses No. 10 channel steel and 60 angle steel as the triangular support structure. This structure can flexibly adapt to the changes of large curvature roofs, solving the problem that traditional steel climbing frames cannot adapt to large curvature roofs. The various components of the operation platform (such as channel steel, angle steel, and guardrails) are connected by bolts, and the embedded channel steel is welded to the roof. However, the main structure is connected by bolts, which facilitates erection and dismantling, reduces the need for erection labor, improves work efficiency, and reduces material costs, solving the problems of high material consumption and inconvenient erection of traditional steel climbing frames. The design of the operation platform takes into account... To meet the requirements of shotcrete application, the distance between the operating surface and the spraying surface is ensured to meet the spraying requirements. Simultaneously, the small connection area between the steel triangular frame and the roof reduces spraying dead angles, improves the uniformity and density of the shotcrete, and guarantees project quality. This solves the problem of traditional steel climbing frames easily creating spraying dead angles and affecting spraying quality. The operating platform is fully covered with steel planks and equipped with a 1.5m high safety railing to ensure the safety of workers operating on the sloping roof, improving construction safety and solving the problem of traditional steel climbing frames potentially not being level, increasing the difficulty and risk for workers. Except for the channel steel at the connection with the roof, the remaining materials of the operating platform can be reused, reducing construction costs and improving material utilization, further demonstrating the superiority of this operating platform. Attached Figure Description
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:
[0022] Figure 1 This is a schematic diagram of the structure of this application.
[0023] Figure 2 This is a side cross-sectional view of this application. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.
[0025] like Figure 1 , 2 As shown: A construction operation platform for shotcrete on a sloping roof with a reinforced truss floor slab, comprising:
[0026] At least one steel triangular frame 1 serves as the main support structure of the construction operation platform. The steel triangular frame is composed of channel steel and angle steel connected by bolts.
[0027] An embedded channel steel 2 is fixed to the sloping roof and connected to the steel triangular frame by bolts for fixing the steel triangular frame;
[0028] Steel planks are laid out on the steel triangular frame to form an operating surface;
[0029] The guardrail 3 is installed on the outside of the steel triangular frame and is connected to the steel triangular frame by bolts to ensure construction safety.
[0030] The steel triangular frame includes: No. 10 channel steel 11 as horizontal and longitudinal support structure, and 60 angle steel 12 as diagonal support structure. The three are connected by bolts to form a stable triangular support structure. The spacing of the steel triangular frame is 1.5m.
[0031] This technical solution uses a steel tripod as the construction platform, with all components connected by bolts, eliminating the need for complex welding or fastener assembly and greatly simplifying the installation process. This modular design not only reduces the manpower required for erection but also significantly improves work efficiency and reduces construction costs.
[0032] The embedded channel steel is embedded in the sloping roof and is welded to the roof. The embedded channel steel is provided with multiple bolt holes for connecting to the steel triangular frame by bolts.
[0033] The steel scaffolding has anti-slip textures on its surface, and the steel scaffolding is connected and fixed to the steel triangular frame by welding, bolts or hooks.
[0034] The operating platform is fully covered with steel planks, creating a flat working surface. It is also equipped with 1.5m high guardrails, effectively preventing workers from falling while operating on the sloping roof. Furthermore, the small connection area between the steel triangular frame and the roof reduces safety hazards caused by improper welding or fixing, further enhancing construction safety.
[0035] The guardrail is installed on the outside of the steel triangular frame, with a height of 1.5m. The guardrail is connected to the steel triangular frame by bolts. The guardrail consists of multiple vertical and horizontal rails, forming a stable protective structure.
[0036] The implementation steps are as follows:
[0037] 1. On-site survey and design:
[0038] A detailed survey was conducted on the shape, dimensions, and layout of the steel truss floor slabs of the swimming pool's sloping roof.
[0039] Based on the survey results, the specific dimensions and overall layout of the steel profiles for the operating platform were designed and optimized to ensure that the operating platform can adapt to the large curvature changes of the sloping roof.
[0040] 2. Material preparation and processing:
[0041] Qualified No. 10 channel steel and 60 angle steel are selected as the main materials for the steel triangular frame.
[0042] According to the design requirements, the channel steel and angle steel are processed by cutting, drilling and other processes to facilitate subsequent assembly.
[0043] 3. Installation of embedded channel steel:
[0044] No. 10 channel steel is pre-embedded in the sloping roof at the designed location and then firmly connected to the roof by welding.
[0045] Ensure the embedded channel steel is accurately positioned and firmly fixed to provide a stable foundation for the subsequent installation of the steel triangular frame.
[0046] 4. Assembly and installation of steel triangular frames:
[0047] The processed channel steel and angle steel are connected by bolts to form a steel triangular frame, ensuring that the connection of each component is tight and stable.
[0048] The assembled steel triangular frame is connected to the pre-embedded channel steel with bolts and installed on the sloping roof.
[0049] According to the design requirements, the spacing of the steel triangular frame is adjusted to 1.5m, and a guardrail with a height of 1.5m is installed.
[0050] 5. Steel plank installation and platform completion:
[0051] Steel planks are laid on the steel triangular frame to form a flat operating surface.
[0052] Check the overall stability and safety of the operating platform to ensure it meets construction requirements.
[0053] 6. Construction Operation and Monitoring:
[0054] Workers stand on the operating platform to carry out shotcrete construction, ensuring that the spraying distance and angle meet the requirements.
[0055] During construction, the operating platform is regularly inspected and maintained to ensure it is always in good condition.
[0056] 7. Platform dismantling and material turnover:
[0057] After the lower layer of concrete is poured, the lower operating platform is dismantled in accordance with safety regulations to facilitate material turnover.
[0058] The dismantled materials should be cleaned, inspected, and maintained for future reuse.
[0059] Significant progress has been made in the application of this utility model's construction operation platform for shotcrete construction on sloping roofs. The ease of installation improves construction efficiency, effectively ensures safety, significantly increases material turnover, and effectively guarantees project quality.
[0060] Except for the pre-embedded channel steel at the connection with the roof, all other materials used in the operating platform, such as channel steel, angle steel, and steel scaffolding, can be reused. This design not only reduces material consumption but also improves material utilization, aligning with the concept of green construction.
[0061] The scientifically designed connection between the steel triangular frame and the roof ensures the stability and levelness of the operating platform, thus meeting the requirements for flatness and spacing of the operating surface during shotcrete construction. This design effectively reduces blind spots in the spraying process, improves the uniformity and density of the shotcrete, and ultimately guarantees the quality of the project.
[0062] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A construction operation platform for shotcrete on a sloping roof with a reinforced truss floor slab, characterized in that, It includes: At least one steel triangular frame serves as the main support structure of the construction operation platform. The steel triangular frame is composed of channel steel and angle steel connected by bolts. An embedded channel steel is fixed to the sloping roof and connected to the steel triangular frame by bolts for fixing the steel triangular frame; Steel planks are laid out on the steel triangular frame to form an operating surface; The guardrail is installed on the outside of the steel triangular frame and is connected to the steel triangular frame by bolts to ensure construction safety.
2. The construction operation platform for shotcrete on a sloping roof with a reinforced truss floor slab according to claim 1, characterized in that, The steel triangular frame includes: No. 10 channel steel as horizontal and longitudinal support structure, and 60 angle steel as diagonal support structure. The three are connected by bolts to form a stable triangular support structure; the spacing of the steel triangular frame is 1.5m.
3. The construction operation platform for shotcrete on a sloping roof with a reinforced truss floor slab according to claim 1, characterized in that: The embedded channel steel is embedded in the sloping roof and is welded to the roof. The embedded channel steel is provided with multiple bolt holes for connecting to the steel triangular frame by bolts.
4. The construction operation platform for shotcrete on a sloping roof with a reinforced truss floor slab according to claim 1, characterized in that: The steel scaffolding has anti-slip textures on its surface, and the steel scaffolding is connected and fixed to the steel triangular frame by welding, bolts or hooks.
5. The construction operation platform for shotcrete on a sloping roof with a reinforced truss floor slab according to claim 1, characterized in that: The guardrail is installed on the outside of the steel triangular frame, with a height of 1.5m. The guardrail is connected to the steel triangular frame by bolts. The guardrail consists of multiple vertical and horizontal rails, forming a stable protective structure.