Prefabricated variable-section cantilever beam balcony structure

Abstract

The utility model relates to a prefabricated variable-section cantilever beam balcony structure, comprising a prefabricated balcony, wherein the prefabricated balcony comprises a balcony plate, a cantilever beam and an edge beam, wherein the cantilever beam is a trapezoidal beam, wherein the root cross-sectional length of the cantilever beam is 450 mm, and the cross-sectional length of the end of the cantilever beam is 300 mm; the cross-sectional length of the edge beam is 300 mm; the surface of the balcony plate is prefabricated with floor tiles; and the end of the cantilever beam is provided with a prefabricated keyway for connecting with a main body. By designing the cantilever beam as a trapezoidal beam, the cross-sectional size of the end of the cantilever beam is reduced, and the deadweight of the prefabricated balcony is significantly reduced. Compared with a traditional cantilever beam balcony with a uniform cross-sectional area, the weight is reduced by about 12.5%. This not only reduces the material cost, but also reduces the difficulty of transportation and hoisting during construction.

Description

Technical Field

[0001] The utility model relates to a prefabricated variable-section cantilever beam balcony structure. Background Art

[0002] In recent years, as the country vigorously promotes prefabricated buildings, prefabricated concrete balconies have been widely used in prefabricated concrete buildings. Prefabricated concrete balconies are prefabricated in the factory, avoiding the tedious process of on-site production, significantly saving time and labor. Due to the many advantages of prefabricated buildings, prefabricated balcony technology has quickly become popular and has become an important part of modern architecture.

[0003] However, most prefabricated balconies on the market currently use a uniform cross-section beam design, that is, the cross-sectional dimensions of the cantilever beam are consistent from the root to the end. Although this type of design is easy to produce, it has exposed some defects in actual applications. The cross-sectional material at the end of the cantilever beam is not fully utilized, resulting in material waste. In order to ensure the aesthetic effect of the facade, the cross-sectional dimensions of the edge beam are usually consistent with the end of the cantilever beam, which further increases the amount of material used and leads to poor economic efficiency. In addition, the traditional prefabricated balcony has a large deadweight, which increases the load of the building structure and the amount of steel bars used, which is not conducive to the realization of energy conservation and emission reduction goals.

[0004] Prior art

[0005] Design of uniform cross-section beams:

[0006] Traditional prefabricated balconies are mostly designed with equal cross-section cantilever beams, that is, the cross-section size is consistent from the root to the end. Although this design is simple, it does not make full use of the material.

[0007] The cross-section of the ends of the uniform-section beam is larger, resulting in serious material waste and increasing the deadweight of the balcony.

[0008] Edge beam 3 design:

[0009] In order to ensure the facade effect, the cross-sectional size of the edge beam 3 is usually consistent with the end of the cantilever beam 2. This further increases the material usage and cost, and is less economical.

[0010] The traditional edge beam 3 is relatively high, which affects the aesthetics and practical use space of the balcony.

[0011] Material waste and deadweight:

[0012] The uniform cross-section beam design results in that the cross-section material at the end of the cantilever beam 2 is not fully utilized, which increases the amount of concrete and steel bars used and wastes resources.

[0013] The traditional prefabricated balcony is heavy, which increases the overall load of the building and is not conducive to energy conservation and emission reduction.

[0014] Construction complexity:

[0015] The traditional balcony slab 1 needs to be laid with floor tiles 4 on site, which has complicated procedures, increases the construction difficulty and time, and reduces the construction efficiency.

[0016] On-site construction requires more manpower and time, which increases costs.

[0017] Improvements of the utility model

[0018] Variable section beam design:

[0019] The utility model adjusts the rectangular beam of the prefabricated balcony to a trapezoidal beam design, the root section length of the cantilever beam 2 is 450mm, and the end section length is reduced to 300mm. This trapezoidal section design optimizes material utilization and reduces underutilized materials.

[0020] The trapezoidal cross-section design effectively reduces the deadweight of the balcony and reduces the overall load on the building.

[0021] Edge beam 3 optimization:

[0022] The cross-sectional length of the edge beam 3 is adjusted from the traditional 450mm to 300mm. This optimized design reduces material usage and costs and improves economic benefits.

[0023] The width of the edge beam 3 is 150 mm, which reduces the height and improves the aesthetics and actual use space of the balcony.

[0024] Material utilization and energy saving:

[0025] Through the trapezoidal cross-section design, the material utilization rate of the cantilever beam 2 and the edge beam 3 is significantly improved, the amount of concrete and steel bars is reduced, and about 12.5% ​​of materials are saved.

[0026] The reduced balcony weight and reduced material usage will help achieve energy conservation and emission reduction goals and are in line with the concept of green buildings.

[0027] Improved construction efficiency:

[0028] The balcony slab 1 has floor tiles 4 prefabricated on its surface, and adopts the floor tiles 4 reverse-beating process, eliminating the traditional cement mortar bonding layer. This reduces the construction workload of laying floor tiles 4 on site, improves construction efficiency, and shortens the construction period.

[0029] By pre-arranging and fixing the steel bars in the factory, the workload and complexity of on-site construction are reduced, further improving the construction quality and efficiency.

[0030] Summarize

[0031] Through the above comparison, it can be seen that, based on the prior art, the utility model significantly improves the material utilization rate and economic benefits, reduces the deadweight of the balcony, reduces the building load, and achieves the goal of energy conservation and emission reduction through the design of variable cross-section beams and optimized edge beams 3. At the same time, through the prefabrication of built-in steel bars and the application of the reverse-beating process of floor tiles 4, the construction process is simplified, and the construction efficiency and quality are improved. On the whole, the utility model has achieved significant improvements and upgrades in optimizing material utilization, improving economic benefits, reducing building loads, and improving construction efficiency. Utility Model Content

[0032] The utility model aims to provide a prefabricated variable-section cantilever beam balcony structure which optimizes the cross-sectional dimensions of the cantilever beam and the edge beam, maximizes the use of materials, and reduces the balcony's deadweight and the amount of steel bars used, while ensuring the balcony's force requirements.

[0033] The purpose of the utility model is achieved in this way:

[0034] A prefabricated variable-section cantilever beam balcony structure, comprising a prefabricated balcony, the prefabricated balcony comprising a balcony plate, a cantilever beam and an edge beam, the cantilever beam is a trapezoidal beam, the root cross-sectional length of the cantilever beam is 450 mm, and the end cross-sectional length of the cantilever beam is 300 mm;

[0035] The cross-sectional length of the edge beam is 300 mm;

[0036] The balcony slab surface is prefabricated with floor tiles;

[0037] The end of the cantilever beam is provided with a prefabricated keyway for connecting with the main body.

[0038] By designing the cantilever beam as a trapezoidal beam, the cross-sectional size of the cantilever beam end is reduced, significantly reducing the deadweight of the prefabricated balcony. Compared with the traditional cantilever beam balcony with equal cross-section, the weight is reduced by about 12.5%. This not only reduces the material cost, but also reduces the difficulty of transportation and hoisting during construction.

[0039] Due to the optimized design of the cantilever beam cross-section size, the material utilization rate of the cantilever beam and the edge beam has been significantly improved, reducing the underutilized material. This optimized design has reduced the amount of concrete by about 12.5%, achieving efficient use of resources.

[0040] This design significantly reduces the production cost of prefabricated balconies by reducing the amount of concrete and steel bars used. Compared with traditional cantilever beam balconies with uniform cross-sections, the cost is saved by about 8.7%. This economic benefit makes the design more competitive in the market.

[0041] The prefabricated variable-section cantilever beam design not only reduces the deadweight of the balcony, but also reduces the use of steel bars and concrete, thereby reducing the overall load and material consumption of the building. This energy-saving and emission-reduction effect is in line with the current development direction of green buildings and helps achieve the goal of sustainable development.

[0042] The utility model adopts the floor tile reverse-beating process, and prefabricates the floor tiles on the prefabricated balcony in the factory, eliminating the traditional cement mortar bonding layer. This not only reduces the construction workload of laying floor tiles on site, improves construction efficiency, but also shortens the construction period and reduces the complexity of on-site construction.

[0043] The surface of the prefabricated balcony slab is prefabricated with floor tiles, which make use of the waterproof performance of the floor tiles to achieve the beauty and waterproof effect of the balcony. At the same time, the step of laying floor tiles on site is eliminated, making the construction of the balcony easier and improving the construction quality and effect.

[0044] By optimizing the cross-sectional dimensions of the cantilever beam and edge beam from 450mm to 300mm, the structural force requirements of the balcony are guaranteed, material waste is avoided, and cross-sectional utilization is maximized.

[0045] The purpose of the utility model can also be solved by the following technical measures:

[0046] Furthermore, the height difference between the end of the cantilever beam and the root of the cantilever beam is 150 mm.

[0047] The height difference between the end and the root of the cantilever beam is 150mm. This design ensures the bearing capacity of the beam at the root by gradually reducing the cross-sectional size, while optimizing the material utilization at the end of the beam. This trapezoidal cross-sectional design maximizes the utilization of materials while ensuring structural strength and safety.

[0048] Through the height difference design, the cross section of the cantilever beam is gradually reduced from the root to the end, which significantly reduces the deadweight of the balcony. This design reduces the overall load of the building, helps to improve the safety and stability of the building structure, and reduces the requirements for the main structure.

[0049] The trapezoidal cross-section design of the cantilever beam reduces underutilized materials and significantly saves the amount of concrete and steel bars compared to the uniform cross-section design. This efficient use of materials not only reduces production costs, but also improves economic benefits, and has obvious market competitive advantages.

[0050] By optimizing the cross-sectional dimensions and reducing the use of materials, the energy consumption and carbon emissions during the production and transportation of building materials are reduced. This design is in line with the development direction of green buildings, helps achieve the goal of energy conservation and emission reduction, and promotes sustainable development.

[0051] The height difference design of the cantilever beam makes the prefabricated components lighter and easier to produce and transport. At the same time, the optimized cross-section design makes on-site construction easier, reduces the difficulty of installation and fixing, and improves construction efficiency and quality.

[0052] The cantilever beam design with a trapezoidal cross section makes the balcony look more beautiful and the lines smooth, which improves the overall quality of the building. Through the reasonable height difference design, it not only ensures the functionality, but also enhances the visual effect of the balcony, which meets the aesthetic needs of modern architecture.

[0053] Furthermore, the thickness of the balcony slab is 80 mm.

[0054] Furthermore, the width of the edge beam is 150 mm.

[0055] By designing the thickness of the balcony slab to 80mm, the self-weight of the balcony is significantly reduced compared with the traditional design. The width of the edge beam is 150mm, which further reduces the amount of material used. This optimized design makes the prefabricated balcony lightweight while ensuring strength, reducing the weight of the overall structure and reducing the load on the building.

[0056] The design of balcony slab thickness of 80mm reduces the amount of concrete used, and the width of edge beam of 150mm further optimizes the material utilization. Compared with the traditional thickness and width design, this optimized design saves materials and reduces production and construction costs, which has significant economic benefits.

[0057] The thinner balcony slabs and narrower edge beams make the prefabricated components lighter and easier to produce, transport and install. The reduced weight and optimized size design reduce the difficulty of on-site construction, improve construction efficiency, speed up construction progress, and reduce manpower and time costs.

[0058] By rationally designing the thickness of the balcony slab and the width of the edge beam, the overall structure of the balcony is more refined and beautiful. The thinner balcony slab and the narrower edge beam are more visually coordinated, which meets the aesthetic needs of modern architecture and improves the overall quality and grade of the building.

[0059] The design of the edge beam width of 150mm reduces unnecessary space occupation and increases the actual use area of ​​the balcony. The optimized edge beam size not only improves the practicality of the balcony, but also makes the balcony space more spacious and comfortable, increasing the satisfaction of users.

[0060] Although the thickness of the balcony slab is reduced to 80mm, the optimized design can still meet the structural force requirements and ensure the stability and safety of the balcony. The width of the edge beam is 150mm, which optimizes material utilization and space configuration while ensuring the necessary structural support and aesthetic effect.

[0061] Reducing the amount of materials used and optimizing the design are in line with the concept of green buildings. By reducing the thickness and width of balcony slabs and edge beams, the amount of concrete and steel bars used is reduced, thereby reducing energy consumption and carbon emissions during the production and transportation of building materials, which helps achieve the goal of energy conservation and emission reduction.

[0062] Furthermore, the balcony slab is provided with plate reinforcement.

[0063] Furthermore, the cantilever beam is built with surface bars and oblique steel bars, and the surface bars and oblique steel bars are fixed and tied by stirrups.

[0064] The balcony slab has built-in plate reinforcement, and the cantilever beam has built-in surface reinforcement and diagonal reinforcement, which are fixed and tied by stirrups. This design greatly improves the overall strength and rigidity of the balcony slab and cantilever beam, ensures the stability and safety of the balcony when bearing loads, and extends the service life of the balcony.

[0065] The design of built-in steel bars can effectively enhance the seismic performance of balcony slabs and cantilever beams. The reasonable configuration of surface bars and diagonal steel bars and their fixing and binding through stirrups form a stable steel skeleton, which makes the balcony more resistant to lateral loads such as earthquakes and reduces the risk of structural damage.

[0066] The built-in surface reinforcement and diagonal reinforcement of the cantilever beam, combined with the fixed binding design of the stirrups, ensure the uniform distribution of the force of the reinforcement in the concrete and optimize the force performance of the balcony structure. The reasonable layout of the plate reinforcement further enhances the bending and shear resistance of the balcony plate and improves the overall force performance of the balcony.

[0067] By embedding the steel bars in the factory and fixing and tying them during the prefabrication process, the layout and tying quality of the steel bars can be strictly controlled, avoiding problems such as steel bar position deviation and loose tying that may occur during on-site construction. This prefabrication method ensures the construction quality of the balcony slabs and cantilever beams, and improves the safety and reliability of the entire building.

[0068] Arrangement and fixing of steel bars in advance in the factory reduces the workload and complexity of on-site construction and reduces the difficulty of construction. At the same time, prefabricated components with built-in steel bars can be installed directly, reducing the time and labor cost of on-site steel bar tying and improving construction efficiency.

[0069] The steel bars are built into the concrete and are well protected, which reduces the corrosion problems that may occur when the steel bars are exposed to the external environment. The surface bars and diagonal steel bars are fixed and tied with stirrups to form a strong steel skeleton, which further improves the durability and service life of the balcony slabs and cantilever beams.

[0070] The design of built-in steel bars complies with current building design specifications and standards, ensuring the structural safety and reliability of balcony slabs and cantilever beams. Reasonable steel bar arrangement and fixing and binding not only meet the structural design requirements, but also improve the overall performance and quality of the building.

[0071] The beneficial effects of the utility model are as follows:

[0072] The utility model proposes a prefabricated variable-section cantilever beam balcony structure, which has significant advantages in reducing the dead weight of the balcony, saving materials, reducing costs, saving energy and reducing emissions, and improving construction efficiency, and greatly improves the comprehensive performance and market competitiveness of the prefabricated balcony.

[0073] The utility model is designed with a height difference of 150 mm between the end and the root of the cantilever beam, which achieves a dual improvement in structural strength and economic benefits by optimizing the cross-sectional size and material utilization, conforms to the development direction of energy conservation and emission reduction and green buildings, and has significant beneficial effects.

[0074] The utility model is designed with a balcony slab thickness of 80mm and an edge beam width of 150mm. By optimizing size and material utilization, the overall structural weight is reduced, the production and construction costs are reduced, the construction efficiency and space utilization are improved, the aesthetics and safety are enhanced, it conforms to the development direction of green buildings, and has significant beneficial effects.

[0075] The utility model has built-in plate steel bars in the balcony slab, built-in surface bars and oblique steel bars in the cantilever beam, and is fixed and tied with stirrups. The overall performance of the prefabricated balcony is significantly improved by enhancing structural strength, improving seismic resistance, optimizing stress performance, improving construction quality, reducing construction difficulty and cost, and improving durability and corrosion resistance, and has significant beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 Schematic diagram of the prefabricated variable-section cantilever beam balcony structure.

[0077] Figure 2 Schematic diagram of cantilever beam reinforcement for prefabricated variable-section cantilever beam balcony structure.

[0078] Figure 3 This is a cross-sectional view of the prefabricated variable-section cantilever beam balcony structure. DETAILED DESCRIPTION

[0079] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0080] Example, combined with Figures 1 to 3As shown, a prefabricated variable-section cantilever beam 2 balcony structure comprises a prefabricated balcony, wherein the prefabricated balcony comprises a balcony plate 1, a cantilever beam 2 and an edge beam 3, wherein the cantilever beam 2 is a trapezoidal beam, wherein the root cross-sectional length of the cantilever beam 2 is 450 mm, and the end cross-sectional length of the cantilever beam 2 is 300 mm;

[0081] The cross-sectional length of the edge beam 3 is 300 mm;

[0082] The surface of the balcony slab 1 is prefabricated with floor tiles 4;

[0083] The end of the cantilever beam 2 is provided with a prefabricated keyway 5 for connecting with the main body.

[0084] Furthermore, the height difference between the end of the cantilever beam 2 and the root of the cantilever beam 2 is 150 mm.

[0085] Furthermore, the thickness of the balcony slab 1 is 80 mm.

[0086] Furthermore, the width of the edge beam 3 is 150 mm.

[0087] Furthermore, the balcony slab 1 has plate reinforcement 6 built in.

[0088] Furthermore, the cantilever beam 2 has built-in surface bars 7 and oblique steel bars 8 , and the surface bars 7 and oblique steel bars 8 are fixed and tied by stirrups 9 .

Claims

1. A prefabricated variable-section cantilever beam balcony structure, comprising a prefabricated balcony, wherein the prefabricated balcony comprises a balcony slab (1), a cantilever beam (2) and an edge beam (3), characterized in that: The cantilever beam (2) is a trapezoidal beam, the cross-sectional length of the root of the cantilever beam (2) is 450 mm, and the cross-sectional length of the end of the cantilever beam (2) is 300 mm; The cross-sectional length of the edge beam (3) is 300 mm; The surface of the balcony slab (1) is prefabricated with floor tiles (4); The end of the cantilever beam (2) is provided with a prefabricated keyway (5) for connection with the main body.

2. The prefabricated variable-section cantilever beam balcony structure according to claim 1, characterized in that: The height difference between the end of the cantilever beam (2) and the root of the cantilever beam (2) is 150 mm.

3. The prefabricated variable-section cantilever beam balcony structure according to claim 1 is characterized in that: The thickness of the balcony slab (1) is 80 mm.

4. The prefabricated variable-section cantilever beam balcony structure according to claim 1 is characterized in that: The width of the edge beam (3) is 150 mm.

5. The prefabricated variable-section cantilever beam balcony structure according to claim 1 is characterized in that: The balcony slab (1) has plate reinforcement (6) built into it.

6. The prefabricated variable-section cantilever beam balcony structure according to claim 1 is characterized in that: The cantilever beam (2) has built-in surface bars (7) and oblique steel bars (8), and the surface bars (7) and oblique steel bars (8) are fixed and tied by stirrups (9).

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