Structure for solving base subsidence of floor-type scaffold and construction method thereof

Abstract

The application discloses a structure for solving the subsidence of a floor type scaffold foundation and a construction method thereof, and belongs to the technical field of scaffolds. The structure comprises a corbel and a basement roof. The surface of the corbel is provided with a pre-embedded reinforcing bar, the upper surface of the corbel is poured with a foundation, and the top of the foundation is pre-embedded with a U-shaped clamp. The surface of the basement roof is also pre-embedded with a U-shaped clamp, and the basement roof and the upper part of the foundation are jointly laid with an I-shaped steel, and the two ends of the I-shaped steel are respectively placed in the pre-embedded U-shaped clamps. The upper part of the corbel is made of a reinforced concrete foundation, the two ends of the I-shaped steel are respectively placed on the basement roof and the made foundation, the I-shaped steel is fixedly arranged through the U-shaped clamps, and the vertical pole is stressed on the I-shaped steel, so that the scaffold is effectively prevented from subsiding. The floor type scaffold can be erected without waiting for the backfilling to be completed, the material is simple to obtain, the construction cost is relatively small, and the construction is convenient and fast.

Description

Technical Field

[0001] This invention relates to the field of scaffolding technology, and more specifically, to a structure and construction method for solving the problem of foundation settlement of ground-supported scaffolding. Background Technology

[0002] In existing projects, most building construction projects are located adjacent to existing sites, resulting in limited space. To minimize the impact on these sites, cast-in-place pile supports are commonly used. However, to effectively develop new sites, the distance between the cast-in-place piles and the basement exterior walls is generally designed to be small. Coupled with tight schedules, many projects choose to backfill the space between the main building basement and the piles with earthwork, and immediately construct the foundation and erect ground-supported scaffolding or cantilevered scaffolding. However, both methods have drawbacks. Ground-supported scaffolding can lead to foundation settlement due to the unstable backfill soil, resulting in the scaffolding being suspended and posing a safety hazard. While cantilevered scaffolding meets schedule requirements, it is relatively expensive. To meet on-site construction schedule needs, an economical and reasonable construction scheme must be selected while ensuring safety. This invention proposes a construction method to solve the problem of foundation settlement for ground-supported scaffolding, effectively addressing the aforementioned issues. Summary of the Invention

[0003] 1. The technical problem that the invention aims to solve

[0004] To address the shortcomings and deficiencies of existing technologies, this invention provides a structure and construction method for solving the problem of foundation settlement in ground-supported scaffolding. This invention involves constructing a reinforced concrete foundation above the capping beam, with the foundation height matching the top elevation of the basement roof slab. After the foundation reaches sufficient strength, I-beams are erected, with both ends resting on the basement roof slab and the constructed foundation, respectively, and securely fixed with U-shaped clamps. The uprights bear the load on the I-beams, effectively preventing scaffold settlement. During construction, ground-supported scaffolding can be erected without waiting for backfilling to be completed. The materials involved are readily available and easy to use. The design process utilizes common techniques, making construction convenient, quick, and cost-effective, while meeting national standards and design requirements.

[0005] 2. Technical Solution

[0006] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0007] The present invention provides a structure for solving the problem of foundation settlement of ground-supported scaffolding, comprising a capping beam and a basement roof slab:

[0008] The surface of the crown beam is pre-embedded with reinforcing bars, and a foundation is poured on the upper surface of the crown beam. A U-shaped clamp is pre-embedded on the top of the foundation.

[0009] The surface of the basement roof slab is also pre-embedded with U-shaped clamps. I-beams are laid together on the upper part of the basement roof slab and the foundation, with the two ends of the I-beams placed in the pre-embedded U-shaped clamps.

[0010] Furthermore, the foundation top elevation is the same as the basement top slab elevation.

[0011] Furthermore, both ends of the I-beam are placed inside U-shaped clamps, and U-shaped clamp tops and washers are placed at the connection between the U-shaped clamps and the I-beams, and are fixed by nuts.

[0012] Furthermore, at the corner where the basement roof slab meets the foundation, an upper H-beam and a lower H-beam are provided. The two ends of the lower H-beam are placed horizontally on the foundation and the basement roof slab, respectively, while the upper H-beam is stacked on top of the lower H-beam. The upper and lower H-beams are fixed together with high-strength bolts.

[0013] Furthermore, the basement roof slab has different elevations at different locations. By using upper I-beams along the span of the scaffolding, with both ends of the upper I-beams set on the lower I-beams, and the lower I-beams laid horizontally with both ends on the foundation and the basement roof slab respectively, the upper and lower I-beams are fixed with high-strength bolts through holes in the flange plates.

[0014] A structure and construction method for solving the problem of foundation settlement of ground-supported scaffolding, the steps of which are as follows:

[0015] S1. Determine the concrete foundation dimensions and reinforcement, I-beam type, matching U-shaped clamps and U-shaped clamp capping type through scaffold load calculation;

[0016] S2. Before pouring the cap beam concrete, by positioning and setting out lines, pre-install foundation pre-embedded reinforcing bars on the cap beam according to the positioning of the scaffolding uprights;

[0017] S3. Construction foundation: Bind foundation reinforcement, set up formwork, and pre-embed U-shaped clamps at the top of the foundation. The top elevation of the foundation is the same as the elevation of the basement roof slab. At the corner, there is a situation where the upper I-beam is erected on the lower I-beam. The foundation height is adjusted to be the same as the bottom elevation of the upper I-beam. After correction, the foundation concrete is poured and vibrated to make it dense.

[0018] S4. Perform basic maintenance and demold after the conditions are met.

[0019] S5. Before pouring the basement roof slab, U-shaped clamps are pre-embedded on the roof slab according to the positioning of the scaffolding uprights. After correction, the basement roof slab concrete is poured.

[0020] S6. After the basement roof slab and foundation strength meet the design requirements, the I-beams are laid. The I-beams are placed in the pre-embedded clamps, and the two ends of the I-beams are fixed by the pre-embedded U-shaped clamps, U-shaped clamp tops, washers and nuts.

[0021] S7. Corner I-beam erection treatment: Basements usually have stairs leading to the ground floor. This part is relatively high compared to other locations and cannot be used for foundations. By using upper I-beams along the span of the uprights, the two ends of the upper I-beams are placed on the foundation and the lower I-beams respectively, and the lower I-beams are placed horizontally on the foundation and the basement roof slab.

[0022] S8. Treatment of different parts of the top plate elevation: The upper I-beam is used along the span of the scaffolding. Both ends of the upper I-beam are set on the lower I-beam. The lower I-beam is laid horizontally, with both ends on the foundation and the top plate of the basement respectively. The upper and lower I-beams are fixed with high-strength bolts by drilling holes in the flange plates.

[0023] S9. After completing the pre-construction condition acceptance of the scaffolding and ensuring that the foundation and basement roof meet the erection requirements, the scaffolding can be erected.

[0024] Furthermore, in S2, the foundation top must be leveled to ensure that the I-beams are placed stably.

[0025] Furthermore, in S3, the U-shaped clamps must be firmly fixed to prevent disturbance during the concrete pouring process.

[0026] Furthermore, in S8, after the upper and lower I-beams are connected with high-strength bolts, they must undergo initial tightening, re-tightening, and final tightening, and pass inspection.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0029] This invention involves constructing a reinforced concrete foundation on the upper part of the cap beam, with the foundation height matching the top elevation of the basement roof slab. After the foundation reaches sufficient strength, H-beams are erected, with both ends resting on the basement roof slab and the constructed foundation, respectively, and securely fixed with U-shaped clamps. The uprights bear the load on the H-beams, effectively preventing scaffolding subsidence. During construction, ground-supported scaffolding can be erected without waiting for backfilling to be completed. The materials involved are readily available and easy to use. The design process utilizes common techniques, making construction convenient, quick, and cost-effective, while meeting national standards and design requirements. Attached Figure Description

[0030] Figure 1 This is a plan view of the present invention;

[0031] Figure 2 This is a schematic diagram of the AA cross-section of the present invention;

[0032] Figure 3 This is a schematic diagram of the connection node between the upper and lower I-beams of the present invention.

[0033] In the diagram: 11. Crown beam; 12. Reinforced concrete foundation; 13. I-beam; 14. U-shaped clamp capping; 15. Scaffolding; 16. Different elevations of the basement roof slab; 17. Upper I-beam; 18. Lower I-beam; 19. U-shaped clamp; 110. Nut; 111. Washer; 112. Basement roof slab; 113. Foundation embedded reinforcing bars; 114. High-strength bolt. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0035] Example 1

[0036] from Figure 1-3 As can be seen, one embodiment of the structure for solving the problem of foundation settlement of ground-supported scaffolding includes a capping beam 11 and a basement roof slab 112:

[0037] The surface of the cap beam 11 is pre-embedded with reinforcing bars 113, and the upper surface of the cap beam 11 is cast with a foundation 12. The top of the foundation 12 is pre-embedded with a U-shaped clamp 19.

[0038] U-shaped clamps 19 are also embedded in the surface of the basement roof slab 112. I-beams 13 are laid together on the upper part of the basement roof slab 112 and the foundation 12. The two ends of the I-beams 13 are placed in the embedded U-shaped clamps 19 respectively.

[0039] The foundation 12 top elevation is the same as the basement top slab 112 elevation.

[0040] The two ends of the I-beam 13 are placed inside the U-shaped clamp 19. At the connection between the U-shaped clamp 19 and the I-beam 13, a U-shaped clamp top 14 and a washer 111 are also placed, and they are fixed by nuts 110.

[0041] At the corner of the basement roof slab 112 and the foundation 12, there are upper H-beams 17 and lower H-beams 18. The two ends of the lower H-beams 18 are placed horizontally on the foundation 12 and the basement roof slab 112 respectively. The upper H-beams 17 are stacked on the lower H-beams 18. The upper H-beams 17 and the lower H-beams 18 are fixed together by high-strength bolts 114.

[0042] There are different elevations 16 on the surface of the basement roof slab 112. The upper I-beam 17 is used along the span of the scaffolding 15. Both ends of the upper I-beam 17 are set on the lower I-beam 18. The lower I-beam 18 is laid horizontally, with both ends on the foundation 12 and the basement roof slab 112 respectively. The upper I-beam 17 and the lower I-beam 18 are fixed with high-strength bolts 114 by drilling holes in the flange plates.

[0043] Example 2

[0044] from Figure 1-3 As can be seen, the steps of the structure and construction method for solving the problem of foundation settlement of ground-supported scaffolding in this embodiment are as follows:

[0045] S1. Determine the dimensions and reinforcement of the concrete foundation 12, the model of the I-beam 13, and the matching U-shaped clamps 110 and U-shaped clamp capping 14 through the load calculation of the scaffolding 15.

[0046] S2. Before pouring concrete for the cap beam 11, by positioning and setting out lines, pre-embedded reinforcing bars 113 are pre-installed on the cap beam 11 according to the positioning of the uprights of the scaffolding 15.

[0047] The foundation 12 must be leveled to ensure that the I-beam 13 is placed stably;

[0048] S3. Construction of foundation 12: Binding of foundation reinforcement 113, formwork erection, and pre-embedding of U-shaped clamps 19 at the top of foundation 12. The top elevation of foundation 12 is the same as the elevation of basement roof slab 112. At the corner, there is a situation where the upper I-beam 17 is erected on the lower I-beam 18. The height of foundation 12 is adjusted to be the same as the bottom elevation of the upper I-beam 17. After correction, concrete is poured into foundation 12 and vibrated to compact it.

[0049] The U-shaped clamp 19 must be firmly fixed to prevent disturbance during concrete pouring;

[0050] S4. Perform basic curing 12. Once the conditions are met, remove the formwork.

[0051] S5. Before pouring the basement roof slab 112, U-shaped clamps 110 are pre-embedded on the roof slab according to the positioning of the scaffolding 15 uprights. After correction, the concrete of the basement roof slab 112 is poured.

[0052] S6. After the basement roof slab 112 and foundation 12 meet the design requirements, the I-beam 13 is laid and placed in the pre-embedded clamps. The two ends of the I-beam 13 are fixed by the pre-embedded U-shaped clamps 110, U-shaped clamp top 14, gaskets 111 and nuts 110.

[0053] S7. Corner I-beam 13 erection treatment: The basement usually has a staircase leading to the ground floor. This part is relatively high compared to other parts and cannot be used for foundation. By using the upper I-beam 17 along the span of the upright, the two ends of the upper I-beam 17 are placed on the foundation 12 and the lower I-beam 18 respectively. The lower I-beam 18 is placed horizontally on the foundation 12 and the basement roof slab 112.

[0054] S8. Treatment of different parts of the top plate elevation 16: The upper I-beam 17 is used along the span direction of the scaffolding 15. Both ends of the upper I-beam 17 are set on the lower I-beam 18. The lower I-beam 18 is laid horizontally, with both ends on the foundation 12 and the basement top plate 112 respectively. The upper I-beam 17 and the lower I-beam 18 are fixed with high-strength bolts 114 by drilling holes in the flange plates.

[0055] After the upper H-beam 17 and the lower H-beam 18 are connected with high-strength bolts 114, they must undergo initial tightening, re-tightening, and final tightening, and pass the inspection.

[0056] S9. After completing the pre-construction condition acceptance of scaffolding 15 and ensuring that the foundation 12 and the basement roof slab 112 meet the erection requirements, scaffolding 15 can be erected.

[0057] This invention involves constructing a reinforced concrete foundation 12 on the upper part of the cap beam 11. The height of the foundation 12 is the same as the top elevation of the basement roof slab 112. After the foundation 12 reaches the required strength, an I-beam 13 is erected. The two ends of the I-beam 13 are respectively placed on the basement roof slab 112 and the foundation 12, and are firmly fixed by U-shaped clamps 19. The uprights bear the force on the I-beam 13, thereby effectively preventing the scaffold from sinking.

[0058] The dimensions and reinforcement of the foundation 12 are determined based on the scaffold load calculation and are set separately along the scaffold location to ensure uniform stress. This construction method only incurs rental costs for the I-beams 13, which differs from the billing rules for cantilever scaffolding and is relatively cheaper. It avoids the high investment of cantilever scaffolding while ensuring the safe use of ground-supported scaffolding. It also avoids a series of problems caused by uneven settlement of the foundation due to earthwork backfilling, making it suitable for construction sites with limited space and tight schedules.

[0059] This invention proposes a construction method for solving the problem of foundation settlement of ground-supported scaffolding. Ground-supported scaffolding can be erected without waiting for backfilling to be completed. The materials involved are simple to obtain and easy to use. The design process uses common techniques, making construction convenient and quick, with low construction costs, and meeting national standards and design requirements.

[0060] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A structure for solving the problem of foundation settlement of ground-supported scaffolding, comprising a capping beam (11) and a basement roof slab (112), characterized in that: The surface of the crown beam (11) is pre-embedded with reinforcing bars (113), and a foundation (12) is poured on the upper surface of the crown beam (11). A U-shaped clamp (19) is pre-embedded on the top of the foundation (12). The surface of the basement roof slab (112) is also pre-embedded with U-shaped clamps (19). The basement roof slab (112) and the upper part of the foundation (12) are jointly laid with I-beams (13), and the two ends of the I-beams (13) are respectively placed in the pre-embedded U-shaped clamps (19).

2. The structure for solving the problem of foundation subsidence of ground-supported scaffolding according to claim 1, characterized in that: The top elevation of the foundation (12) is the same as the elevation of the basement top slab (112).

3. The structure for solving the problem of foundation subsidence of ground-supported scaffolding according to claim 1, characterized in that: The two ends of the I-beam (13) are placed inside the U-shaped clamp (19). At the connection between the U-shaped clamp (19) and the I-beam (13), a U-shaped clamp top (14) and a washer (111) are placed and fixed by a nut (110).

4. The structure for solving the problem of foundation settlement of ground-supported scaffolding according to claim 3, characterized in that: At the corner of the basement roof slab (112) and the foundation (12), there are upper I-beams (17) and lower I-beams (18). The two ends of the lower I-beams (18) are placed horizontally on the foundation (12) and the basement roof slab (112), respectively. The upper I-beams (17) are stacked on the lower I-beams (18). The upper I-beams (17) and the lower I-beams (18) are fixed together by high-strength bolts (114).

5. A structure for solving the problem of foundation settlement of ground-supported scaffolding according to claim 4, characterized in that: The basement roof slab (112) has different elevations (16) on its surface. By using an upper I-beam (17) along the span of the scaffold (15), both ends of the upper I-beam (17) are set on the lower I-beam (18), and the lower I-beam (18) is laid horizontally with its ends on the foundation (12) and the basement roof slab (112) respectively. The upper I-beam (17) and the lower I-beam (18) are fixed with high-strength bolts (114) by making holes in the flange plates.

6. The construction method for solving the problem of foundation settlement of ground-supported scaffolding according to claim 5, characterized in that: The steps are as follows: S1. Determine the dimensions and reinforcement of the concrete foundation (12), the model of the I-beam (13), the matching U-shaped clamps (110), and the model of the U-shaped clamp capping (14) through the load calculation of the scaffolding (15); S2. Before pouring the concrete of the cap beam (11), by positioning and setting out, the foundation pre-embedded reinforcing bars (113) are pre-installed on the cap beam (11) according to the positioning of the uprights of the scaffolding (15). S3, Construction foundation (12), binding of foundation reinforcement (113), formwork and pre-embedding of U-shaped clamps (19) on the top of foundation (12), the top elevation of foundation (12) is the same as the elevation of basement top slab (112), at the corner there is a situation where the upper I-beam (17) is erected on the lower I-beam (18), the height of foundation (12) is adjusted to be the same as the bottom elevation of the upper I-beam (17), after correction, foundation (12) concrete is poured and vibrated to compact; S4. Perform basic (12) curing and demold after the conditions are met; S5. Before pouring the basement roof slab (112), U-shaped clamps (110) are also pre-embedded on the roof slab according to the positioning of the uprights of the scaffolding (15). After correction, the concrete of the basement roof slab (112) is poured. S6. After the basement roof slab (112) and foundation (12) meet the design requirements, the I-beam (13) is laid and placed in the pre-embedded clamps. The two ends of the I-beam (13) are fixed by the pre-embedded U-shaped clamps (110), U-shaped clamp top (14), gaskets (111) and nuts (110). S7. Corner I-beam (13) erection treatment: The basement usually has a staircase leading to the ground floor. This part is relatively high compared to other parts and cannot be used for foundation. The upper I-beam (17) is used along the span of the upright. The two ends of the upper I-beam (17) are placed on the foundation (12) and the lower I-beam (18) respectively. The lower I-beam (18) is placed horizontally on the foundation (12) and the basement roof slab (112). S8. Treatment of different parts of the top plate elevation (16): The upper I-beam (17) is used along the span direction of the scaffold (15). Both ends of the upper I-beam (17) are set on the lower I-beam (18). The lower I-beam (18) is laid horizontally, with both ends on the foundation (12) and the basement top plate (112) respectively. The upper I-beam (17) and the lower I-beam (18) are fixed with high-strength bolts (114) by opening holes in the flange plate. S9. Before erecting the scaffold (15), after the pre-construction condition acceptance is completed, ensure that the foundation (12) and the basement roof slab (112) meet the erection requirements, and the scaffold (15) can be erected.

7. A construction method for solving the problem of foundation settlement of ground-supported scaffolding according to claim 6, characterized in that: In S2, the top of the foundation (12) must be leveled to ensure that the I-beam (13) is placed stably.

8. A construction method for solving the problem of foundation settlement of ground-supported scaffolding according to claim 6, characterized in that: In S3, the U-shaped clamp (19) must be firmly fixed to prevent disturbance during concrete pouring.

9. A construction method for solving the problem of foundation settlement of ground-supported scaffolding according to claim 6, characterized in that: In the S8 described above, the upper I-beam (17) and the lower I-beam (18) must be connected by high-strength bolts (114) and undergo initial tightening, re-tightening, and final tightening, and pass the acceptance test.

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