Foundation reinforcing structure of construction elevator

Abstract

The utility model relates to the technical field of construction elevator installation methods, in particular to a construction elevator foundation reinforcing structure which comprises a soil layer, a load-bearing steel frame and a cast-in-place pile, the load-bearing steel frame is inserted into the soil layer, a cast-in-place hole is formed in the soil layer, the bottom of the load-bearing steel frame is inserted into the cast-in-place hole, and the cast-in-place pile is arranged in the cast-in-place hole. And concrete is poured into a gap between the load-bearing steel frame and the pouring hole to form a cast-in-place pile. The construction elevator has the advantage that the installation safety of the construction elevator is improved.

Description

Technical Field

[0001] The present application relates to the technical field of construction elevator installation methods, and in particular to a construction elevator foundation reinforcement structure. Background Art

[0002] During the construction process of the construction elevator foundation, it is often encountered that the construction elevator foundation is arranged on the backfill soil. The traditional practice is to compact the backfill soil in layers, but it is difficult to ensure that the compaction requirements of the fertilizer trough backfill soil are met. Large-scale settlement is prone to occur in the later stage, and safety is not guaranteed and the security is poor. Utility Model Content

[0003] In order to improve the installation safety of a construction elevator, the present application provides a construction elevator foundation reinforcement structure.

[0004] The application provides a construction elevator foundation reinforcement structure that adopts the following technical solution:

[0005] A construction elevator foundation reinforcement structure includes a soil layer, a load-bearing steel frame and cast-in-place piles, wherein the load-bearing steel frame is inserted into the soil layer, a casting hole is opened in the soil layer, the bottom of the load-bearing steel frame is inserted into the casting hole, and concrete is poured in the gap between the load-bearing steel frame and the casting hole to form a cast-in-place pile.

[0006] By adopting the above technical solution, the soil layer is reinforced by load-bearing steel frames and bored piles, which reduces the possibility of soil settlement and improves the installation safety of the construction elevator.

[0007] Optionally, the number of the bored piles and the number of the cast-in-place holes are both multiple, and the bored piles and the cast-in-place holes correspond one to one, and the multiple bored piles are evenly arranged inside the soil layer, and the load-bearing steel frame includes support rods, the number of the support rods is equal to the number of the bored piles, and each cast-in-place hole is provided with a support rod.

[0008] By adopting the above technical solution, the bearing capacity of the soil layer is enhanced through the cooperation of support rods and cast-in-place piles. At the same time, the evenly arranged cast-in-place piles and support rods enable the foundation soil layer to be evenly strengthened, thereby improving the bearing capacity of the soil layer, reducing the possibility of soil settlement, and improving the installation safety of the construction elevator.

[0009] Optionally, the load-bearing steel frame also includes a mounting platform fixedly connected to the top of the support rod, and the mounting platform covers the surface of the soil layer.

[0010] By adopting the above technical solution, an installation location is provided for the installation of the construction elevator. At the same time, the installation platform is used to reduce the area of ​​direct contact between the construction elevator and the soil layer. The gravity of the construction elevator is shared by the support rods and cast-in-place piles, sharing the stress of the soil layer, reducing the possibility of soil settlement due to stress, and improving the safety of the installation of the construction elevator.

[0011] Optionally, it also includes a basement exterior wall and a structural floor, wherein the basement exterior wall is located below the structural floor, and the load-bearing steel frame also includes a pulling component fixedly connected to the structural floor, and the pulling component is fixedly connected to the mounting platform.

[0012] By adopting the above technical solution, the soil layer, structural floor, basement outer wall and construction elevator are connected as one through a load-bearing steel frame, so that the existing structural floor and basement outer wall can also share the weight of the construction elevator, thereby reducing and sharing the force on the soil layer, reducing the possibility of soil settlement, and improving the installation safety of the construction elevator.

[0013] Optionally, the pulling assembly includes an embedded anchor ring fixedly connected to the structural floor and a pulling rod fixedly connected to the structural floor, the number of the pulling rods and the number of the embedded anchor rings are both at least two, one end of the pulling rod is fixedly connected to the mounting platform, and the other end of the pulling rod passes through the embedded anchor ring, there is a height difference between the soil layer and the structural floor, the pulling rod is a broken line pulling rod, and the bottom surface of the pulling rod is in contact with the upper surface of the structural floor.

[0014] By adopting the above technical solution, the pre-buried anchor ring connects the pull rod and the structural floor as one, and the installation platform and the structural floor are connected as one through the pull rod, thereby achieving the purpose of sharing the force of the installation platform on the structural floor and the outer wall of the basement.

[0015] Optionally, the load-bearing steel frame further includes a rib plate, one end of the rib plate is fixedly connected to the surface of the mounting platform, and the other end of the rib plate is fixedly connected to the surface of the pulling rod, and the number of the rib plates is equal to the number of the pulling rods.

[0016] By adopting the above technical solution, the installation platform is subjected to the pulling force of the ribs along its own direction, which has a vertical upward component of force on the installation platform, thereby reducing the pressure of the installation platform and the construction elevator on the soil layer and reducing the possibility of soil settlement. At the same time, the force of the ribs is shared to the pull rods and the structural floor slabs, further reducing the possibility of soil settlement and improving the installation safety of the construction elevator.

[0017] Optionally, the axis of the injection hole is parallel to the vertical direction.

[0018] By adopting the above technical solution, the installation platform is evenly stressed.

[0019] Optionally, a plurality of the injection holes are evenly arranged below the mounting platform.

[0020] By adopting the above technical solution, the installation platform is evenly stressed.

[0021] Optionally, a plurality of steel bars installed on the top surface of the installation platform are welded to the top surface of the installation platform, and concrete is poured to form a reinforced concrete structure layer.

[0022] By adopting the above technical solution, the force-bearing capacity of the present application is enhanced and the installation safety of the construction elevator is improved.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] The present application utilizes ribs and tie rods to distribute the forces borne by the construction elevator foundation to the structural floor, thereby ensuring the bearing capacity of the support rods and cast-in-place pile supports, reducing the dependence of the concrete foundation slab on the backfill soil layer, and improving the stability of the elevator foundation;

[0025] The installation platform in this application is fixed to the inside of the foundation soil layer by support rods, and the tension rods and ribs fix the installation platform to the structural floor, realizing the "upper pull and lower support" form. The structure has clear force, is safe and reliable, has a simple process, is economical and reasonable, and adopts a typical structural mechanics force model to stably and efficiently solve the foundation settlement problem, ensure the stability of the construction elevator foundation, and improve the installation safety of the construction elevator.

[0026] This application makes full use of the structural floor and basement exterior wall structure, and uses the bearing capacity of the building structure itself to avoid reinforcing the backfill soil, saving the reinforcement cost. There is no need to consider the impact of stress changes after settlement, ensuring the stability of the foundation, which is not affected by the completion time of the backfill soil and future settlement, and effectively avoids the series of rectification and rework and maintenance costs caused by settlement caused by traditional forms. At the same time, the load-bearing steel frames are all made of materials commonly found on the construction site, reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a construction elevator foundation reinforcement structure disclosed in an embodiment of the present application.

[0028] Figure 2 This is a schematic diagram of an embodiment of the present application in which a small portion of the reinforced concrete structure layer is retained in order to emphasize the positional relationship of the installation platform.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. Soil layer; 11. Casting hole; 2. Load-bearing steel frame; 21. Support rod; 22. Installation platform; 23. Pulling assembly; 231. Embedded anchor ring; 232. Pulling rod; 24. Rib plate; 3. Cast-in-place piles; 4. Basement exterior wall; 5. Structural floor slab; 6. Reinforced concrete structural layer. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 2 This application is described in further detail.

[0031] At present, in order to improve the installation safety of a construction elevator, an embodiment of the present application proposes a construction elevator foundation reinforcement structure.

[0032] The present application embodiment discloses a construction elevator foundation reinforcement structure. Figure 1 and Figure 2 A construction elevator foundation reinforcement structure includes a soil layer 1, a basement outer wall 4, a structural floor 5, a load-bearing steel frame 2 inserted into the soil layer 1, and cast-in-place piles 3 poured into the soil layer 1. The structural floor 5 is located on the top of the basement outer wall 4. There is a height difference between the soil layer 1 and the structural floor. This is the existing construction environment. When installing, the present application fully utilizes and relies on the existing construction environment and construction scene to reduce the construction cost of the construction elevator reinforcement structure. The soil layer 1 is provided with a casting hole 11. The bottom of the load-bearing steel frame 2 is inserted into the casting hole 11. Concrete is poured in the gap between the load-bearing steel frame 2 and the casting hole 11 to form a cast-in-place pile 3. The load-bearing steel frame 2 is formed through the cast-in-place pile 3. It is fixedly connected to the inside of the soil layer 1, so that the strength of the soil layer 1 is reinforced and improved by the bored piles 3, and the force on the load-bearing steel frame 2 is more stable. The load-bearing steel frame 2 is fixedly connected to the structural floor 5, so that the load-bearing steel frame 2 is erected between the soil layer 1 and the structural floor. When the user installs the construction elevator on the load-bearing steel frame 2, the bored piles 3 enable the load-bearing steel frame 2 to be able to bear the force stably, reducing the possibility of settlement. At the same time, the structural floor 5 can also share the force on the load-bearing steel frame 2. The structural floor 5 transmits the pressure to the basement outer wall 4, so that the pressure generated by the construction elevator is shared by the existing building structure, which again reduces the possibility of settlement and improves the installation safety of the construction elevator.

[0033] Reference Figure 1 and Figure 2 There are multiple pouring holes 11. In the embodiment of the present application, there are five pouring holes 11. The axes of the pouring holes 11 are parallel to the vertical direction. The five pouring holes 11 are respectively located at the four corners of the soil layer 1 and the intersection points of their diagonals.

[0034] At the same time, refer to Figure 1 and Figure 2The main body of the load-bearing steel frame 2 is welded by I-beams, which reduces the construction cost while ensuring the installation stability of the load-bearing steel frame 2 itself. The load-bearing steel frame 2 includes a support rod 21 inserted into the grouting hole 11, a mounting platform 22 fixedly connected to the top of the support rod 21, a pulling assembly 23 fixedly connected to the structural floor 5, and a rib 24 fixedly connected to the mounting platform 22. The number of support rods 21 is multiple, and the number of support rods 21 is equal to the number of grouting holes 11, and each grouting hole 11 is provided with a support rod 21. The number of cast-in-place piles 3 is multiple, and the number of cast-in-place piles 3 is equal to the number of cast-in-place holes 11, and the cast-in-place piles 3 and the cast-in-place holes 11 correspond one to one, so as to achieve the purpose of uniformly arranging multiple cast-in-place piles 3 inside the soil layer 1. In the embodiment of the present application, the number of support rods 21 and the number of cast-in-place piles 3 are both five. The support rods 21 are cast and fixed inside the grouting hole 11 along the vertical direction, so that the mounting platform 22 is evenly stressed, thereby achieving a stable connection to the mounting platform 22.

[0035] Further, see Figure 1 and Figure 2 The installation platform 22 is located at the top of the soil layer 1, so that the installation platform 22 can cover the surface of the soil layer 1, and the purpose of installing the construction elevator on the installation platform 22 is achieved. The installation platform 22 is welded by multiple No. 16 I-beams. In the embodiment of the present application, the installation platform 22 is fixed by five I-beams to form a "middle"-shaped installation platform 22, which improves the installation stability of the installation platform 22 itself, improves the load-bearing capacity of the installation platform 22, reduces the possibility of settlement, and improves the safety of the present application.

[0036] Furthermore, multiple pouring holes 11 are evenly arranged below the installation platform 22, wherein four pouring holes 11 are respectively located at the four corners of the edge of the installation platform 22, and the fifth pouring hole 11 is located at the center of the installation platform 22, so that the installation platform 22 is evenly stressed, thereby improving the installation safety of the construction elevator.

[0037] Reference Figure 1 and Figure 2 The pulling assembly 23 includes a pre-buried anchor ring 231 fixedly connected to the structural floor 5 and a pulling rod 232 fixedly connected to the structural floor 5. The number of the pulling rods 232 and the number of the pre-buried anchor rings 231 are both at least two. In the embodiment of the present application, the number of the pulling rods 232 is two. Due to the height difference between the soil layer 1 and the structural floor 5, the pulling rods 232 are broken-line pulling rods 232. One end of the two pulling rods 232 is respectively fixedly connected to the two sides of the mounting platform 22 to achieve the purpose of fixing the pulling assembly 23 to the mounting platform 22. The other end of the pulling rod 232 passes through the pre-buried anchor ring 231. The bottom surface of the pulling rod 232 is attached to the upper surface of the structural floor 5. The pulling rod 232 is fixed to the structural floor 5 by the pre-buried anchor ring 231 to achieve a stable connection of the pulling rod 232.

[0038] Reference Figure 1 and Figure 2 One end of the rib 24 is fixedly connected to the surface of the mounting platform 22, and the other end of the rib 24 is fixedly connected to the surface of the pulling rod 232. The number of the ribs 24 is equal to the number of the pulling rods 232. In the embodiment of the present application, the number of the ribs 24 is two. Since the pulling rod 232 is in a broken line shape, the user applies a force to the mounting platform 22 along the length direction of the rib 24 through the rib 24. The rib 24 and the pulling rod 232 jointly fix and pull the mounting platform 22, thereby improving the bearing capacity of the mounting platform 22, improving the installation stability of the construction elevator, and improving the installation safety of the construction elevator.

[0039] Further, see Figure 1 and Figure 2 After the user has completed welding the load-bearing steel frame 2 , a plurality of steel bars installed on the top surface of the installation platform 22 are welded to reinforce the top surface of the installation platform 22 , and concrete is poured to form a reinforced concrete structure layer 6 .

[0040] The implementation steps of the embodiment of the present application are as follows: first, determine the position of the construction elevator foundation on the layered and compacted fertilizer trough and lay out the foundation soil layer 1 for excavation. According to the thickness of the method at that place in the outdoor landscape garden drawing, the elevation is calculated in reverse to determine the top elevation of the construction elevator foundation to avoid additional economic costs caused by chiseling in the later stage. Secondly, the structural dimensions, concrete grade, reinforcement, etc. of the construction elevator foundation should be determined according to the model, deadweight, rated load, dynamic load, wind load and deadweight of the foundation structure of the selected construction elevator. The bottom elevation of the construction elevator foundation is obtained by subtracting the thickness of the construction elevator foundation from the top elevation of the construction elevator foundation (it is recommended to calculate in reverse based on the outdoor elevation). After the excavation is completed, the soil layer 1 in the excavation area is compacted again, and the loose soil is removed.

[0041] Then, mark the drilling positions of the bored piles 3 at the four corners and the intersection of the diagonals in the foundation soil layer 1 area, and specify the hole diameter and drilling depth. Taking the construction elevator model SC200 / 200 as an example, the hole diameter is 0.6 meters and the depth is 1.5 meters. Then, start manually digging the bored hole 11. After the hole is dug, it must be effectively cleaned to remove the loose soil.

[0042] After the excavation of the foundation soil layer 1 and the grouting hole 11 of the construction elevator is completed, the bottom surface steel bars of the construction elevator are laid. The bottom surface steel bars of the foundation are arranged according to 12*250, and the steel bar protection layer is 50mm. After the bottom steel bars are laid, a support rod 21 with a length slightly longer than the depth of the grouting hole 11 is vertically inserted into each grouting hole 11 by mechanical and manual means, and then five I-beams are placed above the top of the support rod 21, and the five I-beams are effectively fully welded to form an installation platform 22. Two I-beams with an angle of 45° with the structural floor 5 are welded at the ends of the I-beams distributed on both sides of the installation platform 22 to form a rib plate 24, and a 90° broken line I-beam is welded at the ends of the I-beams distributed on both sides of the installation platform 22 to form a pull rod 232, and the other end of the rib plate 24 is welded to the pull rod 232. The other end of the pull rod 232 is fixed with a pre-buried anchor ring 231. After the welding of the load-bearing steel frame 2 is completed, the upper layer of the elevator foundation steel bars are tied on the top of the installation platform 22, and then an inspection and hidden acceptance are carried out. After the acceptance is passed, concrete with a strength grade of C35 is poured to form a reinforced concrete structure layer 6, and the flatness of the concrete surface is controlled within 10 mm.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction elevator foundation reinforcement structure, comprising a soil layer (1), characterized in that: It also comprises a load-bearing steel frame (2) and a cast-in-place pile (3), wherein the load-bearing steel frame (2) is inserted into the interior of the soil layer (1), a cast-in-place hole (11) is opened in the soil layer (1), the bottom of the load-bearing steel frame (2) is inserted into the interior of the cast-in-place hole (11), and concrete is poured into the gap between the load-bearing steel frame (2) and the cast-in-place hole (11) to form the cast-in-place pile (3).

2. A construction elevator foundation reinforcement structure according to claim 1, characterized in that: The number of the cast-in-place piles (3) and the number of the cast-in-place holes (11) are both multiple, and the cast-in-place piles (3) and the cast-in-place holes (11) correspond one to one. The multiple cast-in-place piles (3) are evenly arranged inside the soil layer (1). The load-bearing steel frame (2) includes support rods (21), the number of the support rods (21) is equal to the number of the cast-in-place piles (3), and each cast-in-place hole (11) is provided with a support rod (21).

3. A construction elevator foundation reinforcement structure according to claim 2, characterized in that: The load-bearing steel frame (2) further comprises a mounting platform (22) fixedly connected to the top of the support rod (21), and the mounting platform (22) covers the surface of the soil layer (1).

4. A construction elevator foundation reinforcement structure according to claim 3, characterized in that: It also includes a basement exterior wall (4) and a structural floor (5), wherein the basement exterior wall (4) is located below the structural floor (5), and the load-bearing steel frame (2) also includes a pulling component (23) fixedly connected to the structural floor (5), and the pulling component (23) is fixedly connected to the mounting platform (22).

5. A construction elevator foundation reinforcement structure according to claim 4, characterized in that: The pulling assembly (23) comprises a pre-buried anchor ring (231) fixedly connected to the structural floor (5) and a pulling rod (232) fixedly connected to the structural floor (5); the number of the pulling rod (232) and the number of the pre-buried anchor ring (231) are both at least two; one end of the pulling rod (232) is fixedly connected to the mounting platform (22); the other end of the pulling rod (232) passes through the pre-buried anchor ring (231); there is a height difference between the soil layer (1) and the structural floor (5); the pulling rod (232) is a broken line pulling rod (232); the bottom surface of the pulling rod (232) is in contact with the upper surface of the structural floor (5).

6. A construction elevator foundation reinforcement structure according to claim 5, characterized in that: The load-bearing steel frame (2) also includes a rib plate (24), one end of which is fixedly connected to the surface of the mounting platform (22), and the other end of which is fixedly connected to the surface of the pulling rod (232), and the number of the rib plates (24) is equal to the number of the pulling rods (232).

7. A construction elevator foundation reinforcement structure according to claim 2, characterized in that: The axis of the injection hole (11) is parallel to the vertical direction.

8. A construction elevator foundation reinforcement structure according to claim 3, characterized in that: The plurality of injection holes (11) are evenly arranged below the mounting platform (22).

9. A construction elevator foundation reinforcement structure according to claim 3, characterized in that: A plurality of steel bars mounted on the top surface of the installation platform (22) are welded to the top surface of the installation platform (22), and concrete is poured to form a reinforced concrete structure layer (6).

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