Construction hoist foundation

Abstract

The utility model relates to the technical field of construction hoists, in particular to a construction hoist foundation which comprises a concrete foundation and a reinforcing structure located below the concrete foundation. The reinforcing structure comprises a sleeve and a reinforcement cage, the sleeve is vertically arranged, the lower end of the sleeve extends to the bottom of the foundation pit, the upper end of the sleeve is higher than the lower bottom face of the concrete foundation, and the reinforcement cage is arranged in the sleeve in a full-length mode. The concrete foundation comprises a concrete foundation mesh, and main reinforcements of the reinforcement cage are connected with the concrete foundation mesh; and the sleeve is filled with concrete and is integrally poured with the concrete foundation. The sleeve is a PVC pipe or a corrugated pipe with the diameter larger than or equal to phi 200 mm, and the upper end of the sleeve is 50 mm higher than the lower bottom face of the concrete foundation. The reinforcement cage and the concrete foundation are integrally poured, so that the concrete in the sleeve and the concrete foundation form a whole, and the stability of the concrete foundation is improved. Foundation settlement of the construction hoist in the subsequent construction process is avoided, and the safety of the construction hoist is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction elevators, and more specifically, to a construction elevator foundation. Background Art

[0002] Collapsible loess is a special type of soil, mainly distributed in the Loess Plateau area of ​​the Yellow River Basin in North China. It is characterized by relatively uniform soil and loose structure. When not soaked in water, it is generally strong and less compressible. However, when it is soaked in water and under a certain pressure, the soil structure will be quickly destroyed, resulting in large additional sinking and rapid reduction in strength. Therefore, when installing a construction elevator on a collapsible loess site, comprehensive measures must be taken, mainly for foundation treatment, for the backfill soil under the foundation to prevent the foundation from collapsing and causing harm to the equipment.

[0003] Before installation, traditional construction elevators all use the same construction method to make the foundation concrete of the construction elevator. However, due to the different local climate conditions and geology, the construction elevator installed on the loose collapsible loess must effectively dispose of the backfill soil. If the construction of the foundation concrete of the construction elevator is carried out in the conventional way, it may cause the settlement risk of the subsequent construction elevator foundation. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, a construction elevator foundation is provided which increases the elevator stability and reduces settlement.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A construction elevator foundation comprises a concrete foundation and a reinforcement structure located below the concrete foundation;

[0007] The reinforcement structure includes a casing and a steel cage, wherein the casing is vertically arranged, the lower end of the casing extends to the bottom of the foundation pit, the upper end of the casing is higher than the bottom surface of the concrete foundation, and a steel cage is arranged in the casing throughout the length;

[0008] The concrete foundation includes a concrete foundation mesh, and the main reinforcement of the steel cage is connected to the concrete foundation mesh;

[0009] The sleeve is filled with concrete and cast integrally with the concrete foundation.

[0010] Preferably, the sleeve is a PVC pipe or a corrugated pipe with a diameter of ≥Φ200mm, and the height of the upper end of the sleeve is 50mm higher than the bottom surface of the concrete foundation.

[0011] Preferably, a plurality of the reinforcement structures are arranged below the concrete foundation.

[0012] Preferably, a mounting frame is fixedly provided on the upper end of the concrete foundation, and the upper end of the mounting frame is connected to the foundation frame of the construction elevator through reinforcing bolts.

[0013] Preferably, the mounting frame includes a base plate and a support block, the concrete foundation is provided with embedded bolts, the base plate is fixedly connected to the upper end of the concrete foundation by the embedded bolts, a plurality of support blocks are provided at the upper end of the base plate, and the plurality of support blocks are fixedly connected to the base plate; the basic frame is fixedly connected to the upper end of the support block.

[0014] Preferably, a stepped through hole with a larger upper portion and a smaller lower portion is provided in the middle of the support block along the vertical direction, a nut is provided in the large diameter hole of the stepped through hole, and the upper end of the embedded bolt is threadedly connected to the nut;

[0015] The top of the support block is provided with a threaded hole, the basic chassis is provided with a through hole coaxial with the threaded hole, and the basic chassis is fixedly connected to the support block by reinforcing bolts.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model sets a steel cage and casts it integrally with the concrete foundation, so that the concrete in the casing and the concrete foundation form a whole, increasing the stability of the concrete foundation, avoiding foundation settlement of the construction hoist during the subsequent construction process, and ensuring the safety of the construction hoist.

[0018] 2. The utility model provides a mounting frame to facilitate the installation and disassembly of the construction hoist and the foundation, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0022] In the figure: 1-concrete foundation, 11-concrete foundation mesh, 2-reinforcement structure, 21-casing, 22-reinforcement cage, 3-foundation pit, 4-mounting frame, 41-reinforcement bolt, 42-support block, 43-embedded bolt, 44-step through hole, 45-nut, 46-base plate, 5-construction elevator, 51-foundation base frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 to Figure 2 As shown, a construction elevator foundation is mainly used for the installation of construction elevators under collapsible loess geological conditions to enhance the stability of the construction elevator.

[0025] It includes a concrete foundation 1, a reinforcement structure 2 located below the concrete foundation 1, and a mounting frame 4. The reinforcement structure 2 is arranged in multiples below the concrete foundation 1. The concrete foundation 1 includes a concrete foundation mesh 11. The reinforcement structure 2 includes a casing 21 and a steel cage 22. The casing 21 is arranged vertically, and the lower end of the casing 21 extends to the bottom of the foundation pit 3. The steel cage 22 is arranged throughout the casing 21. The main reinforcement of the steel cage 22 is connected to the concrete foundation mesh 11. The steel cage 22 and the concrete foundation mesh 11 are cast with concrete as a whole, so that the concrete foundation 1 and the reinforcement structure 2 form a whole.

[0026] By providing the sleeve 21, it is convenient to place the steel cage 22 and form a casting cavity. The sleeve 21 adopts a PVC pipe or a corrugated pipe with a diameter of ≥Φ200mm, and preferably a corrugated pipe with a larger friction coefficient.

[0027] The upper end height of the sleeve 21 should be higher than the bottom surface of the concrete foundation 1. Preferably, the concrete foundation 1 is 50 mm higher than the bottom surface of the concrete foundation 1 to ensure the docking effect with the concrete foundation 1 and facilitate pouring.

[0028] The mounting frame 4 includes a bottom plate 46 and a support block 42. The concrete foundation 1 is provided with embedded bolts 43. The bottom plate 46 is fixedly connected to the upper end of the concrete foundation 1 through the embedded bolts 43. A plurality of support blocks 42 are provided on the upper end of the bottom plate 46. The plurality of support blocks 42 are fixedly connected to the bottom plate 46. The foundation frame 51 is fixedly connected to the upper end of the support block 42. By providing the mounting frame 4, it is convenient to connect the construction hoist 1 to the concrete foundation 1.

[0029] Preferably, a stepped through hole 44 with a larger upper portion and a smaller lower portion is provided in the middle of the support block 42 in the vertical direction, a nut 45 is provided in the large diameter hole of the stepped through hole 44, and the upper end of the embedded bolt 43 is threadedly connected with the nut 45, and the embedded bolt 43 simultaneously fixes the support block 42 and the bottom plate 46 to the concrete foundation 1. A plurality of threaded holes are provided on the top of the support block 42, and a through hole coaxial with the threaded hole is provided on the foundation chassis, and the foundation chassis 51 is fixedly connected to the support block 42 by reinforcing bolts 41.

[0030] How to do it:

[0031] The foundation pit 3 is excavated to the natural floor of the foundation trench backfill soil. When the excavation depth of the foundation pit 3 is large, the slope should be set, and then the backfill soil foundation gray soil should be backfilled. The concrete foundation 1 is reinforced simultaneously when the backfill soil is backfilled. A PVC pipe sleeve 21 of not less than Φ200mm is selected to stand within the vertical projection range of the concrete foundation 1. The length of the pipe sleeve 21 should be greater than the backfill soil backfill depth until it is placed below the concrete foundation 1 and exceeds the bottom surface of the concrete foundation 1 by 50mm. The pipe sleeve 21 is in a vertical state with the concrete foundation 1. A steel cage 22 is arranged in the pipe sleeve 21. The steel cage 22 can be mechanically connected with on-site waste materials. The main reinforcement of this steel cage 22 is connected to the steel mesh of the concrete foundation 1. The concrete foundation 1 and the pipe sleeve 21 are poured at the same time to form a whole, so as to increase the stability of the concrete foundation 1. Avoid settlement of the construction elevator 5 in subsequent use. Ensure the stability and safety of the construction elevator.

[0032] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A construction hoist foundation, characterized in that: It comprises a concrete foundation (1) and a reinforcement structure (2) located below the concrete foundation (1); The reinforcement structure (2) comprises a sleeve (21) and a steel cage (22); the sleeve (21) is arranged vertically, the lower end of the sleeve (21) extends to the bottom of the foundation pit (3), the upper end of the sleeve (21) is higher than the lower bottom surface of the concrete foundation (1), and the steel cage (22) is arranged throughout the length of the sleeve (21); The concrete foundation (1) comprises a concrete foundation mesh (11), and the main reinforcement of the steel cage (22) is connected to the concrete foundation mesh (11); The sleeve (21) is filled with concrete and is cast integrally with the concrete foundation (1).

2. A construction elevator foundation according to claim 1, characterized in that: The sleeve (21) is a PVC pipe or a corrugated pipe with a diameter of ≥Φ200 mm. The upper end of the sleeve (21) is 50 mm higher than the lower bottom surface of the concrete foundation (1).

3. A construction elevator foundation according to claim 1, characterized in that: A plurality of the reinforcement structures (2) are arranged below the concrete foundation (1).

4. A construction elevator foundation according to claim 1, characterized in that: A mounting frame (4) is fixedly provided on the upper end of the concrete foundation (1), and the upper end of the mounting frame (4) is connected to a base frame (51) of a construction elevator (5) via reinforcing bolts (41).

5. A construction elevator foundation according to claim 4, characterized in that: The mounting frame (4) comprises a bottom plate (46) and a support block (42); the concrete foundation (1) is provided with embedded bolts (43); the bottom plate (46) is fixedly connected to the upper end of the concrete foundation (1) via the embedded bolts (43); a plurality of support blocks (42) are provided on the upper end of the bottom plate (46); the plurality of support blocks (42) are fixedly connected to the bottom plate (46); and the foundation frame (51) is fixedly connected to the upper end of the support block (42).

6. A construction elevator foundation according to claim 5, characterized in that: A stepped through hole (44) with a larger upper portion and a smaller lower portion is provided in the middle of the support block (42) along the vertical direction, a nut (45) is provided in the large diameter hole of the stepped through hole (44), and the upper end of the embedded bolt (43) is threadedly connected to the nut (45); The top of the support block (42) is provided with a threaded hole, the basic frame (51) is provided with a through hole coaxial with the threaded hole, and the basic frame (51) is fixedly connected to the support block (42) via a reinforcing bolt (41).

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