Tower crane foundation structure combined with foundation raft

Abstract

The utility model relates to the technical field of tower crane foundations, in particular to a tower crane foundation structure combined with a foundation raft, which comprises an original foundation raft, a tower crane foundation, an anti-floating anchor rod, raft reinforcing steel bars and tower crane foundation reinforcing steel bars, the tower crane foundation is arranged in the original foundation raft, the top surface of the tower crane foundation is flush with the top surface of the original foundation raft, and the anti-floating anchor rod is arranged in the original foundation raft. The thickness of the tower crane foundation is larger than that of the original foundation raft, and the multiple anti-floating anchor rods are arranged on the periphery of the tower crane foundation. Raft reinforcing steel bars are arranged in the original foundation raft, tower crane foundation reinforcing steel bars are arranged in the tower crane foundation, and the raft reinforcing steel bars are anchored into the tower crane foundation reinforcing steel bars; an embedded leg used for installing a tower crane is further embedded in the tower crane foundation, and the embedded leg extends out of the top face of the tower crane foundation. The problem that a great water leakage hidden danger exists in a traditional tower crane foundation method is solved.

Description

Technical Field

[0001] The present application relates to the field of tower crane foundation construction, and in particular to a tower crane foundation structure combined with a foundation raft slab. Background Art

[0002] Tower cranes are common lifting equipment on construction sites. They are mainly used to lift construction materials such as steel bars, wooden planks, scaffolding pipes, etc. They are indispensable equipment on construction sites.

[0003] In some projects, the depth of the water-stop curtain of the foundation pit is relatively shallow, for example, it is only 500mm to the bottom of the raft slab. Therefore, if the traditional tower crane foundation method is adopted, the tower crane foundation is set under the foundation raft slab, and the standard tower crane foundation is configured according to the tower crane model, and then the tower crane embedded section is set, the tower crane foundation position will become a deep well for collecting groundwater, causing construction difficulties, and there is also a great risk of leakage in the waterproof construction at the independent foundation.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there is a great risk of water leakage in the traditional tower crane foundation method. Utility Model Content

[0005] In order to improve the problem of great potential for water leakage in traditional tower crane foundation practices, the present application provides a tower crane foundation structure combined with a foundation raft.

[0006] The present application provides a tower crane foundation structure combined with a foundation raft, which adopts the following technical solution:

[0007] A tower crane foundation structure combined with a foundation raft comprises an original foundation raft, a tower crane foundation, anti-floating anchor rods, raft reinforcement bars and tower crane foundation reinforcement bars, wherein the tower crane foundation is arranged in the raft, the top surface of the tower crane foundation is flush with the top surface of the original foundation raft, and the thickness of the tower crane foundation is greater than the thickness of the original foundation raft, and a plurality of anti-floating anchor rods are arranged around the tower crane foundation; raft reinforcement bars are arranged inside the original foundation raft, tower crane foundation reinforcement bars are arranged inside the tower crane foundation, and the raft reinforcement bars are anchored into the tower crane foundation reinforcement bars; embedded legs for installing a tower crane are also embedded in the tower crane foundation, and the embedded legs extend out of the top surface of the tower crane foundation.

[0008] By adopting the above technical scheme, the tower crane foundation is set in the original foundation raft, and the top surface of the tower crane foundation is made flush with the top surface of the original foundation raft. Compared with the traditional form in which the tower crane foundation is set below the original foundation raft, the elevation of the tower crane foundation is increased, which avoids the position of the tower crane foundation becoming a deep well for collecting groundwater, and improves the problem of water leakage in the traditional tower crane foundation. In addition, after the elevation of the tower crane foundation is increased, embedded legs can be used instead of embedded joints, which saves costs and improves construction efficiency.

[0009] Optionally, the raft slab reinforcement includes upper iron bars and lower iron bars, both of which are bidirectional steel meshes, the upper iron bars are arranged throughout, the lower iron bars are disconnected at the tower crane foundation position, and the ends of the lower iron bars are anchored in the tower crane foundation.

[0010] By adopting the above technical solution, the lower iron steel bars are anchored into the tower crane foundation, so that the tower crane foundation and the original foundation raft can be combined into a whole, making the combination of the tower crane foundation and the original foundation raft more firm and improving the stability of the tower crane foundation.

[0011] Optionally, the raft slab reinforcement further includes additional reinforcement, the additional reinforcement is located at the tower crane foundation, and the additional reinforcement is located at the lower layer of the upper iron reinforcement.

[0012] By adopting the above technical solution, the additional steel bars improve the strength of the tower crane foundation position, improve the shear resistance of the tower crane foundation, and thus improve the bearing capacity of the tower crane foundation.

[0013] Optionally, the tower crane foundation reinforcement includes transverse reinforcement and longitudinal reinforcement, the transverse reinforcement and the longitudinal reinforcement are cross-arranged to form a grid structure reinforcement, and the transverse reinforcement and the longitudinal reinforcement are located at the bottom of the tower crane foundation.

[0014] Optionally, the tower crane foundation reinforcement further includes vertical reinforcement, the vertical reinforcement is arranged at both ends of the transverse reinforcement, and the vertical reinforcement and the transverse reinforcement are an integrally bent U-shaped reinforcement structure.

[0015] Optionally, the vertical reinforcement is anchored into the original foundation raft slab.

[0016] By adopting the above technical solution, the integrity of the tower crane foundation and the original foundation raft is improved.

[0017] Optionally, a tower base anti-floating anchor rod is also anchored in the tower crane foundation, and the tower base anti-floating anchor rod is fixedly connected to the embedded leg.

[0018] By adopting the above technical solution, the anti-floating ability of the tower crane foundation is further improved, and the anti-floating anchor rod can play a role in positioning and fixing the installation of the embedded legs.

[0019] Optionally, a waterstop steel plate is provided at the connection between the original foundation raft slab and the tower crane foundation, and the water-facing surface of the waterstop steel plate faces the bottom surface of the original foundation raft slab.

[0020] By adopting the above technical solution, the waterstop steel plate plays a waterstop role for groundwater, preventing groundwater from seeping into the tower crane foundation and the original foundation raft.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The tower crane foundation is set inside the original foundation raft, and the top surface of the tower crane foundation is flush with the top surface of the original foundation raft. Compared with the traditional tower crane foundation being set below the original foundation raft, the elevation of the tower crane foundation is increased, and the tower crane foundation position is prevented from becoming a deep well for collecting groundwater, thus improving the leakage problem of the traditional tower crane foundation. In addition, after the elevation of the tower crane foundation is increased, embedded legs can be used instead of embedded joints, which saves costs and improves construction efficiency.

[0023] 2. Improve the anti-floating ability of the tower crane foundation, and the anti-floating anchor rod can play a role in positioning and fixing the installation of the embedded legs;

[0024] 3. The water-stop steel plate stops groundwater and prevents it from seeping into the tower crane foundation and the original foundation raft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure in an embodiment of the present application.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. Original foundation raft; 11. Raft reinforcement; 111. Upper iron reinforcement; 112. Lower iron reinforcement; 2. Tower crane foundation; 21. Tower crane foundation reinforcement; 211. Horizontal reinforcement; 212. Longitudinal reinforcement; 213. Vertical reinforcement; 3. Additional reinforcement; 4. Waterstop steel plate; 5. Anti-floating anchor rod; 51. Tower base anti-floating anchor rod; 6. Embedded leg. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 This application is described in further detail.

[0028] The present application embodiment discloses a tower crane foundation structure combined with a foundation raft. Figure 1 A tower crane foundation structure combined with a foundation raft comprises an original foundation raft 1, a tower crane foundation 2, an anti-floating anchor rod 5 and an embedded leg 6.

[0029] The original foundation raft 1 is a raft slab of a building basement. Raft slab steel bars 11 are arranged in the original foundation raft 1. After the raft slab steel bars 11 are tied, concrete is poured to form the original foundation raft 1. The raft slab steel bars 11 include upper iron bars 111 and lower iron bars 112. Both the upper iron bars 111 and the lower iron bars 112 are bidirectional steel meshes. The upper iron bars 111 are arranged throughout the entire raft. The lower iron bars 112 are disconnected at the tower crane foundation 2 position, and the lower iron bars 112 are anchored into the tower crane foundation 2 position.

[0030] The tower crane foundation 2 is arranged in the original foundation raft 1, and the upper surface of the tower crane foundation 2 is flush with the upper surface of the original foundation raft 1, and the thickness of the tower crane foundation 2 is greater than the thickness of the original foundation raft 1. A tower crane foundation steel bar 21 is arranged in the tower crane foundation 2, and the tower crane foundation steel bar 21 includes a transverse steel bar 211, a longitudinal steel bar 212 and a vertical steel bar 213. The transverse steel bar 211 and the longitudinal steel bar 212 are arranged crosswise to form a steel mesh, and the transverse steel bar 211 and the longitudinal steel bar 212 are arranged at the bottom of the tower crane foundation 2, and the vertical steel bar 213 is arranged at both ends of the transverse steel bar 211, and the vertical steel bar 213 and the transverse steel bar 211 are integrally bent to form a U-shaped steel bar, and the longitudinal steel bar 212 is also tied to the vertical steel bar 213 to form a complete tower crane foundation steel bar 21.

[0031] Furthermore, additional steel bars 3 are provided in the lower layer of the upper iron steel bars 111 . The additional steel bars 3 are located at the top of the tower crane foundation 2 . The additional steel bars 3 are also bidirectional steel meshes. The additional steel bars 3 can enhance the structural strength of the tower crane foundation 2 and improve the bearing capacity of the tower crane foundation 2 .

[0032] The construction joints at the junction of the tower crane foundation 2 and the original foundation raft 1 are left at a position 500mm outside the edge of the tower crane foundation 2. A waterstop steel plate 4 is installed at the construction joint. The water-facing surface of the waterstop steel plate 4 is arranged toward the bottom of the raft, which has a water-stopping effect on groundwater.

[0033] A plurality of anti-floating anchor rods 5 are arranged around the tower crane foundation 2 and anchored into the original foundation raft 1. The anti-floating anchor rods 5 are waterproofed in the conventional waterproof structure of the anti-floating anchor rods 5 and will not be described in detail.

[0034] The embedded legs 6 are embedded in the tower crane foundation 2. Four embedded legs 6 are arranged in a rectangular array. The embedded legs 6 are used to install the tower crane standard section. Since the top surface of the tower crane foundation 2 is flush with the top surface of the original foundation raft 1, there is no need to use the traditional tower crane embedded section, so as to increase the height of the tower crane standard section connection point. The embedded legs 6 can be used instead of the embedded section, which saves costs and improves construction efficiency.

[0035] Furthermore, a tower base anti-floating anchor rod 51 is anchored inside the tower crane foundation 2, and the tower base anti-floating anchor rod 51 is fixedly connected to the embedded leg 6. On the one hand, it plays a role in positioning and fixing support for the installation of the embedded leg 6, and on the other hand, it strengthens the anti-floating ability of the tower crane foundation 2, thereby further improving the anti-floating ability of the tower crane foundation 2 and the original foundation raft 1.

[0036] The implementation principle of a tower crane foundation structure combined with a foundation raft in an embodiment of the present application is: the tower crane foundation 2 is set in the original foundation raft 1, so that the top surface of the tower crane foundation 2 is flush with the top surface of the original foundation raft 1. Compared with the traditional tower crane foundation 2 set below the raft, the elevation of the tower crane foundation 2 is increased, and the position of the tower crane foundation 2 is prevented from becoming a deep well for collecting groundwater, which improves the problem of great potential leakage in the traditional tower crane foundation 2.

[0037] 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 tower crane foundation structure combined with a foundation raft, characterized in that: The invention comprises an original foundation raft (1), a tower crane foundation (2), an anti-floating anchor rod (5), a raft reinforcement bar (11) and a tower crane foundation reinforcement bar (21); the tower crane foundation (2) is arranged in the original foundation raft (1); the top surface of the tower crane foundation (2) is flush with the top surface of the original foundation raft (1); the thickness of the tower crane foundation (2) is greater than the thickness of the original foundation raft (1); a plurality of anti-floating anchor rods (5) are arranged around the tower crane foundation (2); raft reinforcement bars (11) are arranged inside the original foundation raft (1); tower crane foundation reinforcement bars (21) are arranged inside the tower crane foundation (2); the raft reinforcement bars (11) are anchored into the tower crane foundation reinforcement bars (21); and embedded legs (6) for installing a tower crane are also embedded in the tower crane foundation (2); the embedded legs (6) extend out of the top surface of the tower crane foundation (2).

2. A tower crane foundation structure combined with a foundation raft according to claim 1, characterized in that: The raft slab reinforcement (11) comprises an upper reinforcement (111) and a lower reinforcement (112), wherein the upper reinforcement (111) and the lower reinforcement (112) are both bidirectional reinforcement meshes, the upper reinforcement (111) is arranged throughout the entire length, the lower reinforcement (112) is disconnected at the tower crane foundation (2), and the end of the lower reinforcement (112) is anchored in the tower crane foundation (2).

3. A tower crane foundation structure combined with a foundation raft according to claim 2, characterized in that: The raft slab reinforcement (11) further comprises additional reinforcement (3), wherein the additional reinforcement (3) is located at the tower crane foundation (2), and the additional reinforcement (3) is located at the lower layer of the upper iron reinforcement (111).

4. The tower crane foundation structure combined with the foundation raft according to claim 1, characterized in that: The tower crane foundation steel bars (21) include transverse bars (211) and longitudinal bars (212), the transverse bars (211) and the longitudinal bars (212) being cross-arranged to form a grid structure steel bar, and the transverse bars (211) and the longitudinal bars (212) are located at the bottom of the tower crane foundation (2).

5. A tower crane foundation structure combined with a foundation raft according to claim 4, characterized in that: The tower crane foundation steel bar (21) further comprises vertical bars (213), wherein the vertical bars (213) are arranged at both ends of the transverse bars (211), and the vertical bars (213) and the transverse bars (211) are an integrally bent U-shaped steel bar structure.

6. A tower crane foundation structure combined with a foundation raft according to claim 5, characterized in that: The vertical reinforcement (213) is anchored into the original foundation raft (1).

7. The tower crane foundation structure combined with the foundation raft according to claim 1, characterized in that: A tower base anti-floating anchor rod (51) is also anchored in the tower crane foundation (2), and the tower base anti-floating anchor rod (51) is fixedly connected to the embedded leg (6).

8. The tower crane foundation structure combined with the foundation raft according to claim 1, characterized in that: A water-stop steel plate (4) is provided at the connection between the original foundation raft (1) and the tower crane foundation (2), and the water-facing surface of the water-stop steel plate (4) faces the bottom surface of the original foundation raft (1).

Images