Underwater combined foundation of tower crane

Abstract

The underwater combined foundation of the tower crane comprises bridge piers and a cofferdam, the bridge piers are arranged in the cofferdam, three second latticed columns are arranged on one side in the cofferdam, three first latticed columns are arranged on the outer side of the cofferdam and located at the bottom of the water surface, the three first latticed columns and the three second latticed columns are located at the three vertexes of an isosceles triangle respectively, and the three second latticed columns and the three first latticed columns are arranged in the cofferdam. The tops of the three first latticed columns and the tops of the three second latticed columns are located above the top of the cofferdam, the two first latticed columns and the two second latticed columns are symmetrically arranged along one side face of the cofferdam and connected with the two sides of the bottom of the tower crane foundation respectively, and a tower crane is arranged on the top of the tower crane foundation. Four constructional columns at the bottom of the tower crane are connected with the tower crane foundation in an anchoring manner; by designing the tower crane foundation to avoid the cofferdam, the operation environment that the piers are located at the high water level and limited by the space of the cofferdam is solved, the tower crane runs stably, safely and reliably, the cost is saved, and the progress is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane foundations, in particular to an underwater combined foundation for a tower crane. Background Art

[0002] Tower cranes are often required for underwater bridge construction. Among lifting equipment, tower cranes are widely used in various construction environments due to their large working range, large effective coverage area, greater than 360° rotation, high efficiency, and high lifting height. Tower cranes are divided into two types based on their mobility: traveling and fixed. Fixed tower cranes have a fixed, non-rotating tower body. On land, tower cranes are typically installed on a solid concrete foundation or a strip-shaped, X-shaped concrete foundation. However, when constructing over water, the construction of a tower crane foundation becomes particularly challenging. Generally, when bridge piers are located in the middle of a river channel, concrete caps or steel corbel caps are often used to support the tower crane. However, if the tower crane is positioned too far from the cap and cannot be directly connected to the pier cap, such as due to a cofferdam, direct concrete or steel corbel caps cannot be constructed, thus requiring improvement. Utility Model Content

[0003] The purpose of the utility model is to provide an underwater combined foundation for a tower crane to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A tower crane underwater composite foundation comprises a pier and a cofferdam, wherein the pier is arranged inside the cofferdam, three second lattice columns are arranged on one side of the inner part of the cofferdam, and three first lattice columns are arranged outside the cofferdam and at the bottom of the water surface, wherein the three first lattice columns and the second lattice columns are respectively located at the three vertices of an isosceles triangle, and the tops of the three first lattice columns and the second lattice columns are located above the top of the cofferdam, two of the first lattice columns and the second lattice columns are symmetrically arranged along one side of the cofferdam, and two of the first lattice columns and the second lattice columns are respectively connected to the two sides of the bottom of the tower crane foundation; a tower crane is arranged on the top of the tower crane foundation, and four structural columns at the bottom of the tower crane are anchored to the tower crane foundation.

[0006] Preferably, the bottom of the second lattice column is anchored to the cofferdam.

[0007] Preferably, a waterproof board is provided on the surface of the four structural columns at the bottom of the tower crane and above the tower crane foundation, and a first water-stop sleeve and a second water-stop sleeve are respectively sleeved on both ends of the surface of the four structural columns at the bottom of the tower crane, and the top and bottom of the first water-stop sleeve are respectively located at the bottom of the waterproof board and the top of the tower crane foundation.

[0008] Preferably, the first water-stopping sleeve and the second water-stopping sleeve are connected by fixing bolts.

[0009] Preferably, waterproof strips are provided at the top and bottom of the first water-stopping sleeve and the second water-stopping sleeve where they contact the bottom of the waterproof board and the tower crane foundation respectively.

[0010] Preferably, the three second lattice columns are connected by a plurality of first reinforcing rods.

[0011] Preferably, the tops of the three first lattice columns are connected by a plurality of second reinforcing rods.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides an underwater combined foundation for a tower crane. Three second lattice columns and a first lattice column are respectively made inside and outside the cofferdam to raise the tower crane foundation, avoid the cofferdam, solve the working environment where the bridge pier is located at a high water level and is restricted by the cofferdam space, and ensure the maximum utilization of the tower crane, so that the tower crane can operate stably, safely and reliably, save costs and speed up the progress.

[0014] The utility model relates to a tower crane underwater combined foundation, wherein a first water-stopping sleeve and a second water-stopping sleeve are sleeved and arranged at the connection between the tower crane and the tower crane foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the tower crane structure of the present utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0019] In the figure: 1. Bridge pier; 2. Tower crane foundation; 3. Cofferdam; 4. Tower crane; 5. First lattice column; 6. Second lattice column; 7. First reinforcement rod; 8. Second reinforcement rod; 9. Waterproof board; 10. First water-stop sleeve; 11. Second water-stop sleeve; 12. Fixing bolt; 13. Waterproof strip. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A tower crane underwater composite foundation includes a bridge pier 1 and a cofferdam 3, and is characterized in that: a bridge pier 1 is arranged inside the cofferdam 3, three second lattice columns 6 are arranged on one side of the interior of the cofferdam 3, and three first lattice columns 5 are arranged on the outside of the cofferdam 3 and at the bottom of the water surface. The three first lattice columns 5 and the second lattice columns 6 are respectively located at the three vertices of an isosceles triangle, and the tops of the three first lattice columns 5 and the second lattice columns 6 are located above the top of the cofferdam 3. Two first lattice columns 5 and the second lattice columns 6 are symmetrically arranged along one side of the cofferdam 3, and two first lattice columns 5 and the second lattice columns 6 are respectively connected to the two sides of the bottom of the tower crane foundation 2. A tower crane 4 is arranged on the top of the tower crane foundation 2, and four structural columns at the bottom of the tower crane 4 are anchored to the tower crane foundation 2.

[0025] Three second lattice columns 6 and three first lattice columns 5 are respectively made inside and outside the cofferdam 3 to elevate the tower crane foundation 2 and avoid the cofferdam 3, thereby facilitating the installation of the tower crane 4.

[0026] Furthermore, the bottom of the second lattice column 6 is anchored to the cofferdam 3 .

[0027] Specifically, the anchor connection is an existing connection method, which will not be described in detail here.

[0028] Furthermore, a waterproof board 9 is provided on the surface of the four structural columns at the bottom of the tower crane 4 and above the tower crane foundation 2. The first water-stop sleeve 10 and the second water-stop sleeve 11 are respectively sleeved at both ends of the surface of the four structural columns at the bottom of the tower crane 4. The top and bottom of the first water-stop sleeve 10 and the second water-stop sleeve 11 are respectively located at the bottom of the waterproof board 9 and the top of the tower crane foundation 2.

[0029] Furthermore, the first water-stopping sleeve 10 and the second water-stopping sleeve 11 are connected by fixing bolts 12 .

[0030] Furthermore, waterproof strips 13 are provided at the top and bottom of the first water-stopping sleeve 10 and the second water-stopping sleeve 11 at the places where they contact the bottom of the waterproof plate 9 and the tower crane foundation 2 respectively.

[0031] Specifically, the setting of the waterproof strip 13 can not only make the inner surfaces of the first water-stopping sleeve 10 and the second water-stopping sleeve 11 contact with the four structural columns at the bottom of the tower crane 4, thereby fixing the first water-stopping sleeve 10 and the second water-stopping sleeve 11, but also better realize the waterproofing of the connection between the tower crane 4 and the tower crane foundation 2.

[0032] Furthermore, the three second lattice columns 6 are connected by a plurality of first reinforcing rods 7 .

[0033] Furthermore, the tops of the three first lattice columns 5 are connected by a plurality of second reinforcing rods 8 .

[0034] Specifically, by providing the first reinforcing rod 7 and the second reinforcing rod 8 , the strength between the first lattice column 5 and the second lattice column 6 is increased, which is beneficial to supporting the tower crane foundation 2 .

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tower crane underwater combined foundation, comprising a pier (1) and a cofferdam (3), characterized in that: A bridge pier (1) is provided inside the cofferdam (3), three second lattice columns (6) are provided on one side of the inside of the cofferdam (3), three first lattice columns (5) are provided outside the cofferdam (3) and at the bottom of the water surface, the three first lattice columns (5) and the three second lattice columns (6) are respectively located at the three vertices of an isosceles triangle, the tops of the three first lattice columns (5) and the three second lattice columns (6) are located above the top of the cofferdam (3), two of the first lattice columns (5) and the second lattice columns (6) are symmetrically arranged along one side of the cofferdam (3), and two of the first lattice columns (5) and the second lattice columns (6) are respectively connected to the two sides of the bottom of the tower crane foundation (2); a tower crane (4) is provided on the top of the tower crane foundation (2), and four structural columns at the bottom of the tower crane (4) are anchored to the tower crane foundation (2).

2. The underwater combined foundation of a tower crane according to claim 1, characterized in that: The bottom of the second lattice column (6) is anchored to the cofferdam (3).

3. The underwater combined foundation of a tower crane according to claim 1, characterized in that: A waterproof plate (9) is provided on the surface of the four structural columns at the bottom of the tower crane (4) and located above the tower crane foundation (2); a first water-stopping sleeve (10) and a second water-stopping sleeve (11) are respectively sleeved at both ends of the surface of the four structural columns at the bottom of the tower crane (4); the top and bottom of the first water-stopping sleeve (10) and the second water-stopping sleeve (11) are respectively located at the bottom of the waterproof plate (9) and the top of the tower crane foundation (2).

4. The underwater combined foundation of a tower crane according to claim 3, characterized in that: The first water-stopping sleeve (10) and the second water-stopping sleeve (11) are connected via fixing bolts (12).

5. The underwater combined foundation of a tower crane according to claim 3, characterized in that: Waterproof strips (13) are provided at the top and bottom of the first water-stopping sleeve (10) and the second water-stopping sleeve (11), respectively, at the locations where they contact the bottom of the waterproof board (9) and the tower crane foundation (2).

6. The underwater combined foundation of a tower crane according to claim 1, characterized in that: The three second lattice columns (6) are connected via a plurality of first reinforcing rods (7).

7. The underwater combined foundation of a tower crane according to claim 1, characterized in that: The tops of the three first lattice columns (5) are connected via a plurality of second reinforcing rods (8).

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