Tower crane foundation and basement bottom plate integral cast-in-place structure

Abstract

The utility model discloses an integral cast-in-place structure of a tower crane foundation and a basement bottom plate, which comprises the tower crane foundation which is a raft foundation and is provided with tower crane foundation steel bars; the structural bottom plate is arranged outside the tower crane foundation in a surrounding mode, the structural bottom plate and the tower crane foundation are integrally formed in a pouring mode, the structural bottom plate is provided with structural bottom plate longitudinal bars, and one ends of the structural bottom plate longitudinal bars are anchored into the tower crane foundation and fixedly connected with the tower crane foundation steel bars. The structural bottom plate and the tower crane foundation are integrally poured and formed, so that the anti-floating pressure of the structural bottom plate in the construction period can be effectively reduced, the later leakage hidden danger is reduced, and the field civilized construction level is improved.

Description

Technical Field

[0001] The utility model relates to an integral cast-in-place structure of a tower crane foundation and a basement bottom plate, and belongs to the technical field of tower crane foundation construction. Background Art

[0002] With the continuous development of my country's construction industry, construction projects are constantly developing towards "high, deep and large", and more and more high-rise and super-high-rise buildings are being built in large numbers, including large basements. As an important vertical transportation tool, the tower crane must first be close to the upper structure to facilitate fixing with the upper structure. The traditional practice of the tower crane arm is to make the tower crane foundation lower than the structural bottom plate and pass through the basement structural plate. After the tower crane is dismantled in the later stage, the structural bottom plate of the part affected by the tower crane foundation and the basement structural plate affected by the tower body are cast. However, in the traditional practice, since the basement bottom plate can only be closed after the tower crane is dismantled, the bottom plate near the tower crane foundation is prone to become a weak point in anti-floating during construction, and the risk of leakage in the later stage is relatively high. Utility Model Content

[0003] Based on the above, the utility model provides an integral cast-in-place structure of a tower crane foundation and a basement floor slab to solve the problem that the floor slab near the traditional tower crane foundation easily becomes a weak point in anti-floating and has a high risk of leakage in the later stage.

[0004] The technical solution of the utility model is: a tower crane foundation and basement floor integral cast-in-place structure, including:

[0005] The tower crane foundation is a raft foundation with tower crane foundation reinforcement;

[0006] The structural bottom plate is arranged outside the tower crane foundation and is cast integrally with the tower crane foundation. The structural bottom plate has structural bottom plate longitudinal reinforcement. One end of the structural bottom plate longitudinal reinforcement is anchored into the tower crane foundation and fixedly connected to the tower crane foundation steel bars.

[0007] As a further improvement of the utility model, a tower crane foundation section is provided on the tower crane foundation, and the tower crane foundation section is connected to the tower crane foundation through embedded bolts.

[0008] As a further improvement of the present invention, the thickness of the tower crane foundation is greater than the thickness of the structural bottom plate, and the top of the tower crane foundation is higher than the top of the structural bottom.

[0009] As a further improvement of the utility model, a water-stop steel plate is fixedly connected to the periphery of the structural bottom plate.

[0010] As a further improvement of the present invention, the waterstop steel plates are connected to the steel bars of the structural bottom plate by spot welding, and full welding is used between two adjacent waterstop steel plates.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The utility model casts the structural bottom plate and the tower crane foundation as one piece, which can effectively reduce the anti-floating pressure of the structural bottom plate during construction, reduce the potential leakage risk in the later stage, and improve the level of civilized construction on site.

[0013] 2. The utility model makes full use of the tower crane raft foundation structure, which can reduce the amount of steel bars and concrete used in the structural bottom plate, save raw materials and improve economic benefits.

[0014] 3. The utility model is simple and easy to understand, the force is clear and definite, the on-site construction is easy, the construction is fast, and the construction efficiency can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the integral cast-in-place structure of the tower crane foundation and the structural bottom plate;

[0016] Figure 2 It is the plan view of the integral cast-in-place structure of the tower crane foundation and the structural bottom plate;

[0017] Description of reference numerals:

[0018] 1 tower crane foundation, 2 tower crane foundation steel bars, 3 structural bottom plate, 4 structural bottom plate steel bars, 5 waterstop steel plate, 6 tower crane foundation section. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0020] See also Figure 1 and Figure 2 In this embodiment, a tower crane foundation and a basement floor slab integrally cast-in-place structure includes a tower crane foundation 1 and a structural floor slab 3 .

[0021] The tower crane foundation 1 is a raft foundation, which is thicker than the structural bottom plate 3. It has a tower crane foundation steel bar 2. The tower crane foundation steel bar 2 is generally arranged in a double-layer bidirectional manner and is larger than the structural bottom plate steel bar 4. The bearing capacity of the tower crane foundation steel bar 2 can be fully utilized and the amount of the structural bottom plate steel bar 4 can be saved. A tower crane foundation section 6 is installed on the tower crane foundation 1, and the tower crane foundation section 6 is connected to the tower crane foundation 1 through embedded bolts. The structural bottom plate 3 is surrounded outside the tower crane foundation 1 and cast and formed integrally with the tower crane foundation 1. The structural bottom plate 3 has a structural bottom plate 3 longitudinal reinforcement. One end of these structural bottom plate 3 longitudinal reinforcements is anchored into the tower crane foundation 1 and fixedly connected to the tower crane foundation steel bar 2. The structural bottom plate steel bar 4 is generally arranged in a double-layer bidirectional manner. During construction, the concrete strength of the tower crane foundation 1 and the structural bottom plate 3 is implemented according to the principle of height. The top of the tower crane foundation 1 is about 20 mm higher than the top of the structural bottom plate 3, which is convenient for drainage treatment on the tower crane foundation 1.

[0022] In order to avoid water leakage, a water-stop steel plate 5 is fixed to the periphery of the structural bottom plate 3. It is arranged on site along the structural bottom plate 3 between the upper and lower layers of the structural bottom plate steel bars 4. The water-stop steel plate 5 is connected to the steel bars of the structural bottom plate 3 by spot welding, and the joints between two adjacent water-stop steel plates 5 are fully welded. The water-stop steel plate 5 meets the requirements of bearing capacity and stability, and its overlap is fully welded, and the weld meets the requirements.

[0023] The width of the structural bottom plate 3 is set at a position with smaller shear force according to the requirements of the specifications. The longitudinal reinforcement of the structural bottom plate 3 is anchored into the tower crane foundation 1 according to the requirements of the specifications. Water-stop steel plates 5 are set at the construction joints around the first cast parts of the structural bottom plate 3 and the tower crane foundation 1, and anti-leakage work is done.

[0024] The construction method of the above-mentioned integral cast-in-place structure of the tower crane foundation and the basement floor is as follows:

[0025] First, tie up the steel bars of the tower crane raft foundation, and then pass the structural bottom plate steel bars 4 into the tower crane foundation 1 according to the design requirements, fix the waterstop steel plate 5, and take sealing measures. The structural bottom plate 3 around the tower crane foundation 1 is cast as a whole together with the tower crane foundation 1. When the structural bottom plate 3 is constructed, the structural bottom plate 3 can be directly closed at one time, avoiding the anti-floating and civilized construction problems around the tower crane foundation 1 during construction.

[0026] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A tower crane foundation and basement floor integral cast-in-place structure, It is characterized in that include: The tower crane foundation (1) is a raft foundation and has tower crane foundation steel bars (2); The structural base plate (3) is arranged outside the tower crane foundation (1) and is integrally cast with the tower crane foundation (1). The structural base plate (3) has a structural base plate (3) longitudinal reinforcement. One end of the structural base plate (3) longitudinal reinforcement is anchored into the tower crane foundation (1) and is fixedly connected to the tower crane foundation reinforcement (2).

2. The integral cast-in-place structure of the tower crane foundation and the basement floor according to claim 1, It is characterized in that A tower crane foundation section (6) is provided on the tower crane foundation (1), and the tower crane foundation section (6) is connected to the tower crane foundation (1) via embedded bolts.

3. The integral cast-in-place structure of the tower crane foundation and the basement floor according to claim 1, It is characterized in that The thickness of the tower crane foundation (1) is greater than the thickness of the structural base plate (3), and the top of the tower crane foundation (1) is higher than the top of the structural bottom.

4. The integral cast-in-place structure of the tower crane foundation and the basement floor according to claim 1, It is characterized in that A water-stop steel plate (5) is fixedly connected to the periphery of the structural bottom plate (3).

5. The integral cast-in-place structure of the tower crane foundation and the basement floor according to claim 4, It is characterized in that The waterstop steel plates (5) are connected to the steel bars of the structural bottom plate (3) by spot welding, and full welding is used between two adjacent waterstop steel plates (5).

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