Crack prevention device for large-volume concrete foundation of converter station

Abstract

The utility model provides a converter station concrete mass foundation crack prevention device relates to the electric power civil engineering technical field, include: mass foundation, the mass foundation top is equipped with the pile foundation, and the mass foundation is equipped with the foundation main muscle inside, and the foundation main muscle is divided into longitudinal reinforcement and cross muscle, and the longitudinal reinforcement and cross muscle cross distribution, and the pile foundation is equipped with the vertical muscle inside, and the vertical muscle below inserts into the mass foundation inside, and the vertical muscle of pile foundation inside is provided with the inside stirrup, the utility model not only can through the stirrup tight hoop, prevent because the external temperature change and other factors lead to the pile foundation cracking, still can through the cooling water flow in the mass foundation inside and take away the mass foundation internal heat, prevent the mass foundation because the internal overheating leads to the cracking, solved the prior art cannot prevent the problem that the concrete cracks because of the mass internal foundation heating.

Description

Technical Field

[0001] This utility model belongs to the field of power civil engineering technology, and more specifically, it relates to a device for preventing cracks in the large-volume concrete foundation of converter stations. Background Technology

[0002] When constructing a large-volume concrete foundation for a converter station, crack prevention is crucial. Cracks alter the stress distribution in concrete, causing stress concentration, which gradually expands under load and may eventually lead to structural failure. Cracks also provide pathways for harmful substances such as rainwater and chemicals to penetrate, accelerating steel corrosion and concrete carbonation, thus shortening structural durability. Most existing methods for preventing cracks, besides using low-heat cement, adding admixtures, and layered pouring, also involve adding internal steel reinforcement. However, these measures cannot prevent concrete cracking caused by the heating of the large-volume internal foundation. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a device for preventing cracks in the large-volume concrete foundation of converter stations, thereby solving the problem that existing technologies cannot prevent concrete cracking caused by the heating of the large-volume internal foundation.

[0004] This utility model of a crack prevention device for large-volume concrete foundations in converter stations is achieved through the following specific technical means: A crack prevention device for a large-volume concrete foundation of a converter station includes: a large-volume foundation; a pile foundation is provided above the large-volume foundation; the main reinforcement bars are provided inside the large-volume foundation, and the main reinforcement bars are divided into longitudinal bars and transverse bars, which are distributed in a cross pattern; vertical bars are provided inside the pile foundation, and the vertical bars are inserted into the large-volume foundation below; internal stirrups are provided on the vertical bars inside the pile foundation.

[0005] Furthermore, the large-volume foundation is provided with large foundation stirrups on the upper and side surfaces, and the large foundation stirrups are divided into longitudinal stirrups and transverse stirrups.

[0006] Furthermore, the transverse stirrups are set at the front and rear ends of the large-volume foundation, and the longitudinal stirrups are set at the left and right ends of the large-volume foundation. The longitudinal stirrups and the transverse stirrups are connected at their intersections.

[0007] Furthermore, the pile foundation is provided with external stirrups, which surround the side surface of the pile foundation and are fitted onto the outside of the pile foundation.

[0008] Furthermore, the large-volume foundation is equipped with cooling pipes inside, which are located in the gaps of the main reinforcement bars of the foundation. The cooling pipes extend out of the large-volume foundation on the right rear side as water inlets and on the left rear side as water outlets.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses large foundation stirrups to tighten all four sides of the large-volume foundation, preventing cracking caused by temperature changes and other factors, thus protecting the integrity of the large-volume foundation and affecting the safety performance of the building.

[0010] 2. This utility model uses external stirrups to tighten the pile foundation, preventing it from cracking due to temperature changes and other factors, which would damage its load-bearing capacity and affect the safety of the building.

[0011] 3. This utility model prevents the large-volume foundation from cracking due to internal overheating by setting up cooling pipes and pre-embedding cooling pipes inside the foundation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the rear view structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the main frame structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of this utility model.

[0016] Figure 5 This is a schematic diagram of the cross-sectional structure of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Large-volume foundation; 2. Pile foundation; 3. Main reinforcement bars of the foundation; 4. Cooling pipes; 5. Water inlet; 6. Water outlet; 7. Stirrups in the main foundation; 8. External stirrups; 9. Vertical reinforcement; 10. Internal stirrups. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] Example: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides a crack prevention device for the concrete large-volume foundation of a converter station, including: a large-volume foundation 1; a pile foundation 2 is provided above the large-volume foundation 1, and the main reinforcement 3 is provided inside the large-volume foundation 1. The main reinforcement 3 is divided into longitudinal reinforcement and transverse reinforcement, which are distributed in a cross pattern. The pile foundation 2 is provided inside the pile foundation 2 with vertical reinforcement 9 inserted into the large-volume foundation 1 below. Internal stirrups 10 are provided on the vertical reinforcement 9 inside the pile foundation 2.

[0020] Among them, such as Figure 2 As shown, the large-volume foundation 1 is provided with large-volume foundation stirrups 7 on the upper and side surfaces. The large-volume foundation stirrups 7 are divided into longitudinal stirrups and transverse stirrups. The transverse stirrups are set at the front and rear ends of the large-volume foundation 1, and the longitudinal stirrups are set at the left and right ends of the large-volume foundation 1. The longitudinal stirrups and transverse stirrups are connected at the intersection to tighten all four sides of the large-volume foundation 1, so as to prevent the large-volume foundation 1 from cracking due to temperature changes and other factors, thereby compromising the integrity of the large-volume foundation 1 and affecting the safety performance of the building.

[0021] Among them, such as Figure 4 As shown, the pile foundation 2 is provided with external stirrups 8. The external stirrups 8 surround the side surface of the pile foundation 2 and are fitted on the outside of the pile foundation 2. The external stirrups 8 are used to tighten the outside of the pile foundation 2 to prevent it from cracking due to temperature changes and other factors, which would damage its load-bearing capacity and affect the safety of the building.

[0022] Among them, such as Figures 3 to 5 As shown, a cooling pipe 4 is installed inside the large-volume foundation 1. The cooling pipe 4 is located in the gap of the main reinforcement 3 of the foundation. The cooling pipe 4 extends out of the large-volume foundation 1 from the right rear side as a water inlet 5 and from the left rear side as a water outlet 6. By pre-embedding the cooling pipe 4 inside the large-volume foundation 1, the circulating water of the cooling pipe 4 can carry away the internal heat of the large-volume foundation 1, preventing the large-volume foundation 1 from cracking due to internal overheating.

[0023] The specific usage and function of this embodiment are as follows: In this utility model, before pouring the large-volume foundation 1, cooling pipes 4 are pre-embedded in the gaps between the main reinforcement bars 3. After the large-volume foundation 1 is poured, large-volume foundation stirrups 7 are set on the upper and side surfaces of the large-volume foundation 1 to tighten all four sides of the large-volume foundation 1. External stirrups 8 are used to tighten the pile foundation 2 to prevent the pile foundation 2 from cracking due to temperature changes and other factors. The inlet pipe 5 is connected to external cooling water, and the outlet pipe 6 is connected to external drainage pipe. The cooling water flows inside the large-volume foundation 1 to remove the heat inside the large-volume foundation 1, preventing the large-volume foundation 1 from cracking due to internal overheating.

[0024] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. Converter station concrete mass foundation crack prevention device, comprising: Large volume foundation (1); characterized in that: a pile foundation (2) is provided above the large volume foundation (1), and a main foundation reinforcement (3) is provided inside the large volume foundation (1). The main foundation reinforcement (3) is divided into longitudinal reinforcement and transverse reinforcement, and the longitudinal reinforcement and transverse reinforcement are distributed in a cross pattern. A vertical reinforcement (9) is provided inside the pile foundation (2), and the vertical reinforcement (9) is inserted into the large volume foundation (1) below. An internal stirrup (10) is provided on the vertical reinforcement (9) inside the pile foundation (2).

2. The converter station mass concrete foundation crack prevention apparatus according to claim 1, characterized in that: The large-volume foundation (1) is provided with large foundation stirrups (7) on the upper and side surfaces. The large foundation stirrups (7) are divided into longitudinal stirrups and transverse stirrups.

3. The converter station mass concrete foundation crack prevention apparatus of claim 2, wherein: The transverse stirrups are set at the front and rear ends of the large volume foundation (1), and the longitudinal stirrups are set at the left and right ends of the large volume foundation (1). The longitudinal stirrups and the transverse stirrups are connected at the intersection.

4. The converter station mass concrete foundation crack prevention apparatus of claim 1, wherein: The pile foundation (2) is provided with external stirrups (8), which surround the side surface of the pile foundation (2) and are fitted on the outside of the pile foundation (2).

5. The converter station mass concrete foundation crack prevention apparatus of claim 1, wherein: The large-volume foundation (1) is equipped with a cooling pipe (4). The cooling pipe (4) is located in the gap of the main reinforcement (3) of the foundation. The cooling pipe (4) extends out of the large-volume foundation (1) on the right rear side as a water inlet (5) and the cooling pipe (4) extends out of the large-volume foundation (1) on the left rear side as a water outlet (6).

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