CN209779452U - Pier shaft bulky concrete control by temperature change construction equipment - Google Patents
Pier shaft bulky concrete control by temperature change construction equipment Download PDFInfo
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- CN209779452U CN209779452U CN201822171428.9U CN201822171428U CN209779452U CN 209779452 U CN209779452 U CN 209779452U CN 201822171428 U CN201822171428 U CN 201822171428U CN 209779452 U CN209779452 U CN 209779452U
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- water supply
- pier
- pier shaft
- branch pipe
- trunk line
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Abstract
the utility model belongs to the technical field of the great high mound bridge engineering construction of wall thickness, it is high in order to solve the hollow mound bulky concrete hydration heat of thick wall, cause pier shaft crack, influence pier quality scheduling problem, a pier shaft bulky concrete control by temperature change construction equipment is provided, including water supply pump station and cooling bath, water supply trunk line and a plurality of confession drainage branch pipe, pier shaft bottom is equipped with the preformed hole, water supply trunk line passes the preformed hole, water supply pump station and cooling bath are connected to water supply trunk line one end, water supply drainage branch pipe is by supreme equipartition setting down and be connected with water supply trunk line respectively, be equipped with apopore and inlet opening in the pier shaft of confession drainage branch pipe correspondence height, supply drainage branch pipe and apopore and inlet opening head and the tail cyclic connection, the quality of high mound thick wall pier shaft work progress has been guaranteed, construction safety has been guaranteed, the efficiency.
Description
Technical Field
The utility model belongs to the technical field of the great high mound bridge engineering construction of wall thickness, concretely relates to pier shaft bulky concrete control by temperature change construction equipment.
Background
With the rapid development of infrastructure facilities such as high-speed railways, expressways, urban interchange roads and the like, structural bridges such as large-span overpasses and river crossings and the like continuously appear, the height of a pier continuously increases, hollow piers are widely adopted, special structural beams continuously appear, the wall thickness of a thin-wall hollow pier continuously increases, concrete pouring and curing are required to be maintained and controlled according to large-volume concrete when the thickness is larger than 1m, but the existing construction technology has no mature control method for the bridge, multiple temperature shrinkage crack diseases such as bridge pier cracks and the like are frequently generated, the quality of the bridge is seriously influenced, and in order to ensure the construction quality of the pier, a temperature control construction device for large-volume concrete of a pier body is provided, so that the heat generated by hydration of the large-volume concrete is reduced, and the construction.
Disclosure of Invention
The utility model discloses a it is high to solve hollow mound bulky concrete hydration heat of thick wall, causes disease scheduling problem such as pier shaft crack, researches a pier shaft bulky concrete temperature control construction equipment, reduces bulky concrete hydration and produces the heat, guarantees pier construction quality.
The utility model adopts the following technical scheme:
The utility model provides a pier shaft bulky concrete temperature control construction equipment which characterized in that is through setting up concrete temperature control device in hollow pier shaft, realizes real-time cooling to the different height layers of pier shaft.
Concrete temperature control device includes water supply pump station and cooling bath, water supply trunk line and a plurality of confession drainage branch pipe, and pier shaft bottom is equipped with the preformed hole, and water supply trunk line passes the preformed hole, and water supply pump station and cooling bath are connected to water supply trunk line one end, and water supply drainage branch pipe is connected with water supply trunk line respectively by supreme equipartition setting down, supplies drainage branch pipe to correspond to be equipped with apopore and inlet opening in the pier shaft of height, supplies drainage branch pipe and apopore and inlet opening end to end cyclic connection.
The water supply and drainage branch pipe is arranged at the bottom of the pier body by more than 20cm, and the apertures of the water inlet hole and the water drainage hole reserved on the pier body are not less than 5 cm.
the distance between the water inlet hole and the water discharging hole is not less than 80 cm.
The main water supply pipeline is formed by connecting a plurality of sections of steel pipes through threads, and at least one fixed point is arranged between each section of steel pipe and the pier body.
the utility model discloses an at pier shaft reinforcement equidistant arrangement cooling tube in-process, the later stage adopts water pump supply cooling water, reduces the heat that concrete hydration produced, avoids the inside high temperature of concrete to cause the various diseases of concrete, and this construction method has overcome conventional construction method and has been difficult to guarantee bridge pier construction quality scheduling problem, has guaranteed the quality of high mound thick wall pier shaft work progress, has guaranteed construction safety, improves the efficiency of construction.
Drawings
FIG. 1 is a construction flow chart of hollow piers constructed by turning over a mold;
FIG. 2 is a plan view of a cooling tube;
FIG. 3 is a diagram of a water supply system;
Fig. 4 is a side view of the water supply and drainage pipe.
In the figure: 2-branch water supply and drainage pipes, 3-main water supply pipe, 4-preformed hole, 5-water supply pump station and cooling pool.
Detailed Description
Pier shaft bulky concrete temperature control construction equipment is through setting up concrete temperature control device in the pier shaft, realizes real-time cooling to the not co-altitude layer of pier shaft.
The specific construction process of the temperature control device is as follows:
1) when the pier body is turned over, a 80cm layer of cooling pipes is arranged in the reinforcing steel bar binding process, the cooling pipes are made of steel pipes with the wall thickness of 2mm and the diameter of 35mm, and when the thickness of one side of the pier body is larger than 1m, the cooling pipes need to be arranged; the distance between the cooling pipe and the outer surface of the concrete of the pier body is controlled to be not less than 40cm, the water inlet and the water outlet of the cooling pipe are sealed by a sealing film after the installation is finished, and the water inlet and the water outlet are tightly propped against the inner mold of the pier body after the installation is ensured;
2) Reserving a water supply and drainage hole with the aperture of 5cm at the position of more than 20cm at the bottom of the hollow pier, wherein the distance between a water supply pipe pore passage and a drainage pipeline pore is preferably 1 m; reserving a water supply and drainage reserved hole by adopting a 5cm PVC pipe, mounting a bottom-section water supply and drainage pipe and a water pump after removing a mold, mounting a vertical bottom-section water supply and drainage pipe, connecting two layers of cooling pipes at the bottom by using a water supply and drainage branch pipe, and supplying water to realize the cooling treatment of the concrete;
3) The water supply and drainage pipeline is made of steel pipes with the diameter of 5cm, cooling pipe water supply and drainage branch pipes are arranged at intervals of 80cm on the steel pipes, the length of each section of the main pipeline is 1.5m, the main pipeline is connected by threads, the pipelines are fixedly reinforced every 1m, and the inner side wall of the hollow pier is fixedly reinforced by expansion bolts; according to the pouring height of the concrete, connecting branch pipes after removing the formwork, realizing the real-time work of each layer of cooling pipes and ensuring the temperature of the concrete to be controlled;
4) The water supply pump station is arranged on the outer side of the bottom of the pier, the cooling pool is collected in the drainage mode, the water supply pressure is guaranteed, the circulating water requirement of each layer of cooling pipes is met, and the cooling pool is collected in the drainage mode to achieve return water collection and cooling.
The method of the utility model is directed at the hollow pier, and the construction flow of the hollow pier when the rollover construction is adopted is shown in figure 1.
Claims (4)
1. The utility model provides a pier shaft bulky concrete control by temperature change construction equipment, a serial communication port, including water supply pump station and cooling bath, water supply trunk line and a plurality of water supply and drainage branch pipe, the pier shaft bottom is equipped with the preformed hole, water supply trunk line passes the preformed hole, water supply pump station and cooling bath are connected to water supply trunk line one end, water supply and drainage branch pipe is by supreme equipartition setting down and be connected with water supply trunk line respectively, water supply and drainage branch pipe corresponds and is equipped with apopore and inlet opening in the pier shaft of height, water supply and drainage branch pipe and apopore and inlet opening end to end cyclic connection.
2. The temperature-controlled construction device for the large-volume concrete of the pier body according to claim 1, wherein the water supply and drainage branch pipes are arranged above 20cm of the bottom of the pier body, and the diameters of the water inlet holes and the water drainage holes reserved on the pier body are not less than 5 cm.
3. the temperature-controlled construction device for the large-volume concrete of the pier body according to claim 2, wherein the distance between the water inlet hole and the water discharge hole is not less than 80 cm.
4. The temperature-controlled construction device for the large-volume concrete of the pier body according to claim 3, wherein the main water supply pipeline is formed by connecting a plurality of sections of steel pipes through threads, and at least one fixed point is arranged between each section of steel pipe and the pier body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822171428.9U CN209779452U (en) | 2018-12-24 | 2018-12-24 | Pier shaft bulky concrete control by temperature change construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822171428.9U CN209779452U (en) | 2018-12-24 | 2018-12-24 | Pier shaft bulky concrete control by temperature change construction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209779452U true CN209779452U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822171428.9U Active CN209779452U (en) | 2018-12-24 | 2018-12-24 | Pier shaft bulky concrete control by temperature change construction equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN209779452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979923A (en) * | 2020-09-02 | 2020-11-24 | 卢枫 | Pier shaft bulky concrete control by temperature change construction equipment |
-
2018
- 2018-12-24 CN CN201822171428.9U patent/CN209779452U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979923A (en) * | 2020-09-02 | 2020-11-24 | 卢枫 | Pier shaft bulky concrete control by temperature change construction equipment |
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