CN214459723U - Temperature crack control system of concrete bridge pier - Google Patents
Temperature crack control system of concrete bridge pier Download PDFInfo
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- CN214459723U CN214459723U CN202120561597.2U CN202120561597U CN214459723U CN 214459723 U CN214459723 U CN 214459723U CN 202120561597 U CN202120561597 U CN 202120561597U CN 214459723 U CN214459723 U CN 214459723U
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Abstract
The utility model discloses a temperature crack control system of concrete pier, include: the first detection unit is arranged inside each concrete layer; the first detection unit comprises a first sensor with a temperature detection function and/or a stress detection function; the first detection unit is arranged outside each concrete layer; the second detection unit comprises a second sensor with a temperature detection function and/or a stress detection function; and the data receiver is used for receiving the detection data of the first detection unit and the second detection unit. The first detection unit and the second detection unit can monitor the temperature inside and outside the concrete pier in real time, and therefore when the temperature difference between the inside and the outside is large, the temperature difference during subsequent concrete layer pouring can be reduced by adjusting measures such as the thickness of a subsequent pouring layer, pouring interval time, the temperature of concrete slurry, the initial temperature of cooling water and the like.
Description
Technical Field
The utility model relates to a technical field of the temperature crack control of concrete pier particularly, relates to the temperature crack control system of concrete pier.
Background
The bridge engineering is the throat engineering in traffic engineering, and occupies an extremely important position, the quality of bridge foundation engineering has a prerequisite effect on the safe operation of a bridge, and special design requirements such as concrete continuous pouring and no post-cast strip are often met in the design, and the requirement on large-volume foundation concrete is strict. With the increasing number of large-span and high-pier bridges, due to different geological conditions and requirements on bridge stability, the size of a bridge foundation is larger and larger, and the problem of temperature cracks at the foundation part becomes one of the problems which need to be considered in the bridge design and construction process. Once the base part has cracks beyond the allowable range, serious potential safety hazards are necessarily left. The deformation of the bridge structure can not be used normally if the bridge structure is deformed, and the collapse of the bridge can be caused if the bridge structure is deformed, so that huge life and property losses are caused.
The temperature crack control of the existing concrete bridge pier is usually controlled by the experience of constructors, and the temperature crack is difficult to be effectively avoided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides the temperature crack control system of concrete pier to solve the technical problem that the temperature crack is difficult to avoid among the prior art.
In order to achieve the above object, the utility model provides a temperature crack control system of concrete pier. The technical scheme is as follows:
the concrete bridge pier comprises a plurality of concrete layers that the layering was pour, and the temperature crack control system of concrete bridge pier includes:
the first detection unit is arranged inside each concrete layer; the first detection unit comprises a first sensor with a temperature detection function and/or a stress detection function;
the first detection unit is arranged outside each concrete layer; the second detection unit comprises a second sensor with a temperature detection function and/or a stress detection function;
and the data receiver is used for receiving the detection data of the first detection unit and the second detection unit.
The temperature stress is generated when the temperature difference between the inner part and the outer side of the cast-in-place concrete pier is large, and the temperature stress is a main reason for causing the concrete pier to crack. Therefore, the utility model discloses a temperature crack control system's first detecting element and second detecting element can real-time supervision concrete pier's inside and the temperature in the outside, from this, when the inside great time with the difference in temperature in the outside, can reduce the difference in temperature when follow-up concrete layer is pour through measures such as adjustment subsequent pouring layer thickness, pouring interval time, the temperature of concrete thick liquids and cooling water initial temperature to help reducing the probability that concrete bridge temperature crack produced.
Further, the first detection unit is arranged at the bottom of each concrete layer. Thereby, the validity of the data of the first detection unit is better.
Further, each first detection unit includes at least two first sensors. Therefore, the first detection unit detects more comprehensively.
Further, each first detection unit at least comprises a first sensor arranged at the center of the bottom of the concrete layer. Thereby, the validity of the data of the first detection unit is better.
Further, the first sensor is bound and fixed with steel bars of the concrete pier. The first sensor can be directly fixed on the steel bars and can also be hung between the two steel bars. Thereby, the first sensor is prevented from moving when the concrete slurry is injected and vibrated.
Further, the temperature crack control system also has a first temperature control structure having: the pipelines are arranged inside the concrete bridge pier and distributed along the axial direction of the concrete bridge pier; the cooling tower is used for inputting cooling water into the pipeline; a first temperature detector for detecting a temperature of the cooling water in the cooling tower; and the first heat exchange mechanism is used for reducing or increasing the temperature of the cooling water entering the pipeline. The temperature of the cooling water in the cooling tower can be directly controlled, and the temperature can also be controlled in the process of conveying the cooling water to the pipeline; this adaptively adjusts the temperature of the cooling water, and helps avoid temperature cracking.
Further, the pipelines are two and are symmetrically distributed. Therefore, the cooling effect is better.
Further, the temperature crack control system also has a second temperature control structure having: the stirring tank is used for preparing concrete slurry; the second temperature detector is used for detecting the temperature of the concrete slurry in the stirring tank; and the second heat exchange mechanism is used for reducing or increasing the temperature of the concrete slurry before pouring. The temperature of the concrete slurry in the stirring tank can be directly controlled, and the temperature can also be controlled in the process of transporting the concrete slurry into the concrete template; this adaptively adjusts the temperature of the concrete slurry, and helps prevent the occurrence of temperature cracks.
Further, the first sensor and/or the second sensor employ a strain gauge having a temperature compensation function. Therefore, the use amount of the sensors is reduced on the premise of ensuring the validity of data, the cost is reduced, the installation is simplified, and the influence on the strength of the concrete pier is reduced.
It can be seen that the utility model discloses a temperature crack control system's structure is very simple, but the practicality is strong, and great contribution is made for avoiding the cracked production of temperature to the inside that can real-time supervision concrete pier and the temperature in the outside.
The present invention will be further described with reference to the accompanying drawings and the detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which form a part of the disclosure, are included to assist in understanding the disclosure, and the description provided herein and the accompanying drawings, which are related thereto, are intended to explain the disclosure, but do not constitute an undue limitation on the disclosure.
In the drawings:
fig. 1 is a schematic view of a temperature crack control system for a concrete bridge pier according to embodiment 1 of the present invention.
The relevant references in the above figures are:
100-concrete layer, 200-first sensor, 300-second sensor, 400-pipe.
Detailed Description
The present invention will be described more fully with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Before the present invention is described with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in each part including the following description may be combined with each other without conflict.
Moreover, references to embodiments of the invention in the following description are generally only to be considered as examples of the invention, and not as all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
With respect to the terms and units of the present invention. The terms "comprising," "having," and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
Example 1
Fig. 1 is a schematic structural view of a temperature crack control system of a concrete bridge pier according to this embodiment.
As shown in fig. 1, the concrete bridge pier is formed by a plurality of concrete layers 100 which are poured in layers, and the temperature crack control system includes a first detection unit, a second detection unit and a data receiver.
The first detection unit is arranged at the bottom of each concrete layer 100; each of the first sensing units includes five first sensors 200, wherein the first sensor 200 is provided at the bottom center of the concrete layer 100; the first sensor 200 is bound and fixed with the steel bars of the concrete bridge pier;
the first detection unit is arranged outside each concrete layer 100; the first detection unit includes a second sensor 300.
The first sensor 200 and the second sensor 300 adopt strain gauges with temperature compensation functions, so that the temperature detection function and the stress detection function are achieved;
the data receiver receives the detection data of the first detection unit and the second detection unit through the cable.
Example 2
Compared to example 1, the temperature crack control system for a concrete pier of the present example has the following differences: the temperature crack control system also has a first temperature control structure having a pipeline 400, a cooling tower, a first temperature detector, and a first heat exchange mechanism.
The pipelines 400 are arranged inside the concrete bridge pier and distributed along the axial direction of the concrete bridge pier, and the two pipelines 400 are symmetrically distributed; the cooling tower is used for inputting cooling water into the pipeline 400; the first temperature detector is used for detecting the temperature of cooling water in the cooling tower; the first heat exchanging means serves to lower or raise the temperature of the cooling water entering the pipe 400.
From this, when the staff finds that the inside and outside difference in temperature of the concrete layer 100 that has pour is great, can adjust the temperature of cooling water through first heat transfer mechanism, from this, help reducing the follow-up difference in temperature of not pouring concrete layer 100 when pouring to reduce the probability that the temperature crack takes place.
Example 3
Compared to example 1, the temperature crack control system for a concrete pier of the present example has the following differences: the temperature crack control system also comprises a second temperature control structure, wherein the second temperature control structure is provided with a stirring tank, a second temperature detector and a second heat exchange mechanism.
The stirring tank is used for preparing concrete slurry; the second temperature detector is used for detecting the temperature of the concrete slurry in the stirring tank; the second heat exchange mechanism is used for reducing or increasing the temperature of the concrete slurry before pouring.
From this, when the staff finds that the inside and outside difference in temperature of concrete layer 100 that has pour is great, can adjust the temperature of concrete thick liquids through second heat transfer mechanism, from this, help reducing the follow-up difference in temperature of not pouring concrete layer 100 when pouring to reduce the probability that the temperature crack takes place.
The first heat exchange mechanism and the second heat exchange mechanism can be realized by adopting common heaters or heat exchangers.
In addition, can set up data processing center, data processing center remote reception data receiver's data and handle, obtain required cooling water temperature and concrete slurry temperature after the processing is accomplished, then export on the staff of first temperature control structure and the staff's of second temperature control structure display, so not only showing and having reduced work load, cooling water temperature and concrete slurry temperature's accuracy is higher moreover.
The contents of the present invention have been explained above. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Based on the above-mentioned contents of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Claims (9)
1. Temperature crack control system of concrete pier, the concrete pier comprises a plurality of concrete layer (100) of layering pouring, its characterized in that: the temperature crack control system comprises:
a first detection unit provided inside each concrete layer (100); the first detection unit comprises a first sensor (200) having a temperature detection function and/or a stress detection function;
a second detection unit, said first detection unit being provided outside each concrete layer (100); the second detection unit comprises a second sensor (300) having a temperature detection function and/or a stress detection function;
and the data receiver is used for receiving the detection data of the first detection unit and the second detection unit.
2. The temperature crack control system of a concrete pier according to claim 1, wherein: the first detection unit is arranged at the bottom of each concrete layer (100).
3. The temperature crack control system of a concrete pier according to claim 1, wherein: each first detection unit comprises at least two first sensors (200).
4. The temperature crack control system of a concrete pier according to claim 3, wherein: each first detection unit comprises at least a first sensor (200) arranged at the bottom center of the concrete layer (100).
5. The temperature crack control system of a concrete pier according to claim 1, wherein: the first sensor (200) is bound and fixed with the steel bars of the concrete pier.
6. The temperature crack control system of a concrete pier according to claim 1, wherein: the temperature crack control system also has a first temperature control structure having:
the pipeline (400) is arranged inside the concrete bridge pier and distributed along the axial direction of the concrete bridge pier;
a cooling tower for feeding cooling water into the pipe (400);
a first temperature detector for detecting a temperature of the cooling water in the cooling tower;
the first heat exchange mechanism is used for reducing or increasing the temperature of the cooling water entering the pipeline (400).
7. The temperature crack control system of a concrete pier according to claim 6, wherein: the pipelines (400) are two and symmetrically distributed.
8. The temperature crack control system of a concrete pier according to claim 1, wherein: the temperature crack control system also has a second temperature control structure having:
the stirring tank is used for preparing concrete slurry;
the second temperature detector is used for detecting the temperature of the concrete slurry in the stirring tank;
and the second heat exchange mechanism is used for reducing or increasing the temperature of the concrete slurry before pouring.
9. The temperature crack control system of a concrete pier according to claim 1, wherein: the first sensor (200) and/or the second sensor (300) adopt strain gauges with temperature compensation functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120561597.2U CN214459723U (en) | 2021-03-18 | 2021-03-18 | Temperature crack control system of concrete bridge pier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120561597.2U CN214459723U (en) | 2021-03-18 | 2021-03-18 | Temperature crack control system of concrete bridge pier |
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| CN214459723U true CN214459723U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775409A (en) * | 2022-04-13 | 2022-07-22 | 中铁三局集团广东建设工程有限公司 | Pier column construction process based on temperature control |
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2021
- 2021-03-18 CN CN202120561597.2U patent/CN214459723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775409A (en) * | 2022-04-13 | 2022-07-22 | 中铁三局集团广东建设工程有限公司 | Pier column construction process based on temperature control |
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