Prefabricated same-material concrete column type bridge temperature intelligent monitoring device
By prefabricating temperature and humidity sensors in concrete columns of the same material as the bridge and combining them with lightweight solar power supply, the problems of inconvenient installation and high energy consumption of bridge temperature monitoring devices are solved, and efficient and accurate temperature and humidity monitoring is achieved.
Patent Information
- Application Number
- CN202422898952.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing bridge temperature monitoring devices are difficult to install, easily affected by construction, and difficult to accurately reflect the thermal properties of concrete materials. Data collection and transmission consume a lot of energy and have poor energy supply sustainability. In addition, existing methods lack verification with actual measured data, which affects monitoring accuracy and reliability.
Prefabricated concrete columns of the same material are used to house multiple chambers, encapsulate temperature sensors and humidity sensors, and use lightweight solar panels and power supply conduits. Combined with data acquisition, storage and transmission, low-power monitoring is achieved, and real-time data is transmitted via Bluetooth and 5G to adapt to the thermal performance of bridge structure materials.
It achieves precise monitoring of temperature and humidity inside the bridge, reduces construction impact, improves the accuracy and reliability of monitoring results, reduces energy consumption, and supports long-term stable data collection and analysis.
Smart Images
Figure CN223376791U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge detection, and in particular relates to a temperature intelligent monitoring device for a prefabricated concrete column type bridge of the same material. Background Art
[0002] Bridges are subject to environmental influences during long-term use. High temperatures, prolonged sunlight, and strong cold snaps can cause the surface temperature of the concrete to fluctuate rapidly. However, due to the heat transfer properties of concrete, significant temperature differences exist between the interior and exterior concrete. The resulting temperature stresses can cause varying degrees of concrete cracking and damage to the concrete's internal structure, reducing the bridge's bearing capacity and posing safety and durability risks. As concrete bridges age, global climate change intensifies, and the impact of frequent extreme weather events intensifies, the observation and analysis of temperature effects on proposed and existing bridges is becoming increasingly important. Currently, temperature observation is often achieved through pre-installed temperature sensors during construction, which are difficult to quickly install and deploy on existing bridges, making their application inconvenient. Traditional monitoring equipment also has high installation and maintenance costs.
[0003] There are still several problems: (1) Installation is inconvenient, and sensors are easily affected by construction: Cables, terminals and other equipment occupy a large area of the bridge construction during installation, which has a certain impact on the construction process of the bridge under construction. In addition, in the on-site environment, the complex working environment will cause various accidental damages to the sensors and cables, affecting the accuracy and effectiveness of the subsequent data collection and analysis. (2) It is difficult to use on existing bridges: Since the installation of sensors often needs to be carried out as construction progresses, the surface temperature of existing bridges can generally only be observed, and the internal temperature is analyzed by combining finite element calculations. However, this method lacks actual measurement data verification and has certain reliability issues. (3) Existing concrete temperature observation sensors are mostly connected by tying to steel bars, which makes it difficult to accurately reflect the thermal properties of concrete materials and will have a certain impact on the observation results. In particular, the modular observation system is more significantly affected by the results obtained under conditions of rapid temperature changes. (4) The data collection and transmission system consumes a lot of energy. After adding the energy supply system, the convenience will be further reduced, and there are also sustainability issues in the energy supply. Summary of the Invention
[0004] The purpose of this utility model is to provide a temperature intelligent monitoring device for prefabricated concrete column bridges of the same material. The technical solution adopted to achieve the above purpose is:
[0005] A precast concrete column type bridge temperature intelligent monitoring device is characterized by comprising a precast concrete column, a plurality of accommodating chambers are provided from top to bottom in the precast concrete column, and a sensor group is encapsulated in the precast concrete column;
[0006] The sensor group includes a power supply line tube, multiple temperature sensors and multiple humidity sensors. Each temperature sensor is located in a corresponding accommodating chamber. The multiple humidity sensors are arranged in sequence from top to bottom. The power transmission lines of the multiple temperature sensors and the multiple humidity sensors are encapsulated in the power supply line tube. The power supply line tube is arranged along the axis of the precast concrete column, and a lightweight solar power supply panel, a data acquisition and storage device and a data transmission device are electrically connected to the outer end of the power supply tube.
[0007] Preferably, the precast concrete column has the same concrete grade and thermal parameters as the bridge to be tested.
[0008] Preferably, the length of the precast concrete column corresponds to the thickness of the bridge to be measured.
[0009] Preferably, the interval between two adjacent temperature sensors gradually decreases from bottom to top.
[0010] Preferably, there are three humidity sensors, which are respectively located at the upper, middle and lower positions of the precast concrete column.
[0011] Preferably, the number of the temperature sensors is the same as the number of the accommodating chambers, one temperature sensor is arranged in one accommodating chamber, and a high thermal conductivity medium is filled between the precast concrete column and the hole of the bridge to be tested.
[0012] Preferably, a plurality of protrusions protruding outward are provided around the circumference of the top of the precast concrete column.
[0013] Preferably, the end of the precast concrete column is a pointed end.
[0014] The beneficial effects of the present invention are as follows: the present invention first establishes a precast concrete column, and can arrange low-power Bluetooth temperature sensors according to the gradient distribution characteristics of the temperature of different research objects, arrange the temperature sensors and humidity sensors in the precast concrete column according to the design, and take protective measures to ensure safe use.
[0015] Precast concrete columns can be used to arrange additional locations for temperature sensors and humidity sensors, and can also protect temperature sensors and humidity sensors from damage in complex construction environments. By adjusting the concrete grade of the precast concrete columns, the thermal performance of the bridge structure materials to be monitored can be effectively adapted to improve the accuracy of the observation results.
[0016] Precast concrete columns have good pertinence and applicability. They can be conveniently installed and used in bridges under construction after prefabrication. They can also be replaced and installed after drilling holes in the concrete beams, concrete bridge decks and other locations of completed bridges. They can be used in a wide range of concrete bridges.
[0017] The utility model has a compact overall structure and is easy to use. It can provide long-term and stable temperature data inside the concrete, realizing long-term data collection and real-time reception. In the later stage, it can also rely on the observation system to carry out long-term monitoring of the temperature effect of concrete bridges and timely collection and analysis of temperature data. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the utility model in specific embodiment 1;
[0019] Figure 2 It is a structural schematic diagram of the utility model in specific embodiment 2. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings. Specific embodiment 1:
[0022] like Figure 1 As shown, the present invention includes a precast concrete column 4, in which a plurality of accommodating chambers 3 are provided from top to bottom, and a sensor group is encapsulated in the precast concrete column 4;
[0023] The sensor group includes a power supply line tube 2, multiple temperature sensors 7 and multiple humidity sensors 8, 9, each temperature sensor 7 is located in the corresponding accommodating chamber 3, and the multiple humidity sensors 9 are arranged in sequence from top to bottom. Preferably, there are three humidity sensors 9, which are respectively located at the upper, middle and lower positions of the precast concrete column 4. The power transmission line 1 of the multiple temperature sensors 7 and the multiple humidity sensors 8, 9 is encapsulated in the power supply line tube 2, and the power supply line tube 2 is arranged along the axial direction of the precast concrete column 4, and a lightweight solar power supply panel, a data acquisition and storage device and a data transmission device are electrically connected to the outer end of the power supply tube 2, wherein the data acquisition and storage device and the data transmission device are installed in the box 6, and the lightweight solar power supply panel is installed on the top of the box 6.
[0024] The precast concrete cylinder 4 shares the same concrete grade and thermal parameters as the bridge under test, effectively adapting to the thermal properties of the bridge's structural materials and improving the accuracy of monitoring results. The length of the precast concrete cylinder 4 corresponds to the thickness of the bridge under test, enabling temperature monitoring at all depths. Because the temperature difference decreases with increasing depth, the spacing between adjacent temperature sensors 7 decreases from bottom to top, enabling better analysis of the bridge's temperature gradient.
[0025] The number of the temperature sensors 7 is the same as the number of the accommodating chambers 3 , with one temperature sensor 7 arranged in one accommodating chamber 3 , and a high thermal conductivity medium is filled between the precast concrete column 4 and the hole of the bridge to be measured to further ensure the accuracy of the measured temperature.
[0026] In order to prevent the precast concrete column 4 from falling into the hole of the bridge to be tested and being unable to be removed, a plurality of protruding blocks 5 are provided around the top of the precast concrete column 4 and protruded outward; the end of the precast concrete column 4 can also be set as a pointed end 9. Specific embodiment 2:
[0028] On the basis of specific embodiment 1, multiple accommodating chambers 3 are eliminated, and the sensor group, namely the power supply line tube 2, multiple temperature sensors 7 and multiple humidity sensors 8, 9, is fixed in position and arranged. Then, a template is erected outside and concrete is poured inside to form it. This method is convenient and quick to manufacture.
[0029] When the present invention is used, a hole is first drilled at the location to be monitored on the bridge to be monitored, and then the present invention device is placed in the drilled hole. The lightweight solar power panel provides working power for the temperature sensor 7, the humidity sensor 9, the data acquisition and storage, and the data transmission device. The temperature and humidity data at different depths and positions monitored by the temperature sensor 7 and the humidity sensor 9 are transmitted via Bluetooth connection to the mobile data acquisition and storage device for storage, and are regularly transmitted to the mobile terminal via the 5G data transmission device. The data can be viewed in real time through mobile terminals such as mobile phones and computers, and feedback can be given in a timely manner for any problems that arise, eliminating the need for operators to check the tedious records one by one on site. During operation, the arrangement of the temperature sensor 7 and the humidity sensor 9 can be adjusted according to the regional temperature gradient distribution pattern.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A temperature intelligent monitoring device for prefabricated concrete column bridges of the same material, characterized in that: It includes a precast concrete column, wherein a plurality of accommodating chambers are provided from top to bottom in the precast concrete column, and a sensor group is encapsulated in the precast concrete column; The sensor group includes a power supply line tube, multiple temperature sensors and multiple humidity sensors. Each temperature sensor is located in a corresponding accommodating chamber. The multiple humidity sensors are arranged in sequence from top to bottom. The power transmission lines of the multiple temperature sensors and the multiple humidity sensors are encapsulated in the power supply line tube. The power supply line tube is arranged along the axis of the precast concrete column, and a lightweight solar power supply panel, a data acquisition and storage device and a data transmission device are electrically connected to the outer end of the power supply tube.
2. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to claim 1 is characterized in that: The precast concrete column has the same concrete grade and thermal parameters as the bridge to be tested.
3. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to claim 1 is characterized in that: The length of the precast concrete cylinder corresponds to the thickness of the bridge to be tested.
4. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to any one of claims 1 to 3, characterized in that: The interval between two adjacent temperature sensors gradually decreases from bottom to top.
5. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to any one of claims 1 to 3, characterized in that: There are three humidity sensors, which are respectively located at the upper, middle and lower positions of the precast concrete column.
6. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to any one of claims 1 to 3, characterized in that: The number of the temperature sensors is the same as the number of the accommodating chambers. One temperature sensor is arranged in one accommodating chamber, and a high thermal conductivity medium is filled between the precast concrete column and the hole of the bridge to be tested.
7. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to any one of claims 1 to 3, characterized in that: A plurality of protrusions protruding outwards are arranged around the top of the precast concrete column.
8. The intelligent temperature monitoring device for prefabricated concrete column bridges of the same material according to any one of claims 1 to 3, characterized in that: The end of the precast concrete column is a pointed end.