Concrete stress-strain data acquisition system
By installing stress sensors and other sensors in concrete, combined with real-time data collection of data display screens, the problem of inaccurate collection of concrete stress and strain data in the prior art is solved, and automatic continuous measurement with high accuracy and high reliability is achieved.
Patent Information
- Application Number
- CN202420084017.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-01-12
AI Technical Summary
In the prior art, the collection of concrete stress and strain data has problems such as inaccurate installation location, system error and calculation error, resulting in inaccurate data.
A concrete stress and strain data acquisition system was designed, including installing stress sensors, embedded boxes, temperature sensors, humidity sensors and laser displacement sensors in concrete bodies, and collecting data in real time through the data display screen, and the sensor position is fixed to reduce artificiality. Factors influence, automatic continuous measurement is achieved.
Improves the accuracy and reliability of the data, ensures high and continuous measurement accuracy, reduces the impact of system errors, and enhances the accuracy of the final result.
Smart Images
Figure CN222298741U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of concrete stress strain data acquisition, and in particular relates to a concrete stress strain data acquisition system. Background Art
[0002] In the prior art, strain gauges are often used to collect data on concrete. Before concrete pouring, concrete strain gauges are buried inside the concrete. By observing the data changes of the strain gauges, concrete stress-strain curves are drawn to derive the changing laws and influencing factors of concrete stress-strain.
[0003] Disadvantages of existing technology:
[0004] (1) The installation position of the strain gauge should be accurate, otherwise it will affect the observed data.
[0005] (2) There are systematic errors that cannot be corrected, such as steel wire corrosion and reduced insulation of the measurement system. These observation data cannot be used.
[0006] (3) Because there are many measurement and calculation links, the errors introduced in each step and the propagation of errors reduce the accuracy of the final calculation results. Utility Model Content
[0007] The utility model aims to provide a concrete stress-strain data acquisition system, aiming to solve the problem of inaccurate concrete stress-strain data acquisition caused by various reasons in the prior art.
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete stress-strain data acquisition system, comprising a concrete entity, a stress sensor installed in the concrete entity, an embedded box installed on the concrete entity, a temperature sensor, a humidity sensor and a laser displacement sensor installed on the embedded box, a data display screen electrically connected to each sensor installed on the embedded box, and the embedded box is connected to the display screen through a data line.
[0009] Specifically, a measuring bracket is slidably mounted on the embedded box, and a laser displacement sensor is mounted on the measuring bracket.
[0010] Specifically, a measuring head is bonded to the upper surface of the concrete.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. It overcomes the great influence of human factors in the existing data collection work. The data is collected in real time through the data display screen, the data accuracy is high, and the results are accurate and reliable.
[0013] 2. This device can automatically and continuously measure the stress and strain of concrete with high measurement accuracy and can measure continuously.
[0014] 3. The installation position of the stress sensor is fixed together with the embedded box and will not affect the observed data. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 The accompanying drawings are specific embodiments of the present utility model;
[0017] In the figure: 1. Concrete entity; 2. Embedded box; 3. Stress sensor; 4. Probe; 5. Data display screen; 6. Humidity sensor; 7. Temperature sensor; 8. Laser displacement sensor; 9. Measuring bracket. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1 , the utility model provides the following technical solutions:
[0020] This device is a concrete stress and strain acquisition system, which is mainly composed of a pre-buried box, a measuring bracket, a probe, a laser displacement sensor, a temperature sensor, a humidity sensor, a stress sensor and a data display screen. The pre-buried box is connected to the display screen through a data line.
[0021] The laser displacement sensor, temperature sensor and humidity sensor are all installed inside the embedded box and can be connected to an external data acquisition terminal, such as ECU, through a data line. The same is true for the data display screen, which can be connected to an external data acquisition terminal, such as ECU, through a data line.
[0022] The main working principle is to embed stress sensors in concrete, bond probes to the upper surface of concrete, and install measuring brackets and laser displacement sensors above the probes. The measuring brackets and laser displacement sensors are located in a pre-embedded box embedded in concrete, and temperature sensors and humidity sensors are installed on the side walls of the box. The laser displacement sensor, temperature sensor, and humidity sensor are all connected to the data display screen outside the box, and the data of each sensor is collected and recorded through the data display screen. The data collected by the data display screen can be transmitted to a computer or mobile device, and then the data is uniformly screened and analyzed for research.
[0023] The key points of this device are as follows:
[0024] (1) The sensor and the embedded box are integrally cast into the concrete. The sensor is accurately positioned, the connection with the data display screen is stable, and the data transmission distance is short.
[0025] (2) The laser displacement sensor is installed and fixed on the measuring bracket, and the measuring bracket can be moved and adjusted to ensure that the laser displacement sensor can be accurately aligned with the probe below to accurately measure the concrete strain.
[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A concrete stress-strain data acquisition system, comprising a concrete entity, characterized in that: A stress sensor is installed in the concrete entity, an embedded box is installed on the concrete entity, a temperature sensor, a humidity sensor and a laser displacement sensor are installed on the embedded box, and a data display screen electrically connected to each sensor is installed on the embedded box.
2. A concrete stress-strain data acquisition system according to claim 1, characterized in that: A measuring bracket is installed on the embedded box, and a laser displacement sensor is installed on the measuring bracket.
3. A concrete stress-strain data acquisition system according to claim 1, characterized in that: A measuring bracket is slidably mounted on the embedded box.
4. A concrete stress-strain data acquisition system according to any one of claims 1 to 3, characterized in that: The measuring head is bonded to the upper surface of the concrete.