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Concrete structure full-life performance intelligent sensing and degradation warning system and method

A technology for concrete structures and early warning systems, applied in transmission systems, closed-circuit television systems, alarms, etc., can solve the problems of misjudgment of critical states of reinforced concrete structures, inaccurate test results, etc., and achieve the effect of improving deterioration and ensuring accuracy.

Active Publication Date: 2019-12-13
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology

And there will be some acid gas or acid liquid in some industrial environments, which will cause the neutralization of concrete, and the chloride ion sensor embedded in the concrete is affected by the pH value. If it is not corrected, the test result will be inaccurate. Will lead to misjudgment of the critical state of reinforced concrete structures

Method used

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  • Concrete structure full-life performance intelligent sensing and degradation warning system and method
  • Concrete structure full-life performance intelligent sensing and degradation warning system and method
  • Concrete structure full-life performance intelligent sensing and degradation warning system and method

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Embodiment 1

[0058] Embodiment 1. This embodiment discloses a concrete structure life-span performance intelligence perception and deterioration early warning system, such as figure 1 As shown, it includes a main control module, a multifunctional sensor module, an anti-theft module and a critical early warning module. The multifunctional sensor module, the antitheft module and the critical early warning module are all connected to the main control module. Inside the structure, including temperature and humidity sensors, chloride ion-pH gradient sensors, Hall voltage type steel corrosion sensors, steel stress sensors and concrete strain sensors; among them, the temperature and humidity sensors, steel stress sensors, and concrete strain sensors are used to monitor the temperature of concrete , humidity, steel bar stress, concrete strain and other parameters, the chloride ion-pH gradient sensor is used to detect the chloride ion content and pH value at different depths in the concrete, and the...

Embodiment 2

[0090] Embodiment 2. Based on the intelligent perception and deterioration early warning system for the life-span performance of concrete structures proposed in embodiment 1, this embodiment discloses a corresponding early warning method, which specifically includes the following steps:

[0091] Step 1, collect concrete state data based on the multifunctional sensor module, the state data includes temperature, humidity, chloride ion concentration, pH value, steel bar corrosion parameters, steel bar stress and concrete strain data, and pre-process the collected concrete state data deal with;

[0092] Step 2. Correcting the collected concrete internal pH value based on the temperature to obtain accurate monitoring results of the concrete internal pH value;

[0093] Step 3, based on the temperature and pH value, correct the collected chloride ion concentration information inside the concrete to obtain accurate monitoring results of the chloride ion content inside the concrete;

...

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Abstract

The invention discloses a concrete structure full-life performance intelligent sensing and degradation warning system and method. The warning system comprises a main control module, a multifunctionalsensor module, an anti-theft module and a critical warning module. The environmental parameters in concrete are monitored through the multifunctional sensor module, and the remaining service life of the structure is accurately predicted by using a life prediction model according to the temperature, humidity, chloride ion concentration and pH value at different depths and the dynamically obtained critical chloride ion concentration and structure stress state. Besides, during warning analysis, a targeted correction method is designed for collected data. Through temperature and pH correction of real-time monitoring data of a chloride ion sensor, the accuracy of the monitoring data is further guaranteed, and a scientific basis is provided for structure durability evaluation, protection and repair. The system and the method have high practical application value.

Description

technical field [0001] The invention belongs to the technical field of civil engineering material performance testing equipment, and in particular relates to a system and method for intelligent perception and deterioration early warning of concrete structure life-span performance. Background technique [0002] In reinforced concrete structures, the microenvironmental conditions of the internal structure determine the corrosion of steel bars, which in turn affects the service life of reinforced concrete structures in service. The microenvironmental conditions of the internal structure mainly include temperature, humidity, pH value, chloride ion concentration, and stress and strain. and other parameters. Especially in the marine environment, reinforced concrete structures are often attacked by chloride ions, resulting in premature deterioration of the structure. [0003] Reinforced concrete structures at home and abroad are facing very serious durability problems. According t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02H04N7/18G08B13/196G08B21/18H04L29/08
CPCG01D21/02H04N7/18G08B13/19617G08B13/19654G08B21/182H04L67/025H04L67/12G01N33/383H04N7/183G08B13/19656G08B3/10
Inventor 王鹏刚田玉鹏金祖权赵铁军侯东帅张鹏林旭梅姜福香万小梅郭思瑶王兰芹路志博
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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