Structural health monitoring system of prefabricated assembly type concrete system, and integration method

Abstract

The invention provides an integration method of a structural health monitoring system of a prefabricated assembly type concrete system, and belongs to the technical field of building. One or more than one sensors are implanted into a prefabricated assembly type member, a sensor communication interface is arranged at the surface of the prefabricated assembly type concrete member, after each member is assembled in a field, in a decoration construction process, each sensor is then connected with a monitoring system analysis terminal through the sensor communication interface of the member, and thus various structure information of the member can be transmitted to the monitoring system terminal through the sensors. According to the invention, sensor arrangement and erection of the monitoring system are embedded in the construction flow of an assembly type concrete structure, sensor implantation can be realized in a member mode, customization and standardization of a sensing function of the member is realized, and assembling and integration of the structural health monitoring system are also realized.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a structural health monitoring system and an integration method of a prefabricated concrete system. Background technique [0002] With the development of science and technology, fiber grating sensors are gradually applied to the health monitoring of reinforced concrete structures, such as fiber grating strain gauges, fiber grating accelerometers, fiber grating displacement meters, fiber grating temperature sensors, etc. Sensing products, compared with traditional electrical sensors, fiber grating sensors have the following advantages: [0003] 1. Anti-electromagnetic interference, high sensitivity, corrosion resistance, waterproof and other advantages. [0004] 2. The fiber grating integrates sensing and transmission, and is easy to embed in the material. At the same time, its small size makes it easy to stick on the surface of the structure, and realize accura...

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Problems solved by technology

[0007] The aforementioned FBG health monitoring system applied to cast-in-place reinforced concrete structures still has the following difficulties: ①The site construction conditions are harsh, and when the concrete is vibrated, it is very easy to cause a large amount of damage to the FBG sensor and the optical fiber wiring that transmits the signal. The rate is extremely low; ②The cast-in-place reinforced concrete structure cannot accurately and conveniently locate the sensor during the pouring process, or the sensor may be displaced due to concrete vibration, making it difficult to ensure accurate and timely extraction of the force information of key structural components; ③If the overall construction is completed After the system is set up, not only the installation of the sensor will cause additional damage to the structure, but also the wiring is not easy to hide and easily conflicts with the decoration

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