Non-destructive automatic monitoring system and method used for steel structure bridge health monitoring

Abstract

The invention discloses a non-destructive automatic monitoring system and a method used for steel structure bridge health monitoring. The non-destructive automatic monitoring system comprises a control module, and a solar energy charging unit, a multi-channel vibration sensor, a pulse laser generator, a capacitor air coupling sensor, GPS positioning units, a wireless transmit-receive unit, a memory unit, and a clock unit; the control module is receiving data of the multi-channel vibration sensor, and determining whether the value of the multi-channel vibration sensor is higher than a thresholdvalue, is used for acquiring signals from the plus laser generator and the capacitor air coupling sensor and determining whether cracks are caused, and is used for acquiring signals from the GPS positioning units, and calculating bridge three dimensional coordinates and rotation angles. The non-destructive automatic monitoring system can be used for real-time self monitoring on the main parameters of steel structure bridges, on one hand, it is helpful in sending effective early warning to drivers before occurrence of bridge ricks, and on the other hand, is capable of providing bridge designers and maintainers with valuable complete period data, and possesses certain economical value.

Description

technical field [0001] The invention belongs to the field of building quality monitoring, in particular to a non-destructive automatic monitoring system for steel structure bridge health monitoring. Background technique [0002] Steel structure bridges play an irreplaceable role in transportation, but the inspection and maintenance workload of bridges is extremely huge. On the one hand, the proportion of old bridges in my country is very large. These bridges have low design standards at the beginning, and at the same time lack the necessary Maintenance and repair, its aging phenomenon is becoming more and more serious, and the carrying capacity is significantly reduced, which gradually cannot meet the needs of modern transportation development. On the other hand, with the development of industrial construction, the frequency of transporting extra-large and extra-heavy equipment on roads and railways has been greatly increased. When those overweight vehicles pass through the br...

AI Technical Summary

Problems solved by technology

Although there are currently some bridge internal structure detection devices, their functions are generally single, and they are in contact with the bridge and are destructive, such as local damage detection technologies such as core drilling and nailing, and semi-damage detection technologies such as anchor pullout on the surface of bridge concrete. , so how to realize the automatic detection under the non-damage mechanism is an urgent problem in the field of bridge health detection.

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