Vehicular safety monitoring system for shapes and structures of bridge floors and detection method

Abstract

The invention discloses a vehicular safety monitoring system for shapes and structures of bridge floors and a detection method. The monitoring system is characterized in that a T-shaped structure detecting frame is combined with a laser sensor, real-time coordinate values of monitoring points of a detected bridge floor are detected by the aid of a longitudinal beam and are used for correcting the spatial position of a crossbeam, so that vertical detection is realized, a real curved surface structure of the bridge floor is obtained, according to the law that the appearance of the bridge floor and the structural curved surface of the bridge floor are inevitably changed when damage causing danger to the structural safety of a conventional beam bridge and a conventional arch bridge is caused, the safety of a current bridge structure is judged by means of analyzing and comparing of all previous detected and monitored changes of bridge beam floor appearances (the appearance of the bridge floor and the curved surfaces of the bridge floor), relevant structural damage causing danger to the safety of the bridge can be accurately found out, and the bridge is used safety assuredly. In addition, requirements on an environment with the bridge are omitted, traffic of the bridge is unaffected when the bridge is detected, the vehicular safety monitoring system and the detection method are economical and efficient, time and labor cost are saved remarkably, and bridge safety inspection accuracy and efficiency are obviously improved.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a vehicle-mounted bridge deck form-structure safety monitoring system and a detection method. Background technique [0002] Bridges are essential facilities for road traffic. Among the large number of road bridges, due to economic, technical, personnel, social and other reasons, some bridges have entered the old age ahead of schedule. In view of the current economic conditions and social needs, these old bridges will still be in use for a long period of time in the future. However, effective monitoring and management measures need to be taken to ensure that these bridges prevent major safety accidents during their use. occur. [0003] In the prior art, bridge inspections are divided into frequent inspections, periodic inspections and special inspections. Regular and special inspections of bridges usually refer to the close observation and testing of the main structure under the...

AI Technical Summary

Problems solved by technology

The cross-section of the road measured by this method has high accuracy, while the longitudinal composition of the road surface relies on the vehicle's inertial reference system to correct the vehicle bump information, which can be analyzed and described theoretically under specific conditions. Two-way pavement shape, but the accuracy of the actual longitudinal pavement shape data is poor, which cannot meet the needs of bridge deck shape testing for structural behavior discrimination

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