Urban bridge health monitoring system

Abstract

The invention relates to an urban bridge health monitoring system, and relates to the field of bridge safety monitoring. The urban bridge health monitoring system comprises a fixed cylinder, a settlement block, a displacement sensor and a monitoring host, the settlement block is slidably arranged in the fixed cylinder, the displacement sensor is arranged on the side wall of the settlement block, the urban bridge health monitoring system further comprises a support arranged on a bridge support, a settlement rod is arranged on the side wall, away from the displacement sensor, of the settlement block, a settlement hole is formed in the side wall, away from the displacement sensor, of the fixed cylinder, the end, away from the settlement block, of the settlement rod penetrates through the settlement hole and is connected with the support, a sealing assembly used for blocking a gap between the side wall of the settlement rod and the hole wall of the settlement hole is arranged on the fixed cylinder, a dust collection cavity is formed in the settlement rod, a plurality of dust collection holes communicated with the dust collection cavity are formed in the side wall, located in the fixed cylinder, of the settlement rod, a dust collection cavity is formed in the support, and a negative pressure assembly used for exhausting air in the dust collection cavity is arranged in the dust collection cavity. The system has the effect of improving the sliding stability of the settlement block in the fixed cylinder.

Description

technical field [0001] The application relates to the field of bridge safety monitoring, in particular to an urban bridge health monitoring system. Background technique [0002] Bridge health monitoring refers to the monitoring and evaluation of bridge structure conditions, and sends out early warning signals for bridges under special weather, traffic conditions or abnormally serious bridge operation conditions, and provides basis and guidance for bridge maintenance and management decisions to ensure Service safety and durability of large bridge structures. [0003] The Chinese patent with the notification number CN207779385U discloses a bridge support settlement monitoring device, which includes a fixed cylinder, a settlement block and a monitoring host. The fixed cylinder is fixedly installed on the side wall of the bridge support, and the settlement block is installed inside the fixed cylinder. There is a through hole on the upper end of the body, and the upper end of th...

AI Technical Summary

Problems solved by technology

[0004] With regard to the related technologies mentioned above, the inventor believes that there are the following defects: dust easily enters the interior of the fixed cylinder through the gap between the fixed rod and the wall of the through hole and adheres to the inner cylinder wall of the fixed cylinder, which increases the The friction between the settlement block and the wall of the fixed cylinder, when the bridge support settles, the settlement block is easily stuck during the lifting process, which affects the monitoring accuracy of the settlement height of the bridge support

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