The invention discloses a bridge health and safety online monitoring cloud platform based on
big data comparative analysis. The bridge health and safety online monitoring cloud platform comprises a region division module, a detection point
layout module, a bridge opening
radius detection module, a bridge opening
radius analysis module, a vault
arc length acquisition module, a vault
arc length analysis module, an analysis
server, a cloud monitoring platform and a storage
database. The method comprises the following steps: dividing a bridge opening area of a to-be-monitored
arch bridge into a plurality of sub-areas, carrying out detection point arrangement on each sub-area in the bridge opening area, detecting the bridge opening
radius at the detection point position of each sub-area, comparing to obtain the bridge opening radius difference value of each sub-area, and simultaneously obtaining the arch crown
arc length of each sub-area in the bridge opening area, comprehensively calculating the bridge opening
health safety influence coefficient of the to-be-monitored
arch bridge, analyzing whether the bridge opening
health safety of the to-be-monitored
arch bridge is qualified or not, and if not, sending an early warning instruction to inform related personnel to carry out blocking and
processing, so that the travel potential safety hazards of people are reduced, and the life and property safety of people is guaranteed.