The health status of 30 viaducts is monitored in real time.

The Yangtze River Daily Da Wuhan Client News On the morning of June 16th, at Huangpu Road Station of Rail Transit Line 1, Wuhan, a train left the platform steadily. And in real time through 5G signals to Wuhan Rail Transit Bridge Health Monitoring System Management Platform. At the China Railway Bridge Science Research Institute, Hu Junliang, a doctor of the Bridge Structure Health Monitoring Research Center, immediately saw the driving screen and bridge data changes in the background.

The Beidou receiver, high -definition camera and dynamic deflection instrument are installed on the viaduct between Huangpu Road Station and Tou -Toujie Station. Reporter Wan Ling Photo

In November last year, Wuhan Metro Group introduced the bridge intelligent cluster monitoring technology of the China Railway Bridge Science Research Institute, and installed a health monitoring system on the 30 high bridges of rail transit line 1. This is the first time in China to monitor large -scale, clustering and healthy monitoring of rail transit bridges. Monitoring data over the past six months show that there are no hidden safety hazards in the viaduct of Rail Transit Line 1.

The reporter from the Yangtze River Daily saw on the screen of the Wuhan Rail Transit Bridge Health Monitoring System Management Platform that there is a bunch of green icons on the map, which represents the 30 vassal bridges of rail transit line 1. Hu Junliang clicked on the viaduct between Huangpu Road Station to Tou -Tao Street Station with mouse, and monitored the screen to switch to the real three -dimensional map of the viaduct. The system shows that the main span length of this bridge is 105 meters, the bridge age is 17 years, and 9 diseases have been found in the near future and 5 have been maintained.

Wuhan Rail Transit Bridge Health Monitoring System Management Platform shows Wuhan Rail Transit Line 1. Reporter Wan Ling Photo

Hu Junliang told reporters that the system was installed with a Beidou receiver on the viaduct vault, which sampled 10 times per second to monitor the three -dimensional deformation of the viaduct in real time. The bridge deck is equipped with high -definition cameras and dynamic deflection instruments. HD cameras can identify high bridge diseases. The dynamic deflection meter is used to monitor the jitter of the viaduct. 300 high -definition pictures can be taken per second. It can automatically identify the slightly slightly jitter of the 0.02 mm range of the viaduct. Once the value is close to the limit, it will be warned, and the bridge engineer will analyze the risk in a timely manner.

The related values ​​from Huangpu Road Station to Tou -Tao Street Station Viagra of Wuhan Rail Transit Line 1 fluctuate within the scope of safety. Reporter Wan Ling Photo

It is understood that this dynamic deflection is independently developed by the China Railway Bridge Science Research Institute. The relevant R & D plan project has passed the national review and is at a leading level in China. It can be widely used in the fields of bridges, tunnels, transmission towers, real estate and other fields in the future.

(Changjiang Daily reporter Wan Ling Correspondent Li Fangjun Fu Li)

【Edit: Zheng Xiaoxiao】

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