At present, the total number of modern Bridges in China exceeds 1 million, and Bridges across the sea and river bear a huge amount of passenger and freight transport. Because the bridge span is large, so because of weather, war and other reasons when the damage, can only be set up pontoon repair. Limited by hydrological conditions and other factors, the disadvantages of emergency repair of pontoon bridge are very obvious, among which the disadvantages of difficult operation and low traffic

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... directly limit the overall emergency repair progress. Therefore, the bridge bearing based on hydraulic control in this paper can control the adaptive bearing to actively compensate and adjust with the help of the rapid calculation of the calculation system without blocking the channel, so as to greatly improve the passage efficiency and reduce the cost of emergency repair.