During the construction of Wuhan Yangluo Yangtze River Bridge, great attention was paid to scientific and technological innovation. The construction headquarters has successively identified a number of scientific research topics and achieved fruitful scientific research results, which have been applied to construction practice one after another.
elegant scissor support Yangluo Bridge
The concrete main tower structure of Yangluo Yangtze River Bridge adopts a unique "scissors support" form, which is more novel and beautiful than the traditional H-shaped and portal main towers. The first adoption of steel diagonal braces for the main tower has changed the beam mode of domestic bridge towers and enriched the connotation of bridge landscape.
A new type of anchorage system with outstanding performance
Aiming at the problems of irreplaceability and durability of the anchorage prestressed anchorage system of suspension bridge, engineers and technicians have developed a new type of grease anticorrosion prestressed anchorage system with good durability, detectability, replacement, safety and reliability, and obtained national patents. The new anchorage system was first applied to engineering practice in China, and a new prestressed anchorage form of suspension bridge anchorage was explored.
The digital tube maintenance monitoring system always pays attention to the health of the bridge
The construction and long-term health monitoring of Yangluo Yangtze River Bridge adopts fiber grating sensing technology with independent intellectual property rights to monitor the stress in key positions of the bridge structure, as well as the cable force and vibration of the bridge. The fiber grating sensor can achieve the same life as the monitored object, which solves the problem that traditional monitoring methods can not monitor the bridge safety stably for a long time, provides a strong guarantee for the bridge construction safety, and also provides diagnostic means and scientific basis for the long-term running health of the bridge.
Large-tonnage damping device improves the seismic performance of the bridge
Yangluo Yangtze River Bridge adopts the largest tonnage compound damping device in China, which can greatly improve the seismic performance of the bridge, reduce the adverse impact of vibration on the main bridge structure and expansion joints under the live load of automobiles, and prolong the service life of the bridge.
solving the problem of double-layer epoxy asphalt
in view of the worldwide problem of asphalt concrete pavement on the steel deck of Yangluo Yangtze River Bridge, the headquarters cooperated with relevant universities to carry out special scientific research projects, and adopted the technical process of epoxy asphalt with high strength, high rigidity, strong deformation resistance and strong adhesion with steel plates for the first time in Hubei Province, striving to achieve a breakthrough in asphalt concrete pavement on the steel deck of Yangluo Yangtze River Bridge.
Reliable and safe power supply transmission system
The Yangluo Yangtze River Bridge adopted the medium-voltage power transmission system for the first time in Wuhan Bridge. The medium-voltage power transmission system adopts an appropriate 5.5kV power transmission voltage level, and establishes an independent system isolated from the power grid by means of neutral grounding. Through simple and reliable system protection and lighting control scheme, the power supply quality has been greatly improved. Compared with the traditional high-voltage and low-voltage power supply methods, its reliability, safety, advanced equipment and completeness have incomparable advantages.
dreamy landscape lighting
The landscape lighting of Yangluo Yangtze River Bridge is composed of floodlighting of the main tower facade, floodlighting of the whole bridge outline, floodlighting of slings, road lighting and intelligent control system. The functional lighting of the lighting system adopts variable power, which highlights the concept of energy saving. In addition, the whole bridge adopts omni-directional energy-saving landscape lighting system, and the new full-color color-changing LED changes the main colors such as red, yellow, blue and green to achieve a fantastic landscape effect.
It's still elegant after a hundred years
In order to cope with the air pollution and the increasingly complex external environment, the key concrete structures of Yangluo Yangtze River Bridge, such as the main tower and anchorage, are coated with silane anticorrosion, which makes their surfaces have excellent hydrophobicity while maintaining good air permeability of concrete. Anti-corrosion new clothes improve the structural quality and safety factor of the bridge and ensure its service life of more than 1 years.