The West Extension of Chang An Street over the Yongding River Bridge, a magnificent steel-structured double-tower cable-stayed bridge, is not only another splendid chapter in Beijing's urban construction but also an outstanding representative of China's bridge engineering technology. Its unique structural features, massive length, meticulous construction time planning, and extended service life all reflect human's endless pursuit of engineering technology and eager expectation for a better life.
Structural Features:
The West Extension of Chang An Street over the Yongding River Bridge features a double-tower cable-stayed design that gives it a sense of modernity and power. The main body of the bridge is made entirely of steel, from the beam to the two sloping towers, ensuring both durability and lightness. This design significantly reduces the weight of the bridge and enhances its load capacity. At the same time, the welding and high-strength bolt connection technologies used in the bridge reflect the exquisite craftsmanship of modern bridge engineering.
Length:
As the largest and most challenging river crossing bridge in Beijing, the West Extension of Chang An Street over the Yongding River Bridge has an astonishing length of 1354 meters. With a main bridge length of 639 meters and a main span of 280 meters, this number is first-rate in Beijing and even nationwide. The bridge's massive scale not only provides great convenience for urban transportation but also becomes a beautiful landscape in the city.
Construction Time:
The construction time planning of the West Extension of Chang An Street over the Yongding River Bridge is meticulous and well-organized. Starting from the summer of 2016 to the completion of the first section lifting of the main steel tower at the end of last year, every step was strictly carried out according to the project schedule. The overall inclined tower is expected to be connected by the end of 2018, and the bridge will be fully completed soon. The construction time planning of this bridge fully considers factors such as project quality, construction safety, and environmental protection to ensure the smooth and high-quality completion of the project.
Service Life:
The designed service life of the West Extension of Chang An Street over the Yongding River Bridge is up to 100 years, reflecting not only the durability of the bridge but also humanity's deep understanding and pursuit of sustainable development. In the design and construction process of this bridge, various factors such as material selection, structural layout, and construction technology were fully considered to ensure that the bridge can withstand various natural and human factors in its future use, providing a strong guarantee for the long-term development of the city.