A diagrams shows how the truss is rolled over cables before eventually being raised into place by the green crane that is not shown here. Looking like a scene from the movie Avatar, the deep canyon dwarfs the north tower in the upper left. A test section was set up for the traveling bogies. The Aizhai Bridge (Chinese: 矮寨大桥) is a suspension bridge on the G65 Baotou–Maoming Expressway near Jishou, Hunan, China. The world's highest and longest tunnel-to-tunnel bridge has opened to traffic in Hunan province, central China. The Aizhai Bridge architects and engineers made bold innovations and created a highway bridge wonder. The widest part of the road is 7 meters and the vertical height is 440 meters. Due to its relatively remote location, the miao people still keep the simple traditional lifestyle. You can view a video here of the preparation to use a small blimp to take the first pilot line across. It takes its name from the nearby town of Aizhai … The yellow wheel bogies travel back to the cliff side staging area to carry another truss section out and the process repeats until the truss is completed. Image by www.smxxsy.com Aizhai Bridge therefore blends more naturally and beautifully into its surroundings. Aizhai bridge proposal 1 would have required an unusually long main span of 1,300 meters and a lengthy side span but both towers would have been short. Several designs were studied before they opted for a simple vertical, ground anchored suspender as shown in proposal 4. The bridge was built as part of an expressway from southwest China's Chongqing Municipality to Changsha. Unfortunately, over 200 people of them died of the accidents when building the road.

Based on the difficulties in empirical analysis (including the strategically located and difficult terrain, complex geological conditions, changeable weather and difficult transportation), the implementation of the programme was worked out. Proposal Q is very similar to the final design but with a slightly shorter main span of 1,128 meters. The 600 meter arch span would have been the world's largest. Aizhai Bridge (2012) Jishou, Hunan, China The Aizhai Bridge is a steel truss suspension bridge which was built near Jishou, Hunan Province as part of an expressway from southwest China’s Chongqing Municipality to Changsha. Proposal C would have had a main span of just 1,100 meters and is similar to the final design. The design may also have been modified as the wheel bogies roll over the blocks at the bottom of each suspender yet the diagram shows the truss below these blocks as well as being pulled along by cables attached to the truss. In the above view you can see the process where the suspended truss sections roll along horizontal cables connected to the vertical suspender cables. The large blue assemblies that hung from each group of suspenders. Proposal M would have had a main span of 1,228 meters but required a tower almost 200 meters high as well as an anchorage resting on a steep mountain slope. The wires are always grouped into hexagon shaped bundles that fit together within the larger main cable like the pieces to a puzzle. Firstly, the towers and beams are completely detached, which allows lesser excavation on the mountains, shortens the length of steel truss girder and reduce the construction cost. The Aizhai Bridge (Chinese: 矮寨大桥) is a suspension bridge on the G65 Baotou–Maoming Expressway near Jishou, Hunan, China. An early Aizhai computer rendering. The view from the north side with the short tower shows the taller south tower halfway complete on the far side of the canyon. One of the massive bogies especially designed to pull the suspended truss sections out over the gorge. Jishou City, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province, ChinaAizhai BridgeA highway bridge wonder in China, offering great views of Dehang Canyon and the Aizhai Winding RoadDeep into the mysterious West Hunan Province of central China, Aizhai Suspension Bridge is an outstanding modern structure and the most important project on the Jishou to Chadong expressway (part of Changsha to Chongqing expressway passage) to improve the traffic and optimize the transport system between Hunan and Chongqing.

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