Steel Global Net

Shibanpo Yangtze River Bridge double-track railway bridge the "world's first cross-" Lifting, has triggered national concern. Yesterday, the city began construction of a bridge to another world record challenge. "World first arch" Chaotianmen Yangtze River Bridge Arch closure, the lifting began.
     Is expected on the 22nd of this month, the main arch will achieve a dragon, a complete "Fei-Hong Yangtze River."
     United States Exploration (Discovery) channel "Chongqing trip" crew, but also to the camera Chaotianmen Yangtze River Bridge, the main arch of the full-track shooting.
     Lifting Steel Bore Cloudy
     Chaotianmen Yangtze River Bridge Arch total of 70 segments, North and South, the two sides of the 35 segments, for the final section of the north shore of Long, about 12 meters. The main arch span of 552 meters over the world-famous Arch Bridge - Sydney, Australia, the main arch span bridge to long, was described as the "world's first arch."
     Yesterday, reporters in the closing scene that the arch's surface in a huge semi-circular, "Jiang on the door," more magnificent.
     Bridge project of the engineer, design for the main arch steel truss arch, but the exposed steel structure fear most "hot up", especially for very sensitive sunlight exposure, high temperatures not conducive to normal working. Therefore, Steel Erection avoid the fine weather and chose a cloudy day lifting.
     Yesterday morning, Jiang's surface from the bridge more than 100 meters, the temperature measured only 3-5 ℃. In addition, the closure of the main arch is the highest point from underneath the surface up to 180 metres, the equivalent of 50 multi-storey buildings. Lower temperatures, higher height, have a great test of the construction.
     Crane extended fishing rope hoists steel components
     Closure of the six components of steel, divided into winding, and the ramp-bottom chords of three parts, each part two, weighing from 6 tons to 40 tons range. The first lifting of the steel component is a long paragraph in the most, about 40 tons.
     8:00 yesterday, boosted whirring sound chill, dozens of construction workers has long been ready, waiting for the lifting of the closure that moment.
     8:30, the ship carrying 40 tons of heavy steel components, from the shore into the river grass dam in the positioning Chuanpeng parked down, the main arch at the "gap." Added main arch of the crane beam from the Jiang-about 200 metres high, the metal crane extended fishing rope, firmly Shuanzhu steel components. "Lifting" walkie-talkie in the command staff came password, an enormous steel components began slowly rising.
     10:00, the first paragraph of a long steel components accurate "at all."
     Hoisting End on the 22nd day of Lung
     Department engineers on the project is expected in about two days, we will be able to complete a six-paragraph hoisting steel components. Debugging will be followed until the main arch of the south and north of cross-strait seamless docking, on the 22nd of this month, the main arch will be a long completion.
     Chaotianmen Yangtze River Bridge bridge closure is expected in June, will be the opening of the year, and track the traffic, "part of the line" in the "Link", and will through the abdominal bridge crossing the river. Bridge, upon completion, will conduct the deck coating, semi-circular arch to the main painting as "Red China."
     Currently, the North and the South Bridge Approach Road has also been started, the two ends of the Duishan Interchange, billiards stone interchange is under construction.
     Light rail vehicles can run Jiangbei City 10 minutes from the billiards Stone
     Chaotianmen Yangtze River Bridge on December 29, 2004 to commence at Chaotianmen terminal 1.7 kilometers from the Green River Gai Lan lawn. Chaotianmen Yangtze River Bridge is the main urban areas, "Jiang portal on the bridge" is currently the world's largest span of a three-span continuous steel truss Tied Arch Bridge, all planning for the length of 4.158 kilometers from the main bridge, the bridge approach of the South and the North. Chongqing main northbound from the shipyard, South obsessed angle to the three cotton-powered plants with a total length of 1,741 meters, the main bridge for the upper deck, "car from the sidewalk +" class "car + Rail Road" and "double passage" mode ; approach roads on both sides of the north Jiangbei Duishan Interchange, south-south bank of billiards and Huang Jue Bay Interchange Interchange.
     Bridge and planning in the two river tunnel together will Jiefangbei, Jiangbei City, billiards CBD constitute a three-dimensional transportation network. Chaotianmen Yangtze River Bridge design speed of 60 km / h, is the main east-west Rapid City a trunk. Completed after the opening of Jiangbei City to billiards-ride about 10 minutes.