矮寨特大悬索大桥简介(国外英文资料).docVIP

矮寨特大悬索大桥简介(国外英文资料) A brief introduction to the bridge On March 31, 2012, four world no.1 nanhai bridge was opened to traffic today. Xiangxi aizhai suspension bridge is located in the hunan jishou aizhai town, changsha to chongqing highway tunnel jishou to tea hole control of highway engineering, bridge deck and the bottom vertical height difference of 330 meters, mainspan span 1176 meters, is the first tower suspension bridge beam separated, creatively adopts the new moving rail cable bridge erection technology for the installation of the main girder erection. The bridge is a control project of the jia-cha expressway, about 20 kilometers from jiaoji city, and over the grand canyon in 355 meters above the town of nanzhai. The main span of the bridge is 1176 meters, which is the largest steel girder bridge in the world. The main bridge is made of steel girder, the beam is 7.5 meters high, the beam width is 27 meters, the section beam is 14.5 meters long, the total bridge has 69 sections, the main beam is 1000.5 meters long. Because of the difficulty of the topography, the traffic is extremely inconvenient, and the bridge is built into a world-class problem. China famous bridge expert professor, Beijing university of technology, high character makes told the reporters, heavy aizhai suspension bridge and the four world first : mainspan 1176 meters, is a bridge across the canyon suspension bridge in the world; Second, it is the first time that the structural design of a completely separated tower and beam has been adopted. Third, the structure of rock anchor sling is used for the first time, and carbon fibre is used as the prestressed reinforcement, making the world the first. Four is the first use of the rail slip method to set up the steel girder, the first in the world. Was held on May 18, 2011 the aizhai bridge technology conference, more than a dozen domestic top experts on the bridge rail line slip method highly, agree that this is a by the independent research an