PSC U Steel composite PSC truss U girder simple bridge and continous bridge

摘要

the present invention, a concrete lower flange (10), a pair of concrete upper flange 20, and a pair of concrete upper flange 20 and the concrete lower flange (10) sides respectively, U girder (40) including a pair of truss abdomen 30 for connection; In the end portions of the U-girder 40, the concrete lower flange (10), a pair of concrete upper flange 20, and a shift point poured concrete partition wall block (50) for connecting a pair of truss abdomen (30); Precast half deck 60 which is provided on the concrete upper flange (20); The concrete lower flange (10) of claim 1, 2, PS internal tension wire (W1, W2) to be installed therein; First and second external stress which is installed in the inner space portion of the U-girder (40) PS wire (W3, W4); It said first and second PS internal tension wire (W1, W2) a pair of first and second internal tension wire fixing PS block and the fixing part (71a, 71b) for fixing each of the; And a pair of first and second external tension PS wire fixing block diagram of, and the fixing section (73a, 73b) to the first fixation 1,2 outside tension PS wire (W3, W4), respectively, said first internal stress PS steel fixing block and the fixing portion (71a) is provided on both ends of a lower portion of the U-girder 40, a second internal stress PS wire fixing block and the fixing portion (71b) is spaced apart from both ends of the U-girder 40, the It is installed on a concrete lower flange (10), the first and second external tension PS wire fixing block and the fixing part (73a, 73b) is the installed and then down from both ends of the top of the U-girder 40, the first , two internal tension PS wire (W1, W2) is tension in the girders making section, the first and second external tension PS wire (W3, W4) is mounted on the U-girder 40 are alternately (1), wherein half precast deck (60) after the casting of slabs in the upper relates to a steel composite truss U PSC girder bridges are simply nervous. Through the present invention, a conventional steel composite PSC truss U girder than truss price jeombu, settlement blocks and fuser unit, saddle shape, it is possible to increase efficiency by improving the PC steel construction and nervous manner, the conventional PSC U girder and compared to reduce the amount of concrete girders reduce weight, reduce the amount of steel compared with steel box girder or steel girders, U can provide the effect of increasing the economic efficiency.