City rail viaduct mountain type u support beam construction system and construction methods

The present invention discloses a support system construction and construction methods of urban light rail viaduct mountain type U beams, solves the problem of erection Full Framing supports the existence of large area and Zhou Zhuan materials occupy a long time problem. Included on the bearing table (12) is provided with four corners of steel columns, steel columns at the top (14) is provided with a falling sand box beam (16), disposed between the two beams falling flask transverse direction are transverse support beams (17), two transverse bridge with support is arranged between the beam (17) assigned longitudinal beam (18), are provided at both ends of the longitudinal distribution beam (18) has a cross section of a right triangle support frame (19) and cap bottom mold plate, on both sides of the top surface of the beam cap (20) is provided with a hill-shaped mold outer U bracket beam (21), the mountain-shaped U of the outer die holder beam (21) dispensing disposed between the longitudinal beams (18) and the outer most end of the bottom surface of mountain type template U bottom outer support beam (22). Improve construction efficiency, increasing the assembly accuracy.