Interim support system of arch rib bridge girder construction

The utility model discloses an interim support system of arch rib bridge girder construction, arch rib bridge have two main pier and two side block, the girder of arch rib bridge is five room prestressed concrete continuous variable cross -section box girder structure in the single case, main pier includes the rectangle cushion cap, vertically establishes four case beam supports on the up end of the middle part of cushion cap and establish the basic clump of piles under the cushion cap, no. 0 fixed piece case roof beam on the top of case beam supports. Interim support system establishes on main pier's cushion cap and includes 20 six roots of sensation pier studs, and the cushion cap at main pier is built in order longitudinally to line up two rows of modes that lie in case beam supports'sboth sides symmetrically to this 20 six roots of sensation pier stud, a branch of prestress wire is worn to put for reinforced concrete square column and center by every pier stud, and the direct anchor of prestress wire is p