Design and construction method of prestressed vierendeel truss arch

The invention discloses a design and construction method of a prestressed vierendeel truss arch. The design and construction method comprises the following steps of: according to the characteristics of topography and landform of vierendeel truss arch trusses and groove bodies of 2 #-3 # bent framed columns and the height of the bent frame columns, adopting a door opening type steel pipe support cast-in-place scheme, setting up a support with the clearance length of 34.66 m and the width of 7m, arranging four expanded foundations of which the size is 2.5 m * 2.5 m * 1.0 m along the water flow direction as a foundation for installing steel pipe piles, arranging two rows of the steel pipe piles in the direction perpendicular to the water flow direction, welding the ends of the steel pipe piles through steel plates with the thickness of 16 mm and the size of 850 mm * 850 mm, reinforcing and welding the ends of the steel plates through trapezoidal steel plates with the thickness of 16 mm, connecting the adjacent s