The main characteristics and key points of prestressed concrete tied steel pipe arch bridge construction, and the commonly used structure of prestressed concrete tied arch bridge, there are three ways, through, half through, and through. The through type is usually adopted, and the bridge can be normally navigable or passable during construction. As far as the main works are concerned, cast-in-place piles, cushion caps, main pier shafts, basin bearings, prestressed concrete tie bars, middle cross beams, steel pipe arches, suspenders