Design and Construction of a High-Angle Swivel for a Small-Radius Curve Ramp Bridge Over Railway on the Pingcheng Street West Extension Line in Datong City

Abstract

This paper presents the design and construction process of a 148° swivel for a curved bridge with a radius of 60 meters. Due to the small radius of the curved bridge, there is a significant imbalance moment during swivel. Therefore, in the structural design, measures such as pier-beam connection, installation of high-strength prestressed anchor rods, pre-eccentricity setting for the swivel structure, and filling of iron sand concrete inside the box beam at the top of the pier are adopted to balance the moment. Both the curve radius and the swivel angle of the bridge set world records for bridge swivel construction.

Keywords

curved bridge / swivel construction / railway bridge / real-time monitoring