Abstract:The main bridge of Yongjin Road Bridge in Anqing City is a three-span variable height continuous rigid-frame bridge. Its span combination is 81 m+148 m+81 m = 310 m. The overall linear shape of the bridge is a plane "S bend", which can achieve the effect of "straight and curved, complement each other". The main pier is a Y-shaped pier. Through the overall design of the bridge, the structural design and calculation of the main beam and main pier of the main bridge can not only effectively decrease the span of the main span, reduce the beam height at the main pier, improve the force of pier bottom section, but also make the integral shape elegant and graceful into the natural artistic conception of the broad lake under the premise of satisfying the navigation clearance, which can provide the relevant experience and reference for the design of similar bridges.
