Study of Pedestrian Bridge with Flying Swallow–Shaped Arch Rib and Stayed-Cable System

According to the design requirements of the pedestrian gallery bridge in a river park, a specific design of a landscape bridge with cable-stayed arch ribs in the shape of flying swallow and the saddle-shaped roof is proposed. Its orthographic projection is ellipse in. And the side elevation of arch ribs is flying-swallow shape with its tail curled up. The top of the bridge is transparent glass with hyperbolic paraboloid surface. Special-shaped spatially curved steel pipes are adopted for the flying-swallow type cable-stayed arch ribs. The bridge deck adopts elliptical plate beam structure, the curvilinear shape of which has unique aesthetic value. On the basis of practical project, parameter design, Midas finite element model, internal force calculation and modal analysis are carried out to verify the structural rationality of the bridge designed.