Abstract:Aiming at the landscape design requirement of cable-stayed bridge, an egg-shaped arched pylon spatial-plane landscape cable-stayed bridge is proposed by using the mathematical equation of egg-shaped curve. Compared with the traditional parabolic arched pylon cable-stayed bridge, two arch legs of the egg-shaped arch bridge are closed, which reduces the size of the foundation, the top is wide, and three-dimensional spatial cables are distributed so that the landscape effect of the cable-stayed bridge is better. Combined with the actual project, the engineering parameters are designed. Midas finite element analysis model is established to carry out the static analysis and modal study. The result shows that the egg-shaped arched pylon spatial plane cable-stayed bridge has the good spatial structural stiffness.