Cable stayed bridge and suspension bridge are two important structures. What are the similarities and differences of their basic stress principles? Which type

Cable stayed bridge and suspension bridge are two important structures. What are the similarities and differences of their basic stress principles? Which type

Cable stayed bridge: force analysis shows that the force on the left can be decomposed into a horizontal left force and a vertical down force; the same force on the right can be decomposed into a horizontal right force and a vertical down force; because the two forces are symmetrical, the horizontal left force and the horizontal right force cancel each other, \X0d suspension bridge: the upper structure of self anchored suspension bridge consists of four parts: main beam, main cable, suspender and main tower. The force transmission path is as follows: the weight of bridge deck, vehicle load and other vertical loads are transmitted to the main cable through suspender, the main cable bears tension, and the main cable is anchored at the beam end, Because the horizontal force of suspension bridge is related to the rise span ratio of the main cable, the horizontal force in the main beam can be adjusted by adjusting the rise span ratio. Generally speaking, when the span is large, the rise span ratio can be appropriately increased to reduce the pressure in the main beam. When the span is small, the rise span ratio can be appropriately reduced, Because the main cable is anchored on the top of the tower, in order to minimize the horizontal force on the main tower, it is necessary to ensure that the horizontal force in the side span main cable is basically equal to that generated by the middle span main cable, which can be adjusted by a reasonable span ratio or by changing the shape of the main cable