The oversize span bridge usually adopts the suspension bridge as intensity of the steel wire, which makes materials, can perform well so as to enlarge the span.

• 超大跨径桥梁之一般采用悬挂结构，由于拉索的高强钢丝极限强度高，承受直接拉应力大，材料可完全发挥作用，因而跨径能增大。