Design of Low-pylon cable-stayed bridge from view of Sunniberg bridge

Low-pylon cable-stayed bridge is spring up in resent years,which is a new bridge structure between girder bridge and conventional cable-stayed bridge,and its applicable span is between beam bridge and cable-stayed bridge.Combined with the design condition of a famous Low-pylon cable-stayed bridge in Switzerland named Sunniberg bridge,this paper analyzes the bridge type characteristics,forced characteristics and design points of Low-pylon cable-stayed bridge.