The structure form of the multi-pylon cable-stayed bridge is greatly different from that of conventional cable-stayed bridge with twin-pylon or single-pylon, which induces the mechanical behavior of multi-pylon cable-stayed bridge is also much different from that of cable-stayed bridge with twin-pylon or single-pylon. Combined with the Fanli Bridge in Yixing city of Jiangsu province, the load carrying performance of this type bridge is analyzed. The analytical results show that the internal force distribution pattern of main girder in this type cable-stayed bridge is different from that of in conventional cable-stayed bridge, also the internal force distribution pattern of both the different steel pylons in same bridge and the steel columns in same pylon are distinctive.
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