Research on Reasonable Side to Mid-span Ratio of Composite Beam Cable-stayed Bridges
Composite beam cable-stayed bridges have been widely used in recent years due to their lighter self weight and greater crossing capacity compared to concrete bridges.The side to mid-span ratio is an important parameter in the design of cable-stayed bridges,and different side to span ratios have a significant impact on the stiffness,internal forces,and other aspects of the structure.This paper takes a 420 m composite beam cable-stayed bridge as an example,establishes multiple finite element models,analyzes and explores the effects of different side to span ratios on the main beam,cables,bridge towers,and other components of the cable-stayed bridge,and obtains a reasonable side to span ratio for the composite beam cable-stayed bridge.This paper has certain guiding significance for practical engineering design.
composite beamcable-stayed bridgeside to mid-span ratiostiffnessstress
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