2010•Journal of Henan University of Urban ConstructionRequires access
On design parameters of tied arch bridge
Hui Liu
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Abstract
In order to explicitly specify the force characteristics of tied arch bridge,we selected two parameters such as rise-span ratio of arch axis,beam-arch stiffness ratio to investigate its impact law upon structural mechanical properties.The analysis shows that when the beam-arch stiffness ratio varied between 30 to 85,the rate of decreases is relatively large when internal force value of the arch rib increases with the beam stiffness;when beam-arch stiffness ratio varies between 90～105,the rate of decreases is relatively flat when internal force value of the arch rib increases with the beam stiffness.For the arc-shaped rib,when the beam-arch stiffness ratio becomes comparatively small,this value between 0.24～0.29 is more reasonable.