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A platform for research: civil engineering, architecture and urbanism
Feasible Range for Midtower Lateral Stiffness in Three-Tower Suspension Bridges
This study investigates the structural characteristics of midtowers in three-tower suspension bridges and proposes a direct approach to determining feasible midtower stiffness for preliminary designs. The lateral stiffness analysis of bridges demonstrates the feasible midtower stiffness is located in a range that can be obtained using a simplified multispan suspension bridge model. This study also defines dimensionless midtower stiffness, and a parametric analysis is carried out in it to examine the effects of different parameters, including the sag-to-span ratio, side-to-main span ratio, dead-to-live load ratio, span length, and traffic load, on the range of dimensionless midtower stiffness. The results illustrate that the range of dimensionless midtower stiffness relies mainly on the dead-to-live load ratio and the sag-to-span ratio. The dimensionless stiffness chart derived from the study is generic and provides an estimate of the feasible midtower stiffness of three-tower suspension bridges with different design parameters.
Feasible Range for Midtower Lateral Stiffness in Three-Tower Suspension Bridges
This study investigates the structural characteristics of midtowers in three-tower suspension bridges and proposes a direct approach to determining feasible midtower stiffness for preliminary designs. The lateral stiffness analysis of bridges demonstrates the feasible midtower stiffness is located in a range that can be obtained using a simplified multispan suspension bridge model. This study also defines dimensionless midtower stiffness, and a parametric analysis is carried out in it to examine the effects of different parameters, including the sag-to-span ratio, side-to-main span ratio, dead-to-live load ratio, span length, and traffic load, on the range of dimensionless midtower stiffness. The results illustrate that the range of dimensionless midtower stiffness relies mainly on the dead-to-live load ratio and the sag-to-span ratio. The dimensionless stiffness chart derived from the study is generic and provides an estimate of the feasible midtower stiffness of three-tower suspension bridges with different design parameters.
Feasible Range for Midtower Lateral Stiffness in Three-Tower Suspension Bridges
Cao, Hongyou (author) / Qian, Xudong (author) / Zhou, Yunlai (author) / Chen, Zhijun (author) / Zhu, Hongping (author)
2017-12-18
Article (Journal)
Electronic Resource
Unknown
Feasible Range for Midtower Lateral Stiffness in Three-Tower Suspension Bridges
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