Analytical formulation of the temperature‐induced deformation of multispan suspension bridges
Yi Zhou, Yong Xia, Zhen Sun, Yozo Fujino
Abstract
This study proposes analytical formulas of the temperature-induced displacements that can be applied to general suspension bridges with any number of spans. The analytical formulas take account of the tower lateral stiffness and the elastic deformation of cables caused by the tension changes, which have not been studied in previous studies. The derived formulas are validated by the field monitoring data of the four-span Maanshan Yangtze River Bridge. A succinct unified one-dimensional formula is further derived for practical use. This study enables engineers to better understand the behaviour of suspension bridges and to predict the thermal deformation in a simple, generalized way.
Topics & Concepts
Suspension (topology)Bridge (graph theory)Deformation (meteorology)Tension (geology)StiffnessTowerStructural engineeringSpan (engineering)Simple (philosophy)MechanicsEngineeringMaterials scienceMathematicsClassical mechanicsPhysicsComposite materialMoment (physics)Pure mathematicsInternal medicineMedicinePhilosophyEpistemologyHomotopyStructural Engineering and Vibration AnalysisStructural Health Monitoring TechniquesFluid Dynamics and Vibration Analysis