Extended deflection theories for live load analysis of self-anchored suspension bridges (SASB) involving regular or floating types of girders are derived employing both direct equilibrium method and an energy principle. Subsequently, a simplified FE formulation with hanger extensibility is presented to numerically solve the developed theories. To showcase the validity and precision of the present formulations, a typical SASB model is analyzed, with subsequent comparison of analysis outcomes against those derived from the unstrained length method (ULM). In particular, extensible/inextensible effects of hanger cables, boundary conditions of regular/floating girders, and initial camber effects are intensively investigated. Finally, the most suitable deflection theories for live load analysis of both regular and floating SASB are determined.
Extended Deflection Theories of Self-anchored Suspension Bridges with Extensible Hangers and Floating Girders
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 28 , 9 ; 3928-3940
2024-09-01
13 pages
Article (Journal)
Electronic Resource
English
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