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ע⣺ՓڡIIWW2004,36(12):1733-1735l
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(BWľˮWԺB 116024 )

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The Basic Differential Equation Deductive of the Self-anchored Suspension Bridge

SHI Lei ,ZHANG Zhe, LIU Chun-cheng
(Institute of Civil & Hydraulic Engineering, Dalian University of Technology,
Dalian, 116024)

Abstract: Based on the generalized potential energy variational principal of nonlinear elasticity theory with large deflection, the incomplete generalized potential energy function with large deflection is established based on the flexibility theory of three-span selfCanchored suspension bridge by considering the effect of axial compressive energy of stiffening girder. By constraint variation, the differential equations under flexibility theory is closed to the elastic theory vibration have been derived. It can provide theoretical basis for the static analysis of self-anchored suspension bridge
Keywords: Self-Anchored suspension bridge, flexibility theory, functional, generalized variation

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