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- W2388206316 abstract "The vibration frequency of box gird is usually calculated by the elementary beam theory,but it will lead to a large error because of the existence of shear lag effect and shear deformation.Based on energy variational principle,this paper proposes a new method to calculate the vibration of simply supported box gird,which includes the effect of shear lag and shear deformation,and the closed-form solutions to the natural frequencies are derived.It extends the usage of the methods of the past.Numerical examples show the analysis is feasible and the precision is improved greatly compared with the elementary beam theory.Finally,the effect of shear lag and shear deformation to the vibration of box girder is discussed.It is found that the natural frequencies of simply supported box girder decreases when the effects of shear lag or shear deformation is taken into account,especially in the high order frequencies' calculation,and the decrease is closely related to the width span ratio of the box gird." @default.
- W2388206316 created "2016-06-24" @default.
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- W2388206316 date "2007-01-01" @default.
- W2388206316 modified "2023-09-28" @default.
- W2388206316 title "A New Method to Calculate the Natural Frequencies of Simply Supported Box Girder Including the Effect of Shear Lag and Shear Deformation" @default.
- W2388206316 hasPublicationYear "2007" @default.
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