Study of static and dynamic characteristics considering shear lag for curved box girder

Author

Li Changfeng

Author_Institution

Dept. of Civil Eng., Heilongjiang Inst. of Sci. & Technol., Harbin, China

fYear

2011

fDate

22-24 April 2011

Firstpage

749

Lastpage

752

Abstract

Based on warping torsion and energy principle, the statical and dynamical equation of considering the coupling of moment and torsion, difference of curvature radius with the width of girder and the transverse distribution of load are porposed in order to consider the effect of the shear lag and the element of the beam. It shows that it should not be ignored for the dynamic characteristics on the curved box which thinks of the effect of the shear lag. The analytical results has been validated by the finite element method SAP, which proved the validity of present approach.

Keywords

beams (structures); bridges (structures); finite element analysis; structural engineering; supports; vibrations; SAP finite element method; beam element; curved box girder; curved bridge structure; energy principle; load transverse distribution; shear lag effect; vibration frequency; warping torsion principle; Bridges; Couplings; Equations; Finite element methods; Flanges; Strain; Structural beams; curved box beam; the free vibration frequency; the shear lag; the static and the dynamic character the warping torsion;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5774671

Filename

5774671