Title :
Study of static and dynamic characteristics considering shear lag for curved box girder
Author_Institution :
Dept. of Civil Eng., Heilongjiang Inst. of Sci. & Technol., Harbin, China
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;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5774671
