Analysis  of  the  dynamic  response  about  t-beam bridge with multi-ribbed slabs in  consideration of  shear  lag  effect

PDF(1036 KB)

Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (9) : 166-171.

论文

Analysis of the dynamic response about t-beam bridge with multi-ribbed slabs in consideration of shear lag effect

GAN Ya-nan ，gou yong, ZHOU Guang-chun

Author information +

History +

Abstract

proposes an approach of analyzing the dynamic response of T-beam with multi-ribbed slabs generally used in engineering, in consideration of the shear deformation, shear lag effect, self-equilibrium condition for shear lag warping stress, and many different longitudinal displacement difference functions to accurately reflect the amplitude of change of shear lag in the T-beam with multi-ribbed slabs. The differential equations and the corresponding natural boundary conditions of the T-beam with multi-ribbed slabs are induced based on the minimum potential principle, and closed-form solutions of generalized dynamic displacements are obtained. According to the fundamental differential equations and the corresponding natural boundary conditions, the dynamic characteristics of T-beam with multi-ribbed slabs are discussed. The calculation examples compare the finite solid element solutions with the analytical solutions and verify the validity of the proposed approach, the formulas obtained in this study develop the shear lag theory.

Key words

T-beam with multi-ribbed slabs / shear lag effect / dynamic response / self-equilibrium condition / energy-variation principle

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

GAN Ya-nan;gou yong;ZHOU Guang-chun . Analysis of the dynamic response about t-beam bridge with multi-ribbed slabs in consideration of shear lag effect[J]. Journal of Vibration and Shock, 2012, 31(9): 166-171