|Table of Contents|

Ultimate Bearing Capacities of RC Beam Based on Timoshenko and Higher-order Shear Deformation Beam Theories(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年03期
Page:
67-73
Research Field:
Publishing date:
2011-09-20

Info

Title:
Ultimate Bearing Capacities of RC Beam Based on Timoshenko and Higher-order Shear Deformation Beam Theories
Author(s):
ZHANG Yun-peng1; 2;  DIAO Bo1; 2;  YE Ying-hua1; 2
1. Department of Civil Engineering, Beihang University, Beijing 100191, China; 2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, Guangdong, China
Keywords:
reinforced concrete;  Timoshenko beam theory;  high-order shear deformation beam theory;  ultimate bearing capacity;  nonlinear analysis
PACS:
TU312
DOI:
-
Abstract:
Based on Timoshenko and higher-order shear deformation beam theories respectively, a nonlinear analysis model with shear deformation considered reinforced concrete(RC)frame element was deduced. To take into account the height deformation of the given member after diagonal cracking, a correlation between transverse normal strain and shear strain was proposed. The constitutive model proposed by Stevens, et al was adopted to eliminate the cracks checking of concrete, which was mostly based on modified compression field theory. Simulations about pure bending tests and concentrated loading tests with and without stirrups were made to validate the ultimate bearing capacity of RC beam. The results show that the calculation results based on the two theories are both in good agreement with experimental data. Comparatively, it is better to use the section analysis model based on Timoshenko beam theory to increase accuracy and computational efficiency, and the convergence is better.

References:

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Last Update: 2011-09-20