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Computers and Concrete
  Volume 15, Number 6, June 2015, pages 865-878
DOI: http://dx.doi.org/10.12989/cac.2015.15.6.865
 


Multiscale modeling for compressive strength of concrete columns with circular cross-section
Han-liang Wu and Yuan-feng Wang

 
Abstract
    In order to construct a multiscale model for the compressive strength of plain concrete columns with circular cross section subjected to central longitudinal compressive load, a column failure mechanism is proposed based on the theory of internal instability. Based on an energy analysis, the multiscale model is developed to describe the failure process and predict the column\'s compressive strength. Comparisons of the predicted results with experimental data show that the proposed multiscale model can accurately represent both the compressive strength of the concrete columns with circular cross section, and the effect of column size on its strength.
 
Key Words
    multiscale modeling; analytical solution; energy analysis; fracture mechanics; circular concrete columns; size effet
 
Address
Han-liang Wu: School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, PR China;
Bridge Technology Research Center, Research Institute of Highway, Ministry of Transportation, Beijing, 100088, P R China
Yuan-feng Wang: School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, PR China
 

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