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Journal of Central South University

, Volume 18, Issue 5, pp 1685–1692 | Cite as

Comparison on construction of strut-and-tie models for reinforced concrete deep beams

  • Yi-ke Qiu (仇一颗)
  • Xia Liu (刘霞)Email author
Article
  • 311 Downloads

Abstract

With consideration of the differences between concrete and steel, three solutions using genetic evolutionary structural optimization algorithm were presented to automatically develop optimal strut-and-tie model for deep beams. In the finite element analysis of the first method, the concrete and steel rebar are modeled by a plane element and a bar element, respectively. In the second method, the concrete and steel are assigned to two different plane elements, whereas in the third method only one kind of plane element is used with no consideration of the differences of the two materials. A simply supported beam under two point loads was presented as an example to verify the validity of the three proposed methods. The results indicate that all the three methods can generate optimal strut-and-tie models and the third algorithm has powerful capability in searching more optimal results with less computational effort. The effectiveness of the proposed algorithm III has also been demonstrated by other two examples.

Key words

reinforced concrete deep beam topology optimization strut-and-tie model genetic evolutionary structural optimization 

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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.School of Civil EngineeringHunan UniversityChangshaChina

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