›› 2005, Vol. 26 ›› Issue (4): 553-557.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Elastoplastic basis of geotechnical engineering reinforcement analysis

YANG Qiang, CHEN Xin, ZHOU Wei-yuan   

  1. Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2003-12-22 Online:2005-04-09 Published:2013-12-19

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Abstract: This paper focuses on properties of unbalanced forces in 3D elastoplastic calculation. The relationship among unbalanced forces, reinforced force and structural stability is established. In fact, the iteration procedure of elastoplastic calculation is a procedure of gradually elimination of unbalanced forces. It is revealed that a structure is stable if loading it with a reinforced force which is the same as the unbalanced force but with opposite direction; and therefore unbalanced forces can be used to guide reinforcement analysis. Furthermore, it was shown that the elastoplastic theory always minimizes unbalanced force or reinforced force in the sense of the minimum complementary energy principle of transferred force and superior limit theorem of reinforced force, and such a reinforced force is more safer than the actual one. Case study for an arch dam shows that the distribution of unbalanced force is helpful to evaluate the structural stability and reinforcement.

Key words: unbalanced force, elastoplasticity, reinforcement

CLC Number: 

  • TU 443
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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