FINITE-ELEMENT NONLINEAR ANALYSIS OF STRESSED-ARCH FRAMES

This paper describes the nonlilnear analysis including the arch elements used, the implementation of plasticity, and the iteration strategies employed to solve the nonlinear problem, especially in the postultimate regime where snap-through may occur. The results of tension coupon tests, compression coupon tests, and residual stress measurements performed on a representative top chord section are reported. The ultimate strengths and load-versus-deflection behavior for the series panels show excellent agreement with the experimental results and justify the rigorous approach to both the experimental and theoretical aspects of the investigation.

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  • Accession Number: 00616224
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 31 1991 12:00AM