THIN-WALLED CURVED BEAMS. I: FORMULATION OF NONLINEAR EQUATIONS

Although curved girder systems are appropriate for highway bridges and interchanges, their use has been limited due to the lack of information on their complex structural behavior. The authors of this paper conduct a theoretical investigation of buckling and large displacement behavior of thin-walled circular beams. Equilibrium equations governing the linear, the bifurcation buckling, and the large displacement behavior are derived using the principle of total potential energy. An explicit and clear approximation of the curvature effect is produced in the derivation process. A series of fundamental nonlinear equations that describe the elastic behavior of thin-walled curved beams is presented. A companion paper demonstrates the rigor and validity of the present formulation.

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  • English

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  • Accession Number: 00669228
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 3 1994 12:00AM