Concrete structures are often composed of individually homogeneous beam members that exhibit different creep behaviors. This paper offers a method of analysis for such structures, whose configurations change repeatedly. Mathematical formulation of the problem leads to a coupled system of Volterra integral equations for each successive stage, requiring extensive and difficult calculus. The proposed method is based on a corollary of the theorem of virtual work, which allows a more simple evaluation of time-dependent displacements in viscoelastic heterogeneous structures. By imposing compatibility conditions at the delayed restraints, the general statement of the problem is presented. Subsequently, a highly versatile numerical algorithm emerges from the step-by-step numerical procedures of the general method. The proposed method is applied to three different types of structures realized in successive stages.


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  • Accession Number: 00674179
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 8 1995 12:00AM