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A Computational Method for Evaluating Modular Prefabricated Structural Element for Rapid Construction of Facilities, Barriers, and Revetments to Resist Modern Conventional Weapons Effects

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Final rept. Mar 1985-Sep 1987,

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The primary purpose of this investigation is to study the behavior of reinforced concrete RC structural systems including beams, beam-columns, and slabs subjected to severe localized loads in both the static and dynamic domains. The approach is specifically aimed towards the development of reliable, accurate, and efficient approximate models for predicting the response of RC structural components in linear and nonlinear domains of behavior. The analytical procedure is based on accurate constitutive models for steel and concrete, principles of equilibrium and geometric compatibility, and rational failure criteria for the RC structural element. In the static domain, the analysis consist of the development of moment-curvature and load deformation relationships, including, the effects of shear stresses, axial thrust P-Delta effect, and boundary conditions. A modified model is presented for evaluating the influence of shear in reducing the flexural strength under static conditions. In the dynamic domain, an approximate evaluation of the response of RC members subjected to impulsive loads. Inelastic response, rate of loading, and the influence of boundary conditions are among the primary variables that are considered.

Subject Categories:

  • Laminates and Composite Materials
  • Structural Engineering and Building Technology
  • Explosions

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