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Full-range analysis methods are becoming popular in design of reinforced concrete structures. These methods require a knowledge of the behaviour of plastic hinges up to advanced curvatures. Concrete sections characteristically soften beyond the plastic phase. To analyse a strain-softening...
Nonlinear large amplitude random vibration of cantilever beam with lumped mass and rotary inertia under zero mean, stationary, Gaussian random base excitation is studied, using the inextensional beam theory. Single-mode approximation is employed to discretize the Lagrange's equation. The...
This paper reports an investigation into the buckling of frames with braces whose stiffness is insufficient to prevent sway buckling. Formulae are presented to calculate the effective column length for these weakly braced frames. Threshold stiffness values for the braces are obtained which are...
Department of Civil and Environmental Engineering, University of Missouri-Columbia, Columbia MO 65211–2200, U.S.A. The effects of strain rate on the mechanical properties of carbon steel and plain concrete are investigated through a rate-dependent elasto-plasticity model and rate-dependent...
Micro-cracks in the vicinity of paste-aggregate interfaces and in the paste itself can be induced when concrete is exposed to elevated temperatures in the range 100°C-300°C. Although with increase of temperature, the strength of concrete becomes more and more influenced by the growing number of...
Based on the continuum tangent stiffness tensors derived in part one for steel and concrete, bifurcation analyses of rate-dependent elasto-plasticity and elasto-damage are performed in (-(and (-(spaces of Mohr, respectively. Localization ellipse osculating Mohr's circle enables us to determine...
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