The Structural Engineer > Archive > Volume 57 (1979) > Issues > Issue 16 > The Deformation of Reinforced Concrete Beams and Frames up to Failure
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The Deformation of Reinforced Concrete Beams and Frames up to Failure

A beam-rotational spring model is presented for nonlinear analysis of reinforced concrete structures subjected to monotonically increased or reversed static loading. A beam or frame is treated as an assembly of beam elements. Each beam element has a bilinear hysteretic rotary spring at each end. The beam elements are assumed to remain elastic in bending along their length, but may undergo inelastic bilinear hysteretic axial deformation. M. Seniwongse