Abstract: Softening of reinforced concrete sections at advanced curvatures in flexure is taken into account in collapse load analysis of frames. The analysis employs a trilinear elastic‐plastic‐softening approximation to real ...

Abstract: As the design process is refined, second‐order (stability) analysis becomes more important for both steel and concrete structures. Softening in concrete members, defined as the loss of moment capacity at advanced curvatures, ...