作者: Alberto Carpinteri , Andrea Carpinteri
DOI: 10.1061/(ASCE)0733-9445(1984)110:9(2073)
关键词: Beam (structure) 、 Constitutive equation 、 Shakedown 、 Slippage 、 Slip (materials science) 、 Materials science 、 Bending moment 、 Dissipative system 、 Linear elasticity 、 Structural engineering
摘要: A mechanical model for the cross section of a reinforced concrete beam is proposed. Attention focused on local phenomena relating to section, while element which belongs ignored. In particular fracturing mechanism and slippage yielding steel are considered, smeared damage not taken explicitly into account. Namely, rigid‐plastic constitutive law assumed steel, linear elastic one. Loading unloading processes bending moment range being lower than that crack extension. The phenomenon shake‐down due or plastic deformation bars studied. Up certain value an occurs; above this shakedown becomes elastic‐plastic hysteretic loop described by stressstrain diagram steel. Thus energy absorbed in such dissipative computed fo...