作者: Apostolos Koukouselis , Euripidis Mistakidis
DOI: 10.12989/CAC.2015.15.3.391
关键词: Cross section (physics) 、 Stiffness matrix 、 Material properties 、 Materials science 、 Timoshenko beam theory 、 Prestressed concrete 、 Structural engineering 、 Nonlinear system 、 Finite element method 、 Displacement (vector)
摘要: The development of a finite element model for the geometric and material nonlinear analysis bonded prestressed concrete continuous beams is presented. effect introduced by coupling axial flexural fields. A layered approach applied so as to consider different properties across depth cross section. proposed method formulated based on Euler-Bernoulli beam theory. According total Lagrangian description, constructed stiffness matrix consists three components, namely, reflecting effect, large displacement effect. capable predicting behaviour over entire loading stage up failure. Some numerical examples are presented demonstrate validity applicability model.