Abstract: A design method for the reinforcement-steel area in a concrete section with a generic shape is proposed. The section is subjected to axial load and biaxial bending. The materials are assumed to be nonlienar elastic. The ...

Abstract: The analysis and design of composite beams prestressed by external tendons involves difficulties mainly related to the cable slip at the saddle points and to the construction sequences. The paper presents a model for ...

Abstract: The problem of a beam prestessed by means of a stretched cable slipping along a path rigidly linked to the beam is analyzed in a more general and unitary way than in previous formulations by considering nonlinear materials ...

Abstract: This paper presents a finite element model for the nonlinear analysis of beams prestressed by external slipping cables. The formulation involves composite beams with deformable shear connection; the simpler kinematical ...

Abstract: The flexural strength of externally prestressed beams depends on the tendon stress at failure. If the tendon is free to slip at the deviators its stress will depend on the global deformation of the whole structure. Thus ...

Abstract: The analysis of beams prestressed by external slipping tendons involves various difficulties related to the coupling between the local strain of the tendons and the global deformation of the beam. The structural behavior ...

Abstract: A 142-m, three-span continuous footbridge over the Esino River (Italy) is considered as a case study to illustrate a number of challenging aspects in its static and dynamic design. The adoption of an optimized steel deck ...