A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic response of a damaging masonry wall
A nonlocal damage-plastic model is adopted to describe the nonlinear structural response of masonry structures. The model, based on a macromechanical approach, accounts for strength and stiffness degradation with hysteretic dissipation typically characterizing the masonry response, when it is subjected to horizontal loads. The stiffness recovery due to the crack closure, under cyclic loading, is also introduced by defining two different scalar damage variables for prevailing tensile and compressive states. To explore the effect of such nonlinear phenomena on the masonry structural response, the behavior of an unreinforced slender wall is investigated in the dynamic field. Special attention is devoted to the analysis of the wall frequency response curves (FRCs), obtained by imposing base harmonic accelerations with slowly time-variable frequency. These curves highlight the complexity of the dynamic phenomenon: due to the stiffness decay exhibited by the wall, a continuous variation of its natural frequencies occurs,which in turn modifies the resonance conditions. Finally, the wall response results strongly path-dependent and the characteristics of the wall restoring force lead to multi-valued FRCs.
Dynamic response of a damaging masonry wall
A nonlocal damage-plastic model is adopted to describe the nonlinear structural response of masonry structures. The model, based on a macromechanical approach, accounts for strength and stiffness degradation with hysteretic dissipation typically characterizing the masonry response, when it is subjected to horizontal loads. The stiffness recovery due to the crack closure, under cyclic loading, is also introduced by defining two different scalar damage variables for prevailing tensile and compressive states. To explore the effect of such nonlinear phenomena on the masonry structural response, the behavior of an unreinforced slender wall is investigated in the dynamic field. Special attention is devoted to the analysis of the wall frequency response curves (FRCs), obtained by imposing base harmonic accelerations with slowly time-variable frequency. These curves highlight the complexity of the dynamic phenomenon: due to the stiffness decay exhibited by the wall, a continuous variation of its natural frequencies occurs,which in turn modifies the resonance conditions. Finally, the wall response results strongly path-dependent and the characteristics of the wall restoring force lead to multi-valued FRCs.
Dynamic response of a damaging masonry wall
Daniela Addessi (author) / Cristina Gatta (author) / Fabrizio Vestroni (author) / Addessi, Daniela / Gatta, Cristina / Vestroni, Fabrizio
2017-01-01
Conference paper
Electronic Resource
English
DDC:
621
Masonry nonlinear response: modeling and analysis of the effects of damaging mechanisms
| BASE | 2019
Dynamic response of thin masonry wall under explosion effect
| British Library Conference Proceedings | 2002
Lessons learned from damaging interactions between masonry facades and building structures
| British Library Conference Proceedings | 1998
Dynamic Response of Masonry Wall Subjected to Soft Impact Load
| British Library Conference Proceedings | 1998
Masonry reinforcing structure, masonry wall and construction method of masonry wall
| European Patent Office | 2023