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Some explicit solutions for flat and depressed masonry arches
| Content Provider | Semantic Scholar |
|---|---|
| Author | Aita, D. C. Hernandez Barsotti, Riccardo Bennati, Stefano |
| Copyright Year | 2003 |
| Abstract | Concerning the analysis of the mechanical behaviour of masonry arches, two main lines of theoretical investigation can be distinguished: the first regards arches as a system of rigid voussoirs subject to friction and unilateral constraints and attempts to evaluate the system' s distance from collapse conditions. The second, following instead a continuum mechanics approach and an «elastic» or «pseudo-elastic» logic, aims to determine the evolving stress and strain fields in the arch. Within this framework, the greatest difficulty has been modelling the behaviour of very complex materials, in particular, masonry. In fact, masonry, a heterogeneous, anisotropic material made up of blocks and some binding matrix, is characterised by sufficiently high resistance to compression, but low resistance to tension. The comprehensive constitutive laws able to provide detailed mathematical descriptions of the behaviour of such materials often prove to be extremely complex. Following the work of Signorini (1925b), who performed the first accurate studies of elastic material s incapable of withstanding significant tensile stresses, so me authors have pro po sed a non-linear elastic constitutive relation (Di Pasquale 1982, Del Piero 1989, Angelillo 1993). According to this view, masonry arches can be studied as one-dimensional, non-linear curved elastic beams, so that describing their mechanical behaviour becomes a matter of solving non-linear ordinary differential equations. In |
| Starting Page | 171 |
| Ending Page | 183 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.sedhc.es/biblioteca/actas/CIHC1_018_Aita%20D.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
