1,720,965 research outputs found
Bamboo as sustainable building material: state of the art for the use in european seismic areas
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Seismic Safety Of Artworks In Recycled Glass: Design Hypothesis for Beautifying the Passenger Terminal of Venice's Marco Polo Airport
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B.I.M. and Structural Modeling: Application on Cultural Heritage
No full textThe seismic safety of cultural heritage cannot be managed through the structural analysis only. First of all, the knowledge phase concerning construction technique and materials properties becomes strictly necessary. The Building Information Modeling (B.I.M.) is the concrete method allowing the peculiarities of the architectural/restoration design and the structural counterpart to be simultaneously contemplated. In fact, in the B.I.M. methodology for structures all the features of the virtual model are suitably contemplated.
In this paper, the B.I.M. for cultural heritage is dealt with, outlining its main steps (inspections, measurements and surveys, non-destructive investigations, integrated structural modeling and s.o.) and configuring the new B.I.M.4S&D methodology. The latter is shown through the application to a historic masonry building.
The numerical structural analysis of the existing masonry building is a relevant key since it must simulate what already exists and what arises from in-site testing and evaluation, avoiding falling into contradiction and trivial errors. Finite element method (FEM) is then used in the structural analysis for evaluating the safety of buildings subjected to static and seismic loads. The FEM method, in fact, is flexible and takes into account anisotropy and lack of homogeneity of masonry material. Furthermore, the finite element method lends itself to a more or less complex computerization, and it intrinsically has all the features interfaced with the digital geometric survey
Structural analysis of finite element models of masonry balconies and overhangs obtained by B.I.M.
No full textRecent news events are showing a widespread problem involving the structural safety of masonry balconies and overhangs. Not long ago it happened in Campania too: several pieces of balconies or overhangs broke away from the masonry walls and fell to the ground. The degradation phenomena, mostly due to weather, in addition to damage the surface layers of buildings facades, act, in fact, also on the balconies and overhangs structural stability.
The paper focuses on a thorough procedure aimed at evaluating the static and seismic safety of these components, based on structural analyses of refined finite elements models obtained by the building information modelling (B.I.M.) methodology. The analyses are performed creating a highly detailed numerical model: therefore, the structural B.I.M. model becomes the common basis on which to work for developing also, but not only, the structural analysis. This model, in fact, lets to achieve a perfect representation of geometry and structural consistency of each examined element, that is suitable for multiple purposes. As regards the static issues, the performed structural analysis allows to check how the behavior of masonry balconies and overhangs depends on the 3D behaviour and is linked to both the characteristics of the materials and the typology of the connection with the masonry walls
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