Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Structural analysis and design of Timber Light-Frame shear walls
The thesis aims at investigating the seismic performances of timber light-frame shear walls with focus on the contribution offered by the sheathing-to-framing connections in terms of energy dissipation and ductility. Numerical non-linear analyses under displacement-controlled loading conditions are carried out using an original parametric finite element (FE) model developed within the open-source software OpenSees (McKenna and Fenves, 2007) in order to allow the easy variation of some basic design variables affecting the overall racking capacity of the wall, namely: i) aspect ratio, ii) nails spacing, iii) number of vertical studs and iv) cross-section size of the framing elements. In fact, although many researches dealt with the in-plane behavior of a fully-anchored timber shear wall, few efforts have been spent so far to analyze the mechanical behavior and the energy dissipation attributable to the sheathing-to-framing connections that, with hold-down connections, represent the highest contribution in terms of a wall deformation. There are few parametric analyses that consider different wall configurations (Salenikovich, 2000; Salenikovich and Dolan, 2003; Dhonju et al., 2017) of a fully-anchored timber shear wall. Several experimental tests have demonstrated that the dissipative behavior of a shear wall is mainly influenced by its connections. Timber has, in general, a poor dissipative capacity and is a brittle material in bending and in tension, unless it is properly reinforced (Jorissen and Fragiacomo, 2011). Conversely, the steel connections ensure a good amount of energy dissipation and cyclic ductility notwithstanding their significant pinching, strength degradation and softening. This evidence is well reflected into many numerical models proposed in literature, where the non-linear wall response is related to the load-deformation relationships of the connections (Tuomi and McCutcheon, 1978; Gupta and Kuo, 1985; Gupta and Kuo, 1987). Observing the results of the sensitivity analyses and starting from the ...
Structural analysis and design of Timber Light-Frame shear walls
The thesis aims at investigating the seismic performances of timber light-frame shear walls with focus on the contribution offered by the sheathing-to-framing connections in terms of energy dissipation and ductility. Numerical non-linear analyses under displacement-controlled loading conditions are carried out using an original parametric finite element (FE) model developed within the open-source software OpenSees (McKenna and Fenves, 2007) in order to allow the easy variation of some basic design variables affecting the overall racking capacity of the wall, namely: i) aspect ratio, ii) nails spacing, iii) number of vertical studs and iv) cross-section size of the framing elements. In fact, although many researches dealt with the in-plane behavior of a fully-anchored timber shear wall, few efforts have been spent so far to analyze the mechanical behavior and the energy dissipation attributable to the sheathing-to-framing connections that, with hold-down connections, represent the highest contribution in terms of a wall deformation. There are few parametric analyses that consider different wall configurations (Salenikovich, 2000; Salenikovich and Dolan, 2003; Dhonju et al., 2017) of a fully-anchored timber shear wall. Several experimental tests have demonstrated that the dissipative behavior of a shear wall is mainly influenced by its connections. Timber has, in general, a poor dissipative capacity and is a brittle material in bending and in tension, unless it is properly reinforced (Jorissen and Fragiacomo, 2011). Conversely, the steel connections ensure a good amount of energy dissipation and cyclic ductility notwithstanding their significant pinching, strength degradation and softening. This evidence is well reflected into many numerical models proposed in literature, where the non-linear wall response is related to the load-deformation relationships of the connections (Tuomi and McCutcheon, 1978; Gupta and Kuo, 1985; Gupta and Kuo, 1987). Observing the results of the sensitivity analyses and starting from the ...
Structural analysis and design of Timber Light-Frame shear walls
DI GANGI, GIORGIA (Autor:in) / DI GANGI, Giorgia / MONTI, Giorgio / BONTEMPI, Franco
26.02.2019
Hochschulschrift
Elektronische Ressource
Englisch
DDC:
690
Analysis of fully anchored light-frame timber shear walls—elastic model
| British Library Online Contents | 2009
Analysis of fully anchored light-frame timber shear walls—elastic model
| Online Contents | 2009
Analysis of fully anchored light-frame timber shear walls—elastic model
| Online Contents | 2009
Analysis of fully anchored light-frame timber shear walls—elastic model
| Springer Verlag | 2009