One of the prominently important performances required for shear walls of wood-framed construction system should be to resist against the lateral forces generated by seismic events. This paper deals with numerical and analytical elastic models for sheathed shear walls. The models are based on the assumption of elastic load-slip relations for both sheathing-to-framing joints and hold-downs or angle brackets, considering only static loads. Both elastic model and analytical formula have been previously experimentally verified through full scale tests. A model suitable to predict the behavior of the wall with different geometry was developed by means of parametric studies. The influence of vertical loads are included in the models. In addition, the contributions of different components are estimated and a simplified formula is presented. The analytical models was amplified in order to deduce the stiffness matrix of a limber walls structure and to understand the teal distribution of horizontal loads between the walls: nowadays the wall stillness in fact is assumed linear proportional to wall length. A simplified wall numerical model was used in order to run clastic modal analysis of buildings. Copyright © (2012) by WCTE 2012 Committee.
Analytical and numerical analysis of timber framed shear walls
Casagrande, Daniele;Rossi, Simone;Sartori, Tiziano;Tomasi, Roberto
2012-01-01
Abstract
One of the prominently important performances required for shear walls of wood-framed construction system should be to resist against the lateral forces generated by seismic events. This paper deals with numerical and analytical elastic models for sheathed shear walls. The models are based on the assumption of elastic load-slip relations for both sheathing-to-framing joints and hold-downs or angle brackets, considering only static loads. Both elastic model and analytical formula have been previously experimentally verified through full scale tests. A model suitable to predict the behavior of the wall with different geometry was developed by means of parametric studies. The influence of vertical loads are included in the models. In addition, the contributions of different components are estimated and a simplified formula is presented. The analytical models was amplified in order to deduce the stiffness matrix of a limber walls structure and to understand the teal distribution of horizontal loads between the walls: nowadays the wall stillness in fact is assumed linear proportional to wall length. A simplified wall numerical model was used in order to run clastic modal analysis of buildings. Copyright © (2012) by WCTE 2012 Committee.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
