This paper describes the numerical modelling of post-tensioned timber systems under nonlinear dynamic and static loading in order to predict the dynamic behaviour of Pres-Lam timber frames with and without the addition of dissipative steel angles. Pres-Lam technology enables the design of wooden buildings having large bay lengths (8-12m) and reduced structural sections combining the use of unbonded post-tensioned steel elements and large engineered timber members. In order to investigate the seismic behaviour of this innovative method of construction, a series of shaking table tests have been performed on a 3-D, 2/3rd scaled, 3-storey Pres-Lam structure in the Structural laboratory of the University of Basilicata, Potenza, Italy. These are designed to yield at a certain level of drift and are economical and simple to design and use [1]. This paper proves the adequacy of the use of two numerical modelling programs (SAP2000 and CDS-Opensees) in order to provide an accurate representation of the experimental response.
Nonlinear Numerical Modelling of Post-tensioned Timber Framed Buildings in CDS-OpenSees
PONZO, Felice Carlo;SIMONETTI, MICHELE MASSIMO;DI CESARE, ANTONIO;NIGRO, Domenico Salvatore;
2015-01-01
Abstract
This paper describes the numerical modelling of post-tensioned timber systems under nonlinear dynamic and static loading in order to predict the dynamic behaviour of Pres-Lam timber frames with and without the addition of dissipative steel angles. Pres-Lam technology enables the design of wooden buildings having large bay lengths (8-12m) and reduced structural sections combining the use of unbonded post-tensioned steel elements and large engineered timber members. In order to investigate the seismic behaviour of this innovative method of construction, a series of shaking table tests have been performed on a 3-D, 2/3rd scaled, 3-storey Pres-Lam structure in the Structural laboratory of the University of Basilicata, Potenza, Italy. These are designed to yield at a certain level of drift and are economical and simple to design and use [1]. This paper proves the adequacy of the use of two numerical modelling programs (SAP2000 and CDS-Opensees) in order to provide an accurate representation of the experimental response.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
