The ASCE benchmark on cable-stayed bridges has gathered, in the last years, the interest of many specialists in the field of the structural control and the dynamic response of long span bridges. Starting from the structural model of the benchmark original statement, a refined version is developed in a commercial finite element environment (ANSYS) so as to include new aspects in the simulation of the stay cables dynamics, with respect to the coupled motion with the main girder, in the implementation of the seismic excitation and in the soil-structure interaction. Analyses are carried out in the time domain for several realizations of acceleration in a multiple support framework. Finally, a new passive device, adopting the Bouc-Wen model as its constitutive law, is implemented on the refined bridge version both for a comparison with the ANSYS hysteretic element and for a better simulation of the control devices. This new device is coded in an external Fortran program and details on the implementations and testing are given in a parallel paper of this Conference.

Seismic mitigation of the ASCE cable-stayed bridge / Domaneschi, Marco; Martinelli, L.. - (2010), pp. 298-299. (Intervento presentato al convegno 34th International Symposium on Bridge and Structural Engineering: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas; tenutosi a Venice; Italy; nel 22 September 2010 through 24 September 2010;).

Seismic mitigation of the ASCE cable-stayed bridge

DOMANESCHI, MARCO;
2010

Abstract

The ASCE benchmark on cable-stayed bridges has gathered, in the last years, the interest of many specialists in the field of the structural control and the dynamic response of long span bridges. Starting from the structural model of the benchmark original statement, a refined version is developed in a commercial finite element environment (ANSYS) so as to include new aspects in the simulation of the stay cables dynamics, with respect to the coupled motion with the main girder, in the implementation of the seismic excitation and in the soil-structure interaction. Analyses are carried out in the time domain for several realizations of acceleration in a multiple support framework. Finally, a new passive device, adopting the Bouc-Wen model as its constitutive law, is implemented on the refined bridge version both for a comparison with the ANSYS hysteretic element and for a better simulation of the control devices. This new device is coded in an external Fortran program and details on the implementations and testing are given in a parallel paper of this Conference.
2010
978-385748122-2
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2664473
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo