An updated version of the ASCE benchmark on controlled cable-stayed bridges has been recently developed in the ANSYS framework. It includes new aspects in the relative transversal motion of the main girder with respect to the towers in the simulation of the stay cable dynamics with respect to the coupled motion of the main girder in the soil-structure interaction and the numerical formulation by assuming full geometric nonlinearities. Analyses are carried out in a multiple support framework in a time domain by using the earthquake records as collected from the benchmark original statement. The original benchmark configuration considered earthquake restrainers in the transverse direction. The proposed updated bridge model first reproduces this kinematic arrangement, and a new configuration with transversal releases is subsequently implemented. The control strategies consist of passive and decentralized semiactive systems working in the horizontal plane and are also those studied in a previous investigation for the original statement. When the devices are implemented in the transversal direction, the proposed schemes distinctively mitigate the transversal structural response of the bridge with reasonable efficiency. © 2013 American Society of Civil Engineers.

Extending the benchmark cable-stayed bridge for transverse response under seismic loading / Domaneschi, Marco; Martinelli, L.. - In: JOURNAL OF BRIDGE ENGINEERING. - ISSN 1084-0702. - 19:3(2014). [10.1061/(ASCE)BE.1943-5592.0000532]

Extending the benchmark cable-stayed bridge for transverse response under seismic loading

DOMANESCHI, MARCO;
2014

Abstract

An updated version of the ASCE benchmark on controlled cable-stayed bridges has been recently developed in the ANSYS framework. It includes new aspects in the relative transversal motion of the main girder with respect to the towers in the simulation of the stay cable dynamics with respect to the coupled motion of the main girder in the soil-structure interaction and the numerical formulation by assuming full geometric nonlinearities. Analyses are carried out in a multiple support framework in a time domain by using the earthquake records as collected from the benchmark original statement. The original benchmark configuration considered earthquake restrainers in the transverse direction. The proposed updated bridge model first reproduces this kinematic arrangement, and a new configuration with transversal releases is subsequently implemented. The control strategies consist of passive and decentralized semiactive systems working in the horizontal plane and are also those studied in a previous investigation for the original statement. When the devices are implemented in the transversal direction, the proposed schemes distinctively mitigate the transversal structural response of the bridge with reasonable efficiency. © 2013 American Society of Civil Engineers.
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/11583/2664604
 Attenzione

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