Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A new scheme for the seismic retrofit of multi-span simply supported bridges
There are two alternative strategies that a designer may adopt and combine when faced with the retrofitting of a bridge: (a) the increase in the capacity or (b) the reduction in the actions of the structure. In this article, a new scheme, based on the second strategy, is proposed for the retrofit of existing multi-span simply supported (MSSS) bridges. The reduction in the actions of the bridge was mainly achieved by utilising an external restraining system consisting of I-shaped steel piles driven in the backfill soil and a slab that is the pile-cap of the piles. The restraining system was preliminarily designed and assessed in an existing MSSS bridge system, whose deck slab was made continuous. The existing and the retrofitted bridge were analysed by means of non-linear dynamic time history analysis and their response was compared in terms of serviceability and earthquake resistance performance. The study showed that the retrofitting scheme enhanced effectively the earthquake resistance of the existing bridge.
A new scheme for the seismic retrofit of multi-span simply supported bridges
There are two alternative strategies that a designer may adopt and combine when faced with the retrofitting of a bridge: (a) the increase in the capacity or (b) the reduction in the actions of the structure. In this article, a new scheme, based on the second strategy, is proposed for the retrofit of existing multi-span simply supported (MSSS) bridges. The reduction in the actions of the bridge was mainly achieved by utilising an external restraining system consisting of I-shaped steel piles driven in the backfill soil and a slab that is the pile-cap of the piles. The restraining system was preliminarily designed and assessed in an existing MSSS bridge system, whose deck slab was made continuous. The existing and the retrofitted bridge were analysed by means of non-linear dynamic time history analysis and their response was compared in terms of serviceability and earthquake resistance performance. The study showed that the retrofitting scheme enhanced effectively the earthquake resistance of the existing bridge.
A new scheme for the seismic retrofit of multi-span simply supported bridges
Mitoulis, Stergios A. (Autor:in) / Tegos, Ioannis A. (Autor:in) / Stylianidis, Kosmas C. (Autor:in)
Structure and Infrastructure Engineering ; 9 ; 719-732
01.07.2013
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A new scheme for the seismic retrofit of multi-span simply supported bridges
| Online Contents | 2013
Seismic retrofit of simply supported bridges using shape memory alloys
| Online Contents | 2002
| BASE | 2018
Seismic performance of multi-span simply supported highway bridges having steel columns
| British Library Conference Proceedings | 1996
Seismic Fragility Analysis for Typical Multi-Span Simply Supported Railway Box Girder Bridges
| British Library Conference Proceedings | 2017