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An external restraining system for the seismic retrofit of existing bridges

Mitoulis, SA and Tegos, IA (2010) An external restraining system for the seismic retrofit of existing bridges 9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium, 6. pp. 5023-5032.

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An unconventional retrofitting measure is proposed for existing bridges, which has the ability to reduce the seismic actions. This is mainly achieved by an external restraining system consisting of IPE-steel piles driven in the existing backfill soil and a restraining slab. The slab interacts with the deck slab of the existing multi-span simply supported (MSSS) bridge system and transmits part of its seismic actions to the piles and therefore to the backfill soil, which has the ability to dissipate part of the induced seismic energy. The proposed unconventional restraining system was implemented and analytically assessed in an existing MSSS bridge system. The study showed that the unconventional restraining system has the ability to reduce effectively the actions and to enhance the earthquake resistance of the existing bridge.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Tegos, IA
Date : 2010
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:46
Last Modified : 24 Jan 2020 22:49

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