Rehabilitation of elastomeric bearings

Rehabilitation of elastomeric bearings
March 4, 2020 lmk systems

HiSCS S.A. performed maintenance works aiming to rehabilitate the load path mechanisms of an old reinforced concrete bridge.

Poor construction techniques lead to the formation of gaps between the elastomeric bearing’s steel plates and the upper/lower plinth compromising the proper distribution of forces between the deck and the piers. Also, oxidation was detected on the bearing’s steel plates.

Since there was no evident failure at the rubber areas, indicating a decrease in bearing’s structural capacity, moderate maintenance solutions were chosen. Epoxy resin was injected in all evident voids and the steel surfaces were cleaned and re-painted.

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