The Franklin Avenue Bridge’s original spandrels, deck, and railings were replaced during a major renovation in 1970. Degradation and changes in use led to the full replacement of the deck and spandrel cap beams during the summer of 2016. By coupling accelerated bridge construction techniques with prefabricated bridge elements and systems that included cap beams, deck panels, and ornamental rail panels, the replacement of the superstructure was completed during a 116-day closure.
In the second of a two-part series, materials engineer John Lawler and structural engineer Arne Johnson detail the structural analysis and accelerated bridge construction methods used to replace the deck.
This article is republished courtesy of the American Concrete Institute.
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