Strongwell Corporation has introduced its Gridform Design Guide to assist bridge engineers in determining if Gridform is a better alternative for reinforced concrete bridge decks.
The guide has been developed in conjunction the University of Wisconsin-Madison School of Engineering, to demonstrate how Gridform can be used as an alternative to steel rebar as the internal reinforcement system for concrete bridge decks.
Engineers can enter the bridge’s specific load requirements and properties and the guide will provide design results for a Gridform reinforced bridge deck.
Strongwell’s Gridform is a prefabricated fibre reinforced polymer (FRP) double-layer grating grid system with an FRP plate bonded to the bottom grating layer as an integral stay-in-place (SIP) form.
According to Strongwell, the most common reasons for degradation of the typical steel reinforcement in concrete bridges is caused by corrosion due to de-icing salts and harsh environments. Because of this, developers say the anticipated lifespan of a Gridform bridge deck is several times that of steel reinforced concrete bridge decks.
Gridform comes in large prefabricated panels that can be lifted and set with a single pick of a crane, which in most cases can provide a significant reduction in construction time of the bridge deck.
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