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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: 3-D Finite Element Analysis of Early-Age Bridge Deck Cracking
Author(s): W. Dekelbab, M.A.N. Hendriks, and R. Witasse
Publication: Special Publication
Appears on pages(s): 1295-1314
Keywords: concrete; concrete age; DIANA software; finite elements;heat of hydration; thermal stresses
Abstract:Early-age bridge deck cracking is the single most prevalent distress on bridges reported by all of the state DOTs. Although there have been many studies performed with regard to the cause of early-age deck cracking, the problem still exists. The early-age deck cracking due to restraint thermal stresses can be predicted using the 3-D finite element program DIANA. It simulates hydration of young concrete, shrinkage, and cracks due to the environmental conditions during the construction period and the restraint of the girders and adjacent structural elements. The analysis covers two stages. The first stage covers the construction period before the bridge is opened to traffic. The second stage starts after removing the formwork including just the bridge self-weight. Simulation results including time and crack initiation enable the understanding of cracking mechanism in young concrete as a first step to avoid early-age bridge deck cracking.
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