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Concrete Cracking in New Bridge Decks and Overlays
| 题名： | Concrete Cracking in New Bridge Decks and Overlays |
| 作者： | Wan, B.; Foley, C.; Komp, J. |
| 关键词： | Bridge decks##Cracking (Fracturing)##Concrete overlays##Wisconsin##Inspections##Concrete shrinkage##Tensile stress##Finite element analysis## |
| 摘要： | There appears to be a trend for new bridge decks in the state of Wisconsin to develop early-age transverse cracks and map cracks on concrete overlays. A comprehensive literature review of the potential causes of concrete bridge deck cracking is provided. Fifteen bridge structures found in the recently completed Marquette Interchange were analyzed using 21 variables thought to cause early-age bridge deck cracking. Visual inspection of sixteen bridges in Milwaukee is described. The inspections show that the continuous superstructures have more cracks than the simply-supported bridges. A finite element model was created for a typical two-span continuous superstructure with HL-93 truck loads and concrete shrinkage-induced strains. |
| 总页数： | 154 |
| 报告类型： | 科技报告 |
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