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Correlation Between Bridge Vibration and Bridge Deck Cracking: A Qualitative Study; Special rept
| 题名： | Correlation Between Bridge Vibration and Bridge Deck Cracking: A Qualitative Study; Special rept |
| 作者： | Alampalli, S. |
| 关键词： | Bridges(Structures); Structural analysis; Vibration; Bridge decks; Cracking(Fracturing); Traffic volume; Surveys; Reinforced concrete; Statistical analysis; New York; Correlation; Bearings |
| 摘要： | In recent years, many New York State bridge engineers have suspected that bridge vibration induced by vehicular traffic significantly influenced deck cracking. Several remedial measures were considered, including modifying the deflection criteria recommended by AASHTO bridge design standards, which would have had a major impact on construction costs. The New York State Department of Transportation initiated a research project to systematically study the possible correlation between bridge deck cracking and bridge vibration. Vibration and cracking severities of most steel girder bridges with concrete decks, built in New York between 19990 and 1997 were obtained through a statewide survey and field inspection. Data were analyzed using statistical methods. Results indicate a strong correlation between bridge vibration and deck cracking. A recommendation to further study this relation, using quantitative data was made. Since this is an observational study, these correlations do not imply that bridge vibration is the primary cause of the bridge deck cracking. |
| 总页数： | 54p |
| 报告类型： | 科技报告 |
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