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Continued Long-Term Monitoring of HAM-42-0992 and HAM-126-0881L: Instrumentation, Testing and Monitoring of Reinforced Concrete Deck-on-Steel Girder Bridges. Final rept.
| 题名： | Continued Long-Term Monitoring of HAM-42-0992 and HAM-126-0881L: Instrumentation, Testing and Monitoring of Reinforced Concrete Deck-on-Steel Girder Bridges. Final rept. |
| 作者： | HELMICKI, A.; HUNT, V. |
| 关键词： | *Girder-bridges; *Monitoring-.;Bridges-Structures; Instrumentation-; Testing-; Sensors-; Nondestructive-tests; Reinforced-concretes; Stresses-; Diagnostics-; Structural-analysis; Research-. |
| 摘要： | The measurement and documentation of construction and service effects for a bridge will permit evaluation of the complete state of force in a bridge over its lifetime, together with the corresponding causative effects or events. A complete sensor suite, including a weigh-in-motion (WIM) roadway scale, was incorporated within the construction plans and drawings for two steel-stringer bridges, HAM-42 0992 and HAM-126-0881L, near Cincinnati, Ohio. Both bridges incorporate an integral abutment within their design and construction. The latter is a semicomposite bridge which represents a unique research opportunity in that it was designed with an unusually small span ratio (0.45). Accumulated versus transient stresses and forces will be evaluated by conducting long-term monitoring, diagnostic testing, and structural analysis to simulate different episodes of cause and effect in the construction and service stages of these bridges and correlating these with the recording data. This research will also allow: the conceptualization of less understood or unknown phenomena that influence bridge performance, the verification of design assumptions and rating models, and the continued evaluation of emerging technologies for infrastructure monitoring and evaluation. |
| 报告类型： | 科技报告 |
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