Safety Evaluation and Verification by Field Testing of Concrete Bridgesby Ayaho Miyamoto, Kobe Univ, Japan,
Manabu Fujii, Kobe Univ, Japan,
Abstract: This paper describes a method of safety evaluation of concrete bridges in service and the verification of the evaluated results by field tests. The field tests to evaluate structural safety were performed as static testing by test trucks for application to the System Identification Method, and also as dynamic loading test under forced vibration caused by falling mass for application to the Modal Analysis. Both of the safety factors for flexural and shear failures and the change of dynamic behavior are evaluated from the field tests. These results are verified through the ultimate load test carried out in field on the reinforced concrete main girders isolated by cutting off from the bridge system.
Subject Headings: Concrete bridges | Load tests | Bridge tests | Structural safety | Verification | Structural analysis | Dynamic loads
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