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Deterioration Assessment and Rehabilitation Design of Existing Steel Bridge |
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| Authors: | Daniel N Farhey Razi Naghavi Alper Levi Aniruddha M Thakur Mark A Pickett Douglas K Nims A Emin Aktan |
| Affiliation: | 11Visiting Facu., Civ. and Envir. Engrg., Univ. of Cincinnati, Cincinnati, OH 45220-0071.
22Consulting Engr., Struct. Engrg. Services, Cincinnati, OH. 33Former PhD Student, Civ. and Envir. Engrg., Univ. of Cincinnati, Cincinnati, OH. 44Postdoctoral Res. Assoc., Mat. Sci. and Engrg., Univ. of Cincinnati, Cincinnati, OH. 55Assoc. Prof., Civ. Engrg., Univ. of Toledo, Toledo, OH 43606-3390. 66Assoc. Prof., Civ. Engrg., Univ. of Toledo, Toledo, OH. 77John Roebling Prof. of Infrastruct. Studies, Dir., Drexel Intelligent Infrastruct. and Transp. Safety Inst., Drexel Univ., Philadelphia, PA. |
| Abstract: | Diagnostic truck-load tests and microstructural analysis were applied for structural deterioration assessment of a steel truss bridge and its rehabilitation design. The feasibility and potential benefits of using advanced field experimental techniques within a structural-identification framework have been demonstrated. Experimental information, coupled with visual inspection, engineering experience, and intuition, increased the level of confidence in the results of the condition-assessment process, permitting a more rational and cost-effective rehabilitation design. Based on the condition assessment, a two-step rehabilitation is recommended for the bridge: Restoration for a safe service life of 5–7 years, and a subsequent effort for preservation beyond. |
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