지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Because of financial and safety concerns, there are needs for more accurate prediction of bridge behavior. Underestimation of the bridge load carrying capacity can have serious economic consequences, as deficient bridges must be repaired or rehabilitated. Therefore, the knowledge of the actual bridge behavior under live load may lead to a more realistic calculation of the load carrying capacity and eventually this may allow for more bridges to remain in service with or without minor repairs. The presented research is focused on the reliability evaluation of the actual load carrying capacity of existing bridges based on the field testing. Seventeen existing bridges were tested under truck load to confirm their adequacy of reliability. The actual response of existing bridge structures under live load is measured. Reliability analysis is performed on the selected representative bridges designed in accordance with AASHTO codes for bridge component (girder). Bridges are first evaluated based on the code specified values and design resistance. However, after the field testing program, it is possible to apply the experimental results into the bridge reliability evaluation procedures. Therefore, the actual response of bridge structures, including unintentional composite action, partial fixity of supports, and contribution of nonstructural members are considered in the bridge reliability evaluation. The girder distribution factors obtained from the tests are also applied in the reliability calculation. The results indicate that the reliability indices of selected bridges can be significantly increased by reducing uncertainties without sacrificing the safety of structures, by including the result of field measurement data into calculation.
목차
Abstract
1. Introduction
2. Resistance Model
3. Reliability Analysis
4. Conclusion
References
참고문헌 (8)
참고문헌 신청
1. [단행본] - / 2013 / AASHTO LRFD Bridge Design Specifications / American Association of State Highway and Transportation Officials
2. [단행본] - / 2002 / AASHTO Standard Specifications for Highway Bridges / American Association of State Highway and Transportation Officials
3. [기타자료] - FHWA bridge programs material type of structure by state / 2009 / Federal Highway Administration
4. [학술지(정기간행물)] - Y.I. Kwon / 2009 / Service Life Prediction of CFRP bar for Concrete Reinforcement based on Accelerated degradation tests / J. Applied Reliability 9 (2) : 71 ~ 80
5. [학위논문] - J. Laman / 1995 / Fatigue Load Models for Girder Bridges / Ph.D / University of Michigan
2. [단행본] - / 2002 / AASHTO Standard Specifications for Highway Bridges / American Association of State Highway and Transportation Officials
3. [기타자료] - FHWA bridge programs material type of structure by state / 2009 / Federal Highway Administration
4. [학술지(정기간행물)] - Y.I. Kwon / 2009 / Service Life Prediction of CFRP bar for Concrete Reinforcement based on Accelerated degradation tests / J. Applied Reliability 9 (2) : 71 ~ 80
5. [학위논문] - J. Laman / 1995 / Fatigue Load Models for Girder Bridges / Ph.D / University of Michigan
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