TY - GEN
T1 - Comparisons of four time-dependent reliability approaches for safety assessment of deteriorated concrete bridges
AU - Lu, D. G.
AU - Fan, X. P.
AU - Jiang, W.
PY - 2012
Y1 - 2012
N2 - The reliability of existing reinforced concrete bridges is one of the world-wide concerned problems in the field of structural engineering. Reliability assessment for existing reinforced concrete structures can help make rational decisions to repair or demolition; moreover, it can also be directly applied to structural design. Based on the importance of reliability assessment, in this paper, firstly four computation methods of time-dependent reliability are studied in detail, which include time-integrated approach, time-discretized approach, time-discretized and integrated approach and first-passage probability approach; and then by analyzing the practical examples, the computational accuracy and shortcomings of the four methods are compared carefully; finally load probability models of the bridges are analyzed in detail, and based on the load probability models, the time-dependent reliability indices of the safety is solved with the four time-dependent methods about the flexural members of concrete continuous beam bridge, and the safety-based time-dependent reliability of the components has been evaluated.
AB - The reliability of existing reinforced concrete bridges is one of the world-wide concerned problems in the field of structural engineering. Reliability assessment for existing reinforced concrete structures can help make rational decisions to repair or demolition; moreover, it can also be directly applied to structural design. Based on the importance of reliability assessment, in this paper, firstly four computation methods of time-dependent reliability are studied in detail, which include time-integrated approach, time-discretized approach, time-discretized and integrated approach and first-passage probability approach; and then by analyzing the practical examples, the computational accuracy and shortcomings of the four methods are compared carefully; finally load probability models of the bridges are analyzed in detail, and based on the load probability models, the time-dependent reliability indices of the safety is solved with the four time-dependent methods about the flexural members of concrete continuous beam bridge, and the safety-based time-dependent reliability of the components has been evaluated.
UR - https://www.scopus.com/pages/publications/84863971037
U2 - 10.1201/b12352-517
DO - 10.1201/b12352-517
M3 - 会议稿件
AN - SCOPUS:84863971037
SN - 9780415621243
T3 - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
SP - 3442
EP - 3448
BT - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
PB - Taylor and Francis - Balkema
T2 - 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
Y2 - 8 July 2012 through 12 July 2012
ER -