TY - JOUR
T1 - A vibration-based approach for damage identification and monitoring of prefabricated beam bridges
AU - Han, Fei
AU - Dan, Danhui
AU - Xu, Zhaoyuan
AU - Deng, Zichen
N1 - Publisher Copyright:
© The Author(s) 2022.
PY - 2022/9
Y1 - 2022/9
N2 - As one of the most sophisticated structural types in rapid industrialized bridge construction technology, the fabricated beam bridge has been widely used in road network system for a long time. The prominent disease of this type of structure is the degradation of the lateral cooperative capability, that is, the deterioration of the hinge joint stiffness. This paper proposes a monitoring and evaluation method for the lateral connection stiffness based on the multiple-beams theory, which has the concise physical meanings and can be easily implemented. On this basis, a new damage identification method and index extracted from the mode shape information of the system is proposed in this paper. To verify the effectiveness of the proposed indicator ARCR, Shanghai Tongji Road viaduct is taken as the engineering background. Results shows that the theoretical analysis results are consistent with physical truth, the proposed indicator can reasonably reflect the degradation degree of the joint and locate the damaged joint.
AB - As one of the most sophisticated structural types in rapid industrialized bridge construction technology, the fabricated beam bridge has been widely used in road network system for a long time. The prominent disease of this type of structure is the degradation of the lateral cooperative capability, that is, the deterioration of the hinge joint stiffness. This paper proposes a monitoring and evaluation method for the lateral connection stiffness based on the multiple-beams theory, which has the concise physical meanings and can be easily implemented. On this basis, a new damage identification method and index extracted from the mode shape information of the system is proposed in this paper. To verify the effectiveness of the proposed indicator ARCR, Shanghai Tongji Road viaduct is taken as the engineering background. Results shows that the theoretical analysis results are consistent with physical truth, the proposed indicator can reasonably reflect the degradation degree of the joint and locate the damaged joint.
KW - Damage identification
KW - amplitude ratio
KW - lateral cooperative capability
KW - monitoring and evaluation
KW - prefabricated beam bridges
UR - http://www.scopus.com/inward/record.url?scp=85123481230&partnerID=8YFLogxK
U2 - 10.1177/14759217211047899
DO - 10.1177/14759217211047899
M3 - 文章
AN - SCOPUS:85123481230
SN - 1475-9217
VL - 21
SP - 2010
EP - 2025
JO - Structural Health Monitoring
JF - Structural Health Monitoring
IS - 5
ER -