TY - JOUR
T1 - Static and dynamic responses of a tied-arch railway bridge under train load
AU - Gou, Hongye
AU - Yang, Biao
AU - Guo, Wei
AU - Bao, Yi
N1 - Publisher Copyright:
Copyright © 2019 Techno-Press, Ltd.
PY - 2019
Y1 - 2019
N2 - In this paper, the static and dynamic responses of a tied-arch railway bridge under train load were studied through field tests. The deflection and stresses of the bridge were measured in different static loading scenarios. The dynamic load test of the bridge was carried out under the excitation of running train at different speeds. The dynamic properties of the bridge were investigated in terms of the free vibration characteristics, dynamic coefficients, accelerations, displacements and derailment coefficients. The results indicate that the tie of the measuring point has a significant effect on the vertical movement of the test section. The dynamic responses of arch bridge are insensitive to the number of trains. The derailment coefficients of locomotive and carriage increase with the train speed and symmetrically distributed double-line loads reduce the train derailment probability.
AB - In this paper, the static and dynamic responses of a tied-arch railway bridge under train load were studied through field tests. The deflection and stresses of the bridge were measured in different static loading scenarios. The dynamic load test of the bridge was carried out under the excitation of running train at different speeds. The dynamic properties of the bridge were investigated in terms of the free vibration characteristics, dynamic coefficients, accelerations, displacements and derailment coefficients. The results indicate that the tie of the measuring point has a significant effect on the vertical movement of the test section. The dynamic responses of arch bridge are insensitive to the number of trains. The derailment coefficients of locomotive and carriage increase with the train speed and symmetrically distributed double-line loads reduce the train derailment probability.
KW - Derailment coefficient
KW - Dynamic response
KW - Field test
KW - Tied arch bridge
KW - Train load
KW - Vertical movement
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U2 - 10.12989/sem.2019.71.1.013
DO - 10.12989/sem.2019.71.1.013
M3 - Article
AN - SCOPUS:85068796862
SN - 1225-4568
VL - 71
SP - 13
EP - 22
JO - Structural Engineering and Mechanics
JF - Structural Engineering and Mechanics
IS - 1
ER -