TY - JOUR
T1 - Dynamic response of a cracked multi-span continuous beam subjected to a moving multi-axle vehicle load
AU - Pham, Truong Son
AU - Hoang, Tien
AU - Duhamel, Denis
AU - Foret, Gilles
AU - Schmidt, Franziska
AU - Cartiaux, François Baptiste
AU - Le Corvec, Véronique
N1 - Publisher Copyright:
© 2021 International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII. All rights reserved.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - An analytical model is developed to calculate the dynamic response of a cracked multi-span continuous beam, subjected to a multiple-axle vehicle load. In this model, the vehicle load is considered as a series of concentrated moving loads at a constant velocity. Meanwhile, the crack is modelled by a spiral spring. Thereafter, the cracked span is considered as a two-span beam, connected by the spring at the position of the crack. By using the Euler-Bernoulli beam theory, the relations between the two successive spans can be obtained from the boundary conditions at the supports and the position of the crack. This technique makes it possible to calculate the eigenmodes of the beam. The response of the beam is finally obtained by the superposition of the modes. This model allows us to quickly analyze the influence of the cracks (depth, location) and of the vehicle (loads, velocity) on the response. Moreover, this model is validated by finite element modelling and some numerical results are given.
AB - An analytical model is developed to calculate the dynamic response of a cracked multi-span continuous beam, subjected to a multiple-axle vehicle load. In this model, the vehicle load is considered as a series of concentrated moving loads at a constant velocity. Meanwhile, the crack is modelled by a spiral spring. Thereafter, the cracked span is considered as a two-span beam, connected by the spring at the position of the crack. By using the Euler-Bernoulli beam theory, the relations between the two successive spans can be obtained from the boundary conditions at the supports and the position of the crack. This technique makes it possible to calculate the eigenmodes of the beam. The response of the beam is finally obtained by the superposition of the modes. This model allows us to quickly analyze the influence of the cracks (depth, location) and of the vehicle (loads, velocity) on the response. Moreover, this model is validated by finite element modelling and some numerical results are given.
KW - Cracked structure
KW - Moving loads
KW - Multi-span continuous beam
KW - Transfer Matrix Method
UR - https://www.scopus.com/pages/publications/85130740478
M3 - Conference article
AN - SCOPUS:85130740478
SN - 2564-3738
VL - 2021-June
SP - 1819
EP - 1825
JO - International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII
JF - International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII
T2 - 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2021
Y2 - 30 June 2021 through 2 July 2021
ER -