TY - GEN
T1 - Reliability analysis of footbridge serviceability considering crowd loading
AU - Keogh, J.
AU - Caprani, C. C.
AU - Archbold, P.
AU - Fanning, P.
PY - 2012
Y1 - 2012
N2 - Bridge vibrations produced from a crowd of pedestrians are typically estimated by using an enhancement factor applied to the effect caused by a single pedestrian. In this paper a moving force model is used in Monte Carlo simulations of non-homogeneous single pedestrians and crowds to estimate characteristic vertical vibration levels. Also, statistical distributions of the bridge parameters are considered, including flexural rigidity, mass, and rotational stiffness at the supports. In this paper, probability of serviceability failure is calculated for ranges of pedestrian and bridge input parameters and it is found that the addition of statistical ranges for bridge parameters has only a small effect on the vertical acceleration response of the bridge deck. It reduced the probability of serviceability failure for a bridge with a natural frequency of 1.8, 1.96 Hz and 2.2 Hz subjected to the loading of a characteristic single pedestrian.
AB - Bridge vibrations produced from a crowd of pedestrians are typically estimated by using an enhancement factor applied to the effect caused by a single pedestrian. In this paper a moving force model is used in Monte Carlo simulations of non-homogeneous single pedestrians and crowds to estimate characteristic vertical vibration levels. Also, statistical distributions of the bridge parameters are considered, including flexural rigidity, mass, and rotational stiffness at the supports. In this paper, probability of serviceability failure is calculated for ranges of pedestrian and bridge input parameters and it is found that the addition of statistical ranges for bridge parameters has only a small effect on the vertical acceleration response of the bridge deck. It reduced the probability of serviceability failure for a bridge with a natural frequency of 1.8, 1.96 Hz and 2.2 Hz subjected to the loading of a characteristic single pedestrian.
UR - http://www.scopus.com/inward/record.url?scp=84863937464&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84863937464
SN - 9780415621243
T3 - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
SP - 3264
EP - 3271
BT - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
T2 - 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
Y2 - 8 July 2012 through 12 July 2012
ER -