Location
Cork Institute of Technology, Cork, Ireland
Event Website
https://event.ceri2020.exordo.com/
Start Date
28-8-2020 11:45 AM
End Date
28-8-2020 1:00 PM
Description
The maintenance and repair of ageing bridges is a concern for road infrastructure managers. This issue is amplified by the increasing weights and frequency of travel of freight vehicles in recent times. In order to accurately assess the risk of damage for road bridges, it is essential to have knowledge of both historical and current bridge loading. When available, site-specific Weigh-in-Motion (WIM) data can be effective in creating representative load models for a structure. However, for cases where WIM data is not available and in cases where future damage must be predicted, it is necessary to simulate appropriate data using statistical techniques.
Characteristic load effects on bridges are often calculated probabilistically using a base set of loading data combined with statistical extrapolation. However, this technique fails to consider investigation of load evolution and does not allow for inspection of the characteristic loading events. Additionally, for vehicles travelling in the same direction, statistical extrapolation does not account for truck meeting events that were not measured during the WIM period. These shortfalls may be addressed through long-run traffic simulations, where many years of traffic may be simulated considering changes to traffic over time.
Recommended Citation
Donnelly, Róisín; Connolly, Lorcan; and Bernardini, Ilaria, "Long-Run Traffic Simulations for Multi-Lane Road Bridges" (2020). Civil Engineering Research in Ireland 2020. 3.
https://sword.cit.ie/ceri/2020/4/3
Included in
Civil Engineering Commons, Construction Engineering and Management Commons, Environmental Engineering Commons, Geotechnical Engineering Commons, Hydraulic Engineering Commons, Structural Engineering Commons, Transportation Engineering Commons
Long-Run Traffic Simulations for Multi-Lane Road Bridges
Cork Institute of Technology, Cork, Ireland
The maintenance and repair of ageing bridges is a concern for road infrastructure managers. This issue is amplified by the increasing weights and frequency of travel of freight vehicles in recent times. In order to accurately assess the risk of damage for road bridges, it is essential to have knowledge of both historical and current bridge loading. When available, site-specific Weigh-in-Motion (WIM) data can be effective in creating representative load models for a structure. However, for cases where WIM data is not available and in cases where future damage must be predicted, it is necessary to simulate appropriate data using statistical techniques.
Characteristic load effects on bridges are often calculated probabilistically using a base set of loading data combined with statistical extrapolation. However, this technique fails to consider investigation of load evolution and does not allow for inspection of the characteristic loading events. Additionally, for vehicles travelling in the same direction, statistical extrapolation does not account for truck meeting events that were not measured during the WIM period. These shortfalls may be addressed through long-run traffic simulations, where many years of traffic may be simulated considering changes to traffic over time.
https://sword.cit.ie/ceri/2020/4/3
