In this paper, the evolution of the railway traffic during the last century is considered in order to estimate the remaining service life of a historical bridge. The selected case-study concerns the El Ourit Bridge designed in 1889 by Gustave Eiffel and located close to the town of Tlemcen, in Algeria. The response of the bridge to train loads is numerically evaluated using a finite element …
Effective management of road links composed of road sections and bridges requires the determination of preservation strategies that maximize stakeholder benefits. Solving such an optimization problem is challenging since the objective function and constraints are mostly non-linear, and the execution of interventions is discrete. This type of problem can, however, be solved using mixed-intege…
Structural Health Monitoring (SHM) applications for bridges frequently rely on some form of quantitative baseline characterization of the performance or condition of the structure. The baseline characterization may be very local with a focus on specific structural components or global in nature focusing on the overall structural system characteristics. Global level characterizations are acco…
In this study, modal parameter identification under multi-operational grades was proposed to simultaneously eliminate the effect of environmental factors (traffic load, environmental temperature, environmental humidity and wind load etc,) on the modal parameters of bridges. A cluster method was applied to classify the monitoring modal parameters, obtained by using the long-term monitoring da…
This study is intended to investigate the feasibility of bridge health monitoring using a linear system parameter of a time series model identified from traffic-induced vibration data of bridges through a moving vehicle experiment on scaled model bridges. In order to detect possible abnormality of bridges, this study adopted a parameter from autoregressive (AR) coefficients. Consideration go…
This work present the main types and features of rigid and flexible pavements built over Brazilian bridges and viaducts as well as stresses and strains developed on them according to Legal Brazilian Load. In this paper, it is shown a special report about binding layers between rigid pavement and its special foundation . It is also discussed on Brazilian bridges, why preference for flexible pave…