Detail publikace

Verification of Bridge Load Bearing Capacity with Respect to Its Current Condition

Originální název

Verification of Bridge Load Bearing Capacity with Respect to Its Current Condition

Anglický název

Verification of Bridge Load Bearing Capacity with Respect to Its Current Condition

Jazyk

en

Originální abstrakt

Verification of the remaining working life and actual load bearing capacity of bridges with regards to their current condition is the main issue nowadays. Bridge inspections and detailed diagnostic surveys are the main sources of information about current state, dimensions, actual material properties and environmental effects. All these information are subsequently used to create and improve a computational model of analysed bridge. Also, mathematical modelling of degradation processes, such as concrete carbonation, chloride ingress and subsequent corrosion of reinforcement is very important for prediction of load bearing capacity over time. Within the paper a highly deteriorated reinforced concrete bridge is analysed as a case study. The age of the structure is about 100 years, which corresponds to the design lifetime according to standards. Verification of actual load bearing capacity is performed with respect to the current condition of the bridge using nonlinear finite element method analysis in combination with probabilistic methods. Regarding the small number of simulations, which is requested due to time demanding finite element method analyses, the stratified Latin Hypercube Sampling method is used for generating the random samples. Selected results are compared with that obtained by deterministic approach according to Czech technical standard.

Anglický abstrakt

Verification of the remaining working life and actual load bearing capacity of bridges with regards to their current condition is the main issue nowadays. Bridge inspections and detailed diagnostic surveys are the main sources of information about current state, dimensions, actual material properties and environmental effects. All these information are subsequently used to create and improve a computational model of analysed bridge. Also, mathematical modelling of degradation processes, such as concrete carbonation, chloride ingress and subsequent corrosion of reinforcement is very important for prediction of load bearing capacity over time. Within the paper a highly deteriorated reinforced concrete bridge is analysed as a case study. The age of the structure is about 100 years, which corresponds to the design lifetime according to standards. Verification of actual load bearing capacity is performed with respect to the current condition of the bridge using nonlinear finite element method analysis in combination with probabilistic methods. Regarding the small number of simulations, which is requested due to time demanding finite element method analyses, the stratified Latin Hypercube Sampling method is used for generating the random samples. Selected results are compared with that obtained by deterministic approach according to Czech technical standard.

BibTex


@misc{BUT120744,
  author="Martina {Šomodíková} and Jiří {Doležel} and David {Lehký} and Drahomír {Novák}",
  title="Verification of Bridge Load Bearing Capacity with Respect to Its Current Condition",
  annote="Verification of the remaining working life and actual load bearing capacity of bridges with regards to
their current condition is the main issue nowadays. Bridge inspections and detailed diagnostic surveys are the main sources of information about current state, dimensions, actual material properties and environmental effects. All these information are subsequently used to create and improve a computational model of analysed bridge. Also, mathematical modelling of degradation processes, such as concrete carbonation, chloride ingress and subsequent corrosion of reinforcement is very important for prediction of load bearing capacity over time. Within the paper a highly deteriorated reinforced concrete bridge is analysed as a case study. The age of the structure is about 100 years, which corresponds to the design lifetime according to standards. Verification of actual load bearing capacity is performed with respect to the current condition of the bridge using nonlinear finite element method analysis in combination with probabilistic methods. Regarding the small number of simulations, which is requested due to time demanding finite element method analyses, the stratified Latin Hypercube Sampling method is used for generating the random samples. Selected results are compared with that obtained by deterministic approach according to Czech technical standard.",
  address="Stang, H. & Braestrup, M.",
  chapter="120744",
  howpublished="electronic, physical medium",
  institution="Stang, H. & Braestrup, M.",
  year="2015",
  month="may",
  pages="1--7",
  publisher="Stang, H. & Braestrup, M.",
  type="miscellaneous"
}