Detail publikace

Comparison of methods for determination of load-bearing capacity of I-73 and KA-73 precast concrete bridge beams

LEHKÝ, D. NOVÁK, D. KUCEK, M. NEZVAL, M.

Originální název

Comparison of methods for determination of load-bearing capacity of I-73 and KA-73 precast concrete bridge beams

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

A comprehensive procedure to determine a load-bearing capacity of I-73 and KA-73 precast concrete bridge beams using the advanced methods of statistical analysis based on simulation technique of Monte Carlo type in combination with nonlinear finite element method analysis is presented in the paper. Degradation processes over time caused by carbonation of concrete and chloride ingress together with consequent corrosion of prestressing tendons are taken into account. Mathematical modelling of these phenomena is based on information about the current state of the investigated bridges obtained from diagnostic surveys, including the degree to which building materials have deteriorated. Results of probabilistic approach are compared with those obtained using a global safety factor method according to the Eurocode 2 and the fib Model Code 2010 method called Estimate of Coefficient of Variation. Shortcomings and advantages of all utilized design/assessment methods are discussed.

Klíčová slova

Reliability assessment; bridges; I-73 beams; KA-73 beams; uncertainties; load-bearing capacity; lifetime assessment; reliability index.

Autoři

LEHKÝ, D.; NOVÁK, D.; KUCEK, M.; NEZVAL, M.

Vydáno

26. 7. 2017

Nakladatel

International Association for Bridge and Structural Engineering (IABSE)

Místo

Vancouver, Canada

ISBN

978-3-85748-153-6

Kniha

39th IABSE Symposium – Engineering the Future

Strany od

556

Strany do

561

Strany počet

6

URL

http://toc.proceedings.com/39814webtoc.pdf

BibTex

@inproceedings{BUT146062,
  author="David {Lehký} and Drahomír {Novák} and Martin {Kucek} and Martin {Nezval}",
  title="Comparison of methods for determination of load-bearing capacity of I-73 and KA-73 precast concrete bridge beams",
  booktitle="39th IABSE Symposium – Engineering the Future",
  year="2017",
  pages="556--561",
  publisher="International Association for Bridge and Structural Engineering (IABSE)",
  address="Vancouver, Canada",
  isbn="978-3-85748-153-6",
  url="http://toc.proceedings.com/39814webtoc.pdf"
}