Publication detail

Reliability analysis of RC columns strengthened by post-tensioning

PĚNČÍK, J. FLORIAN, A.

Original Title

Reliability analysis of RC columns strengthened by post-tensioning

English Title

Reliability analysis of RC columns strengthened by post-tensioning

Type

conference paper

Language

en

Original Abstract

The paper presents a reliability analysis of reinforced concrete (RC) columns with short direct embedded cantilevers in the manufacturing hall Kovolit Modrice Co., Czech Republic. The bearing capacity of short direct embedded cantilevers of RC columns is increased by internal prestressing cables. The method of strengthening as well as FEM analysis previous to prestressing design and construction is described. Results of deterministic and reliability analysis of RC columns in different construction states are presented. The modern simulation technique Updated Latin Hypercube Sampling with 50 simulations is used for reliability analysis. For the analysed construction cases, the estimates of mean value, standard deviation, coefficient of variation, skewness, and minimal and maximal values of the principal stresses in six points on the expected shear crack in the location of the short cantilever are obtained. Also the input variables with significant influence on the structural behavior are shown.

English abstract

The paper presents a reliability analysis of reinforced concrete (RC) columns with short direct embedded cantilevers in the manufacturing hall Kovolit Modrice Co., Czech Republic. The bearing capacity of short direct embedded cantilevers of RC columns is increased by internal prestressing cables. The method of strengthening as well as FEM analysis previous to prestressing design and construction is described. Results of deterministic and reliability analysis of RC columns in different construction states are presented. The modern simulation technique Updated Latin Hypercube Sampling with 50 simulations is used for reliability analysis. For the analysed construction cases, the estimates of mean value, standard deviation, coefficient of variation, skewness, and minimal and maximal values of the principal stresses in six points on the expected shear crack in the location of the short cantilever are obtained. Also the input variables with significant influence on the structural behavior are shown.

Keywords

FEA, RC girder, concrete, simulation, reliability, Latin Hypercube Sampling, random behaviour, uncertainties

Released

07.09.2004

Publisher

Civil-Comp Press

Location

Lisbon

ISBN

0-948749-94-6

Book

Proceedings of the 7th International Conference on Computational Structures Technology

Pages from

1

Pages to

15

Pages count

15

BibTex


@inproceedings{BUT16809,
  author="Jan {Pěnčík} and Aleš {Florian}",
  title="Reliability analysis of RC columns strengthened by post-tensioning",
  annote="The paper presents a reliability analysis of reinforced concrete (RC) columns with short direct embedded cantilevers in the manufacturing hall Kovolit Modrice Co., Czech Republic. The bearing capacity of short direct embedded cantilevers of RC columns is increased by internal prestressing cables. The method of strengthening as well as FEM analysis previous to prestressing design and construction is described. Results of deterministic and reliability analysis of RC columns in different construction states are presented. The modern simulation technique Updated Latin Hypercube Sampling with 50 simulations is used for reliability analysis. For the analysed construction cases, the estimates of mean value, standard deviation, coefficient of variation, skewness, and minimal and maximal values of the principal stresses in six points on the expected shear crack in the location of the short cantilever are obtained. Also the input variables with significant influence on the structural behavior are shown.",
  address="Civil-Comp Press",
  booktitle="Proceedings of the 7th International Conference on Computational Structures Technology",
  chapter="16809",
  institution="Civil-Comp Press",
  year="2004",
  month="september",
  pages="1",
  publisher="Civil-Comp Press",
  type="conference paper"
}