Publication result detail

Determination of uncertain design parameters of post-tensioned composite bridge

LEHKÝ, D.; ŠOMODÍKOVÁ, M.; LIPOWCZAN, M.

Original Title

Determination of uncertain design parameters of post-tensioned composite bridge

English Title

Determination of uncertain design parameters of post-tensioned composite bridge

Type

Paper in proceedings (conference paper)

Original Abstract

In the paper a soft-computing based small-sample inverse reliability method is employed to find selected design parameters of a single-span post-tensioned composite bridge to ensure its reliability and load-bearing capacity. The analyzed bridge is made of precast post-tensioned concrete girders, each composed of six segments that are connected by the transverse joints. According to diagnostic survey the bridge exhibits a spatial variability of deterioration which brings uncertainty into actual values of concrete strength in transverse joints and of actual loss of pre-stressing. Because of their significant effect on the bridge load-bearing capacity and reliability, both were considered as uncertain design parameters with the aim to find their critical values corresponding to desired reliability level and load-bearing capacity.

English abstract

In the paper a soft-computing based small-sample inverse reliability method is employed to find selected design parameters of a single-span post-tensioned composite bridge to ensure its reliability and load-bearing capacity. The analyzed bridge is made of precast post-tensioned concrete girders, each composed of six segments that are connected by the transverse joints. According to diagnostic survey the bridge exhibits a spatial variability of deterioration which brings uncertainty into actual values of concrete strength in transverse joints and of actual loss of pre-stressing. Because of their significant effect on the bridge load-bearing capacity and reliability, both were considered as uncertain design parameters with the aim to find their critical values corresponding to desired reliability level and load-bearing capacity.

Keywords

Determination, parameters, composite bridge, soft-computing, reliability method

Key words in English

Determination, parameters, composite bridge, soft-computing, reliability method

Authors

LEHKÝ, D.; ŠOMODÍKOVÁ, M.; LIPOWCZAN, M.

RIV year

2017

Released

26.06.2016

Location

Brazílie

ISBN

978-1-138-02851-7

Book

Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks

Pages from

1770

Pages to

1775

Pages count

6

BibTex

@inproceedings{BUT127073,
  author="David {Lehký} and Martina {Sadílková Šomodíková} and Martin {Lipowczan}",
  title="Determination of uncertain design parameters of post-tensioned composite bridge",
  booktitle="Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks",
  year="2016",
  pages="1770--1775",
  address="Brazílie",
  isbn="978-1-138-02851-7"
}