Publication detail

Strengthening of bridges by post-tensioning using monostrands in substituted cable ducts

KLUSÁČEK, L. SVOBODA, A.

Original Title

Strengthening of bridges by post-tensioning using monostrands in substituted cable ducts

Type

journal article in Web of Science

Language

English

Original Abstract

Post-tensioning is suitable, reliable and durable method of strengthening existing engineering structures, especially bridges. The high efficiency of post-tensioning can be seen in many applications throughout the world. In this paper the method is extended by a structural system of substituted cable ducts, which allows for significantly widening application of prestressing so it’s convenient mostly for application on beam bridges or slab bridges (built in years 1920 – 1960). The method of substituted cable ducts is based on theoretical knowledge and technical procedures, which were made possible through the development in prestressing systems, particularly the development of prestressing tendons (monostrands) and encased anchorages, as well as progress in drilling technology. This technique is highly recommended due to minimization of interventions into the constructions, unseen method of cable arrangement and hence the absence of impact on appearance, which is appreciated not only in case of valuable historical structures but also in general. It is possible to summarise that post-tensioning by monostrands in substituted cable ducts is a highly effective method of strengthening existing bridges in order to increase their load capacities in terms of current traffic load and to extend their service life.

Keywords

post-tensioning; substituted cable ducts method; strengthening; load capacity; existing concrete bridges

Authors

KLUSÁČEK, L.; SVOBODA, A.

Released

15. 9. 2017

Publisher

IOP Publishing

Location

Bristol

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

236

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

12

Pages count

12

URL

http://iopscience.iop.org/article/10.1088/1757-899X/236/1/012057

Full text in the Digital Library

http://hdl.handle.net/11012/137172

BibTex

@article{BUT140480,
  author="Ladislav {Klusáček} and Adam {Svoboda}",
  title="Strengthening of bridges by post-tensioning using monostrands in substituted cable ducts",
  journal="IOP Conference Series: Materials Science and Engineering",
  year="2017",
  volume="236",
  number="1",
  pages="1--12",
  doi="10.1088/1757-899X/236/1/012057",
  issn="1757-8981",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/236/1/012057"
}