Přístupnostní navigace
E-application
Search Search Close
Publication detail
PĚKNÍK, R. KLUSÁČEK, L.
Original Title
Restoration of arch bridge by additional horizontal prestressing
Type
conference paper
Language
English
Original Abstract
The general focus of the paper is to show a method of strengthening arch bridge that has longitudinal cracks. The process is done by new reinforced concrete spandrel walls stabilized by transverse prestressed monostrands. Specifically, the paper is aimed at the reconstruction of the brick arch railway bridge, which was in disrepair. At the beginning of the design work it had to be decided whether it would be effective to carry out reconstruction of the existing bridge, or to accede to build a new bridge on the existing place. For the decision-making process there was a comprehensive diagnostic survey made - the survey of experimental measurement of modulus and strain measurement masonry walls in the crown during the operational load using tough half-frames (ribes). After evaluating the measurement, it has been recommended to do reconstruction. After the work was done, new measurements were done during the operational load when the measured values should confirm the effectiveness and appropriateness of reconstruction. After the evaluation the strain of the top cross-section reduced to 40% of the values before amplification. The text will also be given a numerical model and its’ calibration using the measured values of the deformation of the top section.
Keywords
arch bridge, horizontal prestressing, masonry, deflection, strain
Authors
PĚKNÍK, R.; KLUSÁČEK, L.
Released
29. 6. 2017
Publisher
Elsevier Ltd
ISBN
1877-7058
Periodical
Procedia Engineering
Year of study
193
State
Kingdom of the Netherlands
Pages from
447
Pages to
454
Pages count
8
URL
https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S187770581732800X
BibTex
@inproceedings{BUT137593, author="Robin {Pěkník} and Ladislav {Klusáček}", title="Restoration of arch bridge by additional horizontal prestressing", booktitle="Procedia Engineering", year="2017", journal="Procedia Engineering", volume="193", pages="447--454", publisher="Elsevier Ltd", doi="10.1016/j.proeng.2017.06.236", issn="1877-7058", url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S187770581732800X" }