Innovative strenghtening of road bridges with Iron-based shape Memory Alloys (Fe-SMA)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00352111" target="_blank" >RIV/68407700:21110/22:00352111 - isvavai.cz</a>

Result on the web

<a href="https://eurostruct.org/eurostruct-2021/" target="_blank" >https://eurostruct.org/eurostruct-2021/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-91877-4_64" target="_blank" >10.1007/978-3-030-91877-4_64</a>

Result language

angličtina

Original language name

Innovative strenghtening of road bridges with Iron-based shape Memory Alloys (Fe-SMA)

Original language description

Bridge over Chodovsky stream is a composite structure made of filler-beam deck, erected in 2017 in Karlovy Vary (Czech Republic). Urgent need of re-pair works on the bridge arose due to excessive effects of creep and subse-quent deflection compromising the driving comfort. A bolted retrofit (BR) system was developed to apply pre-strained Fe-SMA prestressing bars. The shape memory effect (SME) of Fe-SMA was used for prestressing of the ret-rofit bars to increase the flexural resistance of the filler beam deck as well as to reduce the bridge static de-flection. After the Fe-SMA strengthening of Pe-trov bridge in May of 2019 (bridge was demolished in July of 2019), this is to the best of author’s knowledge second application of this kind of strengthening and first permanent application of Fe-SMA to the bridge struc-ture. Because of its novelty, the possi-bility for monitoring and evaluation of Fe-SMA-strengthening reliability on real bridge structure subjected to daily traffic is of great value. Wireless monitoring system was installed prior to the strengthening application. For the short-term measurements, the bridge was loaded with four 32-ton trucks before and after strengthening. The results of short- and long-term measurements show the effec-tivity and reliability of the Fe-SMA strengthening for current structures. The re-laxation of Fe-SMA is evaluated and the results are compared with preliminary laboratory testing of the same BR strengthening system.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/CK03000219" target="_blank" >CK03000219: Advanced Modular Cloud Computing System for Bridge Infrastructure Monitoring Utilizing Fibre Optics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures

ISBN

9783030918767

ISSN

2366-2557

e-ISSN

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Number of pages

9

Pages from-to

560-568

Publisher name

Springer Nature Switzerland AG

Place of publication

Basel

Event location

Padova

Event date

Aug 29, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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