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Short-term bridge strengthening method

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU143792" target="_blank" >RIV/00216305:26110/19:PU143792 - isvavai.cz</a>

  • Výsledek na webu

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Short-term bridge strengthening method

  • Popis výsledku v původním jazyce

    Bridge strengthening is frequently associated with a long-term expensive bridge reconstruction. Although maximal bridge capacity is sufficient for standard traffic, it can be easily exceeded in the case of extremely heavy vehicles. Such vehicles typically weigh over 200 tons. Well-known bridge strengthening technologies are inefficient and ineconomical for this special load case. This paper presents a short-term bridge strengthening method using a temporary support structure for the assistance of the bridge carrying structure. Although this strengthening method is rather old, it is rarely known. The old theory from 1980, which is still often used, describes these temporary strengthening methods. The basic ideas come from very simplified principles and approximation models. This approximation causes restricted efficiency of the strengthening system and creates a mathematical model which does not have to be safe. The presented new short-term bridge strengthening theory is based on monitoring of real bridge structures and temporary support structures during the crossing of extremely heavy vehicles. A mathematical model, which represents behaviour of real structures aptly, is introduced. The major effects, which have the greatest influence on this strengthening method, and a safety hydraulic element invented at Brno University of Technology, which can be put into the strengthening system, ensure the required conditions and a guarantee of the strengthening system. © 2019 by the fib. All rights reserved.

  • Název v anglickém jazyce

    Short-term bridge strengthening method

  • Popis výsledku anglicky

    Bridge strengthening is frequently associated with a long-term expensive bridge reconstruction. Although maximal bridge capacity is sufficient for standard traffic, it can be easily exceeded in the case of extremely heavy vehicles. Such vehicles typically weigh over 200 tons. Well-known bridge strengthening technologies are inefficient and ineconomical for this special load case. This paper presents a short-term bridge strengthening method using a temporary support structure for the assistance of the bridge carrying structure. Although this strengthening method is rather old, it is rarely known. The old theory from 1980, which is still often used, describes these temporary strengthening methods. The basic ideas come from very simplified principles and approximation models. This approximation causes restricted efficiency of the strengthening system and creates a mathematical model which does not have to be safe. The presented new short-term bridge strengthening theory is based on monitoring of real bridge structures and temporary support structures during the crossing of extremely heavy vehicles. A mathematical model, which represents behaviour of real structures aptly, is introduced. The major effects, which have the greatest influence on this strengthening method, and a safety hydraulic element invented at Brno University of Technology, which can be put into the strengthening system, ensure the required conditions and a guarantee of the strengthening system. © 2019 by the fib. All rights reserved.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20101 - Civil engineering

Návaznosti výsledku

  • Projekt

  • Návaznosti

    S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2019

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    5th fib Congress in Melbourne, Australia (2018) proceedings (PDF)

  • ISBN

    978-1-877040-15-3

  • ISSN

  • e-ISSN

  • Počet stran výsledku

    6

  • Strana od-do

    1970-1976

  • Název nakladatele

    Federation Internationale du Beton (fib)

  • Místo vydání

    Switzerland

  • Místo konání akce

    Melbourne

  • Datum konání akce

    7. 10. 2018

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku