Lateral buckling of continuous composite bridge girder

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00205657" target="_blank" >RIV/68407700:21110/13:00205657 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/13:00208798

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Lateral buckling of continuous composite bridge girder

Popis výsledku v původním jazyce

A frequent solution for middle span road bridges is a continuous girder consisting of several parallel steel beams connected to a concrete deck. Lateral buckling can occur in the regions close to internal support where the compressed lower flange does not get any continuous lateral restraint. Because the upper flange is supported by the concrete slab the section does not remain rigid (unchangeable), but the web distorts. This phenomenon is usually called lateral distortional buckling (LDB). Usually andconservatively the problem is solved by a method of inverted continuous U-frame, which approximates it as buckling of the compressed part of the section. Though the number of studies on LDB is very small compared to the number of studies on LTB (lateraltorsional buckling) the problem of LDB has been constantly explored using finite element method or finite strip method, both combined with the principle of minimal potential energy. Despite of that, there is no universal design procedure

Název v anglickém jazyce

Lateral buckling of continuous composite bridge girder

Popis výsledku anglicky

A frequent solution for middle span road bridges is a continuous girder consisting of several parallel steel beams connected to a concrete deck. Lateral buckling can occur in the regions close to internal support where the compressed lower flange does not get any continuous lateral restraint. Because the upper flange is supported by the concrete slab the section does not remain rigid (unchangeable), but the web distorts. This phenomenon is usually called lateral distortional buckling (LDB). Usually andconservatively the problem is solved by a method of inverted continuous U-frame, which approximates it as buckling of the compressed part of the section. Though the number of studies on LDB is very small compared to the number of studies on LTB (lateraltorsional buckling) the problem of LDB has been constantly explored using finite element method or finite strip method, both combined with the principle of minimal potential energy. Despite of that, there is no universal design procedure

Druh

O - Ostatní výsledky

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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