Shear Cracks in the Thin-wall Prestressed Element - Numericla and Experimental Analysis

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Shear Cracks in the Thin-wall Prestressed Element - Numericla and Experimental Analysis

Popis výsledku v původním jazyce

The thin-walled prestressed concrete beams enable to bridge relatively large span. These structures have advantages in economic and environmental way due to their thickness and lower consumption of materials. The normal stress caused by bending moments can be effectively eliminated by prestressing. However, the shear forces can cause unexpected cracks in the web if the straight cables (or unfavourable prestressing arrangement) are used. The principal tensile stress arises in the web of the thin-walled element. Eurocode 1992-2 for design of the concrete bridges introduces the direction-dependent tensile strength fctb in the informative appendix QQ. This material characteristic reduces normal tensile strength fctm due to the acting principal compressivestress. There is no term in the Model Code 2010 such a direction-dependent tensile strength. The assessment of the arise of the shear cracks in the webs of beams only can be done by comparing acting principal tensile stress and tensile st

Název v anglickém jazyce

Shear Cracks in the Thin-wall Prestressed Element - Numericla and Experimental Analysis

Popis výsledku anglicky

The thin-walled prestressed concrete beams enable to bridge relatively large span. These structures have advantages in economic and environmental way due to their thickness and lower consumption of materials. The normal stress caused by bending moments can be effectively eliminated by prestressing. However, the shear forces can cause unexpected cracks in the web if the straight cables (or unfavourable prestressing arrangement) are used. The principal tensile stress arises in the web of the thin-walled element. Eurocode 1992-2 for design of the concrete bridges introduces the direction-dependent tensile strength fctb in the informative appendix QQ. This material characteristic reduces normal tensile strength fctm due to the acting principal compressivestress. There is no term in the Model Code 2010 such a direction-dependent tensile strength. The assessment of the arise of the shear cracks in the webs of beams only can be done by comparing acting principal tensile stress and tensile st

Druh

D - Stať ve sborníku

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

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

PhD Workshop 2015 - Full Versions

ISBN

978-80-01-05722-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

České vysoké učení technické v Praze, Fakulta stavební

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

22. 5. 2015

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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