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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00232294" target="_blank" >RIV/68407700:21110/15:00232294 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Shear Cracks in the Thin-wall Prestressed Element - Numericla and Experimental Analysis
Original language description
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
Czech name
—
Czech description
—

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)