Juniorstav 2022
DOI: 10.13164/juniorstav.2022.231
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Degradace tahové únosnosti tvarované kompozitní výztuže vlivem alkalického prostředí

Abstract: Vysoké učení technické v Brně, Fakulta stavební, Ústav betonových a zděných konstrukcí Abstrakt Hlavním důvodem nahrazení běžné využívané betonářské výztuže kompozitní výztuží, je u přímých prvků její vysoká odolnost vůči agresivnímu prostředí. U přímé výztuže je tato problematika rozsáhle popsána a prozkoumána. U tvarované, resp. ohýbané výztuže nastávají při výrobě během ohýbacího procesu strukturální změny průřezu, které mohou zásadním způsobem ovlivnit její únosnost v tahu. Výzkumná činnost popsána v článk… Show more

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Cited by 3 publications
(4 citation statements)
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“…• The strength of the bent reinforcement increased slightly over a short period of time (0 to 30 days). This phenomenon can be attributed mainly to the introduction of compressive stresses into the concrete, which were applied at 30 days and beyond [15];…”
Section: Discussionmentioning
confidence: 99%
See 2 more Smart Citations
“…• The strength of the bent reinforcement increased slightly over a short period of time (0 to 30 days). This phenomenon can be attributed mainly to the introduction of compressive stresses into the concrete, which were applied at 30 days and beyond [15];…”
Section: Discussionmentioning
confidence: 99%
“…The failure occurred due to stress concentration at the beginning of the bend. The reduction of the bearing capacity can be limited by providing more efficient stress distribution along the bend [15]. This was indirectly demonstrated by the increased load carrying capacity of the specimens when compressive forces were introduced into the concrete;…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…A bent reinforcement can be tested according to method B.5 or B.12, ACI 440.3R-12 [12]. Comparison of testing methods and development of own one was the subject of the study [13]. The test method called "L_GFRP" is shown in figure 5.…”
Section: Experiments Configurationmentioning
confidence: 99%