Ar kompozītmateriālam pastiprinātu betona kolonnu nelineāras deformācijas un sabrukšanas analīze

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Ar kompozītmateriālam pastiprinātu betona kolonnu nelineāras deformācijas un sabrukšanas analīze

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Šajā darbā analizēta ar kompozītmateriāliem pastiprinātu betona kolonnu nelineārā deformēšanās un sabrukums. Eksperimentāli pētīta kompozītmateriālu aptinuma ietekme uz betona kolonnu mehāniskajām īpašībām. Paradīts, ka kompozītmateriālu aptinums ievērojami palielina betona stiprību. Paraugiem, izgatavotiem no betona markas ar mazāku stiprību, aptinuma iedarbība uz mehāniskajām īpašībām bija efektīvāka. Tika izveidots modelis aptīto betona kolonnu stiprības prognozēšanai. Slogošanas ceļi sprieguma telpā visiem aptītā betona paraugiem gulstas vienā pamatlīknē (neatkarīgi no betona markas un aptinuma biezuma), kura nelineārajā deformāciju intervālā sakrīt ar stiprības taisni. Tika izanalizētas aptīto paraugu deformatīvās īpašības pie spiedes. Iegūtas sakarības, kas apraksta paraugu deformēšanos, ievērojot sabrukuma procesus betonā, prognozēta moduļa samazināšanās un graujošā deformācija. Darbs tika izstrādāts LU Polimēru Mehānikas institūtā (LU PMI).

year	journal	country	edition	language
2006-01-01

https://dspace.lu.lv/dspace/handle/7/19716

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