Calibrating and validating a FE model for long-term behavior of RC beams
Kalibracija i verifikacija modela konačnih elemenata za dugotrajno ponašanje AB greda
dc.creator | Tošić, Nikola | |
dc.creator | Marinković, Snežana | |
dc.date.accessioned | 2019-04-19T14:21:06Z | |
dc.date.available | 2019-04-19T14:21:06Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 0040-2176 | |
dc.identifier.uri | https://grafar.grf.bg.ac.rs/handle/123456789/565 | |
dc.description.abstract | This study presents the research carried out in finding an optimal finite element (FE) model for calculating the long-term behavior of reinforced concrete (RC) beams. A multi-purpose finite element software DIANA was used. A benchmark test in the form of a simply supported beam loaded in four point bending was selected for model calibration. The result was the choice of 3-node beam elements, a multi-directional fixed crack model with constant stress cut-off, nonlinear tension softening and constant shear retention and a creep and shrinkage model according to CEB-FIP Model Code 1990. The model was then validated on 14 simply supported beams and 6 continuous beams. Good agreement was found with experimental results (within ±15%). | en |
dc.description.abstract | U ovom radu je predstavljeno istraživanje sprovedeno u svrhu pronalaženja optimalnog modela konačnih elemenata za predviđanje ponašanja armirano-betonskih greda pod dugotrajnim opterećenjem. U istraživanju je korišćen višenamenski komercijalni softver DIANA. Za kalibraciju modela je odabran benčmark test u vidu proste grede opterećene savijanjem u četiri tačke. Kao rezultat kalibracije, odabrani model se sastojao od linijskih konačnih elemenata sa tri čvora. Odabran je model fiksne prsline u više pravaca. Sadejstvo zategnutog betona izmenu prslina opisano je nelinearnom funkcijom. Odabrana je konstantna rezidualna nosivost pri smicanju. Skupljanje i tečenje je modelirano prema CEB-FIP Model Code 1990. Model je dodatno verifikovan na 14 prostih greda i 6 kontinualnih greda sa dva polja. Rezultati su pokazali dobro slaganje sa eksperimentalnim vrednostima (±15%). | sr |
dc.publisher | Savez inženjera i tehničara Srbije, Beograd | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/36017/RS// | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Tehnika | |
dc.subject | creep | en |
dc.subject | shrinkage | en |
dc.subject | reinforced concrete | en |
dc.subject | beams | en |
dc.subject | FE | en |
dc.subject | tečenje | sr |
dc.subject | skupljanje | sr |
dc.subject | armirani beton | sr |
dc.subject | grede | sr |
dc.subject | konačni elementi | sr |
dc.title | Calibrating and validating a FE model for long-term behavior of RC beams | en |
dc.title | Kalibracija i verifikacija modela konačnih elemenata za dugotrajno ponašanje AB greda | sr |
dc.type | article | |
dc.rights.license | BY | |
dc.citation.epage | 392 | |
dc.citation.issue | 3 | |
dc.citation.other | 69(3): 385-392 | |
dc.citation.rank | M51 | |
dc.citation.spage | 385 | |
dc.citation.volume | 69 | |
dc.identifier.doi | 10.5937/tehnika1403385T | |
dc.identifier.fulltext | https://grafar.grf.bg.ac.rs//bitstream/id/3971/563.pdf | |
dc.type.version | publishedVersion |