Eksperimentalne preiskave nosilnosti kotnih sider pri sidranju lesenih masivnih stenastih elementov

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Language:	Slovenian
Year of publishing:	2005
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[Ž. Stepišnik]
UDC:	624.011.1:691.11(043.2)
COBISS:	3007329
Views:	1698
Downloads:	611
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Experimental testing of load capacity of angle brackets for anchoring of solid wooden panels
Secondary abstract:	Different angle brackets for anchoring solid wooden panels were tested to learn about their response and basic mechanical properties on the acting load in two perpendicular directions. Namely, previous tests showed two distinct cases of panel deformation. In one case the panel mainly rotates around its compressed corner. In the other case the panel slips along foundation and deforms into parallelogram shape. Based on this knowledge, the tests were designed to simulate these two cases of deformation. The two tests were named »up-lift test« and »slip test«. The tests were carried out on cross laminated and unidirectional laminated wooden panels segments anchored by BMF and WÜRTH angle brackets. To obtain reliable mechanical characteristics three different loading protocols were applied. Loading protocols to simulate realistic loads on angle brackets were monotonous, according to standard EN 26891, and cyclic or semi-cyclic according to standard prEN 12512. The tests showed that the length of nails has greater influence on the results that their number. The test results show that cross laminated panel has better possibility for strong fixation than unidirectional laminated panel.
Secondary keywords:	timber structures;wall anchors;experimental research;cyclic analysis;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. Ljubljana, Fakulteta za gradbeništvo in geodezijo, Oddelek za gradbeništvo, Visokošolski strokovni študij, Konstrukcijska smer
Pages:	XV, 70 str.
Type (ePrints):	thesis
Title (ePrints):	Experimental testing of load capacity of angle brackets for anchoring of solid wooden panels
Keywords (ePrints):	lesene konstrukcije;sidra sten;eksperimentalne preiskave;ciklična obtežba
Keywords (ePrints, secondary language):	timber structures;wall anchors;experimental research;cyclic analysis
Abstract (ePrints):	V sklopu naloge smo preizkušali različna sidra za lesene masivne lepljene stenske elemente z namenom, da bi določili njihov odziv in osnovne mehanske lastnosti sider pri obtežbi, ki deluje v dveh pravokotnih smereh. Pri predhodnih preiskavah je bilo namreč ugotovljeno, da se stenski elementi pri vodoravni obtežbi lahko deformirajo na dva značilna načina. Prvi mejni način je, da se zavrtijo okoli tlačenega roba, in drugi da deloma drsijo v stiku s temeljno konstrukcijo in se po višini strižno deformirajo v obliko paralelograma. Na podlagi teh ugotovitev smo določili preiskave, ki simulirajo takšen obnašanja pri prenosu obtežbe na sidra. Preiskave sider, ki so simulirajo rotacijo stenskega elementa okoli tlačenega roba, smo poimenovali dvižne preiskave, medtem ko smo preiskave, ki simulirajo strižno obnašanje panela, poimenovali prečne preiskave. Eksperimentalne preiskave smo opravili na segmentih lesenih navzkrižno in enosmerno lepljenih panelov ter kotnih sidrih proizvajalcev BMF in WÜRTH. Za določitev mehanskih lastnosti sidrišč smo preizkušance obremenjevali z enakomerno naraščajočo monotno obtežbo, monotono obtežbo z razbremenjevanjem po standardu EN 26981 in ciklično oziroma pol-ciklično obtežbo po standardu prEN 12512. Rezultati preiskav so pokazali, da na obnašanje stika bolj vpliva dolžina žebljev, kot pa število le teh v stiku. Rezultati so tudi pokazali, da ima nazvkrižno lepljen panel boljše možnosti za uporabo in izvedbo močnejših sider od enosmerno lepljenih panelov.
Abstract (ePrints, secondary language):	Different angle brackets for anchoring solid wooden panels were tested to learn about their response and basic mechanical properties on the acting load in two perpendicular directions. Namely, previous tests showed two distinct cases of panel deformation. In one case the panel mainly rotates around its compressed corner. In the other case the panel slips along foundation and deforms into parallelogram shape. Based on this knowledge, the tests were designed to simulate these two cases of deformation. The two tests were named »up-lift test« and »slip test«. The tests were carried out on cross laminated and unidirectional laminated wooden panels segments anchored by BMF and WÜRTH angle brackets. To obtain reliable mechanical characteristics three different loading protocols were applied. Loading protocols to simulate realistic loads on angle brackets were monotonous, according to standard EN 26891, and cyclic or semi-cyclic according to standard prEN 12512. The tests showed that the length of nails has greater influence on the results that their number. The test results show that cross laminated panel has better possibility for strong fixation than unidirectional laminated panel.
Keywords (ePrints, secondary language):	timber structures;wall anchors;experimental research;cyclic analysis
ID:	8309548