Analiza dvoslojnih lesenih nosilcev

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Language:	Slovenian
Year of publishing:	2009
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[D. Medved]
UDC:	624.011.1:624.072(043.2)
COBISS:	4805985
Views:	2179
Downloads:	643
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Nonlinear analysis of two-layer timber beams
Secondary abstract:	The analysis of effect of contact compliance on a stress-strain state of a two layer timber beams is the main scope of the presented work. First, the simplified procedure according to SIST EN 1995-1-1 standard is applied. Second, an advanced and more accurate non-linear analysis based on the finite element method is considered. There are some extra advantages of using the second method. Besides the elementary results – strain and stress state of a beam, we can also directly calculate slip and uplift at the contact of a timber beam. The parametric study revealed that a simplified procedure is suitable for the analysis of a simply supported beam. A simplified analysis of continuous beam over two fields is not accurate enough because there is a noticeable difference in results according to non-linear analysis.
Secondary keywords:	civil engineering;graduation thesis;two-layer timber beam;simplified analysis;non-linear analysis;interlayer slip;delamination of layers;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	X, 61 str.
Type (ePrints):	thesis
Title (ePrints):	Nonlinear analysis of two-layer timber beams
Keywords (ePrints):	dvoslojni lesen nosilec;poenostavljena analiza;nelinearna analiza;zdrs med slojema;razmikanje slojev
Keywords (ePrints, secondary language):	two-layer timber beam;simplified analysis;non-linear analysis;interlayer slip;delamination of layers
Abstract (ePrints):	V diplomski nalogi je analiziran vpliv podajnosti stika na napetostno in deformacijsko stanje dvoslojnih lesenih nosilcev. Za analizo je uporabljen poenostavljen postopek, kot ga priporoča standard za projektiranje lesenih konstrukcij SIST EN 1995-1-1, ter naprednejša in natančnejša nelinearna elastična analiza, ki temelji na metodi končnih elementov. Prednost nelinearne analize je v tem, da lahko poleg osnovnega napetostnega in deformacijskega stanja dvoslojnega lesenega nosilca neposredno izračunamo tudi zamik ter razmik na stiku med slojema. S parametrično študijo je bilo ugotovljeno, da je poenostavljen postopek primeren predvsem za analizo prostoležečih dvoslojnih nosilcev, medtem ko za analizo kontinuirnega dvoslojnega nosilca preko dveh polj ni primeren, saj nastopijo razlike med rezultati poenostavljenega postopka ter rezultati nelinearne analize.
Abstract (ePrints, secondary language):	The analysis of effect of contact compliance on a stress-strain state of a two layer timber beams is the main scope of the presented work. First, the simplified procedure according to SIST EN 1995-1-1 standard is applied. Second, an advanced and more accurate non-linear analysis based on the finite element method is considered. There are some extra advantages of using the second method. Besides the elementary results – strain and stress state of a beam, we can also directly calculate slip and uplift at the contact of a timber beam. The parametric study revealed that a simplified procedure is suitable for the analysis of a simply supported beam. A simplified analysis of continuous beam over two fields is not accurate enough because there is a noticeable difference in results according to non-linear analysis.
Keywords (ePrints, secondary language):	two-layer timber beam;simplified analysis;non-linear analysis;interlayer slip;delamination of layers
ID:	8310646