Vpliv razvrščanja lesenih lamel na trdnost in deformabilnost lesenih lepljenih nosilcev

diplomska naloga

Jernej Ocepek (Author), Goran Turk (Mentor), Tomo Cerovšek (Thesis defence commission member), Drago Saje (Co-mentor)

Abstract

Pri proizvodnji lepljenih nosilcev je kvaliteta vgrajenega materiala ključnega pomena, saj neposredno narekuje kvaliteto proizvoda. Mehanske lastnosti je pri lesu težko določiti, saj lahko točne podatke dobimo le s porušitvijo vzorca. Mehanske lastnosti lesa pa lahko tudi ocenimo s katero od neporušnih metod in ga nato razvrstimo v ustrezne trdnostne razrede. V diplomskem delu sem opisal nekaj neporušnih metod za določanje mehanskih lastnosti lesa. Opisal sem proizvodno linijo lepljenih nosilcev slovenskega proizvajalca Hoja d.d., kjer sem izvedel del meritev, uporabljenih pri raziskovalnem delu. Na koncu sem na svojem vzorcu, ki je obsegal 205 kosov lesa, kot tudi na vzorcu več kot 1000 kosov lesa iz vse Slovenije pokazal, da je mogoče z ustrezno razvrščenim lesom in pametnim zlaganje lamel, sestavljati lepljene nosilce najvišjih trdnostnih razredov.

Keywords

gradbeništvo;diplomska naloga;VSŠ-B;leseni lepljeni nosilci;razvrščanje lesa;mehanske lastnosti lepljencev;neporušne metode;

Data

Language:	Slovenian
Year of publishing:	2014
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[J. Ocepek]
UDC:	624.072.2:691.11(043.2)
COBISS:	6753377
Views:	1680
Downloads:	510
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Effect of wood grading on mechanical properties of glued laminated timber
Secondary abstract:	In glued laminated timber (glulam) manufacture, the quality of wood used in the process is of utmost importance, for it dictates the quality of the finished product. The mechanical properties of wood are hard to determine, and can be accurately measured only by destruction of the measured samples. Mechanical properties can also be estimated with any of the several non-destructive methods, described in my thesis, that can assign a specific strength class to a piece of timber. I have also described the production line of glulam on the case of Slovenian company Hoja d.d., where I did the measurements used in my thesis. Based on mathematical model using my sample of 205 measurements and on the data collected by the previous studies, I have shown, that using properly graded timber, we could produce glulam of the highest quality using only Slovenian wood.
Secondary keywords:	graduation thesis;civil engineering;glued laminated timber;wood grading;mechanical properties of glulam;non-destructive methods;
File type:	application/pdf
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	X, 56 str.
ID:	8708236