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Title:Numerično modeliranje vpliva veznih sredstev na horizontalno nosilnost lesenih okvirnih stenskih elementov
Authors:Kuhta, Milan (Author)
Premrov, Miroslav (Mentor) More about this mentor... New window
Bedenik, Branko (Co-mentor)
Files:.pdf DR_Kuhta_Milan_2010.pdf (7,46 MB)
MD5: FA019FC5D704B49DE21B677BA390E15A
 
Language:Slovenian
Work type:Dissertation (m)
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:Disertacija obravnava vpliv togosti veznih sredstev in vpliv obložnih plošč na nosilnost lesenih okvirnih stenskih elementov pod vplivom horizontalne sile. Okvirni stenski element predstavlja sovprežno konstrukcijo sestavljeno iz lesenega okvirja in obložnih plošč, ki so na okvir pritrjene z mehanskimi veznimi sredstvi - sponkami. Vpliv sponk smo raziskovali z različnimi razdaljami med sponkami in sicer na preizkušancih z razdaljo med sponkami s=3,75 cm, s=7,50 cm in s=15,00 cm. Vpliv obložnih plošč smo raziskovali z različnimi vrstami obložnih plošč in sicer z enojno mavčno - vlakneno oblogo, z dvojno mavčno - vlakneno oblogo in z oblogo z usmerjenim iverjem. Raziskave smo izvedli eksperimentalno, analitično in numerično (MKE). Analitični in še posebej rezultati numeričnega MKE modela se dobro ujemajo z eksperimentalnimi meritvami. Razdalje med sponkami in različne vrste obložni plošč imajo pomemben vpliv na raziskovano silo ob pojavu prve razpoke obložne plošče, silo porušitve, pomik konzolnega dela panelne stene in na zdrs v nateznem in tlačnem območju priključne ravnine med lesenim okvirjem in obložno ploščo, kakor tudi na upogibno in strižno togost panelnih sten.
Keywords:gradbeništvo, mehanika, sovprežne konstrukcije, leseni okvirni stenski elementi, mavčno vlaknaste plošče, plošče z usmerjenim iverjem, vezna sredstva, eksperiment, modeliranje, metoda končnih elementov
Year of publishing:2010
Publisher:[M. Kuhta]
Source:Maribor
UDC:624.011.1(043.3)
COBISS_ID:14409750 New window
NUK URN:URN:SI:UM:DK:WXRX1QX8
Views:4193
Downloads:277
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Categories:KTFMB - FG
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Secondary language

Language:English
Title:Numerical modelling of fasteners influence on timber-framed walls horizontal bearing capacity
Abstract:The thesis deals with fasteners influence and sheating board material influence on horizontal bearing capacity of timber - framed walls. Treated timber - framed wall composed of a timber frame and sheating board fixed by mechanical fasteners to the both sides of the timber frame actullay behave like composite structure. Three different groups of test samples with staples distances of s=3,75 cm, s=7,50 cm and s=15,00 cm were experimentally, analyticaly and numericaly (FEM) analysed and compared. Test samples with single fibre-plaster board, double fibre-plaster board and oriented strand board were analysed in the same manner. Obtained analitical and numerical results show good agreement with measured results. The fasteners spacing and various sheating boards have an important influence on cracks appearing in tensile area of the sheating board, on the ultimate failure force, maximum cantilever bending deflection, slip in the tensile and compressive zone between sheating boards and timber frame as well as on the bending and shear stiffnesses of the prefabricated timber-framed walls.
Keywords:civil engineering, mechanics, composite structures, timber framed walls, fibre plaster boards, oriented strand board, fasteners, experiment, modelling, finite element method


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