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Projektiranje in ocena požarne odpornosti izoliranega AB stebra v večetažni poslovni stavbi : diplomska naloga
Erklavec, Klemen (Author), Bratina, Sebastjan (Mentor) More about this mentor... This link opens in a new window, Hozjan, Tomaž (Co-mentor), Logar, Janko (Thesis defence commission member), Peternelj, Jože (Thesis defence commission member), Četina, Matjaž (Thesis defence commission member)

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Abstract
V diplomski nalogi se ukvarjamo s projektiranjem armiranobetonskega stebra v pogojih normalne uporabe in v pogojih požara. Obravnavan steber se nahaja v pritličju večetažne poslovne stavbe. Stebri so v višini stropov med seboj povezani z armiranobetonskimi gredami in tvorijo prostorske armiranobetonske okvire. Okviri pa skupaj s stenami predstavljajo konstrukcijske sisteme za prenos obtežbe v navpični in vodoravni smeri. Ugotovimo, da je togost stebrov v vodoravni smeri v primerjavi s togostjo sten zanemarljiva, zato predpostavimo, da stebri sodelujejo le pri prevzemu navpične obtežbe, pri prevzemu vodoravne obtežbe zaradi vpliva vetra in potresa pa ne sodelujejo. Najprej steber projektiramo na osno in strižno obremenitev v pogojih normalne uporabe. Pri dimenzioniranju moramo upoštevati učinke teorije drugega reda. V nadaljevanju steber projektiramo še v pogojih požara. Določimo ustrezen projektni požar. Požarno odpornost armiranobetonskega stebra ocenimo z uporabo tabeliranih vrednosti. Ugotovimo, da je požarna odpornost stebra s prečnim prerezom 40/40 cm glede na kriterij nosilnosti R 120, stebra s prerezom 35/35 cm R 90, stebra s prerezom 30/30 cm pa R 60.

Language:Slovenian
Keywords:gradbeništvo, diplomska dela, VSŠ, požarna odpornost, AB steber, požarne krivulje, poenostavljene računske metode, OZone, požarni scenarij, temperatura
Work type:Undergraduate thesis (m5)
Tipology:2.11 - Undergraduate Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2012
Publisher:[K. Erklavec]
Number of pages:XII, 78 str.
Place:Ljubljana
UDC:624.012.45:699.81(043.2)
COBISS.SI-ID:6043233 Link is opened in a new window
Views:1618
Downloads:339
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Secondary language

Language:English
Title:Design and assesment of fire resistance of isolated RC column in a multi-storey office building
Abstract:
The B.Sc. Thesis deals with the design of reinforced concrete column under conditions of normal use and under conditions of fire. The treated column is located in the ground floor of a multi-storey office building. At the ceiling height the columns are interconnected with reinforced concrete beams and form reinforced concrete spatial frames. Frames together with the walls represent structural systems for the transfer of loads in vertical and horizontal directions. It is determined that the stiffness of columns in the horizontal direction is compared to the rigidity of the walls negligible, so we assume that columns are only involved in taking vertical loads, while the takeover of the load due to the effect of wind and earthquake is not involved. First, we designed a column to axial and shear loads in normal conditions of use. For the design we must take into account the effects of second-order theory. The appropriate design in case of fire. Fire resistance of reinforced concrete column is estimated using tabulated values. It is determined that the fire resistance of the column cross-section of 40/40 cm according to the criterion load is R 120, of column cross-section 35/35 cm is R 90 and column with section 30/30 cm is R 60. ?

Keywords:graduation thesis, civil engineering, fire resistance, RC column

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