diplomska naloga
Grega Lajkovič (Author), Matjaž Dolšek (Mentor), Boštjan Pulko (Thesis defence commission member), Janko Logar (Thesis defence commission member)

Abstract

V diplomski nalogi je obravnavana poenostavljena nelinearna analiza izbranih družinskih hiš na območju Krškega. Osnovo za modeliranje in analizo obravnavanih objektov sta predstavljala standarda Evrokod 6, ki obravnava zidane konstrukcije in Evrokod 8, ki obravnava potresnoodporno projektiranje konstrukcij. Teoretične osnove in zaporedje postopka računa so predstavljene v prvem delu naloge. Na hitro se naloga dotakne nastanka potresov in njihovega vpliva na okolje, opisane so materialne karakteristike opečnih zidov in podane enačbe za račun nosilnosti zidovja. V nadaljevanju so predstavljene teoretične osnove za oceno potresne odpornosti zidanih objektov. V drugem delu naloge je podan primer potresne analize enega izmed objektov, nato pa je predlagan še model normirane potisne krivulje glede na rezultate potisnih analiz štirih značilnih zidanih hiš na območju Krškega. Predlagamo, da nosilnost značilnega zidanega objekta iz opečnih votlakov za šibko os znaša približno 27 % teže objekta, pomik etaže na meji porušitve pa približno 0.42 % višine etaže. Približno potisno krivuljo za izbran objekt lahko določimo enostavno tako, da normirane prečne sile s predlaganega modela potisne krivulje pomnožimo s težo objekta, normirane pomike pa z višino pritlične etaže, ki se za zidane objekte malo spreminja. Potrebno je poudariti, da so rezultati take ocene vsekakor precej negotovi tako zaradi uporabe precej poenostavljenih nelinearnih modelov, kot tudi zaradi majhnega števila objektov, ki smo jih upoštevali pri določitvi normirane potisne krivulje značilnih zidanih objektov. Zato je uporaba predlaganega modela primerna le za hitre ocene potresne odpornosti večjega števila objektov.

Keywords

gradbeništvo;diplomska dela;UNI;GR;potresno inženirstvo;Evrokod;zidana stavba;potisna analiza;potresna odpornost;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [G. Lajkovič]
UDC: 624.042.7(497.4)(043.2)
COBISS: 6821473 Link will open in a new window
Views: 11949
Downloads: 587
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Other data

Secondary language: English
Secondary title: ǂA ǂmodel for a simplified seismic analysis of a typical family house in the Krško region
Secondary abstract: The diploma thesis addresses a simplified nonlinear seismic (»pushover«) analysis of selected family houses in the Krško region. Standards Eurocode 6 and 8, which, respectively, deals with masonry buildings and earthquake-resistant design of buildings, were used as a basis for modelling and seismic analysis of the examined houses. The theoretical background and sequences of seismic analysis are presented in the first part of the thesis, where the occurrence of earthquakes and their impact on environment are also briefly addressed. In addition, the mechanical characteristics and the models of resistance of the masonry walls are described. Follow an overview of the theoretical background for seismic performance assessment of masonry buildings. The second part of the thesis presents results of simplified seismic analysis of a family house. At the end of the thesis, the model for normalized pushover curve of masonry buildings in the Krško region is proposed by taking into account the results of seismic evaluation of four examined buildings. It is suggested that an average shear resistance in the weak direction of a building from Krško region, which is constructed by hollow bricks, is around 27 % of its weight, whereas the ultimate storey drifts is around 0.42 % of the storey height. The proposed model makes it possible to assess the pushover curve of the examined building simply by multiplying the normalized shear forces from the model by the weight of the examined building and by multiplying the normalized storey drifts by the storey height. It should be noted that the results of such an assessment is quite uncertain, not only due to the simplified models used for the pushover analysis, but also due to the fact that only a small number of buildings were used in the parametric study. Therefore, the use of the proposed normalized pushover curve is limited and may be suitable only for rapid seismic performance assessment of large number of buildings.
Secondary keywords: graduation thesis;civil engineering;earthquake engineering;Eurocode;masonry building;pushover analysis;seismic resistance;
File type: application/pdf
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: XI, 41 str., 3 pril.
ID: 8708326