diplomska naloga
Povzetek
V diplomski nalogi je narejena ocena potresne odpornosti enodružinske zidane stavbe v Črnomlju, katere del je bil zgrajen leta 1964, dograditev pa je sledila leta 2000. Dela stavbe sta med seboj ločena z vertikalno dilatacijo, zato smo analizo izvedli za oba dela stavbe posebej. Za oceno potresne odpornosti stavbe smo uporabili metodo N2, ki temelji na nelinearni statični (potisni) analizi in je del standarda Evrokod 8. Potisno analizo smo najprej izvedli na nivoju etaž in s tem dobili potisne krivulje etaž, ki smo jih nato združili v potisne krivulje stavbe. Pri določitvi nosilnosti zidov smo upoštevali tri karakteristične mehanizme porušitve, in sicer upogibno porušitev zidovja, strižno porušitev z zdrsom po naležni regi ter strižno porušitev s pojavom diagonalnih razpok. Na zidovju ni bilo opravljenih preiskav, zato so bile materialne karakteristike zidovja povzete iz literature. Pri oceni potresne odpornosti smo upoštevali mejno stanje omejitve poškodb, mejno stanj velikih poškodb in mejno stanje blizu porušitve. Analizo smo izvedli ločeno za smeri X in Y. Na podlagi kontrol smo ugotovili, da je potresna odpornost starejšega dela stavbe višja od potresne odpornosti novejšega dela stavbe, kar je posledica slabe tlorisne zasnove novejšega dela stavbe. Zaključili smo, da stavba ni potresno odporna glede na zahteve standarda Evrokod 8. Dodatno smo izvedli analizo brez upoštevanja strižne porušitve z zdrsom po naležni regi v spodnji etaži, ki se sodeč po izkušnjah pojavlja le v zgornjih etažah. Tudi v tem primeru kontrole mejnih stanj niso bile v celoti izpolnjene, čeprav se je nosilnost stavbe povečala.
Ključne besede
gradbeništvo;diplomske naloge;UNI;GR;B-GR;zidana stavba;potisna analiza;metoda N2;Evrokod;nelinearna analiza;potresna odpornost;potresno inženirstvo;
Podatki
Jezik: |
Slovenski jezik |
Leto izida: |
2020 |
Tipologija: |
2.11 - Diplomsko delo |
Organizacija: |
UL FGG - Fakulteta za gradbeništvo in geodezijo |
Založnik: |
[D. Kunič] |
UDK: |
624.042.7(043.2) |
COBISS: |
44825347
|
Št. ogledov: |
597 |
Št. prenosov: |
173 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
ǂThe ǂearthquake resistance analysis of a masonry building using a simplified nonlinear analysis |
Sekundarni povzetek: |
The earthquake resistance of a single-family detached masonry building in Črnomelj, Slovenia, is evaluated in this bachelor thesis. The building was constructed in 1964 and reconstructed in 2000. As the two parts of the building are connected through a vertical expansion joint, the seismic analysis was performed for each part individually. The building%s earthquake resistance was assessed by the N2 method, which is based on a non-linear static (pushover) analysis and is a part of the Eurocode 8 standard. The pushover analysis was first performed at the storey level, thus obtaining the pushover curves of the storeys, which were then merged into the pushover curve of the entire building. The bearing capacity of each wall was estimated by the simplified model taken into account the flexural failure, the shear failure due to sliding and the shear failure due to formation of diagonal cracks. The material characteristics of the building%s walls were taken from the literature due to the absence of in-situ measurements. In the assessment of earthquake resistance, the damage limitation limit state, significant damage limit state and near collapse limit state were considered. The analysis was conducted separately for the X and Y direction of seismic loading. On the basis of the limit states verification, it was found that the earthquake resistance of the older part of the building performed is better than that of the new part, which is the consequence of the poor design of the plan of the new part of the building. It was concluded that the building is not earthquake resistant accorindg to the Eurocode 8 requirements. Additionally, a pushover analysis without consideration of the shear failure of the walls due to sliding was performed, because such failure modes had been observed only in higher stories in the past earthquakes. In this case, the verifications of limit states were also not entirely fulfilled although the strength of the building was increased. |
Sekundarne ključne besede: |
graduation thesis;civil engineering;masonry building;pushover analysis;N2 method;Eurocode;nonlinear analysis;earthquake resistance;earthquake engineering; |
Vrsta dela (COBISS): |
Diplomsko delo/naloga |
Študijski program: |
0 |
Konec prepovedi (OpenAIRE): |
1970-01-01 |
Komentar na gradivo: |
Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo |
Strani: |
X, 35 str., [10] str. pril. |
ID: |
12046413 |