20.500.12556/RUL-32715
Analiza armiranobetonskih okvirov s polnili na potresno obtežbo
diplomska naloga
Seismic analysis of infilled reinforced concrete frames
V diplomski nalogi je predstavljen vpliv polnil na obnašanje armiranobetonskih okvirov med potresi. Opisane so teoretične osnove in pravila za potresno analizo takih konstrukcij v skladu s standardom Evrokod 8. Za elastično analizo je bil uporabljen program ETABS. Opravljena je bila študija vpliva polnil na štirietažni armiranobetonski stavbi, kjer je bil zajet tudi primer mehke spodnje etaže.
Analiziran je bil vpliv modelnih negotovosti na globalne in lokalne potresne zahteve. Poleg klasičnega modela z eno nadomestno diagonalo smo polnila modelirali še z upoštevanjem dveh ali treh diagonal ter s ploskovnimi elementi. Ugotovljeno je, da z makro modeli na osnovi več diagonal nekoliko natančneje napovemo lokalne vplive polnil na prečne sile v stebrih in gredah, kot z modelom na
osnovi ene diagonale. Vendar se izkaže, da je lokalne vplive na steber možno simulirati tudi na osnovi najbolj enostavnega modela, ki temelji na eni tlačni diagonali, če del sile iz diagonale upoštevamo pri računu prečne sile na steber.
The effect of masonry infills on seismic behaviour of reinforced concrete frames is described. In the first part of the thesis, the theoretical background and procedure for seismic analysis of such structures according to Eurocode 8 are presented. The effect of masonry infill was demonstrated by means of an example of four-storey reinforced-concrete building, including the consideration of the effect of soft storey mechanism. All linear elastic analyses were performed with ETABS software. The main objective of the study was to assess the impact of the modelling uncertainties on the global and local engineering demand parameters. In addition to the classical macro model of infill, which is based on single-strut approach, the infill panel was modelled by the two-strut or the three-strut approach as well as by the shell elements taking into account the nonlinear contact between the masonry infill and the adjacent frame. It was found that the macro models based on multiple struts can simulate local effects on columns with slightly greater accuracy as those obtained on the basis of single-strut model. However, it is shown that the local effects on columns due to infills can be simulated also by the simple single-strut model if a certain proportion of the force in the strut is considered for the evaluation of the internal forces in the columns.
gradbeništvo
promet
diplomska dela
UN
armiranobetonski okvir
vpliv polnil
potresna obtežba
standardi EVROKOD 8
true
false
false
[L. Novak]
Slovenski jezik
Angleški jezik
Diplomsko delo/naloga
2015-07-10 10:19:11
2015-07-10 10:19:11
2022-12-16 11:23:28
0000-00-00 00:00:00
2013
0
Ljubljana
2013
Ljubljana
XI, 35 str., [8] str. pril
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
624.012.4(043.2)
6393697
BG1056_Novak.pdf
BG1056_Novak.pdf
1
C0C4912850FB999F228541A6E0FC1BA8
b40fdf215c17d4092b2935a9a47bfaae65d1343373cd024724326ab046dcca02
e6f7154b-a1b2-11eb-a523-00155dcfd717
20.500.12556/rul/61f8ae0d-7482-4603-84dd-5603600daf77
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=98070
Fakulteta za gradbeništvo in geodezijo
0
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