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Statements

Subject Item
n2:RIV%2F00216305%3A26110%2F13%3APU105617%21RIV15-GA0-26110___
rdf:type
skos:Concept n10:Vysledek
dcterms:description
Shape optimization in connection with numerical modelling is used to reduce bending and associated flexural stresses in buried concrete arches. Modelling of the arch is carried out via a nonlinear finite element model that accounts for soil constitutive relations, soil-structure interactions, sequential construction stages and soil compaction. Centre line of the arch is parameterized by Bézier curve with three degrees of freedom that are subjected to optimization by genetic and Levenberg-Marquardt algorithm. The paper presents a parametric study which aims to determine the optimal shapes for buried arches of vaious span/rise ratios, backfill depths and foundation soil types. In the second part of the paper it shows a theoretical reduction in tensile stresses obtained by shape optimization of concrete arch culvert witch a 9.4 m span tested at the University of Massachusetts at Amherst. Shape optimization in connection with numerical modelling is used to reduce bending and associated flexural stresses in buried concrete arches. Modelling of the arch is carried out via a nonlinear finite element model that accounts for soil constitutive relations, soil-structure interactions, sequential construction stages and soil compaction. Centre line of the arch is parameterized by Bézier curve with three degrees of freedom that are subjected to optimization by genetic and Levenberg-Marquardt algorithm. The paper presents a parametric study which aims to determine the optimal shapes for buried arches of vaious span/rise ratios, backfill depths and foundation soil types. In the second part of the paper it shows a theoretical reduction in tensile stresses obtained by shape optimization of concrete arch culvert witch a 9.4 m span tested at the University of Massachusetts at Amherst.
dcterms:title
Shape optimization of concrete buried arches Shape optimization of concrete buried arches
skos:prefLabel
Shape optimization of concrete buried arches Shape optimization of concrete buried arches
skos:notation
RIV/00216305:26110/13:PU105617!RIV15-GA0-26110___
n4:aktivita
n14:Z n14:P
n4:aktivity
P(GAP105/10/1156), Z(MSM0021630519)
n4:cisloPeriodika
1
n4:dodaniDat
n8:2015
n4:domaciTvurceVysledku
n6:9387196 n6:5195500 n6:5612217
n4:druhVysledku
n16:J
n4:duvernostUdaju
n13:S
n4:entitaPredkladatele
n18:predkladatel
n4:idSjednocenehoVysledku
104919
n4:idVysledku
RIV/00216305:26110/13:PU105617
n4:jazykVysledku
n20:eng
n4:klicovaSlova
Soil-structure interactions, concrete arch, cut-and-cover structure, shape optimization, genetic algorithm, bézier curve
n4:klicoveSlovo
n7:b%C3%A9zier%20curve n7:shape%20optimization n7:genetic%20algorithm n7:Soil-structure%20interactions n7:cut-and-cover%20structure n7:concrete%20arch
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[5EDD9E0519AD]
n4:nazevZdroje
ENGINEERING STRUCTURES
n4:obor
n9:JM
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n11:GAP105%2F10%2F1156
n4:rokUplatneniVysledku
n8:2013
n4:svazekPeriodika
48
n4:tvurceVysledku
Houšť, Vladimír Miča, Lumír Eliáš, Jan
n4:zamer
n15:MSM0021630519
s:issn
0141-0296
s:numberOfPages
11
n19:doi
10.1016/j.engstruct.2012.11.037
n17:organizacniJednotka
26110