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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F04%3A01100181%21RIV%2F2005%2FGA0%2F211105%2FN
rdf:type
n12:Vysledek skos:Concept
dcterms:description
A computationally attractive procedure is proposed to formulate a Periodic Unit Cell (PUC) for a masonry structure with disordered geometry. Such a unit cell, in order to represent the original structure in a proper sense, results from matching geometrical statistics related to the original structure and the idealized unit cell, respectively. The geometrical input data are obtained from digitized photographs of real historical structures. The parameters of the unit cell then follow from a minimization problem, defined in terms of suitably selected statistical descriptors such as two-point probability functions. The resulting optimization problem is efficiently solved by a global optimization technique based on genetic algorithms. The quality of the periodic unit cell is judged by numerical evaluation of elastic effective properties. V tomto příspěvku je představen výpočetní rámec pro analýzu zděných konstrukcí s imperfektní mikrostrukturou, který je aplikován na analýzu Karlova mostu v Praze. A computationally attractive procedure is proposed to formulate a Periodic Unit Cell (PUC) for a masonry structure with disordered geometry. Such a unit cell, in order to represent the original structure in a proper sense, results from matching geometrical statistics related to the original structure and the idealized unit cell, respectively. The geometrical input data are obtained from digitized photographs of real historical structures. The parameters of the unit cell then follow from a minimization problem, defined in terms of suitably selected statistical descriptors such as two-point probability functions. The resulting optimization problem is efficiently solved by a global optimization technique based on genetic algorithms. The quality of the periodic unit cell is judged by numerical evaluation of elastic effective properties.
dcterms:title
Homogenization of Stone Masonry with Irregular Geometry Homogenization of Stone Masonry with Irregular Geometry Homogenizace kamenného zdiva s nepravidelnou geometrií
skos:prefLabel
Homogenization of Stone Masonry with Irregular Geometry Homogenization of Stone Masonry with Irregular Geometry Homogenizace kamenného zdiva s nepravidelnou geometrií
skos:notation
RIV/68407700:21110/04:01100181!RIV/2005/GA0/211105/N
n3:strany
445 ; 446
n3:aktivita
n6:P
n3:aktivity
P(GA103/04/1321)
n3:dodaniDat
n8:2005
n3:domaciTvurceVysledku
n9:3638464 n9:4695046 n9:4795180
n3:druhVysledku
n20:D
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
566639
n3:idVysledku
RIV/68407700:21110/04:01100181
n3:jazykVysledku
n19:eng
n3:klicovaSlova
global stochastic optimization; irregular structure; masonry homogenization; random morphology; statistically optimized periodic unit cells
n3:klicoveSlovo
n4:global%20stochastic%20optimization n4:random%20morphology n4:statistically%20optimized%20periodic%20unit%20cells n4:masonry%20homogenization n4:irregular%20structure
n3:kontrolniKodProRIV
[CC01DCAF8256]
n3:mistoKonaniAkce
Lisabon
n3:mistoVydani
Stirling
n3:nazevZdroje
Proceedings of the Seventh International Conference on Computational Structures Technology
n3:obor
n7:JN
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n17:GA103%2F04%2F1321
n3:rokUplatneniVysledku
n8:2004
n3:tvurceVysledku
Šejnoha, Michal Šejnoha, Jiří Zeman, Jan
n3:typAkce
n10:WRD
n3:zahajeniAkce
2004-09-07+02:00
s:numberOfPages
2
n14:hasPublisher
Civil-Comp Press Ltd
n21:isbn
0-948749-93-8
n11:organizacniJednotka
21110