21 results on '"Akmadžić, Vlaho"'
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2. The response of the plate structure to the change in the shape of FE and the quality of the material, CYPE/TOWER
- Author
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Lozančić, Matej, primary, Mandić, Marko, additional, and Akmadžić, Vlaho, additional
- Published
- 2023
- Full Text
- View/download PDF
3. Behavior of a two-story planar frame for different approach to soil modeling
- Author
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Akmadžić, Vlaho, primary and Vrdoljak, Anton, additional
- Published
- 2022
- Full Text
- View/download PDF
4. Construction of toll station building on the highway
- Author
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Lozančić, Matej, primary and Akmadžić, Vlaho, additional
- Published
- 2020
- Full Text
- View/download PDF
5. Influence of the soil reaction coefficient change on the steel grid foundation
- Author
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Akmadžić, Vlaho, Vrdoljak, Anton, Balić, Ivan, and Borisov, Borislav
- Subjects
Steel grid structure ,Soil reaction coefficient ,Modelling ,Foundation - Abstract
When performing the objects on the distant locations, it is necessary to make the foundation structure with as little ground impact as possible. One of the usual choices is the rigid steel grid construction on the shallow foundations. Many authors worked on the problem of defining calculation expression for the soil reaction coefficient, which represents the behaviour of the ground. In the programmatically solution called SE_Calc values of the soil reaction coefficient are calculated by each author. The paper shows the effects of different modelling of the soil reaction coefficient on the steel grid structure, rigid or soft. The structural response and the contact with the soil are analysed.
- Published
- 2018
6. MODELIRANJE KONSTRUKCIJE URBANE VILE.
- Author
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Ramljak, Donata and Akmadžić, Vlaho
- Subjects
- *
ARCHITECTURAL designs , *URBAN planning , *COASTAL development , *STRUCTURAL design , *DOMESTIC architecture , *WALLS - Abstract
Considering the development of tourism in the coastal area, there are more and more demands for the construction of urban villas. Therefore, this paper presents the structural response for the design solution of an urban villa located in the Croatian coastal area. The original architectural design of the villa is the work of Mexican architect Elias Rizo and is recorded under the name of "VR Tapalpa House / Elias Rizo Arquitectos". Several variant solutions were modeled. A load bearing system consisting of a mixed wall part (left lamella) and a skeleton part (right lamella) suggested itself as the final optimal structural solution. [ABSTRACT FROM AUTHOR]
- Published
- 2019
7. MODELING OF URBAN VILLA STRUCTURE.
- Author
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Ramljak, Donata and Akmadžić, Vlaho
- Subjects
- *
WALLS , *DOMESTIC architecture , *URBAN planning , *ARCHITECTURAL designs , *COASTAL development , *STRUCTURAL design - Abstract
Considering the development of tourism in the coastal area, there are more and more demands for the construction of urban villas. Therefore, this paper presents the structural response for the design solution of an urban villa located in the Croatian coastal area. The original architectural design of the villa is the work of Mexican architect Elias Rizo and is recorded under the name of "VR Tapalpa House / Elias Rizo Arquitectos". Several variant solutions were modeled. A load bearing system consisting of a mixed wall part (left lamella) and a skeleton part (right lamella) suggested itself as the final optimal structural solution. [ABSTRACT FROM AUTHOR]
- Published
- 2019
8. Građevna statika II
- Author
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Mihanović, Ante, Trogrlić, Boris, and Akmadžić, Vlaho
- Subjects
jedinično stanje pomaka ,kontinuirani nosač ,metoda pomaka ,metoda sila ,okviri ,ploče ,stanje pune upetosti ,uvrtanje ,zidovi i zidni nosači - Abstract
Udžbenik Građevna statika II. namijenjen je studentima preddiplomskog i diplomskog studija građevinskih fakulteta, ali i poslijediplomantima na kolegijima u granama Mehanike konstrukcija, te Inženjerskih konstrukcija. Veliki broj obrađenih statičkih sustava čini ga korisnim pomagalom inženjerima koji se bave projektiranjem i proračunima konstrukcija. U udžbeniku su isprepleteni klasični pristup građevnoj statici s temeljnim objašnjenjima pojmova na jednostavnim sustavima s novijim pristupima, koji naglasak imaju na razvoju matričnih i numeričkih postupaka i fizikalnim pokusima. U prvom poglavlju razrađena je materija stanja jediničnih pomaka na pravocrtnom punostijenom nosaču. Prikazana su pojedinačna stanja deformiranja, cjelovito stanje deformiranja u ravnini i prostoru, utemeljeni na načelima metode pomaka i poduprti matričnim prikazom. Metoda pomaka u izvornom obliku primijenjena na ravninske punostijene nosače prikazana je u drugom poglavlju. Treće poglavlje namijenjeno je prikazu metode pomaka u primjeni na prostorne punostijene nosače s težištem na prostorne okvirne konstrukcije s i bez krutih prečki. Četvrto poglavlje posvećeno je primjeni metode pomaka na sustave punostijenih nosača što obuhvaća: gredne kontinuirane nosače, okvirne nosače u ravnini, zauzdane okvirne nosače, lukove u ravnini, roštiljne nosače, prostorne okvire i prostorne sustave s lukovima. U petom poglavlju obrađena je materija iz područja ploča. Zidovi i zidni nosači predmet su razmatranja u šestom poglavlju. Složenice, odnosno naborane konstrukcije, kao zasebna vrsta plošnih konstrukcija nastala sparivanjem ploča i zidnih nosača, predmet je razmatranja u sedmom poglavlju. U osmom poglavlju je prikazana primjena numeričkih modela na statičke zadaće tankih ljusaka. Deveto poglavlje namijenjeno je materiji konstrukcija koje su posljedica bilo koje kombinacije prethodno izloženih te se po toj logici nazivaju složenim konstrukcija. U desetom poglavlju obrađuje se problematika pogrešaka u statičkom, a naročito u numeričkom modeliranju. U jedanaestom poglavlju izložen je kratak osvrt na višeskalno modeliranje koje ima i praktičnu korist u primjeni na proračune linijskih nosača. U prvom dodatku obrađena je tradicionalna metoda sila u vrlo reduciranom opsegu iz poznatih razloga što je u računalnim programima, koncipiranim na metodi pomaka, praktički isključena iz svakodnevne uporabe. U drugom dodatku, u vrlo sažetom obliku, prikazane su tradicionalne iterativne metode za statičke proračune punostijenih nosača.
- Published
- 2014
9. Osvrt na nazivlje tradicijskih alata u obradi kamena na području Hercegovine.
- Author
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Akmadžić, Vlaho, Vrdoljak, Anton, and Zelenika, Marko
- Abstract
Due to its specificity, the reconstruction of the stone-built masonry facilities in Herzegovina was made by a smaller number of construction companies. The reason for this is primarily reflected in the small number of skilled labour and the availability of specific tools. One of the companies that has been particularly prominent in this field is the company DZG "Građevinar Fajić" d.o.o. headquartered in Mostar, and which is evidenced by numerous objects made by them. Due to the limited number of pages in this paper, only some examples of traditional tools used by this company for stone processing will be mentioned in order to encourage other authors to investigate this phenomena in the area of Herzegovina. Finally, an example of a recently constructed simplest walled stone building is cited. [ABSTRACT FROM AUTHOR]
- Published
- 2018
10. Determination of the soil reaction coefficient value - software solution.
- Author
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Akmadžić, Vlaho and Vrdoljak, Anton
- Subjects
- *
SIMULATION methods & models , *COMPUTER software - Abstract
In numerical modeling of structures, it is necessary to model the soil on which the structures rest. This soil simulation is performed through the Winkler springs model. In the simplest case of shallow foundations, this is done through the coefficient of soil reaction. Since a large number of authors have dealt with this topic, for the needs of a more reliable modeling, the SE_Calc software solution has been developed. The subgrade reaction is calculated on the templates of several authors in order to graphically display their relationships. [ABSTRACT FROM AUTHOR]
- Published
- 2018
11. Određivanje vrijednosti koeficijenta reakcije tla - programsko rješenje.
- Author
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Akmadžić, Vlaho and Vrdoljak, Anton
- Subjects
- *
COMPUTER software , *SIMULATION methods & models - Abstract
In numerical modeling of structures, it is necessary to model the soil on which the structures rest. This soil simulation is performed through the Winkler springs model. In the simplest case of shallow foundations, this is done through the coefficient of soil reaction. Since a large number of authors have dealt with this topic, for the needs of a more reliable modeling, the SE_Calc software solution has been developed. The subgrade reaction is calculated on the templates of several authors in order to graphically display their relationships. [ABSTRACT FROM AUTHOR]
- Published
- 2018
12. ČELIČNI MOST NA MAGISTRALNOM PUTU M-5.
- Author
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Akmadžić, Vlaho and Rako, Gabrijel
- Abstract
This paper presents the project solution of the steel road bridge on the highway M-5, in the Vitez - Travnik direction. The bridge design was inspirited by the existing bridge already built in Italy, in Lazio. The name of the bridge is "PONTE DELLA SCIENZA" (The Scientists bridge). The characteristic of this bridge is that the spatial structure consists of two different static systems: First part of the structure is the spindle static system. The second part of the structure is cantilever arm supported by the two piers and concrete foundation. For this reason, due to the specificity of the construction, the analysis and dimensioning of each segment was performed separately, considering segment interactions. [ABSTRACT FROM AUTHOR]
- Published
- 2017
13. Nonlinear numerical model for seismic analysis
- Author
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Mihanović, Ante, Trogrlić, Boris, Akmadžić, Vlaho, and Čolak, Ivo
- Subjects
material nonlinearity ,geometrical nonlinearity ,incremental procedure ,equilibrium curve ,target displacement ,capacity curve - Abstract
This paper presents a possible application of materially and geometrically nonlinear models on nonlinear static analysis of spatial frames according to EN EUROCODE 8. The main assumptions of a developed model are described in brief. The model very accurately constructs the equilibrium curve (pushover curve) as the basis for application of the static nonlinear analysis of seismic effect. In a simplified way, this paper presents the application of the method of target displacement as the basis for the method of bearing capacity and then also the method of bearing capacity itself. Cases of uniform and modal types of seismic loads were elaborated through examples. Attention was paid to values of displacements of the original mathematical model and their comparison with target displacements defined according to EN ECS. This model analyzed: (1) RC frames of various types and numbers of stories, (2) flexural walls, free-standing and connected with panels, and (3) walls with openings. The conclusion presents engineer's comment on the structural bearing of specific RC systems, with emphasis on the extent of expected deformations.
- Published
- 2008
14. Model velikih pomaka u analizi plošnih i linijskih konstrukcija
- Author
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Akmadžić, Vlaho
- Subjects
numerički model ,geometrijska nelinearnost ,materijalna nelinearnost ,plošne konstrukcije ,traženje oblika - Abstract
U ovom radu izložen je razvijeni numerički model velikih pomaka koji služi za rješavanje zadaće stabilnosti i nosivosti plošnih i linijskih konstrukcija. Težište rada je na razvoju modela za ljuske. Modelom se uvažava geometrijska nelinearnost, dok se materijalnu nelinearnost uvažava samo kod linijskih elemenata. Slom nastupa prekoračenjem nosivosti i/ili gubitkom stabilnosti pojedinog elementa ili konstrukcije. Model materijalne nelinearnosti vezan je za odgovor, općenito gledano, kompozitnog poprečnog presjeka linijskog dijela konstrukcije, pri nelinearnim svojstvima materijala od kojih je načinjen. Geometrijski nelinearni numerički model, koji uspostavlja ravnotežu na deformiranom položaju, uključuje teoriju velikih pomaka. Rješenje zadaće velikih pomaka temelji se na uzastopnoj primjeni inkrementalnog pristupa Potpune Lagrangeove formulacije malih pomaka. Sustav linijskih konstrukcija se diskretizira na pravocrtne dvočvorne konačne elemente ili podelemente sa šest stupnjeva slobode po čvoru. Diskretizacija poprečnog presjeka je vlaknasta, uz opis svakog vlakna preko σ ε − dijagrama. Usporedno tijelo diskretizirano je s osmočvornim kuboidnim elementima sa šest stupnjeva slobode po čvoru. Sustav plošnih konstrukcija diskretizira se konačnim izotropnim elementom ljuske. Konačni element ima mogućnost opisa ploha hiperboličko paraboloidnog oblika. U suštini vrši se preslikavanje zakrivljene plohe u ravninu, te se ide u daljnji proračun s ravninskim (flat) četveročvornim konačnim elementima ljuske s po šest stupnjeva slobode po čvoru. Element ljuske je nastao sprezanjem ravninskog membranskog i savojnog stanja. Membransko stanje ima stupanj slobode uvrtanja oko osi okomite na ravan, tako da novi konačni element ima svih šest stupnjeva slobode po čvoru. Konačni element ljuske nije izoparametarski, jer sadrži dvije skupine funkcija. Prva služi za opis geometrije, odnosno geometrijsko preslikavanje, dok druga služi za opis funkcijskog preslikavanja. Numerički model implementiran je u računalni program za potvrdu točnosti modela i praktičnu primjenu u analizi modela sastavljenog od plošnih i linijskih konstrukcija. Proračun daje prostornu putanju ravnoteže odabranog čvora, slijed plastifikacije kritičnih poprečnih presjeka linijske konstrukcije, naponsko stanje plošne konstrukcije i prikaz deformacije konstrukcije u svakom inkrementalnom koraku. Opisane su mogućnosti primjene modela na analiziranje pojedinih zadaća (zidane konstrukcije, stabilnost plošnih konstrukcija). Također se pokazalo kako, u uvjetima kada linijski i plošni elementi budu dovoljno tanki, model može biti primijenjljiv na zadaće traženja oblika konstrukcija od platna i užadi. Model je testiran na nekoliko primjera iz literature. Na temelju svih provedenih analiza, na kraju su navedeni proistekli zaključci i smjernice daljnjeg razvijanja modela.
- Published
- 2008
15. PRONELL
- Author
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Mihanović, Ante, Trogrlić, Boris, and Akmadžić, Vlaho
- Subjects
materijalna nelinearnost ,geometrijska nelinearnost ,stabilnost ,ljuska ,prostorni okvir - Abstract
PRONELL je računalni program za geometrijski nelinearnu analizu prostornih konstrukcija sastavljenih od plošnih i linijskih elemenata po teoriji velikih pomaka. Budući je model plošnih konstrukcija ukomponiran u model prostornih linijskih konstrukcija, programski paket ima mogućnost materijalne nelinearne analize linijskih konstrukcija. Izvorni kod napisan je u programskom jeziku FORTRAN, a grafički postprocesor je u obliku DXF (drawing exchange file) datoteke. Programom je moguća pratiti ponašanje konstrukcija od ljuski i greda, u uvjetima materijalne i geometrijske nelinarnosti, pri djelovanju opterećenja od nultog do slomnog.
- Published
- 2008
16. Geometrijski nelinearan numerički model krovnih prostornih rešetki po teoriji malih i velikih pomaka
- Author
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Akmadžić, Vlaho, Mihanović, Ante, and Trogrlić, Boris
- Subjects
Krovne prostorne rešetke ,veliki i mali pomaci ,nulta konfiguracija - Abstract
Izvršena je parametarska analiza stabilnosti i nosivosti prostornih rešetkastih konstrukcija po teoriji malih i velikih pomaka. Elementi prostornih rešetki diskretizirani su s linijskim 1D KE. U cilju modeliranja nelinearnosti poprečnog presjeka i uzduž elementa, rabi se diskretizacija poprečnog presjeka na pravokutne dijelove u pravcima osi presjeka. Prikazan je korišteni geometrijski nelinearan numerički model stabilnosti i nosivosti prostornih linijskih konstrukcija po teoriji malih i velikih pomaka. Rješenje zadaće velikih pomaka temelji se na uzastopnoj primjeni inkrementalnog pristupa potpune Lagrange-ove formulacije malih pomaka. Primjena numeričkog modela je prikazana na krovnim prostornim rešetkama. U primjerima se nije uzimala u obzir geometrijska nesavršenost sustava. Kombinirane su različite vrste ispune i krutosti, dok su gabaritne dimenzije konstrukcije ostale nepromijenjene. Prikazan je utjecaj ovih promjena na duljine izvijanja i pomake karakterističnih točaka konstrukcije. Uspoređeni su rezultati analize nastali primjenom dviju različitih teorija.
- Published
- 2007
17. ANALIZA OPTEREĆENJA PROIZVODNE HALE.
- Author
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Akmadžić, Vlaho, Mikulić, Željko, and Tadić, Mia
- Abstract
This paper deals with analysis of loads on a specific hall structure positioned in the direction north-south. A particular site, further specified in the paper, was selected in order to be able to adopt specific parameters required for the calculation. The analysis of loads was conducted in accordance with European standards. Since national supplements have not yet been adopted in our country and Eurocodes are inapplicable, equivalent data from Croatia were adopted. [ABSTRACT FROM AUTHOR]
- Published
- 2016
18. Nelinearni numerički model prostornih rešetki po teoriji malih i velikih pomaka
- Author
-
Akmadžić, Vlaho
- Subjects
prostorna rešetka ,stabilnost ,geometrijska nelinearnost - Abstract
U ovom radu je izvršena parametarska analiza stabilnosti i nosivosti prostornih rešetkastih konstrukcija po teoriji malih i velikih pomaka. Prikazan je korišteni geometrijski nelinearni numerički model stabilnosti i nosivosti prostornih linijskih konstrukcija po teoriji malihh i velikih pomaka.
- Published
- 2004
19. Stability analysis of steel space frames under large displacement
- Author
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Mihanović, Ante, Trogrlić, Boris, Akmadžić, Vlaho, and Matejiček, Franjo
- Subjects
prostorni okvir ,veliki pomaci ,nulta konfiguracija ,usporedno tijelo - Abstract
The incremental application of the small displacement theory is a typical solution for the large displacement problems. Updating of the configuration and load is mean differences between small and large displacement approach. One new approach of load and internal forces updating called null configuration is presented in this paper. The tangent method is necessary to apply this approach. Space frames consists of beams and columns. Each of them is discretized by straight 1D finite element (FE). Updating the large translation displacements in the incremental procedure follows from simple summarising of their vectors from the increment to increment. Updating the large rotations is simplified to rotations of the rigid body. This assumption will be acceptable if the FE length is sufficiently small and the internal forces and hence the stresses within FE are expressed within small displacement of each increment.
- Published
- 2003
20. METALNI PJEŠAČKI MOST BULEVAR - DIONICA 1.
- Author
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Akmadžić, Vlaho and Pavičić, Petar
- Abstract
The paper briefly presents a project solution for the pedestrian-cycling bridge, on the observed subsection 1, along the road line Bulevar. The impossibility of pedestrians to use one side of the section and a better connection between the center and the industrial area of Mostar, were the main reasons why this specific location was selected. The inspiration for this project was the pedestrian-cycling bridge in the city of Pescara in Italy (,,Ponte del Mare''). Before the very beginning of the project, it was necessary to pay attention to certain bridge settings (the position and the type of the bridge and the superstructure assembly) and on the actions on the bridge (bridge loads and their effect). The original design was a cable stayed bridge with pylon and anchoring ties, with the lanes separating along the entire bridge. With the choice of a symmetric schedule of cables around the pylon, a part of the route remains unused. Since the unused part is in the straight line, the ideal solution was the combination of a continuous (in straight line) and a cable stayed bridge. Calculation and sizing are, due to the specifics of an individual part of the bridge, made separately. [ABSTRACT FROM AUTHOR]
- Published
- 2016
21. STATIČKI PRORAČUN INDUSTRIJSKE DVORANE.
- Author
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Akmadžić, Vlaho and Radišić, Pero
- Abstract
Block plan of a one-nave industrial hall, 48.0m in system length and 22.5m in width, is served by a bridge crane of the capacity 320kN, span 20.5m, with top edge of the rail (GIŠ) at the level +10.326m. Width and height of the hall are also dependent on overall dimensions of the crane. Taking this into account, as well as cross-sectional dimensions of columns and beams, the two-hinged frame structural system, the system width of the hall of 22.5m and system height of columns of 13.5m were adopted. The roofing is double-skin profiled aluminum sandwich panel (technopanel-polyurethane) with the appropriate thermal insulation and waterproofing. The roof is pitched with a 5.80 slope. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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