SVIBOR - Papers - project code: 1-02-013

MINISTRY OF SCIENCE AND TECHNOLOGY

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SVIBOR

SVIBOR - Collecting Data on Projects in Croatia


Published papers on project 1-02-013


Quoted papers: 3
Other papers: 20
Total: 23


  1. Type of paper: Book

    Title: CAD of Civil Engineering Structures, Timber structure design and modelling

    Authors:
    Žagar, Zvonimir (55380)
    Editors
    Matutinović, Želimir
    Publisher: Školska knjiga
    ISBN: 624.04:681.3
    Year: 1993
    Number of pages: 421
    Language: hrvatski
    Summary: Development trends in timber structure engineering design. Timberas structural material. Development in structural design. Trendsin standardization (CEN, EUROCODE), symbol's unification(ISO-3898) as requirements for CAD design. Work and energy asintegral parts of- and in- structural design. Lightweightstructures implementation. Air supported structures. Compositestructures. Modelling in FE CAD design: traps and errors, correctand incorrect modelling. The principles of moddeling ofstructures and details. Examples with application of COSMOS/M andICES STRUDL 2 FE systems. Influence lines, moving loadsimulations. Substructuring.
    Keywords: Timber, GLULAM, PARALAM, MULTYLAM, KERTA-LVL, characteristic values, structures, optimisation, ICIC, work, energy, lightweight structures, pneumatic structures, composite structures, FEM, modelling, influence lines, influence surfaces, moving-loads-generation, substructuring, ICES-STRUDL2, COSMOSM
    Other: Prvi dio od četiri knjige je tiskan, ostalo u rukopisu predano utisak.

  2. Type of paper: Paper in journal

    Title: Intelligent Computer Integrated Structures

    Authors:
    Žagar, Zvonimir (55380)
    Delić, Davor (189276)
    Journal: Microcomputer in Civil Engineering
    Number: 8
    ISSN: 0885-9507
    Volume: 8
    Year: 1993
    Pages: from 57 to 65
    Number of references: 44
    Language: engleski
    Summary: One is still bound to known structural forms and implementingmostly known materials and known technology. It is possible toimplement in contemporary design new information technology andadvances from other technical fields, to save energy and materialresources and implement new forms more suitable to some ofmaterial used. It is shown that new advances in material use andtechnology implementation should be reflected in new forms.Notably, the implementation of robotic and neural networktechnology could change the established structural forms.Implementing the computer to maintain the structural safety andintegrity in ICIS may be sought, where computers are integralparts of the whole structure as are other more common structuralparts.
    Keywords: ICIC (Intelligent Computer Integrated Structures), expert system, neural network, VEI (Variable Energy Input), bridge, moving loads, active control, deflection.

  3. Type of paper: Paper in journal

    Title:

    Authors:
    Žagar, Zvonimir (55380)
    Delić, Davor (189276)
    Journal: Inženjersko modeliranje
    Number: 1
    Volume: 4
    Year: 1991
    Pages: from 49 to 59
    Number of references: 20
    Language: engleski
    Summary: We are still bound to known structural forms, mostly implementingknown materials and technologies. In the contemporary design itis possible to implement the new information technology and theadvances from other technical fields to save energy. Notably, theimplementation of robotics and neural network technology couldchange the established structural forms where computers areintegral parts of the whole structure.
    Keywords: Intelligency, integration, neural networks, structures

  4. Type of paper: Paper in journal

    Title: Photogrametric analytic surveying of trevira deformation

    Authors:
    Haiman, Miljenko (47142)
    Fiedler, Teodor
    Landek, Ivan
    Journal: Geodetski list, Glasilo Saveza društava geodeta Hrvatske, Zagreb
    Number: 4
    Year: 1992
    Pages: from 109 to 114
    Number of references: 6
    Language: hrvatski
    Summary: This is the first case of stereophotogrammetric testing of planedeformations in two orthogonal ways of plastified nonwoventextile "trevira" fabric made by KONTEX factory fromKarlovac,presented in this paper. Testig was done in theDepartment for Technical Mechanics of Civil Engineering FacultyUniversity of Zagreb. Analytical photogrammetric testing andgeodesic measurements were done by the Institute forPhotogrammetry Geodetic Faculty University of Zagreb. The firstresults and the way how testing was carried out, is shown. Theintention of this research is to specify the deformations oftrevira fabric under the biaxial stress-strain conditions fordifferent loading cases. This is the prerequisite for applyingpneumatic structures as computer regulated structures.
    Keywords: deformations, biaxial, stress-strain, PVC-trevira (fabric), photogrammetry, rheology

  5. Type of paper: Paper in journal

    Title: Stresses in the angle joint of glulam frames due to moisture penetration

    Authors:
    Magerle, Miroslav (27241)
    Žagar, Zvonimir (55380)
    Journal: Građevinar
    Number: 7
    ISSN: 0350-2465
    Volume: 44
    Year: 1992
    Pages: from 439 to 443
    Number of references: 21
    Language: hrvatski
    Summary: The influence of moisture penetration at the angle jointconnection of the GLULAM beam and column of a two-hingedframe using a deltoidal angle fillet is analysed. Stressdistribution in cross sections of the strucural elements aredetermined. A numerical simulation of moisture penetration hasbeen carried out by gradual moisture increase in relevant FE-s inthe matrix of time-dependent zones of the GLULAM frame. Thecalculation was carried out using FEM and the ICES STRUDL 2system. The intention was to see the consequences of suchpossible loading condition and to evaluate the possibilities ofregulating such mistretmant of the structure in question.
    Keywords: Frame, GLULAM, stress, moisture penetration, angle fillet, cross-section, beam, column, FEM

  6. Type of paper: Paper in journal

    Title: Reliability Assesment for Wooden Beams Applying the Calibration Method

    Authors:
    Glogoški, Ivica (20375)
    Journal: Građevinar
    Number: 3
    Volume: 45
    Year: 1993
    Pages: from 147 to 153
    Number of references: 11
    Language: hrvatski
    Summary: The analysis of the structural element -a wooden simple supportedbeam - subjected to bending so as to assess the reliability ofthis element in certain conditions during construction and usage,applaying the second level probability method, is presented. Theso called calibration method, differing from second levelprobability method, is presented. The analysis is carried out forthe snow loading obtained from statistical data for selectedlocation in Croatia.
    Keywords: Wooden beam, reliability, snow loading, calibration, 2nd level probbilistic method, allowable stress

  7. Type of paper: Paper in proceedings

    Title: By computer in RT regulated structures as a possible response to varibly changing environment.

    Authors:
    Žagar, Zvonimir (55380)
    Editors
    Radić, Zvonimir
    Proceedings title: Savjetovanje SITH: Izgradnja prometne infratrukture za Jadrnsku orijentaciju
    Place: Zagreb
    Year: 1991
    Pages: from 609 to 628
    Meeting: Savjetovanje Saveza inženjera i tehničara Hrvatske: Izgradnja prometne infrastrukture za puno ostvarenje Jadranske orijentacije Hrvatske
    Held: from 03/21/91 to 03/22/91
    Summary: Shown are the possibilities of implementations of intelligentstructures capable of reacting to changing environment by use ofinplanted trained exspert systems.
    Keywords: Neural networks, Expert systems, training, environment, structures

  8. Type of paper: Paper in proceedings

    Title: Object-oriented Design Standard Representation

    Authors:
    Žagar, Zvonimir (55380)
    Proceedings title: IX Kongres SDGJ: Teorijska i eksperimentalna istraživanja, knjiga T1
    Language: hrvatski
    Place: Cavtat, Jugoslavija
    Year: 1991
    Pages: from 59 to 66
    Meeting: IX Kongres Saveza društava građevinskih konstruktera Jugoslavije, Cavtat
    Held: from 04/09/91 to 04/12/91
    Summary: Display of the possibilities of object oriented design standardrepresentation in the example of timber design coderepresentation
    Keywords: expert system, timber, design, standards,

  9. Type of paper: Paper in proceedings

    Title: Intelligent Computer Integrated Structures (ICIS)

    Authors:
    Žagar, Zvonimir (55380)
    Proceedings title: IX Kongres SDGKJ: Teorijska i ekspimentalna istraživanja, Knjiga T-13
    Language: hrvatski
    Place: Cavtat, Jugoslavija
    Year: 1991
    Pages: from 67 to 72
    Meeting: IX Kongres Saveza društava građevinskih konstruktera Jugoslavije, Cavtat
    Held: from 04/09/91 to 04/12/91
    Summary: Shown are the possibilities of stuctural design in whichcomputers and ES are build in as integral structural parts. ES isregulating the deformations and internal forces by means of activating various atenuators. Energy savings are obtained byvariable energy inputs to atenuators. The atenuators areactivated only then when senzors are senzing structural stabilitydistrurbances.
    Keywords: ICIS, variable energy input, deflection, ekspert systems, rheology

  10. Type of paper: Paper in proceedings

    Title: Finite node communication method

    Authors:
    Žagar, Zvonimir (55380)
    Editors
    Radić, Jure
    Proceedings title: Zbornik radova Drugog radnog sabora, Graditelji u obnovi Hrvatske
    Language: hrvatski
    Place: Brijunski otoci/Pula, Hrvatska
    Year: 1993
    Pages: from 241 to 246
    Meeting: Drugi radni sabor, Graditelji u obnovi Hrvatske
    Held: from 10/13/93 to 10/15/93
    Summary: Described is a possibility to approach the FE problem solutionusing the communication of the NE of trained FE nodes connectedby communication channels.
    Keywords: NN, ES, communication, relaxation, channels

  11. Type of paper: Paper in proceedings

    Title: Computer integrated structures

    Authors:
    Žagar, Zvonimir (55380)
    Delić, Davor (189276)
    Editors
    Radić, Jure
    Proceedings title: Zbornik Prvog znanstvenog kolokvija - Mostovi
    Language: hrvatski
    Place: Brijunski otoci/Pula, Hrvatska
    Year: 1991
    Pages: from 196 to 217
    Held: from 06/20/91 to 06/22/91
    Summary: We are still bound to known structural forms. We may seek toimplement computers as integral parts of the structural parts orthe whole structures.
    Keywords: Constraction, computers, NN, regulation

  12. Type of paper: Paper in proceedings

    Title: In real time regulated structures

    Authors:
    Žagar, Zvonimir (55380)
    Delić, Davor (189276)
    Editors
    Baletić, Bojan
    Proceedings title: CAD Forum '91 Arhitektura & Design
    Language: hrvatski
    Place: Zagreb
    Year: 1991
    Pages: from 85 to 106
    Meeting: CAD Forum '91
    Held: from 05/15/91 to 05/17/91
    Summary: Discribed is the possibilities of variable energy imputstructural regulation using real time reacting expert systems.
    Keywords: controll, energz input, stability, sensors, NE, predivtive controll, controll

  13. Type of paper: Paper in proceedings

    Title: In real time by computer regulated structures

    Authors:
    Žagar, Zvonimir (55380)
    Delić, Davor (189276)
    Editors
    Duhovnik, Janez
    Proceedings title: Zbornik 6. seminarja Računalnik v gradbnem inženirstvu
    Language: hrvatski
    Place: Ljubljana, Slovenija
    Year: 1992
    Pages: from 174 to 181
    Meeting: 6. seminar Računalnik v gradbenem inženirstvu
    Summary: Shown are the experiences in variable energy input for instructural stability maintenance to incoming random generatedloads. Shon are the possibilities to delegate the engineeringknowlegde in maintaining the structure stability to by humanexperience trained neural network.
    Keywords: real-time, knowledge, intelligence, VEI, sensors, regulation, structures, moving load

  14. Type of paper: Paper in proceedings

    Title: Verifications of EUROCODE 5 standards for timber structures

    Authors:
    Glogoški, Ivica (20375)
    Editors
    Radić, Jure
    Proceedings title: Zbornik radova Radnog sabora: Graditelji u obnovi Hrvatske, DHGK
    Language: hrvatski
    Year: 1992
    Pages: from 393 to 400
    Meeting: Radni sabor Graditelji u obnovi Hrvatske
    Held: from 06/25/92 to 06/27/92
    Summary: By the analysis of constructive simply supported beam elements,using the probabilistic method, level II, the reliability ofthose elements under construction conditions and in practical usehas been evaluated. It is a so called calibration procedure,since the beams were dimensioned by allowable stress theory incompiliance to now valid regulations. The values of casual sizeof timber strength obtained by statistical processing of testingresults made on samples of real timber structures hs been made.For snow action various statistc data from chosen location inCroatia have been used. The intention was to verify the possibleconsequences of the EUROCODE 5 application in Croatia.
    Keywords: Calibration, testing, statistic, action, safety index, carrying capacity, EUROCODE 5

  15. Type of paper: Paper in proceedings

    Title:

    Authors:
    Glogoški, Ivica (20375)
    Editors
    Larsen, H. J.
    Proceedings title: 1991 International timber engineering conference London
    Language: engleski
    Place: London, Engleska
    Year: 1991
    ISBN/ISSN: 0-901348-86-4
    Pages: from 448 to 455
    Meeting: 1991 Intrenational Timber Engineering Conference London
    Held: from 09/02/91 to 09/05/91
    Summary: Analysing a structural element, the simple beam, dominantlyloaded by bending and applying the II level probabilistic method,the reliability of this element in Yugoslav construction and usecondition is being evaluated. Timber strength values wereobtained by statistically processing results of test carried outon samples of timber structures and, for actions of snow andwind, statistical data from locations in Croatia were used. Bymodifying an expert system, result of probabilistic investigations will form a data base of semiprobabilisticprocedure, which is to be a model of future procedure for theanalysis of wooden buiding structures.
    Keywords: Prtobability, timber, GLULAM, beam, strength, reliability

  16. Type of paper: Paper in proceedings

    Title: Dynamic factor analysis when determining characteristic values of wind loading

    Authors:
    Glogoški, Ivica (20375)
    Proceedings title: IX Kongres SDGKJ, 1991
    Language: hrvatski
    Place: Cavtat, Jugoslavija
    Year: 1991
    Pages: from 213 to 216
    Meeting: IX Kongres Saveza društava građevinskih konstruktera Jugoslavije, Cavtat
    Held: from 04/09/91 to 04/12/91
    Summary: Based on the statistical data on wind velocities at twolocations (Zagreb, Slavonski Brod), as well as for the plannedduration (5 and 30 years) of a representative structural elements- a timber purline, "characteristic values" of wind loading havebeen determined applying two probabilistic procedures: the first,using the average hour maximums of wind velocities, with thedynamic turbulence factor included, and the second, applying theauthor's original procedure which considers the maximum windblows only. The carried out comparative analysis yields goodcorrelations of the two variants and the deeper insight into windaction when determining normativ loadings.
    Keywords: Wooden beams, purlines, reliability, wind loading, calibration, probabilistic method, allowed stress

  17. Type of paper: Paper in proceedings

    Title: In real time computer regulated structures

    Authors:
    Žagar, Zvonimir (55380)
    Delić, Davor (189276)
    Editors
    Muljević, Vladimir
    Proceedings title: Razvitak i dostignuća tehničkih područja u Hrvatskoj
    Language: hrvatski
    Place: Zagreb
    Year: 1994
    ISBN/ISSN: 953-6002-01-9
    Pages: from 36 to 56
    Meeting: Znanstveni skup Razvitak i dostignuća tehničkih područja u Hrvatskoj
    Held: from 09/23/94 to 09/23/94
    Summary: Devoleped is a system for automatic intelligent control of deflection and internal forces in structural systems, based on the implementation of a runtime version of a manualy trained three slabs neural network. The principle is shown on a simulated regulation of bridge deflection due to overpasing generated vechicles pasing with different axelistances, speeds and frequencies. This principle could be applied to other structural systems for deflection controls caused by different loads, as are seismic, wind, running loads, etc. For the creation of a on samples trained NN the Wards NeuroShell was used.
    Keywords: Bridge, deflection, atenuators, actuators, neural networks, pasing vechicles, generated loads, training NN, regulation, energy savings

  18. Type of paper: M.A.

    Title: Pneumatic cushion - lightweight structures
    Faculty: Građevinski fakultet Zagreb
    Date of defense: 11/02/93
    Language: hrvatski
    Number of pages: 204
    Summary: The short history of air suported structures and air inflatedcushions (air bag structures). Principles. Description oflaboratory experiments done. Description of the constructedlaboratory equipment for biaxial streching of PVC coated trevirafabric laboratory speciments. Description of the streoscopicanalytical photogrametric surveying of the trevira fabricdeformations. Nonlinear FE analysis of nine air bag/cushion typesdone with FE system COSMOS/M using the obtained laboratoryresults. Conclusions. Description of the optimal shapes and formsof structural air bags. Description of possible applications intimber and metal structures design as well as in computerintegrated structures (ICIC).
    Keywords: Air cushion, air bags, biaxial streching, fabric, ropes, inflation, pressure, stereophotogrametry, nonlinearity, finite elements, COSMOS/M, deformation, stresses, structures


  19. Type of paper: Mentorship

    Title: Pneumatic cushions - lightweight structures
    Faculty: Građevinski fakultet Zagreb
    Mentor: ADLER NEVENKA
    Date of defense: 10/20/93
    Number of pages: 204
    Author: Haiman Miljenko
    Degree level: M.A.


  20. Type of paper: Mentorship

    Title: Contribution to research of timber diafragm structures
    Faculty: Građevinski fakultet Zagreb
    Mentor: ADLER NEVENKA
    Date of defense: 01/31/92
    Number of pages: 214
    Author: Takač Magistar Stjepan
    Degree level: Ph.D.


  21. Type of paper: Survey/Study

    Title: Croatian national version of EUROCODE 5 standards for design of wooden structures

    Authors:
    Baljkas, Boris (1846)
    Bjelanović, Adriana
    Delić, Davor (189276)
    Haiman, Miljenko (47142)
    Magerle, Miroslav (27241)
    Žagar, Zvonimir (55380)
    Ordering party: Hrvatske ceste i Hrvatski zavod za standardizaciju
    Institution depot: Hrvatske ceste i Hrvatski zavod za standardizaciju
    Year: 1992
    Number of pages: 150
    Language: hrvatski
    Summary: Described are the Croatian national code and standards for thedesign of wooden and GLULAM structures written in modular formapplicable to use in ES. Beside this the conventional way of standard representation is given.
    Keywords: Standards, timber, GLULAM, safety, limit-state, ultimate-limit-state, serviceability, requirements, characteristic-values, classification, grading, stability, joining, fasteners, unification, EUROCODE 5, ISO 3098, moduls

  22. Type of paper: Manuscript

    Title: Expert systems

    Authors:
    Žagar, Zvonimir (55380)
    Language: hrvatski
    Summary: Shown are rule based expert systems, the basics of inference engines, and the forward and backward search technics. Some examples and operative programs are shown. Application to various fields, and to Civil and Structural enfgineering fields in particular. The neural networks are shown. The neuron, the slabs and organization of slabs and connection. Bias node. Treshold functions, sugmoid and other regulation function are shown. Some succesfull application to Engineering practice are show. As the NN for damage recognition of in war damaged dwelings, as an example for intelligent structure deflection regulation.
    Keywords: Expert systems, rule based ES, neural networks, nodes, connections, bias, training, treshhold functions, neural network structural deflection regulation, damage recognition and damage evaluation
    Other: skripta 200 strana za postiplomski studij na Građevinskom fakultetu Sveučilišta u Zagrebu


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