A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Saosys toolbox as Matlab implementation in the elastic‐plastic analysis and optimal design of steel frame structures
The improved mathematical model of steel frame structures’ design is created. The loading is simple, and plastic strains are evaluated. Energy principles of deformable body mechanics and mathematical programming theory are employed. Equilibrium finite elements with interpolation functions of internal forces are used for discretization. The elements are designed using HE, IPE, RHS steel profile assortments and considering dispersion of geometrical characteristics of profile assortment sets. Optimal design of steel structures is realized by using the experimental tool systemJWM SAOSYS Toolbox v0.42, which was created by the authors inMATLABenvironment.SAOSYSarchitecture operates with object‐oriented finite elements pseudo‐polymorphously. The possibilities of this system are demonstrated by considering a numerical example of optimal design of industrial building frame with strength and stiffness constraints. The assumption of small displacements is adopted for computations. Santrauka Pasitelkus deformuojamo kūno mechanikos energinius principus ir matematinio programavimo teorija, sudarytas minimalaus tūrio strypiniu plieniniu konstrukciju, patyrusiu ir plastines deformacijas, projektavimo nuo vienkartes apkrovos uždavinio patobulintas matematinis modelis. Diskretizacijai naudojami pusiausvirieji baigtiniai elementai su iražu interpo‐liavimo funkcijomis. Elementai projektuojami iš sortimentiniu HE, IPE, RHS plieniniu profiliuočiu, atsižvelgiant i profi‐liuočiu aibiu geometriniu charakteristiku sklaida sortimentuose. Optimalus plieniniu konstrukciju projektavimas realizuojamas autoriuMATLABaplinkoje sukurta eksperimentine sistemaJWM SAOSYS Toolbox v0.42. SAOSYSarchitektūra pseudopolimorfiškai operuoja objektiškai orientuotais baigtiniais elementais. SistemosSAOSYSgalimybes atskleidžiamos pramoninio pastato remo optimalaus projektavimo su stiprumo ir standumo apribojimais pavyzdžiu. Skaičiuota atsižvelgus i mažu poslinkiu prielaidas. Published Published Online: 14 Oct 2010 Reikšminiai žodžiai: optimalus projektavimas,ekstreminiai energiniai principai,matematinis programavimas,plienines konstrukcijos,baigtiniu elementu metodas,objektiškai orientuotas programavimas,MATLAB
Saosys toolbox as Matlab implementation in the elastic‐plastic analysis and optimal design of steel frame structures
The improved mathematical model of steel frame structures’ design is created. The loading is simple, and plastic strains are evaluated. Energy principles of deformable body mechanics and mathematical programming theory are employed. Equilibrium finite elements with interpolation functions of internal forces are used for discretization. The elements are designed using HE, IPE, RHS steel profile assortments and considering dispersion of geometrical characteristics of profile assortment sets. Optimal design of steel structures is realized by using the experimental tool systemJWM SAOSYS Toolbox v0.42, which was created by the authors inMATLABenvironment.SAOSYSarchitecture operates with object‐oriented finite elements pseudo‐polymorphously. The possibilities of this system are demonstrated by considering a numerical example of optimal design of industrial building frame with strength and stiffness constraints. The assumption of small displacements is adopted for computations. Santrauka Pasitelkus deformuojamo kūno mechanikos energinius principus ir matematinio programavimo teorija, sudarytas minimalaus tūrio strypiniu plieniniu konstrukciju, patyrusiu ir plastines deformacijas, projektavimo nuo vienkartes apkrovos uždavinio patobulintas matematinis modelis. Diskretizacijai naudojami pusiausvirieji baigtiniai elementai su iražu interpo‐liavimo funkcijomis. Elementai projektuojami iš sortimentiniu HE, IPE, RHS plieniniu profiliuočiu, atsižvelgiant i profi‐liuočiu aibiu geometriniu charakteristiku sklaida sortimentuose. Optimalus plieniniu konstrukciju projektavimas realizuojamas autoriuMATLABaplinkoje sukurta eksperimentine sistemaJWM SAOSYS Toolbox v0.42. SAOSYSarchitektūra pseudopolimorfiškai operuoja objektiškai orientuotais baigtiniais elementais. SistemosSAOSYSgalimybes atskleidžiamos pramoninio pastato remo optimalaus projektavimo su stiprumo ir standumo apribojimais pavyzdžiu. Skaičiuota atsižvelgus i mažu poslinkiu prielaidas. Published Published Online: 14 Oct 2010 Reikšminiai žodžiai: optimalus projektavimas,ekstreminiai energiniai principai,matematinis programavimas,plienines konstrukcijos,baigtiniu elementu metodas,objektiškai orientuotas programavimas,MATLAB
Saosys toolbox as Matlab implementation in the elastic‐plastic analysis and optimal design of steel frame structures
Jankovski, Valentinas (author) / Atkočiūnas, Juozas (author)
2010-03-31
doi:10.3846/jcem.2010.10
Journal of Civil Engineering and Management; Vol 16 No 1 (2010); 103-121 ; 1822-3605 ; 1392-3730
Article (Journal)
Electronic Resource
English
DDC:
690
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