20.500.12556/DKUM-26277 MINLP optimization of a single-storey industrial steel building MINLP optimiranje jeklene industrijske hale The paper presents the topology and standard sizes optimization of a single-storey industrial steel building, made from standard hot rolled I sections. The structure consists of main portal frames, connected with purlins. The structural optimization is performed by the Mixed-Integer Non-linear programming approach (MINLP). The MINLP performs a discrete topology and standard dimension optimization simultaneously with continuous parameters. Since the discrete/continuous optimization problem of the industrial building is non-convex and highly non-linear, the Modified Outer- Approximation/Equality-Relaxation (OA/ER) algorithm has been used for the optimization. Alongside the optimum structure mass, the optimum topology with the optimum number of portal frames and purlins as well as all standard cross-section sizes have been obtained. The paper includes the theoretical basis and a practical example with the results of the optimization. V prispevku je predstavljeno optimiranje topologije in standardnih prerezov jeklene industrijske hale, izdelane iz jeklenih standardnih vroče valjanih I prerezov. Konstrukcijo sestavljajo glavni okvirji na katere so pritrjene lege. Optimiranje je izvedeno z mešanim celoštevilskim nelinearnim programiranjem (MINLP). Pri MINLP poteka diskretno optimiranje topologije in standardnih izmer sočasno z računom zveznih parametrov. Za reševanje nekonveksnega, nelinearnega in kombiniranega diskretno-zveznega optimizacijskega problema jeklenih hal je uporabljen modificirani algoritem zunanje aproksimacije s sprostitvijo enačb (Modified OA/ER). Poleg optimalne mase konstrukcije so še izračunani optimalna topologija z optimalnim številom glavnih okvirjev in leg ter standardni prerezi vseh konstrukcijskih elementov.Prispevek vsebuje teoretični opis problema in praktični primer z rezultati optimiranja. civil engineering topology optimization sizing optimization nonlinear programming MINLP gradbeništvo industrijske hale optimiranje topologije optimiranje prerezov nelinearno programiranje MINLP true false false Angleški jezik Slovenski jezik Neznano 2012-05-31 12:22:50 2012-05-31 12:22:50 2022-04-15 03:41:18 2024-01-03 03:24:13 2008 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.04:519.68 12650774 0039-2480 URN:SI:UM:DK:J6PJLA7V http://www.sv-jme.eu/scripts/download.php?file=/data/upload/2008/SV-54-2008-10/SV_10_2008_7_Zula.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=35243 Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo 0 0 0