{"id":5743,"date":"2026-08-12T15:44:09","date_gmt":"2026-08-12T15:44:09","guid":{"rendered":"https:\/\/baldinistudio.hr\/?p=5743"},"modified":"2026-08-12T16:00:36","modified_gmt":"2026-08-12T16:00:36","slug":"vidikovac-marjan-celicna-konstrukcija","status":"publish","type":"post","link":"https:\/\/baldinistudio.hr\/en\/vidikovac-marjan-celicna-konstrukcija\/","title":{"rendered":"Vidikovac na Marjanu: kako je projektirana \u010deli\u010dna konstrukcija"},"content":{"rendered":"<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:1.5rem;font-size:20px;line-height:1.6\">U park-\u0161umi Marjan iznad Splita u rujnu 2024. otvoren je vidikovac visok 19 metara s panoramskim pogledom od 360 stupnjeva na Split, kanal i otoke. Ono \u0161to posjetitelj ne vidi jednako je zanimljivo: prostorna re\u0161etkasta \u010deli\u010dna konstrukcija promjenjivog promjera, kroz koju su provu\u010deni dizalo i stubi\u0161te, te niz spojeva od kojih je samo mali dio standardan. <strong>Konstrukciju je projektirao i kontrolirao tim Fakulteta gra\u0111evinarstva, arhitekture i geodezije Sveu\u010dili\u0161ta u Splitu, kombiniraju\u0107i SCIA Engineer za globalnu analizu i IDEA StatiCa Connection za prora\u010dun spojeva, a radioni\u010dki nacrti napravljeni su softverom Parabuild.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Projekt je kao studiju slu\u010daja objavio proizvo\u0111a\u010d softvera IDEA StatiCa. Prenosimo ga jer je rije\u010d o doma\u0107em projektu izvedenom alatima koje u Hrvatskoj zastupamo: <a href=\"https:\/\/baldinistudio.hr\/en\/idea-statica\/\">IDEA StatiCa<\/a>, <a href=\"https:\/\/baldinistudio.hr\/en\/scia-engineer\/\">SCIA Engineer<\/a> i <a href=\"https:\/\/baldinistudio.hr\/en\/parabuild\/\">Parabuild<\/a>. Kombinacija globalnog modela i detaljnog dokaza pojedinog \u010dvora svakodnevni je tijek rada u <a href=\"https:\/\/baldinistudio.hr\/en\/konstrukterstvo\/\">konstrukterstvu<\/a>, ali rijetko se vidi tako jasno kao na gra\u0111evini koja nema nijedan ponovljiv kat.<\/p>\n\n\n\n<div class=\"wp-block-group has-text-color has-background is-layout-constrained wp-container-core-group-is-layout-157312f3 wp-block-group-is-layout-constrained\" style=\"border-radius:10px;color:#4A4A4A;background-color:#F4EFF7;margin-top:2.5rem;margin-bottom:2.5rem;padding-top:32px;padding-right:32px;padding-bottom:32px;padding-left:32px\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#3F0852;margin-top:0;margin-bottom:0.8rem\">Klju\u010dni podaci o projektu<\/h3>\n\n\n\n<ul style=\"margin-top:0;margin-bottom:0\" class=\"wp-block-list\">\n<li><strong>Lokacija i visina:<\/strong> park-\u0161uma Marjan, Split; ukupno 19 m, cilindri\u010dni dio oko 15 m, vidikovac na vrhu oko 4,5 m<\/li>\n\n\n\n<li><strong>Geometrija:<\/strong> promjer pla\u0161ta mijenja se po visini izme\u0111u 5 i 8 m<\/li>\n\n\n\n<li><strong>Ulaganje:<\/strong> oko 1,3 milijuna eura iz EU fondova, u sklopu projekta \u201eMarjan 2020 \u2013 Brdo pro\u0161losti, oaza budu\u0107nosti&#8221;<\/li>\n\n\n\n<li><strong>Arhitektura:<\/strong> Emil \u0160verko (Atelijer \u0160verko i \u0160verko) i Neno Kezi\u0107 (Arhipolis)<\/li>\n\n\n\n<li><strong>Konstrukcija:<\/strong> tim Fakulteta gra\u0111evinarstva, arhitekture i geodezije u Splitu pod vodstvom izv. prof. dr. sc. Nene Tori\u0107a<\/li>\n\n\n\n<li><strong>Softver:<\/strong> <a href=\"https:\/\/baldinistudio.hr\/en\/scia-engineer\/\">SCIA Engineer<\/a> (globalna analiza), <a href=\"https:\/\/baldinistudio.hr\/en\/idea-statica-steel\/\">IDEA StatiCa Connection<\/a> (prora\u010dun i dokaz spojeva) i <a href=\"https:\/\/baldinistudio.hr\/en\/parabuild\/\">Parabuild<\/a> (radioni\u010dki nacrti, <a href=\"https:\/\/www.parabuild.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">stranica proizvo\u0111a\u010da<\/a>)<\/li>\n<\/ul>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Stari vidikovac vi\u0161e nije odgovarao namjeni<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prethodna promatra\u010dnica na Marjanu podignuta je davno prije nego \u0161to je bilo jasno \u0161to sve suvremena tehnologija omogu\u0107uje, pa je s vremenom jednostavno prestala odgovarati namjeni. Kad se na to nadovezala i namjera da mjesto postane dostupno izletnicima i organiziranim posjetima, jedino je rje\u0161enje bila nova gra\u0111evina.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:1.5rem\">Novi vidikovac zato nije samo vi\u0161i. Zami\u0161ljen je kao turisti\u010dki sadr\u017eaj s panoramskim dizalom, stubi\u0161tem i platformom koja podnosi stalan promet posjetitelja, a uz to zadr\u017eava izvornu funkciju motrenja i rane dojave po\u017eara nad park-\u0161umom. Grad Split projekt je vodio u sklopu programa \u201eMarjan 2020&#8243;, a na otvorenju je gradona\u010delnik Ivica Puljak istaknuo ambiciju zahvata uz obvezu o\u010duvanja krajolika koji ga okru\u017euje.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"566\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje.webp\" alt=\"Vidikovac u park-\u0161umi Marjan iznad Splita na dan otvorenja\" class=\"wp-image-5734\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje.webp 1080w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje-300x157.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje-1024x537.webp 1024w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje-768x402.webp 768w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje-18x9.webp 18w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-otvorenje-600x314.webp 600w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><figcaption class=\"wp-element-caption\">Novi vidikovac u park-\u0161umi Marjan otvoren je u rujnu 2024.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Tri nosive cjeline vidikovca na zajedni\u010dkoj betonskoj bazi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Konstrukcija se sastoji od tri me\u0111usobno povezane \u010deli\u010dne nosive cjeline koje sve le\u017ee na armiranobetonskoj bazi:<\/p>\n\n\n\n<ul style=\"margin-top:0;margin-bottom:1.5rem\" class=\"wp-block-list\">\n<li><strong>Prostorna re\u0161etkasta konstrukcija pla\u0161ta<\/strong> cilindri\u010dnog oblika, s promjerom koji se po visini mijenja izme\u0111u 5 i 8 metara. Visina cilindri\u010dnog dijela je oko 15 m, a na vrhu je vidikovac visine oko 4,5 m oslonjen na \u010detiri me\u0111usobno okomite ravninske re\u0161etke.<\/li>\n\n\n\n<li><strong>\u010celi\u010dna konstrukcija okna dizala<\/strong> visine oko 19 m, provu\u010dena kroz sredinu tornja.<\/li>\n\n\n\n<li><strong>\u010celi\u010dno stubi\u0161te u dva raspona<\/strong> visine 15 m.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:1.5rem\">Podjela nije samo opisna. Svaka cjelina ima svoju krutost i svoj put optere\u0107enja, pa su veze me\u0111u njima morale primiti razlike u pona\u0161anju koje bi na jednostavnijem tornju bile zanemarive.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\"><img decoding=\"async\" width=\"1400\" height=\"750\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model.webp\" alt=\"Bokocrt i 3D CAD model vidikovca na Marjanu iz projektne dokumentacije\" class=\"wp-image-5735\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model.webp 1400w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model-300x161.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model-1024x549.webp 1024w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model-768x411.webp 768w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model-18x10.webp 18w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-bokocrt-i-3d-model-600x321.webp 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Bokocrt i 3D CAD model iz projektne dokumentacije.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Vjetar je mjerodavno djelovanje<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Od svih optere\u0107enja koja djeluju na vidikovac najve\u0107e je djelovanje vjetra. Konstrukcija je polupropusna: re\u0161etkasti pla\u0161t propu\u0161ta zrak, pa se optere\u0107enje ne mo\u017ee procijeniti kao na punoj cilindri\u010dnoj plohi. Projektanti su zato razmotrili nekoliko varijanti prora\u010duna optere\u0107enja vjetrom, uklju\u010duju\u0107i djelovanja iz \u010detiriju me\u0111usobno okomitih smjerova.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Iz tih varijanti proizlaze mjerodavne kombinacije, a iz njih sile u pojedinim \u0161tapovima i, na kraju, u svakom spoju. Na vitkoj re\u0161etkastoj konstrukciji izlo\u017eenoj buri i jugu to je odluka koja oblikuje presjeke jednako koliko i vlastita te\u017eina.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" style=\"margin-top:2rem;margin-bottom:2rem\">\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:0\">Od svih optere\u0107enja koja djeluju na vidikovac najve\u0107e je djelovanje vjetra.<\/p>\n<cite>IDEA StatiCa, studija slu\u010daja \u201eObservation tower in forest Marjan&#8221;<\/cite><\/blockquote>\n\n\n\n<div class=\"wp-block-group has-text-color has-background is-layout-constrained wp-container-core-group-is-layout-ed5dbee1 wp-block-group-is-layout-constrained\" style=\"border-radius:10px;color:#4A4A4A;background-color:#F7F7F5;margin-top:2.5rem;margin-bottom:2.5rem;padding-top:28px;padding-right:28px;padding-bottom:28px;padding-left:28px\">\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-6ee76cfc wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:42%\">\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:0\">Globalni model daje sile i pomake cijele konstrukcije. Tek se iz njega izvodi ono \u0161to pojedini \u010dvor stvarno mora primiti.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:58%\">\n<figure class=\"wp-block-image size-large\" style=\"margin-top:0;margin-bottom:0\"><img decoding=\"async\" width=\"669\" height=\"353\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-model-baze.webp\" alt=\"Detalj prora\u010dunskog modela baze vidikovca na Marjanu\" class=\"wp-image-5739\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-model-baze.webp 669w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-model-baze-300x158.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-model-baze-18x9.webp 18w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-model-baze-600x317.webp 600w\" sizes=\"(max-width: 669px) 100vw, 669px\" \/><figcaption class=\"wp-element-caption\">Detalj prora\u010dunskog modela baze.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Toplinske deformacije i pomaci koje dizalo ne opra\u0161ta<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Najve\u0107i izazov u projektu bio je prora\u010dun i oblikovanje spojeva tako da se smanji utjecaj toplinskih deformacija. Nosiva konstrukcija je izlo\u017eena otvorenom prostoru: nema ovojnice ni grijanog prostora, a re\u0161etka promjenjivog promjera temperaturne razlike ne raspore\u0111uje ravnomjerno. Spoj koji je savr\u0161en na crte\u017eu na terenu mora dopustiti da se konstrukcija mi\u010de.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Drugi zahtjev do\u0161ao je iz uporabe. Panoramsko dizalo ima uske tolerancije vodilica, pa je vodoravne pomake tornja trebalo zadr\u017eati ispod praga koji dizalo jo\u0161 prihva\u0107a. Na vitkom tornju optere\u0107enom vjetrom takav kriterij uporabljivosti \u010desto oblikuje presjeke vi\u0161e nego sama nosivost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tre\u0107i je zadatak bio razraditi monta\u017ene segmente za oblik koji nema ponovljivih dijelova, o \u010demu ni\u017ee.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Spojevi kojih nema u katalogu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">U konstrukciji je upotrijebljen samo mali broj standardnih \u010deli\u010dnih spojeva iz tipologije Eurokoda 3. Sve ostalo su nestandardni \u010dvorovi: sjeci\u0161ta dijagonala pla\u0161ta pod promjenjivim kutom, priklju\u010dci ravninskih re\u0161etki vidikovca, veze okna dizala i stubi\u0161ta na pla\u0161t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za takve spojeve klasi\u010dni postupak po komponentama brzo dolazi do granice, jer tabli\u010dni izrazi pretpostavljaju geometriju kakve na ovom tornju nema. Zato je kori\u0161ten <a href=\"https:\/\/baldinistudio.hr\/en\/idea-statica-steel\/\">IDEA StatiCa Connection<\/a>, koji spoj rje\u0161ava metodom <a href=\"https:\/\/www.ideastatica.com\/support-center\/faq\/what-is-the-cbfem\" target=\"_blank\" rel=\"noopener noreferrer\">CBFEM<\/a> (Component Based Finite Element Method): plo\u010de se modeliraju kona\u010dnim elementima, a vijci i zavari provjeravaju kao komponente. Umjesto svo\u0111enja svakog \u010dvora na najbli\u017ei katalogizirani slu\u010daj, ra\u010duna se stvarna geometrija i daje dokaz po normi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"margin-top:1.8rem;margin-bottom:0.6rem\">\u0160to to zna\u010di u praksi<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:1.5rem\">Za projektantski tim to je zna\u010dilo da su i najslo\u017eeniji \u010dvorovi dobili dokaz u kratkom roku, bez ru\u010dnih pojednostavnjenja koja bi kod gra\u0111evine ovakvog zna\u010daja trebalo pokrivati dodatnim rezervama. Kako izgleda suprotan scenarij, pisali smo u tekstu <a href=\"https:\/\/baldinistudio.hr\/en\/kada-dizajn-spojeva-krene-po-zlu-idea-statica\/\">Kada dizajn spojeva krene po zlu<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"335\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva.webp\" alt=\"Primjeri \u010deli\u010dnih spojeva iz razli\u010ditih dijelova konstrukcije vidikovca na Marjanu\" class=\"wp-image-5742\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva.webp 1400w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva-300x72.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva-1024x245.webp 1024w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva-768x184.webp 768w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva-18x4.webp 18w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-primjeri-celicnih-spojeva-600x144.webp 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Primjeri \u010deli\u010dnih spojeva iz razli\u010ditih dijelova konstrukcije.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\"><img loading=\"lazy\" decoding=\"async\" width=\"1322\" height=\"436\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor.webp\" alt=\"Konstrukcijska mre\u017ea pla\u0161ta vidikovca na Marjanu i jedan od \u010dvorova\" class=\"wp-image-5737\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor.webp 1322w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor-300x99.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor-1024x338.webp 1024w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor-768x253.webp 768w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor-18x6.webp 18w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-mreza-plasta-i-cvor-600x198.webp 600w\" sizes=\"(max-width: 1322px) 100vw, 1322px\" \/><figcaption class=\"wp-element-caption\">Konstrukcijska mre\u017ea pla\u0161ta tornja i jedan od njezinih \u010dvorova.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Sidrenje u armiranobetonsku plo\u010du<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Najosjetljiviji spoj nije \u010delik na \u010delik. Cijeli toranj predaje djelovanje vjetra u armiranobetonsku bazu preko sidrenih spojeva, koji istodobno primaju tlak, vlak i moment, a moraju biti izvedivi na gradili\u0161tu s tolerancijama koje beton dopu\u0161ta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:1.5rem\">Prikaz naprezanja i deformacija pokazuje kako se sila raspore\u0111uje po podlo\u017enoj plo\u010di i ukrutama, dok CAD model istog \u010dvora pokazuje ono \u0161to je oti\u0161lo u radionicu. To je uobi\u010dajen par u ovakvim projektima: rezultat prora\u010duna s jedne strane, izvediva geometrija s druge.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-b849bd4a wp-block-columns-is-layout-flex\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-large\" style=\"margin-top:0;margin-bottom:0\"><img loading=\"lazy\" decoding=\"async\" width=\"548\" height=\"668\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-analiza-naprezanja-sidrenja.webp\" alt=\"Analiza naprezanja i deformacija sidrenog spoja u IDEA StatiCa-i Connection\" class=\"wp-image-5740\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-analiza-naprezanja-sidrenja.webp 548w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-analiza-naprezanja-sidrenja-246x300.webp 246w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-analiza-naprezanja-sidrenja-10x12.webp 10w\" sizes=\"(max-width: 548px) 100vw, 548px\" \/><figcaption class=\"wp-element-caption\">Analiza naprezanja i deformacija sidrenog spoja.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-large\" style=\"margin-top:0;margin-bottom:0\"><img loading=\"lazy\" decoding=\"async\" width=\"533\" height=\"605\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-cad-model-sidrenja.webp\" alt=\"CAD model sidrenog spoja vidikovca s vijcima i ukrutama\" class=\"wp-image-5741\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-cad-model-sidrenja.webp 533w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-cad-model-sidrenja-264x300.webp 264w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-cad-model-sidrenja-11x12.webp 11w\" sizes=\"(max-width: 533px) 100vw, 533px\" \/><figcaption class=\"wp-element-caption\">CAD model istog sidrenog spoja.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Prvi vij\u010dani spoj odre\u0111uje sve ostalo<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Izvedbeni izazov bio je prvi vij\u010dani spoj cilindri\u010dnog dijela, odmah nakon dovr\u0161etka armiranobetonske baze. Prvi segment trebalo je pozicionirati u prostoru vrlo to\u010dno, jer o njemu ovisi ho\u0107e li preostali dijelovi, stubi\u0161te i okno dizala, stati u prostor koji im je ostao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:1.5rem\">Odabrano je rje\u0161enje u kojem se bazni segment precizno usidri u armiranobetonsku plo\u010du, a tek se zatim postavlja prvi segment cilindri\u010dne konstrukcije. Nacrti prstenastih i gredastih segmenata pokazuju koliko je toga trebalo definirati unaprijed: svaki je segment jedinstven i nosi svoje mjesto u sustavu iskol\u010denja.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"1079\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta.webp\" alt=\"Monta\u017ea baznog segmenta \u010deli\u010dne konstrukcije vidikovca na Marjanu\" class=\"wp-image-5738\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta.webp 1400w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta-300x231.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta-1024x789.webp 1024w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta-768x592.webp 768w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta-16x12.webp 16w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-montaza-baznog-segmenta-600x462.webp 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Monta\u017ea baznog segmenta na dovr\u0161enoj armiranobetonskoj bazi.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:2.5rem;margin-bottom:2.5rem\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"413\" src=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata.webp\" alt=\"Nacrti prstenastog i gredastog segmenta \u010deli\u010dne konstrukcije vidikovca\" class=\"wp-image-5736\" srcset=\"https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata.webp 1400w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata-300x89.webp 300w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata-1024x302.webp 1024w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata-768x227.webp 768w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata-18x5.webp 18w, https:\/\/baldinistudio.hr\/wp-content\/uploads\/blog\/vidikovac-marjan-celicna-konstrukcija\/vidikovac-marjan-nacrti-segmenata-600x177.webp 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Nacrti prstenastog segmenta i segmenta grede.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Od globalnog modela do radioni\u010dkih nacrta<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tijek rada bio je jednostavan po strukturi i zahtjevan po sadr\u017eaju:<\/p>\n\n\n\n<ul style=\"margin-top:0;margin-bottom:1.5rem\" class=\"wp-block-list\">\n<li><strong>Globalna analiza u SCIA Engineer-u.<\/strong> Geometrija, optere\u0107enja, kombinacije, unutarnje sile i pomaci cijele konstrukcije, uklju\u010duju\u0107i varijante djelovanja vjetra.<\/li>\n\n\n\n<li><strong>Prora\u010dun i dokaz spojeva u IDEA StatiCa-i Connection.<\/strong> Sile iz globalnog modela ulaze u pojedini \u010dvor, koji se rje\u0161ava metodom CBFEM.<\/li>\n\n\n\n<li><strong>BIM model i radioni\u010dki nacrti.<\/strong> Podaci iz oba koraka poslu\u017eili su za definiranje BIM modela konstrukcije, a radioni\u010dki nacrti izra\u0111eni su softverom <a href=\"https:\/\/baldinistudio.hr\/en\/parabuild\/\">Parabuild<\/a>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ista se kombinacija pojavljuje i u drugim projektima o kojima smo pisali, primjerice u <a href=\"https:\/\/baldinistudio.hr\/en\/projekt-sportske-dvorane-u-velikoj-ludini-iskustva-bim-analiza\/\">analizi BIM alata na sportskoj dvorani u Velikoj Ludini<\/a> i u <a href=\"https:\/\/baldinistudio.hr\/en\/projekt-celicnih-konstrukcija-zracne-luke-zadar\/\">projektu \u010deli\u010dnih konstrukcija Zra\u010dne luke Zadar<\/a>. O povezivanju modeliranja i statike pisali smo i u tekstu <a href=\"https:\/\/baldinistudio.hr\/en\/besprijekorno-projektiranje-kombiniranje-allplan-a-i-scia\/\">Kombiniranje ALLPLAN-a i SCIA Engineer-a<\/a>, a \u0161iri pregled alata nalazi se na stranici <a href=\"https:\/\/baldinistudio.hr\/en\/bim-rjesenja\/\">BIM solutions<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">\u0160to ovaj primjer ne rje\u0161ava<\/h2>\n\n\n\n<div class=\"wp-block-group has-text-color has-background is-layout-constrained wp-container-core-group-is-layout-d286a47f wp-block-group-is-layout-constrained\" style=\"border-radius:10px;color:#4A4A4A;background-color:#F7F7F5;margin-top:0;margin-bottom:2.5rem;padding-top:28px;padding-right:28px;padding-bottom:28px;padding-left:28px\">\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:1rem\">Studija slu\u010daja pokazuje rezultat, ne i sve \u0161to stoji iza njega. Nekoliko ograda vrijedi izre\u0107i naglas:<\/p>\n\n\n\n<ul style=\"margin-top:0;margin-bottom:1.5rem\" class=\"wp-block-list\">\n<li><strong>CBFEM ne zamjenjuje globalnu analizu.<\/strong> Model spoja ra\u010duna ono \u0161to mu se preda. Sile, kombinacije i pomaci i dalje dolaze iz globalnog modela, ovdje iz SCIA Engineer-a. Lo\u0161 globalni model daje uredan, ali besmislen dokaz spoja.<\/li>\n\n\n\n<li><strong>Toplinsko djelovanje je projektantska pretpostavka.<\/strong> Raspon temperatura, na\u010din unosa u model i pretpostavljena sloboda pomaka odluke su projektanta, a ne rezultat softvera.<\/li>\n\n\n\n<li><strong>Kriterij pomaka dolazi od dobavlja\u010da opreme.<\/strong> Dopu\u0161teni vodoravni pomak za panoramsko dizalo nije normna vrijednost; treba ga dogovoriti s dobavlja\u010dem i zapisati kao ulazni podatak.<\/li>\n\n\n\n<li><strong>Brz dokaz nije isto \u0161to i brzo projektiranje.<\/strong> Model spoja izradi se brzo, ali odluke o obliku \u010dvora, monta\u017ei i redoslijedu ugradnje ostaju ljudski posao.<\/li>\n\n\n\n<li><strong>Objavljene brojke su okvirne.<\/strong> Studija slu\u010daja ne donosi presjeke, klase \u010delika ni prora\u010dunske izvje\u0161taje, pa je nema smisla koristiti kao referentni prora\u010dun.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-bottom:0\">Ni\u0161ta od toga ne umanjuje projekt. Naprotiv, pokazuje gdje je stvarni in\u017eenjerski rad.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\" style=\"margin-top:0;margin-bottom:3rem\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/www.ideastatica.com\/support-center\/case-studies\/observation-tower-in-forest-marjan\" style=\"color:#FFFFFF !important;background-color:#29A06D;border-radius:50px;text-decoration:none !important\" target=\"_blank\" rel=\"noopener noreferrer\">Pro\u010ditajte originalnu studiju slu\u010daja<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-text-color has-background is-layout-constrained wp-container-core-group-is-layout-7a37721a wp-block-group-is-layout-constrained\" style=\"border-radius:10px;color:#FFFFFF;background-color:#3F0852;margin-top:0;margin-bottom:1.5rem;padding-top:40px;padding-right:40px;padding-bottom:40px;padding-left:40px\">\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#FFFFFF;margin-top:0;margin-bottom:1rem\">Projektirate konstrukciju koja nema tipske spojeve?<\/h3>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF\">Pro\u0111imo zajedno kroz va\u0161 globalni model, mjerodavne kombinacije i \u010dvorove koji ne stanu u tipologiju Eurokoda 3. Baldinistudio zastupa IDEA StatiCa-u, SCIA Engineer i Parabuild u Hrvatskoj i uz licence pru\u017ea edukaciju i podr\u0161ku na hrvatskom jeziku.<\/p>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#FFFFFF;margin-bottom:0\">Ako \u017eelite sami isprobati, javite nam se za probnu verziju, a studenti i \u0161kole mogu koristiti <a style=\"color:#ADE0BC;text-decoration:underline\" href=\"https:\/\/baldinistudio.hr\/en\/studentske-i-demo-verzije\/\">studentske i demo verzije<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\" style=\"margin-top:1.5rem;margin-bottom:0\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/baldinistudio.hr\/en\/kontakt\/\" style=\"color:#FFFFFF !important;background-color:#29A06D;border-radius:50px;text-decoration:none !important\">Kontaktirajte Baldinistudio<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-text-color has-background is-layout-constrained wp-container-core-group-is-layout-5130086f wp-block-group-is-layout-constrained\" style=\"border-radius:10px;color:#E3E8EC;background-color:#1F2933;margin-top:1.5rem;margin-bottom:2.5rem;padding-top:32px;padding-right:32px;padding-bottom:32px;padding-left:32px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#E3E8EC;margin-top:0;margin-bottom:0\"><strong>O izvoru:<\/strong> \u010clanak je nastao prema studiji slu\u010daja <a style=\"color:#ADE0BC;text-decoration:underline\" href=\"https:\/\/www.ideastatica.com\/support-center\/case-studies\/observation-tower-in-forest-marjan\" target=\"_blank\" rel=\"noopener noreferrer\">Observation tower in Forest Marjan<\/a> koju je objavila <a style=\"color:#ADE0BC;text-decoration:underline\" href=\"https:\/\/www.ideastatica.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">IDEA StatiCa<\/a>. Fotografije, nacrti i prikazi prora\u010dunskih modela preuzeti su iz te studije i pripadaju projektnom timu <a style=\"color:#ADE0BC;text-decoration:underline\" href=\"https:\/\/gradst.unist.hr\/\" target=\"_blank\" rel=\"noopener noreferrer\">Fakulteta gra\u0111evinarstva, arhitekture i geodezije Sveu\u010dili\u0161ta u Splitu<\/a>, odnosno proizvo\u0111a\u010du, a koriste se radi prikaza projekta.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"margin-top:3rem;margin-bottom:1rem\">Izvori i korisne poveznice<\/h2>\n\n\n\n<ul style=\"margin-top:0;margin-bottom:0\" class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ideastatica.com\/support-center\/case-studies\/observation-tower-in-forest-marjan\" target=\"_blank\" rel=\"noopener noreferrer\">IDEA StatiCa: Observation tower in forest Marjan<\/a> (izvorna studija slu\u010daja)<\/li>\n\n\n\n<li><a href=\"https:\/\/www.ideastatica.com\/support-center\/faq\/what-is-the-cbfem\" target=\"_blank\" rel=\"noopener noreferrer\">\u0160to je CBFEM<\/a> (IDEA StatiCa)<\/li>\n\n\n\n<li><a href=\"https:\/\/gradst.unist.hr\/\" target=\"_blank\" rel=\"noopener noreferrer\">Fakultet gra\u0111evinarstva, arhitekture i geodezije, Sveu\u010dili\u0161te u Splitu<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.marjan-parksuma.hr\/\" target=\"_blank\" rel=\"noopener noreferrer\">Javna ustanova za upravljanje park-\u0161umom Marjan<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.parabuild.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Parabuild<\/a> (slu\u017ebena stranica proizvo\u0111a\u010da)<\/li>\n\n\n\n<li><a href=\"https:\/\/baldinistudio.hr\/en\/idea-statica\/\">IDEA StatiCa<\/a>, <a href=\"https:\/\/baldinistudio.hr\/en\/scia-engineer\/\">SCIA Engineer<\/a> i <a href=\"https:\/\/baldinistudio.hr\/en\/parabuild\/\">Parabuild<\/a> u ponudi Baldinistudija<\/li>\n\n\n\n<li><a href=\"https:\/\/baldinistudio.hr\/en\/sto-stoji-iza-uspjesnog-projekta-paromlina\/\">\u0160to stoji iza uspje\u0161nog projekta Paromlina<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/baldinistudio.hr\/en\/trgovina\/\">Store<\/a> i <a href=\"https:\/\/baldinistudio.hr\/en\/kontakt\/\">kontakt<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Vidikovac u park-\u0161umi Marjan visok je 19 metara i gotovo da nema tipskog spoja. Kako je projektiran: globalna analiza u SCIA Engineer-u, dokaz spojeva metodom CBFEM u IDEA StatiCa-i Connection i radioni\u010dki nacrti u Parabuild-u.<\/p>","protected":false},"author":2,"featured_media":5733,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[55,79,70],"softver":[18,17],"class_list":["post-5743","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-idea-statica","tag-parabuild","tag-scia-engineer","softver-idea-statica","softver-scia-engineer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vidikovac na Marjanu: \u010deli\u010dna konstrukcija - Baldinistudio<\/title>\n<meta name=\"description\" content=\"Vidikovac na Marjanu: 19 metara \u010delika, tri nosive cjeline i nestandardni spojevi projektirani 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