{"id":38888,"date":"2019-10-31T22:26:35","date_gmt":"2019-10-31T19:26:35","guid":{"rendered":"https:\/\/prohoster.info\/blog\/inzhenery-na-modeli-proverili-proekt-krupnejshego-v-mire-arochnogo-mosta-leonardo-da-vinchi\/"},"modified":"2019-10-31T22:26:35","modified_gmt":"2019-10-31T19:26:35","slug":"inzhenery-na-modeli-proverili-proekt-krupnejshego-v-mire-arochnogo-mosta-leonardo-da-vinchi","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/inzhenery-na-modeli-proverili-proekt-krupnejshego-v-mire-arochnogo-mosta-leonardo-da-vinchi","title":{"rendered":"Ing\u00e9niererne testede projektet om den st\u00f8rste buebro i verden, Leonardo da Vinci.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I 1502 \u00f8nskede sultan Bayazid II at bygge en bro over Corniche-gulfen for at forbinde Istanbul og den n\u00e6rliggende by Galata. Blandt reaktionerne fra datidens f\u00f8rende ingeni\u00f8rer var projektet fra den velkendte italienske kunstner og videnskabsmand Leonardo da Vinci s\u00e6rligt originalt. De traditionelle broer p\u00e5 det tidspunkt havde en markant buet form med flere sp\u00e6nd. For broen over gulfen ville der v\u00e6re brug for minimum 10 st\u00f8ttepiller, men Leonardo skitserede et broprojekt p\u00e5 280 meter uden nogen st\u00f8tte. Det italienske videnskabsmands projekt blev ikke accepteret. Vi kan ikke se dette vidunder. Men er dette projekt funktionelt? Ingeni\u00f8rer fra MIT besvarede dette sp\u00f8rgsm\u00e5l ved hj\u00e6lp af Leonardos skitser. byggede<\/a><\/noindex> en model af broen i skala 1:500 og testede den med hele spektret af mulige belastninger.<\/p>\n

\"Ing\u00e9niererne<\/p>\n

I virkeligheden ville broen best\u00e5 af tusinder af tilhuggede sten. Der var ikke andre egnede materialer p\u00e5 det tidspunkt (forskere fors\u00f8gte at n\u00e6rme sig de byggeteknologier, der var tilg\u00e6ngelige p\u00e5 det tidspunkt og de materialer, der fandtes). For at fremstille modellen anvendte moderne specialister en 3D-printer og delte modellen op i 126 blokke med en bestemt form. Stenene blev sekventielt lagt p\u00e5 stilladserne. Efter installationen af broens topsten blev stilladserne fjernet. Broen forblev st\u00e5ende og ville uden tvivl have st\u00e5et i \u00e5rhundreder. Den italienske videnskabsmand fra ren\u00e6ssancen tog alt med i betragtning: fra seismisk ustabilitet i regionen til sidebelastningen p\u00e5 broen.<\/p>\n

Den af Leonardo valgte form af den flade bue tillod skibssejlads gennem gulfen, selv for sejlb\u00e5de med rejste master, og den bredende konstruktion sikrede stabilitet mod sidebelastninger og, som fors\u00f8g med den skalerede model viste, seismisk stabilitet. De bev\u00e6gelige platforme i bunden af buen kunne bev\u00e6ge sig inden for betydelige gr\u00e6nser uden at hele konstruktionen kollapsede. Tyngdekraften og ingen fastg\u00f8relse ved hj\u00e6lp af m\u00f8rtel eller beslag - Leonardo vidste, hvad han foreslog.<\/p>\n

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Kilde: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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