1. Calculation of fire resistance of the main beams of the sports hall
- Author
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Stilin, Petra, Zovkić, Jurko, Markulak, Damir, and Radić, Ivan
- Subjects
zakrivljeni nosač ,lijepljeno lamelirano drvo ,požar ,požarna opornost ,metoda smanjenja presjeka ,reduced cross-sectional method ,curved girder ,fire resistance ,glued laminated wood ,fire - Abstract
Zadatak diplomskog rada je proračunati požarnu otpornost glavnih i sekundarnih nosača krovne konstrukcije sportske dvorane Briješće u Briješću. Tlocrtne dimenzije sportske dvorane su 22,85 x 33,90 m, a visina strehe je 10,37 m s nagibom krovišta 11,1°. Statički sustav glavnog nosača i podrožnica je prosta greda pravokutnog poprečnog presjeka. Materijal glavnog nosača je lijepljeno lamelirano drvo razreda čvrstoće GL24h, a podrožnica cjelovito drvo razreda čvrstoće C24. Prostorna stabilizacija krovišta je izvedena kao sustav dijagonala kružnog poprečnog presjeka kvalitete čelika S275. Koncept proračuna požarne otpornosti prikazan je prema važećim normama Eurokoda 5 (EN 1995-1-2) za glavni nosač te sekundarne nosače. Statička analiza provedena je u računalnom programu Autodesk Robot Structural Analysis Professional 2018, a grafički prilozi u računalnom programu AutoCAD 2020., This paper aims to compute the fire resistance of the primary and secondary girders for the roof structure of the gymnasium in Briješće. The gymnasium’s plan dimensions amount to 22,85 x 33,90 metres, and the eaves’ height amounts to 10,37 metres with the slope of the roof of 11,1°. The static system of the primary girder and branch equal a simple beam of a rectangular cross-section. The primary girder is made out of glued, laminated wood in the strength of GL24h, and the branch out of solid wood in the strength of C24. Spatial stabilisation of the roof was performed as a circular-cross section diagonal system of S275 steel quality. The concept of fire resistance calculation is portrayed according to the applicable standards of the Eurocode 5 (EN1995-1-2) for the primary and secondary girders. Static analysis was conducted in the Autodesk Robot Structural Analysis Professional 2018 computer programme and the graphical annexes in the AutoCAD 2020.
- Published
- 2021