Naslov
IMPROVEMENT OF SAFTEY OF COLUMNS WITH GEOMETRICAL IMPERFECTIONS IN FRAME STRUCTURES
(IMPROVEMENT OF SAFTEY OF COLUMNS WITH GEOMETRICAL IMPERFECTIONS IN FRAME STRUCTURES)

Autori
Hoster, Josip ; Stavljenić, Doris ; Katić, Marin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
8th International Professional and Scientific Conference OCCUPATIONAL SAFETY AND HEALTH / Kirin, Snježana ; Štedul, Ivan ; Bubaš, Marija - Karlovac : Veleučilište u Karlovcu, 2022, 335-340

Skup
8. međunarodni stručno-znanstveni skup "Zaštita na radu i zaštita zdravlja"

Mjesto i datum
Zadar, Hrvatska, 21.09.2022. - 24.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
safety, column, frame structure, buckling, geometrical imperfection.

Sažetak
In this paper derivation of differential equation describing buckling of a column with initial geometrical imperfections and variable cross – section is presented. The column geometry (the cross section) is changeable (variable), for the purpose of achieving higher load carrying capacity at given load set with optimizing the material quantity. A solution of the differential equation has been obtained by the collocation method. The assessment of safety (carrying capacity) of such a loaded column is carried out comparing the extreme stress in the deformed column with the material limit stress value with a dictated safety factor. Side loads, such as the wind pressure, is condensed into a side force at the column tip. The vertical loads act twofold on the columns ; directly compressional and indirectly flexural through the horizontal beam and column joint due to flexing of horizontal beam. The results show improvement in safety by adding simple widening of hot rolled standard HE profiles by inserting distance plates and welding.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA