Journal of
Faculty of Civil Engineering

CONFERENCE PROCEEDINGS INTERNATIONAL CONFERENCE
"CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2015 "
FACULTY OF CIVIL ENGINEERING SUBOTICA , 2015.y., pp. 103-110

	DOI: 10.14415/konferencijaGFS 2015.012
	UDC: 69.059.35:727.4
	CC-BY-SA 4.0 license
	Author : Bešević, Miroslav T.; Stojiljković, Dragan; Prokić, Aleksandar; Tabaković, Dragana
	Summary:
	For the purpose of upgrading the sixth floor of The School of Electrical and Computer Engineering of Applied Studies in Belgrade, it was necessary to develop an upgrade design of the existing facility. The existing facility is located in Vojvode Stepe Street and it has Gf + 5 floors, with base (the part for upgrade) 36.8 x 15.03 m, and it is anticipated that facility will be upgraded with approx. 550 m2 in the form of mansard roof. Newly designed supporting structure for upgrade is in the form of a steel structure with a self-supporting sandwich Fe plasticized panels (most of the roof surface) in combination with wooden rafters on steeper roof flats, where intended roof covering is in the form of eternit panels. In static terms main supporting steel structure system is double-hinged frame supported by existing beam-columns in facade planes. Sheets, profiles and finished welded profiles (hip rafter) of steel quality S235 are used to create supporting steel structure, and extensions are achieved with ordinary screws of strength class 5.6 and corner welding seams. The existing building was constructed as a masonry structure with vertical reinforced concrete columns and vertical ring girder, while floor construction is designed as ribbed construction supported by the system of beams and vertical ring girders. Foundation of the structure was carried out on reinforced concrete two-way grid, with different cross-sections in accordance with the static actions.
	Keywords:
	upgrade, testing, recording, steel construction, extensions, reconstruction, recovery