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CONFERENCE PROCEEDINGS
5th INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVIL ENGINEERING 2017 , 2017.y., pp. 83-92


REHABILITATION-UNDERPINNING OF OBJECT DUE TO REMOVAL (DEMOLITION) OF GROUND FLOORCOLUMNS
 
DOI: 10.14415/konferencijaGFS2017.008
UDC: 69.059.32
CC-BY-SA 4.0 license
Author : Bešević, Miroslav T.; Landović, Aleksandar; Prokić, Aleksandar
 
 Summary:
 Due to new use of the building, it was necessary to remove 6 pillars of theground floor, whose demolition has to ensure the uninterrupted functioning of the placesin object above ground. The existing building has ground floor, first floor and attic. Bearloading structure is combination of reinforced concrete columns (middle part) andvertical and horizontal reinforced concrete elements which are located in facade walls.First floor slab is made from LMT brick elements, which are resting on the longitudinalreinforced concrete beams. Instead of the removed columns a steel I-girders of twodifferent spans (l=12.40m and 10.60m) were places in transverse direction. Girders weremade from two I-beam interconnected in levels of top and bottom flanges. These newgirders, which upheld the upper floor structure, are resting on new reinforced concretecolumns. New columns are built in axes 3΄/C, 3΄/D, 3΄/E, and in 1/C,1/D, 1΄/E. The spatialstability of the newly designed structure is provided by bracing in the level of the upperflange of new steel crossbeams. Reinforced concrete individual foundations of newconcrete columns were built on replaced soil. Existing strip and individual foundationswere under concreted.
 
 Keywords:
 rehabilitation, underpinning, steel structure, reinforced concrete columns, foundations.