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JOURNAL OF FACULTY OF CIVIL ENGINEERING
INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVILENGINEERING 25, 2014.y., pp. 219-225


IMPROVEMENT OF UPPER SLAB OF TUNNEL DRIER BRICKYARD ,,MLADOST’’ I TOPLICA MALA PLANA
 
DOI: 10.14415/konferencijaGFS2014.029
UDC: 666.3.047:69.052.32
CC-BY-SA 4.0 license
Author : Stanojev, Milovan; Zlatkov, Dragan; Budić, Srđan; Petronijević, Predrag
 
 Summary:
 In existing static calculation of reinforced concrete construction of tunnel drier dated 1981., there were not analyzed serviceability limit states (deflections and cracks), and the impact due to the large temperature differences that can occur in the slab between the air channels (which are above the mezzanine structure) and space for bricks drying. During the operation significant deflections appeared in the far field, which prevents the movement of wagons with clay products which are dried, so the structure must be repaired. In the fields of slabs upper zone was not reinforced, and exactly in these places large temperature difference occured, which further led to the degradation of stiffness in reinforced concrete slabs and cracking . It is proposed to improve new construction of longitudinal steel frame that accepts a mezzanine structure, but due to changes in the static system and the influence of temperature difference, upper surface is reinforced with steel elements. In this manner span is reduced reduced, which allows a smooth manipulation of the wagons below it and at the same time increases the durability of the structure .
 
 Keywords:
 Tunnel drier, temperature difference, deflection, reinforcement