Reserve strength and rehabilitation of a reinforced concrete building

Çitipitioǧlu E., SUCUOĞLU H., ALTIN S.

1991 ACI International Conference on Evaluation and Rehabilitation of Concrete Structures and Innovations in Design, Hong Kong, hkg, 2 - 06 December 1991, vol.SP-128, pp.1347-1361 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: SP-128
  • City: Hong Kong
  • Country: hkg
  • Page Numbers: pp.1347-1361
  • Keywords: Concrete slabs, Damage, Explosions, Partition walls, Rehabilitation, Reinforced concrete, Repairs, Safety, School buildings, Shoring, Strength, Structural analysis
  • Gazi University Affiliated: Yes


© 1991 American Concrete Institute. All rights reserved.A six story reinforced concrete military school building in Ankara, Turkey was severely damaged as a result of a steam boiler explosion in the basement. Damage was localized to the first and second stories. Upper floors survived the explosion with minor cracks even though three basement and two first floor columns together with the connecting beams and slabs were totally demolished. The building was repaired in 1988 in accordance with the procedure and specifications prepared by the two senior authors. The most critical decision was to allow workers into the damaged building to clear the debris and to set-up temporary shoring for final repair. Extensive analyses revealed that non-load bearing hollow brick partition walls prevented the collapse of the structure by acting as compression struts and thus providing the reserve strength. The rehabilitation of the building was done at a minimum cost by making intermittent openings in existing partition walls to provide continuity in the slabs which had to be recast and by the utilization of the existing reinforcement.