Challenges and Considerations for the Retrofit of Existing Structures for Progressive Collapse
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 5
Abstract
The present paper discusses the challenges of retrofitting buildings to meet current progressive collapse guidelines. The knowledge of the structural capacity depends on the quality of information available. The existence of original drawings greatly facilitates the understanding of the design intent. However, drawings are not always available and information must be also obtained through on-site testing. A case study of the retrofit of a 5-story flat plate concrete structure is presented, where the floor slabs are hung from a new steel girder located above the roof using high strength steel rods. Neglecting the contributions of the existing structure, the failure mode of this system is ductile beam flexural mode. However, the analysis presented show that a brittle shear failure at the slabs can occur when the existing concrete column and its reinforcement are incorporated into the analysis.
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References
American Concrete Institute (ACI). (2011). “Building code requirement for reinforced concrete and commentary.”, Detroit.
ASCE. (2006). “Seismic rehabilitation of existing buildings.”, Reston, VA.
Computers, and Structures Inc (CSI). (2013). SAP 2000 version 16.0, Berkeley, CA.
Department of Defense (DoD). (2013). “Design of buildings to resist progressive collapse.”, Washington, DC.
General Service Administration (GSA). (2011). “General services administration facility security requirements for explosive devices applicable to facility security levels III and IV—ISC physical security criteria interpretation.” Washington, DC.
General Service Administration (GSA). (2013). “Alternate path analysis and design guidelines for progressive collapse resistance.” Washington, DC.
Liu, J., Tian, Y., and Orton, S. (2013). “Vulnerability of disproportionate collapse in older flat plate buildings subjected to sudden removal of a bearing column.” Proc., 2013 Structures Congress, ASCE, Reston, VA, 2814–2823.
Qian, K., and Li, B. (2013). “Experimental study of drop-panel effects on response of reinforced flat slabs after loss of corner column.” ACI Struct. J., 110(2), 319–330.
Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 29 • Issue 5 • October 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 1, 2014
Accepted: Aug 11, 2014
Published online: Sep 8, 2014
Discussion open until: Feb 8, 2015
Published in print: Oct 1, 2015
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