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Repair and Strengthening of Reinforced Concrete Slab-Column Connections

 Repair and Strengthening of Reinforced Concrete Slab-Column Connections
Author(s): , ,
Presented at 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008, published in , pp. 84-85
DOI: 10.2749/222137908796291886
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Seven 2/3-scale interior slab-column connections were tested to quantify the effects of earthquake damage, and the efficiency of various rehabilitation techniques on repairing seismic damaged slab-...
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Bibliographic Details

Author(s):


Medium: conference paper
Language(s): English
Conference: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008
Published in:
Page(s): 84-85 Total no. of pages: 8
Page(s): 84-85
Total no. of pages: 8
Year: 2008
DOI: 10.2749/222137908796291886
Abstract:

Seven 2/3-scale interior slab-column connections were tested to quantify the effects of earthquake damage, and the efficiency of various rehabilitation techniques on repairing seismic damaged slab- column connections and improving the two-way shear strength of deficient connections. Three alternatives for rehabilitating slab-column connections were experimentally evaluated: (i) installation of steel collars, (ii) installation of external Carbon Fiber Reinforced Polymers (CFRP) stirrups, and (iii) application of well-anchored CFRP sheets. All three techniques increased the connection strength and improved the residual capacity after punching failure.

Keywords:
strengthening repair punching shear anchors CFRP stirrups CFRP sheets Seismic-damaged Steel collars Two-way shear