Title Ductile Behaviour of Slab-Column Connections with Partially Debonded Reinforcement under Cyclic Lateral Loading
Authors Choi Jung-Wook
Page pp.43-50
ISSN 12269107
Keywords Slab-column Connection ; Partial Debonding ; Drift Capacity ; Cyclic Lateral Loading
Abstract Slab-column connections in a flat plate structure must possess sufficient drift capacity to survive lateral deformation resulting from wind or earthquake. Partial debonding of the flexural reinforcement may be an efficient means of increasing drift capacity of a slab-column structure. This article summarizes tests conducted on two full-scale interior slab-column connections with and without partially debonded reinforcement subjected to cyclic loading. Each test specimen consisted of a 4.2m square slab with a 355mm square column protruding 1.5m above and below the slab. The slab thickness was 152mm. The specimen with partially debonded reinforcement exhibited more lateral drift capacity than did the specimen with fully bonded reinforcement. With partial debonding of the flexural reinforcement, cyclic load appeared to produce less damage to the connection in the vicinity of the slab-column joint region.