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Noncontact Lap Splices in Bridge Column-Shaft Connections
Lap splices in reinforced concrete members typically consist of bars overlapped and placed in contact with each other. In the case of a large-diameter foundation shaft connecting to a smaller-diameter column, it is not possible to have the longitudinal bars be continuous, nor is it possible to provide a standard lap splice; instead an offset or noncontact lap splice of the longitudinal bars is required. With a noncontact lap splice, transfer of forces from one spliced bar to the other occurs through the surrounding concrete, and transverse reinforcement is typically required to provide satisfactory splice performance. Current code provisions on noncontact lap splices are very limited. This study experimentally investigated the behavior of noncontact lap splices in bridge column-shaft connections.
Noncontact Lap Splices in Bridge Column-Shaft Connections
Lap splices in reinforced concrete members typically consist of bars overlapped and placed in contact with each other. In the case of a large-diameter foundation shaft connecting to a smaller-diameter column, it is not possible to have the longitudinal bars be continuous, nor is it possible to provide a standard lap splice; instead an offset or noncontact lap splice of the longitudinal bars is required. With a noncontact lap splice, transfer of forces from one spliced bar to the other occurs through the surrounding concrete, and transverse reinforcement is typically required to provide satisfactory splice performance. Current code provisions on noncontact lap splices are very limited. This study experimentally investigated the behavior of noncontact lap splices in bridge column-shaft connections.
Noncontact Lap Splices in Bridge Column-Shaft Connections
D. I. McLean (author) / C. L. Smith (author)
1997
55 pages
Report
No indication
English