NEHRP Clearinghouse
- Title
- Earthquake Resistant Structural Walls--Tests of Lap Splices.
- File
- PB81188369.pdf
- Author(s)
- Aristizabal-Ochoa, J. D.; Fiorato, A. E.; Corley, W. G.
- Source
- National Science Foundation, Washington, DC. Office of Planning and Resources Management., December 1980, 123 p.
- Identifying Number(s)
- PCA-R/D-SER-1660
- Abstract
- A test program to develop seismic design criteria for lap splices of reinforcing bars is described. Specifically, the effectiveness of tension lap splices under inelastic stress reversals in evaluated. Variables include load history, amount and configuration of lapped reinforcement, and amount of transverse hoop reinforcement around the lapped bars. Tests were performed on eight reinforced concrete column elements. Columns had cross-sectional dimensions of 12 x 12 in. (305 x 305 mm). Longitudinal reinforcement consisted of either four No. 8 bars or eight No. 6 bars. Results indicate that distribution of transverse hoop reinforcement significantly influences performance. Offset reinforcing bars also have a significant effect. Specimens with Class C lap splices and special transverse hoop reinforcement performed well under monotonic and reversing axial loads.
- Keywords
- Earthquake resistant structures; Dynamic loads; Reinforced concrete; Columns (Supports); Walls; Reinforcing steels; Dynamic response; Splices; Earthquake engineering; Lap joints; Design criteria