NEHRP Clearinghouse

Title
Experimental Study of Small-Scale R/C Columns Subjected to Axial and Shear Force Reversals.
File
PB81192767.pdf
Author(s)
Gilbertsen, N. D.; Moehle, J. P.
Source
National Science Foundation, Washington, DC. Office of Planning and Resources Management., July 1980, 104 p.
Identifying Number(s)
['UILU-ENG-80-2015', 'STRUCTURAL RESEARCH SER-481']
Abstract
Reinforced concrete (R/C) columns were subjected to a series of shear force or simultaneous shear and axial force reversals. The test specimens were similar to the first story columns of model structures designed to investigate dynamic response of R/C structures. Models consisted of nine-story, three-bay frames of approximately one-twelfth scale. The first story was twice the height of other stories. Test variables included the reinforcement ratio, the dead load on the column, and the rate of axial load variation during shear force reversals. Behavior of the specimens was represented by measured hysteresis relations and crack patterns. The observed behavior was compared with the calculated response. Many graphs and tables illustrate the text.
Keywords
Stress strain diagrams; Reinforced concrete; Columns (Supports); Mechanical hysteresis; Dynamic response; Buildings; Earthquake engineering; Shear tests; Earthquakes; Dynamic structural analysis