Models for RC Frames with Degrading Stiffness

by James C. Anderson, (M.ASCE), Asst. Prof. of Civ. Engrg.; Univ. of Southern California, Los Angeles, Calif.,
William H. Townsend, (M.ASCE), Asst. Prof. of Civ. Engrg.; State Univ. of New York at Buffalo, Buffalo, N.Y.,

Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 12, Pg. 2361-2376

Document Type: Journal Paper

Discussion: Otani Shunsuke (See full record)
Closure: (See full record)

Abstract: Analytical models for representing the hysteretic behavior of reinforced concrete members are reviewed. Based on results of exterior connection tests, two degrading trilinear models are suggested, one of which considers the effect of the connection. The inelastic dynamic response of a 10-story single-bay frame to earthquake excitation is evaluated using the two proposed models. For purposes of comparison, the response using a bilinear model and degrading bilinear model is also considered. Results show that inclusion of the degrading concrete stiffness and reduced connection stiffness has a significant effect on the response.

Subject Headings: Structural models | Reinforced concrete | Stiffening | Model tests | Concrete frames | Model analysis | Material properties |

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