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REVERSING CYCLIC ELASTO-PLASTIC DEMANDS ON STRUCTURES DURING STRONG MOTION EARTHQUAKE EXCITATION.

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Abstract

Using the horizontal components from El Centro 1940, Taft 1952, and 4 accelerograms from the San Fernando earthquake of 2/9/71, the time history of the elasto-plastic displacement response was calculated for oscillators having periods within the range of 1 to 6 s and ductility factors within the range of 3 to 6. The Nth largest peak of the elasto-plastic response (N equals 2,4,8,16), when expressed as a percentage of maximum response (that is, N equals 1), is fairly independent of period within our period range. When considering only plastic peaks occurring, sometimes in a one-directional group of peaks, in the reverse direction from the preceding plastic peak, the amplitude of the Nth reversing plastic peak is similar to the Nth elastic peak, regardless of the ductility factor.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
REVERSING CYCLIC ELASTO-PLASTIC DEMANDS ON STRUCTURES DURING STRONG MOTION EARTHQUAKE EXCITATION.
ISBN:
0943198070
Year Published:
1986
Language:
English
Publisher:
Earthquake Engineering Research Inst
Publisher location:
El Cerrito, CA, USA
First page:
823
Last page:
833
Number of Pages:
11
Conference Title:
Proceedings of the Third U. S. National Conference on Earthquake Engineering.
Conference Location:
Charleston, SC, USA