EXPERIMENTAL ERROR EFFECTS IN PSEUDODYNAMIC TESTING

This paper considers the pseudodynamic test method to assess the inelastic dynamic behavior of structures subjected to seismic excitations. The error propagation characteristics of the numerical algorithm used for pseudodynamic testing must be studied in order to assess the reliability and error tolerance limits of the method. This paper presents the mathematical formulas characterizing the cumulative growth of experimental errors. Based on these formulas, the error-propogation characteristics of several integration algorithms currently used for pseudodynamic tests are examined and compared. The influence of the integration time step on the growth of cumulative errors is indicated, and a numerical procedure that minimizes error-propagation effects is identified. The results show the undesirability of certain systematic experimental errors that have hysteretic energy effects.

Availability:
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Corporate Authors:
American Society of Civil Engineers

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New York, NY United States 10017-2398
Authors:
- Shing, P-SB
- Mahin, S A
Publication Date: 1990-4

Media Info

Features: Appendices; Figures; References;
Pagination: p. 805-821
Serial:
- Journal of Engineering Mechanics
- Volume: 116
- Issue Number: 4
- Publisher: American Society of Civil Engineers
- ISSN: 0733-9399
- EISSN: 1943-7889
- Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

TRT Terms: Accuracy; Hysteresis; Inelastic stress; Seismicity; Structural analysis; Structural mechanics; Structures; Testing
Uncontrolled Terms: Inelastic action; Seismic response; Structural behavior
Old TRIS Terms: Pseudodynamic testing
Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

Accession Number: 00494195
Record Type: Publication
Files: TRIS, ATRI
Created Date: May 31 1990 12:00AM