Seismic Analysis of Elastoplastic MDOF Structures
Publication: Journal of Structural Engineering
Volume 114, Issue 6
Abstract
Approximate methods for the estimation of maximum story drift in elastoplastic multidegree‐of‐freedom (MDOF) shear buildings are examined. The structures considered have fundamental periods in the range of 0.4–4.0 seconds and have one, two, three, five, and ten degrees of freedom. Responses for maximum ductility levels of one (elastic), two, five, and ten are considered. Two methods for predicting the maximum story drift are developed and evaluated. In the first method, the response of the multidegree‐of‐freedom inelastic system is estimated by applying two deamplification factors to the elastic spectrum of the single degree‐of‐freedom system. The second technique identifies an equivalent linear multidegree‐of‐freedom system. The effects of the number of degrees of freedom and the maximum ductility level on the deamplification factors and the equivalent linear parameters are described.
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References
1.
Al‐Sulaimani, G. J., and Roessett, J. M. (1985). “Design spectra for degrading systems.” J. Struct. Engrg., ASCE, 111(12), 2611–2623.
2.
Housner, G. (1952). “Spectrum intensities of strong‐motion earthquakes.” Proc. Symp. on Earthquake and Blast Effects on Struct., Earthquake Engineering Research Institute, Jun., 20–36.
3.
Iwan, W. D. (1980). “Estimating inelastic response spectra from elastic spectra.” Earthquake Engrg. and Struct. Dyn., 8(4), 375–388.
4.
Iwan, W. D., and Gates, N. C. (1979). “The effective period and damping of a class of hysteretic systems.” Earthquake Engrg. and Struct. Dyn., 7(3), 199–211.
5.
Kannan, A. E., and Powell, G. H. (1973). DRAIN‐2D a general purpose program for dynamic analysis of inelastic plane structures, a computer program distributed by NISEE/Computer Applications, Univ. of California, Berkeley, Calif., Apr.
6.
Newmark, N. M., and Hall, W. J. (1973). “Procedures and criteria for earthquake resistant design.” Building Science Series No. 46, vol. 1, National Bureau of Standards, Gaithersburg, Md., Feb., 209–236.
7.
Pecknold, D. A., and Riddell, R. (1978). “Effect of initial base motion on the response spectra.” J. Engrg. Mech. Div., ASCE, 104(2), 485–491.
8.
Pecknold, D. A., and Riddell, R. (1979). Closure to “Effect of initial base motion on the response spectra.” J. Engrg. Mech. Div., ASCE, 105(6), 1057–1060.
9.
Riddell, R., and Newmark, N. M. (1979). “Statistical analysis of the response of nonlinear systems subjected to earthquakes.” Civil Engineering Studies, Structural Research Series No. 468, Univ. of Illinois, Urbana, Ill., Aug.
10.
Sehayek, S. (1976). “Effect of ductility on response spectra for elasto‐plastic systems.” Research Report R76‐42, Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Sep.
11.
Shibata, A., and Sozen, M. A. (1976). “Substitute‐structure method for seismic design in R/C.” J. Struct. Div., ASCE, 102(1), 1–18.
12.
Srivastav, S. (1986). “Seismic analysis of a class of elastoplastic multidegree of freedom structures,” thesis presented to North Carolina State Univ., Raleigh, N.C., in partial fulfillment of the requirements for the degree of Master of Science.
13.
Veletsos, A. S., and Vann, W. P. (1971). “Response of ground‐excited elastoplastic systems.” J. Struct. Div., ASCE, 97(4), 1257–1281.
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Copyright © 1988 ASCE.
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Published online: Jun 1, 1988
Published in print: Jun 1988
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