Inelastic Material Models in Earthquake Response

by Clifford O. Hays, Jr., (M.ASCE), Assoc. Prof. of Engrg.; Univ. of Florida, Gainesville, Fla., 32611,


Serial Information: Journal of the Structural Division, 1981, Vol. 107, Issue 1, Pg. 13-28


Document Type: Journal Paper

Abstract: A computer program for the static and dynamic analysis of plane frames subjected to large inelastic deformations is reviewed. Nonlinear material, soil structure, and geometric effects are simultaneously considered. Problems are solved showing the influence of the stress-strain model on the static and dynamic response of frames subjected to large static load reversals and earthquake motions. Results indicate that while more accurate models are available for structural steel, the relatively simple Masing model is able to simulate the inelastic force-deformation response of frames quite well over a large range of inelastic deformations; even plastic-hinge models may predict accurate frame response.

Subject Headings: Model accuracy | Inelasticity | Structural models | Deformation (mechanics) | Simulation models | Steel frames | Dynamic structural analysis

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