Prediction of Nonlinear Seismic Building Behavior

by Stephen A. Mahin, (A.M.ASCE), Asst. Prof. of Civ. Engrg.; Univ. of California, Berkeley, Calif.,
Vitelmo V. Bertero, (M.ASCE), Prof. of Civ. Engrg.; Univ. of California, Berkeley, Calif.,


Serial Information: Journal of the Technical Councils of ASCE, 1978, Vol. 104, Issue 1, Pg. 21-37


Document Type: Journal Paper

Abstract: This paper reviews many of the nonlinear computer programs currently used in seismic-resistant design, and examines and compares them in light of the data available on the actual seismic behavior of structures and of the needs of the design profession. Particular attention is devoted to programs that simulate the response of structural steel and reinforced concrete moment-resisting frames and frame-wall structural systems. Computer programs are categorized into three groups depending on the level at which a structure is idealized: (1)Macroscopic idealizations based on simplified mechanical models for structural subassemblages; (2)discrete element idealizations based on simplified mechanical models of individual members; and (3)microscopic idealizations based on finite element or other models of critical regions of members. Within each group, the principal limitations, assumptions, and capabilities of various programs are discussed, and recommendations for future development are offered.

Subject Headings: Seismic design | Computer models | Seismic tests | Steel frames | Concrete frames | Structural models | Computer software | Structural behavior

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