SEISMIC RESPONSES OF FRAME-WALL COLUMN COUPLING STRUCTURES CONSIDERING VARYING PLASTIC ZONES : Elasto-plastic behavior of reinforced concrete uniform frames (Part 2)

Abstract

Seismic responses of multistory reinforced concrete frame-wall column coupling structures are studied in consideration of the effect of elasto- plastic behavior of beams, columns, and wall columns. These members are replaced by models with varying plastic zones, which are represented by relationships between bending moment and curvature. Analytical parameter is the ratio of number for the frame to number for the wall column in the frame-wall column coupling structure. Using some seismic records, responses of these coupling structures have been examined on distribution of seismic response shear for the frame, collapse mechanism of the structure, height ratio of inflection point for column, and member ductility.