EXPERIMENTAL STUDY ON SEISMIC RESTORING PERFORMANCEOF REINFORCED CONCRETE SHEAR WALLS

摘要

Quasi-static test of nine reinforced concrete shear walls are carried out under cyclic lateral loading. Therelationship between force and displacement is obtained so that the macro-finite element model for R/Cshear wall presented in the paper is verified. The corresponding formulations for this model are given.Through comparing the destructed behaviors and grades of the walls under different axial compressionratio and shear span ratio based on the analysis of test and hysteretic curve, it can be concluded as: withthe increasing of axial compression ratio to some range, the bearing capacity of shear wall will increase ifthe shear span ratio of shear walls are same, but the ductility of walls will descend, and degradation ofstrength and stiffness are also more serious. At the same time, with the increasing of shear span ratio, thedestructed behavior of shear walls will be transited from shear wreck to bend wreck. The bearing capacitywill fall, while the ductility and capability of consuming energy of shear walls will be strengthen.