Dynamic Properties of Reinforced Concrete Shear Wall Structures

摘要

The purpose of this work was to determine the structural properties (stiffness and damping) of low aspect ratio shear wall structures that can be used in lumped mass models to predict their dynamic response. Instrumentation was used to separate the deformation of the structures into components caused by shear and components caused by bending so that individual components of stiffness can be examined. Results from these experiments showed that the current industry standard of using a stiffness based on an uncracked cross-section, strength-of-materials analysis, neglecting the reinforcement, and including shear deformation is appropriate prior to cracking. After cracking, the stiffness was shown to be a function of load level, past load history, and the amount of reinforcement. 96 refs., 53 figs., 12 tabs. (ERA citation 14:020064)