Hysteretic Behavior of Reinforced Concrete Columns Subjected to High Axial and Cyclic Shear Forces,

摘要

An investigation of the inelastic behavior of short reinforced concrete columns is presented. The results of both experimental and analytical studies are reported. The experimental program was planned to evaluate the hysteretic behavior of short reinforced concrete columns subjected to high axial loads and cyclic shear forces. Column transverse reinforcement was designed with the objective of providing a shear strength,as defined by the UBC 1973requirements for ductile moment-resisting frames,which would be sufficient to develop the column moment capacity under selected design axial loads. The columns were tested as components of a one bay,two story subassemblage of a typical spandrel wall frame. The magnitude of the axial load,the type of transverse reinforcement,and the deformation history were varied to evaluate their influence on column behavior.