| Title |
Effects of Axial Load Ratios on Hysteretic Response of High Strength Reinforced Concrete Flexural Walls |
| Abstract |
The results from three story high strength reinforced concrete structural wall models, scaled to one fifth, tested under the combined action of a constant axial and a reversed cyclic lateral load, are presented. The main variable was axial force. The amount of vertical and horizontal reinforcement was the same for the three walls tested. The cross section of all walls was barbell shape. The aspect ratio (hw/lw) was 1.8.The aim of the tests was to investigate the effects of the axial load on high strength R/C structural walls hysteretic behavior.Testing of high strength R/C structural walls subjected to axial load and simulated seismic loading establishes that it is possible to insure a predominantly ductile performance by promoting flexural yielding of vertical reinforcement. From tests investigated, it was found that axial compression within 0.22f'c causes an increase in horizontal load-carrying capacity, secant stiffness characteristics and energy dissipation capacity of high strength R/C walls. |