SHEAR BEHAVIOR OF MULTI-STORY RC STRUCTURAL WALLS WITH ECCENTRIC OPENINGS

摘要

Static loading test was conducted on four 40%-scale specimens in order to evaluate the shear transfer mechanisms of structural walls with eccentric openings. Specimen configuration was determined from a typical six-story building in Japan. The experimental variables were the size and location of openings. From experimental results, shear strength of specimens were estimated using the existing codes and reduction factors. It was shown that the shear strengths of specimens were estimated combining the shear strength of structural walls without openings and Ono's reduction factor. The employed computing method well simulated the test results. It was proved that the method may be applied to structural walls with the opening ratio less than 0.46. Then a two-dimensional FEM analytical model was constructed to simulate the behavior observed in the experiment. The model well simulated lateral load drift angle relations and damage distribution of wall panels.