大型振動台による鉄筋コンクリート耐震壁フレーム構造の耐震性に関する研究 : 実大6層試験体と3次元振動台実験結果の概要

概要

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Response of reinforced concrete wall-frame structures subjected to earthquake motions was investigated by testing a full-scale six-story specimen on the world s largest tri-axial shaking table "E-Defense". The test specimen consisted of three parallel three-bay frames in the longitudinal direction. The span widths were each 5.0 m in the longitudinal and transverse direction. The central frame had a structural wall in the central bay continuous from the 1st to the 6th story. Spandrels were placed above 1st to 6th floor girders in one of the outer frames in the longitudinal direction. The structure was designed based on the code of design and practice in 1970'. All columns and walls were defined as flexural yielding type based on current code calculation. The test specimen was subjected to series of earthquake motions and finally collapsed due to shear failure in short columns and the structural wall at I st story during a strong earthquake motion. The test results were studied with respect to structural performance, collapse process, response story shear, and vertical distribution of lateral forces.
2007-04-30