| 摘要 |
PROBLEM TO BE SOLVED: To accurately evaluate the substantial structural strength of the horizontal plane of the structure of a building by performing a test using a specimen taking in a factor considered to be disadvantageous from an aspect of strength. SOLUTION: A first specimen 12, which sets an X-axis and a Y-axis crossing each other at a right angle and becoming standards of a weak axis and a strong axis to a structural element and uses an X-axis direction as a force application direction to test the reference yield strength of the structural element and a second specimen 14, which uses the Y-axis direction as a force application direction to test the reference yield strength of the structural element, are prepared. Force is applied to the first and second specimens 12 and 14 to measure reference yield strength data and the measured reference yield strength data are compared between the first and second test specimens and the force application direction weaker in strength is judged to be the weak axis direction of the structural element and, further, reference yield strengths are measured with respect to a plurality of the specimens wherein the weak axis direction of the structural element is set to a force application direction and floor magnification is calculated based on these reference yield strengths.
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