| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
Using finite element method, this study investigated Buckling Restrained Brace (BRB) behavior with large clearance to propose effective stiffness requirements that include consideration of the influences of friction and clearance of the BRB. The obtained results demonstrate that friction is negligible for calculating the deflection of the BRB cover at the center when subjected to axial force. In addition, the clearance influences both the deflection and the stiffness requirements of the BRB cover to sustain the complete performance of the BRB. Finally, the obtained results were compared with those of the AIJ codes. The results demonstrated that the AIJ codes estimate stiffness as less than FEM does for a large clearance in the case of a wide clearance.
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