| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Outline of Final Research Achievements |
Resistance, deformation behaviour and failure of splice connections with high strength friction grip bolts exposed to fire were clarified by this experimental study. Maximum load from high temperature transient tests of the connection agreed with or slightly exceeded the calculated results based on the material test results under the strain rate of 7.5%/min. The ductility of the joints was larger for the thin-plate specimen (tear-out failure type) than for the thick-plate specimen (bolt in shear failure type) in case of not only the heating phase but also the cooling phase in fire. On the basis of these test results, the analytical model of the connection was proposed with the component-based method and the model was adopted in the program of structural fire behaviour for steel frames. This enables the analysis on the behaviour and robustness of steel frames on the connection behaviour in case of the fire.
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