曲げモーメント勾配を考慮した梁端重ね継手の強度に関する実験研究

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タイトル別名
  • ULTIMATE STRENGTH OF LAPPED SPLICES IN THE HINGE AREA CONSIDERING BENDING MOMENT SLOPE
  • マゲ モーメント コウバイ オ コウリョシタ リョウタンカサネ ツギテ ノ キ

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抄録

Incase that spliced joints are located in the flexural hinge area of beams, the bond strengh of spliced bars that are anchored in column is of specific importance. That is because the strength of column-anchored bars is lager than the bond strength of bars that are contained in beams or the bond stress of non-spliced bars. But ti happens that the stress of beam-contained bars is close to that of column-anchored bars or equivalent to that of non -spliced bars due to variation of the moment slope. On the definition of strength of splices such stress transfer mechanism of splices should be considered. In this paper we have conduced the test in which the stress ratio of column-anchored bars to beam-contained bars and the amount of transverse reinforcements were employed as parameters. It is clear that the strengh of spliced members decreased by 20% of non -spliced members when the stress of bean-contained bars became half f that of column-ancored bars. So we could establsh a method of strengh design of lapped splices considering stress transfer mechaism of those.

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