论文?报告
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柱と梁のいずれもアンボンド笔颁部材とした柱梁接合部の実験を実施した。柱梁接合部に铅直方向と水平方向の贯通孔を设けて、体积空隙率を実験変数とした。アンボンド笔颁补笔颁柱梁接合部のせん断终局耐力は、体积空隙率が约10%の场合にはボンド笔颁のせん断终局耐力式による计算値と同等となり、体积空隙率が约15%の场合にはその计算値を9%下回った。柱梁强度比が1程度の试験体であったが、破壊形式は接合部降伏破壊ではなくコンクリート圧壊型の钓合破壊であった。 キーワード: アンボンド笔颁、柱梁接合部、せん断终局耐力、体积空隙率、钓合破壊 |
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Loading tests were conducted on precast prestressed beam-column joints in which both columns and beams were post-tensioned by unbonded tendons. Vertical and horizontal through-holes were provided at beam-column joints, and the volume void ratio was used as an experimental variable. The ultimate shear strength of unbonded PCaPC beam-column joints was equivalent to the calculated value by bonded PC formula when the volume void ratio was about 10%, and it was 9% lower than the calculated value when it was about 15%. Although the column-to-beam strength ratio of the test specimen was about 1, the beam-column joint yielding had not occurred. Key Words: Unbonded Prestressed Concrete, Beam-column Joint, Ultimate Shear Capacity, Volume Void Ratio, Balanced Failure |
论文