軸力と交番載荷を受けるフレキシブルRC橋脚の復元力特性と軸方向鉄筋の伸び出し量に関する考察  [in Japanese] STUDY ON THE RESTORING FORCE CHARACTERISTICS AND ELONGATION OF AXIAL REINFORCEMENT OF THE FLEXIBLE RC PIER UNDER CYCLIC LOAD AND AXIAL FORCE  [in Japanese]

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Abstract

著者らが行ったフレキシブルRC橋脚模型供試体の単調水平載荷実験によれば,本橋脚は柱のせん断破壊や曲げ破壊と異なる,両破壊モードの中間的な破壊性状を呈することが分かった.しかし,当該橋脚の復元力特性を適切に評価するためには,軸力の影響を含めた交番水平載荷実験も必要である.<br> そこで本研究では,軸力と交番水平載荷を受ける状態の実験を行い,既往の単調載荷実験との比較も含めて,復元力特性に及ぼす軸力や交番載荷の影響,横方向鉄筋の補強効果を評価し,さらに変形性能の評価に影響を与える軸方向鉄筋の伸び出し量に関しても検討した.

 According to monotonic horizontal loading tests of the flexible reinforced concrete (RC) pier model specimen, the failure characteristics do not follow the former shear failure or flexure failure, but it is between the two failures. To evaluate the restoring force characteristics of the flexible RC pier, the cyclic loading tests under axial force should be conducted.<br> In this study, the cyclic loading tests under axial force was performed, which were compared with monotonic horizontal loading tests. The influence of axial force and cyclic loading to restoring force characteristics was evaluated together with the reinforce effect of transverse reinforcement. In the meanwhile, the factors of elongation of axial reinforcement greatly affecting deformation capacities was discuessed.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 70(4), I_433-I_442, 2014

    Japan Society of Civil Engineers

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