DEVELOPMENT OF HIGH DUCTILITY ASEISMIC JOINT SPLICED PILE AND ITS BEHAVIOR SUBJECTED TO LIQUEFACTION-INDUCED LARGE GROUND DISPLACEMENTS

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  • 高靱性能耐震ジョイント杭の開発とその側方移動する液状化地盤に対する応答
  • 高靭性能耐震ジョイント杭の開発とその側方移動する液状化地盤に対する応答
  • コウ ジン セイノウ タイシン ジョイント クイ ノ カイハツ ト ソノ ソク

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Abstract

Instead of traditional welding splicer, a High Ductility Aseismic Joint (H. D. A. J.) was newly developed for the pile splicing. In order to examine the energy dissipating effect of H. D. A. J., following procedures were performed. First, a series of experiments was conducted to clarify the characteristics of the splicing by the bending test. Meanwhile, a nonlinear FEM which takes into account both geometric and material nonlinearities was proposed. After checking the validity of the numerical method by simulating the bending test results, numerical analyses were performed to investigate the effectiveness of H. D. A. J. spliced piles subjected to liquefaction-induced large lateral ground displacements.

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