ULTIMATE STRENGTH AND DEFORMATION CAPACITY OF A STEEL AND CONCRETE COMPOSITE PILE-GROUP FOUNDATION BASED ON THE STATIC HORIZONTAL LOADING TEST

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  • 静的水平載荷試験結果による場所打ち鋼管コンクリート群杭基礎の水平耐力と変形性能
  • セイテキ スイヘイ サイカ シケン ケッカ ニ ヨル バショウチ コウカン コンクリートグン クイ キソ ノ スイヘイ タイリョク ト ヘンケイ セイノウ

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Abstract

Static horizontal loading test on a six-piles group foundation was conducted to investigate the ultimate strength and defprmation capacity of steel and concrete composite pile-group foundation. The maximum load was 13,200kN and the maximum horizontal displacement of foundation was 33cm. After the test, the buckling of the steel tube at the pile head was observed. Simulation analyses of the test results and single pile foundation were also conducted using 3 dimentional non-linear finite element method. Based on the test results and analytical results, subgrade reaction for each pile of the six-pile group foundation was studied.

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