ULTIMATE STRENGTH OF SLEEVE JOINTS BETWEEN CONCRETE-FILLED CIRCULAR STEEL PIPES

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  • コンクリート充填鋼管ソケット接合部の耐力評価
  • コンクリート ジュウテン コウカン ソケット セツゴウブ ノ タイリョク ヒョ

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Abstract

For a connection between two concrete-filled cirailar steel pipes, a simple sleeve joint in which a smaller diameter pipe is inserted by the specific length to a larger diameter pipe with a concrete or mortar annulus filling the gap between them has been proposed as an economical and effective joint system. In the present paper, the load-carrying capacities and failure mechanisms of the present joint system are experimentally investigated. The experiments indicate that the ultimate and yield strength increase proportionally with the increase of the overlap length and the wall thickness of pile pipes. In addition, a method to predict ultimate strength of the present joints has been proposed.

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