| Summary: | 碩士 === 雲林科技大學 === 營建工程系碩士班 === 97 === This experimental program focus on the anchorage behavior of multiple high-strength headed bar within high strength concrete, in a compression-compression-tension (CCT) node within a deep beam. Headed bars have the advantages of reducing the development length and avoiding steel congestion in heavily reinforced structures, especially within high-seismic zone.From previous study headed bars have shown to provide effective mechanical anchorages in placed of traditional hooked bar anchorages, but these studies were limited to normal strength materials. This study shows that adequate mechanical anchorage can be achieve using closely spaced high-strength headed bars within high-strength concrete. The studied parameters within this experimental program include confinement and un-confinement, minimum clear
spacing between bar, concrete compressive strength, and bar size. The observations of crack pattern and stress/strain profile along tension bars are analyzed and reported within this experimental program.
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