EXPERIMENTAL STUDY ON ANCHORAGE STRUCTURES WITH REINFORCING BARS AND H-BEAMS IN TSUNAMI BREAKWATER

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  • 津波防波壁における鉄筋およびH形鋼を用いた定着構造に関する実験的研究

Abstract

<p> In this study, various tests were performed on the anchoring structure of Tsunami breakwaters. For the anchorage structure using reinforcing bars and cement milk, it was confirmed that the bond strength of the anchorage structure of the reinforcing bars had a margin of safety equivalent to the bond strength between reinforcing bars and concrete compared with the bond strength of Standard Specifications for Concrete Structures. Although limited cracking occurred on the edge surface, pull-out load did not decrease, confirming that there was no effect on the anchoring performance of the reinforcing bars under the experimental conditions. Also, to elucidate the load-bearing capacity of the anchoring structure between a steel H-beam as a shear keys and the bed-rock, a shear loading test using a full-scale physical model was conducted. Although cracks appeared in the concrete due to the behavior of the H-beam under the load, the load gradually increased until reaching its maximum value. Strain measurements on the H-beam confirmed that their behavior under the load was generally within the elastic range on this experiment.</p>

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