補修・補強（材料）Ⅱ

[1314] IMPROVING INSUFFICIENT INSERTION LENGTH MECHANICAL SPLICES IN RC STRUCTURES

座長(土木)：濵田秀則
座長(建築)：小島正朗
講演者：Dac Phuong NGUYEN¹, 睦好宏史², Erina MAEDA¹ (1.Saitama University 2.埼玉大学)

キーワード：cyclic loading, mechanical splices, reinforced concrete, staggering length, メカニカルスプライス, 繰り返し荷重, 鉄筋コンクリート, 驚異的な長さは

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Mechanical splices are sometimes installed incorrectly in a construction site when the centers of two steel bars are deviated. As a result, the steel bars are not embedded sufficiently in a coupler. RC structures using such mechanical splices cannot achieve properties as expected. This paper develops a new recovery splice for improving such mechanical splices. The RC beams using the recovery splices showed the same load carrying capacity and crack width as the control beam without mechanical splices.