Composite & Mixed structure Ⅰ

[2171] SHEAR RESISTANCE MECHANISMS OF PBL JOINT CONNECTION FOR UFC-PC HYBRID GIRDERS

Puvanai WIORJJANAPIROM¹, Koji MATSUMOTO², Katsuya KONO³, Junichiro NIWA² (1.Tokyo Institute of Technology 2.東京工業大学 3.太平洋セメント)

Keywords:Connection, Hybrid structure, PBL, Shear behavior, UFC, せん断挙動, 接合部, 複合構造

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Shear resistance mechanism of Perfobond strip (PBL) joint with cast-in-place UFC connection for UFC-PC hybrid girders has been studied. Push out test of eight specimens was conducted. Experimental parameters were thickness and hole diameter of PBL and prestressing level on the connection. The experimental results showed that PBL with cast-in-place UFC connection is sufficient to transfer shear forces between segments. Shear resistance mechanisms were investigated. The shear capacity increased as the fiction resistance by the prestressing stress on the connection.