Precast concrete

[2079] FUNDAMENTAL PULLOUT EXPERIMENTS ON JOINTS OF PRECAST SLABS IN BRIDGES USING CFRP STRAND

Hue Thi NGUYEN¹, Hiroshi MASUYA², Hiroshi WATASE³, Toru TANAKA⁴ (1.Kanazawa University 2.金沢大学 3.オリエンタル白石 4.東京製綱)

Keywords:Carbon Fiber Reinforced Plastics Strand, joint, precast slab, pullout, プレキャストスラブ, 引き抜き, 接合, 炭素繊維強化プラスチックストランド

The paper presents an experimental fundamental study on joint of precast slab in bridge with Carbon Fiber Reinforced Plastics Strand (CFRP strand) application. A series of pullout tests were conducted with various specimens and the different setup. Finally, a method how to use CFRP strand at joint part were proposed to improve the bond capacity between concrete and CFRP strand, reduce the width of the joint, keep high durability of the structure. Besides, the suitability of CFRP strand reinforcing for the pre-cast concrete deck was confirmed.

Keywords: Carbon Fiber Reinforced Plastics Strand (CFRP Strand), pullout, joint, precast slab