CONCRETE STRUCTURE APPLYING CONTINUOUS FIBER REINFORCING MATERIAL AND CONCRETE MEMBER JOINING METHOD: Fid-Bau Portal

CONCRETE STRUCTURE APPLYING CONTINUOUS FIBER REINFORCING MATERIAL AND CONCRETE MEMBER JOINING METHOD

TANAKA TORU / KODA EIJI / TANAKA YOSHIHIRO

To improve the crack resistance performance and corrosion resistance performance of a joint part between two different concrete members.SOLUTION: An elevated bridge has a floor slab 1 and a precast wall balustrade 3 erected on the floor slab 1. Having a large diameter flame-retardant fixing structure 2a provided at both ends, one end of a continuous fiber reinforcing material 2 including the fixing structure 2a is embedded in the floor slab 1. An other end of the continuous fiber reinforcing material 2 including the fixing structure 2a is embedded in the precast wall balustrade 3. The tensioning force of the continuous fiber reinforcing material 2 is introduced as a prestress into the floor slab 1, the precast balustrade 3, and the joint parts thereof.SELECTED DRAWING: Figure 1

【課題】異なる２つのコンクリート部材の接合部のひび割れ抵抗性能および耐腐食性能を向上させる。【解決手段】高架橋梁は，床版１と，床版１上に立設されるプレキャスト壁高欄３とを備えている。両端部に大径の解燃型定着構造２ａを備え，緊張された連続繊維補強材２の一端部が，上記定着構造２ａを含めて床版１に埋設されており，上記連続繊維補強材２の他端部が，上記定着構造２ａを含めてプレキャスト壁高欄３に埋設されている。上記連続繊維補強材２の緊張力が，プレストレスとして床版１，プレキャスト壁高欄３およびこれらの接合部に導入されている。【選択図】図１

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