CONSTRUCTION METHOD OF PRECAST CONCRETE MEMBER AND JOINT STRUCTURE OF PRECAST CONCRETE MEMBER

To more effectively prevent invasion of a deterioration factor.SOLUTION: In an arrangement process, a pair of precast concrete members 1 with a joint member 1j projecting from an end face 1e are arranged so that the respective joint members 1j face each other; by a filling formation process, in a co...

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Bibliographische Detailangaben
Hauptverfasser: TAKAGI TOMOKO, ICHINOMIYA TOSHIMICHI, YANAI SHUJI, WATANABE ARIHISA, YAMAMOTO TORU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To more effectively prevent invasion of a deterioration factor.SOLUTION: In an arrangement process, a pair of precast concrete members 1 with a joint member 1j projecting from an end face 1e are arranged so that the respective joint members 1j face each other; by a filling formation process, in a construction method of the precast concrete member in which a filling part 2 is formed by filling a filling material 2f in a space 1s between end faces 1e of the pair of precast concrete members 1; by a cover layer forming process, a cover layer 4 is formed by placing ultra-high strength fiber reinforced concrete 4f or high-strength fiber reinforced mortar above a pair of the precast concrete members 1 and the filling part 2 so as to straddle the end face 1e which is a boundary face between the pair of the precast concrete members 1 and the filling part 2. Since the cover layer 4 made of the ultra-high strength fiber reinforced concrete 4f having high durability is formed, invasion of deterioration factors can be more effectively prevented.SELECTED DRAWING: Figure 5 【課題】劣化因子の侵入をより効果的に防止する。【解決手段】配置工程により、端面1eから継手部材1jが突出した一対のプレキャストコンクリート部材1が継手部材1jのそれぞれが対向するように配置され、間詰形成工程より、一対のプレキャストコンクリート部材1の端面1eの間の空間1sに充填材2fが充填されることにより間詰部2が形成されるプレキャストコンクリート部材の施工方法において、かぶり層形成工程により、一対のプレキャストコンクリート部材1と間詰部2との境界面である端面1eを跨ぐように、一対のプレキャストコンクリート部材1及び間詰部2の上方に、超高強度繊維補強コンクリート4f又は高強度繊維補強モルタルが打設されることによりかぶり層4が形成される。耐久性が高い超高強度繊維補強コンクリート4f等によるかぶり層4が形成されるため、劣化因子の侵入をより効果的に防止することができる。【選択図】図5