A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONNECTION STRUCTURE BETWEEN INSERT AND PCT PLATE
PROBLEM TO BE SOLVED: To reduce labor in burial work for a bolt box and suppress damaging of concrete.SOLUTION: A precast arch tunnel has PCT plates 3 provided on right and left and connected at an upper center, and the PCT plates 3 are lined up in a tunnel axial direction and connected to each other at respective edge surface 3b. For connecting the PCT plates 3 in the axial direction, a bolt box 8 is formed on the edge surface 3b of the PCT plate 3 on a side, and a bearing plate 11 having a bolt hole 11a is provided. On the edge surface 3b of the PCT plate 3 on the other side, an insert 9 is buried in concrete. The insert 9 has a female screw part 15 for screwing a fastening bolt 12 inside an insert body 16, through the bolt hole 11a. A steel pipe 18 is fitted on an entrance side of the female screw part 15 of the insert body 16 through a tapered pipe 17, and an outer peripheral surface of the steel pipe 18 and the tapered pipe 17 is covered with a cushioning pipe 19 made of styrene foam or the like, for protecting concrete.SELECTED DRAWING: Figure 2
【課題】ボルトボックスの埋設作業の労力を軽減し、コンクリートの破損を抑制できる。【解決手段】プレキャストアーチトンネルは、左右に設けたＰＣＴ版３を上部中央で連結し、トンネル軸線方向にそれぞれＰＣＴ版３を配列して端面３ｂ同士を相互に連結した。ＰＣＴ版３を軸線方向に連結する際、一方のＰＣＴ版３の端面３ｂにボルトボックス８を形成してボルト孔１１ａを有する支圧プレート１１を設けた。他方のＰＣＴ版３の端面３ｂにインサート９をコンクリート内に埋設した。インサート９はインサート本体１６の内部に、ボルト孔１１ａを通して締結ボルト１２を螺合する雌ねじ部１５を設けた。インサート本体１６の雌ねじ部１５の入口側にテーパ管１７を介して鋼管１８を取り付け、鋼管１８とテーパ管１７の外周面を発泡スチロール等の緩衝管１９で覆い、コンクリートを保護する。【選択図】図２
CONNECTION STRUCTURE BETWEEN INSERT AND PCT PLATE
PROBLEM TO BE SOLVED: To reduce labor in burial work for a bolt box and suppress damaging of concrete.SOLUTION: A precast arch tunnel has PCT plates 3 provided on right and left and connected at an upper center, and the PCT plates 3 are lined up in a tunnel axial direction and connected to each other at respective edge surface 3b. For connecting the PCT plates 3 in the axial direction, a bolt box 8 is formed on the edge surface 3b of the PCT plate 3 on a side, and a bearing plate 11 having a bolt hole 11a is provided. On the edge surface 3b of the PCT plate 3 on the other side, an insert 9 is buried in concrete. The insert 9 has a female screw part 15 for screwing a fastening bolt 12 inside an insert body 16, through the bolt hole 11a. A steel pipe 18 is fitted on an entrance side of the female screw part 15 of the insert body 16 through a tapered pipe 17, and an outer peripheral surface of the steel pipe 18 and the tapered pipe 17 is covered with a cushioning pipe 19 made of styrene foam or the like, for protecting concrete.SELECTED DRAWING: Figure 2
【課題】ボルトボックスの埋設作業の労力を軽減し、コンクリートの破損を抑制できる。【解決手段】プレキャストアーチトンネルは、左右に設けたＰＣＴ版３を上部中央で連結し、トンネル軸線方向にそれぞれＰＣＴ版３を配列して端面３ｂ同士を相互に連結した。ＰＣＴ版３を軸線方向に連結する際、一方のＰＣＴ版３の端面３ｂにボルトボックス８を形成してボルト孔１１ａを有する支圧プレート１１を設けた。他方のＰＣＴ版３の端面３ｂにインサート９をコンクリート内に埋設した。インサート９はインサート本体１６の内部に、ボルト孔１１ａを通して締結ボルト１２を螺合する雌ねじ部１５を設けた。インサート本体１６の雌ねじ部１５の入口側にテーパ管１７を介して鋼管１８を取り付け、鋼管１８とテーパ管１７の外周面を発泡スチロール等の緩衝管１９で覆い、コンクリートを保護する。【選択図】図２
CONNECTION STRUCTURE BETWEEN INSERT AND PCT PLATE
インサートとＰＣＴ版の連結構造
NAKAYAMA SOICHIRO (author) / KUNIFUJI TAKASHI (author)
2017-09-28
Patent
Electronic Resource
Japanese
PANEL INSERT-CONNECTION EDGE STRUCTURE AND INSERT-CONNECTION COMPONENT AND ASSEMBLY METHOD
| European Patent Office | 2020