Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To provide a reinforcing bar stopper that prevents a reinforcing bar from being lifted by buoyancy of an embedded object and demonstrates excellent strength especially at a portion where reinforcing bars overlap.SOLUTION: On a hook part 10b of a reinforcing bar stopper 10, an upper holding part 10d that extends laterally from a top edge of a shaft part 10a and a lateral pressing part 10e that extends downward from a tip of the upper holding part are formed. Three reinforcing bars R are tucked between inside of a corner part where the shaft part 10a and the upper holding part 10d are connected and a corner part where the upper holding part 10d and the lateral pressing part 10e are connected, the reinforcing bars being in contact with the upper holding part 10d and having a total width V. An inner surface of the two corner parts are formed as an arc having a radius of curvature that equals to or is less than the outermost diameter of the reinforcing bar R, while an internal angle between the axis of shaft part 10a and an undersurface of the upper holding part 10d is almost a right angle. Furthermore, protrusions 10f, 10g for displacement prevention protrudes downward from the undersurface of the upper holding part 10d, the protrusions engaging with recesses on the upper surface of the bound reinforcing bars R.
【課題】埋込体の浮力により鉄筋が持ち上げられることを防ぐ鉄筋ストッパであって、特に鉄筋の重ね継手部分でも優れた強度を発揮する鉄筋ストッパを提供する。【解決手段】鉄筋ストッパ１０のフック部１０ｂには、軸部１０ａの上端から横向きに延びる上抑止部１０ｄと、その先端から下向きに延びる横押圧部１０ｅとが形成され、軸部１０ａと上抑止部１０ｄとが接続する隅角部の内側から、上抑止部１０ｄと横押圧部１０ｅとが接続する隅角部の内側までの間に３本の鉄筋Ｒが上抑止部１０ｄに当接し得るように挟み込まれる幅Ｖが設けられ、前記両隅角部の内面が鉄筋Ｒの最外径以下の曲率半径を有する円弧状をなし、軸部１０ａの軸心と上抑止部１０ｄの下面とのなす内角が略直角となるように形成される。さらに、上抑止部１０ｄの下面には、結束された鉄筋Ｒの上面側の窪みに係合するズレ止め突部１０ｆ、１０ｇが下向きに突設される。【選択図】 図２
PROBLEM TO BE SOLVED: To provide a reinforcing bar stopper that prevents a reinforcing bar from being lifted by buoyancy of an embedded object and demonstrates excellent strength especially at a portion where reinforcing bars overlap.SOLUTION: On a hook part 10b of a reinforcing bar stopper 10, an upper holding part 10d that extends laterally from a top edge of a shaft part 10a and a lateral pressing part 10e that extends downward from a tip of the upper holding part are formed. Three reinforcing bars R are tucked between inside of a corner part where the shaft part 10a and the upper holding part 10d are connected and a corner part where the upper holding part 10d and the lateral pressing part 10e are connected, the reinforcing bars being in contact with the upper holding part 10d and having a total width V. An inner surface of the two corner parts are formed as an arc having a radius of curvature that equals to or is less than the outermost diameter of the reinforcing bar R, while an internal angle between the axis of shaft part 10a and an undersurface of the upper holding part 10d is almost a right angle. Furthermore, protrusions 10f, 10g for displacement prevention protrudes downward from the undersurface of the upper holding part 10d, the protrusions engaging with recesses on the upper surface of the bound reinforcing bars R.
【課題】埋込体の浮力により鉄筋が持ち上げられることを防ぐ鉄筋ストッパであって、特に鉄筋の重ね継手部分でも優れた強度を発揮する鉄筋ストッパを提供する。【解決手段】鉄筋ストッパ１０のフック部１０ｂには、軸部１０ａの上端から横向きに延びる上抑止部１０ｄと、その先端から下向きに延びる横押圧部１０ｅとが形成され、軸部１０ａと上抑止部１０ｄとが接続する隅角部の内側から、上抑止部１０ｄと横押圧部１０ｅとが接続する隅角部の内側までの間に３本の鉄筋Ｒが上抑止部１０ｄに当接し得るように挟み込まれる幅Ｖが設けられ、前記両隅角部の内面が鉄筋Ｒの最外径以下の曲率半径を有する円弧状をなし、軸部１０ａの軸心と上抑止部１０ｄの下面とのなす内角が略直角となるように形成される。さらに、上抑止部１０ｄの下面には、結束された鉄筋Ｒの上面側の窪みに係合するズレ止め突部１０ｆ、１０ｇが下向きに突設される。【選択図】 図２
REINFORCING BAR STOPPER
鉄筋ストッパ
HIRATA MASAHIRO (Autor:in)
10.12.2015
Patent
Elektronische Ressource
Japanisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
Seismic reinforcing structure with damper and stopper
| Europäisches Patentamt | 2022
STOPPER FOR REINFORCING MEMBER AND RETAINING WALL USING THE SAME
| Europäisches Patentamt | 2024