A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To allow easy attachment and detachment to and from a body frame side of a covering formwork and prevent a gap from forming in a connecting part between the covering formwork and a body frame, for a slab opening formwork for forming openings vertically penetrating a floor on an inner peripheral surface side of the body frame and the covering formwork by placing concrete to the formwork on a slab reinforcing bar side.SOLUTION: The slab opening formwork comprises: a main body frame 3 having an opening in the upper and lower directions; a supporting reinforcing bar 4 for supporting the main body frame 3 on the side of a slab reinforcing bar 8; and a covering formwork 7 detachably provided on the upper side or the lower side of the main body frame 3; and an opening part 2 vertically penetrating a floor formed by placing concrete into a formwork on the side of the slab reinforcing bar 8, the covering thickness of the opening part 2 formed by the covering formwork 7. A lower end side of the covering formwork 7 is positioned lower than an upper end side of the main body frame 3, alternatively, the upper end side of the covering formwork 7 is positioned higher than the lower end side of the main body frame 3.SELECTED DRAWING: Figure 4
【課題】スラブ鉄筋側の型枠へのコンクリートの打設によって本体枠及び被り用型枠の内周面側に床を上下に貫通する開口部を形成するスラブ開口用型枠において、前記被り用型枠の本体枠側への着脱が容易であるとともに、被り用型枠と本体枠との連結部分に隙間が出来難いスラブ開口用型枠を提供することを課題としている。【解決手段】上下が開口した本体枠３と、本体枠３をスラブ鉄筋８側に支持する支持鉄筋４と、該本体枠３の上側又は下側に着脱可能に設けた被り用型枠７とを備え、スラブ鉄筋８側の型枠へのコンクリートの打設によって床を上下に貫通する開口部２を形成し、該開口部２の被り厚が前記被り用型枠７によって形成されるスラブ開口用型枠において、前記被り用型枠７の下端側は、前記本体枠３の上端側よりも下方に位置するように構成され、或いは、前記被り用型枠７の上端側は、前記本体枠３の下端側よりも上方に位置するように構成された。【選択図】図４
To allow easy attachment and detachment to and from a body frame side of a covering formwork and prevent a gap from forming in a connecting part between the covering formwork and a body frame, for a slab opening formwork for forming openings vertically penetrating a floor on an inner peripheral surface side of the body frame and the covering formwork by placing concrete to the formwork on a slab reinforcing bar side.SOLUTION: The slab opening formwork comprises: a main body frame 3 having an opening in the upper and lower directions; a supporting reinforcing bar 4 for supporting the main body frame 3 on the side of a slab reinforcing bar 8; and a covering formwork 7 detachably provided on the upper side or the lower side of the main body frame 3; and an opening part 2 vertically penetrating a floor formed by placing concrete into a formwork on the side of the slab reinforcing bar 8, the covering thickness of the opening part 2 formed by the covering formwork 7. A lower end side of the covering formwork 7 is positioned lower than an upper end side of the main body frame 3, alternatively, the upper end side of the covering formwork 7 is positioned higher than the lower end side of the main body frame 3.SELECTED DRAWING: Figure 4
【課題】スラブ鉄筋側の型枠へのコンクリートの打設によって本体枠及び被り用型枠の内周面側に床を上下に貫通する開口部を形成するスラブ開口用型枠において、前記被り用型枠の本体枠側への着脱が容易であるとともに、被り用型枠と本体枠との連結部分に隙間が出来難いスラブ開口用型枠を提供することを課題としている。【解決手段】上下が開口した本体枠３と、本体枠３をスラブ鉄筋８側に支持する支持鉄筋４と、該本体枠３の上側又は下側に着脱可能に設けた被り用型枠７とを備え、スラブ鉄筋８側の型枠へのコンクリートの打設によって床を上下に貫通する開口部２を形成し、該開口部２の被り厚が前記被り用型枠７によって形成されるスラブ開口用型枠において、前記被り用型枠７の下端側は、前記本体枠３の上端側よりも下方に位置するように構成され、或いは、前記被り用型枠７の上端側は、前記本体枠３の下端側よりも上方に位置するように構成された。【選択図】図４
SLAB OPENING FORMWORK
スラブ開口用型枠
ONO TAKUJI (author)
2018-12-20
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
VOID FORMWORK, PANEL WITH VOID FORMWORK, AND CONCRETE SLAB
| European Patent Office | 2023