A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
JOINT STRUCTURE OF CONCRETE PRECAST FLOOR SLAB FOR BRIDGE
PROBLEM TO BE SOLVED: To provide a joint structure of a concrete precast floor slab for a bridge for further improving durability and water cutoff performance of a joint part, by restraining damage caused by a flexure-load in a connection part of the concrete precast floor slab for the bridge, by easily connecting and replacing the concrete precast floor slab for the bridge.SOLUTION: A joint structure of a PPC slab 1 for the bridge comprises a C-shaped joint metal fitting 2 installed in a side end part 1a in the bridge axial direction L and fitted to an H-shaped joint metal fitting, a recessed part 3 recessed on a side end surface 1s in the bridge axial direction L and a reinforcement member 4 for installing a base end part on an inner surface of the recessed part 3 and projecting a tip part in the bridge axial direction L from the inner surface of the recessed part 3, and when connecting the mutual adjacent PPC slabs 1 and 1 for the bridge, a joint space is formed by mutually opposing the mutual recessed parts 3 respectively formed on the PPC slabs 1 and 1 for the bridge, and a grout material is filled in a state of burying a tip part of the reinforcement member 4 in the joint space.
【課題】橋梁用コンクリートプレキャスト床版の連結や取替を簡便に実現し、橋梁用コンクリートプレキャスト床版の連結部分での曲げ・荷重等に起因した破損を抑制し、さらに、目地部の耐久性及び止水性を向上させた橋梁用コンクリートプレキャスト床版の目地構造を提供する。【解決手段】橋軸方向Ｌの側端部１ａに取り付けられてＨ型継手金具に嵌合されるＣ型継手金具２と、橋軸方向Ｌの側端面１ｓに凹設される凹部３と、凹部３内面に基端部を取り付けられると共に凹部３内面から先端部を橋軸方向Ｌに突出した補強部材４と、を備え、隣り合う橋梁用ＰＰＣ版１、１同士を連結する際に、橋梁用ＰＰＣ版１、１に夫々形成された凹部３同士を互いに対面させて目地空間を形成し、前記目地空間内に補強部材４の先端部分を埋没した状態でグラウト材を充填する橋梁用ＰＰＣ版１の目地構造。【選択図】図１
JOINT STRUCTURE OF CONCRETE PRECAST FLOOR SLAB FOR BRIDGE
PROBLEM TO BE SOLVED: To provide a joint structure of a concrete precast floor slab for a bridge for further improving durability and water cutoff performance of a joint part, by restraining damage caused by a flexure-load in a connection part of the concrete precast floor slab for the bridge, by easily connecting and replacing the concrete precast floor slab for the bridge.SOLUTION: A joint structure of a PPC slab 1 for the bridge comprises a C-shaped joint metal fitting 2 installed in a side end part 1a in the bridge axial direction L and fitted to an H-shaped joint metal fitting, a recessed part 3 recessed on a side end surface 1s in the bridge axial direction L and a reinforcement member 4 for installing a base end part on an inner surface of the recessed part 3 and projecting a tip part in the bridge axial direction L from the inner surface of the recessed part 3, and when connecting the mutual adjacent PPC slabs 1 and 1 for the bridge, a joint space is formed by mutually opposing the mutual recessed parts 3 respectively formed on the PPC slabs 1 and 1 for the bridge, and a grout material is filled in a state of burying a tip part of the reinforcement member 4 in the joint space.
【課題】橋梁用コンクリートプレキャスト床版の連結や取替を簡便に実現し、橋梁用コンクリートプレキャスト床版の連結部分での曲げ・荷重等に起因した破損を抑制し、さらに、目地部の耐久性及び止水性を向上させた橋梁用コンクリートプレキャスト床版の目地構造を提供する。【解決手段】橋軸方向Ｌの側端部１ａに取り付けられてＨ型継手金具に嵌合されるＣ型継手金具２と、橋軸方向Ｌの側端面１ｓに凹設される凹部３と、凹部３内面に基端部を取り付けられると共に凹部３内面から先端部を橋軸方向Ｌに突出した補強部材４と、を備え、隣り合う橋梁用ＰＰＣ版１、１同士を連結する際に、橋梁用ＰＰＣ版１、１に夫々形成された凹部３同士を互いに対面させて目地空間を形成し、前記目地空間内に補強部材４の先端部分を埋没した状態でグラウト材を充填する橋梁用ＰＰＣ版１の目地構造。【選択図】図１
JOINT STRUCTURE OF CONCRETE PRECAST FLOOR SLAB FOR BRIDGE
橋梁用コンクリートプレキャスト床版の目地構造
SHOJI AKIO (author) / OTANI SATOSHI (author) / NIITANI NORIJI (author) / HARA KENGO (author) / ITO AKIHIKO (author) / ASAMI KYOSUKE (author) / MORITA EIJI (author) / TERADA MICHIYASU (author) / WATANABE TERUYASU (author) / SHINOHARA IWAO (author)
2015-06-04
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
PRECAST FLOOR SLAB JOINT STRUCTURE AND PRECAST FLOOR SLAB
| European Patent Office | 2021