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A platform for research: civil engineering, architecture and urbanism
REPAIR METHOD AND REPAIR STRUCTURE FOR BRIDGE FALLING PREVENTION DEVICE
PROBLEM TO BE SOLVED: To provide simple repair method and repair structure for a bridge falling prevention device.SOLUTION: An existing bridge falling prevention device includes an existing side surface plate 101A fitted on both side surfaces of a bridge girder structure 100, an existing bottom surface plate 101B provided on a bottom surface of the bridge girder structure, an existing bolt material 104 penetrating through the existing side surface plate 101A and the bridge girder structure 100, and double nut materials 102, 103 screwed at both ends of the existing bolt material 104. When repairing the bridge falling prevention device, the existing bottom surface plate 101A and the double nut materials 102, 103 are removed first. Then, a new side surface plate 1 is disposed along the existing side surface plate 101A and a new nut material 6 is screwed on both ends of the existing bolt material 104, the new side surface plate having an extension part 1A extending downward of a bottom edge of the existing side surface plate 101A. Furthermore, a new bottom surface plate 2 is disposed along a bottom surface of the bridge girder structure 100, the new bottom surface plate having an extension part 2A extending downward on both side edge parts. The extension part 1A of the new side surface plate 1 and the extension part 2A of the new bottom surface plate 2 are joined.SELECTED DRAWING: Figure 1
【課題】簡易な落橋防止装置の補修方法及び補修構造を提供する。【解決手段】既設の落橋防止装置は、橋桁構造物１００の両側面に備え付けられている既設側面板１０１Ａと、下面に備え付けられている既設下面板１０１Ｂと、既設側面板１０１Ａ及び橋桁構造物１００を貫通する既設ボルト材１０４と、既設ボルト材１０４の両端部に螺合されている二重ナット材１０２，１０３とを有する。補修するにあたっては、まず、既設下面板１０１Ａ及び二重ナット材１０２，１０３を撤去する。次に、既設側面板１０１Ａの下端縁よりも下方へ延在する延在部１Ａを有する新設側面板１を、既設側面板１０１Ａに沿って配置し、新設ナット材６を既設ボルト材１０４の両端部に螺合する。そして、両側端部に下方へ延在する延在部２Ａを有する新設下面板２を、橋桁構造物１００の下面に沿って配置し、新設側面板１の延在部１Ａと新設下面板２の延在部２Ａとを接合する。【選択図】図１
REPAIR METHOD AND REPAIR STRUCTURE FOR BRIDGE FALLING PREVENTION DEVICE
PROBLEM TO BE SOLVED: To provide simple repair method and repair structure for a bridge falling prevention device.SOLUTION: An existing bridge falling prevention device includes an existing side surface plate 101A fitted on both side surfaces of a bridge girder structure 100, an existing bottom surface plate 101B provided on a bottom surface of the bridge girder structure, an existing bolt material 104 penetrating through the existing side surface plate 101A and the bridge girder structure 100, and double nut materials 102, 103 screwed at both ends of the existing bolt material 104. When repairing the bridge falling prevention device, the existing bottom surface plate 101A and the double nut materials 102, 103 are removed first. Then, a new side surface plate 1 is disposed along the existing side surface plate 101A and a new nut material 6 is screwed on both ends of the existing bolt material 104, the new side surface plate having an extension part 1A extending downward of a bottom edge of the existing side surface plate 101A. Furthermore, a new bottom surface plate 2 is disposed along a bottom surface of the bridge girder structure 100, the new bottom surface plate having an extension part 2A extending downward on both side edge parts. The extension part 1A of the new side surface plate 1 and the extension part 2A of the new bottom surface plate 2 are joined.SELECTED DRAWING: Figure 1
【課題】簡易な落橋防止装置の補修方法及び補修構造を提供する。【解決手段】既設の落橋防止装置は、橋桁構造物１００の両側面に備え付けられている既設側面板１０１Ａと、下面に備え付けられている既設下面板１０１Ｂと、既設側面板１０１Ａ及び橋桁構造物１００を貫通する既設ボルト材１０４と、既設ボルト材１０４の両端部に螺合されている二重ナット材１０２，１０３とを有する。補修するにあたっては、まず、既設下面板１０１Ａ及び二重ナット材１０２，１０３を撤去する。次に、既設側面板１０１Ａの下端縁よりも下方へ延在する延在部１Ａを有する新設側面板１を、既設側面板１０１Ａに沿って配置し、新設ナット材６を既設ボルト材１０４の両端部に螺合する。そして、両側端部に下方へ延在する延在部２Ａを有する新設下面板２を、橋桁構造物１００の下面に沿って配置し、新設側面板１の延在部１Ａと新設下面板２の延在部２Ａとを接合する。【選択図】図１
REPAIR METHOD AND REPAIR STRUCTURE FOR BRIDGE FALLING PREVENTION DEVICE
落橋防止装置の補修方法及び補修構造
KURACHI TOKIO (author)
2017-11-02
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken