A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GIRDER REINFORCEMENT STRUCTURE
PROBLEM TO BE SOLVED: To provide a girder reinforcement structure for appropriately reinforcing an existing girder.SOLUTION: A truss structure 50 is spanned between bridge piers 1 along a main girder 2, the truss structure including a plurality of long members 10 having an intermediate horizontal girder 5 pierced therethrough, and a plurality of short members 20 spanned between the plurality of long members 10. As a result, the main girder 2 may be reinforced by utilizing the truss structure 50 as a splint (a support) for the main girder 2. Especially, a characteristic period of the main girder 2 may be shortened by enhancing rigidity of the main girder 2, by installing the truss structure 50 as the reinforcement. As such, for example, resonance of the main girder 2 may be suppressed that is caused by a passing train, in a case a railroad track has been installed on the main girder 2.SELECTED DRAWING: Figure 1
【課題】既設の桁を好適に補強することができる桁の補強構造を実現する。【解決手段】中間横桁５を貫通させた複数の長尺部材１０と、複数の長尺部材１０間に架設された複数の短尺部材２０とを備えたトラス構造体５０が、主桁２に沿うように橋脚１の間に架け渡されているので、そのトラス構造体５０を主桁２の副木（添え木）にするようにして、主桁２を補強することができる。特に、トラス構造体５０を設置した補強によって主桁２の剛性を向上させて、その主桁２の固有周期を短くすることができるので、例えば、主桁２上に鉄道用の軌道が敷設されている場合、その軌道を列車が走行することに伴う主桁２の共振を抑制することができる。【選択図】図１
GIRDER REINFORCEMENT STRUCTURE
PROBLEM TO BE SOLVED: To provide a girder reinforcement structure for appropriately reinforcing an existing girder.SOLUTION: A truss structure 50 is spanned between bridge piers 1 along a main girder 2, the truss structure including a plurality of long members 10 having an intermediate horizontal girder 5 pierced therethrough, and a plurality of short members 20 spanned between the plurality of long members 10. As a result, the main girder 2 may be reinforced by utilizing the truss structure 50 as a splint (a support) for the main girder 2. Especially, a characteristic period of the main girder 2 may be shortened by enhancing rigidity of the main girder 2, by installing the truss structure 50 as the reinforcement. As such, for example, resonance of the main girder 2 may be suppressed that is caused by a passing train, in a case a railroad track has been installed on the main girder 2.SELECTED DRAWING: Figure 1
【課題】既設の桁を好適に補強することができる桁の補強構造を実現する。【解決手段】中間横桁５を貫通させた複数の長尺部材１０と、複数の長尺部材１０間に架設された複数の短尺部材２０とを備えたトラス構造体５０が、主桁２に沿うように橋脚１の間に架け渡されているので、そのトラス構造体５０を主桁２の副木（添え木）にするようにして、主桁２を補強することができる。特に、トラス構造体５０を設置した補強によって主桁２の剛性を向上させて、その主桁２の固有周期を短くすることができるので、例えば、主桁２上に鉄道用の軌道が敷設されている場合、その軌道を列車が走行することに伴う主桁２の共振を抑制することができる。【選択図】図１
GIRDER REINFORCEMENT STRUCTURE
桁の補強構造
KOBAYASHI KAORU (author) / ITO HAYATO (author)
2017-12-07
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
Steel girder formwork structure and reinforcement structure of steel girder parent part
| European Patent Office | 2019