A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EARTHQUAKE-PROOF REINFORCEMENT STRUCTURE
PROBLEM TO BE SOLVED: To realize an earthquake-proof reinforcement structure capable of improving earthquake-proof performance of a rigid-frame structure by restraining construction cost.SOLUTION: An earthquake-proof reinforcement structure 50 hardly causes shear fracture in a column 20 of an overpass 100 by earthquake motion since a clearance 55 is provided so that a third reinforced concrete member 53 provided in the vertical direction along the column 20 of the overpass 100 (a block 100a), does not contact with its column 20. When being brought into close contact since there is no clearance between the third reinforced concrete member 53 and the column 20, it is undesirable in an appearance since the shear fracture is easily caused when the column 20 becomes thick and relatively short. In a case where the clearance 55 is provided between the third reinforced concrete member 53 and the column 20, when absorbing energy of the earthquake motion by rocking the earthquake-proof reinforcement structure 50, swinging energy can be suitably absorbed since rocking is not hindered when the third reinforced concrete member 53 and the column 20 contact.SELECTED DRAWING: Figure 1
【課題】施工コストを抑えてラーメン構造物の耐震性能を向上させることができる耐震補強構造体を実現する。【解決手段】耐震補強構造体５０は、高架橋１００（ブロック１００ａ）の柱２０に沿って垂直方向に設けられた第３鉄筋コンクリート部材５３がその柱２０と接触しないように隙間５５が設けられているので、地震動によって高架橋１００の柱２０が剪断破壊され難くなっている。第３鉄筋コンクリート部材５３と柱２０との間に隙間がなく密接していると、見かけ上、柱２０が太くなり相対的に短くなって剪断破壊が生じ易くなるので好ましくない。また、第３鉄筋コンクリート部材５３と柱２０との間に隙間５５が設けられていれば、耐震補強構造体５０がロッキングして地震動のエネルギーを吸収する場合に、第３鉄筋コンクリート部材５３と柱２０とが接触しロッキングを妨げることがないので、好適に揺れのエネルギーを吸収することができる。【選択図】図１
EARTHQUAKE-PROOF REINFORCEMENT STRUCTURE
PROBLEM TO BE SOLVED: To realize an earthquake-proof reinforcement structure capable of improving earthquake-proof performance of a rigid-frame structure by restraining construction cost.SOLUTION: An earthquake-proof reinforcement structure 50 hardly causes shear fracture in a column 20 of an overpass 100 by earthquake motion since a clearance 55 is provided so that a third reinforced concrete member 53 provided in the vertical direction along the column 20 of the overpass 100 (a block 100a), does not contact with its column 20. When being brought into close contact since there is no clearance between the third reinforced concrete member 53 and the column 20, it is undesirable in an appearance since the shear fracture is easily caused when the column 20 becomes thick and relatively short. In a case where the clearance 55 is provided between the third reinforced concrete member 53 and the column 20, when absorbing energy of the earthquake motion by rocking the earthquake-proof reinforcement structure 50, swinging energy can be suitably absorbed since rocking is not hindered when the third reinforced concrete member 53 and the column 20 contact.SELECTED DRAWING: Figure 1
【課題】施工コストを抑えてラーメン構造物の耐震性能を向上させることができる耐震補強構造体を実現する。【解決手段】耐震補強構造体５０は、高架橋１００（ブロック１００ａ）の柱２０に沿って垂直方向に設けられた第３鉄筋コンクリート部材５３がその柱２０と接触しないように隙間５５が設けられているので、地震動によって高架橋１００の柱２０が剪断破壊され難くなっている。第３鉄筋コンクリート部材５３と柱２０との間に隙間がなく密接していると、見かけ上、柱２０が太くなり相対的に短くなって剪断破壊が生じ易くなるので好ましくない。また、第３鉄筋コンクリート部材５３と柱２０との間に隙間５５が設けられていれば、耐震補強構造体５０がロッキングして地震動のエネルギーを吸収する場合に、第３鉄筋コンクリート部材５３と柱２０とが接触しロッキングを妨げることがないので、好適に揺れのエネルギーを吸収することができる。【選択図】図１
EARTHQUAKE-PROOF REINFORCEMENT STRUCTURE
耐震補強構造体
OSATO TAKAYUKI (author) / KUWAKINO KOSUKE (author) / NOZAWA SHINICHIRO (author) / ITO MICHINORI (author) / ISHIBASHI TADAYOSHI (author)
2017-06-15
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2023