A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BUILDING HAVING LOW RIGIDITY LAYER
To provide a building having the same function as a base-isolated building, and that can be constructed relatively inexpensively.SOLUTION: A building 1 includes a sub structure 2, an upper structure 3, a low rigidity layer 4 arranged between the sub structure 2 and the upper structure 3, and a vibration control device 5. Columns of the low rigidity layer 4 are formed of low rigidity columns 10 having lower flexural rigidity than upper columns 7 of the upper structure 3. A lower beam 6 provided at an upper end of the sub structure 2, an upper beam 8 provided at a lower end of the upper structure 3, and the low rigidity columns 10 form a rigid frame structure 12. The vibration control device 5 is installed to the rigid frame structure 12. Although the rigid frame structure 12 deforms at an earthquake due to the low flexural rigidity of the low rigidity columns 10, excessive deformation is prevented by the vibration control device 5. A non-damage vibration region where the rigid frame structure 12 causes elastic vibration becomes remarkably large by the low rigidity columns 10, whereby the low rigidity layer 4 exerts the function equal to a base isolation layer.SELECTED DRAWING: Figure 1
【課題】免震建物と同様の機能を有し、比較的安価に構築できる建物を提供する。【解決手段】建物１は、下部構造体２と、上部構造体３と、下部構造体２及び前記上部構造体３の間に配置された低剛性層４と、制振装置５とを含む。低剛性層４の柱は、上部構造体３の上部柱７よりも曲げ剛性の低い低剛性柱１０からなる。下部構造体２の上端に設けられた下部梁６と、上部構造体３の下端に設けられた上部梁８と、低剛性柱１０とがラーメン構造１２を構成する。ラーメン構造１２に制振装置５が設置される。低剛性柱１０の曲げ剛性が低いため地震時にラーメン構造１２は変形するが、過大な変形は制振装置５によって防止される。低剛性柱１０によってラーメン構造１２の弾性振動する無損傷振動領域が著しく大きくなるため、低剛性層４が免震層と同様の機能を発揮する。【選択図】図１
BUILDING HAVING LOW RIGIDITY LAYER
To provide a building having the same function as a base-isolated building, and that can be constructed relatively inexpensively.SOLUTION: A building 1 includes a sub structure 2, an upper structure 3, a low rigidity layer 4 arranged between the sub structure 2 and the upper structure 3, and a vibration control device 5. Columns of the low rigidity layer 4 are formed of low rigidity columns 10 having lower flexural rigidity than upper columns 7 of the upper structure 3. A lower beam 6 provided at an upper end of the sub structure 2, an upper beam 8 provided at a lower end of the upper structure 3, and the low rigidity columns 10 form a rigid frame structure 12. The vibration control device 5 is installed to the rigid frame structure 12. Although the rigid frame structure 12 deforms at an earthquake due to the low flexural rigidity of the low rigidity columns 10, excessive deformation is prevented by the vibration control device 5. A non-damage vibration region where the rigid frame structure 12 causes elastic vibration becomes remarkably large by the low rigidity columns 10, whereby the low rigidity layer 4 exerts the function equal to a base isolation layer.SELECTED DRAWING: Figure 1
【課題】免震建物と同様の機能を有し、比較的安価に構築できる建物を提供する。【解決手段】建物１は、下部構造体２と、上部構造体３と、下部構造体２及び前記上部構造体３の間に配置された低剛性層４と、制振装置５とを含む。低剛性層４の柱は、上部構造体３の上部柱７よりも曲げ剛性の低い低剛性柱１０からなる。下部構造体２の上端に設けられた下部梁６と、上部構造体３の下端に設けられた上部梁８と、低剛性柱１０とがラーメン構造１２を構成する。ラーメン構造１２に制振装置５が設置される。低剛性柱１０の曲げ剛性が低いため地震時にラーメン構造１２は変形するが、過大な変形は制振装置５によって防止される。低剛性柱１０によってラーメン構造１２の弾性振動する無損傷振動領域が著しく大きくなるため、低剛性層４が免震層と同様の機能を発揮する。【選択図】図１
BUILDING HAVING LOW RIGIDITY LAYER
低剛性層を備える建物
TANO KENJI (author) / MATSUNAGA KENTARO (author) / HIRATA YUICHI (author) / HARADA HIROYUKI (author)
2022-08-26
Patent
Electronic Resource
Japanese
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