A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BASE ISOLATION REPAIR METHOD
PROBLEM TO BE SOLVED: To provide a base isolation repair method capable of reliably introducing a preload and further reliably removing the introduced preload while easily holding the preload for a long period.SOLUTION: A base isolation repair method includes: installing a base isolation device 20 on an existing pole 10. Further, the base isolation repair method comprises: steps S1-S4 of installing the base isolation device 20 so that a space is formed between the existing pole 10 and base isolation device 20; steps S5-S7 of gradually pressing tapered plates 63A, 63B in between an upper skeleton 10B and the upper surface of the base isolation device 20 by a pair of hydraulic jacks 65 by receiving reaction force by a PC steel rod 64 so as to introduce axial force into the base isolation device 20; a step S8 of maintaining the introduced axial force by fixing positions of the tapered plates 63A, 63B; and steps S9, S10 of casting concrete between the upper skeleton 10B and the upper surface of the base isolation device 20.SELECTED DRAWING: Figure 3
【課題】プレロードを確実に導入して、さらに長期間に亘って容易にプレロードを保持しつつ、導入したプレロードを確実に除荷できる免震改修方法を提供すること。【解決手段】免震改修方法は、既存柱１０に免震装置２０を設置する。既存柱１０と免震装置２０との間に空間が形成されるように免震装置２０を設置するステップＳ１〜Ｓ４と、上部躯体１０Ｂと免震装置２０の上面との間で、一対の油圧ジャッキ６５により、ＰＣ鋼棒６４に反力をとってテーパプレート６３Ａ、６３Ｂを徐々に押し込むことで、免震装置２０に軸力を導入するステップＳ５〜Ｓ７と、テーパプレート６３Ａ、６３Ｂの位置を固定することで、導入した軸力を維持するステップＳ８と、上部躯体１０Ｂと免震装置２０の上面との間にコンクリートを打設するステップＳ９、Ｓ１０と、を備える。【選択図】図３
BASE ISOLATION REPAIR METHOD
PROBLEM TO BE SOLVED: To provide a base isolation repair method capable of reliably introducing a preload and further reliably removing the introduced preload while easily holding the preload for a long period.SOLUTION: A base isolation repair method includes: installing a base isolation device 20 on an existing pole 10. Further, the base isolation repair method comprises: steps S1-S4 of installing the base isolation device 20 so that a space is formed between the existing pole 10 and base isolation device 20; steps S5-S7 of gradually pressing tapered plates 63A, 63B in between an upper skeleton 10B and the upper surface of the base isolation device 20 by a pair of hydraulic jacks 65 by receiving reaction force by a PC steel rod 64 so as to introduce axial force into the base isolation device 20; a step S8 of maintaining the introduced axial force by fixing positions of the tapered plates 63A, 63B; and steps S9, S10 of casting concrete between the upper skeleton 10B and the upper surface of the base isolation device 20.SELECTED DRAWING: Figure 3
【課題】プレロードを確実に導入して、さらに長期間に亘って容易にプレロードを保持しつつ、導入したプレロードを確実に除荷できる免震改修方法を提供すること。【解決手段】免震改修方法は、既存柱１０に免震装置２０を設置する。既存柱１０と免震装置２０との間に空間が形成されるように免震装置２０を設置するステップＳ１〜Ｓ４と、上部躯体１０Ｂと免震装置２０の上面との間で、一対の油圧ジャッキ６５により、ＰＣ鋼棒６４に反力をとってテーパプレート６３Ａ、６３Ｂを徐々に押し込むことで、免震装置２０に軸力を導入するステップＳ５〜Ｓ７と、テーパプレート６３Ａ、６３Ｂの位置を固定することで、導入した軸力を維持するステップＳ８と、上部躯体１０Ｂと免震装置２０の上面との間にコンクリートを打設するステップＳ９、Ｓ１０と、を備える。【選択図】図３
BASE ISOLATION REPAIR METHOD
免震改修方法
ISHIDA TOSHIHISA (author) / NAGANO KIREI (author) / KONDO MUTSUMI (author)
2016-09-05
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
BASE ISOLATION REPAIR METHOD AND BASE ISOLATION STRUCTURE
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