A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a base-isolation method of an existing building which can prevent the settlement and shaking of the existing building, when removing part of an existing foundation and installing a base-isolation device.SOLUTION: A base-isolation method of an existing building includes: steps S1-S4 of installing a hydraulic jack 77 on a lower surface of a foundation beam 21 of an existing building 1, taking a reaction force to the foundation beam 21 by the hydraulic jack 77, and press-fitting a steel pipe pile 70 in the ground 2 immediately under the foundation beam 21; a step S5 of supporting the foundation beam 21 of the existing building 1 by the steel pipe pile 70, and connecting the steel pipe pile 70 and the foundation beam 21 with a connection material 73; steps S6-S8 of removing a footing 20 and constructing a lower part base-isolation foundation 40, and installing a base-isolation device 30 on the lower part base-isolation foundation 40; and steps S9, S10 of constructing an upper part base-isolation foundation 50 between the base-isolation device 30 and the foundation beam 21 of the existing building 1, and removing the connection material 73.SELECTED DRAWING: Figure 7
【課題】既存基礎の一部を撤去して免震装置を設置する際に、既存建物の沈下や揺れを防止できる、既存建物の免震化方法を提供すること。【解決手段】既存建物の免震化方法は、既存建物１の基礎梁２１の下面に油圧ジャッキ７７を設置して、油圧ジャッキ７７で基礎梁２１に反力をとって、基礎梁２１の直下の地盤２内に鋼管杭７０を圧入するステップＳ１～Ｓ４と、鋼管杭７０で既存建物１の基礎梁２１を支持するとともに、鋼管杭７０と基礎梁２１とを連結材７３で連結するステップＳ５と、フーチング２０を撤去して下部免震基礎４０を構築し、下部免震基礎４０の上に免震装置３０を設置するステップＳ６～Ｓ８と、免震装置３０と既存建物１の基礎梁２１との間に上部免震基礎５０を構築し、連結材７３を撤去するステップＳ９、Ｓ１０と、を含む。【選択図】図７
To provide a base-isolation method of an existing building which can prevent the settlement and shaking of the existing building, when removing part of an existing foundation and installing a base-isolation device.SOLUTION: A base-isolation method of an existing building includes: steps S1-S4 of installing a hydraulic jack 77 on a lower surface of a foundation beam 21 of an existing building 1, taking a reaction force to the foundation beam 21 by the hydraulic jack 77, and press-fitting a steel pipe pile 70 in the ground 2 immediately under the foundation beam 21; a step S5 of supporting the foundation beam 21 of the existing building 1 by the steel pipe pile 70, and connecting the steel pipe pile 70 and the foundation beam 21 with a connection material 73; steps S6-S8 of removing a footing 20 and constructing a lower part base-isolation foundation 40, and installing a base-isolation device 30 on the lower part base-isolation foundation 40; and steps S9, S10 of constructing an upper part base-isolation foundation 50 between the base-isolation device 30 and the foundation beam 21 of the existing building 1, and removing the connection material 73.SELECTED DRAWING: Figure 7
【課題】既存基礎の一部を撤去して免震装置を設置する際に、既存建物の沈下や揺れを防止できる、既存建物の免震化方法を提供すること。【解決手段】既存建物の免震化方法は、既存建物１の基礎梁２１の下面に油圧ジャッキ７７を設置して、油圧ジャッキ７７で基礎梁２１に反力をとって、基礎梁２１の直下の地盤２内に鋼管杭７０を圧入するステップＳ１～Ｓ４と、鋼管杭７０で既存建物１の基礎梁２１を支持するとともに、鋼管杭７０と基礎梁２１とを連結材７３で連結するステップＳ５と、フーチング２０を撤去して下部免震基礎４０を構築し、下部免震基礎４０の上に免震装置３０を設置するステップＳ６～Ｓ８と、免震装置３０と既存建物１の基礎梁２１との間に上部免震基礎５０を構築し、連結材７３を撤去するステップＳ９、Ｓ１０と、を含む。【選択図】図７
BASE-ISOLATION METHOD OF EXISTING BUILDING
既存建物の免震化方法
2023-06-05
Patent
Electronic Resource
Japanese
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