A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SEISMIC ISOLATION METHOD FOR EXISTING BUILDINGS
PROBLEM TO BE SOLVED: To provide a method for seismic isolation of existing buildings which can shorten the construction period considerably while keeping the shrinkage amount of each column in the entire building after the seismic isolation construction within a predetermined range.SOLUTION: In the inner column of the existing building, an inner column seismic isolation process with a preload method is executed, which comprises a column cutting process in which the seismic isolation installation target portion of the column is cut off and removed, a seismic isolation device installation process in which the seismic isolation device is installed in the cutting and removing portion of the column, a preload introduction process of introducing a preload corresponding to the axial force of the column to the seismic isolation device, and a preload connection part fixing process of fixing the connection part between the seismic isolation device and the column in a state where the preload is introduced to the seismic isolation device. In the column of the outer peripheral portion of the existing building, an outer peripheral column seismic isolation process with a non-preload method is executed, which comprises a column cutting process in which the seismic isolation installation target portion of the column is cut off and removed, a seismic isolation device installation process in which the seismic isolation device is installed in the cutting and removing portion of the column, and a non-preload connection part fixing process of fixing the connecting portion between the seismic isolation device and the column in a state where the preload is not introduced to the seismic isolation device.SELECTED DRAWING: Figure 4
【課題】建物全体における各柱の免震化工事後の縮み量を所定範囲内に抑えながら、大幅な工期の短縮を図ることが可能な既存建物の免震化工法を提供する。【解決手段】既存建物の内部の柱においては、柱の免震設置対象部位を切断除去する柱切除工程と、柱の切断除去部位に免震装置を設置する免震装置設置工程と、免震装置に柱の軸力に相当するプレロードを導入するプレロード導入工程と、免震装置にプレロードを導入した状態で当該免震装置と柱との接続部を固定するプレロード用接続部固定工程と、を備えたプレロード工法による内部柱免震化工程を実施し、既存建物の外周部の柱においては、柱の免震設置対象部位を切断除去する柱切除工程と、柱の切断除去部位に免震装置を設置する免震装置設置工程と、免震装置にプレロードを導入しない状態で当該免震装置と柱との接続部を固定する非プレロード用接続部固定工程と、を備えた非プレロード工法による外周柱免震化工程を実施する。【選択図】図４
SEISMIC ISOLATION METHOD FOR EXISTING BUILDINGS
PROBLEM TO BE SOLVED: To provide a method for seismic isolation of existing buildings which can shorten the construction period considerably while keeping the shrinkage amount of each column in the entire building after the seismic isolation construction within a predetermined range.SOLUTION: In the inner column of the existing building, an inner column seismic isolation process with a preload method is executed, which comprises a column cutting process in which the seismic isolation installation target portion of the column is cut off and removed, a seismic isolation device installation process in which the seismic isolation device is installed in the cutting and removing portion of the column, a preload introduction process of introducing a preload corresponding to the axial force of the column to the seismic isolation device, and a preload connection part fixing process of fixing the connection part between the seismic isolation device and the column in a state where the preload is introduced to the seismic isolation device. In the column of the outer peripheral portion of the existing building, an outer peripheral column seismic isolation process with a non-preload method is executed, which comprises a column cutting process in which the seismic isolation installation target portion of the column is cut off and removed, a seismic isolation device installation process in which the seismic isolation device is installed in the cutting and removing portion of the column, and a non-preload connection part fixing process of fixing the connecting portion between the seismic isolation device and the column in a state where the preload is not introduced to the seismic isolation device.SELECTED DRAWING: Figure 4
【課題】建物全体における各柱の免震化工事後の縮み量を所定範囲内に抑えながら、大幅な工期の短縮を図ることが可能な既存建物の免震化工法を提供する。【解決手段】既存建物の内部の柱においては、柱の免震設置対象部位を切断除去する柱切除工程と、柱の切断除去部位に免震装置を設置する免震装置設置工程と、免震装置に柱の軸力に相当するプレロードを導入するプレロード導入工程と、免震装置にプレロードを導入した状態で当該免震装置と柱との接続部を固定するプレロード用接続部固定工程と、を備えたプレロード工法による内部柱免震化工程を実施し、既存建物の外周部の柱においては、柱の免震設置対象部位を切断除去する柱切除工程と、柱の切断除去部位に免震装置を設置する免震装置設置工程と、免震装置にプレロードを導入しない状態で当該免震装置と柱との接続部を固定する非プレロード用接続部固定工程と、を備えた非プレロード工法による外周柱免震化工程を実施する。【選択図】図４
SEISMIC ISOLATION METHOD FOR EXISTING BUILDINGS
既存建物の免震化工法
ARITAKE TAKESHI (author) / YAMASHITA YOSHIYUKI (author) / YAMAMOTO AKIHISA (author)
2018-08-23
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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