A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a seismic base isolation device capable of preventing shaking of a building structure, even at a time of great earthquake.SOLUTION: A top edge side of a main column is fixed on a member constituting a skeleton of a building structure, and a top edge side of a base-isolation column is fitted at a top part of the main column with a universal joint in between, and furthermore a lower edge side of the base-isolation column is fitted at a top edge side of a foundation structure with the universal joint in between. At normal times, the building structure is connected and fixed to the main column, and is erected on the foundation structure with the base-isolation column in between. When a great earthquake strikes, the universal joints at the top and bottom of the base-isolation column cause only the lower edge side of the base-isolation column to shake largely in a lateral direction inside the main column, thereby cancelling shaking of the foundation structure side without transmitting the shake to the building structure. A compression spring absorbs and mitigates vertical shakes, the compression spring being interposed between a strike plate at the top edge of the base-isolation column and the top part of the main column.SELECTED DRAWING: Figure 1
【課題】巨大地震が発生したときであっても、建築構造物の揺れを防止することのできる免振装置を提供することを目的とする。【解決手段】建築構造物の骨組みを構成する部材に親柱の上端側を固定し、該親柱内の上部に自在継手を介して免振柱の上端側を取り付け、免振柱の下端側を自在継手を介して基礎構造物の上端側に連結している。平穏時には建築構造物は、親柱に連結固定されており、免振柱を介して基礎構造物上に構築されている。巨大地震等が発生すると、免振柱の上下の自在継手により、親柱の中で免振柱の下端側のみが左右に大きく揺れ、基礎構造物側の揺れを解消してこれを建築構造物に対して伝達することがない。また縦揺れに対しては、免振柱上端の受座と親柱上部との間に介装した圧縮バネがこれを吸収緩和する。【選択図】図１
PROBLEM TO BE SOLVED: To provide a seismic base isolation device capable of preventing shaking of a building structure, even at a time of great earthquake.SOLUTION: A top edge side of a main column is fixed on a member constituting a skeleton of a building structure, and a top edge side of a base-isolation column is fitted at a top part of the main column with a universal joint in between, and furthermore a lower edge side of the base-isolation column is fitted at a top edge side of a foundation structure with the universal joint in between. At normal times, the building structure is connected and fixed to the main column, and is erected on the foundation structure with the base-isolation column in between. When a great earthquake strikes, the universal joints at the top and bottom of the base-isolation column cause only the lower edge side of the base-isolation column to shake largely in a lateral direction inside the main column, thereby cancelling shaking of the foundation structure side without transmitting the shake to the building structure. A compression spring absorbs and mitigates vertical shakes, the compression spring being interposed between a strike plate at the top edge of the base-isolation column and the top part of the main column.SELECTED DRAWING: Figure 1
【課題】巨大地震が発生したときであっても、建築構造物の揺れを防止することのできる免振装置を提供することを目的とする。【解決手段】建築構造物の骨組みを構成する部材に親柱の上端側を固定し、該親柱内の上部に自在継手を介して免振柱の上端側を取り付け、免振柱の下端側を自在継手を介して基礎構造物の上端側に連結している。平穏時には建築構造物は、親柱に連結固定されており、免振柱を介して基礎構造物上に構築されている。巨大地震等が発生すると、免振柱の上下の自在継手により、親柱の中で免振柱の下端側のみが左右に大きく揺れ、基礎構造物側の揺れを解消してこれを建築構造物に対して伝達することがない。また縦揺れに対しては、免振柱上端の受座と親柱上部との間に介装した圧縮バネがこれを吸収緩和する。【選択図】図１
SEISMIC BASE ISOLATION DEVICE
免振装置
NAKAI KIYOTO (author)
2016-05-23
Patent
Electronic Resource
Japanese