Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
BUCKLING RESTRAINT BRACE
To improve energy absorption capacity before a core material breaking by securing the length of a plasticized part, while avoiding stress concentration at an end part of the plasticized part.SOLUTION: A buckling restraint brace includes a core material and a pipe body. The core material includes a main core material and a sub core material. A connection part of the core material includes a main connection part constituted by an end part of the main core material, and a sub connection part constituted by an end part of the sub core material. The main core material includes a pair of main expanded width part which changes into a plate width larger than the plate width of a plasticized part and is connected to the main connection part. The sub core material includes a sub expanded width part in which the plate width changes to increase toward the sub connection part. A main core material stress concentration position which is a boundary between the main expanded width part and the plasticized part and a sub core material stress concentration position which is the position of an end part on the plasticized part side of the sub expanded width part in the longer direction are set at different positions in such a manner that, in the longer direction, the sub core material stress concentration position is positioned further outward than the main core material stress concentration position, and a separation distance between the main core material stress concentration position and the sub core material stress concentration position is shorter than the plate width of the plasticized part.SELECTED DRAWING: Figure 3
【課題】塑性化部の端部における応力集中を回避しつつ、塑性化部の長さを確保して、芯材の破断までのエネルギー吸収能力を向上させること。【解決手段】座屈拘束ブレースは、芯材と、管体とを備え、芯材は、主芯材と、副芯材とを備え、芯材の接続部は、主芯材の端部で構成される主接続部と、副芯材の端部で構成される副接続部とを備え、主芯材は塑性化部の板幅よりも大きな板幅に変化して主接続部に連続する一対の主拡幅部を備え、副芯材は副接続部に向かい板幅が大きくなるよう板幅が変化する副拡幅部を備え、主拡幅部と塑性化部との境界である主芯材応力集中位置と、副拡幅部の塑性化部側の端部の長手方向における位置である副芯材応力集中位置とが、長手方向で副芯材応力集中位置が主芯材応力集中位置よりも外方に位置するように異なる位置に設定され、かつ、主芯材応力集中位置と副芯材応力集中位置との離間距離が塑性化部の板幅よりも短い。【選択図】図３
BUCKLING RESTRAINT BRACE
To improve energy absorption capacity before a core material breaking by securing the length of a plasticized part, while avoiding stress concentration at an end part of the plasticized part.SOLUTION: A buckling restraint brace includes a core material and a pipe body. The core material includes a main core material and a sub core material. A connection part of the core material includes a main connection part constituted by an end part of the main core material, and a sub connection part constituted by an end part of the sub core material. The main core material includes a pair of main expanded width part which changes into a plate width larger than the plate width of a plasticized part and is connected to the main connection part. The sub core material includes a sub expanded width part in which the plate width changes to increase toward the sub connection part. A main core material stress concentration position which is a boundary between the main expanded width part and the plasticized part and a sub core material stress concentration position which is the position of an end part on the plasticized part side of the sub expanded width part in the longer direction are set at different positions in such a manner that, in the longer direction, the sub core material stress concentration position is positioned further outward than the main core material stress concentration position, and a separation distance between the main core material stress concentration position and the sub core material stress concentration position is shorter than the plate width of the plasticized part.SELECTED DRAWING: Figure 3
【課題】塑性化部の端部における応力集中を回避しつつ、塑性化部の長さを確保して、芯材の破断までのエネルギー吸収能力を向上させること。【解決手段】座屈拘束ブレースは、芯材と、管体とを備え、芯材は、主芯材と、副芯材とを備え、芯材の接続部は、主芯材の端部で構成される主接続部と、副芯材の端部で構成される副接続部とを備え、主芯材は塑性化部の板幅よりも大きな板幅に変化して主接続部に連続する一対の主拡幅部を備え、副芯材は副接続部に向かい板幅が大きくなるよう板幅が変化する副拡幅部を備え、主拡幅部と塑性化部との境界である主芯材応力集中位置と、副拡幅部の塑性化部側の端部の長手方向における位置である副芯材応力集中位置とが、長手方向で副芯材応力集中位置が主芯材応力集中位置よりも外方に位置するように異なる位置に設定され、かつ、主芯材応力集中位置と副芯材応力集中位置との離間距離が塑性化部の板幅よりも短い。【選択図】図３
BUCKLING RESTRAINT BRACE
座屈拘束ブレース
WATANABE ATSUSHI (Autor:in) / WAKITA NAOYA (Autor:in) / NAKAMURA YASUNORI (Autor:in) / KISHIHARA HIROYA (Autor:in) / KAWAMURA NORIHISA (Autor:in) / NAKAMURA HIROSHI (Autor:in)
23.08.2024
Patent
Elektronische Ressource
Japanisch
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