A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REINFORCING STRUCTURE, REINFORCING MEMBER, AND REINFORCING METHOD
To provide a reinforcing member of a steel member capable of preventing dead load at joints of steel members from increasing, and facilitating reinforcement.SOLUTION: A reinforcing structure 100 in an embodiment comprises a cross-sectional I-shaped steel girder 5 having a flange 51 and a vertical stiffener 54 to be joined to the flange 51, and a reinforcing member 1 for reinforcing the cross-sectional I-shaped steel girder 5. The reinforcing member 1 has an FRP plate material 2 in which a plurality of unidirectional fiber sheets is laminated. The FRP plate material 2 is formed with a pair of attached portions 23 formed on both sides of the vertical stiffener 54 and attached to the flange 51, and a bypass portion 24 for connecting the pair of attached portions 23 by bypassing the vertical stiffener 54. A fiber orientation in the FRP plate material 2 has a main direction from one attachment portion 23a to the other attachment portion 23b and at least two directions different from the main direction.SELECTED DRAWING: Figure 8
【課題】鋼部材の接合箇所において死荷重の増加を抑制でき、補強を容易に行うことが可能となる鋼部材の補強部材を提供する。【解決手段】実施形態における補強構造１００は、フランジ５１と、フランジ５１に接合される垂直補剛材５４と、を有する断面Ｉ型鋼桁５と、断面Ｉ型鋼桁５を補強するための補強部材１と、を備える。補強部材１は、一方向繊維シートが複数積層されるＦＲＰ板材２を有する。ＦＲＰ板材２は、垂直補剛材５４を挟んで両側に形成されるとともにフランジ５１に貼り付けられる一対の貼り付け部２３と、垂直補剛材５４を迂回して一対の貼り付け部２３を繋ぐバイパス部２４と、が形成される。ＦＲＰ板材２における繊維配向は、一方の貼り付け部２３ａから他方の貼り付け部２３ｂに向かう主方向と、主方向と異なる少なくとも２つの方向と、を有する。【選択図】図８
REINFORCING STRUCTURE, REINFORCING MEMBER, AND REINFORCING METHOD
To provide a reinforcing member of a steel member capable of preventing dead load at joints of steel members from increasing, and facilitating reinforcement.SOLUTION: A reinforcing structure 100 in an embodiment comprises a cross-sectional I-shaped steel girder 5 having a flange 51 and a vertical stiffener 54 to be joined to the flange 51, and a reinforcing member 1 for reinforcing the cross-sectional I-shaped steel girder 5. The reinforcing member 1 has an FRP plate material 2 in which a plurality of unidirectional fiber sheets is laminated. The FRP plate material 2 is formed with a pair of attached portions 23 formed on both sides of the vertical stiffener 54 and attached to the flange 51, and a bypass portion 24 for connecting the pair of attached portions 23 by bypassing the vertical stiffener 54. A fiber orientation in the FRP plate material 2 has a main direction from one attachment portion 23a to the other attachment portion 23b and at least two directions different from the main direction.SELECTED DRAWING: Figure 8
【課題】鋼部材の接合箇所において死荷重の増加を抑制でき、補強を容易に行うことが可能となる鋼部材の補強部材を提供する。【解決手段】実施形態における補強構造１００は、フランジ５１と、フランジ５１に接合される垂直補剛材５４と、を有する断面Ｉ型鋼桁５と、断面Ｉ型鋼桁５を補強するための補強部材１と、を備える。補強部材１は、一方向繊維シートが複数積層されるＦＲＰ板材２を有する。ＦＲＰ板材２は、垂直補剛材５４を挟んで両側に形成されるとともにフランジ５１に貼り付けられる一対の貼り付け部２３と、垂直補剛材５４を迂回して一対の貼り付け部２３を繋ぐバイパス部２４と、が形成される。ＦＲＰ板材２における繊維配向は、一方の貼り付け部２３ａから他方の貼り付け部２３ｂに向かう主方向と、主方向と異なる少なくとも２つの方向と、を有する。【選択図】図８
REINFORCING STRUCTURE, REINFORCING MEMBER, AND REINFORCING METHOD
補強構造、補強部材及び補強方法
SAKURAI SHUNTA (author) / HIDEKUMA YUYA (author)
2023-05-16
Patent
Electronic Resource
Japanese
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