JP5967642B2 - Building reinforcement structure - Google Patents

Building reinforcement structure Download PDF

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JP5967642B2
JP5967642B2 JP2012072724A JP2012072724A JP5967642B2 JP 5967642 B2 JP5967642 B2 JP 5967642B2 JP 2012072724 A JP2012072724 A JP 2012072724A JP 2012072724 A JP2012072724 A JP 2012072724A JP 5967642 B2 JP5967642 B2 JP 5967642B2
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雄一 真崎
雄一 真崎
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株式会社グレイプ
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本発明は、建物の補強構造に係り、特に、地震や強風などの水平力に対する建物の強度・剛性を高めるための補強構造に関するものである。   The present invention relates to a reinforcing structure for a building, and more particularly to a reinforcing structure for increasing the strength and rigidity of a building against horizontal forces such as earthquakes and strong winds.

従来、建物の耐震補強構造として、既存建物の柱を補強する構造が提案されている(例えば、特許文献1参照)。この補強構造は、内側が収納空間とされている複数の箱状体で柱の外周部を全周に亘って囲み、各箱状体を構成する背面の板材を柱の柱側面に対向させるとともに、それらの箱状体同士を互いに一体に連結し、背面の板材と柱側面との間に未硬化の硬化性材料を充填して互いに密接させ、箱状体における天板材の板面と梁の下面との隙間、及び、箱状体における底板材の板面と床面との隙間の各々にも未硬化の硬化性材料を充填して互いに密接させて構成されている。   Conventionally, as a seismic reinforcement structure for a building, a structure for reinforcing a pillar of an existing building has been proposed (see, for example, Patent Document 1). This reinforcing structure surrounds the outer periphery of the column over the entire circumference with a plurality of box-shaped bodies whose insides are storage spaces, and makes the plate material on the back constituting each box-shaped body face the column side of the column. The box-like bodies are connected together, filled with uncured curable material between the back plate and the column side, and brought into close contact with each other. Each of the gap between the lower surface and the gap between the plate surface and the floor surface of the bottom plate member in the box-like body is also filled with uncured curable material and brought into close contact with each other.

特開2009−197552号公報JP 2009-197552 A

しかしながら、特許文献1に記載された従来の補強構造のように、箱状体の板材と、柱側面や梁の下面、床面との間にモルタル等の充填材を充填し、この充填材を介して建物躯体に箱状体を接触させるだけでは、十分な補強効果が期待できない。即ち、地震等によって建物躯体(柱や梁)が損傷を受ける場合には、建物や各部材に大きな変形角が生じるため、この変形に補強材が追従しつつ応力を負担する必要があるにもかかわらず、従来の補強構造では、充填材を介して箱状体が設けられているにすぎないため、充填材が割れたり剥落したりすることで建物躯体と箱状体との一体性が損なわれる。このため、箱状体が建物躯体の変形に追従することができず、応力を負担できないことになり、大地震に対する補強効果を期待することができない。   However, like the conventional reinforcing structure described in Patent Document 1, a filling material such as mortar is filled between the box-shaped plate material and the column side surface, the lower surface of the beam, and the floor surface. A sufficient reinforcing effect cannot be expected simply by bringing the box-shaped body into contact with the building frame. That is, when a building frame (column or beam) is damaged by an earthquake or the like, a large deformation angle is generated in the building and each member. Therefore, it is necessary to bear the stress while the reinforcing material follows this deformation. Regardless, in the conventional reinforcing structure, only the box-shaped body is provided via the filler, and the integrity of the building frame and the box-shaped body is impaired by the filler being cracked or peeled off. It is. For this reason, the box-shaped body cannot follow the deformation of the building frame and cannot bear the stress, so that a reinforcing effect against a large earthquake cannot be expected.

また、従来の補強構造では、床面から梁下までの高さ寸法を有する一体の箱状体によって柱の全周を囲むことから、建物の階高(梁下の高さ)や柱の寸法に応じて箱状体を製作しなければならず、箱状体の共通化が困難となってコストが増加してしまう。さらに、独立した1本の柱に対しては、その全周を囲んで箱状体を設置することができるものの、壁付きの柱や、建具が取り付けられた柱などのように、柱の側方全周にスペースがない場合には箱状体を設置することができず、補強構造を適用することができる建物が限定されてしまうこととなる。また、一体に製作した箱状体を建物内部に設置しなければならないことから、その運搬や建物への搬入、設置などの各種作業に手間がかかり、補強工事の作業性が著しく低下してしまうという問題もある。   Moreover, in the conventional reinforcement structure, the entire circumference of the column is surrounded by an integral box-like body having a height dimension from the floor to the bottom of the beam, so the floor height of the building (the height under the beam) and the dimensions of the column Accordingly, a box-shaped body must be manufactured, which makes it difficult to share the box-shaped body and increases the cost. Furthermore, for an independent column, a box-like body can be installed around the entire circumference, but the column side, such as a column with a wall or a column to which a fitting is attached, can be installed. If there is no space all around the box, the box-shaped body cannot be installed, and the buildings to which the reinforcing structure can be applied are limited. In addition, since the box-shaped body manufactured in one piece must be installed inside the building, it takes time and effort to carry it, carry it into the building, install it, and so on, and the workability of the reinforcement work is significantly reduced. There is also a problem.

したがって、本発明は、簡便かつ低コストで施工可能で各種の建物に適用可能であるとともに、十分な補強効果を実現することができる建物の補強構造を提供することを目的とする。   Accordingly, an object of the present invention is to provide a reinforcing structure for a building that can be constructed easily and at low cost, can be applied to various buildings, and can realize a sufficient reinforcing effect.

上記目的を達成するために請求項1に記載の建物の補強構造は、互いに接合された鉛直部材及び水平部材を有した建物の補強構造であって、前記鉛直部材が鉄骨製の柱であり、前記水平部材が鉄骨製の梁であり、該柱と該梁とが接合部を介して剛接されてラーメン架構を構成し、前記鉛直部材に沿って上下に積層される複数の補強部材と、前記複数の補強部材のうちの少なくとも一部を前記鉛直部材に固定する第一固定手段と、前記上下に積層される補強部材同士を互いに固定する第二固定手段と、前記水平部材の直下に位置する前記補強部材を該水平部材に固定する第三固定手段と、を備え、前記補強部材は、前記鉛直部材の側面に沿う第一側面部と、該第一側面部の上端縁に連続して前記鉛直部材から離れる方向に延びる上面部と、前記第一側面部の下端縁に連続して前記鉛直部材から離れる方向に延びる下面部と、前記上面部及び前記下面部の端縁同士を連結して前記第一側面部と平行に延びる第二側面部と、を有して全体矩形中空状に形成された鋼製部材であり、前記第一側面部と前記鉛直部材とが前記第一固定手段であるボルト−ナット接合、線溶接、あるいはスタッド接合によって直接固定され、前記複数の補強部材は、前記鉛直部材の略全長に沿って上下に積層されており、前記水平部材の直上に位置する前記補強部材を該水平部材に固定する第四固定手段、及び、基礎又は床スラブの直上に位置する前記補強部材を該基礎又は床スラブに固定する第五固定手段、の少なくとも一方を備えて構成され、上下に積層された前記複数の補強部材のうち、下側に位置する前記水平部材、前記基礎又は前記床スラブから上側に位置する前記水平部材までの高さにおける下側から過半の高さ範囲に位置する複数の補強部材は、それらの前記第二側面部に他の補強部材が固定されず前記鉛直部材の反対側が開放されていることを特徴とする。 In order to achieve the above object, the building reinforcing structure according to claim 1 is a building reinforcing structure having a vertical member and a horizontal member joined to each other, and the vertical member is a steel column. The horizontal member is a steel beam, the pillar and the beam are rigidly connected via a joint portion to form a rigid frame, and a plurality of reinforcing members stacked vertically along the vertical member; A first fixing means for fixing at least a part of the plurality of reinforcing members to the vertical member, a second fixing means for fixing the reinforcing members stacked on the top and bottom to each other, and a position directly below the horizontal member And a third fixing means for fixing the reinforcing member to the horizontal member, the reinforcing member being continuous with the first side surface portion along the side surface of the vertical member and the upper edge of the first side surface portion. An upper surface portion extending in a direction away from the vertical member; A lower surface portion extending in a direction away from the vertical member continuously from a lower end edge of one side surface portion, and a second side surface portion extending in parallel with the first side surface portion by connecting the upper surface portion and the edges of the lower surface portion. And a steel member formed in an overall rectangular hollow shape , wherein the first side surface portion and the vertical member are the first fixing means by bolt-nut joining, wire welding, or stud joining. A fourth fixing means that is fixed directly, and the plurality of reinforcing members are stacked vertically along substantially the entire length of the vertical member, and the reinforcing member positioned immediately above the horizontal member is fixed to the horizontal member; And among the plurality of reinforcing members that are configured to include at least one of the fifth fixing means that fixes the reinforcing member positioned directly above the foundation or the floor slab to the foundation or the floor slab, Before positioned below A plurality of reinforcing members located in a height range from the lower side to the upper side of the horizontal member, the foundation or the floor slab to the horizontal member located on the upper side, are provided with other reinforcements on the second side surface thereof. The member is not fixed and the opposite side of the vertical member is opened .

ここで、本発明の補強構造を適用する建物としては、その用途(住宅、店舗、商業ビル、工場、倉庫など)や、規模(建築面積、容積、階数など)、構造種別(木造、鉄骨造、鉄筋コンクリート造など)、構造形式(軸組構造、ラーメン構造、壁式構造など)は、いずれも限定されず、各種の建物に対して本発明の補強構造を適用することができる。また、本発明において、鉛直部材とは、柱や壁等の鉛直方向に延びて設けられる部材を意味し、水平部材とは、梁や床、基礎等の水平方向に延びて設けられる部材を意味するが、ここでの鉛直方向や水平方向としては、多少の傾きを有した方向をも含むものである。   Here, as a building to which the reinforcing structure of the present invention is applied, its use (house, store, commercial building, factory, warehouse, etc.), scale (building area, volume, number of floors, etc.), structural type (wooden, steel structure) , Reinforced concrete structure, etc.) and structural type (frame structure, ramen structure, wall structure, etc.) are not limited, and the reinforcing structure of the present invention can be applied to various buildings. In the present invention, the vertical member means a member that extends in the vertical direction such as a column or a wall, and the horizontal member means a member that extends in the horizontal direction such as a beam, floor, or foundation. However, the vertical direction and the horizontal direction here include directions having a slight inclination.

請求項に記載の建物の補強構造は、請求項1に記載された建物の補強構造において、前記複数の補強部材は、前記上面部、前記下面部、前記第一及び第二の側面部の各内面に四周が固定される内部パネルを有した第一タイプのものと、前記内部パネルを有しない第二タイプのものと、を備えて構成されることを特徴とする。 The building reinforcing structure according to claim 2 is the building reinforcing structure according to claim 1 , wherein the plurality of reinforcing members are the upper surface portion, the lower surface portion, and the first and second side surface portions. It is characterized by comprising a first type having an inner panel in which four sides are fixed to each inner surface, and a second type having no inner panel.

請求項に記載の建物の補強構造は、請求項に記載された建物の補強構造において、前記第一タイプの補強部材は、前記鉛直部材と前記水平部材とが接合される接合部の近傍に設けられ、前記第二タイプの補強部材は、前記接合部から離隔された位置に設けられていることを特徴とする。 The building reinforcing structure according to claim 3 is the building reinforcing structure according to claim 2 , wherein the first type reinforcing member is in the vicinity of a joint where the vertical member and the horizontal member are joined. The second type reinforcing member is provided at a position separated from the joint portion.

請求項に記載の建物の補強構造は、請求項又はに記載された建物の補強構造において、前記内部パネルは、所定のせん断力により塑性化して履歴エネルギー吸収を行う減衰材料から構成されることを特徴とする。 The building reinforcing structure according to claim 4 is the building reinforcing structure according to claim 2 or 3 , wherein the inner panel is made of a damping material that plasticizes by a predetermined shear force and absorbs hysteresis energy. It is characterized by that.

請求項に記載の建物の補強構造は、請求項1〜のいずれか一項に記載された建物の補強構造において、前記複数の補強部材は、前記上面部及び前記下面部の幅寸法と前記第一及び第二の側面部の高さ寸法とが略同一の正方形タイプのものと、前記上面部及び前記下面部の幅寸法と前記第一及び第二の側面部の高さ寸法とが異なる長方形タイプのものと、を備えて構成されることを特徴とする。 The building reinforcing structure according to claim 5 is the building reinforcing structure according to any one of claims 1 to 4 , wherein the plurality of reinforcing members include width dimensions of the upper surface portion and the lower surface portion. A square type having substantially the same height dimension of the first and second side surface parts, a width dimension of the upper surface part and the lower surface part, and a height dimension of the first and second side surface parts. It is characterized by comprising different rectangular types.

請求項に記載の建物の補強構造は、請求項1〜のいずれか一項に記載された建物の補強構造において、前記鉛直部材に沿う前記補強部材を挟んで該鉛直部材の反対側に隣接して設けられる一又は複数の隣接補強部材をさらに備え、前記隣接補強部材は、前記補強部材と共通の全体矩形中空状に形成されていることを特徴とする。 The building reinforcing structure according to claim 6 is the building reinforcing structure according to any one of claims 1 to 5 , wherein the reinforcing member along the vertical member is sandwiched between the reinforcing members on the opposite side of the vertical member. One or a plurality of adjacent reinforcing members provided adjacent to each other are further provided, and the adjacent reinforcing members are formed in an overall rectangular hollow shape common to the reinforcing members.

請求項に記載の建物の補強構造は、請求項に記載された建物の補強構造において、前記隣接補強部材は、複数段かつ複数列に配列されるとともに、前記鉛直部材に沿う前記補強部材から離れた列ほど段数が減じられた複数で構成されており、上下左右に隣り合う前記隣接補強部材同士、及び隣り合う前記補強部材と前記隣接補強部材とが、前記第二固定手段によって互いに固定され、前記水平部材の直下に位置する前記隣接補強部材と該水平部材とが前記第三固定手段によって固定されていることを特徴とする。 The building reinforcing structure according to claim 7 is the building reinforcing structure according to claim 6 , wherein the adjacent reinforcing members are arranged in a plurality of stages and in a plurality of rows, and the reinforcing members along the vertical member The adjacent reinforcing members adjacent to each other vertically and horizontally, and the adjacent reinforcing member and the adjacent reinforcing member are fixed to each other by the second fixing means. The adjacent reinforcing member located immediately below the horizontal member and the horizontal member are fixed by the third fixing means.

請求項1に記載された発明によれば、鉛直部材に沿って複数の補強部材を上下に積層するとともに、第一固定手段によって補強部材を鉛直部材に固定するとともに、第二固定手段によって上下の補強部材同士を互いに固定し、第三固定手段によって補強部材を水平部材の下側に固定することで、各補強部材と鉛直部材及び水平部材とを確実に固定し、かつ補強部材同士も確実に固定することができ、積層した複数の補強部材と鉛直部材及び水平部材との一体性を高めることができる。従って、地震等によって変形した鉛直部材及び水平部材に複数の補強部材を追従させ、補強部材に応力を負担させることができ、十分な補強効果を得ることができる。また、複数の補強部材を上下に積層することで、個々の補強部材のサイズを小型化するとともに、モジュール化により形状や寸法を共通化することができる。従って、階高や構造形式、構造種別が異なる各種の建物に対して、共通の補強部材を用いることができ、製作コストや設置コストを抑制することができる。   According to the first aspect of the invention, the plurality of reinforcing members are stacked vertically along the vertical member, the reinforcing member is fixed to the vertical member by the first fixing means, and the upper and lower members are fixed by the second fixing means. By fixing the reinforcing members to each other and fixing the reinforcing member to the lower side of the horizontal member by the third fixing means, each reinforcing member, the vertical member and the horizontal member are securely fixed, and the reinforcing members are also securely connected. It can fix and can improve the integrity of the laminated | stacked several reinforcement member, a vertical member, and a horizontal member. Therefore, a plurality of reinforcing members can follow the vertical member and the horizontal member deformed by an earthquake or the like, and stress can be applied to the reinforcing member, so that a sufficient reinforcing effect can be obtained. Further, by laminating a plurality of reinforcing members vertically, the size of each reinforcing member can be reduced, and the shape and dimensions can be made common by modularization. Therefore, a common reinforcing member can be used for various buildings having different floor heights, structural types, and structural types, and manufacturing costs and installation costs can be suppressed.

さらに、補強部材が第一側面部と上面部と下面部と第二側面部とを有して全体矩形中空状に形成されているので、補強部材自体を軽量化することができるとともに、積み重ねて搬送したり適宜な個数ずつを建物に搬入したり各補強部材を作業者が設置したりなど、搬送や搬入、設置の作業を容易に実施することができる。また、鉛直部材に第一側面部を対向させ、水平部材に上面部を対向させ、補強部材同士は互いの上面部と下面部とを対向させるとともに、中空部を利用して固定作業が実施できることで、第一〜第三の固定手段の固定作業を容易に行うことができ、設置作業の作業性をさらに向上させることができる。また、補強部材は、鉛直部材の全周を囲んで設置する必要がなく、鉛直部材の一の側面に沿って積層してもよいし、二以上の側面に沿って積層してもよく、いずれの場合にも前述の通り補強効果を得ることができることから、設置の自由度を高めることができ、様々な周辺条件の鉛直部材に対して柔軟な補強構造を実現することができる。   Furthermore, since the reinforcing member has a first side surface portion, an upper surface portion, a lower surface portion, and a second side surface portion and is formed in a generally rectangular hollow shape, the reinforcing member itself can be reduced in weight and stacked. It is possible to easily carry out operations such as carrying, carrying in, and setting, such as carrying, carrying an appropriate number of pieces into the building, or installing each reinforcing member by an operator. In addition, the first side surface portion is opposed to the vertical member, the upper surface portion is opposed to the horizontal member, and the reinforcing members can be fixed to each other with the upper surface portion and the lower surface portion opposed to each other and using the hollow portion. Thus, the fixing work of the first to third fixing means can be easily performed, and the workability of the installation work can be further improved. In addition, the reinforcing member does not need to be installed around the entire circumference of the vertical member, and may be stacked along one side surface of the vertical member, or may be stacked along two or more side surfaces. Also in this case, since the reinforcing effect can be obtained as described above, the degree of freedom of installation can be increased, and a flexible reinforcing structure can be realized for the vertical member under various peripheral conditions.

また、鉛直部材の略全長に沿って補強部材を上下に積層して設置することで、鉛直部材に対する補強効果をさらに高めることができる。そして、第四固定手段によって水平部材の上側に補強部材を固定するか、又は、第五固定手段によって基礎又は床スラブに補強部材を固定することで、建物躯体との一体性をさらに向上させることができる。また、鉛直部材の略全長に沿って補強部材が積層されているので、地震等によって万一鉛直部材が破断したり、鉛直部材と水平部材との接合が外れたりした場合であっても、上側の水平部材や床スラブの荷重を補強部材で支持することができ、層崩壊を防止することができる。 Moreover , the reinforcement effect with respect to a vertical member can further be heightened by installing a reinforcement member up and down along the substantially full length of a vertical member. Then, by fixing the reinforcing member on the upper side of the horizontal member by the fourth fixing means, or by fixing the reinforcing member to the foundation or the floor slab by the fifth fixing means, further improving the integrity with the building frame. Can do. In addition, since the reinforcing member is laminated along substantially the entire length of the vertical member, even if the vertical member breaks due to an earthquake or the like, and the vertical member and the horizontal member are disconnected, the upper side The horizontal member and the load of the floor slab can be supported by the reinforcing member, and the layer collapse can be prevented.

請求項に記載された発明によれば、内部パネルを有した第一タイプの補強部材と、内部パネルを有しない第二タイプの補強部材と、を備えることで、これら第一及び第二のタイプを適宜に使い分けて効率よく補強することができ、コストを抑制しつつ補強効果を高めることができる。 According to the invention described in claim 2 , the first-type reinforcing member having the inner panel and the second-type reinforcing member not having the inner panel are provided. It is possible to reinforce efficiently by properly using the types, and it is possible to enhance the reinforcing effect while suppressing the cost.

請求項に記載された発明によれば、鉛直部材と水平部材との接合部近傍に第一タイプの補強部材を用い、接合部から離隔された位置には第二タイプの補強部材を用いることで、地震時において変形や応力が大きく作用する接合部の応力を第一タイプの補強部材に負担させることができ、補強効果をより一層向上させることができる。一方、変形や応力がさほど大きくない接合部から離れた部位には第二タイプの補強部材を用いることで、設置コストを抑制させることができる。 According to the invention described in claim 3 , the first type reinforcing member is used in the vicinity of the joint portion between the vertical member and the horizontal member, and the second type reinforcing member is used at a position separated from the joint portion. Thus, it is possible to load the first-type reinforcing member with the stress of the joint where deformation and stress act greatly during an earthquake, and the reinforcing effect can be further improved. On the other hand, installation cost can be suppressed by using a 2nd type reinforcement member in the site | part away from the junction part which a deformation | transformation and stress are not so large.

請求項に記載された発明によれば、減衰材料から内部パネルを構成し、この内部パネルを所定のせん断力により塑性化させて履歴エネルギー吸収を行わせることで、建物全体のエネルギー吸収性能を高めることができる。ここで、減衰材料としては、一般的な建築構造用鋼材と比較して降伏強度が低くかつ延性(変形性能)に優れた極軟鋼等のダンパー用鋼材や、組織の再結晶化力を有した鉛などの金属材料、粘性体や粘弾性体など、各種の素材が利用可能である。 According to the invention described in claim 4 , the internal panel is made of the damping material, and the internal panel is plasticized by a predetermined shearing force to absorb the hysteresis energy, thereby improving the energy absorption performance of the entire building. Can be increased. Here, as a damping material, it had a low yield strength and excellent ductility (deformation performance) steel material for dampers such as ultra-soft steel and recrystallization power of the structure as compared with general steel materials for building structures. Various materials such as metal materials such as lead, viscous bodies and viscoelastic bodies can be used.

請求項に記載された発明によれば、正方形タイプの補強部材と、幅寸法と高さ寸法とが異なる長方形タイプの補強部材と、を備えることで、建物の階高や水平部材の高さ位置などに応じて適宜に両タイプの補強部材を混合して用いることで、様々な建物に対しても共通化した補強部材を適用することができる。具体的には、正方形タイプの補強部材を汎用部材として複数準備しておき、階高等によって半端な寸法となる位置に長方形タイプの補強部材を用いるようにすれば、正方形タイプの補強部材の製作コストを削減しつつ、様々な設置条件に柔軟に対応することができる。 According to the invention described in claim 5 , by providing a square type reinforcing member and a rectangular type reinforcing member having different width and height dimensions, the floor height of the building and the height of the horizontal member are provided. By using a mixture of both types of reinforcing members as appropriate according to the position and the like, it is possible to apply a reinforcing member that is common to various buildings. Specifically, if a plurality of square type reinforcing members are prepared as general-purpose members and rectangular type reinforcing members are used at positions where they are half-sized due to floor height etc., the production cost of the square type reinforcing members will be increased. Can be flexibly adapted to various installation conditions.

請求項に記載された発明によれば、隣接補強部材を補強部材に隣り合わせて設置することで、補強効果をさらに高めることができる。また、隣接補強部材が補強部材と共通の全体矩形中空状に形成されているので、補強部材に並設して隣接補強部材を設置する際の固定作業を容易に実施することができる。 According to the invention described in claim 6 , the reinforcing effect can be further enhanced by installing the adjacent reinforcing member adjacent to the reinforcing member. Moreover, since the adjacent reinforcing member is formed in an overall rectangular hollow shape common to the reinforcing member, it is possible to easily perform a fixing operation when the adjacent reinforcing member is installed side by side with the reinforcing member.

請求項に記載された発明によれば、隣接補強部材が複数段かつ複数列に配列され、補強部材から離れた列ほど段数が減じられた複数で構成されているので、鉛直部材から離れる側に傾斜したハンチ状に隣接補強部材を配列することができる。そして、前述と同じ第二固定手段によって隣り合う隣接補強部材同士、及び隣り合う補強部材と隣接補強部材とを固定するとともに、前述と同じ第三固定手段によって水平部材の下側に隣接補強部材を固定することで、固定構造を共通化できるとともに、これらの補強部材を鉛直部材及び水平部材に一体化することができる。従って、上下に積層した補強部材とハンチ状の隣接補強部材とを介して鉛直部材と水平部材とが連結されることとなり、これらの鉛直部材と水平部材とに亘って応力を伝達することができるので、補強効果をさらに一層向上させることができる。 According to the seventh aspect of the present invention, the adjacent reinforcing members are arranged in a plurality of steps and in a plurality of rows, and the number of steps is reduced as the row is further away from the reinforcing member. Adjacent reinforcing members can be arranged in the shape of a haunch that is inclined in the direction of. Then, the adjacent reinforcing members adjacent to each other and the adjacent reinforcing members and the adjacent reinforcing members are fixed by the same second fixing means as described above, and the adjacent reinforcing members are disposed below the horizontal member by the same third fixing means as described above. By fixing, the fixing structure can be made common, and these reinforcing members can be integrated with the vertical member and the horizontal member. Therefore, the vertical member and the horizontal member are connected via the reinforcing member stacked vertically and the adjacent reinforcing member in the shape of a haunch, and stress can be transmitted between the vertical member and the horizontal member. Therefore, the reinforcing effect can be further improved.

本発明の一実施形態に係る補強構造を用いた建物を示す軸組図である。It is a shaft assembly figure showing a building using a reinforcement structure concerning one embodiment of the present invention. 前記建物の骨組みの一部及び前記補強構造を示す側面図である。It is a side view which shows a part of framework of the said building, and the said reinforcement structure. 前記補強構造を拡大して示す側面図及び断面図である。It is the side view and sectional drawing which expand and show the said reinforcement structure. 前記補強構造の下部を示す断面図である。It is sectional drawing which shows the lower part of the said reinforcement structure. 前記補強構造に用いる補強部材を示す断面図である。It is sectional drawing which shows the reinforcement member used for the said reinforcement structure. 前記補強部材のうち第一タイプの補強部材を示す斜視図である。It is a perspective view which shows the 1st type reinforcement member among the said reinforcement members. 前記補強部材のうち第二タイプの補強部材を示す斜視図である。It is a perspective view which shows the 2nd type reinforcement member among the said reinforcement members. 前記補強構造の変形例を示す側面図である。It is a side view which shows the modification of the said reinforcement structure. 前記補強構造の他の変形例を示す側面図である。It is a side view which shows the other modification of the said reinforcement structure.

以下、本発明の一実施形態に係る建物の補強構造を、図1〜図7に基づいて説明する。本実施形態の補強構造を適用した建物1は、例えば、鉄骨造の倉庫や事務所ビル等の既存建物であって、2階建て(一部中2階)の建物本体2とコンクリート製の基礎3とを有して構成されるものである。この建物1は、図1に示すように、張間方向(図の左右方向)が純ラーメン構造とされ、これと直交する桁行方向は、図示しない複数の鉛直ブレースを備えたブレース構造とされている。本実施形態では、張間方向のラーメンを構成する鉛直部材としての柱4及び水平部材としての梁5の耐力が不足していたり、柱4と梁5とが接合される接合部6の接合強度が不足していたりする場合において、張間方向に作用する地震力や風圧力等に対する水平耐力を補うための補強構造10を例示する。   Hereinafter, the building reinforcement structure which concerns on one Embodiment of this invention is demonstrated based on FIGS. The building 1 to which the reinforcing structure of the present embodiment is applied is an existing building such as a steel warehouse or an office building, for example, a two-story building body 2 and a concrete foundation. 3. As shown in FIG. 1, the building 1 has a pure ramen structure in the span direction (left and right direction in the figure), and a bracing structure having a plurality of vertical braces (not shown) in the crossing direction perpendicular thereto. Yes. In this embodiment, the proof strength of the column 4 as the vertical member and the beam 5 as the horizontal member constituting the frame in the span direction is insufficient, or the joint strength of the joint 6 where the column 4 and the beam 5 are joined. For example, the reinforcing structure 10 for supplementing the horizontal strength against seismic force and wind pressure acting in the spanning direction when there is a shortage of wind is illustrated.

図2〜4に示すように、基礎3は、地表面GLから立ち上がる立上部3Aと、この立上部3Aの側面に沿って増し打ちされた増打部3Bと、を有して形成されている。柱4は、一対のフランジ4Aとウェブ4Bとを有したH形鋼からなり、その強軸を張間方向に向けて設けられるとともに、柱脚が立上部3Aに根巻きされて図示しないアンカーボルト等を介して基礎3に固定されている。梁5は、一対のフランジ5A,5Bとウェブ5Cとを有したH形鋼からなり、柱4のフランジ4Aに溶接固定されたガセットプレート4Cを介して柱4にボルト接合されている。接合部6は、柱4のフランジ4A間と梁5のフランジ5A,5B間とで上下左右を囲まれた矩形状の領域であり、この接合部6には、桁行方向の梁7が接合されている。また、柱4には、接合部6の上下及び基礎3の上方に適宜な枚数のスチフナプレート4Dがフランジ4Aとウェブ4Bとに亘って溶接固定され、梁5には、接合部6の左右に適宜な枚数のスチフナプレート5Dがフランジ5A,5Bとウェブ5Cとに亘って溶接固定されている。なお、本実施形態では説明を省略するが、梁5の上側には、デッキプレートが載置され、このデッキプレートの上面に所定厚さを有したコンクリート製の床スラブが設けられている。   As shown in FIGS. 2 to 4, the foundation 3 is formed to have a raised portion 3 </ b> A that rises from the ground surface GL and an increased hitting portion 3 </ b> B that is increased along the side surface of the raised portion 3 </ b> A. . The column 4 is made of an H-shaped steel having a pair of flanges 4A and a web 4B, and is provided with its strong axis directed in the spanning direction, and a column base is wound around the upright portion 3A, and an anchor bolt (not shown) It is being fixed to foundation 3 via etc. The beam 5 is made of H-shaped steel having a pair of flanges 5A and 5B and a web 5C, and is bolted to the column 4 via a gusset plate 4C welded and fixed to the flange 4A of the column 4. The joint portion 6 is a rectangular region surrounded by the upper and lower sides and the right and left sides between the flange 4A of the column 4 and between the flanges 5A and 5B of the beam 5. The beam 7 in the column direction is joined to the joint portion 6. ing. Further, an appropriate number of stiffener plates 4D are welded and fixed across the flange 4A and the web 4B on the top and bottom of the joint 6 and above the foundation 3 on the column 4, and on the left and right of the joint 6 on the beam 5. An appropriate number of stiffener plates 5D are fixed by welding over the flanges 5A and 5B and the web 5C. Although not described in the present embodiment, a deck plate is placed on the upper side of the beam 5, and a concrete floor slab having a predetermined thickness is provided on the upper surface of the deck plate.

補強構造10は、柱4のフランジ4Aに沿って上下に積層される複数の補強部材11、12を備えて構成されている。補強部材11は、幅、高さ及び奥行きの各寸法が略同一の正方形タイプのものであって、補強部材11は、第一タイプの補強部材としての第一補強部材11Aと、第二タイプの補強部材としての第二補強部材11Bとで構成され、補強部材12は、幅及び奥行き寸法と高さ寸法とが異なる長方形タイプの調整用補強部材とされている。第一補強部材11Aは、接合部6の近傍である梁5の上下と基礎3の上側に設けられ、第二補強部材11Bは、接合部6から離隔した柱4の中間部に設けられている。また、調整用補強部材である補強部材12は、基礎3から梁5の下面までの高さや上下階の梁5間の高さによって、複数の補強部材11を積層しただけでは割り切れない半端な寸法が出る場合に用いられるものであって、その半端な寸法分を含めた高さ寸法を有して補強部材12が形成されている。従って、補強部材12は、各階(基礎3から梁5の間、又は上下の梁5間)において、1個が設けられていればよく、半端な寸法が出ない場合には補強部材12を省略して複数の補強部材11のみで補強構造10が構成されていてもよい。   The reinforcing structure 10 includes a plurality of reinforcing members 11 and 12 that are stacked vertically along the flange 4 </ b> A of the column 4. The reinforcing member 11 is of a square type having substantially the same width, height and depth, and the reinforcing member 11 includes a first reinforcing member 11A as a first type reinforcing member and a second type of reinforcing member 11. The reinforcing member 12 includes a second reinforcing member 11B serving as a reinforcing member, and the reinforcing member 12 is a rectangular reinforcing reinforcing member having a different width, depth, and height. 11 A of 1st reinforcement members are provided in the upper and lower sides of the beam 5 which is the vicinity of the junction part 6, and the upper side of the foundation 3, and the 2nd reinforcement member 11B is provided in the intermediate part of the pillar 4 spaced apart from the junction part 6. FIG. . Further, the reinforcing member 12 as the adjusting reinforcing member is a half-size dimension that cannot be divided by simply laminating the plurality of reinforcing members 11 depending on the height from the foundation 3 to the lower surface of the beam 5 and the height between the beams 5 on the upper and lower floors. The reinforcing member 12 is formed to have a height dimension including a half-end dimension. Accordingly, it is sufficient that one reinforcing member 12 is provided on each floor (between the foundation 3 and the beam 5 or between the upper and lower beams 5), and the reinforcing member 12 is omitted when a half-sized dimension is not obtained. And the reinforcement structure 10 may be comprised only with the some reinforcement member 11. FIG.

また、補強構造10は、図3に示すように、補強部材11、12を柱4のフランジ4Aに固定する第一固定手段13と、上下に積層される補強部材11、12同士を互いに固定する第二固定手段14と、梁5の直下に位置する補強部材11を梁5の下フランジ5Bに固定する第三固定手段15と、梁5の直上に位置する補強部材11を梁5の上フランジ5Aに固定する第四固定手段16と、基礎3の直上に位置する補強部材11を基礎3に固定する第五固定手段17(図2、4参照)と、を備えて構成されている。なお、ここでは、上下に積層される全ての補強部材11、12が第一固定手段13によって柱4に固定された場合を示すが、上下の補強部材11、12同士が第二固定手段14によって互いに固定されていれば、補強部材11、12の全てが柱4に固定されていなくてもよい。また、第五固定手段17は、補強部材11を基礎3に固定するものの他に床スラブに固定するものとしても利用可能である。   Further, as shown in FIG. 3, the reinforcing structure 10 fixes the first fixing means 13 that fixes the reinforcing members 11 and 12 to the flange 4 </ b> A of the column 4 and the reinforcing members 11 and 12 that are stacked vertically. The second fixing means 14, the third fixing means 15 for fixing the reinforcing member 11 positioned immediately below the beam 5 to the lower flange 5B of the beam 5, and the reinforcing member 11 positioned immediately above the beam 5 are connected to the upper flange of the beam 5. A fourth fixing means 16 for fixing to 5A and a fifth fixing means 17 (see FIGS. 2 and 4) for fixing the reinforcing member 11 positioned immediately above the foundation 3 to the foundation 3 are provided. Here, the case where all the reinforcing members 11 and 12 stacked in the vertical direction are fixed to the column 4 by the first fixing means 13 is shown, but the upper and lower reinforcing members 11 and 12 are connected by the second fixing means 14. All of the reinforcing members 11 and 12 may not be fixed to the pillar 4 as long as they are fixed to each other. Further, the fifth fixing means 17 can be used not only for fixing the reinforcing member 11 to the foundation 3 but also for fixing the reinforcing member 11 to the floor slab.

補強部材11,12は、図5〜7にも示すように、柱4のフランジ4Aに沿う第一側面部21と、この第一側面部21の上端縁に連続して柱4から離れる方向に延びる上面部22と、第一側面部21の下端縁に連続して柱4から離れる方向に延びる下面部23と、上面部22及び下面部23の端縁同士を連結して第一側面部21と平行に延びる第二側面部24と、を有して全体矩形中空状かつ側方に開口して形成されている。このような補強部材11,12は、鋼板を曲げ加工して端縁同士を溶接接合して形成されてもよいし、鋼管を切断して形成されてもよいし、さらには各面部ごとの鋼板を互いに溶接接合して形成されてもよい。また、第一補強部材11A及び第二補強部材11Bは、その第一側面部21と第二側面部24との距離である幅寸法Bと、上面部22と下面部23との距離である高さ寸法Hと、これらに直交する奥行き寸法Dと、が略同一に形成された全体立方体状に形成されている。一方、補強部材12は、幅寸法B及び奥行き寸法Dがそれぞれ補強部材11と同一とされ、高さ寸法Hのみが補強部材11よりも大きく形成されている。また、第一補強部材11Aは、第一及び第二の側面部21,24と上面部22及び下面部23の各内面に四周が固定される内部パネル25を有して形成されている。   As shown in FIGS. 5 to 7, the reinforcing members 11 and 12 are connected to the first side surface portion 21 along the flange 4 </ b> A of the column 4 and the direction away from the column 4 continuously from the upper end edge of the first side surface portion 21. An upper surface portion 22 that extends, a lower surface portion 23 that extends continuously from the lower end edge of the first side surface portion 21 in a direction away from the pillar 4, and the edges of the upper surface portion 22 and the lower surface portion 23 are connected to each other. And a second side surface portion 24 extending in parallel with each other. Such reinforcing members 11 and 12 may be formed by bending a steel plate and welding the edges to each other, may be formed by cutting a steel pipe, and further, a steel plate for each surface portion. May be formed by welding together. Further, the first reinforcing member 11A and the second reinforcing member 11B have a width dimension B that is the distance between the first side surface portion 21 and the second side surface portion 24 and a high height that is the distance between the upper surface portion 22 and the lower surface portion 23. The length H and the depth dimension D orthogonal to these are formed in an overall cube shape formed substantially the same. On the other hand, the reinforcing member 12 has a width dimension B and a depth dimension D that are the same as the reinforcing member 11, and only the height dimension H is larger than the reinforcing member 11. In addition, the first reinforcing member 11 </ b> A has an inner panel 25 that is fixed around each of the first and second side surfaces 21, 24 and the inner surfaces of the upper surface 22 and the lower surface 23.

第一固定手段13は、図3(A),(B)に示すように、柱4のフランジ4Aと補強部材11、12の第一側面部21とを貫通する4本のボルト13Aと、これらの各ボルト13Aに螺合するナット13Bと、を有して構成されている。そして、補強部材11,12の第一側面部21には、ボルト13Aを挿通させる挿通孔21A(図5〜7参照)が形成されている。第二固定手段14は、補強部材11、12の上面部22及び下面部23を貫通する4本のボルト14Aと、これらの各ボルト14Aに螺合するナット14Bと、を有して構成されている。そして、補強部材11,12の上面部22及び下面部23には、それぞれボルト14Aを挿通させる挿通孔22A,23A(図5〜7参照)が形成されている。第三固定手段15は、梁5の下フランジ5Bと補強部材11の上面部22(挿通孔22A)とを貫通する4本のボルト15Aと、これらの各ボルト15Aに螺合するナット15Bと、を有して構成されている。第四固定手段16は、梁5の上フランジ5Aと補強部材11の下面部23(挿通孔23A)とを貫通する4本のボルト16Aと、これらの各ボルト16Aに螺合するナット16Bと、を有して構成されている。第五固定手段17は、図2、4に示すように、基礎3の増打部3Bに埋設されて補強部材11の下面部23(挿通孔23A)を貫通する4本のアンカーボルト17Aと、これらの各アンカーボルト17Aに螺合するナット17Bと、を有して構成されている。   As shown in FIGS. 3A and 3B, the first fixing means 13 includes four bolts 13A penetrating the flange 4A of the column 4 and the first side surface portion 21 of the reinforcing members 11 and 12, and these And a nut 13B screwed to each bolt 13A. The first side surface portion 21 of the reinforcing members 11 and 12 is formed with an insertion hole 21A (see FIGS. 5 to 7) through which the bolt 13A is inserted. The second fixing means 14 includes four bolts 14A that pass through the upper surface portion 22 and the lower surface portion 23 of the reinforcing members 11 and 12, and nuts 14B that are screwed into these bolts 14A. Yes. And the insertion holes 22A and 23A (refer FIGS. 5-7) which penetrate the volt | bolt 14A are formed in the upper surface part 22 and the lower surface part 23 of the reinforcement members 11 and 12, respectively. The third fixing means 15 includes four bolts 15A that penetrate the lower flange 5B of the beam 5 and the upper surface portion 22 (insertion hole 22A) of the reinforcing member 11, and nuts 15B that are screwed into these bolts 15A. It is comprised. The fourth fixing means 16 includes four bolts 16A that penetrate the upper flange 5A of the beam 5 and the lower surface portion 23 (insertion hole 23A) of the reinforcing member 11, and nuts 16B that are screwed into these bolts 16A. It is comprised. As shown in FIGS. 2 and 4, the fifth fixing means 17 includes four anchor bolts 17 </ b> A embedded in the increased hitting portion 3 </ b> B of the foundation 3 and penetrating the lower surface portion 23 (insertion hole 23 </ b> A) of the reinforcing member 11, And a nut 17B screwed to each of these anchor bolts 17A.

本実施形態において、補強部材11,12は、例えば、一般構造用角形鋼管(STKR400)であって板厚寸法が12mmのものを切断して形成され、その幅寸法Bが250mm、奥行き寸法Dが250mmに設定されている。また、補強部材11は、高さ寸法Hが250mmに設定され、補強部材12は、高さ寸法Hが250mmを越えて500mm未満に設定されている。さらに、第一補強部材11Aの内部パネル25は、降伏点強度が低く(例えば、80〜250N/mm2)かつ延性に優れた(例えば、伸び性能が30〜50%程度)鋼材(極軟鋼や低降伏点鋼、ダンパー用鋼材等と称される鋼材)を用いて形成されている。また、ボルト13A,14A,15A,16Aは、例えば、中ボルト(M16)が用いられ、アンカーボルト17Aは、例えば、長さ320mmの建築構造用アンカーボルト(ABR400、M16)が用いられている。なお、補強部材11,12の材種や各部寸法、ボルト13A,14A,15A,16Aやアンカーボルト17Aの材種や径寸法などは、前述したものに限られず、適宜に選択可能であることは自明である。また、内部パネル25は、極軟鋼などに限られず、一般構造用鋼材(SS400等)や溶接構造用鋼材(SM400A〜C等)で形成されていてもよく、さらには鋼材に限らず、任意の素材から形成されていてもよい。   In this embodiment, the reinforcing members 11 and 12 are formed by cutting, for example, a general structural square steel pipe (STKR400) having a plate thickness of 12 mm, a width B of 250 mm, and a depth D. It is set to 250 mm. The reinforcing member 11 has a height dimension H set to 250 mm, and the reinforcing member 12 has a height dimension H exceeding 250 mm and less than 500 mm. Furthermore, the inner panel 25 of the first reinforcing member 11A has a low yield point strength (for example, 80 to 250 N / mm 2) and excellent ductility (for example, an elongation performance of about 30 to 50%). Yield point steel, steel material called damper steel, etc.). The bolts 13A, 14A, 15A, and 16A are, for example, medium bolts (M16), and the anchor bolts 17A are, for example, 320 mm long building structure anchor bolts (ABR400, M16). It should be noted that the types and sizes of the reinforcing members 11 and 12 and the types and diameters of the bolts 13A, 14A, 15A, and 16A and the anchor bolt 17A are not limited to those described above, and can be appropriately selected. It is self-explanatory. Further, the inner panel 25 is not limited to ultra mild steel or the like, and may be formed of general structural steel (SS400 or the like) or welded structural steel (SM400A to C or the like). You may form from the raw material.

以上の補強構造10の施工手順としては、先ず、基礎3において、立上部3Aの側面にコンクリートを増し打ちして増打部3Bを形成するとともに、この増打部3Bの内部にアンカーボルト17Aを埋設しておく。また、柱4のフランジ4Aと梁5のフランジ5A,5Bには、それぞれボルト13A,15A,16Aを挿通させるための図示しない挿通孔を形成しておく。次に、アンカーボルト17Aの先端を補強部材11の挿通孔23Aに挿通させてから、アンカーボルト17Aにナット17Bを螺合させ、基礎3の直上に位置する補強部材11を基礎3に固定する。また、梁5の直下に位置する補強部材11の上面部22を梁5の下フランジ5Bに沿わせ、下フランジ5Bの挿通孔と上面部22の挿通孔22Aとにボルト15Aを挿通させてから、ボルト15Aにナット15Bを螺合させ、下フランジ5Bに補強部材11を固定する。これと同様に、梁5の直上に位置する補強部材11の下面部23を梁5の上フランジ5Aに沿わせ、上フランジ5Aの挿通孔と下面部23の挿通孔23Aとにボルト16Aを挿通させてから、ボルト16Aにナット16Bを螺合させ、上フランジ5Aに補強部材11を固定する。   As a construction procedure of the reinforcing structure 10 described above, first, in the foundation 3, concrete is added to the side surface of the upright portion 3A to form the increased hitting portion 3B, and the anchor bolt 17A is installed inside the increased hitting portion 3B. Be buried. Also, through holes (not shown) for inserting bolts 13A, 15A, and 16A are formed in the flange 4A of the column 4 and the flanges 5A and 5B of the beam 5, respectively. Next, after inserting the tip of the anchor bolt 17 </ b> A into the insertion hole 23 </ b> A of the reinforcing member 11, the nut 17 </ b> B is screwed into the anchor bolt 17 </ b> A, and the reinforcing member 11 positioned immediately above the foundation 3 is fixed to the foundation 3. Further, after the upper surface portion 22 of the reinforcing member 11 located immediately below the beam 5 is along the lower flange 5B of the beam 5, the bolt 15A is inserted through the insertion hole of the lower flange 5B and the insertion hole 22A of the upper surface portion 22. The nut 15B is screwed to the bolt 15A, and the reinforcing member 11 is fixed to the lower flange 5B. Similarly, the lower surface portion 23 of the reinforcing member 11 positioned immediately above the beam 5 is placed along the upper flange 5A of the beam 5, and the bolt 16A is inserted into the insertion hole of the upper flange 5A and the insertion hole 23A of the lower surface portion 23. Then, the nut 16B is screwed into the bolt 16A, and the reinforcing member 11 is fixed to the upper flange 5A.

次に、前述のように固定した上下の補強部材11間に他の補強部材11,12を順番に取り付けていく。先ず、下側の補強部材11の上に他の補強部材11(又は補強部材12)を重ねるか、あるいは、上側の補強部材11の下に他の補強部材11(又は補強部材12)を沿わせてから、互いの上面部22及び下面部23の挿通孔22A,23Aにボルト14Aを挿通させてから、ボルト14Aにナット14Bを螺合させ、上下に隣接する補強部材11同士を固定する。さらに、各補強部材11(又は補強部材12)と柱4とにおいて、第一側面部21の挿通孔21Aとフランジ4Aの挿通孔とにボルト13Aを挿通させてから、ボルト13Aにナット13Bを螺合させ、柱4に補強部材11(又は補強部材12)を固定する。以上の固定作業を繰り返し行うことで、補強部材11,12を上下に積層するとともに、これらの積層した補強部材11,12を柱4、梁5及び基礎3に固定し、これにより補強構造10の施工が完了する。なお、必要に応じて、基礎3と補強部材11の下面部23との間や、梁5のフランジ5A,5Bと補強部材11の上面部22又は下面部23との間、さらには柱4のフランジ4Aと補強部材11,12の第一側面部21との間、等の隙間に無収縮モルタルなどの充填材を充填したり、接着剤を充填して接着したりしてもよい。   Next, the other reinforcing members 11 and 12 are sequentially attached between the upper and lower reinforcing members 11 fixed as described above. First, another reinforcing member 11 (or reinforcing member 12) is overlaid on the lower reinforcing member 11, or another reinforcing member 11 (or reinforcing member 12) is placed under the upper reinforcing member 11. After that, the bolt 14A is inserted into the insertion holes 22A and 23A of the upper surface portion 22 and the lower surface portion 23, and then the nut 14B is screwed to the bolt 14A to fix the reinforcing members 11 adjacent to each other vertically. Further, in each reinforcing member 11 (or reinforcing member 12) and column 4, bolt 13A is inserted through insertion hole 21A of first side surface portion 21 and insertion hole of flange 4A, and then nut 13B is screwed into bolt 13A. Then, the reinforcing member 11 (or the reinforcing member 12) is fixed to the column 4. By repeatedly performing the above fixing operation, the reinforcing members 11 and 12 are stacked up and down, and the stacked reinforcing members 11 and 12 are fixed to the column 4, the beam 5, and the foundation 3. Construction is complete. If necessary, between the foundation 3 and the lower surface portion 23 of the reinforcing member 11, between the flanges 5A and 5B of the beam 5 and the upper surface portion 22 or the lower surface portion 23 of the reinforcing member 11, and further, A gap such as a non-shrink mortar may be filled in a gap such as between the flange 4A and the first side surface portion 21 of the reinforcing members 11 and 12, or an adhesive may be filled and bonded.

このような補強構造10の施工手順によれば、複数の補強部材11,12を上下に積層することで、個々の補強部材11,12のサイズを小型化するとともに、モジュール化により形状や寸法を共通化することができる。従って、建物1の構造形式や各部の寸法(上下の梁5間の寸法等)に対して、共通の補強部材11を用いるとともに、半端な寸法に対して調整用補強部材である補強部材12によって調整することができ、補強部材11,12の製作コストや設置コストを抑制することができる。さらに、補強部材11,12が第一側面部21と上面部22と下面部23と第二側面部24とを有して全体矩形中空状に形成されているので、補強部材11,12自体を軽量化することができるとともに、積み重ねて搬送したり適宜な個数ずつを建物に搬入したりなど、搬送や搬入、設置の作業を容易に実施することができる。また、補強部材11,12の中空部を利用して柱4や梁5、基礎3への固定作業、及び補強部材11,12同士の固定作業を実施できることで、作業を容易に行うことができて施工性を向上させることができる。また、第一〜第四の固定手段13〜16がボルト13A,14A,15A,16A及びナット13B,14B,15B,16Bで構成され、第五固定手段17がアンカーボルト17A及びナット17Bで構成されているので、補強構造10の施工に際して溶接等の火気を使用する必要がないことから、現場養生等が簡略化できて既存の建物1内において施工しやすくできる。   According to the construction procedure of such a reinforcing structure 10, the plurality of reinforcing members 11, 12 are stacked one above the other to reduce the size of the individual reinforcing members 11, 12 and to form and dimension by modularization. Can be shared. Accordingly, the common reinforcing member 11 is used for the structural type of the building 1 and the dimensions of each part (the dimension between the upper and lower beams 5), and the reinforcing member 12 that is an adjustment reinforcing member for the half-sized dimension. It can adjust, and the manufacturing cost and installation cost of the reinforcement members 11 and 12 can be suppressed. Furthermore, since the reinforcing members 11 and 12 have the first side surface portion 21, the upper surface portion 22, the lower surface portion 23, and the second side surface portion 24 and are formed in an overall rectangular hollow shape, the reinforcing members 11 and 12 themselves are In addition to being able to reduce the weight, it is possible to easily carry out the work of carrying, carrying in, and setting, such as stacking and carrying, or carrying an appropriate number of pieces into the building. In addition, since the hollow portion of the reinforcing members 11 and 12 can be used to perform the fixing work to the column 4, the beam 5 and the foundation 3 and the fixing work of the reinforcing members 11 and 12, the work can be easily performed. Workability can be improved. Further, the first to fourth fixing means 13 to 16 are constituted by bolts 13A, 14A, 15A and 16A and nuts 13B, 14B, 15B and 16B, and the fifth fixing means 17 is constituted by anchor bolts 17A and nuts 17B. Therefore, since it is not necessary to use fire such as welding when constructing the reinforcing structure 10, on-site curing and the like can be simplified and construction in the existing building 1 can be facilitated.

次に、補強構造10の作用としては、地震等によって建物本体2が変形した場合、即ち鉛直部材である柱4及び水平部材である梁5に曲げ・せん断変形が生じた場合において、柱4及び梁5に固定した複数の補強部材11,12が変形に追従し、応力を負担することで建物本体2の荷重を支持するとともに変形を抑制させることができる。この際、特に応力や変形が集中しやすい接合部6の周辺に内部パネル25を有した第一補強部材11Aを設けていることで、柱4、梁5及び接合部6の変形に追従した第一補強部材11Aの内部パネル25にせん断力を負担させることができ、接合部6周辺の応力伝達を円滑化させることができる。さらに、内部パネル25が所定のせん断力により塑性化して履歴エネルギー吸収を行う減衰材料としての極軟鋼などから構成されているので、負担したせん断力に応じたエネルギー吸収による減衰力を発揮することができ、建物1の耐震性能を高めることができる。   Next, as a function of the reinforcing structure 10, when the building body 2 is deformed due to an earthquake or the like, that is, when bending / shearing deformation occurs in the pillar 4 as a vertical member and the beam 5 as a horizontal member, The plurality of reinforcing members 11 and 12 fixed to the beam 5 follow the deformation and bear the stress, thereby supporting the load of the building body 2 and suppressing the deformation. At this time, the first reinforcing member 11A having the inner panel 25 is provided around the joint portion 6 where stress and deformation are particularly likely to concentrate, so that the first follow-up of the deformation of the column 4, the beam 5 and the joint portion 6 is achieved. A shearing force can be applied to the inner panel 25 of the reinforcing member 11A, and the stress transmission around the joint 6 can be smoothed. Further, since the inner panel 25 is made of ultra-soft steel as a damping material that plasticizes by a predetermined shear force and absorbs hysteresis energy, it can exhibit a damping force due to energy absorption according to the burdened shear force. It is possible to improve the seismic performance of the building 1.

なお、前述した実施形態は本発明の代表的な形態を示したに過ぎず、本発明は、実施形態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。   In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

例えば、本発明の補強構造としては、前記実施形態で説明した補強構造10のように補強部材11,12を柱4に沿った一列で取り付けたものに限らず、図8に示すように、柱4に沿う補強部材11を挟んで反対側に隣接する隣接補強部材18を備えたものでもよいし、図9に示すように、柱4の中間部や柱脚部の補強部材が省略されるとともに隣接補強部材18を備えたものでもよい。   For example, the reinforcing structure of the present invention is not limited to the reinforcing members 11 and 12 attached in a line along the pillar 4 as in the reinforcing structure 10 described in the above embodiment, but as shown in FIG. 4 may be provided with the adjacent reinforcing member 18 adjacent to the opposite side across the reinforcing member 11 along the line 4, and the intermediate member of the column 4 and the reinforcing member of the column base are omitted as shown in FIG. The thing provided with the adjacent reinforcement member 18 may be sufficient.

具体的には、図8に示す補強構造10Aは、前記実施形態と同様の補強部材11,12と、柱頭部において補強部材11に隣接して設けられる複数(例えば、3個)の隣接補強部材18と、を備えて構成されている。隣接補強部材18は、第一補強部材11Aと共通部材で構成され、補強部材11に隣り合う2個の隣接補強部材18を上下に並べた第一列と、この第一列に隣り合って1個の隣接補強部材18を設けた第二列と、によって柱4から離れる側に向かって段数が減じられたハンチ状に構成されている。そして、第一列の隣接補強部材18は、補強部材11に対して第二固定手段14(ボルト14A及びナット14B)で固定されるとともに、上下の隣接補強部材18同士も第二固定手段14で固定され、上側の隣接補強部材18は、梁5の下フランジ5Bに対して第三固定手段15(ボルト15A及びナット15B)で固定されている。また、第二列の隣接補強部材18は、第一列の隣接補強部材18に対して第二固定手段14(ボルト14A及びナット14B)で固定され、梁5の下フランジ5Bに対して第三固定手段15(ボルト15A及びナット15B)で固定されている。   Specifically, the reinforcing structure 10A shown in FIG. 8 includes the same reinforcing members 11 and 12 as in the above embodiment, and a plurality of (for example, three) adjacent reinforcing members provided adjacent to the reinforcing member 11 at the column head. 18. The adjacent reinforcing member 18 is formed of a common member with the first reinforcing member 11A, and a first row in which two adjacent reinforcing members 18 adjacent to the reinforcing member 11 are arranged one above the other, and 1 adjacent to the first row. The second row in which the adjacent reinforcing members 18 are provided is configured in a haunch shape in which the number of steps is reduced toward the side away from the column 4. The adjacent reinforcing members 18 in the first row are fixed to the reinforcing member 11 by the second fixing means 14 (bolts 14A and nuts 14B), and the upper and lower adjacent reinforcing members 18 are also fixed by the second fixing means 14. The upper adjacent reinforcing member 18 is fixed to the lower flange 5B of the beam 5 by the third fixing means 15 (bolt 15A and nut 15B). Further, the adjacent reinforcing member 18 in the second row is fixed to the adjacent reinforcing member 18 in the first row by the second fixing means 14 (bolt 14A and nut 14B), and third to the lower flange 5B of the beam 5. It is fixed with fixing means 15 (bolt 15A and nut 15B).

一方、図9に示す補強構造10Bは、図8の補強構造10Aのうち、柱頭部の3個の補強部材11と隣接補強部材18とで構成され、即ち、柱4の中間部や柱脚部に補強部材11,12を固定せず、接合部6の近傍のうちで梁5の下側のみに補強部材11及び隣接補強部材18を設けた構造となっている。以上のような補強構造10A,10Bによれば、柱4に沿った補強部材11に隣接してハンチ状に配列した隣接補強部材18を固定することで、柱4と梁5及び接合部6を互いに強固に連結することができ、これらの部材間において伝達可能な応力を高めて補強効果をさらに向上させることができる。そして、第二固定手段14及び第三固定手段15によって隣接補強部材18を固定することで、固定構造を共通化して施工性を良好にすることができる。さらに、補強構造10Bのように、柱4の中間部や柱脚部から補強部材11,12を省略することで、建物1の内部空間を有効に利用することができる。   On the other hand, the reinforcing structure 10B shown in FIG. 9 is composed of the three reinforcing members 11 at the column head and the adjacent reinforcing member 18 in the reinforcing structure 10A in FIG. The reinforcing members 11 and 12 are not fixed to each other, and the reinforcing member 11 and the adjacent reinforcing member 18 are provided only on the lower side of the beam 5 in the vicinity of the joint portion 6. According to the reinforcing structures 10A and 10B as described above, by fixing the adjacent reinforcing members 18 arranged in a haunch shape adjacent to the reinforcing members 11 along the columns 4, the columns 4, the beams 5, and the joint portions 6 are fixed. They can be firmly connected to each other, and the stress that can be transmitted between these members can be increased to further enhance the reinforcing effect. And by fixing the adjacent reinforcement member 18 by the 2nd fixing means 14 and the 3rd fixing means 15, a fixing structure can be made common and workability | operativity can be made favorable. Furthermore, the internal space of the building 1 can be used effectively by omitting the reinforcing members 11 and 12 from the middle part of the column 4 and the column base as in the reinforcing structure 10B.

また、前記実施形態では、倉庫や事務所ビル等の既存建物に補強構造10,10A,10Bを適用する場合を例示したが、本発明の補強構造は、既存建物に限らず、新築の建物にも適用可能である。また、本発明の補強構造は、建物1の張間方向のみならず、桁行方向にも適用することができ、張間方向及び桁行方向の両方向に適用してもよい。また、前記実施形態では、建物本体2の下階から上階までの全ての階における柱4に沿って補強構造10,10A,10Bを設けた形態を例示したが、これに限らず、補強が必要とされる階における適宜な本数の柱4に沿って補強構造が設けられていればよい。さらに、補強部材11,12を沿わせる鉛直部材としては、柱4に限らず壁等であってもよく、水平部材としては、梁5に限らず、床スラブ等であってもよい。   Moreover, in the said embodiment, although the case where the reinforcement structure 10, 10A, 10B was applied to existing buildings, such as a warehouse and an office building, was illustrated, the reinforcement structure of this invention is not only an existing building but a newly built building. Is also applicable. Further, the reinforcing structure of the present invention can be applied not only in the span direction of the building 1 but also in the column direction, and may be applied in both the span direction and the column direction. Moreover, in the said embodiment, although the form which provided the reinforcement structure 10, 10A, 10B along the pillar 4 in all the floors from the lower floor to the upper floor of the building main body 2 was illustrated, not only this but reinforcement is carried out. The reinforcement structure should just be provided along the appropriate number of pillars 4 in the required floor. Further, the vertical member along which the reinforcing members 11 and 12 are arranged is not limited to the pillar 4 but may be a wall or the like, and the horizontal member is not limited to the beam 5 but may be a floor slab or the like.

また、前記実施形態では、補強部材11,12として、第一側面部21、上面部22、下面部23及び第二側面部24によって四面が構成され、他の二面が開放された立方体状又は直方体状の形態を例示したが、これに限らず、補強部材の形態は、他の二面のうちの少なくとも一面が閉鎖されたものでもよい。さらに、補強部材11,12としては、前記実施形態のように鋼製のものに限られず、樹脂製やコンクリート製、セラミックス製など、その素材は特に限定されない。また、前記実施形態では、第一〜第四の固定手段13〜16としてボルト・ナット接合を採用したが、これに限らず、線溶接やスタッド接合などの任意の固定手段を採用することができる。ここで、線溶接としては、補強部材に貫通孔を形成しておき、この貫通孔の内周と固定対象部材(柱や梁、他の補強部材など)とを溶接接合して固定する固定手段である。また、スタッド接合としては、固定対象物にスタッドを固定しておき、このスタッドを補強部材の挿通孔に挿通させてナットを螺合する固定手段である。   Moreover, in the said embodiment, as the reinforcing members 11 and 12, the 1st side surface part 21, the upper surface part 22, the lower surface part 23, and the 2nd side surface part 24 comprised four sides, and the other two surfaces were opened, or the cube shape or Although a rectangular parallelepiped shape was illustrated, the present invention is not limited to this, and the shape of the reinforcing member may be one in which at least one of the other two surfaces is closed. Furthermore, the reinforcing members 11 and 12 are not limited to those made of steel as in the above-described embodiment, and the material thereof is not particularly limited, such as resin, concrete, or ceramics. Moreover, in the said embodiment, although bolt and nut joining was employ | adopted as the 1st-4th fixing means 13-16, not only this but arbitrary fixing means, such as wire welding and a stud joining, are employable. . Here, as wire welding, a fixing means for forming a through hole in the reinforcing member and fixing the inner periphery of the through hole and a fixing target member (column, beam, other reinforcing member, etc.) by welding. It is. The stud joining is a fixing means for fixing a stud to an object to be fixed and inserting the stud into an insertion hole of a reinforcing member and screwing a nut.

さらに、前記実施形態では、建物本体の構造種別が鉄骨造の場合を例示したが、これに限らず、鉄筋コンクリート造や木造の建物を補強対象としてもよい。建物の鉛直部材や水平部材が鉄筋コンクリート造の場合、固定手段としては、ケミカルアンカー等のアンカー材を躯体に打ち込み、このアンカー材を補強部材の挿通孔に挿通させてナットを螺合するなどの構造を採用してもよい。また、建物が木造の場合には、固定金物をビス止め等によって柱や梁に固定しておき、この固定金物と補強部材とをボルト等によって固着してもよい。さらに、鉛直部材や水平部材を挟んで補強部材を設置する場合には、鉛直部材や水平部材にアンカーボルト等の貫通部材を貫通させておき、この貫通部材によって補強部材を固定してもよい。   Furthermore, in the said embodiment, although the case where the structure classification of the building main body was a steel structure was illustrated, it is good also as a reinforcement object not only in this but a reinforced concrete structure or a wooden building. When the vertical and horizontal members of the building are reinforced concrete, the fixing means is a structure in which an anchor material such as a chemical anchor is driven into the housing, the anchor material is inserted into the insertion hole of the reinforcing member, and the nut is screwed together May be adopted. When the building is made of wood, the fixed hardware may be fixed to a column or beam by screws or the like, and the fixed hardware and the reinforcing member may be fixed with bolts or the like. Furthermore, when installing a reinforcing member across a vertical member or a horizontal member, a penetrating member such as an anchor bolt may be passed through the vertical member or the horizontal member, and the reinforcing member may be fixed by the penetrating member.

1 建物
3 基礎
4 柱(鉛直部材)
5 梁(水平部材)
6 接合部
10,10A,10B 補強構造
11,12 補強部材
11A 第一補強部材(第一タイプの補強部材)
11B 第二補強部材(第二タイプの補強部材)
13 第一固定手段
14 第二固定手段
15 第三固定手段
16 第四固定手段
17 第五固定手段
18 隣接補強部材
21 第一側面部
22 上面部
23 下面部
24 第二側面部
25 内部パネル
1 Building 3 Foundation 4 Pillar (Vertical Member)
5 Beam (horizontal member)
6 Junction 10, 10A, 10B Reinforcement structure 11, 12 Reinforcement member 11A First reinforcement member (first type reinforcement member)
11B Second reinforcing member (second type reinforcing member)
DESCRIPTION OF SYMBOLS 13 1st fixing means 14 2nd fixing means 15 3rd fixing means 16 4th fixing means 17 5th fixing means 18 Adjacent reinforcement member 21 1st side surface part 22 Upper surface part 23 Lower surface part 24 2nd side surface part 25 Internal panel

Claims (7)

互いに接合された鉛直部材及び水平部材を有した建物の補強構造であって、
前記鉛直部材が鉄骨製の柱であり、前記水平部材が鉄骨製の梁であり、該柱と該梁とが接合部を介して剛接されてラーメン架構を構成し、
前記鉛直部材に沿って上下に積層される複数の補強部材と、
前記複数の補強部材のうちの少なくとも一部を前記鉛直部材に固定する第一固定手段と、
前記上下に積層される補強部材同士を互いに固定する第二固定手段と、
前記水平部材の直下に位置する前記補強部材を該水平部材に固定する第三固定手段と、を備え、
前記補強部材は、前記鉛直部材の側面に沿う第一側面部と、該第一側面部の上端縁に連続して前記鉛直部材から離れる方向に延びる上面部と、前記第一側面部の下端縁に連続して前記鉛直部材から離れる方向に延びる下面部と、前記上面部及び前記下面部の端縁同士を連結して前記第一側面部と平行に延びる第二側面部と、を有して全体矩形中空状に形成された鋼製部材であり、前記第一側面部と前記鉛直部材とが前記第一固定手段であるボルト−ナット接合、線溶接、あるいはスタッド接合によって直接固定され、
前記複数の補強部材は、前記鉛直部材の略全長に沿って上下に積層されており、
前記水平部材の直上に位置する前記補強部材を該水平部材に固定する第四固定手段、及び、基礎又は床スラブの直上に位置する前記補強部材を該基礎又は床スラブに固定する第五固定手段、の少なくとも一方を備えて構成され
上下に積層された前記複数の補強部材のうち、下側に位置する前記水平部材、前記基礎又は前記床スラブから上側に位置する前記水平部材までの高さにおける下側から過半の高さ範囲に位置する複数の補強部材は、それらの前記第二側面部に他の補強部材が固定されず前記鉛直部材の反対側が開放されていることを特徴とする建物の補強構造。
A building reinforcing structure having a vertical member and a horizontal member joined to each other,
The vertical member is a steel column, the horizontal member is a steel beam, and the column and the beam are rigidly connected to each other via a joint portion to constitute a frame structure,
A plurality of reinforcing members stacked vertically along the vertical member;
First fixing means for fixing at least a part of the plurality of reinforcing members to the vertical member;
A second fixing means for fixing the reinforcing members stacked on the top and bottom to each other;
A third fixing means for fixing the reinforcing member located immediately below the horizontal member to the horizontal member;
The reinforcing member includes a first side surface portion along a side surface of the vertical member, an upper surface portion extending in a direction away from the vertical member continuously to an upper end edge of the first side surface portion, and a lower end edge of the first side surface portion. A lower surface portion that extends continuously in a direction away from the vertical member, and a second side surface portion that connects the edges of the upper surface portion and the lower surface portion and extends parallel to the first side surface portion. It is a steel member formed in an overall rectangular hollow shape , and the first side surface portion and the vertical member are directly fixed by bolt-nut joining, wire welding, or stud joining as the first fixing means,
The plurality of reinforcing members are stacked vertically along substantially the entire length of the vertical member,
Fourth fixing means for fixing the reinforcing member positioned immediately above the horizontal member to the horizontal member, and fifth fixing means for fixing the reinforcing member positioned immediately above the foundation or floor slab to the foundation or floor slab is configured to include at least one of,
Among the plurality of reinforcing members stacked vertically, the horizontal member located on the lower side, the foundation or the floor slab to the horizontal member located on the upper side, from the lower side to the majority height range The plurality of reinforcing members positioned are the reinforcing structure of a building, wherein other reinforcing members are not fixed to the second side surface portion and the opposite side of the vertical member is opened .
前記複数の補強部材は、前記上面部、前記下面部、前記第一及び第二の側面部の各内面に四周が固定される内部パネルを有した第一タイプのものと、前記内部パネルを有しない第二タイプのものと、を備えて構成されることを特徴とする請求項1に記載の建物の補強構造。 The plurality of reinforcing members include a first type member having an inner panel whose four sides are fixed to each inner surface of the upper surface portion, the lower surface portion, and the first and second side surface portions, and the inner panel. The building reinforcing structure according to claim 1, comprising: a second type that does not. 前記第一タイプの補強部材は、前記鉛直部材と前記水平部材とが接合される接合部の近傍に設けられ、前記第二タイプの補強部材は、前記接合部から離隔された位置に設けられていることを特徴とする請求項に記載の建物の補強構造。 The first type reinforcing member is provided in the vicinity of a joint portion where the vertical member and the horizontal member are joined, and the second type reinforcing member is provided at a position separated from the joint portion. The building reinforcing structure according to claim 2 , wherein 前記内部パネルは、所定のせん断力により塑性化して履歴エネルギー吸収を行う減衰材料から構成されることを特徴とする請求項又はに記載の建物の補強構造。 The reinforcing structure for a building according to claim 2 or 3 , wherein the inner panel is made of a damping material that is plasticized by a predetermined shear force and absorbs hysteresis energy. 前記複数の補強部材は、前記上面部及び前記下面部の幅寸法と前記第一及び第二の側面部の高さ寸法とが略同一の正方形タイプのものと、前記上面部及び前記下面部の幅寸法と前記第一及び第二の側面部の高さ寸法とが異なる長方形タイプのものと、を備えて構成されることを特徴とする請求項1〜のいずれか一項に記載の建物の補強構造。 The plurality of reinforcing members are of a square type in which the width dimension of the upper surface part and the lower surface part and the height dimension of the first and second side surface parts are substantially the same, and the upper surface part and the lower surface part The building according to any one of claims 1 to 4 , comprising a rectangular type having a width dimension and a height type of the first and second side portions different from each other. Reinforcement structure. 前記鉛直部材に沿う前記補強部材を挟んで該鉛直部材の反対側に隣接して設けられる一又は複数の隣接補強部材をさらに備え、
前記隣接補強部材は、前記補強部材と共通の全体矩形中空状に形成されていることを特徴とする請求項1〜のいずれか一項に記載の建物の補強構造。
One or more adjacent reinforcing members provided adjacent to the opposite side of the vertical member across the reinforcing member along the vertical member;
The said adjacent reinforcement member is formed in the whole rectangular hollow shape common to the said reinforcement member, The reinforcement structure of the building as described in any one of Claims 1-5 characterized by the above-mentioned.
前記隣接補強部材は、複数段かつ複数列に配列されるとともに、前記鉛直部材に沿う前記補強部材から離れた列ほど段数が減じられた複数で構成されており、
上下左右に隣り合う前記隣接補強部材同士、及び隣り合う前記補強部材と前記隣接補強部材とが、前記第二固定手段によって互いに固定され、
前記水平部材の直下に位置する前記隣接補強部材と該水平部材とが前記第三固定手段によって固定されていることを特徴とする請求項に記載の建物の補強構造。
The adjacent reinforcing members are arranged in a plurality of rows and a plurality of rows, and are composed of a plurality of rows having a reduced number of steps as a row away from the reinforcing member along the vertical member,
The adjacent reinforcing members adjacent to each other vertically and horizontally, and the adjacent reinforcing member and the adjacent reinforcing member are fixed to each other by the second fixing means,
The reinforcing structure for a building according to claim 6 , wherein the adjacent reinforcing member located immediately below the horizontal member and the horizontal member are fixed by the third fixing means.
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