JPH1171907A - Vibration-resistant reinforcing method of existing building - Google Patents

Vibration-resistant reinforcing method of existing building

Info

Publication number
JPH1171907A
JPH1171907A JP24786597A JP24786597A JPH1171907A JP H1171907 A JPH1171907 A JP H1171907A JP 24786597 A JP24786597 A JP 24786597A JP 24786597 A JP24786597 A JP 24786597A JP H1171907 A JPH1171907 A JP H1171907A
Authority
JP
Japan
Prior art keywords
existing
beams
blocks
block
columns
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP24786597A
Other languages
Japanese (ja)
Other versions
JP3766941B2 (en
Inventor
Koji Murata
耕司 村田
Makihito Sawamura
牧人 沢村
Hirofumi Kaneko
洋文 金子
Yasumasa Miyauchi
靖昌 宮内
Kunihiro Nogami
邦宏 野上
Kaoru Otani
馨 大谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Komuten Co Ltd
Original Assignee
Takenaka Komuten Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takenaka Komuten Co Ltd filed Critical Takenaka Komuten Co Ltd
Priority to JP24786597A priority Critical patent/JP3766941B2/en
Publication of JPH1171907A publication Critical patent/JPH1171907A/en
Application granted granted Critical
Publication of JP3766941B2 publication Critical patent/JP3766941B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Working Measures On Existing Buildindgs (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent increase in the weight of a bearing wall and construct it in a high workability and reduce the construction period, etc. SOLUTION: A number of blocks 10, 10A made of a short and square iron cylindrical body are stacked in the space S surrounded by existing right and left columns 2 and existing upper and lower beams 3 so that respective end faces of the blocks are nearly flush with each other, to form a partition. The parts facing the existing columns 2 and beams 3 of the blocks 10, 10A constituting the partition, are connected to the existing columns and beams and the oppositely facing parts of these adjacent blocks 10, 10A are mutually connected to form a bearing wall. In this way, as these blocks 10, 10A made of a short and square iron cylindrical body are stacked to form a bearing wall, it can be easily constructed and the weight thereof is lighter in comparison with a vibration-resistant wall made of reinforced concrete and hence influence to the foundation is less.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、既存建築物の耐
震補強方法、特に、鉄製のブロックを用いて耐力壁を構
築する既存建築物の耐震補強方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reinforcing an existing building, and more particularly to a method for reinforcing an existing building using iron blocks.

【0002】[0002]

【従来の技術】建築物の制振方法には、例えば、次の
及びのようなものがある。 複数個の孔を軟鋼製ブロックに一定の間隔をおいて
これを水平に貫通させて設け、各孔の側辺に塑性変形域
を拡げるくびれ部を設けて、地震による振動エネルギー
を吸収し得る弾塑性ダンパーをつくり、建築物の柱と梁
とにより囲まれる空間内に壁を配して、この壁とその両
側の柱との間及び前記壁とその上下の梁との間に隙間を
設け、前記の上下梁の一方の梁と前記壁との間の隙間又
は前記の両側柱と前記壁との間の隙間に、前記弾塑性ダ
ンパーを配置し、この弾塑性ダンパーにより地震の振動
エネルギーを吸収する制振方法(例えば、特開平8−2
77651号公報参照)。 建築物の柱、梁間に設ける制振壁において、鋼板に
上下方向に沿う複数のスリットを設け、該鋼板の上部及
び下部を前記梁に対してそれぞれ固定し、前記鋼板の両
側に、該鋼板の略全面を覆うプレキャストコンクリート
板を、前記鋼板に対してその面方向の少なくとも水平方
向に沿った変位が可能な状態に該鋼板の挿通孔に挿通し
た取付ボルトにて取り付け、かつ前記鋼板とプレキャス
トコンクリート板との間に粘性体を挾み込んで制振壁を
構成し、この制振壁により地震の振動エネルギーを吸収
する制振方法(例えば、実公平4−32454号公報参
照)。既存建築物の耐震補強方法には、例えば、次の
及びのようなものがある。 鉄筋コンクリート造等の既存建築物の架構を構成す
る既存柱及び既存梁に間隔をおいて多数のアンカー用鉄
棒を植設し、前記架構の内側に金属枠体を配し、この金
属枠体を前記アンカー用鉄棒を介して既存柱及び既存梁
に取付け、前記金属枠体内に金属製のブレース材を配
し、このブレース材の両端部等を金属枠体に固着し、ブ
レース材にて前記架構を補強する耐震補強方法。 鉄筋コンクリート造等の既存建築物の架構の既存柱
及び既存梁に間隔をおいて多数のアンカー用鉄筋を植設
し、前記架構内に縦鉄筋と横鉄筋とからなる壁鉄筋を配
し、この壁鉄筋をアンカー用鉄筋を介して既存柱及び既
存梁に取付け、壁鉄筋の周囲に割裂防止筋を配し、壁鉄
筋及び割裂防止筋の両側に型枠を配し、型枠間の隙間を
モルタル又はコンクリートで埋め、モルタル又はコンク
リートの硬化後に型枠を外し、耐震壁を構築する耐震補
強方法。
2. Description of the Related Art There are the following methods for damping buildings. A plurality of holes are provided horizontally through a mild steel block at regular intervals, and constrictions are provided on the sides of each hole to expand the plastic deformation area, so that the elastic energy that can absorb vibration energy due to the earthquake is provided. Making a plastic damper, arranging a wall in the space surrounded by the columns and beams of the building, providing gaps between this wall and the columns on both sides and between the wall and the beams above and below, The elasto-plastic damper is arranged in a gap between one of the upper and lower beams and the wall or a gap between the both-side columns and the wall, and absorbs vibration energy of an earthquake by the elasto-plastic damper. (For example, see Japanese Unexamined Patent Application Publication No.
No. 77651). Pillars of the building, in the damping wall provided between the beams, the steel plate is provided with a plurality of slits along the vertical direction, the upper and lower portions of the steel plate is fixed to the beam, respectively, on both sides of the steel plate, A precast concrete plate that covers substantially the entire surface is attached to the steel plate with mounting bolts inserted into insertion holes of the steel plate so that the steel plate can be displaced in at least a horizontal direction in the plane direction, and the steel plate and the precast concrete A damping method in which a viscous body is sandwiched between a plate and a damping wall, and the damping wall absorbs the vibration energy of the earthquake (for example, see Japanese Utility Model Publication No. 4-324454). For example, the following methods are available for seismic retrofitting of existing buildings. A large number of anchoring iron bars are planted at intervals on existing columns and beams that constitute the frame of an existing building such as a reinforced concrete structure, and a metal frame is arranged inside the frame. Attached to the existing pillars and existing beams via an anchoring iron bar, a metal brace material is arranged in the metal frame, both ends of the brace material are fixed to the metal frame, and the frame is formed with the brace material. Seismic reinforcement method to reinforce. A large number of anchoring rebars are planted at intervals on existing columns and beams of a frame of an existing building such as a reinforced concrete structure, and a wall bar composed of a vertical bar and a horizontal bar is arranged in the frame. Reinforcing bars are attached to existing columns and existing beams via anchoring rebars, split-prevention bars are placed around wall rebars, formwork is placed on both sides of wall rebars and split-off rebars, and the gap between the formwork is mortared. Or a method of burying in concrete, removing the form after hardening the mortar or concrete, and constructing an earthquake-resistant wall.

【0003】[0003]

【発明が解決しようとする課題】の制振方法は、上下
梁の一方の梁と壁との間に隙間又は両側柱と壁との間の
隙間に、軟鋼製ブロックからなる弾塑性ダンパーを配置
するため、上下梁の一方の梁と壁との間又は両側柱と壁
との間に隙間が形成されるように、壁を構築する必要が
あり、建築物の重量が増加し、かつ施工性がよくないと
いう欠点がある。の制振方法は、上下方向に沿う複数
のスリットを設けた鋼板の上部及び下部を上側及び下側
の梁に固定し、プレキャストコンクリート板を前記鋼板
の両側に水平方向に沿った変位が可能な状態にボルトに
て取り付け、前記鋼板とプレキャストコンクリート板と
の間に粘性体を挾み込んで制振壁を構成することが必要
であり、制振壁の形成に手間がかかるだけでなく、建築
物の重量が増加するという欠点がある。上記のブレー
スを新設する耐震補強方法は、架構への多数のアンカー
の植設、架構への金属枠体の固定、ブレース材の金属枠
体への取付等に多くの手間がかかるだけでなく、建物空
間への金属枠体、ブレース材等の資材の搬入にも問題が
ある。上記の耐震壁を新設する耐震補強法は、架構へ
の多数のアンカー用鉄筋の植設、壁鉄筋の架構への取
付、壁鉄筋等の両側への型枠の設置、コンクリートの打
設等に多くの手間がかかるだけでなく、建築物の重量が
増加するという欠点があり、そのうえ、空間への壁鉄
筋、型枠、コンクリート等の資材の搬入にも問題があ
る。また、多量のコンクリートを使う耐震補強方法は、
建築物自体の重量の上昇を招き、逆に既存建築物の耐震
性を低下させることになる恐れがある。この発明の解決
しようとする課題は、上記〜のような従来技術が有
している欠点を有しない既存建築物の耐震補強方法を提
供すること、換言すると、耐力壁が重量増加を押えて施
工性よく構築でき、工期の短縮等が図れる既存建築物の
耐震補強方法を提供することにある。
In the vibration damping method according to the present invention, an elasto-plastic damper made of a mild steel block is arranged in a gap between one of the upper and lower beams and a wall or in a gap between both side columns and a wall. Therefore, it is necessary to construct the wall so that a gap is formed between one of the upper and lower beams and the wall or between both pillars and the wall, the weight of the building increases, and the workability is increased. There is a disadvantage that is not good. The upper and lower parts of the steel plate provided with a plurality of slits along the vertical direction are fixed to the upper and lower beams, and the precast concrete plate can be displaced in the horizontal direction on both sides of the steel plate. It is necessary to attach a viscous body between the steel plate and the precast concrete plate to form a damping wall, and it is not only time-consuming to form the damping wall, but also The disadvantage is that the weight of the object increases. The seismic retrofitting method of installing the above-mentioned brace not only takes much labor to plant a large number of anchors on the frame, fix the metal frame to the frame, attach the brace material to the metal frame, etc. There is also a problem in carrying materials such as metal frames and brace materials into the building space. The above-mentioned seismic retrofitting method for constructing new earthquake-resistant walls involves the installation of a large number of anchor reinforcing bars on the frame, installation of wall reinforcing bars on the frame, installation of formwork on both sides of the wall reinforcing bars, concrete casting, etc. Not only does it take much time and effort, but it also has the disadvantage of increasing the weight of the building. In addition, there is also a problem in bringing in materials such as wall reinforcement, formwork, and concrete into the space. In addition, the seismic strengthening method using a large amount of concrete,
There is a risk that the weight of the building itself will increase, and conversely, the seismic resistance of the existing building will be reduced. The problem to be solved by the present invention is to provide a method for seismic reinforcement of existing buildings that does not have the drawbacks of the prior art as described above, in other words, that the load-bearing wall is constructed while suppressing an increase in weight. An object of the present invention is to provide a seismic retrofitting method for an existing building that can be constructed efficiently and can shorten a construction period.

【0004】[0004]

【課題を解決するための手段】この発明の建築物の耐震
補強方法は、既存柱、既存梁等を備えた既存建築物の耐
震補強方法において、鉄材にて構成された短い角筒体か
らなる多数のブロックを、左側及び右側の既存柱と上側
及び下側の既存梁とで囲まれる空間内に、各ブロックの
端面が略面一になるように、積み重ねて仕切りをつく
り、この仕切りを構成する多数のブロックの既存柱及び
既存梁に面する部分を既存柱及び既存梁に接合し、かつ
隣接する多数のブロツクの互いに対面する部分同士を互
いに接合して耐力壁とするものである。既存梁の上側に
既存床が存在する場合には、「既存梁」という語は、既
存梁の直上の既存床の部分をも含めるものとする。この
発明の好適な実施形態においては、例えば、次の(A)
〜(D)のようにする。 (A)大きな力が作用する既存柱及び既存梁に面する部
分及び筋かいとなる対角線又は斜め線に対応する部分に
配した各ブロツクの内空部にはモルタル等の充填材を充
填する。 (B)ブロックとして、鉄材にて構成された短い角筒体
の内空部内にスチフナーを設けない無補強ブロックと、
鉄材にて構成された短い角筒体の内空部にスチフナーを
設けた補強ブロックとを用い、大きな力が作用する既存
柱及び既存梁に面する部分及び筋かいとなる対角線又は
斜め線に対応する部分には補強ブロックを配置し、その
他の部分には無補強ブロックを配置する。 (C)補強ブロックの内空部にはモルタル等の充填材を
充填してもよい。 (D)多数のブロックの既存柱及び既存梁に面する部分
は接着剤又は接着性を有する充填材を用いて既存柱及び
既存梁に接合し、隣接する多数のブロックの互いに対面
する部分同士はボルト・ナットを用いて接合する。
According to the present invention, there is provided a seismic retrofitting method for an existing building having existing columns, beams, etc., which comprises a short rectangular cylinder made of iron material. A large number of blocks are stacked in a space surrounded by the existing columns on the left and right sides and the existing beams on the upper and lower sides so that the end faces of the blocks are substantially flush with each other to form partitions and form the partitions. The portions facing the existing columns and existing beams of the large number of blocks are joined to the existing columns and existing beams, and the portions of the adjacent blocks facing each other are joined to each other to form a bearing wall. When an existing floor exists above an existing beam, the term “existing beam” includes the portion of the existing floor immediately above the existing beam. In a preferred embodiment of the present invention, for example, the following (A)
To (D). (A) Filling material such as mortar is filled in the inner space of each block arranged at the portion facing the existing column and existing beam on which a large force acts and at the portion corresponding to the diagonal line or the diagonal line serving as a streak. (B) as a block, a non-reinforced block in which no stiffener is provided in the inner space of a short rectangular cylinder made of iron material;
Using a reinforcing block with a stiffener in the inner space of a short rectangular cylindrical body made of iron material, corresponding to the diagonal line or diagonal line that faces the existing columns and beams where large force acts and the braces Reinforced blocks are placed in the portions where they do, and unreinforced blocks are placed in other portions. (C) The inner space of the reinforcing block may be filled with a filler such as mortar. (D) The portions of the many blocks facing the existing columns and the existing beams are bonded to the existing columns and the existing beams using an adhesive or an adhesive filler, and the portions of the adjacent many blocks facing each other are Join using bolts and nuts.

【0005】この発明の耐震補強方法に用いるブロック
は、例えば、次の(E)〜(H)のように構成する。 (E)鉄材にて構成された短い角筒体を、その上側の平
面部と下側の平面部とを平行し、かつ左側の平面部と右
側の平面部とを平行し、左側及び右側の平面部を上側及
び下側の平面部に対して直角に配し、左側及び右側の平
面部の上部を上側の平面部に連続させ、左側及び右側の
平面部の下部を下側の平面部に連続させて構成し、上側
及び下側の平面部の対応個所に少なくとも一つのボルト
孔を設け、左側及び右側の平面部の対応個所にも少なく
とも一つのボルト孔を設けて、ブロックを製作する。こ
のブロックが無補強ブロックである。 (F)短い角筒体の左側及び右側の平面部の上部は弧状
面部を介して上側の平面部に連続させ、左側及び右側の
平面部の下部は弧状面部を介して下側の平面部に連続さ
せる。 (G)前記の短い角筒体の内側の内空部内にその角筒体
の中心軸線に対して直角に鋼板製のスチフナーを配し、
このスチフナーの端を角筒体の平面部の内側面に溶接等
の接合手段により接合して、ブロックを製作する。この
ブロックが補強ブロックである。 (H)短い角筒体の上側、下側、左側及び右側の平面部
には、その角筒体の中心軸線に平行な2等分線上に少な
くとも一つのボルト孔を設ける。 この発明の耐震補強方法は、既存建築物の左側及び右側
の既存柱と上側及び下側の既存梁とで囲まれる空間内
に、鉄材にて構成された短い角筒体からなる多数のブロ
ックを積み重ねて耐力壁を構築するため、鉄筋コンクリ
ート造、鉄骨鉄筋コンクリート造又は鉄骨造の既存建築
物の耐震補強に適用できるものである。
[0005] The blocks used in the seismic retrofitting method of the present invention are configured, for example, in the following (E) to (H). (E) A short rectangular cylinder made of an iron material is formed by making the upper plane part and the lower plane part parallel and the left plane part and the right plane part parallel to each other. The plane part is arranged at right angles to the upper and lower plane parts, the upper parts of the left and right plane parts are connected to the upper plane part, and the lower parts of the left and right plane parts are connected to the lower plane part. The block is manufactured by forming a continuous structure, and providing at least one bolt hole at a corresponding portion of the upper and lower flat portions and at least one bolt hole at a corresponding portion of the left and right flat portions. This block is an unreinforced block. (F) The upper portions of the left and right flat portions of the short rectangular cylinder are connected to the upper flat portion via the arcuate surface portion, and the lower portions of the left and right flat portions are connected to the lower flat portion via the arcuate surface portion. Make it continuous. (G) A stiffener made of a steel plate is arranged in the inner space inside the short rectangular cylinder at right angles to the center axis of the rectangular cylinder,
The end of this stiffener is joined to the inner surface of the flat portion of the rectangular cylinder by joining means such as welding to produce a block. This block is the reinforcement block. (H) At least one bolt hole is provided on the upper, lower, left and right plane portions of the short rectangular cylinder on a bisector parallel to the central axis of the rectangular cylinder. The seismic retrofitting method of the present invention includes, in a space surrounded by existing columns on the left and right sides of an existing building and existing beams on the upper and lower sides, a large number of blocks made of a short rectangular cylinder made of iron material. It is applicable to seismic reinforcement of reinforced concrete structures, steel reinforced concrete structures, or steel-framed existing buildings because the bearing walls are built up by stacking.

【0006】[0006]

【実施例】実施例は、図1〜図8に示され、この出願の
発明を既存柱、既存梁等からなる架構を備えた既存建築
物の耐震補強に適用した例である。既存建築物1は、図
8に示すように、鉄筋コンクリート造、鉄骨鉄筋コンク
リート造又は鉄骨造により多層に建築され、多数(2本
だけ図示)の既存柱2と多数(6本だけ図示)の既存梁
3とが連結され、かつ既存梁3上に既存床4が設けられ
ている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment is shown in FIGS. 1 to 8 and is an example in which the invention of this application is applied to the seismic reinforcement of an existing building having a frame composed of existing columns, existing beams and the like. As shown in FIG. 8, the existing building 1 is constructed in multiple layers of reinforced concrete, steel-framed reinforced concrete, or steel frame, and has a large number (only two shown) of existing columns 2 and a large number (only six shown) of existing beams. 3 and an existing floor 4 is provided on the existing beam 3.

【0007】無補強ブロック10は、鋼板(鉄板)製で
あり、図1に示すように、その縦方向の辺の長さL1
横方向の辺の長さL2とが同じで、例えば、400mm
程度であり、その奥行きの長さL3が、例えば、200
mm程度であり、その重量が、例えば、35Kg/個程
度である鉄製の短い角筒体で構成されている。すなわ
ち、上側の平面部11と下側の平面部12とを平行し、
かつ左側の平面部13と右側の平面部14とを平行し、
左側及び右側の平面部13,14を上側及び下側の平面
部11,12に対して直角に配し、左側及び右側の平面
部13,14の上部を弧状面部15を介して上側の平面
部11に連続させ、左側及び右側の平面部13,14の
下部を弧状面部15を介して下側の平面部12に連続さ
せて、短い角筒体になっている。短い角筒体の各平面部
11〜14の角筒体の軸線と平行な方向の2等分線上
に、上側及び下側の平面部11,12の2つの対応位置
にそれぞれボルト孔Bhを設け、左側及び右側の平面部
13,14の2つの対応位置にそれぞれボルト孔Bhを
設けて、ブロック10を製作する。
The unreinforced block 10 is made of a steel plate (iron plate). As shown in FIG. 1, the length L 1 in the vertical direction and the length L 2 in the horizontal direction are the same. , 400mm
And the depth L 3 is, for example, 200
mm, the weight of which is, for example, about 35 kg / piece, made of a short rectangular iron cylinder. That is, the upper plane part 11 and the lower plane part 12 are parallel to each other,
And the left plane part 13 and the right plane part 14 are parallel to each other,
The left and right flat portions 13 and 14 are arranged at right angles to the upper and lower flat portions 11 and 12, and the upper portions of the left and right flat portions 13 and 14 are connected via the arcuate surface portion 15 to the upper flat portions. 11 and the lower portions of the left and right flat portions 13 and 14 are connected to the lower flat portion 12 via the arcuate surface portion 15 to form a short rectangular cylinder. Bolt holes Bh are provided at two corresponding positions of the upper and lower flat portions 11 and 12 on the bisectors of the respective flat portions 11 to 14 in the direction parallel to the axis of the rectangular tube. The block 10 is manufactured by providing bolt holes Bh at two corresponding positions of the left and right plane portions 13 and 14, respectively.

【0008】大きな力が作用する部分に配する補強ブロ
ック10Aは、鋼板(鉄板)製であり、その平面部11
〜14、弧状面部15、ボルト孔Bh等の形状、寸法、
位置等はブロック10と同じである。鋼板製の角筒体の
中空部の中央に、角部に切欠き16aのある4角形の鋼
板製の略4角形のスチフナー16を角筒体の軸線に対し
て直角に配し、スチフナー16の4つの辺部16bを角
筒体の平面部11〜14の内側面11a〜14aに溶接
等の接合手段により接合して、補強ブロック10Aが製
作される。なお、図3に示す中空部内にモルタルMtを
充填したブロック10又は図7に示す中空部内にモルタ
ルMtを充填した補強ブロック10Aの重量は、例え
ば、100Kg/個程度である。
[0008] The reinforcing block 10A disposed in a portion where a large force acts is made of a steel plate (iron plate).
~ 14, the shape and dimensions of the arcuate surface part 15, the bolt hole Bh, etc.
The position and the like are the same as those of the block 10. A substantially rectangular stiffener 16 made of a quadrangular steel plate having a notch 16a at the corner is disposed at a right angle to the axis of the rectangular cylinder at the center of the hollow portion of the rectangular steel tube. The four side portions 16b are joined to the inner side surfaces 11a to 14a of the flat portions 11 to 14 of the rectangular cylindrical body by joining means such as welding, and the reinforcing block 10A is manufactured. The weight of the block 10 in which the mortar Mt is filled in the hollow portion shown in FIG. 3 or the reinforcing block 10A in which the mortar Mt is filled in the hollow portion shown in FIG. 7 is, for example, about 100 kg / piece.

【0009】次に、ブロック10,10Aを用いた既存
建築物1の耐震補強方法を説明する。 図8に示すよう
に、既存建築物1の既存梁3の直上の既存床4の上面
(又は既存梁3の上面)を適宜の手段で平面にし、この
平面上に多数のブロック10,10Aを、各ブロック1
0,10Aの端面が略面一になるように積み重ねる。す
なわち、図7に示すように、左側の既存柱2の左側面
と、右側の既存柱2の右側面と、上側の既存梁3の下面
と、下側の既存梁3の直上の既存床4の上面とで囲まれ
る空間S内に、多数のブロック10,10Aを積み重ね
て、仕切りを設ける。多数のブロックのうち前記空間S
内の既存柱2、既存梁3及び既存床4に面するものにス
チフナーを設けた補強ブロック10Aを用い、また、図
8に示す空間S内に積み重ねられる多数のブロックのう
ち筋かいとなる鎖線で示すV字状の位置(すなわち、2
つの斜め線の位置)に対応するものに、スチフナーを設
けた補強ブロック10Aを用いる。そして、その他のも
のにはスチフナーを設けない無補強ブロック10を用い
る。多数のブロック10,10A同士を接合する場合に
は、図6に示すように、それらの互いに対面するブロッ
ク10A,10の平面部11〜14同士を,そこに設け
らた各ボルト孔BhにそれぞれボルトBを通し、各ボル
トBのねじ部にそれぞれナットNをねじ込んで、接合す
る。前記空間S内の既存柱2、既存梁3及び既存床4に
面する各補強ブロック10Aの平面部11〜14は、接
着剤又は接着性のある充填材17を用いて既存柱2、既
存梁3及び既存床4に固着する。
Next, a method of seismic reinforcement of the existing building 1 using the blocks 10 and 10A will be described. As shown in FIG. 8, the upper surface of the existing floor 4 (or the upper surface of the existing beam 3) immediately above the existing beam 3 of the existing building 1 is made flat by appropriate means, and a number of blocks 10 and 10A are placed on this plane. , Each block 1
The layers are stacked so that the end faces of 0 and 10A are substantially flush. That is, as shown in FIG. 7, the left side surface of the left existing column 2, the right side surface of the right existing column 2, the lower surface of the upper existing beam 3, and the existing floor 4 immediately above the lower existing beam 3. A large number of blocks 10 and 10A are stacked in a space S surrounded by the upper surface of the partition and a partition is provided. The space S among many blocks
A stiffener block 10A provided with a stiffener on an existing pillar 2, an existing beam 3, and an existing floor 4 is used, and a dashed chain line among a large number of blocks stacked in the space S shown in FIG. The V-shaped position (ie, 2
(A position of two oblique lines), a reinforcing block 10A provided with a stiffener is used. For the other components, the non-reinforced block 10 having no stiffener is used. When a large number of blocks 10 and 10A are joined to each other, as shown in FIG. 6, the flat portions 11 to 14 of the blocks 10A and 10 facing each other are respectively inserted into the bolt holes Bh provided therein. Through the bolts B, the nuts N are screwed into the screw portions of the bolts B, respectively, and joined. The flat portions 11 to 14 of the reinforcing blocks 10 </ b> A facing the existing columns 2, the existing beams 3, and the existing floor 4 in the space S are formed by using an adhesive or an adhesive filler 17. 3 and the existing floor 4.

【0010】そして、図8に示すように、既存柱2、既
存梁3及び既存床4に面して配置した各補強ブロック1
0A及び筋かいとなる鎖線で示すV字状の位置に配置し
た各補強ブロック10Aの内空部内には、モルタル、コ
ンクリート等の充填材を充填する。なお、図8に示す例
における補強ブロック10Aの代りに無補強ブロック1
0を用い(すなわち、すべて無補強ブロック10を用い
る)、既存柱2、既存梁3及び既存床4に面して配置し
た各補強ブロック10A及び筋かいとなる鎖線で示すV
字状の位置に配置した各ブロック10の内空部内に、モ
ルタル、コンクリート等の充填材を充填するようにして
もよい。なお、ブロック10,10Aの縦方向の辺の長
さL1と横方向の辺の長さL2とは異なっていてもよい。
各平面部11〜14に設けるボルト孔の数及び位置は、
図示の例に限定するものではない。ブロック10,10
Aは、例えば、これを構成する鋼板(鉄板)の厚さを調
節することにより、その重量及び耐力を調節することが
できる。ボルトBとしては、例えば、短円柱型の角のな
い頭部を備えたものを用い、ナットNとしては、例え
ば、短円柱型の角のないものを用いる。このようにする
と、充填材を充填しないブロック10,11Aの内空部
を、書籍、小物等の収納空間として利用する際に、その
収納空間内に角張ったものがなくなり、使い勝手がよく
なる。
[0010] As shown in FIG. 8, each reinforcing block 1 disposed facing the existing column 2, the existing beam 3 and the existing floor 4.
Fillers such as mortar, concrete, and the like are filled into the inner space of each reinforcing block 10A disposed at 0A and at the V-shaped position indicated by a chain line that is a streak. Note that the non-reinforced block 1 is used instead of the reinforcing block 10A in the example shown in FIG.
0 (that is, all use the non-reinforced blocks 10), the reinforcing blocks 10A arranged facing the existing columns 2, the existing beams 3, and the existing floor 4, and V indicated by a chain line that is a line.
A filler such as mortar, concrete, or the like may be filled in the inner space of each block 10 arranged at the character-shaped position. It is also different from the longitudinal direction of the side length L 1 and lateral length of the side L 2 of the blocks 10, 10A.
The number and position of the bolt holes provided in each of the flat portions 11 to 14 are as follows:
It is not limited to the illustrated example. Blocks 10,10
A can adjust the weight and the proof stress by adjusting the thickness of the steel plate (iron plate) which comprises it, for example. As the bolt B, for example, a bolt having a short cylindrical head without a corner is used, and as the nut N, for example, a short cylinder without a corner is used. In this way, when the inner space of the blocks 10 and 11A that are not filled with the filler is used as a storage space for books, small articles, and the like, there is no angular space in the storage space, and the usability is improved.

【0011】[0011]

【発明の作用効果】この発明は、特許請求の範囲の欄に
記載した構成を備えることにより、次の(イ)〜(リ)
の効果を奏する。 (イ)請求項1記載の既存建築物の耐震補強法は、既存
柱、既存梁等を備えた既存建築物の耐震補強方法におい
て、鉄材にて構成された短い角筒体からなる多数のブロ
ックを、左側及び右側の既存柱と上側及び下側の既存梁
とで囲まれる空間内に、各ブロックの端面が略面一にな
るように、積み重ねて仕切りをつくり、この仕切りを構
成する多数のブロックの既存柱及び既存梁に面する部分
を既存柱及び既存梁に接合し、かつ隣接する多数のブロ
ツクの互いに対面する部分同士を互いに接合して耐力壁
とするから、施工性が向上し、工期が短縮され、コスト
ダウンが可能になる。また、鉄材にて構成された短い角
筒体からなるブロックを積み重ねで耐力壁をつくるか
ら、施工が容易で、鉄筋コンクリート造の耐震壁に比
べ、重量増加が少なく、基礎に与える影響が少ない。
The present invention has the following features (a) to (f) by providing the structure described in the claims.
Has the effect of (A) The seismic retrofitting method for an existing building according to claim 1 is a method for seismic retrofitting of an existing building provided with existing columns, existing beams, etc., in which a large number of blocks composed of short rectangular cylinders made of iron material are used. In the space surrounded by the existing columns on the left and right sides and the existing beams on the upper and lower sides, partitions are formed by stacking such that the end faces of the blocks are substantially flush with each other, and a large number of partitions constituting the partitions are formed. Since the part of the block facing the existing column and existing beam is joined to the existing column and existing beam, and the facing parts of many adjacent blocks are joined to each other to form a bearing wall, the workability is improved, The construction period is shortened, and costs can be reduced. In addition, since a load-bearing wall is formed by stacking blocks made of short rectangular cylinders made of iron material, the construction is easy, and the weight increase is small and the influence on the foundation is small as compared with the reinforced concrete shear wall.

【0012】(ロ)請求項2記載の既存建築物の耐震補
強法は、大きな力が作用する既存柱及び既存梁に面する
部分及び筋かいとなる対角線又は斜め線に対応する部分
に配した各ブロツクの内空部にモルタル等の充填材を充
填するから、充填材を充填したブロツクの耐力が増大し
て、大きな耐力の耐力壁を容易に構築できる。また、モ
ルタル等の充填材は、大きな力が作用するブロックの内
空部にしか充填しないから、鉄筋コンクリート造の耐震
壁に比べ、その重量増加が少なく(鉄筋コンクリート造
の耐震壁の15%程度)、基礎に与える影響が少ない。
なお、その内空部にモルタル等の充填材を充填しないブ
ロックの内空部は、書籍、小物等の収納空間として利用
することができる。 (ハ)請求項3記載の既存建築物の耐震補強法は、ブロ
ックとして、鉄材にて構成された短い角筒体の内空部内
にスチフナーを設けない無補強ブロックと、鉄材にて構
成された短い角筒体の内空部にスチフナーを設けた補強
ブロックとを用い、大きな力が作用する既存柱及び既存
梁に面する部分及び筋かいとなる対角線又は斜め線に対
応する部分には補強ブロックを配置し、その他の部分に
は無補強ブロックを配置するから、大きな力が作用する
耐力壁の部分を補強ブロックで構成することにより、所
望の耐力の耐力壁が容易に得られ、かつ耐力壁の総重量
を抑えることができる。
(B) In the seismic retrofitting method for an existing building according to the second aspect, a portion facing an existing column and an existing beam on which a large force acts and a portion corresponding to a diagonal line or an oblique line serving as a reinforcement are arranged. Since the filling material such as mortar is filled in the inner space of each block, the proof stress of the block filled with the filling material is increased, and a bearing wall having a large proof stress can be easily constructed. In addition, since the filler such as mortar fills only the inner space of the block where a large force acts, the weight increase is less than that of the reinforced concrete shear wall (about 15% of the reinforced concrete shear wall). Has little effect on the foundation.
The inner space of the block whose inner space is not filled with a filler such as mortar can be used as a storage space for books, small articles, and the like. (C) The seismic retrofitting method for an existing building according to the third aspect includes, as a block, a non-reinforced block that does not have a stiffener in the inner space of a short rectangular cylinder made of an iron material, and an iron material. Using a reinforcing block provided with a stiffener in the inner space of a short rectangular cylindrical body, a part facing an existing column and an existing beam on which a large force acts, and a part corresponding to a diagonal or diagonal line that is a crooked line Is arranged, and the non-reinforcement block is arranged in other portions. Therefore, by forming the load-bearing wall portion on which a large force acts by the reinforcing block, a load-bearing wall having a desired strength can be easily obtained, and Can reduce the total weight.

【0013】(ニ)請求項4に記載されているように、
補強ブロックの内空部にモルタル等の充填材を充填する
ようにすると、補強ブロックが配置される既存柱及び既
存梁に面する部分及び筋かいとなる対角線又は斜め線に
対応する部分の耐力壁の耐力をさらに増大されることが
できる。また、各補強ブロックの内空部にモルタル等の
充填材を充填しても、各無補強ブロックの内空部にはモ
ルタル等の充填材を充填しないから、前記(ロ)と同様
の作用効果を奏する。 (ホ)請求項5に記載されているように、多数のブロッ
クの既存柱及び既存梁に面する部分は接着剤又は接着性
を有する充填材を用いて既存柱及び既存梁に接合し、隣
接する多数のブロックの互いに対面する部分同士はボル
ト・ナットを用いて接合すると、現場での接合作業が、
簡単なボルト・ナットによる接合作業及び接着材等によ
る接合作業になり、耐力のバラツキの少ない耐力壁を容
易に構築することができる。そのため、既存建築物を利
用しながら、耐震補強工事を行なうことができる。
(D) As described in claim 4,
When the filling material such as mortar is filled in the inner space of the reinforcing block, the bearing wall of the portion facing the existing column and the existing beam where the reinforcing block is arranged and the portion corresponding to the diagonal line or the diagonal line serving as a reinforcement is provided. Can be further increased. Further, even if the inner space of each reinforcing block is filled with a filler such as mortar, the inner space of each unreinforced block is not filled with a filler such as mortar. To play. (E) As described in claim 5, the portions of the many blocks facing the existing columns and existing beams are bonded to the existing columns and existing beams using an adhesive or a filler having adhesive properties, and are adjacent to each other. The parts facing each other of many blocks to be joined together using bolts and nuts, the joining work on site,
A simple joining operation using bolts and nuts and a joining operation using an adhesive or the like can easily construct a bearing wall with less variation in the bearing strength. Therefore, seismic retrofitting work can be performed while using existing buildings.

【0014】(ヘ)請求項6記載の鉄製ブロックは、鉄
材にて構成された短い角筒体を、その上側の平面部と下
側の平面部とを平行し、かつ左側の平面部と右側の平面
部とを平行し、左側及び右側の平面部を上側及び下側の
平面部に対して直角に配し、左側及び右側の平面部の上
部を上側の平面部に連続させ、左側及び右側の平面部の
下部を下側の平面部に連続させて構成し、上側及び下側
の平面部の対応個所に少なくとも一つのボルト孔を設
け、左側及び右側の平面部の対応個所にも少なくとも一
つのボルト孔を設けて構成したから、互いに隣接するブ
ロック同士をそれらの平面部の設けたボルト孔にそれぞ
れボルトを通し、各ボルトのねじ部にナットをねじ込む
ことにより、容易に接合することができる。 (ト)請求項7記載の鉄製ブロックは、短い角筒体の左
側及び右側の平面部の上部を弧状面部を介して上側の平
面部に連続させ、左側及び右側の平面部の下部を弧状面
部を介して下側の平面部に連続させて構成したから、多
数のブロックを積み重ねる場合に、ブロックの角部が干
渉し合うことがない。また、鉄製ブロックを、長い矩形
の鋼板を曲げて製作することができ、その製作が容易に
なる。
(F) In the iron block according to claim 6, a short rectangular cylinder made of an iron material is formed by paralleling an upper flat portion and a lower flat portion, and a left flat portion and a right flat portion. The left and right planes are arranged at right angles to the upper and lower planes, the upper parts of the left and right planes are connected to the upper plane, and the left and right sides are parallelized. The lower portion of the flat portion is connected to the lower flat portion, at least one bolt hole is provided at a corresponding position of the upper and lower flat portions, and at least one bolt hole is provided at a corresponding portion of the left and right flat portions. Since two bolt holes are provided, blocks adjacent to each other can be easily joined by passing bolts through the bolt holes provided in the flat portions and screwing nuts into the threaded portions of the bolts. . (G) The iron block according to claim 7, wherein the upper portions of the left and right flat portions of the short rectangular cylinder are connected to the upper flat portion via the arcuate surface portion, and the lower portions of the left and right flat portions are arcuate surface portions. , So that the corners of the blocks do not interfere with each other when many blocks are stacked. Further, the iron block can be manufactured by bending a long rectangular steel plate, which facilitates the manufacture.

【0015】(チ)請求項8記載の鉄製ブロックは、短
い角筒体の内側の内空部内にその角筒体の中心軸線に対
して直角に鋼板製のスチフナーを配し、このスチフナー
の端を角筒体の平面部の内側面に溶接等の接合手段によ
り接合してブロックを構成したから、ブロック自体の剛
性及び耐力を容易に増大させることができる。 (リ)請求項9記載の鉄製ブロックは、短い角筒体の上
側、下側、左側及び右側の平面部の角筒体の中心軸線に
平行な2等分線上に少なくとも一つのボルト孔を設けた
から、ボルト孔の数を少なくしても、隣接するブロック
同士を強固に接合することができる。
(H) In the iron block according to the eighth aspect, a steel plate stiffener is arranged in the inner space inside the short rectangular cylinder at right angles to the center axis of the rectangular cylinder, and the end of the stiffener is provided. Is joined to the inner side surface of the flat portion of the rectangular cylindrical body by joining means such as welding, so that the rigidity and proof stress of the block itself can be easily increased. (I) The iron block according to claim 9 is provided with at least one bolt hole on a bisector parallel to the central axis of the rectangular cylinder in the upper, lower, left and right plane portions of the short rectangular cylinder. Therefore, even if the number of bolt holes is reduced, adjacent blocks can be firmly joined.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例の耐震補強方法に用いるスチフナーを設
けない鉄製ブロックの正面図
FIG. 1 is a front view of an iron block that is not provided with a stiffener and that is used in a method of reinforcing earthquake resistance according to an embodiment.

【図2】図1に示す鉄製ブロックの平面図FIG. 2 is a plan view of the iron block shown in FIG. 1;

【図3】図1及び図2に示す鉄製ブロックの内空部にモ
ルタルを充填したものを縦断して示す側面図
FIG. 3 is a side view of the iron block shown in FIG. 1 and FIG.

【図4】実施例の耐震補強方法に用いるスチフナーを設
けた鉄製ブロックの正面図
FIG. 4 is a front view of an iron block provided with a stiffener used in the seismic retrofitting method of the embodiment.

【図5】図4に示す鉄製ブロックの平面図FIG. 5 is a plan view of the iron block shown in FIG. 4;

【図6】図4及び図5に示す鉄製ブロック同士の接合部
を横断して示す平面図
FIG. 6 is a plan view traversing a joint between the iron blocks shown in FIGS. 4 and 5;

【図7】図4及び図5に示す鉄製ブロックの内空部にモ
ルタルを充填したものを縦断して示す側面図
FIG. 7 is a side view of the iron block shown in FIGS. 4 and 5 in which an inner space portion is filled with mortar, which is cut longitudinally.

【図8】実施例の耐震補強方法により補強された既存
柱、既存梁等からなる架構の正面図
FIG. 8 is a front view of a frame including existing columns, existing beams, and the like reinforced by the seismic retrofitting method of the embodiment.

【符号の説明】[Explanation of symbols]

1 既存建築物 2 既存柱 3 既存梁 4 既存床 10 無補強ブロック 10A 補強ブロック 11〜14 平面部 11a〜14a 内側面 15 弧状面部 16 スチフナー 16a 切欠き 16b 辺部 Bh ボルト孔 B ボルト Mt モルタル N ナット DESCRIPTION OF SYMBOLS 1 Existing building 2 Existing pillar 3 Existing beam 4 Existing floor 10 Non-reinforcement block 10A Reinforcement block 11-14 Plane part 11a-14a Inner side surface 15 Arc-shaped surface part 16 Stiffener 16a Notch 16b Side Bh bolt hole B bolt Mt mortar N nut

───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮内 靖昌 千葉県印西市大塚一丁目5番地1 株式会 社竹中工務店技術研究所内 (72)発明者 野上 邦宏 東京都中央区銀座八丁目21番1号 株式会 社竹中工務店東京本店内 (72)発明者 大谷 馨 東京都中央区銀座八丁目21番1号 株式会 社竹中工務店東京本店内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasumasa Miyauchi 1-5-1, Otsuka, Inzai City, Chiba Prefecture Inside the Technical Research Institute, Takenaka Corporation (72) Inventor Kunihiro Nogami 8-21-1, Ginza, Chuo-ku, Tokyo No. Takenaka Corporation Tokyo Main Store (72) Inventor Kaoru Otani 8-21 Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store

Claims (9)

【特許請求の範囲】[Claims] 【請求項1】既存柱、既存梁等を備えた既存建築物の耐
震補強方法において、鉄材にて構成された短い角筒体か
らなる多数のブロックを、左側及び右側の既存柱と上側
及び下側の既存梁とで囲まれる空間内に、各ブロックの
端面が略面一になるように、積み重ねて仕切りをつく
り、この仕切りを構成する多数のブロックの既存柱及び
既存梁に面する部分を既存柱及び既存梁に接合し、かつ
隣接する多数のブロツクの互いに対面する部分同士を互
いに接合して耐力壁とすることを特徴とする既存建築物
の耐震補強方法。
1. A method of seismic reinforcement of an existing building having existing columns, existing beams and the like, wherein a large number of blocks consisting of short rectangular cylinders made of iron material are combined with existing columns on the left and right sides and above and below. In the space surrounded by the existing beams on the side, partitions are created by stacking them so that the end faces of the blocks are substantially flush with each other. A seismic retrofitting method for an existing building, which is joined to an existing pillar and an existing beam, and a portion of the many blocks facing each other facing each other is joined to each other to form a bearing wall.
【請求項2】鉄材にて構成された短い角筒体からなる多
数のブロックを、左側及び右側の既存柱と上側及び下側
の既存梁とで囲まれる空間内に、各ブロックの端面が略
面一になるように、積み重ねて仕切りをつくり、この仕
切りを構成する多数のブロックのうちの既存柱及び既存
梁に面する部分を既存柱及び既存梁に接合し、かつ隣接
する多数のブロツクの互いに対面する部分同士を互いに
接合して耐力壁とする既存柱、既存梁等を備えた既存建
築物の耐震補強方法において、大きな力が作用する既存
柱及び既存梁に面する部分及び筋かいとなる対角線又は
斜め線に対応する部分に配した各ブロツクの内空部にモ
ルタル等の充填材を充填することを特徴とする既存建築
物の耐震補強方法。
2. An end face of each block is substantially enclosed in a space surrounded by existing columns on the left and right sides and existing beams on the upper and lower sides. A partition is made by stacking them so that they are flush with each other, the part of the many blocks that make up this partition, facing the existing columns and beams, is joined to the existing columns and beams, and a number of adjacent blocks are connected. In the seismic retrofitting method for existing buildings with existing columns, beams, etc., which are joined to each other by connecting the facing parts to each other, the parts and braces facing the existing columns and beams with large forces A seismic retrofitting method for an existing building, wherein a filler such as mortar is filled in an inner space of each block disposed at a portion corresponding to a diagonal or diagonal line.
【請求項3】鉄材にて構成された短い角筒体からなる多
数のブロックを、左側及び右側の既存柱と上側及び下側
の既存梁とで囲まれる空間内に、各ブロックの端面が略
面一になるように、積み重ねて仕切りをつくり、この仕
切りを構成する多数のブロックのうちの既存柱及び既存
梁に面する部分を既存柱及び既存梁に接合し、かつ隣接
する多数のブロツクの互いに対面する部分同士を互いに
接合して耐力壁とする既存柱、既存梁等を備えた既存建
築物の耐震補強方法において、ブロックとして、鉄材に
て構成された短い角筒体の内空部内にスチフナーを設け
ない無補強ブロックと、鉄材にて構成された短い角筒体
の内空部にスチフナーを設けた補強ブロックとを用い、
大きな力が作用する既存柱及び既存梁に面する部分及び
筋かいとなる対角線又は斜め線に対応する部分には補強
ブロックを配置し、その他の部分には無補強ブロックを
配置することを特徴とする既存建築物の耐震補強方法。
3. An end face of each block is substantially enclosed in a space surrounded by left and right existing columns and upper and lower existing beams in a large number of blocks each formed of a short rectangular cylinder made of an iron material. A partition is made by stacking them so that they are flush with each other, the part of the many blocks that make up this partition, facing the existing columns and beams, is joined to the existing columns and beams, and a number of adjacent blocks are connected. In the seismic retrofitting method for existing buildings with existing columns, beams, etc., which are jointed parts facing each other to form a load-bearing wall, as a block, in the inner space of a short rectangular cylinder made of iron material Using a non-reinforced block without a stiffener and a reinforcing block with a stiffener in the inner space of a short rectangular cylinder made of iron material,
Reinforcement blocks are placed on the parts facing the existing columns and beams where large forces act and on the diagonal lines or diagonal lines that become braces, and unreinforced blocks are placed on the other parts. Seismic retrofitting method for existing buildings.
【請求項4】補強ブロックの内空部にモルタル等の充填
材を充填することを特徴とする請求項3記載の既存建築
物の耐震補強方法。
4. The method of claim 3, wherein the inner space of the reinforcing block is filled with a filler such as mortar.
【請求項5】多数のブロックの既存柱及び既存梁に面す
る部分は接着剤又は接着性を有する充填材を用いて既存
柱及び既存梁に接合し、隣接する多数のブロックの互い
に対面する部分同士はボルト・ナットを用いて接合する
ことを特徴とする請求項1〜4のいずれかに記載の既存
建築物の耐震補強方法。
5. A portion of a plurality of blocks facing an existing column and an existing beam is bonded to the existing column and an existing beam using an adhesive or an adhesive filler, and a portion of the adjacent many blocks facing each other. The seismic reinforcement method for an existing building according to any one of claims 1 to 4, wherein the members are joined using bolts and nuts.
【請求項6】鉄材にて構成された短い角筒体を、その上
側の平面部と下側の平面部とを平行し、かつ左側の平面
部と右側の平面部とを平行し、左側及び右側の平面部を
上側及び下側の平面部に対して直角に配し、左側及び右
側の平面部の上部を上側の平面部に連続させ、左側及び
右側の平面部の下部を下側の平面部に連続させて構成
し、上側及び下側の平面部の対応個所に少なくとも一つ
のボルト孔を設け、かつ左側及び右側の平面部の対応個
所にも少なくとも一つのボルト孔を設けてブロックを構
成したことを特徴とする鉄製ブロック。
6. A short rectangular cylinder made of an iron material, wherein an upper flat portion and a lower flat portion are parallel to each other, and a left flat portion and a right flat portion are parallel to each other. The right plane is arranged at right angles to the upper and lower planes, the upper part of the left and right planes is continuous with the upper plane, and the lower part of the left and right planes is the lower plane The block is constituted by providing at least one bolt hole at a corresponding position on the upper and lower flat portions, and providing at least one bolt hole at a corresponding portion on the left and right flat portions. An iron block characterized by:
【請求項7】短い角筒体の左側及び右側の平面部の上部
を弧状面部を介して上側の平面部に連続させ、左側及び
右側の平面部の下部を弧状面部を介して下側の平面部に
連続させてブロックを構成したことを特徴とする請求項
6記載の鉄製ブロック。
7. The upper portion of the left and right flat portions of the short rectangular cylinder is connected to the upper flat portion via the arcuate surface portion, and the lower portion of the left and right flat portions is the lower flat surface via the arcuate surface portion. 7. The iron block according to claim 6, wherein the block is formed continuously with the portion.
【請求項8】短い角筒体の内側の内空部内にその角筒体
の中心軸線に対して直角に鋼板製のスチフナーを配し、
このスチフナーの端を角筒体の平面部の内側面に溶接等
の接合手段により接合してブロックを構成したことを特
徴とする請求項6又は7記載の鉄製ブロック。
8. A stiffener made of a steel plate is arranged in the inner space inside the short rectangular cylinder at right angles to the center axis of the rectangular cylinder,
8. The iron block according to claim 6, wherein an end of the stiffener is joined to an inner surface of a flat portion of the rectangular cylindrical body by joining means such as welding to form a block.
【請求項9】短い角筒体の上側、下側、左側及び右側の
平面部の角筒体の中心軸線に平行な2等分線上に少なく
とも一つのボルト孔を設けたことを特徴とする請求項6
〜8のいずれかに記載の鉄製のブロック。
9. A short rectangular cylinder provided with at least one bolt hole on a bisector parallel to the central axis of the rectangular cylinder in the upper, lower, left and right plane portions. Item 6
An iron block according to any one of claims 1 to 8.
JP24786597A 1997-08-28 1997-08-28 Seismic reinforcement method for existing buildings Expired - Fee Related JP3766941B2 (en)

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JPH1171907A true JPH1171907A (en) 1999-03-16
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007016547A (en) * 2005-07-11 2007-01-25 Taisei Corp Reinforced wall
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JP2007270598A (en) * 2006-03-06 2007-10-18 Taisei Corp Structural wall
JP4590373B2 (en) * 2006-03-06 2010-12-01 大成建設株式会社 Structural wall
JP2007239289A (en) * 2006-03-08 2007-09-20 Shimizu Corp Earthquake resisting wall structure, and construction method for earthquake resisting wall
JP2007303164A (en) * 2006-05-11 2007-11-22 Sumitomo Forestry Co Ltd Wall surface daylighting house
JP2008095430A (en) * 2006-10-13 2008-04-24 Shimizu Corp Quake resisting wall structure
JP2008101347A (en) * 2006-10-17 2008-05-01 Takenaka Komuten Co Ltd Earthquake-resisting wall structure
JP2009114646A (en) * 2007-11-02 2009-05-28 Taisei Corp Reinforcement structure
JP2010001632A (en) * 2008-06-19 2010-01-07 Takenaka Komuten Co Ltd Earthquake-resisting wall forming method
JP2013204270A (en) * 2012-03-28 2013-10-07 Grape Co Ltd Reinforcement structure of building
JP2016102363A (en) * 2014-11-28 2016-06-02 株式会社大林組 Reinforcement block

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