JP2008163630A - Joint structure of reinforced concrete column and steel beam - Google Patents

Joint structure of reinforced concrete column and steel beam Download PDF

Info

Publication number
JP2008163630A
JP2008163630A JP2006353943A JP2006353943A JP2008163630A JP 2008163630 A JP2008163630 A JP 2008163630A JP 2006353943 A JP2006353943 A JP 2006353943A JP 2006353943 A JP2006353943 A JP 2006353943A JP 2008163630 A JP2008163630 A JP 2008163630A
Authority
JP
Japan
Prior art keywords
column
steel
reinforced concrete
steel beam
concrete
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
JP2006353943A
Other languages
Japanese (ja)
Other versions
JP4943141B2 (en
Inventor
Kazuhiro Watanabe
一弘 渡邊
Hiromichi Ito
博通 伊藤
Akira Kurosawa
明 黒澤
Noboru Hamato
昇 浜戸
Kimiya Hamada
公也 浜田
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.)
PS Mitsubishi Construction Co Ltd
Original Assignee
PS Mitsubishi Construction 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 PS Mitsubishi Construction Co Ltd filed Critical PS Mitsubishi Construction Co Ltd
Priority to JP2006353943A priority Critical patent/JP4943141B2/en
Publication of JP2008163630A publication Critical patent/JP2008163630A/en
Application granted granted Critical
Publication of JP4943141B2 publication Critical patent/JP4943141B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Joining Of Building Structures In Genera (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To increase the bearing strength of column concretes on the upper and lower sides of flanges by effectively restraining them by a simple structure, well store the column concretes, and prevent the column concretes from being ruptured and peeled and fallen. <P>SOLUTION: In this joint structure of a reinforcement concrete column 1 and a steel frame 2, columns are made of reinforced concrete and a beam is made of steel and the steel beam 2 extends through a column-to-beam joint. Vertical ribs 9 are so installed at the upper and lower parts of the upper and lower flanges 2a of the steel beam 2 along the edges 2a of the flanges as to be opposed and parallel to each other. The column concretes are restrained from three directions of the vertical ribs 9 and the lateral reinforcement 11 of the column portion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、柱を鉄筋コンクリート造、梁を鉄骨造とした複合構造骨組みの建物の柱梁仕口構造に関するものである。   The present invention relates to a column beam joint structure of a building having a composite structure in which a column is reinforced concrete and a beam is steel.

柱と梁により構成される建築骨組みにおいて、地震時に安定した降伏機構を形成するためには、１階柱脚および最上階柱頭を除いては、一般に梁端部に降伏ヒンジを生じせしめる必要がある。   In order to form a stable yield mechanism in the event of an earthquake in a building frame composed of columns and beams, it is generally necessary to generate a yield hinge at the beam end, except for the first-level column base and the top-level column head. .

しかし、柱を鉄筋コンクリート造、梁を鉄骨造とする建築骨組みでは、図７、図８に示すように、鉄筋コンクリート柱１である柱幅に対しては鉄骨梁２である梁幅が比較的狭いため、地震時には鉄骨梁２のてこ作用で梁フランジ２ａの上下部分の柱コンクリートに過大な圧縮力が作用することによりコンクリートの圧縮破壊（支圧破壊）が発生する可能性がある。   However, in an architectural framework in which the columns are reinforced concrete and the beams are steel, the beam width of the steel beam 2 is relatively narrow compared to the column width of the reinforced concrete column 1, as shown in FIGS. In the event of an earthquake, there is a possibility that concrete compressive failure (bearing failure) may occur due to excessive compressive force acting on the column concrete in the upper and lower portions of the beam flange 2a due to the lever action of the steel beam 2.

さらに、梁端部に降伏ヒンジが形成される時および形成された後の地震力による多数回の繰り返し荷重により、梁の降伏領域が柱梁仕口内部まで伸展することがある。   Furthermore, the yield region of the beam may extend to the inside of the column beam joint when the yield hinge is formed at the end of the beam and due to repeated repeated loads due to the seismic force after the hinge is formed.

前記の支圧破壊あるいは梁の降伏領域の柱梁仕口内部への伸展が生じると、建物の地震力に対する抵抗能力が著しく低下することになり好ましくない。   If the bearing failure or the extension of the yield region of the beam into the column beam joint occurs, the resistance to the seismic force of the building is significantly reduced, which is not preferable.

このような梁フランジ上下の柱コンクリートの破壊の防止および柱梁仕口のせん断破壊防止のために、鉄筋コンクリート柱と鉄骨梁との仕口部を補強する技術は、数多く開発され発表されており、その一例としては補強材を設ける方法であり、コンクリート内に埋設される補強材、コンクリート外面を被覆する補強材等各種のものがある。   Many technologies have been developed and announced to reinforce the joints between reinforced concrete columns and steel beams in order to prevent destruction of column concrete above and below the beam flange and to prevent shear failure of column beam joints. One example is a method of providing a reinforcing material, such as a reinforcing material embedded in concrete or a reinforcing material covering the outer surface of the concrete.

また、鉄骨梁に補強材を付加する技術もあり、例えば、図９に示すような、鉄骨梁の柱コンクリート内にリブを設ける。鉄骨梁２が鉄筋コンクリート柱に埋設される部分に柱の一方の外面から他方の外面まで鉄骨梁２の上下面に鉄骨長手方向リブ２２を突出して取付け、そのリブ２２の両端に鉄骨梁２の横断面方向に補強板２１を梁２及びリブ２２に取付け、これを柱コンクリート内に埋設する。   There is also a technique for adding a reinforcing material to a steel beam. For example, ribs are provided in column concrete of a steel beam as shown in FIG. A steel longitudinal rib 22 is attached to the upper and lower surfaces of the steel beam 2 so as to protrude from one outer surface of the column to the other outer surface of the steel beam 2 where the steel beam 2 is embedded in the reinforced concrete column. The reinforcing plate 21 is attached to the beam 2 and the rib 22 in the surface direction, and this is embedded in the column concrete.

さらに、下記特許文献では、図１０に示すように、Ｈ形鋼の鉄骨梁２のフランジの上下面に、鉄筋コンクリート柱１と鉄骨梁２とが交差する鉄筋コンクリート柱の表面の部分に、リブ４が設けられたＬ形の補強板３を取付けた。
特開平８−２７８９４号公報（鉄筋コンクリート柱と鉄骨梁の接合構造） Further, in the following patent document, as shown in FIG. 10, ribs 4 are provided on the upper and lower surfaces of the flange of the H-shaped steel beam 2 on the surface of the reinforced concrete column where the reinforced concrete column 1 and the steel beam 2 intersect. The provided L-shaped reinforcing plate 3 was attached.
JP-A-8-27894 (bonded structure of reinforced concrete column and steel beam)

前記図９のものは、鉄筋コンクリート柱のコンクリート打設前の状態を示し、主筋２３、フープ筋２４が露出している。この技術は鉄骨梁と柱との結合を強化するものであるが、柱のコンクリートの剥落に対して効果が少ない。   The thing of the said FIG. 9 shows the state before concrete placement of a reinforced concrete pillar, and the main reinforcement 23 and the hoop reinforcement 24 are exposed. This technique reinforces the connection between the steel beam and the column, but has little effect on the concrete peeling of the column.

また、図１０に示す特許文献１のものは、鉄骨梁２の抜け出し防止を主眼としたものであるが、リブ４が設けられたＬ形の補強板３は鉄筋コンクリート柱の表面の部分に設置されるので、柱コンクリート内部での拘束ではなく、また、鉄筋コンクリート柱１の面から突出するので柱梁接合部の施工の支障になるおそれがあり、納まりがすっきりとせず、好ましくない。   10 is mainly intended to prevent the steel beam 2 from coming out, but the L-shaped reinforcing plate 3 provided with the ribs 4 is installed on the surface portion of the reinforced concrete column. Therefore, it is not constrained inside the column concrete, and since it protrudes from the surface of the reinforced concrete column 1, there is a possibility that the construction of the column beam joint portion may be hindered.

さらに、この特許文献１のものも前記図９のものと同様に鉄骨梁と柱との結合を強化するものであるが、柱のコンクリートの剥落に対して効果が少ない。   Furthermore, although the thing of this patent document 1 also strengthens the coupling | bonding of a steel beam and a column similarly to the thing of the said FIG. 9, there are few effects with respect to peeling of the concrete of a pillar.

図１１は前記特許文献１の改良として、梁幅と同幅以上で梁フランジ２ａの上下に配する縦リブ状の補強鋼板５は、鉄筋コンクリート柱１の面外に位置させ、さらに、仕口部の柱の全周に補強鋼板６を配するとともに補強鋼板５の曲げ補強のためのリブ４および鉄骨梁２の上下フランジ２ａ間に梁成と同高の補強鋼板７を配している。   FIG. 11 shows an improvement of the above-mentioned Patent Document 1, in which a longitudinal rib-shaped reinforcing steel plate 5 that is equal to or greater than the beam width and is arranged above and below the beam flange 2a is positioned outside the surface of the reinforced concrete column 1, and A reinforcing steel plate 6 is arranged on the entire circumference of the column, and a reinforcing steel plate 7 having the same height as the beam is arranged between the rib 4 for bending reinforcement of the reinforcing steel plate 5 and the upper and lower flanges 2a of the steel beam 2.

前記特許文献１と同じく補強鋼板５と補強鋼板６とは上下の面位置を同じくして、これを鉄筋コンクリート柱１の面位置に接合させることで、柱のコンクリートの圧壊および剥落を防止しようとする。   Similar to Patent Document 1, the reinforcing steel plate 5 and the reinforcing steel plate 6 have the same upper and lower surface positions and are joined to the surface position of the reinforced concrete column 1 so as to prevent crushing and peeling of the column concrete. .

しかし、この図１１に示す仕口構造では、補強鋼板５〜７という３種類の補強鋼板を組み入れるもので、複雑な構造となり、鉄骨の加工コストが高騰する。   However, the joint structure shown in FIG. 11 incorporates three types of reinforcing steel plates, namely reinforcing steel plates 5 to 7, resulting in a complicated structure, which increases the processing cost of the steel frame.

また、前記特許文献１と同じく前記補強鋼板５は鉄筋コンクリート柱１の面から突出するので柱梁接合部の施工の支障になるおそれがあり、納まりがすっきりとせず、好ましくない。   Moreover, since the said reinforcing steel plate 5 protrudes from the surface of the reinforced concrete pillar 1 like the said patent document 1, there exists a possibility that it may become the hindrance of the construction of a column beam junction part, and a housing | casing is not clear and is not preferable.

本発明の目的は前記従来例の不都合を解消し、簡略構造でありながら、フランジ上下の柱コンクリートを効果的に拘束することで、コンクリートの支圧強度を上昇させることができ、また、収まりがよく、しかも、柱のコンクリートの剥落をも防止できる鉄筋コンクリート柱と鉄骨梁の仕口構造を提供することにある。   The object of the present invention is to eliminate the inconveniences of the conventional examples described above, and, while having a simple structure, by effectively constraining the column concrete above and below the flange, the bearing strength of the concrete can be increased and the fit is reduced. It is also desirable to provide a reinforced concrete column and steel beam joint structure that can prevent the concrete from peeling off.

前記目的を達成するため、請求項１記載の本発明は、柱を鉄筋コンクリート造、梁を鉄骨造により構成される骨組みで、鉄骨梁は柱梁仕口を貫通する鉄筋コンクリート柱と鉄骨梁の仕口構造において、鉄骨梁上下フランジの上下部に縦リブを前記フランジ縁に沿って、かつ相互に対向させて平行になるように設け、柱コンクリートをこの縦リブと柱部分の横補強筋の３方向から拘束することを要旨とするものである。   In order to achieve the above-mentioned object, the present invention according to claim 1 is a frame comprising a reinforced concrete structure for a column and a steel structure for a beam, and the steel beam is a reinforced concrete column and steel beam connection that penetrates the column beam connection. In the structure, vertical ribs are provided at the upper and lower parts of the upper and lower flanges of the steel beam so as to be parallel to each other along the flange edge and facing each other. The gist is to restrain from.

請求項１記載の本発明によれば、鉄骨梁上下フランジの上下部に縦リブを配することで柱梁仕口内部の鉄骨梁フランジの引張耐力を梁部分のフランジの引張耐力より大きくさせることができ、梁上下の柱コンクリートの支圧破壊に対して、梁フランジ上下に設ける縦リブと柱部分の横補強筋の３方向からの拘束により破壊を防止することができる。   According to the first aspect of the present invention, the tensile strength of the steel beam flange inside the column beam joint is made larger than the tensile strength of the flange of the beam portion by arranging vertical ribs on the upper and lower portions of the steel beam upper and lower flanges. Therefore, against the bearing pressure failure of the column concrete above and below the beam, the fracture can be prevented by restraining the vertical ribs provided above and below the beam flange and the lateral reinforcement of the column part from three directions.

また、縦リブを前記フランジ縁に沿って、かつ相互に対向させて平行になるように設けるので、前後が開放され閉鎖障害壁とならないので、コンクリートの打設時の充填性を阻害することはない。   In addition, since the vertical ribs are provided along the flange edge and so as to be parallel to each other, the front and rear are opened and do not become a blocking obstacle wall. Absent.

さらに、鉄骨梁が柱梁仕口を貫通する形式の柱梁仕口においては、柱梁仕口にコンクリートを打設する時には、鉄骨フランジ下部に空気溜りが生じやすいため、空気抜き穴を設ける必要があるが、フランジ上下部に設ける縦リブは、空気抜き穴によるフランジの断面欠損を補うことも兼ねる。   Furthermore, in the case of a column beam joint in which the steel beam penetrates the column beam joint, when concrete is placed in the column beam joint, it is easy to cause air accumulation at the bottom of the steel flange, so it is necessary to provide an air vent hole. However, the vertical ribs provided on the upper and lower portions of the flange also serve to compensate for the cross-sectional defect of the flange due to the air vent hole.

これに加えて、横補強筋は柱部分より多量の横補強筋を配することになり、柱のコアコンクリートの圧壊および剥落防止にも効果的である。   In addition to this, the lateral reinforcing bars are provided with a larger amount of lateral reinforcing bars than the column portion, which is effective in preventing collapse and peeling of the core concrete of the column.

請求項２記載の本発明は、梁貫通部の柱面に梁幅と同幅以上の補強鋼板を配設することを要旨とするものである。   The gist of the present invention described in claim 2 is that a reinforcing steel plate having a width equal to or greater than the beam width is disposed on the column surface of the beam penetration portion.

請求項２記載の本発明によれば、補強鋼板の存在は、柱梁仕口部分のコンクリートの拘束に効果があるとともに、施工時には型枠を兼ねることができ、この部分の複雑な型枠の加工・取り付けを容易にすることができる。   According to the second aspect of the present invention, the presence of the reinforcing steel plate is effective in constraining the concrete of the column beam joint portion, and can also serve as a mold during construction. Processing and mounting can be facilitated.

請求項３記載の本発明は、鉄骨梁上下フランジの上下部の縦リブは、柱断面内で梁鉄骨が交差する部分においては、直角に交わるように設けられることを要旨とするものである。   The gist of the present invention described in claim 3 is that the vertical ribs at the upper and lower portions of the upper and lower flanges of the steel beam are provided so as to intersect at a right angle in the portion where the beam steel frame intersects within the column cross section.

請求項３記載の本発明によれば、鉄骨梁２が鉄筋コンクリート柱１の仕口で交差する場合でも、縦リブを邪魔にならずにコンパクトに設けることができる。また、縦リブが直角に交わることで、、柱のコアコンクリートの圧壊および剥落防止にも効果的である。   According to the third aspect of the present invention, even when the steel beam 2 intersects at the joint of the reinforced concrete column 1, the vertical rib can be provided in a compact manner without obstructing. In addition, since the vertical ribs intersect at right angles, it is also effective in preventing collapse and peeling of the core concrete of the pillar.

請求項４記載の本発明は、柱の構造をプレキャスト鉄筋コンクリート造とすることを要旨とするものである。   The gist of the present invention described in claim 4 is that the column structure is precast reinforced concrete.

建設現場において柱梁仕口にコンクリートを打設する場合において、柱梁仕口の型枠を別途用意し柱のコンクリート打設とは別に打設するなどの工程が必要であったが、請求項４記載の本発明によれば、柱梁仕口を含んだ工場生産もしくは建設現場で生産するプレキャスト部材とすることにより、高品質な部材を提供し、かつ建設工期を短縮することができる。   In the case of placing concrete in a column beam joint at a construction site, a process such as preparing a form for the column beam joint separately and placing it separately from the concrete casting of the column was necessary. According to the fourth aspect of the present invention, a high-quality member can be provided and the construction period can be shortened by using a precast member produced at a factory or construction site including a column beam joint.

また、階高が高く柱の長さが長くなることが要求される建築物の場合、柱のコンクリート打設時には型枠に作用するコンクリートの側圧が大きくなるため、型枠の養生等にコストが掛かるため、柱をプレキャスト構造とした方が合理的と成る場合がある。   In addition, in the case of a building that requires a high floor height and a long column length, the concrete side pressure acting on the formwork becomes large when the concrete is placed on the pillar, so the cost for curing the formwork is high. For this reason, it may be more rational to use a precast structure for the column.

請求項５記載の本発明は、柱の構造をプレキャスト鉄筋コンクリート造とし、柱内部にアンボンドとしたＰＣ鋼材を配置したことを要旨とするものである。   The gist of the present invention described in claim 5 is that the column structure is precast reinforced concrete, and the PC steel material unbonded is disposed inside the column.

請求項５記載の本発明によれば、前記作用に加えて、柱を柱梁仕口を含んだプレキャスト部材とする場合に、柱内部にアンボンドのＰＣ鋼材を配し、柱建方時にＰＣ鋼材に緊張力を与えることにより、施工時に必要な柱の曲げ剛性を付与することができる。   According to this invention of Claim 5, in addition to the said effect | action, when making a column into the precast member containing the column beam joint, unbonded PC steel material is arranged inside the column, and the PC steel material at the time of column construction By applying tension to the column, it is possible to give the column bending rigidity required during construction.

請求項６記載の本発明は、柱の構造をプレキャストプレストレストコンクリート構造とすることを要旨とするものである。   The gist of the present invention described in claim 6 is that the column structure is a precast prestressed concrete structure.

請求項６記載の本発明によれば、柱をプレストレストコンクリート構造とすることにより、従来の建設現場でのコンクリートの打設を極力少なくすることで、工期の短縮などによる建設コストの削減を可能とすることができる。さらに、所要のプレストレス力を作用させるため柱の曲げひび割れ耐力が上昇するとともに、曲げひび割れが発生した後も地震後にはプレストレス力の効果により曲げひび割れが閉じることを期待でき、残留ひび割れ幅は通常の鉄筋コンクリート造柱に比べ極度に小さくなるため、耐久性も向上する。   According to the sixth aspect of the present invention, it is possible to reduce the construction cost by shortening the construction period, etc., by reducing the placing of the concrete at the conventional construction site as much as possible by making the column a prestressed concrete structure. can do. Furthermore, the bending cracking strength of the column is increased to apply the required prestressing force, and after the occurrence of bending cracking, it can be expected that the bending cracking will close due to the effect of the prestressing force, and the residual cracking width is Durability is improved because it is extremely small compared to ordinary reinforced concrete columns.

請求項７記載の本発明は、柱の構造をプレキャストプレストレストコンクリート構造とし、１つの部材重量を小さくして必要個数のプレキャスト部材をプレストレス力により連結したことを要旨とするものである。   The gist of the present invention described in claim 7 is that the structure of the pillar is a precast prestressed concrete structure, and a required number of precast members are connected by a prestressing force by reducing the weight of one member.

請求項７記載の本発明によれば、前記の柱の長さが長く柱をプレキャスト部材とする場合では、プレキャスト部材１個の重量が非常に重たくなるため、プレキャスト部材を分割して施工すれば、揚重機の必要容量を小さくできるなど、建設コストを下げることができる。   According to this invention of Claim 7, when the length of the said pillar is long and a pillar is used as a precast member, since the weight of one precast member becomes very heavy, if the precast member is divided and applied, Construction cost can be reduced by reducing the required capacity of the lifting machine.

以上述べたように本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造は、簡略構造でありながら、フランジ上下の柱コンクリートを効果的に拘束することで、コンクリートの支圧強度を上昇させることができ、また、収まりがよく、しかも、柱のコンクリートの剥落をも防止できるものである。   As described above, the joint structure of reinforced concrete columns and steel beams according to the present invention is a simple structure, but can effectively increase the bearing strength of the concrete by effectively constraining the column concrete above and below the flange. In addition, it fits well and can also prevent the concrete from peeling off.

以下、図面について本発明の実施の形態を詳細に説明する。図１は本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造の１実施形態を示す斜視図、図２は同上平面図で、柱を鉄筋コンクリート造、梁を鉄骨造により構成される骨組みを採用し、鉄骨梁２は柱梁仕口を貫通する場合である。鉄筋コンクリート柱１である柱幅に対しては鉄骨梁２である梁幅が比較的狭い。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a joint structure of a reinforced concrete column and a steel beam according to the present invention, FIG. 2 is a plan view of the same as above, and adopts a framework composed of a reinforced concrete column and a beam steel frame, The steel beam 2 is a case where it penetrates the column beam joint. The beam width of the steel beam 2 is relatively narrow with respect to the column width of the reinforced concrete column 1.

本発明は、柱梁仕口内部の鉄骨梁２のフランジ２ａの引張耐力を梁部分のフランジの引張耐力より大きくさせたものであり、その手段として、鉄骨梁２の上下フランジ２ａの上下部に縦リブ９を前記フランジ２ａの縁に沿って、かつ相互に対向させて平行になるように設けた。   In the present invention, the tensile strength of the flange 2a of the steel beam 2 inside the column beam joint is made larger than the tensile strength of the flange of the beam portion. The longitudinal ribs 9 are provided so as to be parallel to each other along the edge of the flange 2a and facing each other.

縦リブ９の高さは、梁成の７５〜１２０／１０００程度とする。   The height of the vertical rib 9 is about 75 to 120/1000 of the beam formation.

鉄骨梁２が直交する場合は、この縦リブ９は鉄骨梁交差部角部において相互に直角に設けるものとする。当該直角の角部は衝合させずに隙間を開けてもよい。   When the steel beam 2 is orthogonal, the vertical ribs 9 are provided at right angles to each other at the corner of the steel beam crossing portion. The right-angled corner may be opened without abutting.

図中１３はフランジ２ａに設けた空気抜き穴で、柱梁仕口にコンクリートを打設する時に鉄骨フランジ下部に空気溜りが生じやすいための対処のものであるがその存在でフランジの断面欠損を補うことがないように、最小数（図示では２個）を平行する縦リブ９間に設けた。   In the figure, reference numeral 13 denotes an air vent hole provided in the flange 2a, which is a countermeasure for easily causing an air pocket at the lower part of the steel flange when placing concrete in the column beam joint. In order to prevent this, a minimum number (two in the drawing) was provided between the parallel vertical ribs 9.

図中１０は柱主筋であるが、この柱主筋１０に巻回するフープ筋である横補強筋１１を前記縦リブ９の側方に配設し、柱コンクリートをこの縦リブ９と柱部分の横補強筋１１の３方向から拘束するようにした。   In the figure, reference numeral 10 denotes a column main reinforcing bar. A horizontal reinforcing bar 11 which is a hoop line wound around the column main reinforcing bar 10 is disposed on the side of the vertical rib 9, and column concrete is formed between the vertical rib 9 and the column portion. The lateral reinforcing bars 11 are restrained from three directions.

この横補強筋１１は柱の他の部分の横補強筋８の増設としてなるものである。   This lateral reinforcing bar 11 is an extension of the lateral reinforcing bar 8 in the other part of the column.

また、鉄筋コンクリート柱１に対する鉄骨梁２の梁貫通部の柱面に梁幅と同幅以上の補強鋼板１２を配設した。   Further, a reinforcing steel plate 12 having a width equal to or greater than the beam width is disposed on the column surface of the beam penetration portion of the steel beam 2 with respect to the reinforced concrete column 1.

以上が本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造であるが、次に、そのような仕口構造を有する柱を鉄筋コンクリート造、梁を鉄骨造により構成される骨組みの建て方について説明する。   The above is the joint structure of a reinforced concrete column and a steel beam according to the present invention. Next, a method for constructing a frame composed of a column having such a joint structure made of reinforced concrete and a beam made of steel will be described.

図５は各種の場合を示すもので、（ａ）は鉄筋コンクリート柱１を現場造成、すなわち、場所打ちとした場合、（ｂ）はプレキャスト鉄筋コンクリート造とした場合のうち、柱は従来のプレキャストコンクリート部材とするとともに、柱梁仕口部分もプレキャスト化した場合、（ｃ）は柱梁仕口一体型の場合である。   FIG. 5 shows various cases. (A) shows a case where the reinforced concrete column 1 is constructed on site, that is, cast in place, and (b) shows a case where a precast reinforced concrete structure is used. When the column beam joint portion is also precast, (c) is a case of a column beam joint integrated type.

このように、柱梁仕口を含んだ工場生産もしくは建設現場で生産するプレキャスト部材とすることにより、高品質な部材を提供し、かつ建設工期を短縮することができる。   Thus, by using a precast member produced at a factory or construction site including a column beam joint, a high-quality member can be provided and the construction period can be shortened.

さらに、（ｃ）の場合、柱の構造をプレキャスト鉄筋コンクリート造とするだけでなく、図示は省略するが、柱内部にアンボンドとしたＰＣ鋼材を配置してもよい。このようにすれば、柱建方時に施工上必要な曲げ剛性を付与して自立させることにより、柱の建て方を容易とすることができる。   Furthermore, in the case of (c), not only is the pillar structure made of precast reinforced concrete, but illustration is omitted, but a PC steel material that is unbonded may be disposed inside the pillar. If it does in this way, how to build a pillar can be made easy by giving the bending rigidity required for construction at the time of pillar construction, and becoming independent.

また、鉄筋コンクリート柱１の構造をプレキャストプレストレストコンクリート構造としてもよい。   Moreover, it is good also considering the structure of the reinforced concrete pillar 1 as a precast prestressed concrete structure.

（ｄ）は、鉄筋コンクリート柱１の構造をプレキャストプレストレストコンクリート造とする場合に、１つの部材重量を小さくした場合である。これら必要個数のプレキャスト部材をプレストレス力により連結し、柱の建て方を容易とした。   (D) is a case where the weight of one member is reduced when the structure of the reinforced concrete column 1 is a precast prestressed concrete structure. The necessary number of precast members were connected by a prestressing force to facilitate the building of the pillars.

本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造の１実施形態を示す斜視図である。It is a perspective view which shows one Embodiment of the joint structure of a reinforced concrete pillar and steel beam of this invention. 本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造の１実施形態を示す平面図である。It is a top view which shows one Embodiment of the joint structure of a reinforced concrete pillar and steel beam of this invention. 本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造の１実施形態を示す側面図である。It is a side view which shows one Embodiment of the joint structure of a reinforced concrete pillar and steel beam of this invention. 本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造で使用する鉄骨梁の要部の側面図である。It is a side view of the principal part of the steel beam used in the joint structure of a reinforced concrete pillar and steel beam of the present invention. 本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造での建方を示す説明図である。It is explanatory drawing which shows the construction method in the joint structure of the reinforced concrete pillar and steel beam of this invention. 本発明の鉄筋コンクリート柱と鉄骨梁の仕口構造のコンクリートの拘束を示す説明図である。It is explanatory drawing which shows the restraint of the concrete of the joint structure of the reinforced concrete pillar and steel beam of this invention. 梁鉄骨のてこ作用を示す説明図である。It is explanatory drawing which shows the lever effect | action of a beam steel frame. 梁鉄骨フランジ上下部柱コンクリートの支圧破壊を示す説明図である。It is explanatory drawing which shows the bearing failure of a beam steel flange upper and lower column concrete. 従来例の第１例を示す斜視図である。It is a perspective view which shows the 1st example of a prior art example. 従来例の第２例を示す斜視図である。It is a perspective view which shows the 2nd example of a prior art example. 従来例の第３例を示す斜視図である。It is a perspective view which shows the 3rd example of a prior art example.

符号の説明Explanation of symbols

１…鉄筋コンクリート柱 ２…鉄骨梁
２ａ…フランジ ３…補強板
４…リブ ５…補強鋼板
６…補強鋼板 ７…補強鋼板
８…横補強筋 ９…縦リブ
１０…柱主筋 １１…横補強筋
１２…補強鋼板 １３…空気抜き穴
２１…補強板 ２２…リブ
２３…主筋 ２４…フープ筋 DESCRIPTION OF SYMBOLS 1 ... Reinforced concrete column 2 ... Steel beam 2a ... Flange 3 ... Reinforcement plate 4 ... Rib 5 ... Reinforced steel plate 6 ... Reinforced steel plate 7 ... Reinforced steel plate 8 ... Lateral reinforcement 9 ... Vertical rib 10 ... Column main reinforcement 11 ... Lateral reinforcement 12 ... Reinforcing steel plate 13 ... Air vent hole 21 ... Reinforcing plate 22 ... Rib 23 ... Main bar 24 ... Hoop bar

Claims (7)

柱を鉄筋コンクリート造、梁を鉄骨造により構成される骨組みで、鉄骨梁は柱梁仕口を貫通する鉄筋コンクリート柱と鉄骨梁の仕口構造において、鉄骨梁上下フランジの上下部に縦リブを前記フランジ縁に沿って、かつ相互に対向させて平行になるように設け、柱コンクリートをこの縦リブと柱部分の横補強筋の３方向から拘束することを特徴とする鉄筋コンクリート柱と鉄骨梁の仕口構造。   It is a frame composed of reinforced concrete columns and steel frames. Steel beams are reinforced concrete columns and steel beam joints that penetrate the column beam joints. A joint between reinforced concrete columns and steel beams, which is provided along the edges and parallel to each other so that the column concrete is constrained from three directions: the longitudinal ribs and the lateral reinforcement of the column part. Construction. 梁貫通部の柱面に梁幅と同幅以上の補強鋼板を配設する請求項１記載の鉄筋コンクリート柱と鉄骨梁の仕口構造。   The joint structure of a reinforced concrete column and a steel beam according to claim 1, wherein a reinforcing steel plate having a width equal to or greater than the beam width is disposed on the column surface of the beam penetration portion. 鉄骨梁上下フランジの上下部の縦リブは、柱断面内で梁鉄骨が交差する部分においては、直角に交わるように設けられる請求項１または請求項２記載の鉄筋コンクリート柱と鉄骨梁の仕口構造。   The joint structure of a reinforced concrete column and a steel beam according to claim 1 or 2, wherein the vertical ribs at the upper and lower parts of the upper and lower flanges of the steel beam are provided so as to intersect at a right angle at a portion where the beam steel frame intersects in the column cross section. . 柱の構造をプレキャスト鉄筋コンクリート造とする請求項１ないし請求項３のいずれかに記載の鉄筋コンクリート柱と鉄骨梁の仕口構造。   The joint structure of a reinforced concrete column and a steel beam according to any one of claims 1 to 3, wherein the column structure is a precast reinforced concrete structure. 柱の構造をプレキャスト鉄筋コンクリート造とし、柱内部にアンボンドとしたＰＣ鋼材を配置した請求項１ないし請求項４のいずれかに記載の鉄筋コンクリート柱と鉄骨梁の仕口構造。   The joint structure of a reinforced concrete column and a steel beam according to any one of claims 1 to 4, wherein the column structure is a precast reinforced concrete structure and an unbonded PC steel material is disposed inside the column. 柱の構造をプレキャストプレストレストコンクリート構造とした請求項１ないし請求項４のいずれかに記載の鉄筋コンクリート柱と鉄骨梁の仕口構造。   The joint structure of a reinforced concrete column and a steel beam according to any one of claims 1 to 4, wherein the column structure is a precast prestressed concrete structure. 柱の構造をプレキャストプレストレストコンクリート構造とし、１つの部材重量を小さくして必要個数のプレキャスト部材をプレストレス力により連結した請求項６記載の鉄筋コンクリート柱と鉄骨梁の仕口構造。   The joint structure of a reinforced concrete column and a steel beam according to claim 6, wherein the column structure is a precast prestressed concrete structure, and a required number of precast members are connected by a prestressing force while reducing the weight of one member.
JP2006353943A 2006-12-28 2006-12-28 Joint structure of reinforced concrete columns and steel beams Active JP4943141B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006353943A JP4943141B2 (en) 2006-12-28 2006-12-28 Joint structure of reinforced concrete columns and steel beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006353943A JP4943141B2 (en) 2006-12-28 2006-12-28 Joint structure of reinforced concrete columns and steel beams

Publications (2)

Publication Number Publication Date
JP2008163630A true JP2008163630A (en) 2008-07-17
JP4943141B2 JP4943141B2 (en) 2012-05-30

Family

ID=39693455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006353943A Active JP4943141B2 (en) 2006-12-28 2006-12-28 Joint structure of reinforced concrete columns and steel beams

Country Status (1)

Country Link
JP (1) JP4943141B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995755A (en) * 2012-12-12 2013-03-27 西安建筑科技大学 RCS (reinforced concrete structure) combined node with continuous webs and partially-cut flanges
JP2013133620A (en) * 2011-12-26 2013-07-08 Ohbayashi Corp Junction structure of concrete column and steel frame beam, and joint method
WO2014156072A1 (en) * 2013-03-27 2014-10-02 株式会社フジタ Hybrid structure and construction method for same
CN109680811A (en) * 2019-03-01 2019-04-26 中建四局第三建筑工程有限公司 A kind of prefabricated steel column node connecting structure of assembled architecture and its construction method
CN109797862A (en) * 2018-09-12 2019-05-24 北京工业大学 A kind of novel pre-stressed connecting node applied to assembled ridge burr support cable dome structure
CN110528704A (en) * 2019-08-21 2019-12-03 中衡设计集团股份有限公司 A kind of node being connect for girder steel with reinforced column
CN110644806A (en) * 2019-10-22 2020-01-03 东南大学 External prestress assembly type concrete frame-energy dissipation support reinforcing structure of existing structure
CN114960404A (en) * 2022-06-11 2022-08-30 中建五局土木工程有限公司 Temporary hinge structure of steel cap beam and prefabricated stand column in construction of asymmetrically distributed viaduct and construction method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6148697B2 (en) * 2015-06-23 2017-06-14 大和ハウス工業株式会社 Formwork

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941544A (en) * 1982-08-31 1984-03-07 清水建設株式会社 Ramen prefabricated structure
JPH06316962A (en) * 1993-05-10 1994-11-15 Mitsui Constr Co Ltd Structure for joining column and beam
JPH08246547A (en) * 1995-03-08 1996-09-24 Sumitomo Constr Co Ltd Pole-beam junction structure
JPH10325212A (en) * 1997-05-26 1998-12-08 Fudo Kenken Kk Precast column body for constituting steel encased reinforced concrete column
JP2006249816A (en) * 2005-03-11 2006-09-21 Toda Constr Co Ltd Joint structure of reinforced concrete column and steel framed beam and its joint method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941544A (en) * 1982-08-31 1984-03-07 清水建設株式会社 Ramen prefabricated structure
JPH06316962A (en) * 1993-05-10 1994-11-15 Mitsui Constr Co Ltd Structure for joining column and beam
JPH08246547A (en) * 1995-03-08 1996-09-24 Sumitomo Constr Co Ltd Pole-beam junction structure
JPH10325212A (en) * 1997-05-26 1998-12-08 Fudo Kenken Kk Precast column body for constituting steel encased reinforced concrete column
JP2006249816A (en) * 2005-03-11 2006-09-21 Toda Constr Co Ltd Joint structure of reinforced concrete column and steel framed beam and its joint method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013133620A (en) * 2011-12-26 2013-07-08 Ohbayashi Corp Junction structure of concrete column and steel frame beam, and joint method
CN102995755A (en) * 2012-12-12 2013-03-27 西安建筑科技大学 RCS (reinforced concrete structure) combined node with continuous webs and partially-cut flanges
CN102995755B (en) * 2012-12-12 2014-07-16 西安建筑科技大学 RCS (reinforced concrete structure) combined node with continuous webs and partially-cut flanges
WO2014156072A1 (en) * 2013-03-27 2014-10-02 株式会社フジタ Hybrid structure and construction method for same
JP2014190040A (en) * 2013-03-27 2014-10-06 Fujita Corp Hybrid structure and the construction method therefor
CN105102734A (en) * 2013-03-27 2015-11-25 株式会社藤田 Hybrid structure and construction method for same
CN109797862A (en) * 2018-09-12 2019-05-24 北京工业大学 A kind of novel pre-stressed connecting node applied to assembled ridge burr support cable dome structure
CN109680811A (en) * 2019-03-01 2019-04-26 中建四局第三建筑工程有限公司 A kind of prefabricated steel column node connecting structure of assembled architecture and its construction method
CN109680811B (en) * 2019-03-01 2024-05-28 中建四局第三建筑工程有限公司 Prefabricated steel column node connection structure for assembled building and construction method thereof
CN110528704A (en) * 2019-08-21 2019-12-03 中衡设计集团股份有限公司 A kind of node being connect for girder steel with reinforced column
CN110644806A (en) * 2019-10-22 2020-01-03 东南大学 External prestress assembly type concrete frame-energy dissipation support reinforcing structure of existing structure
CN114960404A (en) * 2022-06-11 2022-08-30 中建五局土木工程有限公司 Temporary hinge structure of steel cap beam and prefabricated stand column in construction of asymmetrically distributed viaduct and construction method

Also Published As

Publication number Publication date
JP4943141B2 (en) 2012-05-30

Similar Documents

Publication Publication Date Title
JP4943141B2 (en) Joint structure of reinforced concrete columns and steel beams
JP2017179997A (en) Column-beam joint structure and construction method therefor
KR101098693B1 (en) Reinforced Concrete Frame Structure having High Flexibility in Beam-Column Joint
JP4866641B2 (en) Precast pillar manufacturing method, precast pillar construction method
JP2008266910A (en) Projection structure of anchorage or deviator of tendon, and construction method therefor
JP4945428B2 (en) Reinforced structure
KR102374295B1 (en) Composite beam and floor structure
JP6082580B2 (en) Floor structure
JP7391172B2 (en) Joint structure between concrete-filled steel pipe column and reinforced concrete slab
JP2009215748A (en) Composite structure beam, and building structure having composite structure beam
JP2009046829A (en) Aseismatic reinforcing wall
JP4238991B2 (en) Seismic isolation structure on the middle floor of the building
JP7050542B2 (en) Mixed structure of reinforced concrete columns and steel beams
JP2016216899A (en) Earthquake-proof wall structure
JP2017014713A (en) Existing concrete structure reinforcement structure
KR20190124561A (en) Connecting sturcture between column and wide beam and floor structure
KR20090070398A (en) Joint construction method of cft column &amp; rc member using reinforcement assembly
JP6422803B2 (en) Column base joint structure
JP7062853B2 (en) Seismic retrofitting structure
JP2011021379A (en) Reinforcing method for existing building and reinforcing structure
KR101688440B1 (en) Reinforcement Member for Beam, Beam Equipped with the Reinforcement Member, Construction Structure Using the Beam
JP2003129676A (en) Method of reinforcing concrete frame
KR200392009Y1 (en) Composite frame for Slab-form
JP2007040049A (en) Antiseismic reinforcing structure for existing building
JP7270095B2 (en) Mixed structure of reinforced concrete columns and steel beams

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090817

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110802

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110927

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111124

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120228

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120229

R150 Certificate of patent or registration of utility model

Ref document number: 4943141

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150309

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250