JPH09158326A - Composite beam - Google Patents

Composite beam

Info

Publication number
JPH09158326A
JPH09158326A JP32533495A JP32533495A JPH09158326A JP H09158326 A JPH09158326 A JP H09158326A JP 32533495 A JP32533495 A JP 32533495A JP 32533495 A JP32533495 A JP 32533495A JP H09158326 A JPH09158326 A JP H09158326A
Authority
JP
Japan
Prior art keywords
steel
column
composite
concrete
steel frame
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.)
Pending
Application number
JP32533495A
Other languages
Japanese (ja)
Inventor
Toshiyuki Fukumoto
Yukio Hayashi
Keiichi Miyamoto
Yasuhiro Nakajima
Fumitoshi Sakuramoto
Motomi Takahashi
Nobuaki Yoshioka
康宏 中島
伸明 吉岡
圭一 宮本
幸雄 林
文敏 桜本
敏之 福元
元美 高橋
Original Assignee
Kajima Corp
鹿島建設株式会社
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 Kajima Corp, 鹿島建設株式会社 filed Critical Kajima Corp
Priority to JP32533495A priority Critical patent/JPH09158326A/en
Publication of JPH09158326A publication Critical patent/JPH09158326A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To simplify a structure, to increase rigidity and to improve the workability of connection with a column. SOLUTION: In a composite beam joined with a steel-framed column and a steel-pipe (concrete) column, and end section 2a connected to the column 1 is formed only of a steel frame 3 consisting of H-steel or I-steel. A shear reinforcement 4 is arranged around the steel frame 3 composed of H-steel or I-steel in an adjacent section 2b continuing to the end section 2a while these steel frame and shear reinforcement are covered with concrete 5, and the shear reinforcement 4 is disposed between upper and lower flange materials 3a excepting the web material 3b of the steel frame 3 made up of H-steel at a central section 2c continuing to the adjacent section 2b while these flange materials and shear reinforcement are covered with concrete 5.

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】本発明は、建物などの骨組を
構成する鉄骨柱や鋼管柱に接合する合成梁に関するもの
である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite beam joined to a steel frame column or a steel pipe column which constitutes a frame of a building or the like.
【0002】[0002]
【従来の技術】鉄骨柱やコンクリート充填鋼管(CF
T)柱に接合する梁として、SRC(鉄骨鉄筋コンクリ
ート)梁やSC(コンクリートで被覆した鉄骨)梁など
の合成梁があり、SRC梁では内部に主筋である梁軸筋
が存在し、その端部の処理方法としてこれを柱の鋼管面
に直接溶接して定着したり、梁端部H鋼に鋼板を溶接
し、この鋼板に梁軸筋を溶接定着している。
2. Description of the Related Art Steel columns and concrete filled steel pipes (CF
T) There are composite beams such as SRC (steel-framed reinforced concrete) beams and SC (steel frame covered with concrete) beams as beams to be joined to columns. In SRC beams, there are beam axis reinforcements that are the main reinforcements, and the ends As a method of treating the above, this is directly welded and fixed to the steel pipe surface of the column, or a steel plate is welded to the beam end H steel and the beam axis is welded and fixed to this steel plate.
【0003】[0003]
【発明が解決しようとする課題】SRC梁では内部に主
筋である梁鉄筋があるため、その定着処理を必要とし、
柱との接合の施工性がよくなく、また、断面構造もH鋼
に主筋や補強筋が配され、これらコンクリートでこれら
が一体化されるものとなっているため、複雑になってい
る。
Since an SRC beam has a beam rebar, which is a main bar, inside the SRC beam, it needs to be fixed.
The workability of joining to the column is not good, and the cross-sectional structure is complicated because the H steel is provided with main bars and reinforcing bars and these are integrated with these concretes.
【0004】コンクリートで鉄骨を被覆するだけのSC
梁は構造は簡単で、柱との接合の施工性もよいが、コン
クリートのひび割れなどの問題がある。
SC only covering the steel frame with concrete
The beam has a simple structure and is easy to connect to the column, but it has problems such as cracking of concrete.
【0005】本発明の目的は前記従来例の不都合を解消
し、構造的に簡単で剛性にも優れ、柱との接合の施工性
もよい合成梁を提供することにある。
An object of the present invention is to eliminate the disadvantages of the conventional example, and to provide a composite beam that is structurally simple and excellent in rigidity and has good workability for joining to a column.
【0006】[0006]
【課題を解決するための手段】本発明は前記目的を達成
するため、鉄骨柱や鋼管(コンクリート)柱に接合する
合成梁で、柱に接合する端部をH形鋼またはI形鋼の鉄
骨のみで形成し、該端部に続く近傍部はH形鋼またはI
形鋼の鉄骨の周囲に剪断補強筋を配するとともにこれら
をコンクリートで被覆し、この近傍部に続く中央部分は
H形鋼またはI形鋼の鉄骨のウェブ材を除いた上下のフ
ランジ材間に剪断補強筋を配すとともにこれらをコンク
リートで被覆すること、および、端部に続く近傍部とこ
れに続く中央部分との境界部及びその近傍部では、剪断
補強筋を密の間隔で配すこと、または、端部に続く近傍
部とこれに続く中央部分との境界部にX形配筋を配する
ことを要旨とするものである。
In order to achieve the above-mentioned object, the present invention is a composite beam which is joined to a steel column or a steel pipe (concrete) column, and an end portion which is joined to the column is an H-shaped steel or I-shaped steel frame. Formed by only H-shaped steel or I
Shear reinforcing bars are arranged around the steel frame of the section steel and these are covered with concrete, and the central part following this vicinity is between the upper and lower flange materials excluding the steel web material of the H-section steel or the I-section steel. Placing shear reinforcements and covering them with concrete, and arranging the shear reinforcements at close intervals at the boundary between the neighborhood that follows the end and the central portion that follows this and the neighborhood. Alternatively, it is a gist to arrange an X-shaped reinforcing bar at a boundary portion between a neighborhood portion following the end portion and a central portion following the end portion.
【0007】請求項1記載の本発明によれば、鉄骨と剪
断補強筋とコンクリートとで梁を構成し、主筋は存在せ
ず、さらに中央部分は鉄骨のウェブ材もないから、構造
が簡単となる。また、前記のように主筋が存在しないの
で主筋の定着処理も不要となり、さらに、柱への接合部
は鉄骨のみで形成されるから施工性がよい。なお、鉄骨
のウェブ材は端部には存在するので柱への接合はこのウ
ェブ材も利用することができる。
According to the first aspect of the present invention, since the beam is composed of the steel frame, the shear reinforcing bar and the concrete, the main bar does not exist, and the central portion does not have the steel web material, the structure is simple. Become. Further, since the main reinforcement does not exist as described above, the fixing treatment of the main reinforcement is not necessary, and further, since the joint portion to the column is formed of only the steel frame, the workability is good. Since the steel web material is present at the end, this web material can also be used for joining to the column.
【0008】請求項2、請求項3記載の本発明によれ
ば、前記作用に加えて、ウェブ材とフランジ材とを有す
る梁端部の近傍部と、ウェブ材を抜いた中央部との境界
部分では、剪断補強筋を密の間隔で配することにより、
または、この部分にX形配筋を配することにより、剪断
力が大きい場合でも、力の伝達がスムーズにできる。
According to the second and third aspects of the present invention, in addition to the above-mentioned action, the boundary between the vicinity of the beam end having the web member and the flange member and the central portion where the web member is removed is defined. In the part, by arranging the shear reinforcement bars at close intervals,
Alternatively, by disposing an X-shaped bar in this portion, the force can be smoothly transmitted even when the shearing force is large.
【0009】[0009]
【発明の実施の形態】以下、図面について本発明の実施
形態を詳細に説明する。図1は本発明の合成梁の柱に接
合した状態の実施形態を示す正面図で、図中1は柱を示
し、該柱は鉄骨柱やコンクリート充填鋼管(CFT)柱
で構成する。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the present invention in a state of being joined to a column of a composite beam, in which 1 is a column, and the column is composed of a steel frame column or a concrete filled steel pipe (CFT) column.
【0010】図中2は、この柱1に接合する合成梁で、
柱1に接合する部分である端部2aをH形鋼またはI形
鋼の鉄骨3のみで構成し、この端部2aに続く近傍部2
bは図2にも示すようにフランジ材3aとウェブ材3b
とよりなるH形鋼またはI形鋼の鉄骨3の周囲に剪断補
強筋4を配し、これら鉄骨3と剪断補強筋4とをコンク
リート5で一体に被覆した。なお、剪断補強筋4と鉄骨
3の接合は、剪断補強筋4をフランジ材3aに溶接して
もよい。このように溶接することで剪断補強筋4がシア
コネクターとして作用し鉄骨3とコンクリートの付着性
も向上する。
Reference numeral 2 in the figure is a composite beam to be joined to the column 1.
The end portion 2a, which is a portion to be joined to the column 1, is composed only of the H-shaped steel or I-shaped steel frame 3, and the neighboring portion 2 following the end portion 2a.
b is a flange material 3a and a web material 3b as shown in FIG.
Shear reinforcing bars 4 were arranged around the steel frame 3 of H-shaped steel or I-shaped steel consisting of and the steel frame 3 and the shear reinforcing bar 4 were integrally covered with concrete 5. The shear reinforcing bar 4 and the steel frame 3 may be joined by welding the shear reinforcing bar 4 to the flange member 3a. By welding in this way, the shear reinforcing bar 4 acts as a shear connector, and the adhesion between the steel frame 3 and concrete is also improved.
【0011】近傍部2bに続く中央部2cは、図3にも
示すように鉄骨3のウェブ材3bを抜いて上下のフラン
ジ材3aのみとし、この上下のフランジ材3aの間に掛
け渡されるようにして周囲に剪断補強筋4を配し、コン
クリート5でフランジ材3aと剪断補強筋4との一体化
を図る。
As shown in FIG. 3, the central portion 2c following the neighboring portion 2b is formed by removing the web member 3b of the steel frame 3 to form only the upper and lower flange members 3a, so that the central portion 2c can be hung between the upper and lower flange members 3a. Then, the shear reinforcing bar 4 is arranged around the periphery, and the flange member 3 a and the shear reinforcing bar 4 are integrated with the concrete 5.
【0012】剪断補強筋4の配設ピッチは、図2のよう
に梁の全ての部位で均等なものとしてもよいが、剪断力
が大きい場合に力の伝達がスムーズになされるように、
図4に示すように近傍部2bと中央部2cとの境界部及
びその近傍では間隔を密にしてもよい。
The arrangement pitch of the shear reinforcing bars 4 may be uniform in all parts of the beam as shown in FIG. 2, but in order to smoothly transmit the force when the shearing force is large,
As shown in FIG. 4, the interval may be made close at the boundary between the neighboring portion 2b and the central portion 2c and in the vicinity thereof.
【0013】あるいは、図5に示すように、境界部に位
置する剪断補強筋4にさらにX形配筋6を取り付けて、
このX形配筋6により剪断補強筋4の間の力の伝達がス
ムーズになされるようにしてもよい。
Alternatively, as shown in FIG. 5, an X-shaped bar 6 is further attached to the shear reinforcing bar 4 located at the boundary,
The X-shaped bar arrangement 6 may be configured to smoothly transmit the force between the shear reinforcing bars 4.
【0014】以上のように構成される合成梁2を柱1に
接合するには、合成梁2の端部2aを構成する鉄骨3と
柱1を図6のようにガセットプレート7を介してボルト
8で接合する。この場合、鉄骨3のみを柱1に接合すれ
ばよいから、施工性がよい。また、ウェブ材3bを接合
部材として利用できる。
In order to join the composite beam 2 constructed as described above to the column 1, the steel frame 3 and the column 1 constituting the end portion 2a of the composite beam 2 are bolted via the gusset plate 7 as shown in FIG. Join at 8. In this case, since only the steel frame 3 needs to be joined to the column 1, the workability is good. Further, the web material 3b can be used as a joining member.
【0015】あるいは、図7のようにフランジ添え継板
9を用いてボルト8で接合してもよく、この場合も鉄骨
3のみを柱1に接合すればよいから、施工性がよい。
Alternatively, as shown in FIG. 7, the flange joint plate 9 may be used for joining with the bolts 8. In this case also, since only the steel frame 3 needs to be joined to the column 1, workability is good.
【0016】[0016]
【発明の効果】以上述べたように本発明の合成梁は、主
筋がないから構造的に簡単で定着処理も不要となって、
柱との接合の施工性がよく、剪断補強筋により剛性にも
優れるものである。
As described above, since the composite beam of the present invention has no main bar, it is structurally simple and does not require fixing treatment.
It has good workability for joining to columns and excellent rigidity due to shear reinforcement.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の合成梁の実施形態を示す柱に接合した
状態の正面図である。
FIG. 1 is a front view showing an embodiment of a composite beam of the present invention in a state of being joined to a column.
【図2】本発明の合成梁の実施形態を示す図1のA−A
線断面図である。
FIG. 2 is an AA of FIG. 1 showing an embodiment of a composite beam of the present invention.
It is a line sectional view.
【図3】本発明の合成梁の実施形態を示す図1のB−B
線断面図である。
FIG. 3 is a BB of FIG. 1 showing an embodiment of a composite beam of the present invention.
It is a line sectional view.
【図4】本発明の合成梁の要部を示す正面図である。FIG. 4 is a front view showing a main part of a composite beam of the present invention.
【図5】本発明の合成梁の要部を示す他の例の正面図で
ある。
FIG. 5 is a front view of another example showing the main part of the composite beam of the present invention.
【図6】本発明の合成梁の柱との接合部の一例を示す正
面図である。
FIG. 6 is a front view showing an example of a joint portion of the composite beam of the present invention with a column.
【図7】本発明の合成梁の柱との接合部の他の例を示す
正面図である。
FIG. 7 is a front view showing another example of the joint portion of the composite beam with the column of the present invention.
【符号の説明】[Explanation of symbols]
1…柱 2…合成梁 2a…端部 2b…近傍部 2c…中央部 3…鉄骨 3a…フランジ材 3b…ウェブ材 4…剪断補強筋 5…コンクリート 6…X形配筋 7…ガセットプレー
ト 8…ボルト 9…フランジ添え継
DESCRIPTION OF SYMBOLS 1 ... Pillar 2 ... Synthetic beam 2a ... End part 2b ... Neighboring part 2c ... Central part 3 ... Steel frame 3a ... Flange material 3b ... Web material 4 ... Shear reinforcing bar 5 ... Concrete 6 ... X-shaped bar arrangement 7 ... Gusset plate 8 ... Bolt 9 ... Flange joint plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 元美 東京都港区元赤坂一丁目2番7号 鹿島建 設株式会社内 (72)発明者 吉岡 伸明 東京都港区元赤坂一丁目3番8号 鹿島建 設株式会社東京支店内 (72)発明者 桜本 文敏 東京都調布市飛田給二丁目19番1号 鹿島 建設株式会社技術研究所内 (72)発明者 宮本 圭一 東京都調布市飛田給二丁目19番1号 鹿島 建設株式会社技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Motomi Takahashi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Within Kashima Construction Co., Ltd. (72) Nobuaki Yoshioka 1-3-3 Moto-Akasaka, Minato-ku, Tokyo No. 8 Inside Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Fumitoshi Sakuramoto No. 19-1 Tobita Supply, Chofu City, Tokyo Metropolitan Research Institute, Kashima Construction Co., Ltd. (72) Inventor Keiichi Miyamoto Two Tobita Supply, Chofu City, Tokyo No. 19-1 Kashima Construction Co., Ltd. Technical Research Institute

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 鉄骨柱や鋼管(コンクリート)柱に接合
    する合成梁で、柱に接合する端部をH形鋼またはI形鋼
    の鉄骨のみで形成し、該端部に続く近傍部はH形鋼また
    はI形鋼の鉄骨の周囲に剪断補強筋を配するとともにこ
    れらをコンクリートで被覆し、この近傍部に続く中央部
    分はH形鋼またはI形鋼の鉄骨のウェブ材を除いた上下
    のフランジ材間に剪断補強筋を配すとともにこれらをコ
    ンクリートで被覆することを特徴とする合成梁。
    1. A composite beam joined to a steel frame column or a steel pipe (concrete) column, wherein an end portion joined to the column is formed only of an H-section steel or an I-section steel frame, and a portion adjacent to the end section is formed of H-shaped steel. Shear reinforcements are arranged around the steel frame of I-section steel or I-section steel and these are covered with concrete, and the central part following this vicinity is the upper and lower parts excluding the steel web material of H-section steel or I-section steel. A composite beam characterized by arranging shear reinforcing bars between flange materials and covering them with concrete.
  2. 【請求項2】 端部に続く近傍部とこれに続く中央部分
    との境界部及びその近傍部では、剪断補強筋を密の間隔
    で配す請求項1記載の合成梁。
    2. The composite beam according to claim 1, wherein the shear reinforcing bars are arranged at close intervals at the boundary between the vicinity of the end portion and the central portion following the end portion and in the vicinity thereof.
  3. 【請求項3】 端部に続く近傍部とこれに続く中央部分
    との境界部にX形配筋を配する請求項1記載の合成梁。
    3. The composite beam according to claim 1, wherein an X-shaped reinforcing bar is arranged at a boundary portion between a neighborhood portion following the end portion and a central portion following the neighborhood portion.
JP32533495A 1995-12-14 1995-12-14 Composite beam Pending JPH09158326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32533495A JPH09158326A (en) 1995-12-14 1995-12-14 Composite beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32533495A JPH09158326A (en) 1995-12-14 1995-12-14 Composite beam

Publications (1)

Publication Number Publication Date
JPH09158326A true JPH09158326A (en) 1997-06-17

Family

ID=18175654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32533495A Pending JPH09158326A (en) 1995-12-14 1995-12-14 Composite beam

Country Status (1)

Country Link
JP (1) JPH09158326A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11264189A (en) * 1998-03-17 1999-09-28 Daiwa House Ind Co Ltd Constructing method of steel-framed and steel reinforced concrete composite building
CN103074941A (en) * 2012-12-24 2013-05-01 北京工业大学 Assembly type recycled concrete node with steel bar truss girders at end parts and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11264189A (en) * 1998-03-17 1999-09-28 Daiwa House Ind Co Ltd Constructing method of steel-framed and steel reinforced concrete composite building
CN103074941A (en) * 2012-12-24 2013-05-01 北京工业大学 Assembly type recycled concrete node with steel bar truss girders at end parts and manufacturing method thereof
CN103074941B (en) * 2012-12-24 2015-11-04 北京工业大学 Assembling regeneration concrete node and the practice of steel bar girder beam are contained in a kind of end

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