JPH03290552A - Steel sheet concrete compound beam - Google Patents
Steel sheet concrete compound beamInfo
- Publication number
- JPH03290552A JPH03290552A JP9092990A JP9092990A JPH03290552A JP H03290552 A JPH03290552 A JP H03290552A JP 9092990 A JP9092990 A JP 9092990A JP 9092990 A JP9092990 A JP 9092990A JP H03290552 A JPH03290552 A JP H03290552A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- steel plate
- concrete
- precast concrete
- column
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 239000004567 concrete Substances 0.000 title claims abstract description 22
- 150000001875 compounds Chemical class 0.000 title abstract 3
- 239000011178 precast concrete Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 20
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004079 fireproofing Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はプレキャストコンクリートと鋼板とを複合化
して構成される、鋼板コンクリート複合梁に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a steel plate concrete composite beam constructed by combining precast concrete and steel plates.
従来のプレキャストコンクリート梁は通常、コンクリー
ト梁の全階面分の断面積を持って形成されるため重量が
大きく、架設時の施工性に難があり、また柱間への架設
時には設置上の受は材の突設が必要となる。加えて梁貫
通上、制約が多い等の問題がある。Conventional precast concrete beams are usually formed with a cross-sectional area equal to the entire floor of the concrete beam, making them heavy and difficult to construct during erection. requires protruding material. In addition, there are many restrictions on beam penetration.
一方、鉄骨梁は架設後、耐火被覆作業を必要とするため
施工に手間がかかり、またフランジの剛性が乏しいため
変形や撓みの問題が常に伴う。On the other hand, steel beams require fireproof coating after erection, which takes time and effort, and the flanges have poor rigidity, which always causes problems with deformation and bending.
この発明はこうした両構造のそれぞれの難点に着目して
なされたもので、双方の問題を同時に解決する構造の梁
を新たに提案しようとするものである。This invention has been made by focusing on the drawbacks of these two structures, and aims to propose a new beam structure that solves both problems at the same time.
本発明ではウェブを鋼板で、両側のフランジをプレキャ
ストコンクリートでそれぞれ形成することにより、プレ
キャストコンクリート造単独の場合より重量を軽量化し
、施工性を高めると同時に、鉄骨造単独の場合の剛性不
足を補い、また現場作業の煩雑さを解消する。In the present invention, by forming the web with a steel plate and the flanges on both sides with precast concrete, the weight is reduced and workability is improved compared to the case of a precast concrete structure alone, and at the same time, the lack of rigidity of a steel frame structure alone is compensated for. , and eliminates the complexity of on-site work.
鋼板はその上下端がプレキャストコンクリートのフラン
ジ中に定着されて一体化し、複合梁はＨ形の断面形状を
する。The upper and lower ends of the steel plates are fixed and integrated into precast concrete flanges, and the composite beam has an H-shaped cross-section.
鋼板の両面は現場施工前に耐火被覆材で被覆される。Both sides of the steel plate will be coated with fire-resistant cladding before construction on site.
またプレキャストコンクリートの上下のフランジ中には
上端、下端主筋とこれを拘束するスターラップが配筋さ
れ、上側のフランジ中のスターラップはフランジから上
側へ突出し、後から打設される現場打ちコンクリート中
に定着される定着部が形成される。In addition, the upper and lower end main reinforcement and stirrups that restrain them are arranged in the upper and lower flanges of precast concrete, and the stirrups in the upper flange protrude upward from the flange, and are used for cast-in-place concrete that will be placed later. A fixing section is formed to be fixed to.
以下本発明を一実施例を示す図面に基づいて説明する。 The present invention will be explained below based on the drawings showing one embodiment.
この発明の鋼板コンクリート複合梁Ｂはウェブを構成す
る鋼板１と、フランジを構成するプレキャストコンクリ
ート２，２とからなり、第１図、第２図に示すように現
場で上端主筋３“が配筋され、コンクリート６が打設さ
れて梁を構成するものである。The steel plate-concrete composite beam B of this invention consists of a steel plate 1 constituting the web and precast concrete 2, 2 constituting the flange, and the upper main reinforcement 3'' is placed at the site as shown in Figs. 1 and 2. Then, concrete 6 is poured to form the beam.
第１図に示すように鋼板１は上下端がプレキャストコン
クリート２．２中に定着されてこれに一体化しており、
また綱板１の両面には現場施工前に耐火被覆材７が張り
付けられ、または吹き付けられて被覆が施される。As shown in Fig. 1, the upper and lower ends of the steel plate 1 are fixed in and integrated with precast concrete 2.2.
Moreover, fireproof coating material 7 is pasted or sprayed on both sides of the rope board 1 before construction on site.
鋼板コンクリート複合梁Ｂの両端からは第１図、第２図
に示すように柱Ｃへの接合用の綱板１がプレキャストコ
ンクリート２，２と耐火被覆材７から露出しており、こ
の露出部分で第２図に示すように架設時、柱Ｃの側面か
ら突出し。As shown in Figures 1 and 2, from both ends of the steel plate-concrete composite beam B, the rope plate 1 for connection to the column C is exposed from the precast concrete 2, 2 and the fireproof coating 7, and this exposed portion As shown in Figure 2, it protrudes from the side of column C during erection.
たプレート８にボルト９により接合され、コンクリート
６の打設完了まで支持される。It is connected to the plate 8 with bolts 9, and is supported until the concrete 6 is completely poured.
また第２図に示すように上下フランジのプレキャストコ
ンクリート２．２中に配筋された上端主筋３と下端主筋
４は柱Ｃとの接合部付近で継手金物１０等により柱Ｃを
貫通する主筋に接続される。In addition, as shown in Fig. 2, the upper end main reinforcement 3 and the lower end main reinforcement 4, which are reinforced in the precast concrete 2.2 of the upper and lower flanges, are connected to the main reinforcement that passes through the column C using joint hardware 10, etc. near the joint with the column C. Connected.
鋼板コンクリート複合梁Ｂの架設、そして鋼板ｌと上端
主筋３．下端主筋４による柱Ｃとの接続後、上側のプレ
キャストコンクリート２上に上端主筋３９を後述のスタ
ーラップ５に通して配筋し、これを上端主筋３と同様に
接続し、更に第２図に示すように綱板ｌの露出部分団り
に通常のスターラップ５１を配筋し、コンクリート６を
打設して梁が完成する。Erection of steel plate concrete composite beam B, and installation of steel plate L and top main reinforcement 3. After connecting the lower end main reinforcement 4 to the column C, the upper end main reinforcement 39 is placed on the upper precast concrete 2 through the stirrup 5 (described later), connected in the same manner as the upper end main reinforcement 3, and further as shown in Fig. 2. As shown, ordinary stirrups 51 are arranged on the exposed part of the rope plate l, concrete 6 is poured, and the beam is completed.
第３図乃至第５図は本鋼板コンクリート複合梁Ｂの具体
的な製作例を示したものであるが、上下のプレキャスト
コンクリート２．２中には上端主筋３．下端主筋４．及
びこれらを拘束するスターラップ５が配筋されている。Figures 3 to 5 show a specific manufacturing example of this steel plate-concrete composite beam B, in which upper and lower main reinforcements 3.2 are included in the upper and lower precast concrete 2.2. Bottom main reinforcement 4. And stirrups 5 that restrain these are reinforced.
上側のプレキャストコンクリート２中のスターラップ５
はその上面より上側へ突出し、第１図、第２図に示すよ
うに先端には打設されるコンクリート６へ定着され、後
から配筋される上端主筋３９に係合するフック状の定着
部５ａが形成されている。Stirrup 5 in the upper precast concrete 2
protrudes upward from its upper surface, and as shown in FIGS. 1 and 2, the tip has a hook-shaped anchoring portion that is anchored to the concrete 6 to be poured and engages with the upper end main reinforcement 39 that will be reinforced later. 5a is formed.
下側のプレキャストコンクリート２中のスターラップ５
は全下端主筋４を取り囲むように配筋される。Stirrup 5 in lower precast concrete 2
are arranged so as to surround all the lower end main reinforcements 4.
第３図に示す実施例は上下のフランジ中のスターラップ
５．５を鋼板１の側面に折り曲げて溶接したものである
。In the embodiment shown in FIG. 3, the stirrups 5.5 in the upper and lower flanges are bent and welded to the side surface of the steel plate 1.
第４図に示す実施例は上下のスターラップ５゜５を綱板
１を貫通させて配筋し、また鋼板１の上下端に一部長さ
方向に切り込みを入れ、この部分を折り曲げることによ
り鋼板１とプレキャストコンクリート２．２との一体性
を高めたものである。In the embodiment shown in FIG. 4, the upper and lower stirrups 5°5 are reinforced by passing through the steel plate 1, and the upper and lower ends of the steel plate 1 are partially cut in the longitudinal direction, and these parts are bent. 1 and precast concrete 2.2.
第５図に示す実施例は第４図の場合と同しくスターラッ
プ５．５を鋼板１を貫通させて配筋すると同時に、綱板
１とプレキャストコンクリート２との一体性確保のため
、鋼板１上下端の両面にスタッドボルト１１を接合した
ものである。In the embodiment shown in FIG. 5, as in the case of FIG. 4, the stirrup 5.5 is reinforced by passing through the steel plate 1. Stud bolts 11 are joined to both the upper and lower ends.
なお、図示するように上側のプレキャストコンクリート
２の上面には打設されるコンクリート６との付着性を増
すため多少の不陸が付けられている。As shown in the figure, the upper surface of the upper precast concrete 2 is slightly uneven in order to increase adhesion to concrete 6 to be placed.
この発明は以上の通りであり、ウェブを鋼板で、フラン
ジをプレキャストコンクリートで構成し、それぞれの構
造的な利点を生かして形成されるものであるため、従来
のプレキャストコンクリート梁に対し、重量を概算で６
０％程度にまで軽減することができ、また柱との接合を
格別な部材を設けることなく、鋼板を露出させることに
よって容易に行うことができる。This invention is as described above, and since the web is made of steel plate and the flange is made of precast concrete, and is formed by taking advantage of the structural advantages of each, it is possible to roughly estimate the weight compared to the conventional precast concrete beam. So 6
This can be reduced to about 0%, and the steel plate can be easily joined to the column by exposing the steel plate without providing any special members.
また鋼板に製造時に耐火被覆を施しておくことによって
現場作業が簡略化され、更にフランジの大きさを調整す
ることにより梁全体の剛性も高めることができる。In addition, by applying a fireproof coating to the steel plate during manufacturing, on-site work is simplified, and by adjusting the size of the flange, the rigidity of the entire beam can be increased.
第１図は本発明の製作例を示した斜視図、第２図は柱へ
の接合の様子を示した立面図、第３図乃至第５図は本発
明の詳細を示した軸方向の断面図である。
Ｂ・・・・・・鋼板コンクリート複合梁、１・・・・・
・鋼板、２・・・・・・プレキャストコンクリート、３
・・・・・・上端主筋、３°・・・・・・上端主筋、４
・・・・・・下端主筋、５・・・・・・スターラップ、
５ａ・・・・・・定着部、５′・・・・・・スターラッ
プ、６・・・・・・コンクリート、７・・・・・・耐火
被覆材、８・・・・・・プレート、９・・・・・・ボル
ト、１０・・・・・・継手金物、１１・・・・・・スタ
ンドボルト、Ｃ・・・・・・柱。Fig. 1 is a perspective view showing a manufacturing example of the present invention, Fig. 2 is an elevational view showing how it is joined to a column, and Figs. 3 to 5 are axial views showing details of the invention. FIG. B...Steel plate concrete composite beam, 1...
・Steel plate, 2... Precast concrete, 3
・・・・・・Top main reinforcement, 3°・・・・・・Top main reinforcement, 4
・・・・・・Lower end main reinforcement, 5・・・・・・Stirrup,
5a... Anchoring part, 5'... Stirrup, 6... Concrete, 7... Fireproof covering material, 8... Plate, 9...Bolt, 10...Joint hardware, 11...Stand bolt, C...Column.
Claims (3)
するプレキャストコンクリートとからＨ形の断面形状を
し、鋼板は上下端がプレキャストコンクリート中に定着
されてこれに一体化していることを特徴とする鋼板コン
クリート複合梁。(1) The steel plate forming the web and the precast concrete forming the flanges on both sides have an H-shaped cross-section, and the steel plate has its upper and lower ends fixed in the precast concrete and is integrated with this. Steel plate concrete composite beam.
特徴とする第１請求項記載の鋼板コンクリート複合梁。(2) The steel plate concrete composite beam according to claim 1, wherein both sides of the steel plate are coated with a fireproof coating material.
ぞれ、主筋とこれを拘束するスターラップが配筋され、
上側のフランジ中のスターラップはフランジの上面から
上側へ突出し、現場打ちコンクリート中に定着される定
着部が形成されていることを特徴とする第１請求項記載
の鋼板コンクリート複合梁。(3) Main reinforcing bars and stirrups to restrain them are arranged in each precast concrete flange.
2. The steel plate concrete composite beam according to claim 1, wherein the stirrup in the upper flange projects upward from the upper surface of the flange to form an anchoring portion that is fixed in cast-in-place concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2090929A JP2666866B2 (en) | 1990-04-05 | 1990-04-05 | Steel plate concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2090929A JP2666866B2 (en) | 1990-04-05 | 1990-04-05 | Steel plate concrete composite beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03290552A true JPH03290552A (en) | 1991-12-20 |
| JP2666866B2 JP2666866B2 (en) | 1997-10-22 |
Family
ID=14012134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2090929A Expired - Lifetime JP2666866B2 (en) | 1990-04-05 | 1990-04-05 | Steel plate concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2666866B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277507A (en) * | 1995-04-07 | 1996-10-22 | P S Co Ltd | Steel-concrete combined girder |
| JP2014139370A (en) * | 2013-01-21 | 2014-07-31 | Hazama Ando Corp | Beam-column joint structure and construction method for the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134647A (en) * | 1974-09-19 | 1976-03-24 | Hitachi Ltd | |
| JPS6347451A (en) * | 1986-08-18 | 1988-02-29 | 日本鋼管株式会社 | Method for preventing transverse bending of steel beam having h-shaped cross-section |
-
1990
- 1990-04-05 JP JP2090929A patent/JP2666866B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134647A (en) * | 1974-09-19 | 1976-03-24 | Hitachi Ltd | |
| JPS6347451A (en) * | 1986-08-18 | 1988-02-29 | 日本鋼管株式会社 | Method for preventing transverse bending of steel beam having h-shaped cross-section |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277507A (en) * | 1995-04-07 | 1996-10-22 | P S Co Ltd | Steel-concrete combined girder |
| JP2014139370A (en) * | 2013-01-21 | 2014-07-31 | Hazama Ando Corp | Beam-column joint structure and construction method for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2666866B2 (en) | 1997-10-22 |
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