JP3176309B2 - Precast concrete slab for bridge structure and joining method thereof - Google Patents
Precast concrete slab for bridge structure and joining method thereofInfo
- Publication number
- JP3176309B2 JP3176309B2 JP05479997A JP5479997A JP3176309B2 JP 3176309 B2 JP3176309 B2 JP 3176309B2 JP 05479997 A JP05479997 A JP 05479997A JP 5479997 A JP5479997 A JP 5479997A JP 3176309 B2 JP3176309 B2 JP 3176309B2
- Authority
- JP
- Japan
- Prior art keywords
- precast concrete
- bar
- hook
- truss
- loop
- 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.)
- Expired - Lifetime
Links
- 239000011178 precast concrete Substances 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 8
- 239000004567 concrete Substances 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 210000003205 muscle Anatomy 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 238000005452 bending Methods 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は橋梁構造物用のプレ
キャストコンクリート床板及びその接合方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete slab for a bridge structure and a joining method thereof.
【0002】[0002]
【従来の技術】道路橋などの橋梁にはプレキャストコン
クリート床板が多く使用されるようになっている。この
構築方法は、図9の(1)に示すように、橋桁21に、
いわゆるフルプレキャストコンクリート床板22を敷並
べて接合した後に、短辺方向の両側に、プレキャスト
製、あるいは現場打ちコンクリート製の地覆23を形成
していた。またフルプレキャストコンクリート床板22
の接合方法は、同図の(2)に示すように、側面のルー
プ筋24を橋桁方向に重ね合わせ、そこに主鉄筋25を
端から橋桁方向に挿入して配筋していた。2. Description of the Related Art Precast concrete floorboards are often used for bridges such as road bridges. In this construction method, as shown in (1) of FIG.
After the so-called full precast concrete floor boards 22 are laid and joined, a ground covering 23 made of precast or cast-in-place concrete is formed on both sides in the short side direction. In addition, full precast concrete slab 22
As shown in (2) of the figure, in the joining method of (1), the side loop bars 24 are overlapped in the bridge girder direction, and the main reinforcing bars 25 are inserted from the ends in the bridge girder direction and arranged.
【0003】[0003]
【発明が解決しようとする課題】このような橋梁は、プ
レキャストコンクリート床板を敷並べた後に、地覆をプ
レキャスト製、あるいは現場打ちコンクリート製で構築
していたために手間がかかっていた。またプレキャスト
コンクリート床板の接合も、ループ筋を橋桁方向に重ね
合わせ、そこに主鉄筋を橋桁方向に挿入していたため作
業効率が悪かった。However, such a bridge is troublesome because the ground covering is made of precast or cast-in-place concrete after laying precast concrete floorboards. Also, for precast concrete floor slab joining, the loop bars were overlapped in the direction of the bridge girder, and the main reinforcement was inserted in the direction of the bridge girder, resulting in poor work efficiency.
【0004】本発明はこれらの問題に鑑みてなされたも
のであり、その目的はプレキャストコンクリート床板の
接合および橋梁の構築を容易かつ効率的に行うことであ
る。The present invention has been made in view of these problems, and an object of the present invention is to easily and efficiently join precast concrete slabs and construct bridges.
【0005】[0005]
【課題を解決するための手段】以上の課題を解決するた
めの本発明の橋梁構造物用のプレキャストコンクリート
床板は、トラス筋の上部がコンクリート板から突出され
たプレキャストコンクリート板の短辺方向の両側に地覆
が一体形成され、前記プレキャストコンクリート板の長
辺方向の両側面には上側に湾曲したフック筋が適宜間隔
ごとに突設され、一方のフック筋が他方のフック筋より
も湾曲径が大きく、かつ湾曲径の大きなフック筋の下部
がプレキャストコンクリート板の長辺側面の載置部に埋
設され、該載置部のフック筋間には凹部が形成されたこ
とを特徴とする。また橋梁構造物用のプレキャストコン
クリート床板の接合方法は、上面からトラス筋が突出し
たプレキャストコンクリート床板を、長辺方向の側面を
突き合わせて橋桁上に敷並べ、これらの側面から突出し
た湾曲径の異なるフック筋を橋桁方向に重ね合わせてル
ープを形成し、該ループには湾曲径の異なるフック筋に
よる鉄筋挿入用の間隙部が形成され、該間隙部からルー
プ内に主鉄筋を配筋した後に、トッピングコンクリート
を打設することを特徴とする。According to the present invention, there is provided a precast concrete floor slab for a bridge structure, wherein an upper portion of a truss bar is projected from the concrete slab.
Lining on both sides in the short side direction of precast concrete
Are integrally formed, and the length of the precast concrete plate is
Hooks curved upward on both sides in the side direction are properly spaced
Each hook protrudes, and one hook streak is
The lower part of the hook muscle with a large curved diameter and a large curved diameter
Is buried in the mounting part on the long side of the precast concrete plate.
And a concave portion is formed between the hook streaks of the mounting portion . The method of joining pre-cast concrete floor for bridge structures, trusses muscle protrudes from the upper surface
Precast concrete floor slab
Lay them side by side on the bridge girder and project from these sides
Hooks with different curved diameters
Loop, and the loop has hook muscles with different curved diameters.
A gap for the rebar insertion is formed, and a loop is formed from the gap.
After arranging the main reinforcing bars in the
Is characterized by being cast .
【0006】[0006]
【発明の実施の形態】以下、本発明の橋梁構造物用のプ
レキャストコンクリート床板およびその接合方法につい
て説明する。図1はプレキャストコンクリート床板の平
面図、図2は図1のA−A線断面図、図3は同B−B線
断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a precast concrete slab for a bridge structure and a joining method thereof according to the present invention will be described. 1 is a plan view of a precast concrete floor panel, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG.
【0007】プレキャストコンクリート床板1はコンク
リート板2と、長辺方向に沿って適宜間隔ごとに配筋さ
れた4本のトラス筋3と、短辺方向の両側に一体形成さ
れた地覆4とから構成され、前記トラス筋3の上部がコ
ンクリート板2の上面から突出している。The precast concrete floor panel 1 is composed of a concrete panel 2, four truss bars 3 arranged at appropriate intervals along the long side direction, and a ground covering 4 integrally formed on both sides in the short side direction. The upper part of the truss bar 3 is projected from the upper surface of the concrete plate 2.
【0008】トラス筋3は、三角形状に配置された一本
の上端筋5と二本の下端筋6とが波形のラチス筋7で接
合した三角トラスである。これは三角トラスに限らず、
一本の上端筋と一本の下端筋とがラチス筋で接合された
トラス筋(図示せず)であってもよい。The truss bar 3 is a triangular truss in which one upper bar 5 and two lower bars 6 arranged in a triangular shape are joined by a lattice lattice 7 having a waveform. This is not limited to triangular truss,
A truss bar (not shown) in which one upper bar and one lower bar are joined by a lattice bar may be used.
【0009】一方、コンクリート板2の長辺方向の両側
面には上側に湾曲したフック筋8が適宜間隔ごとに突出
され、一方の側面と他方の側面とは互いに位置がずれて
いる。これらのフック筋8は湾曲径が異なった小径のフ
ック筋8aと大径のフック筋8bであり、一方の側面に
は小径のフック筋8aが、また他方の側面には大径のフ
ック筋8bがそれぞれ突出している。該大径のフック筋
8bの下部は載置部11に埋設され、該載置部11には
凹部12が形成されている。載置部11は断面凹凸に形
成され、凸部13に大径のフック筋8bの下部が埋設さ
れたことにより一定の強度が保持される。またコンクリ
ート板2の適宜箇所には位置決め孔14が形成され、こ
こには橋桁のスタッドボルトが貫入されるようになって
いる。On the other hand, upwardly curved hook streaks 8 protrude at appropriate intervals from both sides in the long side direction of the concrete plate 2, and the positions of one side and the other side are shifted from each other. These hook streaks 8 are a small-diameter hook streaks 8a and a large-diameter hook streaks 8b having different curved diameters. One side has the small-diameter hook streaks 8a, and the other side has the large-diameter hook streaks 8b. Are protruding respectively. The lower part of the large-diameter hook streaks 8b is buried in the mounting portion 11, and the mounting portion 11 has a recess 12 formed therein. The mounting portion 11 is formed to have a concave and convex section, and the lower portion of the large-diameter hook streaks 8b is embedded in the convex portion 13 to maintain a certain strength. Also, a positioning hole 14 is formed at an appropriate place of the concrete plate 2 so that a stud bolt of a bridge girder can penetrate there.
【0010】次に、上記のようなプレキャストコンクリ
ート床板1の接合方法を、橋梁の構築に基づいて説明す
る。図5は、3本のI形状の鋼桁16上にプレキャスト
コンクリート床板1を、長辺方向の側面を突き合わせて
敷並べたものであり、一方のプレキャストコンクリート
床板1の小径のフック筋8aが、他方のプレキャストコ
ンクリート床板1の載置部11の凹部12に載せられて
いる。したがって、これらフック筋8aと大径のフック
筋8bとが鋼桁方向に交互に重なり合ってループ9を形
成している。このループ9はフック筋8が小径および大
径であるため、その上部に鉄筋挿入用の間隙部10が形
成される。Next, a method of joining the precast concrete slab 1 as described above will be described based on the construction of a bridge. FIG. 5 shows precast concrete floor boards 1 laid on three I-shaped steel girders 16 with their long sides facing each other. Small-diameter hook bars 8a of one precast concrete floor board 1 The other precast concrete slab 1 is placed in the concave portion 12 of the placing portion 11. Therefore, the hook streaks 8a and the large-diameter hook streaks 8b alternately overlap in the steel girder direction to form the loop 9. Since the hook streaks 8 of the loop 9 have a small diameter and a large diameter, a gap 10 for inserting a reinforcing bar is formed at an upper portion thereof.
【0011】次に、間隙部10からループ9内に2本の
主鉄筋17を挿入して配筋するとともに、間隙部10に
も2本の主鉄筋17を配筋する。これらの主鉄筋17は
横方向からループ9内に挿入して配筋できる。またコン
クリート板2の位置決め孔14には鋼桁16のスタッド
ボルト15が貫入されて、プレキャストコンクリート床
板1の位置ずれを防止している。Next, two main reinforcing bars 17 are inserted and arranged in the loop 9 from the gap 10, and two main reinforcing bars 17 are also arranged in the gap 10. These main reinforcing bars 17 can be inserted into the loop 9 from the side and arranged. Stud bolts 15 of steel girders 16 penetrate into the positioning holes 14 of the concrete plate 2 to prevent the precast concrete floor plate 1 from shifting.
【0012】このような方法でプレキャストコンクリー
ト床板1を敷並べるとともに、側面に形成されたループ
9に横方向から主鉄筋17を配筋する。そしてプレキャ
ストコンクリート床板1上にトッピングコンクリート
(図示せず)を打設し、地覆4の上には高欄(図示せ
ず)を取り付けて橋梁の構築を完了する。このように地
覆4が一体形成されたプレキャストコンクリート床板1
を使用することにより、地覆4の構築が省略できるとと
もに、主鉄筋17も横方向から配筋できるため橋梁が効
率的に構築できる。In this manner, the precast concrete slabs 1 are laid and the main reinforcing bars 17 are arranged laterally on the loops 9 formed on the side surfaces. Then, topping concrete (not shown) is cast on the precast concrete floorboard 1 and a railing (not shown) is attached on the ground cover 4 to complete the construction of the bridge. The precast concrete slab 1 in which the ground cover 4 is integrally formed as described above.
By using, the construction of the ground cover 4 can be omitted and the main reinforcing bar 17 can also be arranged in the lateral direction, so that the bridge can be constructed efficiently.
【0013】[0013]
【発明の効果】コンクリート板の上面からトラス筋の上
部が突出したプレキャストコンクリート床板、いわゆる
ハーフPC床板の短辺方向の両側に地覆を一体形成した
ので、現場においてのプレキャストまたは現場打ちコン
クリートでの地覆の形成が省略できる。According to the present invention, the ground covering is integrally formed on both sides in the short side direction of the precast concrete floor plate in which the upper part of the truss bar projects from the upper surface of the concrete plate, so-called half PC floor plate. The formation of the ground cover can be omitted.
【0014】いわゆるハーフPCに地覆を一体形成する
ので、重量の面でも支障なく運搬できる。Since the ground cover is formed integrally with the so-called half PC, it can be transported without any problem in terms of weight.
【0015】湾曲径が異なった小径のフック筋と大径の
フック筋とが、長辺方向に交互に重なり合ってループと
なり、該ループの上部には鉄筋挿入用の間隙部が形成さ
れたことにより、該間隙部からループ内に主鉄筋を挿入
して配筋できる。[0015] The small diameter hook streaks and the large diameter hook streaks having different curved diameters are alternately overlapped in the long side direction to form a loop, and a gap for reinforcing bar insertion is formed on the upper portion of the loop. The main reinforcement can be inserted into the loop from the gap to arrange the reinforcement.
【0016】地覆が一体形成されたプレキャストコンク
リート床板を使用するとともに、ループ内に主鉄筋を横
方向から配筋できるため橋梁が効率的に構築できる。[0016] The bridge can be constructed efficiently because a precast concrete slab with an integrated ground cover is used and the main reinforcing bars can be arranged in the loop from the lateral direction.
【図1】プレキャストコンクリート床板の平面図であ
る。FIG. 1 is a plan view of a precast concrete floor panel.
【図2】図1のA−A線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図3】図1のB−B線断面図である。FIG. 3 is a sectional view taken along line BB of FIG. 1;
【図4】(1)および(2)はプレキャストコンクリー
ト床板の一部の側面図である。FIGS. 4 (1) and (2) are side views of a portion of a precast concrete slab.
【図5】橋桁上にプレキャストコンクリート床板を敷並
べた平面図である。FIG. 5 is a plan view in which precast concrete floorboards are arranged on a bridge girder.
【図6】図5のC−C線断面図である。FIG. 6 is a sectional view taken along line CC of FIG. 5;
【図7】(1)は接合部の拡大断面図、(2)は(1)
のE−E線断面図である。 FIG. 7 (1) is an enlarged sectional view of a joint, and (2) is (1).
FIG. 7 is a sectional view taken along line EE of FIG.
【図8】図5のD−D線断面図である。 FIG. 8 is a sectional view taken along line DD of FIG . 5;
【図9】(1)は従来のプレキャストコンクリート床板
を使用した橋梁の構築方法を示す斜視図、(2)は従来
のプレキャストコンクリート床板の接合方法の断面図で
ある。FIG. 9 (1) is a perspective view showing a method for constructing a bridge using a conventional precast concrete floorboard, and (2) is a cross-sectional view of a conventional method for joining a precast concrete floorboard.
1 プレキャストコンクリート床板 2 コンクリート板 3 トラス筋 4 地覆 5 上端筋 6 下端筋 7 ラチス筋 8 フック筋 9 ループ 10 間隙部 11 鍔部 12 凹部 13 凸部 DESCRIPTION OF SYMBOLS 1 Precast concrete floor board 2 Concrete board 3 Truss bar 4 Ground cover 5 Upper bar 6 Lower bar 7 Lattice bar 8 Hook bar 9 Loop 10 Gap part 11 Flange part 12 Concave part 13 Convex part
フロントページの続き (72)発明者 岡本 浩 千葉県東葛飾郡関宿町木間ケ瀬5472 飛 島建設株式会社 技術研究所内 (72)発明者 武藤 正人 千葉県東葛飾郡関宿町木間ケ瀬5472 飛 島建設株式会社 技術研究所内 (72)発明者 佐藤 真一郎 東京都渋谷区東3丁目15番7号 日本カ イザー株式会社内 (72)発明者 内藤 雅義 東京都渋谷区東3丁目15番7号 日本カ イザー株式会社内 (72)発明者 木村 勝利 東京都渋谷区東3丁目15番7号 日本カ イザー株式会社内 (56)参考文献 特開 平8−20915(JP,A) 実開 平3−84327(JP,U) (58)調査した分野(Int.Cl.7,DB名) E01D 19/12 E01D 21/00 Continued on the front page (72) Inventor Hiroshi Okamoto 5472 Kimagase, Sekijuku-machi, Higashi-Katsushika-gun, Chiba Prefecture Inside the Technical Research Laboratory (72) Inventor Masato Mutoh 5472 Kimagase, Sekijuku-cho, Higashi-Katsushika-gun, Chiba Prefecture Tobishima Construction Co., Ltd. Inside the research institute (72) Inventor Shinichiro Sato 3-15-7 Higashi, Shibuya-ku, Tokyo Japan Kaiser Co., Ltd. (72) Inventor Masayoshi Naito 3-15-7 Higashi, Shibuya-ku, Tokyo Japan Kaiser Co., Ltd. (72) Inventor Katsutoshi Kimura 3-15-7 Higashi, Shibuya-ku, Tokyo Japan Kaiser Co., Ltd. (56) References JP-A-8-20915 (JP, A) JP-A-3-84327 (JP, U.S.A.) (58) Fields surveyed (Int. Cl. 7 , DB name) E01D 19/12 E01D 21/00
Claims (4)
出されたプレキャストコンクリート板の短辺方向の両側
に地覆が一体形成され、前記プレキャストコンクリート
板の長辺方向の両側面には上側に湾曲したフック筋が適
宜間隔ごとに突設され、一方のフック筋が他方のフック
筋よりも湾曲径が大きく、かつ湾曲径の大きなフック筋
の下部がプレキャストコンクリート板の長辺側面の載置
部に埋設され、該載置部のフック筋間には凹部が形成さ
れたことを特徴とする橋梁構造物用のプレキャストコン
クリート床板。 The upper part of the truss bar projects from a concrete plate.
Both sides in the short side direction of the released precast concrete plate
The ground cover is integrally formed on the precast concrete
An upwardly curved hook streak is suitable for both sides in the long side direction of the board.
The hooks are projected at regular intervals, and one hook
Hook muscle that has a larger bending diameter than the muscle and a larger bending diameter
Is placed on the long side of the precast concrete plate
Recesses are formed between the hook streaks of the mounting portion.
Precast concrete slab for bridge structures, characterized in that it has been removed.
上端筋と二本の下端筋とが波型のラチス筋で連結された
ことを特徴とする請求項1に記載の橋梁構造物用のプレ
キャストコンクリート床板。2. A truss bar is a single truss bar arranged in a triangular shape.
The precast concrete floor plate for a bridge structure according to claim 1, wherein the upper end bar and the two lower bar bars are connected by a corrugated lattice bar .
が、波型のラチス筋で連結されたことを特徴とする請求
項1に記載の橋梁構造物用のプレキャストコンクリート
床板。3. The truss bar includes a top bar and a bottom bar.
The precast concrete slab for a bridge structure according to claim 1, wherein the slabs are connected by a corrugated lattice bar .
トコンクリート床板を、長辺方向の側面を突き合わせて
橋桁上に敷並べ、これらの側面から突出した湾曲径の異
なるフック筋を橋桁方向に重ね合わせてループを形成
し、該ループには湾曲径の異なるフック筋による鉄筋挿
入用の間隙部が形成され、該間隙部からループ内に主鉄
筋を配筋した後に、トッピングコンクリートを打設する
ことを特徴とする橋梁構造物用のプレキャストコンクリ
ート床板の接合方法。4. A cascade with truss bars projecting from the upper surface.
Concrete floorboards with the long sides facing each other
Lay them on a bridge girder, and project
Hook streaks overlap in the direction of the bridge girder to form a loop
However, a reinforcing bar is inserted into the loop using hook bars with different curved diameters.
An input gap is formed, and the main iron is inserted into the loop from the gap.
A method for joining precast concrete floorboards for a bridge structure , wherein topping concrete is cast after reinforcing bars are arranged .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05479997A JP3176309B2 (en) | 1997-03-10 | 1997-03-10 | Precast concrete slab for bridge structure and joining method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05479997A JP3176309B2 (en) | 1997-03-10 | 1997-03-10 | Precast concrete slab for bridge structure and joining method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10252015A JPH10252015A (en) | 1998-09-22 |
JP3176309B2 true JP3176309B2 (en) | 2001-06-18 |
Family
ID=12980810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05479997A Expired - Lifetime JP3176309B2 (en) | 1997-03-10 | 1997-03-10 | Precast concrete slab for bridge structure and joining method thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3176309B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007231694A (en) * | 2006-03-03 | 2007-09-13 | Tekken Constr Co Ltd | Joint method of concrete structure, and concrete beam |
KR100778035B1 (en) * | 2007-01-02 | 2007-11-21 | 김근택 | Half precast concrets slab and coupling structure of bridges use the same |
Families Citing this family (6)
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KR100635137B1 (en) * | 2004-11-08 | 2006-10-17 | 주식회사 효성엘비데크 | Bridge slab construction method and lattice bar deck-shaped precast concrete plate applied therein |
JP4833538B2 (en) * | 2004-11-16 | 2011-12-07 | 川田建設株式会社 | Reinforced concrete slab using half precast slab |
JP5932455B2 (en) * | 2012-04-19 | 2016-06-08 | 三井住友建設株式会社 | Reinforcement joint structure and pier reinforcement method |
CN102635235B (en) * | 2012-05-08 | 2014-05-14 | 昆山生态屋建筑技术有限公司 | Method for cast-in-place of ferrocement panel by spliced net frame suspension template |
CN111455864A (en) * | 2020-05-18 | 2020-07-28 | 中交二航局第四工程有限公司安徽混凝土装配化构件分公司 | Construction method for transverse wet joint of prefabricated bridge deck factory |
CN113529569B (en) * | 2021-06-30 | 2022-07-08 | 中国建筑第五工程局有限公司 | Double-deck slab structure and construction method thereof |
-
1997
- 1997-03-10 JP JP05479997A patent/JP3176309B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007231694A (en) * | 2006-03-03 | 2007-09-13 | Tekken Constr Co Ltd | Joint method of concrete structure, and concrete beam |
KR100778035B1 (en) * | 2007-01-02 | 2007-11-21 | 김근택 | Half precast concrets slab and coupling structure of bridges use the same |
Also Published As
Publication number | Publication date |
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JPH10252015A (en) | 1998-09-22 |
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