JPH0426524Y2 - - Google Patents
Info
- Publication number
- JPH0426524Y2 JPH0426524Y2 JP1986138250U JP13825086U JPH0426524Y2 JP H0426524 Y2 JPH0426524 Y2 JP H0426524Y2 JP 1986138250 U JP1986138250 U JP 1986138250U JP 13825086 U JP13825086 U JP 13825086U JP H0426524 Y2 JPH0426524 Y2 JP H0426524Y2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- main reinforcing
- longitudinal
- concrete sheet
- sheet pile
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 57
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、コンクリート矢板に関する。[Detailed explanation of the idea] [Industrial application field] This invention relates to concrete sheet piles.
一般に、地盤中において、コンクリート矢板の
土圧による曲げ応力は一定せず、切ばりを併用す
るとさらに複雑な変化を示す。概して、その値は
矢板中央部で大きく、上下両端になるほど小さ
い。
In general, the bending stress of concrete sheet piles due to earth pressure in the ground is not constant, and when cut beams are used in combination, the bending stress changes even more complicatedly. In general, the value is large at the center of the sheet pile and becomes smaller towards both the top and bottom ends.
しかしながら、従来のコンクリート矢板の設計
は、打ち込みの際の圧縮応力や製作上の便宜等を
考慮して圧縮側と引張側の鉄筋量を変える程度
で、矢板の長手方向に関してはほぼ均一な断面に
設計されている。しかも、各部分の鉄筋は、安全
を考慮して全体に渡つて多めに配筋するのが一般
的である。 However, in conventional concrete sheet pile design, the amount of reinforcing bars on the compression side and the tension side are changed to take into consideration the compressive stress during driving and manufacturing convenience, and the cross section of the sheet pile is almost uniform in the longitudinal direction. Designed. Moreover, in consideration of safety, it is common to have a large number of reinforcing bars throughout the entire building.
このため、全体の使用鉄筋量が相当なものにな
り、きわめて不経済なものであつた。さらに、従
来の断面設計は単に鉄筋の径、本数、間隔を変更
するだけであつたため鉄筋量の割にはそんなに断
面強度を高めることはできなかつた。
For this reason, the total amount of reinforcing bars used was considerable, making it extremely uneconomical. Furthermore, because the conventional cross-sectional design simply changed the diameter, number, and spacing of reinforcing bars, it was not possible to increase the cross-sectional strength that much considering the amount of reinforcing bars.
この考案は、このような前記従来の問題点を解
消するために提案されたもので、高強度を有し、
製造が容易で、かつ、大幅な経済設計を可能にし
たコンクリート矢板を提供することを目的とす
る。 This invention was proposed to solve the above-mentioned conventional problems, and has high strength and
The purpose of the present invention is to provide a concrete sheet pile that is easy to manufacture and enables a significantly economical design.
この考案は、コンクリート矢板のコンクリート
中にコンクリート矢板の長手方向および幅方向に
沿つて複数本の縦主鉄筋と横鉄筋をそれぞれ配筋
し、かつ、外力による曲げ応力の大きい部分の前
記圧縮側の縦主鉄筋と引つ張り側の縦主鉄筋との
間に、これらの縦主鉄筋とあいまつて縦主鉄筋の
長手方向に連続するトラスを構成するように複数
本の補強鉄筋を配筋することにより前記目的を達
成するものである。
This idea involves arranging a plurality of vertical main reinforcing bars and horizontal reinforcing bars in the concrete of the concrete sheet pile along the longitudinal and width directions of the concrete sheet pile. Arranging multiple reinforcing reinforcing bars between the longitudinal main reinforcing bars and the longitudinal main reinforcing bars on the tension side in such a way that together with these longitudinal main reinforcing bars, they form a truss that continues in the longitudinal direction of the longitudinal main reinforcing bars. This achieves the above objective.
〔実施例〕
以下、この考案を図示する一実施例によつて説
明する。[Example] This invention will be explained below by way of an illustrative example.
コンクリート矢板１のコンクリート中には複数
本の縦主鉄筋２，…がコンクリート矢板１の長手
方向に沿つて、かつ圧縮側と引つ張り側との両側
に二重に配筋されている。 In the concrete of the concrete sheet pile 1, a plurality of vertical main reinforcing bars 2,... are arranged in double reinforcement along the longitudinal direction of the concrete sheet pile 1, and on both sides of the compression side and the tension side.
縦主鉄筋２，…のうち引つ張り側のものは比較
的太くかつ小間隔に配筋され、圧縮側のものは比
較的細く、かつ広間隔に配筋されている。 Among the longitudinal main reinforcing bars 2,..., those on the tension side are relatively thick and arranged at small intervals, and those on the compression side are relatively thin and arranged at wide intervals.
また、圧縮側および引張り側の縦主鉄筋２、…
の内側には複数本の横鉄筋３、…がコンクリート
矢板１の幅方向に沿つて一定間隔に配筋されてい
る。横鉄筋３、…はすべて縦主鉄筋２、…に溶接
され、縦主鉄筋２、…と相まつて格子鉄筋を構成
している。 In addition, the longitudinal main reinforcing bars 2 on the compression side and the tension side,...
Inside the concrete sheet pile 1, a plurality of horizontal reinforcing bars 3,... are arranged at regular intervals along the width direction of the concrete sheet pile 1. The horizontal reinforcing bars 3,... are all welded to the vertical main reinforcing bars 2,..., and together with the vertical main reinforcing bars 2,... constitute a lattice reinforcing bar.
さらに、コンクリート矢板１が地盤中において
土圧により大きな曲げ応力が生ずる部分Ａ域には
複数本の補強鉄筋４，…が配筋されている。 Furthermore, a plurality of reinforcing reinforcing bars 4, . . . are arranged in a region A of the concrete sheet pile 1 in the ground where large bending stress is generated due to earth pressure.
補強鉄筋４，…は一定長さを有し、波形状に形
成されている。そして、補強鉄筋４，…は圧縮側
縦主鉄筋２と引張り側縦主鉄筋２間に配筋され、
かつ圧縮側および引張りの縦主鉄筋２，２に溶接
され、これらの鉄筋と相まつてトラスを構成して
いる。 The reinforcing bars 4,... have a constant length and are formed in a wave shape. Then, the reinforcing reinforcing bars 4, ... are arranged between the compression side longitudinal main reinforcing bars 2 and the tension side longitudinal main reinforcing bars 2,
It is welded to the compression side and tension longitudinal main reinforcing bars 2, 2, and together with these reinforcing bars constitutes a truss.
なお、補強鉄筋４，…は短めに形成することに
より曲げ加工および溶接がしやすくしてあるとと
もに縦主鉄筋２，２の両側に交互に溶接すること
により偏心配筋にならないように配置されてい
る。 In addition, the reinforcing reinforcing bars 4, ... are formed short to make it easier to bend and weld, and are arranged so that they do not become eccentric bars by welding them alternately to both sides of the vertical main reinforcing bars 2, 2. There is.
この考案は以上の構成からなるので以下の効果
を有する。
Since this invention has the above configuration, it has the following effects.
コンクリート中にコンクリート矢板の長手方向
および幅方向に沿つて複数本の縦主鉄筋と横鉄筋
がそれぞれ配筋され、かつ、外力による曲げ応力
の大きい部分の前記圧縮側の縦主鉄筋と引つ張り
側の縦主鉄筋との間に、これらの縦主鉄筋とあい
まつて縦主鉄筋の長手方向に連続するトラスを構
成するように複数本の補強鉄筋が縦主鉄筋に沿つ
て配筋されているので、きわめて経済的で無駄の
無い配筋により曲げ強度のきわめて大きいコンク
リート矢板を容易に製造することができる。 A plurality of vertical main reinforcing bars and horizontal reinforcing bars are arranged in the concrete along the longitudinal direction and the width direction of the concrete sheet piles, and the vertical main reinforcing bars on the compression side and the tensile main reinforcing bars are arranged in the concrete sheet pile in the longitudinal direction and the width direction, respectively, and the longitudinal main reinforcing bars on the compression side and the longitudinal main reinforcing bars in the parts where the bending stress due to external force is large are arranged. Between the longitudinal main reinforcing bars on the side, multiple reinforcing reinforcing bars are arranged along the longitudinal main reinforcing bars so that together with these longitudinal main reinforcing bars, they form a truss that continues in the longitudinal direction of the longitudinal main reinforcing bars. Therefore, it is possible to easily manufacture concrete sheet piles with extremely high bending strength through extremely economical and efficient reinforcing arrangement.
第１図〜第３図は、この考案の実施例を示した
もので、第１図はコンクリート矢板の配筋状態を
示す縦断面図、第２図は第１図における−線
拡大断面図、第３図は第図における一部拡大側
面図である。
１……コンクリート矢板、２……縦主鉄筋、３
……横鉄筋、４……補強鉄筋。
Figures 1 to 3 show examples of this invention; Figure 1 is a vertical cross-sectional view showing the reinforcing condition of concrete sheet piles, Figure 2 is an enlarged cross-sectional view taken along the - line in Figure 1; FIG. 3 is a partially enlarged side view of FIG. 1... Concrete sheet pile, 2... Vertical main reinforcement, 3
...Horizontal reinforcing bar, 4...Reinforcement reinforcing bar.
Claims (1)
ート矢板の長手方向および幅方向に沿つて複数本
の縦主鉄筋と横鉄筋をそれぞれ配筋し、かつ、外
力による曲げ応力の大きい部分の前記圧縮側の縦
主鉄筋と引つ張り側の縦主鉄筋との間に、これら
の縦主鉄筋とあいまつて縦主鉄筋の長手方向に連
続するトラスを構成するように複数本の補強鉄筋
を配筋したなることを特徴とするコンクリート矢
板。 A plurality of longitudinal main reinforcing bars and horizontal reinforcing bars are respectively arranged in the concrete of the concrete sheet pile along the longitudinal direction and the width direction of the concrete sheet pile, and the vertical main reinforcing bars on the compression side in the part where bending stress due to external force is large are arranged. It is characterized by a plurality of reinforcing reinforcing bars arranged between the longitudinal main reinforcing bars on the tension side so as to form a truss that, together with these longitudinal main reinforcing bars, continues in the longitudinal direction of the longitudinal main reinforcing bars. concrete sheet piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986138250U JPH0426524Y2 (en) | 1986-09-09 | 1986-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986138250U JPH0426524Y2 (en) | 1986-09-09 | 1986-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6345845U JPS6345845U (en) | 1988-03-28 |
| JPH0426524Y2 true JPH0426524Y2 (en) | 1992-06-25 |
Family
ID=31043061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986138250U Expired JPH0426524Y2 (en) | 1986-09-09 | 1986-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426524Y2 (en) |
-
1986
- 1986-09-09 JP JP1986138250U patent/JPH0426524Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6345845U (en) | 1988-03-28 |
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