JPS5853322Y2 - Vertical joints in underground walls - Google Patents
Vertical joints in underground wallsInfo
- Publication number
- JPS5853322Y2 JPS5853322Y2 JP1140082U JP1140082U JPS5853322Y2 JP S5853322 Y2 JPS5853322 Y2 JP S5853322Y2 JP 1140082 U JP1140082 U JP 1140082U JP 1140082 U JP1140082 U JP 1140082U JP S5853322 Y2 JPS5853322 Y2 JP S5853322Y2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- vertical
- support plate
- joint
- loop reinforcing
- 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
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【考案の詳細な説明】
従来の地中連続壁の鉛直継手としては、基本的には第１
図に示すように垂直仕切板ａ及び同仕切板ａと直交する
一双の支持板す、ｂとよりなるキ型継手金具における各
支持板すの片面に、コ字状のループ鉄筋Ｃの上下両端を
溶接している例が多い。[Detailed explanation of the invention] As a conventional vertical joint for an underground continuous wall, basically the first
As shown in the figure, in a square joint fitting consisting of a vertical partition plate a and a pair of support plates S and B perpendicular to the partition plate A, U-shaped loop reinforcing bars C are attached at both upper and lower ends on one side of each support plate. There are many examples of welding.
この場合ループ鉄筋Ｃは支持板すの片面において溶接さ
れているので平面的に配設され、互いに重ね合わせるこ
とができず、離隔して溶接する必要がある。In this case, since the loop reinforcing bars C are welded on one side of the support plate, they are arranged in a plane and cannot be overlapped with each other, so they must be welded at a distance.
このためループ鉄筋相互間の連繋がなく、一体性に欠け
、また必然的にループ鉄筋溶接部が近すき易く、コンク
リートの支圧強度が小さくなり、強度上不利となる。For this reason, there is no connection between the loop reinforcing bars, resulting in a lack of integrity, and the loop reinforcing bars tend to be welded close to each other, which reduces the bearing strength of the concrete, which is disadvantageous in terms of strength.
これに対して、折曲部ｄにおいてひねりを与えたループ
鉄筋ｅを重ね合わせて、前記支持板すの片面に溶接した
鉛直継手（第２図参照）が提案されているが、形状が複
雑になり、連続した形でループ鉄筋を取付けられない。On the other hand, a vertical joint (see Fig. 2) has been proposed in which twisted loop reinforcing bars e are overlapped at the bent part d and welded to one side of the support plate (see Fig. 2), but the shape is complicated. Therefore, it is not possible to install loop reinforcing bars in a continuous manner.
また第３図に示すように、直鉄筋ｆを支持板すの両面に
溶接した鉛直継手も提案されているが、鉄筋端部が切離
されているために一体性に欠け、鉄筋籠を建込む際の施
工性に難点がある。Also, as shown in Figure 3, a vertical joint in which straight reinforcing bars f are welded to both sides of the support plate has been proposed, but since the ends of the reinforcing bars are cut off, they lack integrity, making it difficult to construct a reinforcing bar cage. There is a problem with the construction when it is installed.
本案は叙上の欠点を除去するために提案されたもので、
垂直仕切板１及び同仕切板１と直交する一双の垂直支持
板２，２とよりなる継手金具における前記各支持板２の
表裏両面に亙ってループ鉄筋３を跨架し、同ループ鉄筋
３の上下各端部を前記支持板２の表裏各面に夫々溶接し
てなることを特徴とする地中連続壁の鉛直継手に係るも
のである。This proposal was proposed to eliminate the drawbacks mentioned above.
In a joint fitting consisting of a vertical partition plate 1 and a pair of vertical support plates 2, 2 perpendicular to the partition plate 1, loop reinforcing bars 3 are straddled over both the front and back sides of each of the support plates 2, and the loop reinforcing bars 3 are This relates to a vertical joint for an underground continuous wall, characterized in that the upper and lower ends of the support plate 2 are welded to the front and back surfaces of the support plate 2, respectively.
本案に係る地中連続壁の鉛直継手は前記したように、垂
直仕切板１及び同仕切板１と直交する一双の垂直支持板
２，２とよりなるキ型の継手金具における同各支持板２
にループ鉄筋３を配設するのに際して、従来のよデに前
記支持板２の片面に配設することなく、同支持板２の表
裏両面に跨って配設し、ループ鉄筋３の上下各端部を前
記支持板２の表裏各面に夫々溶接したので、ループ鉄筋
溶接部のピッチを大きくとってこの部分のコンクリート
支圧強度を向上しうるものである。As mentioned above, the vertical joint of the underground continuous wall according to the present invention is a square-shaped joint fitting consisting of a vertical partition plate 1 and a pair of vertical support plates 2, 2 perpendicular to the partition plate 1.
When arranging the loop reinforcing bars 3, instead of disposing them on one side of the support plate 2 as in the conventional case, they are arranged across both the front and back sides of the support plate 2, and the loop reinforcing bars 3 are placed at each upper and lower end. Since the sections are welded to the front and back surfaces of the support plate 2, the pitch of the loop reinforcing bar welds can be increased to improve the concrete bearing strength of this section.
また前記したように、ループ鉄筋３が前記支持板２の表
裏両面に跨架されていることによって、上下方向に亙っ
て列設された各ループ鉄筋３を連続してラップさせて配
置することができ、このラップの度合を調整することに
よって単位長さ当りの剪断耐力を調整することができる
。Furthermore, as described above, since the loop reinforcing bars 3 span both the front and back sides of the support plate 2, each of the loop reinforcing bars 3 arranged in a row in the vertical direction can be arranged in a continuous lap manner. By adjusting the degree of wrapping, the shear strength per unit length can be adjusted.
更に前記ループ鉄筋３をラップさせることによって個々
のループ鉄筋３の一体化を図り、隣接する鉄筋籠の建込
時における施工性を向上しうるものである。Furthermore, by wrapping the loop reinforcing bars 3, the individual loop reinforcing bars 3 can be integrated, thereby improving workability when erecting adjacent reinforcing bar cages.
なお第４図乃至第６図に示す実施例においてはコ字型の
ループ鉄筋３が使用され、第７図乃至第９図に示す実施
例においてはＶ型状のループ鉄筋３が使用されている。In the embodiments shown in FIGS. 4 to 6, U-shaped loop reinforcing bars 3 are used, and in the embodiments shown in FIGS. 7 to 9, V-shaped loop reinforcing bars 3 are used. .
第１０図及び第１１図は本考案に係る鉛直継手を使用し
た地中連続壁構築方法を示し、地中連続壁構築用１エレ
メント１１を掘削してインターロッキングパイプ１２及
びジヨイントボックス１３を建込み、一側端に本案に係
る鉛直継手の取付けられた鉄筋能１４を建込み、コンク
リート１５を打設する。10 and 11 show a method for constructing an underground continuous wall using a vertical joint according to the present invention, in which one element 11 for constructing an underground continuous wall is excavated and an interlocking pipe 12 and a joint box 13 are constructed. The reinforcing bars 14 to which the vertical joint according to the present invention is attached are erected at one end, and concrete 15 is poured.
（第１０図参照）次いでインターロッキングパイプ１２
を引抜き隣接するエレメント１１′を掘削し、ジヨイン
トボックス１３を引抜いてエレメント１１′の他端にイ
ンターロッキングパイプ１２及びジヨイントボックス１
３を建込み、一側端に本案に係る鉛直継手の取付けられ
た鉄筋能１４′を建込み、コンクリート１５′を打設す
る。(See Figure 10) Next, the interlocking pipe 12
The interlocking pipe 12 and the joint box 1 are pulled out and the adjacent element 11' is excavated, the joint box 13 is pulled out, and the interlocking pipe 12 and the joint box 1 are connected to the other end of the element 11'.
3, a reinforcing bar 14' to which a vertical joint according to the present invention is attached is erected at one end, and concrete 15' is poured.
（第１１図参照）以下前記同様の工程を反覆して地中連
続壁を構築するものである。(See Fig. 11) The same steps as described above are repeated to construct an underground continuous wall.
なお前記エレメント１１にインターロッキングパイプ１
２及びジヨイントボックス１３を建込んだのち、両側端
に本案に係る鉛直継手を具えた鉄筋能を建込んでコンク
リートを打設し、これを１エレメント置きに施工し、同
各エレメント間に挾まれたエレメントを後から掘削して
鉄筋能を建込み、地中連続壁を構築する方法もある。Note that the interlocking pipe 1 is attached to the element 11.
2 and joint box 13, erect reinforcing bars with vertical joints according to the project at both ends, pour concrete, and construct this every other element, with gaps between each element. Another method is to excavate the removed elements later and install reinforcing bars to construct an underground continuous wall.
第１図乃至第３図は夫々従来の地中連続壁の鉛直継手の
斜面図、第４図は本案に係る地中連続壁の鉛直継手の一
実施例を示す斜面図、第５図はその正面図、第６図はそ
の側面図、第７図は他の実施例を示す斜面図、第８図は
その正面図、第９図はその側面図、第１０図及び第１１
図は夫々本案に係る鉛直継手を使用した地中連続壁の構
築方法の工程を示す横断平面図である。
１・・・・・・垂直仕切板、２・・・・・・垂直支持板
、３・・・・・・ループ鉄筋。Figures 1 to 3 are slope views of conventional vertical joints for underground walls, Figure 4 is a slope view showing an example of the vertical joint for underground walls according to the present invention, and Figure 5 is a slope view of the vertical joints for underground walls. 6 is a side view, FIG. 7 is a slope view showing another embodiment, FIG. 8 is a front view, FIG. 9 is a side view, and FIGS. 10 and 11.
Each figure is a cross-sectional plan view showing the process of constructing an underground continuous wall using vertical joints according to the present invention. 1... Vertical partition plate, 2... Vertical support plate, 3... Loop reinforcing bar.
Claims (1)
板２，２とよりなる継手金具における前記各支持板２の
表裏両面に互ってループ鉄筋３を跨架し、同ループ鉄筋
３の上下各端部を前記支持板２の表裏各面に夫々溶接し
てなることを特徴とする地中連続壁の鉛直継手。In a joint fitting consisting of a vertical partition plate 1 and a pair of vertical support plates 2, 2 perpendicular to the partition plate 1, loop reinforcing bars 3 are straddled across both the front and back surfaces of each support plate 2, and the loop reinforcing bars 3 are A vertical joint for an underground continuous wall, characterized in that the upper and lower ends of the support plate 2 are welded to the front and back surfaces of the support plate 2, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1140082U JPS5853322Y2 (en) | 1982-02-01 | 1982-02-01 | Vertical joints in underground walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1140082U JPS5853322Y2 (en) | 1982-02-01 | 1982-02-01 | Vertical joints in underground walls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58115525U JPS58115525U (en) | 1983-08-06 |
| JPS5853322Y2 true JPS5853322Y2 (en) | 1983-12-05 |
Family
ID=30024008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1140082U Expired JPS5853322Y2 (en) | 1982-02-01 | 1982-02-01 | Vertical joints in underground walls |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853322Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5166162B2 (en) * | 2008-08-08 | 2013-03-21 | 株式会社竹中工務店 | Retaining core and retaining wall using it |
-
1982
- 1982-02-01 JP JP1140082U patent/JPS5853322Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58115525U (en) | 1983-08-06 |
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