JP2699199B2 - Closing steel sheet pile rebar - Google Patents
Closing steel sheet pile rebarInfo
- Publication number
- JP2699199B2 JP2699199B2 JP1162571A JP16257189A JP2699199B2 JP 2699199 B2 JP2699199 B2 JP 2699199B2 JP 1162571 A JP1162571 A JP 1162571A JP 16257189 A JP16257189 A JP 16257189A JP 2699199 B2 JP2699199 B2 JP 2699199B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- sheet pile
- rebar
- steel
- closing
- 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
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、土木・建築分野におけるコンクリート構築
物用の鉄筋に関し、詳しくは閉合用鋼矢板鉄筋に係る。The present invention relates to a reinforcing steel bar for concrete structures in the field of civil engineering and construction, and more particularly to a steel sheet pile reinforcing steel bar for closing.
（従来の技術） 周知の通り、コンクリート構造物たとえばビルディン
グの基礎を構築するには、地盤に泥水掘削法によって適
宜幅の掘削溝を穿設し、ついで掘削溝中に鉄筋篭を挿入
しコンクリートを打設することにより連続地中壁を形成
し、基礎として利用する方法が一般的に採用されてい
る。(Prior Art) As is well known, in order to construct the foundation of a concrete structure, for example, a building, an excavation groove having an appropriate width is drilled in the ground by a muddy water excavation method, and then a reinforcing steel cage is inserted into the excavation groove to remove concrete. A method of forming a continuous underground wall by casting and using it as a foundation is generally adopted.
鉄筋篭は棒鋼を適宜に組合せて緊縛し、籠状に形成す
るため、寸法が大形化した場合、特に製作に熟練が必要
でコスト高になり、また重量が嵩むためにハンドリング
が困難で施行費が高くなり、さらに建込みにあたり形態
的な変形が生じやすいため、慎重な作業を必要とするな
ど、工費が高騰しやすいという課題がある。そこで、近
時、第４図、第５図に示すようなＩもしくはＨ形鋼１の
フランジ2a、2bの両側縁2a1、2a1、2b1,2b2に継手3a〜3
dを溶着した鋼矢板４や、Ｈ形鋼5a、5bを溶接し、箱形
に形成した本体６のフランジ7a、7bの両側縁7a1、7a2、
7b1、7b2に継手8a〜8dを溶着した箱形鋼矢板９を継手連
結して大寸法の鋼矢板鉄筋とし、建込みを能率化すると
共に連続地中壁の強度を高める手段が採用されるように
なった。Reinforced baskets are appropriately combined with steel bars and tied together to form a basket. Therefore, when the dimensions are large, in particular, the production requires skill and costs are high. Therefore, there is a problem that construction costs are likely to rise, such as requiring careful work, since morphological deformation is apt to occur when the building is built. Therefore, recently, Fig. 4, 5, as shown in Figure I or H-shaped steel 1 of the flanges 2a, the opposite side edges 2a 1 2b, 2a 1, 2b 1, 2b 2 to the joint 3a~3
d) welded steel sheet pile 4 and H-shaped steels 5a and 5b are welded to form a box-shaped body 6 with flanges 7a and 7b on both sides 7a 1 , 7a 2 ,
A box-shaped steel sheet pile 9 in which joints 8a to 8d are welded to 7b 1 and 7b 2 is jointed to form a large-sized steel sheet pile rebar, and means for increasing the efficiency of construction and increasing the strength of the continuous underground wall is adopted. It became so.
また、箱型高矢板９としては、前述の例のほか角鋼管
の角部に継手を溶着したものも採用されている。Further, as the box-shaped high sheet pile 9, in addition to the above-described example, one obtained by welding a joint to a corner of a square steel pipe is employed.
（発明が解決しようとする課題） 前記鋼矢板鉄筋は、予め工場あるいは加工場で製造
し、建込み現場に輸送し、継手嵌合によって単位鋼矢板
を連結するため、熟練を必要とせず、工期が短くてすむ
うえに、形態的な歪みや曲りが生ずる恐れが少ないた
め、構造的にも信頼性が高い。しかし、第６図に示すよ
うに、たとえば井筒形成用の連続地中壁の場合、鉄筋閉
合に課題が生ずることが多い。即ち、矢印10a、10bのよ
うに左右両方から箱型鋼矢板11a〜11dを連結する際、１
点鎖線で囲まれた残された区域12の寸法が単位箱型鋼矢
板の寸法に一致しないことが多い。(Problems to be Solved by the Invention) Since the steel sheet pile rebar is manufactured in advance in a factory or a processing plant, transported to a construction site, and unit steel sheet piles are connected by joint fitting, no skill is required. Is short, and there is little possibility of morphological distortion or bending, so that the structure is highly reliable. However, as shown in FIG. 6, for example, in the case of a continuous underground wall for forming a well pipe, a problem often occurs in rebar closure. That is, when connecting the box-shaped steel sheet piles 11a to 11d from both right and left as shown by arrows 10a and 10b, 1
In many cases, the dimensions of the remaining area 12 surrounded by the chain line do not match the dimensions of the unit box-type steel sheet pile.
この際、その寸法に適合するように単位箱型鋼矢板を
加工して閉合用鋼矢板鉄筋を製作しなければならない
が、加工が困難で、継手嵌合が適切に行なわれないとい
う課題がある。At this time, the unit box-type steel sheet pile must be processed to conform to the dimensions to manufacture the steel sheet pile rebar for closing, but there is a problem that the processing is difficult and the joint fitting is not properly performed.
また、区域12の寸法に適合するような籠形鉄筋を製造
して建込む手段は、その部分が構造的弱点になりやすい
という課題がある。In addition, the means for manufacturing and building a basket-shaped rebar that fits the dimensions of the area 12 has a problem that the part is likely to be a structural weak point.
本発明の目的は、寸法裕度が大きく、鉄筋材として構
造的な弱点となることなく、優れた閉合機能を発揮する
閉合用鋼矢板鉄筋を提供することにあり、他の目的は、
予め工場あるいは加工場で事前に製造でき、頑丈で運搬
および建込みが容易な閉合用鋼矢板鉄筋を提供すること
にある。An object of the present invention is to provide a steel sheet pile rebar for closing which has a large dimensional allowance and does not become a structural weakness as a reinforcing bar material, and which exhibits an excellent closing function.
An object of the present invention is to provide a steel sheet pile rebar for closing which can be manufactured in advance in a factory or a processing plant, and which is robust and easy to transport and set up.
（課題を解決するための手段） 本発明は、両側縁に継手を備えたＨあるいはＩ形鋼矢
板を複数継手連結して連続壁を構築するための鋼矢板鉄
筋であって、フランジの両側縁の対向する片側にハニカ
ム継手を有し、他側に係合用鉄筋を備えたＩもしくはＨ
形鋼からなる閉合用鋼矢板鉄筋である。ハニカム継手が
直線型鋼矢板のウエブハニカム半截体からなること、係
合鉄筋がループ筋であることは好ましい。(Means for Solving the Problems) The present invention relates to a steel sheet pile rebar for connecting a plurality of H or I-shaped steel sheet piles provided with joints on both side edges to form a continuous wall, wherein both side edges of a flange are provided. I or H having a honeycomb joint on one side and a rebar for engagement on the other side
It is a steel sheet pile rebar for closing made of shaped steel. It is preferable that the honeycomb joint is formed of a web honeycomb half-section of a straight steel sheet pile, and the engaging reinforcing bar is a loop bar.
（作用） 本発明の閉合用鋼矢板鉄筋は、ＩもしくはＨ形鋼を本
体とするため構造的に非常に頑丈で、運搬、建込みに当
り変形や歪が生ずる恐れが無い。(Operation) The steel sheet pile rebar for closing of the present invention is made of I or H-shaped steel as a main body, so it is structurally very strong, and there is no possibility of deformation or distortion in transportation and installation.
また、本体のフランジの両側縁の対向する片側にハニ
カム継手を備えているため、単位鋼矢板および箱型鋼矢
板との継手係合が容易であり、さらに他側には係合鉄筋
たとえばループ筋を備え、対をなすように設置されるも
う一方の閉合用鋼矢板鉄筋のループ筋と重なりあうよう
に係合することが可能であり、ループ筋は突出長さが適
宜に設定できるため、高い寸法裕度を有し、いかなる場
合でも閉合が不能になる恐れは無い。Further, since the honeycomb joints are provided on one of the opposite sides of the both side edges of the flange of the main body, joint engagement with the unit steel sheet pile and the box-type steel sheet pile is easy, and further, an engaging reinforcing bar such as a loop bar is provided on the other side. It is possible to engage so as to overlap with the loop bar of the other steel sheet pile reinforcing bar that is installed as a pair, and the loop bar can be set to a protruding length appropriately, so that it has a high dimension. With a margin, there is no danger that closing will not be possible in any case.
また、ハニカム継手が直線型鋼矢板のウエブハニカム
半截体の場合は、継手が全強継手であるため機械的強度
が高く、継手係合の信頼性が高められる。Further, when the honeycomb joint is a half-cut web honeycomb made of a straight steel sheet pile, since the joint is an all-strong joint, the mechanical strength is high and the reliability of joint engagement is enhanced.
さらに、ハニカム継手は開孔部を有しているのでコン
クリートの充填性が良く、高い施行能率と共に空隙の無
い地中壁の構築が期待できる。Furthermore, since the honeycomb joint has an opening, it has good filling properties of concrete, and can be expected to have a high working efficiency and a construction of an underground wall without voids.
（実施例） 第１図、第２図は、本発明に係る閉合用鋼矢板鉄筋13
a、13bの係合状態を示す部分切欠斜視図および平面図で
ある。(Example) FIGS. 1 and 2 show a steel sheet pile reinforcing steel 13 for closing according to the present invention.
It is the partially notched perspective view and top view which show the engagement state of 13a, 13b.
Ｈ形鋼14a、14bのフランジ15a1、15a2、15b1、15b2の
片側の側縁16a1、16a2、16b1、16b2には、それぞれ直線
型鋼矢板のウエブハニカム半截体からなるハニカム継手
17a〜17dが溶着されており、さらに他側の側縁18a1、18
a2、18b1、18b2には、ループ筋19a〜19lが溶着されてい
る。H-beams 14a, flange 15a 1 of 14b, 15a 2, 15b 1, 15b 2 on one side of the side edges 16a 1, 16a 2, 16b 1 , to 16b 2, the honeycomb respectively consisting web honeycomb half-cut of linear sheet piles Fitting
17a~17d it is welded further other side side edge 18a 1, 18
The a 2, 18b 1, 18b 2 , the loop muscle 19a~19l is welded.
閉合用鋼矢板鉄筋13a、13bのループ筋19a〜19fはルー
プ筋19g〜19lと突き当らないように、それぞれフランジ
15a1、15a2と15b1、15b2の裏と表、すなわち内側と外側
に溶着してあるので、閉合用鋼矢板鉄筋13a、13bの相対
間隔は自由に変更でき、したがってループ筋19a〜19lの
ラップ距離はそれに伴なって自由に変えられる。The loop bars 19a to 19f of the steel sheet pile reinforcing bars 13a and 13b for closing use flanges so that they do not strike the loop bars 19g to 19l.
Since 15a 1, 15a 2 and 15b 1, front and back of 15b 2, i.e. it is welded to the inside and outside, closing steel sheet pile rebar 13a, relative spacing 13b is free to modify, thus loop muscle 19a~19l The lap distance can be freely changed accordingly.
ループ筋19a〜19lの突出長さを単位鋼矢板の横幅つま
り継手先端間距離に応じて、たとえば0.8〜0.3倍程度に
設定しておけば、閉合のための距離調整を充分に行なう
ことが可能である。If the protrusion length of the loop streaks 19a to 19l is set to, for example, about 0.8 to 0.3 times according to the width of the unit steel sheet pile, that is, the distance between the joint tips, the distance adjustment for closing can be sufficiently performed. It is.
以上は係合鉄筋としてループ筋を用いる実施例である
が、これに限定することなく、棒状に突出したり、鉤状
に曲げた鉄筋を採用することも可能である。しかし、ル
ープ筋19a〜19lが係合機能が優れ、鉄筋材としてコンク
リートとの付着性も良く、ループ筋のようなリング状の
突出鉄筋の採用が好ましい。The above is the embodiment using the loop reinforcing bar as the engaging reinforcing bar. However, the present invention is not limited to this, and it is also possible to employ a bar that protrudes in a bar shape or is bent in a hook shape. However, the loop bars 19a to 19l have an excellent engagement function, have good adhesion to concrete as a reinforcing bar material, and it is preferable to use a ring-shaped projecting reinforcing bar such as a loop bar.
なお、第２図において、22a、22bは連結筋を示す。 In FIG. 2, reference numerals 22a and 22b denote connecting bars.
次に、ＩもしくはＨ形鋼として第３図に示すようなウ
エブ20にコンクリート流出孔21a〜21dを有するものを採
用した場合、コンクリートの充填効率が良く、閉合用鋼
矢板鉄筋としての機能がさらに向上する。Next, when a web 20 having concrete outflow holes 21a to 21d as shown in FIG. 3 is adopted as the I or H-shaped steel, the concrete filling efficiency is good and the function as a steel sheet pile reinforcing steel for closing is further improved. improves.
（発明の効果） 本発明の閉合用鋼矢板鉄筋は、製作が容易なうえに施
行性が良く、閉合機能が高いため、実用的に極めて有用
であり、運搬・建込みに熟練を必要としないので連続地
中壁のような大規模なコンクリート構造物築造のための
鉄筋施行コストを大幅に引き下げることが可能で、しか
も機械的強度が高いので、その効果は多大である。(Effect of the Invention) The steel sheet pile rebar for closing of the present invention is easy to manufacture, has good workability, and has a high closing function, so it is extremely useful in practice, and does not require skill for transportation and installation. Therefore, it is possible to drastically reduce the cost of reinforcing bars for building large-scale concrete structures such as continuous underground walls, and the mechanical strength is high, so the effect is great.
第１図および第２図は本発明に係る閉合用鋼矢板鉄筋の
部分切欠斜視図および平面図、 第３図はウエブコンクリート流出孔を有するＨ形鋼の正
面図、 第４図および第５図は従来の鉄筋用の鋼矢板および箱型
鋼矢板の平面図、 第６図は掘削溝における鉄筋閉合を説明するための正面
図である。 １……ＩもしくはＨ形鋼、2a、2b……フランジ、2a1、2
a2、2b1、2b2……側縁、3a〜3d……継手、４……鋼矢
板、5a、5b……Ｈ形鋼、６……本体、7a、7b……フラン
ジ、7a1、7a2、7b1、7b2……側縁、8a〜8d……継手、９
……箱型鋼矢板、10a、10b……矢印、11a〜11d……箱型
鋼矢板、12……区域、13a、13b……閉合用鋼矢板鉄筋、
14a、14b……Ｈ形鋼、15a1、15a2、15b1、15b2……フラ
ンジ、16a1、16a2、16b1、16b2……側縁、17a〜17d……
ハニカム継手、18a1、18a2、18b1、18b2……側縁、19a
〜19l……ループ筋、20……ウエブ、21a〜21d……流出
孔、22a、22b……連結筋。1 and 2 are a partially cutaway perspective view and a plan view of a steel sheet pile reinforcing bar according to the present invention, FIG. 3 is a front view of an H-section steel having a web concrete outlet hole, and FIGS. 4 and 5. Is a plan view of a conventional steel sheet pile and a box-type steel sheet pile for rebar, and FIG. 6 is a front view for explaining rebar closure in an excavation groove. 1 ...... I or H-shaped steel, 2a, 2b ...... flange, 2a 1, 2
a 2 , 2b 1 , 2b 2 ... side edges, 3a to 3d ... joints, 4 ... steel sheet piles, 5a, 5b ... H-shaped steel, 6 ... body, 7a, 7b ... flange, 7a 1 , 7a 2, 7b 1, 7b 2 ...... side edges, 8a~8d ...... fittings, 9
…… box steel sheet piles, 10a, 10b …… arrows, 11a-11d …… box steel sheet piles, 12 …… areas, 13a, 13b …… steel bars for closing,
14a, 14b ...... H-shaped steel, 15a 1, 15a 2, 15b 1, 15b 2 ...... flange, 16a 1, 16a 2, 16b 1, 16b 2 ...... side edges, 17a~17d ......
Honeycomb joint, 18a 1, 18a 2, 18b 1, 18b 2 ...... side edges, 19a
1919l: Loop streaks, 20: Web, 21a to 21d: Outflow holes, 22a, 22b: Connecting streaks.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭54−113916（ＪＰ，Ａ) 特開 昭62−133209（ＪＰ，Ａ) 特開 昭62−291319（ＪＰ，Ａ) 実開 昭56−13140（ＪＰ，Ｕ) 実開 昭61−80820（ＪＰ，Ｕ) 実公 昭40−30120（ＪＰ，Ｙ１) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-113916 (JP, A) JP-A-62-133209 (JP, A) JP-A-62-291319 (JP, A) 13140 (JP, U) Japanese Utility Model Showa 61-80820 (JP, U) Japanese Utility Model Showa 40-30120 (JP, Y1)
Claims (3)
板を複数継手連結して連続壁を構築するための鋼矢板鉄
筋であって、フランジの両側縁の対向する片側にハニカ
ム継手を有し、他側に係合用鉄筋を備えたＩもしくはＨ
形鋼からなる閉合用鋼矢板鉄筋。1. A steel sheet pile rebar for connecting a plurality of H or I-shaped sheet piles having joints on both side edges to form a continuous wall, wherein a honeycomb joint is provided on one side of the flange opposite to both sides. I or H with engaging rebar on the other side
Closing steel sheet pile rebar made of shaped steel.
カム半截体からなる請求項１記載の閉合用鋼矢板鉄筋。2. A steel sheet pile rebar for closing according to claim 1, wherein the honeycomb joint comprises a web honeycomb half cut piece of a straight steel sheet pile.
閉合用鋼矢板鉄筋。3. The steel sheet pile reinforcing steel according to claim 1, wherein the engaging reinforcing steel is a loop reinforcing steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1162571A JP2699199B2 (en) | 1989-06-27 | 1989-06-27 | Closing steel sheet pile rebar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1162571A JP2699199B2 (en) | 1989-06-27 | 1989-06-27 | Closing steel sheet pile rebar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0328413A JPH0328413A (en) | 1991-02-06 |
| JP2699199B2 true JP2699199B2 (en) | 1998-01-19 |
Family
ID=15757120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1162571A Expired - Lifetime JP2699199B2 (en) | 1989-06-27 | 1989-06-27 | Closing steel sheet pile rebar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2699199B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2660888B2 (en) * | 1992-05-28 | 1997-10-08 | 新日本製鐵株式会社 | Reinforcing bars for concrete and rebar for concrete |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54113916A (en) * | 1978-02-24 | 1979-09-05 | Maeda Construction | Joint among wall of underground continuous wall |
-
1989
- 1989-06-27 JP JP1162571A patent/JP2699199B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328413A (en) | 1991-02-06 |
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