JP2565411Y2 - Reinforcing bar joint structure - Google Patents

Reinforcing bar joint structure

Info

Publication number
JP2565411Y2
JP2565411Y2 JP3292092U JP3292092U JP2565411Y2 JP 2565411 Y2 JP2565411 Y2 JP 2565411Y2 JP 3292092 U JP3292092 U JP 3292092U JP 3292092 U JP3292092 U JP 3292092U JP 2565411 Y2 JP2565411 Y2 JP 2565411Y2
Authority
JP
Japan
Prior art keywords
bar
reinforcing bar
bars
reinforcing
joint
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
Application number
JP3292092U
Other languages
Japanese (ja)
Other versions
JPH0589701U (en
Inventor
和直 杉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP3292092U priority Critical patent/JP2565411Y2/en
Publication of JPH0589701U publication Critical patent/JPH0589701U/en
Application granted granted Critical
Publication of JP2565411Y2 publication Critical patent/JP2565411Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は例えば本出願人の提案に
係る特開昭62−170663号に示す如き鉄筋ユニッ
ト工法に適用される網状鉄筋の継手構造に係るものであ
る。
BACKGROUND OF THE INVENTION The present invention relates to a joint structure for a mesh reinforcing bar applied to a reinforcing bar unit method as disclosed in Japanese Patent Application Laid-Open No. 62-170663 proposed by the present applicant.

【0002】[0002]

【従来の技術】網状鉄筋A,Bは図11及び図12に示
すように主筋pと直交筋qを直角に配筋して継手部を溶
接で接合して構成され、継手部が溶接で接合された金網
状に形成されるが、継手部には補強筋が必要となる。な
お接合方法には被接続網状鉄筋を図9に示す如く添え筋
網を介して接続する添え筋方式と、図10に示す如き、
直接方式とがある。図中p′、q′は継手筋の主筋及び
直交筋、r′は幅止筋等の継手部補強筋である。
2. Description of the Related Art As shown in FIGS. 11 and 12, rebars A and B are formed by arranging a main bar p and an orthogonal bar q at right angles and joining joints by welding, and joints are joined by welding. Although it is formed in a wire mesh shape, a reinforcing bar is required at the joint portion. In addition, as a joining method, a splicing method in which connected mesh rebars are connected via a splicing network as shown in FIG. 9 and a splicing method as shown in FIG.
There is a direct method. In the figure, p 'and q' are main bars and orthogonal bars of the joint bars, and r 'is a joint reinforcing bar such as a width stop bar.

【0003】[0003]

【考案が解決しようとする課題】従来工法は添え筋方
式、直接方式とも被接続網状鉄筋A,Bの重ね部分の主
筋p,p′同志の芯ずれeが生じ、この偏心距離eによ
り、応力伝達と同時に偏心曲げモーメントMが働き、図
7に示す如く添え筋方式においてはコンクリート接合部
材Cの中央で部材が破壊する。
In the conventional construction method, the main bars p and p 'of the overlapping portions of the mesh reinforcing bars A and B connected to each other have a misalignment e between the splicing method and the direct method. The eccentric bending moment M acts simultaneously with the transmission, and the member is broken at the center of the concrete joining member C in the reinforcing bar method as shown in FIG.

【0004】また図8に示すように直接方式において
は、偶力によってコンクリート部材Cに回転が生じ、継
手として成立しなくなる。本考案は前記従来技術の有す
る問題点に鑑みて提案されたもので、その目的とする処
は太径鉄筋による網状鉄筋の継手部において継手筋の芯
ずれによって生じる偏心曲げモーメントをなくした継手
構造を提供する点にある。
In the direct method, as shown in FIG. 8, the concrete member C is rotated by a couple and cannot be formed as a joint. SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems of the prior art, and a purpose thereof is to provide a joint structure which eliminates an eccentric bending moment caused by misalignment of a joint bar at a joint portion of a braided bar formed by a large-diameter bar. The point is to provide.

【0005】[0005]

【課題を解決するための手段】前記の目的を達成するた
め、本考案に係る網状鉄筋の継手構造は、断面積aの太
径鉄筋よりなる網状鉄筋に、主筋断面積が約1/2aの
網状の一双の添え筋またはラップ筋を、主筋が互いに外
側に位置するように前記網状鉄筋の主筋を挟んで対称位
置に対向配設して構成されている。
In order to achieve the above-mentioned object, a joint structure of a rebar according to the present invention comprises a rebar made of a large-diameter rebar having a cross-sectional area a and a main rebar having a cross section of about 1 / 2a. A pair of reticulated reinforcing bars or wrapping bars are arranged so as to face each other at symmetrical positions with respect to the main reinforcing bar of the reticulated reinforcing bar so that the main reinforcing bars are located outside each other.

【0006】[0006]

【作用】図9(添え筋方式)、図10(直接方式)に示
すように太径鉄筋による被接続網状鉄筋を従来のように
接続することなく、本考案によれば前記したように、網
状の一双の添え筋またはラップ筋を、夫々の主筋が前記
被接続網状鉄筋における主筋の外側対称位置を占めるよ
うに対向配設されたので前記被接続網状鉄筋の継手部に
おいて鉄筋とコンクリートとの付着力が増加し、また前
記添え筋またはラップ筋における溶接された直交筋のだ
ぼ効果が数多く働くことによって接合効果が増大され
る。従って本考案によれば従来の網状鉄筋の継手と同じ
継手長さで、幅止め筋等の特別な補強筋を配置すること
なく応力の円滑の伝達が行なわれ、継手部の破壊が防止
される。
According to the present invention, as shown in FIGS. 9 (supplemental bar system) and FIG. 10 (direct system), the connected reinforcing bar of the large-diameter reinforcing bar does not need to be connected as in the prior art. The two reinforcing bars or the lap bars are arranged to face each other so that the main bars occupy the outer symmetrical positions of the main bars in the connected mesh bars, so that the reinforcing bars and the concrete are attached at the joints of the connected mesh bars. The joining effect is increased by increasing the force of application and the numerous dowel effects of the welded orthogonal streaks in the stitch or lap streaks. Therefore, according to the present invention, smooth transmission of stress is performed with the same joint length as that of the conventional braided steel joint without arranging a special reinforcing bar such as a width stop bar, and the joint is prevented from being broken. .

【0007】更にまた本考案によれば、前記被接続網状
鉄筋を接続するラップ筋、または添え筋は、同網状鉄筋
の主筋断面積の約1/2の網状鉄筋より構成されている
ので、細径の網状鉄筋の使用が可能で、網状鉄筋の配筋
間隔をかえることなく、被接続網状鉄筋を向い合わせに
対称に配置することによって、網状鉄筋間の応力の伝達
が円滑に行なわれ、継手部の破壊が防止される。
Further, according to the present invention, the wrapping bar or the splicing bar connecting the connected rebar is constituted by a rebar having approximately half the cross-sectional area of the main bar of the rebar. It is possible to use mesh reinforcing bars of different diameters, and without changing the arrangement of the reinforcing bars, by symmetrically arranging the connected reinforcing bars facing each other, the stress between the reinforcing bars is transmitted smoothly, and The destruction of the part is prevented.

【0008】[0008]

【実施例】以下本考案を図示の実施例について説明す
る。図1は添え筋方式による網状鉄筋A及びBの継手構
造を示し、1、1′及び2、2′は夫々断面積がaの太
径鉄筋よりなる前記各網状鉄筋の主筋及び直交筋であ
る。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 shows a joint structure of reticulated rebars A and B according to the splicing method, and reference numerals 1, 1 'and 2, 2' denote main rebars and orthogonal rebars of the respective rebars each having a cross section of a large diameter rebar. .

【0009】Dは網状の添え筋で、断面積が約1/2a
の主筋3及び直交筋4より構成され、前記網状鉄筋A,
Bの主筋1、1′を挟んで対称位置に対向配設されてい
る。図2は本考案を直接方式を採用しラップ筋による継
手構造を示し、前記実施例と同じ作用をする部分には同
一符号が付されている。図示の実施例は前記したように
構成されているので、継手部において同継手部に後打ち
されるコンクリートEと鉄筋との付着力が増加し、また
溶接された直交筋2のだぼ効果が数多く働き、しかも継
手筋の芯ずれによって生ずる偏心曲げモーメントをなく
すことができるため、従来の網状鉄筋の継手と同じ継手
長さで、幅止め筋等の補強筋を使用することなく応力伝
達を可能とすることができ、継手部の破壊を防止するこ
とができる。
[0009] D is a reticulated reinforcing bar having a sectional area of about 1 / 2a.
, And the reticulated reinforcing bars A,
B are opposed to each other at symmetrical positions with the main bars 1, 1 'of B interposed therebetween. FIG. 2 shows a joint structure using a lap streak employing the direct method of the present invention, and portions having the same functions as those of the above embodiment are denoted by the same reference numerals. Since the illustrated embodiment is configured as described above, the adhesive force between the concrete E and the reinforcing steel to be post-punched at the joint at the joint increases, and the dowel effect of the welded orthogonal bar 2 is reduced. It works a lot and eliminates the eccentric bending moment caused by the misalignment of the joint bar, so it can transmit stress without the use of reinforcing bars such as width stop bars, with the same joint length as the conventional mesh bar joint. And the joint can be prevented from being broken.

【0010】また本考案によれば図1、図2に示すよう
に、継手部の添え筋またはラップ筋の鉄筋断面積を1/
2とすることができるので、細径の網状鉄筋の使用が可
能で、網状鉄筋の配筋間隔を変えることなく、網状鉄筋
を向い合わせに対称に配置することによって網状鉄筋間
の応力の伝達を円滑にして継手部の破壊を防止する。な
お、添え筋またはラップ筋を主筋と同径の鉄筋を使用の
場合には、鉄筋量が2倍になるので、規格降伏点を1/
2とすることができる。
According to the present invention, as shown in FIGS. 1 and 2, the cross-sectional area of the reinforcing bar or the lap bar of the joint is reduced by 1 /.
2, it is possible to use a small-diameter braided reinforcing bar, and the stress transmission between the braided reinforcing bars can be performed by symmetrically arranging the braided reinforcing bars facing each other without changing the arrangement of the reinforcing bars. Smoothly prevent joint breakage. In addition, when the reinforcing bar or the wrapping bar uses a reinforcing bar having the same diameter as the main bar, the reinforcing bar amount is doubled.
It can be 2.

【0011】図3及び図4は本考案をシングル配筋のプ
レキャスト部材X、Yの接合に適用した場合を示し、図
3は添え筋方式による接合構造を、図4は直接方式によ
る接合構造を示し、図中3は継手部の後打ちコンクリー
トである。図5及び図6は本考案をダブル配筋のプレキ
ャスト部材X、Yの接合に適用した場合を示し、図5は
添え筋方式による接合構造を、図6は直接方式による接
合構造を夫々示し、図中前記各実施例と同じ作用をする
部分には同一符号が附されている。
FIGS. 3 and 4 show a case where the present invention is applied to the joining of precast members X and Y with a single reinforcing bar. FIG. 3 shows a joining structure by a splicing method, and FIG. 4 shows a joining structure by a direct method. In the figure, reference numeral 3 denotes post-cast concrete of the joint portion. 5 and 6 show the case where the present invention is applied to the joining of the precast members X and Y of the double reinforcing arrangement, FIG. 5 shows the joining structure by the splicing method, and FIG. 6 shows the joining structure by the direct method, respectively. In the drawings, the same reference numerals are given to the portions that operate in the same manner as the above-described embodiments.

【0012】[0012]

【考案の効果】本考案は前記したように構成されている
ので、太径鉄筋による網状鉄筋の継手部における応力の
伝達が円滑に行なわれ、継手部の補強筋が不用になるた
め、同部の過密配筋が緩和され、コンクリート打設が容
易になり、前記網状鉄筋の継手部に生じる偏心曲げモー
メントの発生がなく、継手部の破壊が防止される。
[Effects of the Invention] Since the present invention is constructed as described above, the transmission of stress at the joint portion of the mesh reinforcing bar by the large-diameter reinforcing bar is performed smoothly, and the reinforcing bar at the joint portion becomes unnecessary. Overfilling is reduced, concrete is easily cast, no eccentric bending moment occurs at the joint portion of the mesh reinforcing bar, and the joint portion is prevented from being broken.

【0013】また本考案はシングル配筋にも採用でき、
スラブの配筋にも適用され、効率のよい鉄筋ユニット工
法が可能となり、大幅な工期短縮が期待できる。
Also, the present invention can be adopted for single bar arrangement,
It is also applied to slab arrangements, enabling efficient rebar unit construction methods and greatly shortening the construction period.

【図面の簡単な説明】[Brief description of the drawings]

【図1】添え筋方式による本考案の網状鉄筋の継手構造
を示す平面図である。
FIG. 1 is a plan view showing a joint structure of a braided reinforcing bar according to the present invention using a splicing method.

【図2】直接方式による本考案の網状鉄筋の継手構造を
示す平面図である。
FIG. 2 is a plan view showing a joint structure of the mesh reinforcing bar of the present invention by a direct method.

【図3】シングル配筋のプレキャスト部材の接合に前記
添え筋方式を適用した横断平面図である。
FIG. 3 is a cross-sectional plan view in which the above-described reinforcing bar method is applied to joining of a precast member having a single reinforcing bar.

【図4】シングル配筋のプレキャスト部材の接合に前記
直接方式を適用した横断平面図である。
FIG. 4 is a cross-sectional plan view in which the direct method is applied to joining of a single reinforcing bar precast member.

【図5】ダブル配筋のプレキャスト部材の接合に前記添
え筋方式を適用した横断平面図である。
FIG. 5 is a cross-sectional plan view in which the above-described reinforcing bar method is applied to joining of a precast member having double reinforcing bars.

【図6】ダブル配筋のプレキャスト部材の接合に前記直
接方式を適用した横断平面図である。
FIG. 6 is a cross-sectional plan view in which the direct method is applied to the joining of a precast member having a double bar arrangement.

【図7】添え筋方式による網状鉄筋の接合部に偏心曲げ
モーメントが生起する状態を示す説明図である。
FIG. 7 is an explanatory view showing a state in which an eccentric bending moment is generated at a joint portion of a braided reinforcing bar according to a reinforcing bar method.

【図8】直接方式による網状鉄筋の接合部に偏心曲げモ
ーメントが生起する状態を示す説明図である。
FIG. 8 is an explanatory diagram showing a state in which an eccentric bending moment is generated at a joint portion of a braided reinforcing bar by a direct method.

【図9】従来の網状鉄筋の継手部の一例を示す平面図で
ある。
FIG. 9 is a plan view showing an example of a joint portion of a conventional braided reinforcing bar.

【図10】従来の網状鉄筋の継手部の他の例を示す平面
図である。
FIG. 10 is a plan view showing another example of the joint portion of the conventional braided reinforcing bar.

【図11】網状鉄筋の一例を示す正面図である。FIG. 11 is a front view showing an example of a mesh reinforcing bar.

【図12】網状鉄筋の他の例を示す正面図である。FIG. 12 is a front view showing another example of the mesh reinforcing bar.

【符号の説明】[Explanation of symbols]

A 網状鉄筋 B 網状鉄筋 C ラップ筋網 D 添え筋 a 鉄筋断面積 p 主筋 q 直交筋 p′ 継手筋の主筋 q′ 継手筋の直交筋 1 主筋 1′ 主筋 2 直交筋 2′ 直交筋 E 後打ちコンクリート A Reinforcing bar B Reinforcing bar C Lap rebar D D Splice bar a Rebar cross section p Main bar q Cross bar p 'Main bar of joint bar q' Cross bar of cross bar 1 Main bar 1 'Main bar 2 Cross bar 2' Cross bar E Strike concrete

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 断面積aの太径鉄筋よりなる網状鉄筋
に、主筋断面積が約1/2aの網状の一双の添え筋また
はラップ筋を、該主筋が互いに外側に位置するように前
記網状鉄筋の主筋を挟んで対称位置に対向配設してなる
ことを特徴とする網状鉄筋の継手構造。
1. A reinforcing bar comprising a large-diameter reinforcing bar having a cross-sectional area a, a pair of reinforcing bars or lap bars having a main bar cross-sectional area of about 1 / 2a, and the net-shaped reinforcing bars being arranged so that the main bars are located outside each other. What is claimed is: 1. A joint structure for a reticulated reinforcing bar, which is provided oppositely to a symmetrical position across a main reinforcing bar.
JP3292092U 1992-05-19 1992-05-19 Reinforcing bar joint structure Expired - Lifetime JP2565411Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3292092U JP2565411Y2 (en) 1992-05-19 1992-05-19 Reinforcing bar joint structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3292092U JP2565411Y2 (en) 1992-05-19 1992-05-19 Reinforcing bar joint structure

Publications (2)

Publication Number Publication Date
JPH0589701U JPH0589701U (en) 1993-12-07
JP2565411Y2 true JP2565411Y2 (en) 1998-03-18

Family

ID=12372341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3292092U Expired - Lifetime JP2565411Y2 (en) 1992-05-19 1992-05-19 Reinforcing bar joint structure

Country Status (1)

Country Link
JP (1) JP2565411Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09189198A (en) * 1995-11-07 1997-07-22 Taisei Corp Lining method of tunnel
JP6964285B2 (en) * 2017-04-13 2021-11-10 育弘 松崎 Reinforced concrete foundation slab reinforcement structure and set of reinforcing bar units

Also Published As

Publication number Publication date
JPH0589701U (en) 1993-12-07

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