JPH11248611A - Fixing tool for irregular shaped reinforcing steel tensile test machine - Google Patents

Fixing tool for irregular shaped reinforcing steel tensile test machine

Info

Publication number
JPH11248611A
JPH11248611A JP4957998A JP4957998A JPH11248611A JP H11248611 A JPH11248611 A JP H11248611A JP 4957998 A JP4957998 A JP 4957998A JP 4957998 A JP4957998 A JP 4957998A JP H11248611 A JPH11248611 A JP H11248611A
Authority
JP
Japan
Prior art keywords
fixture
frame
hole
deformed
fastening members
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.)
Granted
Application number
JP4957998A
Other languages
Japanese (ja)
Other versions
JP3913886B2 (en
Inventor
Ritsu Uchiumi
立 内海
Shigeki Iwabuchi
茂樹 岩渕
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.)
SankoTechno Co Ltd
Original Assignee
SankoTechno Co Ltd
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 SankoTechno Co Ltd filed Critical SankoTechno Co Ltd
Priority to JP04957998A priority Critical patent/JP3913886B2/en
Publication of JPH11248611A publication Critical patent/JPH11248611A/en
Application granted granted Critical
Publication of JP3913886B2 publication Critical patent/JP3913886B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a fixing tool for an irregular shaped reinforcing steel tensile test machine facilitating its detaching after a test. SOLUTION: This fixing tool for an irregular shaped reinforcing steel tensile test machine is formed of a box-shaped frame body 1 having a through hole 3 one side confronting faces 4, 5 of which slant toward a lower center in the central part, and one pair of wedge-shaped fastening members 2, 2' clamping an irregular shaped reinforcing steel from both right and left sides, and inserted into the through hole 3. The fastening members are formed so that the outside tapered faces 6, 7 thereof touching slide on the confronting faces of the through holes 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、異形鉄筋の引張耐
力の試験機に使用される異形鉄筋の固定具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for deformed reinforcing bars used in a testing machine for tensile strength of deformed reinforcing bars.

【0002】[0002]

【従来の技術】コンクリートに埋設した異形鉄筋(以
下、異形筋という。)の引張耐力の試験機は、図5
(a)、(b)に示すように、異形筋30に試験機31
の中心貫通孔43を挿通させて埋設面上に配置し、試験
機31の上方で異形筋30に固定具44を取り付け、試
験機31の押上部材32を油圧等で押上げてその上面を
固定具44に圧接させ、固定具44と埋設面の間に圧縮
力をかけて異形筋30の引張耐力の試験を行っている。
上記試験機において、耐力測定は、圧力計を用いたり、
試験機に組み込まれた中心貫通孔を有する荷重測定部を
用いて行う。
2. Description of the Related Art FIG. 5 shows a test machine for tensile strength of deformed reinforcing bars (hereinafter referred to as deformed bars) embedded in concrete.
As shown in (a) and (b), the testing machine 31 is attached to the deformed muscle 30.
Through the center through-hole 43 of the tester 31 and placed on the buried surface, the fixing tool 44 is attached to the deformed muscle 30 above the tester 31, and the push-up member 32 of the tester 31 is pushed up by hydraulic pressure or the like to fix the upper surface thereof The test is performed on the tensile strength of the deformed muscle 30 by applying pressure to the fixture 44 and applying a compressive force between the fixture 44 and the buried surface.
In the above testing machine, the proof stress measurement uses a pressure gauge,
The measurement is performed using a load measuring unit having a center through hole incorporated in the testing machine.

【0003】従来の上記固定具として、一般に図6に示
すようなものが知られている。この固定具は、中央部に
形成された切頭円錐形の貫通孔53を有する円筒状の枠
体51(以下、円筒枠体という。)と、側面が同じく円
錐形に形成され、異形筋を半円筒状の凹溝58,59で
左右両側から挟持する一対の楔形の締結部材56,57
から構成されている。
[0003] As the conventional fixing device, a fixing device as shown in FIG. 6 is generally known. This fixture has a cylindrical frame 51 (hereinafter referred to as a cylindrical frame) having a truncated conical through-hole 53 formed in the center, and a side surface also formed in a conical shape, and deformed streaks are formed. A pair of wedge-shaped fastening members 56, 57 sandwiched from both left and right sides by semi-cylindrical concave grooves 58, 59
It is composed of

【0004】この固定具44の異形筋30への取り付け
は、図5、図6に示すように、まず、円筒枠体51を、
異形筋30に挿通させて、試験機31の上面に載置し、
次いで異形筋30の所望箇所に、締結部材56,57を
左右両側から挟持状に当てがい、その外側に円筒枠体5
1を嵌合させてその貫通孔内で、締結部材56,57の
外周面と貫通孔の内周面を摺動させて行う。
As shown in FIGS. 5 and 6, first, the cylindrical frame 51 is attached to the deformed muscle 30 by attaching
It is inserted through the deformed muscle 30, placed on the upper surface of the testing machine 31,
Next, the fastening members 56 and 57 are applied to desired portions of the deformed muscle 30 from both right and left sides in a sandwiching manner, and the cylindrical frame 5
1 is fitted, and the outer peripheral surfaces of the fastening members 56 and 57 and the inner peripheral surfaces of the through holes are slid in the through holes.

【0005】試験に際しては、図5(b)に示すよう
に、試験機31に内蔵する円筒状の押上部材32が、油
圧等の手段により試験機31の上面から突出して、円筒
枠体51の下面に当接しA方向に押上げると、締結部材
56,57の外周面が、B方向に押圧されるので、固定
具44は、異形筋30に強固に固定され、さらに、押上
部材32が上昇することにより、固定具44と異形筋3
0の埋設面間、即ち、試験機31に圧縮力がかかり、異
形筋の引張荷重が測定される。
At the time of the test, as shown in FIG. 5 (b), a cylindrical push-up member 32 built in the tester 31 projects from the upper surface of the tester 31 by means of hydraulic pressure or the like, and the cylindrical frame 51 is When the upper surface comes into contact with the lower surface and is pushed up in the A direction, the outer peripheral surfaces of the fastening members 56 and 57 are pressed in the B direction, so that the fixing tool 44 is firmly fixed to the deformed muscle 30, and the pushing up member 32 is further raised By doing so, the fixture 44 and deformed muscle 3
A compressive force is applied between the embedded surfaces of 0, that is, the testing machine 31, and the tensile load of the deformed muscle is measured.

【0006】[0006]

【発明が解決しようとする課題】従来の固定具は、上記
のようにして異形筋の引張耐力試験を行った後、試験機
31の押上部材32を下げ、円筒枠体51の上面をハン
マー等で叩いて締結部材56,57から外し、次いでこ
れらの締結部材を異形筋30から取り外していたが、円
筒枠体51が締結部材56,57から容易に外れないと
いう問題があった。
In the conventional fixture, after the tensile strength test of the deformed muscle is performed as described above, the push-up member 32 of the testing machine 31 is lowered, and the upper surface of the cylindrical frame 51 is hammered. To remove them from the fastening members 56 and 57, and then remove these fastening members from the deformed muscle 30, but there is a problem that the cylindrical frame 51 cannot be easily removed from the fastening members 56 and 57.

【0007】固定具44が異形筋30から外せないと、
試験機31も異形筋30から外せないため、円筒枠体5
1の上面を強打するが、それでも外れず、止むを得ず異
形筋30を切断して試験機31を取り外す場合もある。
ちなみに、20〜25tの引張耐力試験を行った場合
に、6tの荷重を掛けなければ異形筋から固定具が外れ
なかった例もある。さらに、円筒枠体51の上面を強打
して固定具44を異形筋30から取り外すため、固定具
を叩き落とした瞬間に試験機31に衝撃を加えて傷めて
しまうといった問題もあった。
If the fixture 44 cannot be removed from the deformed muscle 30,
Since the testing machine 31 cannot be removed from the deformed muscle 30, the cylindrical frame 5
Although the upper surface of 1 is hit hard, it still does not come off, and there is a case where the deformed muscle 30 is unavoidably cut and the testing machine 31 is removed.
By the way, when a tensile strength test of 20 to 25 t was performed, there was an example in which the fixture did not come off from the deformed muscle unless a load of 6 t was applied. Furthermore, since the fixing tool 44 is detached from the deformed muscle 30 by hitting the upper surface of the cylindrical frame 51 with force, there is also a problem that an impact is applied to the test machine 31 at the moment when the fixing tool is knocked down, thereby damaging the tester 31.

【0008】本発明者は、かかる点に鑑み、研究を重ね
た結果、円筒枠体の貫通孔の内周面と、それに摺動する
一対の締結部材の外周面が円錐面であると、部分的な突
出変形が起き易く、貫通孔の内周面と締結部材の外周面
が全面に密着しにくくなることに着目し、貫通孔内周面
と締結部材の外周面が全面にわたって密着して摺動でき
る構成とすることにより上記問題を解決できることを見
い出した。従って、本発明の課題は、従来の固定具と同
等の固定機能を有し、試験後に取り外しが容易な異形筋
引張試験用固定具を提供することにある。
In view of such a point, the present inventor has conducted various studies and found that the inner peripheral surface of the through hole of the cylindrical frame and the outer peripheral surface of the pair of fastening members sliding on it are conical surfaces. Focusing on that the inner peripheral surface of the through-hole and the outer peripheral surface of the fastening member are unlikely to be in close contact with the entire surface, the inner peripheral surface of the through-hole and the outer peripheral surface of the fastening member are in close contact with the entire surface. It has been found that the above problem can be solved by adopting a structure which can operate. Accordingly, an object of the present invention is to provide a deformed muscle tension test fixture which has a fixing function equivalent to that of a conventional fixture and is easily removed after the test.

【0009】[0009]

【課題を解決するための手段】本発明の異形筋引張試験
機用固定具(以下、固定具という。)は、中央部に一方
の対向面が下方中心に向けて傾斜している貫通孔を有す
る升形の枠体と、異形筋を左右両側から挟持して上記貫
通孔に挿入される一対の楔形の締結部材から構成されて
いる。上記升形の枠体は、その貫通孔の一方の対向面が
下方中心に向けて傾斜している。この傾斜角度は、通
常、5〜30度、好ましくは8〜12度であり、一対の
締結部材の外側テーパー面の傾斜角度とほぼ同じに形成
させる。また、上記貫通孔の一方の対向面は、平面でも
曲面でも良い。なお、升形の枠体の外形は、通常、直方
体に形成されるが、これに限定されるものではなく、中
央に四角形の貫通孔を有すれば、円形、楕円形等の各種
の形状であっても良い。
According to the present invention, a fixture for a deformed muscle tensile tester (hereinafter, referred to as a fixture) of the present invention is provided with a through hole in which one opposing surface is inclined toward the lower center at the center. It has a square frame and a pair of wedge-shaped fastening members that are inserted into the through holes while holding the deformed muscle from both left and right sides. In the square frame, one of the opposed surfaces of the through hole is inclined toward the lower center. This inclination angle is usually 5 to 30 degrees, preferably 8 to 12 degrees, and is formed to be substantially the same as the inclination angle of the outer tapered surfaces of the pair of fastening members. Further, one facing surface of the through hole may be a flat surface or a curved surface. The external shape of the square frame is usually formed in a rectangular parallelepiped, but is not limited to this, and may have various shapes such as a circle and an ellipse if it has a rectangular through hole in the center. May be.

【0010】一対の締結部材は、その外側テーパー面が
貫通孔の上記傾斜面を全面にわたって摺動し得るよう
に、上記貫通孔の一対の対向面と同じ、平面もしくは曲
面に形成され、締結部材の外側テーパー面は上記貫通孔
の対向面の傾斜面とほぼ同じ角度を有している。この一
対の締結部材には、異形筋の挟持面にそれぞれ、溝又は
滑り止めを形成して異形筋への挟持性を高めると良い。
上記溝としては、半円筒状の凹溝や、断面V字状の凹溝
に形成するのが好ましく、また異形筋の平板状の挟持面
に滑り止め用の突起を設けても良い。
The pair of fastening members are formed in the same plane or curved surface as the pair of opposed surfaces of the through hole so that the outer tapered surface can slide on the entire inclined surface of the through hole. Has an angle substantially equal to the inclined surface of the facing surface of the through hole. A groove or a non-slip may be formed on each of the holding surfaces of the deformed muscles in the pair of fastening members, so that the gripping property to the deformed muscles may be improved.
The groove is preferably formed as a semi-cylindrical concave groove or a concave groove having a V-shaped cross section, and a non-slip projection may be provided on a flat holding surface of deformed streaks.

【0011】上記締結部材には、その上部周側面に枠体
の上面に接するフランジを一体状に設けると良い。フラ
ンジを設けることにより、枠体を締結部材より簡単に取
り外すことができる。すなわち、フランジと枠体の上面
間にドライバー状の差込部材をこじ入れることにより、
枠体は締結部材から容易に取り外せる。そのため、フラ
ンジには、枠体の上面との間に上記差込部材用の差込口
を形成すると良い。
It is preferable that the fastening member is integrally provided with a flange on the upper peripheral side surface, the flange being in contact with the upper surface of the frame. By providing the flange, the frame can be easily removed from the fastening member. That is, by inserting a driver-like insertion member between the flange and the upper surface of the frame,
The frame can be easily removed from the fastening member. For this reason, it is preferable to form an insertion port for the insertion member between the flange and the upper surface of the frame.

【0012】また、このフランジには、貫通するネジ孔
を形成すると良い。このような構成とすることにより、
異形筋からの取り外しに際し、上記ネジ孔にボルトを螺
合させて締結すると、ボルトの先端が枠体の上面に当た
って、締結部材が枠体から離れるため、容易に枠体を外
すことができる。
It is preferable to form a threaded hole in this flange. With such a configuration,
When the bolt is screwed into the screw hole and fastened when removing from the deformed muscle, the tip of the bolt hits the upper surface of the frame and the fastening member is separated from the frame, so that the frame can be easily removed.

【0013】異形筋の挟持面に凹溝を形成した場合に
は、凹溝の内面に、横方向に間隔をあけて複数の突条の
フシを形成すると良い。このフシは、異形筋への締め付
けを効果的にするものであり、通常、高さが0.5〜3
mmの突条で、0.5〜6mmの等間隔に形成するのが
好ましい。
When a concave groove is formed on the holding surface of the deformed muscle, it is preferable to form a plurality of ridges on the inner surface of the concave groove at a lateral interval. The flies are effective for tightening to deformed muscles and usually have a height of 0.5 to 3 mm.
It is preferable that the protrusions are formed at regular intervals of 0.5 to 6 mm with ridges of mm.

【0014】[0014]

【発明の実施の形態】次に、添付図面により、本発明の
固定具の実施の形態について説明する。図1は、本発明
の固定具の一例を示すもので、(a)は一対の締結部材
の斜視図、(b)は枠体の斜視図であり、図2は、本発
明の固定具の他の例を示す斜視図である。また、図3
は、本発明の固定具の別の例を示すもので、(a)は締
結部材の斜視図、(b)はこの締結部材の使用状態を示
す模式的断面図、(c)は更に別の例の締結部材を用い
た本発明の固定具の模式的断面図である。また、図4
は、図1の固定具の使用状態を示す模式図である。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a fixing device according to an embodiment of the present invention. FIGS. 1A and 1B show an example of the fixing device of the present invention. FIG. 1A is a perspective view of a pair of fastening members, FIG. 1B is a perspective view of a frame, and FIG. It is a perspective view showing other examples. FIG.
FIGS. 4A and 4B show another example of the fixing device of the present invention, in which FIG. 4A is a perspective view of a fastening member, FIG. 4B is a schematic cross-sectional view showing a use state of the fastening member, and FIG. It is a typical sectional view of the fixture of the present invention using the example fastening member. FIG.
FIG. 2 is a schematic diagram showing a use state of the fixture of FIG. 1.

【0015】図1に示すように、本発明の固定具は、升
形の枠体1と一対の楔形の締結部材2,2’から構成さ
れている。枠体1には、四角形の貫通孔3が開けられ、
この貫通孔3の一方の対向面4、5は下方中心に向けて
傾斜した平面状に形成されている。一対の締結部材2,
2’は、その外側面6,7が平面状でテーパーになった
楔形で、その内側面には、異形筋を左右両側から挟持し
得る半円筒状の凹溝8,9が形成され、それらの凹溝に
は、内周面に沿って突条のフシ10が等間隔に形成され
ている。
As shown in FIG. 1, the fixing device of the present invention comprises a square frame 1 and a pair of wedge-shaped fastening members 2 and 2 '. A rectangular through-hole 3 is opened in the frame 1,
One of the opposing surfaces 4 and 5 of the through hole 3 is formed in a planar shape inclined toward the lower center. A pair of fastening members 2,
2 'is a wedge-shaped outer surface 6, 7 of which is flat and tapered, and a semi-cylindrical concave groove 8, 9 capable of holding deformed muscles from both left and right sides is formed on the inner surface thereof. In the concave groove, protruding ribs 10 are formed at equal intervals along the inner peripheral surface.

【0016】また、図2に示す本発明の固定具では、枠
体11の貫通孔13の一方の対向面14,15が下方中
心に向けて傾斜した曲面状に形成され、この貫通孔13
に挿入される一対の楔形の締結部材12,12’の外側
テーパー面16,17がほぼ同じ曲面に形成されてい
る。
In the fixture of the present invention shown in FIG. 2, one of the opposing surfaces 14, 15 of the through hole 13 of the frame 11 is formed into a curved surface inclined toward the lower center.
The outer tapered surfaces 16 and 17 of a pair of wedge-shaped fastening members 12 and 12 'inserted into the pair are formed to have substantially the same curved surfaces.

【0017】図3(a)で示す別の例の締結部材では、
その上部周側面に枠体1の上面Cに接するフランジ1
8,18’が一体に形成され、このフランジには、貫通
するネジ孔19,19’がそれぞれ形成され、これらの
ネジ孔には、図3(b)で示すように、ボルト20,2
0’が装着されている。さらに、図3(c)で示す締結
部材のフランジ28,28’の下面には、差込口29が
設けられている。
In another example of the fastening member shown in FIG.
Flange 1 that contacts upper surface C of frame 1 on its upper peripheral side surface
8 and 18 'are formed integrally, and threaded holes 19 and 19' are respectively formed in the flanges. Bolts 20 and 2 are formed in these screw holes as shown in FIG.
0 'is attached. Further, an insertion port 29 is provided on the lower surface of the flange 28, 28 'of the fastening member shown in FIG.

【0018】図1に示す本発明の固定具を、異形筋に取
り付けるには、図4に示すように枠体1を異形筋30に
挿通させて、すでに異形筋30に取り付けた試験機31
の上面に載せる。次に、枠体1の上部の異形筋30の所
望箇所に、締結部材2,2’の半円筒状の凹溝8,9を
テーパー先端部を下方に向けて左右両側から挟持させた
後、枠体1を締結部材2,2’のテーパー先端部から挿
通させることにより、固定具は、異形筋30に取り付け
られる。
To attach the fixture of the present invention shown in FIG. 1 to the deformed muscle, the frame 1 is inserted through the deformed muscle 30 as shown in FIG.
Place on top of Next, semi-cylindrical concave grooves 8 and 9 of the fastening members 2 and 2 ′ are clamped from both left and right sides of the fastening members 2 and 2 ′ at desired positions of the deformed streaks 30 on the upper portion of the frame body 1 with the tapered tips directed downward. The fixture is attached to the deformed muscle 30 by inserting the frame body 1 from the tapered distal ends of the fastening members 2 and 2 ′.

【0019】試験機による、異形筋の引張耐力の測定は
[0005]で詳述したように、試験機31の押上部材
32を油圧等で上げ、固定具の枠体1の下面を押圧する
ことにより固定具は異形筋30に強固に固定され、固定
具と異形筋の埋設面との間に圧縮力をかけることにより
異形筋の引張耐力が測定される。
As described in detail in [0005], the tensile strength of the deformed muscle is measured by the tester by raising the push-up member 32 of the tester 31 with hydraulic pressure and pressing the lower surface of the frame 1 of the fixture. As a result, the fixture is firmly fixed to the deformed muscle 30, and the tensile strength of the deformed muscle is measured by applying a compressive force between the fixture and the embedded surface of the deformed muscle.

【0020】測定後の固定具の取り外しは、試験機31
の押上部材32を下げ、枠体の側面33,33’を軽く
ハンマー等で叩くことにより、枠体1は締結部材2,
2’から簡単に外れ、従来の固定具のように枠体1の上
面をハンマー等によって強打する必要がない。
After the measurement, the fixture is removed by using a tester 31.
Of the frame body 1 is lightly hit with a hammer or the like so that the frame body 1
2 ', the upper surface of the frame 1 does not need to be hammered with a hammer or the like, unlike a conventional fixing device.

【0021】さらに、図3(a)、(b)に示したフラ
ンジ18,18’を形成させた締結部材を使用すれば、
ネジ孔19,19’に装着させたボルト20,20’を
締結することにより、ボルトの先端が枠体1の上面Cを
押すので枠体1を簡単に取り外すことができる。また、
図3(c)に示したフランジ28,28’を形成させた
締結部材では、フランジの下面に設けた差込口29に差
込部材をこじ入れることにより、枠体を締結部材から容
易に取り外すことができる。
Furthermore, if the fastening member having the flanges 18 and 18 'shown in FIGS. 3A and 3B is used,
By fastening the bolts 20 and 20 ′ attached to the screw holes 19 and 19 ′, the tip of the bolt pushes the upper surface C of the frame 1, so that the frame 1 can be easily removed. Also,
In the fastening member having the flanges 28 and 28 'shown in FIG. 3C, the frame is easily removed from the fastening member by prying the insertion member into the insertion port 29 provided on the lower surface of the flange. be able to.

【0022】[0022]

【発明の効果】本発明の固定具によれば、異形筋引張試
験機による異形筋の引張耐力の測定後に、枠体を締結部
材から容易に取り外すことができるので、作業効率が高
まる。また、従前の固定具のように、枠体を強打して変
形させることもないので固定具の寿命を大幅に延ばすこ
とができる。さらに、固定具を異形筋から取り外す際
に、枠体が落下して試験機に衝撃を加えて傷めることも
ない。
According to the fixture of the present invention, the frame can be easily removed from the fastening member after the tensile strength of the deformed muscle is measured by the deformed muscle tensile tester, so that the working efficiency is increased. Further, unlike the conventional fixing device, the frame is not strongly hit and deformed, so that the life of the fixing device can be greatly extended. Further, when the fixture is removed from the deformed muscle, the frame does not drop and does not damage the tester by impact.

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

【図1】本発明の固定具の一例を示すもので、(a)は
締結部材の斜視図、(b)は枠体の斜視図である。
FIG. 1 shows an example of a fixing device of the present invention, wherein (a) is a perspective view of a fastening member, and (b) is a perspective view of a frame.

【図2】本発明の固定具の他の例を示す斜視図である。FIG. 2 is a perspective view showing another example of the fixing device of the present invention.

【図3】本発明の固定具の別の例を示すもので、(a)
は締結部材の斜視図、(b)はこの固定具の使用状態を
示す模式的断面図であり、(c)は別の例の締結部材を
用いた本発明の固定具の模式的断面図である。
FIG. 3 shows another example of the fixing device of the present invention, in which (a)
Is a perspective view of a fastening member, (b) is a schematic cross-sectional view showing a use state of the fixing tool, and (c) is a schematic cross-sectional view of a fixing tool of the present invention using another example of a fastening member. is there.

【図4】図1の固定具の使用状態を示す模式的側面図で
ある。
FIG. 4 is a schematic side view showing a use state of the fixing device of FIG. 1;

【図5】従来の固定具の使用状態を示すもので、(a)
は異形筋に取付けた状態の模式的断面図、(b)は異形
筋に取付けた試験機の斜視図である。
FIG. 5 shows a state of use of a conventional fixing device, and (a)
FIG. 3 is a schematic cross-sectional view of a state where the test piece is attached to the deformed muscle, and FIG.

【図6】従来の固定具を示すもので、(a)は締結部材
の斜視図、(b)は枠体の斜視図である。
6A and 6B show a conventional fixing device, in which FIG. 6A is a perspective view of a fastening member, and FIG. 6B is a perspective view of a frame.

【符号の説明】[Explanation of symbols]

1,11 枠体 2,2’,12,12’ 締結部材 3,13 枠体の貫通孔 4,5;14,15 貫通孔の一方の対向面 6,7,16,17 締結部材の外側テーパー面 8,9, 締結部材の半円筒状の凹溝 10 フシ 18,18’;28,28’フランジ 19,19’ネジ孔 20,20’ボルト 29 差込口 30 異形筋 31 試験機 32 押上部材 33,33’枠体の側面 43 試験機の中心貫通孔 44 固定具 51 円筒枠体 56,57 締結部材 58,59 半円筒状の凹溝 1,11 Frame 2,2 ', 12,12' Fastening member 3,13 Through hole of frame 4,5; 14,15 One facing surface of through hole 6,7,16,17 Outer taper of fastening member Surfaces 8, 9, semi-cylindrical concave groove of fastening member 10 fusible 18, 18 '; 28, 28' flange 19, 19 'screw hole 20, 20' bolt 29 insertion port 30 deformed streaks 31 testing machine 32 push-up member 33, 33 'Side surface of frame 43 Central through hole of testing machine 44 Fixture 51 Cylindrical frame 56, 57 Fastening member 58, 59 Semi-cylindrical concave groove

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 異形鉄筋とその埋設面間に圧力をかけ
て、引張耐力を測定する異形鉄筋引張試験機に使用され
る固定具であって、中央部に一方の対向面が下方中心に
向けて傾斜している貫通孔を有する升形の枠体と、異形
鉄筋を左右両側から挟持して上記貫通孔に挿入される一
対の楔形の締結部材からなり、この締結部材は、その外
側テーパー面が上記貫通孔の対向面に接して摺動するよ
うに形成されてなることを特徴とする異形鉄筋引張試験
機用固定具。
1. A fixture used in a deformed reinforcing bar tensile tester for measuring tensile strength by applying a pressure between a deformed reinforcing bar and a buried surface thereof, wherein one facing surface is directed downward toward the center at the center. A square frame having a through hole that is inclined, and a pair of wedge-shaped fastening members inserted into the through hole while sandwiching the deformed reinforcing bar from both the left and right sides, the fastening member has an outer tapered surface. A fixture for a deformed reinforcing bar tensile tester, wherein the fixture is formed so as to slide in contact with an opposing surface of the through hole.
【請求項2】 一対の楔形の締結部材は、異形鉄筋の挟
持面に、溝又は滑り止めを有する請求項1記載の異形鉄
筋引張試験機用固定具。
2. The fixture for a tensile tester of a deformed reinforcing bar according to claim 1, wherein the pair of wedge-shaped fastening members has a groove or a non-slip on a holding surface of the deformed reinforcing bar.
【請求項3】 一対の楔形の締結部材は、その上部に枠
体の上面に接するフランジを形成してなる請求項1記載
の異形鉄筋引張試験機用固定具。
3. The fixture according to claim 1, wherein the pair of wedge-shaped fastening members has a flange formed on an upper portion thereof, the flange being in contact with an upper surface of the frame.
JP04957998A 1998-03-02 1998-03-02 Fixture for deformed bar tensile testing machine Expired - Fee Related JP3913886B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04957998A JP3913886B2 (en) 1998-03-02 1998-03-02 Fixture for deformed bar tensile testing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04957998A JP3913886B2 (en) 1998-03-02 1998-03-02 Fixture for deformed bar tensile testing machine

Publications (2)

Publication Number Publication Date
JPH11248611A true JPH11248611A (en) 1999-09-17
JP3913886B2 JP3913886B2 (en) 2007-05-09

Family

ID=12835140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04957998A Expired - Fee Related JP3913886B2 (en) 1998-03-02 1998-03-02 Fixture for deformed bar tensile testing machine

Country Status (1)

Country Link
JP (1) JP3913886B2 (en)

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CN103760015A (en) * 2014-01-21 2014-04-30 河海大学 Automatic positioner for compressive fatigue test
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CN109520845A (en) * 2018-10-23 2019-03-26 上海同济检测技术有限公司 Assembled architecture sleeve connection node pulling check-up device
JP2019191022A (en) * 2018-04-26 2019-10-31 国立研究開発法人建築研究所 Tensile tester for anchor and method of the same
CN114088514A (en) * 2021-11-22 2022-02-25 中铁十七局集团第一工程有限公司 Clamp for concrete axial tensile test
CN116625814A (en) * 2023-04-11 2023-08-22 凌云建设集团有限公司 Road reinforcing bar construction deviation detection device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100403789B1 (en) * 2001-12-14 2003-11-05 최승열 Cable Tension Measurement Device
JP2015511709A (en) * 2012-03-31 2015-04-20 中国▲鉱▼▲業▼大学(北京) Dynamic performance test system
US9588029B2 (en) 2012-03-31 2017-03-07 China University Of Mining & Technology (Beijing) Dynamics performance testing system
CN103760015A (en) * 2014-01-21 2014-04-30 河海大学 Automatic positioner for compressive fatigue test
JP2019191022A (en) * 2018-04-26 2019-10-31 国立研究開発法人建築研究所 Tensile tester for anchor and method of the same
CN109520845A (en) * 2018-10-23 2019-03-26 上海同济检测技术有限公司 Assembled architecture sleeve connection node pulling check-up device
CN114088514A (en) * 2021-11-22 2022-02-25 中铁十七局集团第一工程有限公司 Clamp for concrete axial tensile test
CN114088514B (en) * 2021-11-22 2023-12-29 中铁十七局集团第一工程有限公司 Clamp for concrete axial tensile test
CN116625814A (en) * 2023-04-11 2023-08-22 凌云建设集团有限公司 Road reinforcing bar construction deviation detection device
CN116625814B (en) * 2023-04-11 2023-12-05 凌云建设集团有限公司 Road reinforcing bar construction deviation detection device

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