JPH07139094A - Anchor device for prestressed hollow pc steel rod - Google Patents
Anchor device for prestressed hollow pc steel rodInfo
- Publication number
- JPH07139094A JPH07139094A JP30853993A JP30853993A JPH07139094A JP H07139094 A JPH07139094 A JP H07139094A JP 30853993 A JP30853993 A JP 30853993A JP 30853993 A JP30853993 A JP 30853993A JP H07139094 A JPH07139094 A JP H07139094A
- Authority
- JP
- Japan
- Prior art keywords
- steel rod
- hollow
- rod
- locking piece
- steel
- 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
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、コンクリート部材にプ
レテンション方式によりプレストレスを与える場合に使
用するプレストレスを導入された中空PC鋼棒の定着装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a hollow PC steel rod into which a prestress is introduced, which is used when prestressing a concrete member by a pretensioning method.
【0002】[0002]
【従来の技術】強固なアバットを使用することなく、プ
レテンション方式によりコンクリート部材にプレストレ
スを導入する方式の一つとして、コンクリート打設現場
において、特願平4−152988号に示されているよ
うに、中空PC鋼棒の中に従来のPC鋼棒(充実PC鋼
棒)を挿通し、このPC鋼棒を反力支承部材として利用
して、ジャッキにより前記中空PC鋼棒に引張力を与
え、その引張力を与えた中空PC鋼棒を、コンクリート
部材の所定の位置に配置した後、コンクリートを打設
し、そのコンクリートが所定の強度に発現した後、前記
中空PC鋼棒を開放してコンクリートにプレストレスを
導入する方式が知られている。2. Description of the Related Art As one of the methods of introducing prestress to a concrete member by a pretensioning method without using a strong abutment, it is disclosed in Japanese Patent Application No. 4-152988 at a concrete pouring site. As described above, a conventional PC steel rod (solid PC steel rod) is inserted into the hollow PC steel rod, and this PC steel rod is used as a reaction force bearing member, and a tensile force is applied to the hollow PC steel rod by a jack. The hollow PC steel rod to which the tensile force is applied is placed at a predetermined position of the concrete member, concrete is poured, and the concrete develops to a predetermined strength, and then the hollow PC steel rod is opened. A method of introducing prestress into concrete is known.
【0003】[0003]
【発明が解決しようとする課題】前記従来のプレストレ
ス導入方式の場合は、コンクリート打設現場において、
中空PC鋼棒内に挿入されたPC鋼棒を反力支承部材と
して利用して、中空PC鋼棒に引張力を与えてプレスト
レスを導入する必要があるので、コンクリート打設現場
における施工能率が上がらず、かつ配等の作業も行なえ
ないので、構築施工能率がさらに低下するという欠点が
ある。したがって、中空PC鋼棒に対し専用の場所でプ
レストレスを導入したのち、そのプレストレスを導入し
た中空PC鋼棒をコンクリート打設現場まで運搬する必
要がある。In the case of the above-mentioned conventional prestress introduction method, at the concrete pouring site,
The PC steel rod inserted in the hollow PC steel rod is used as a reaction force bearing member to apply a tensile force to the hollow PC steel rod to introduce prestress, so that the construction efficiency at the concrete pouring site is improved. There is a drawback in that the construction work efficiency is further reduced because the work cannot be done and the work such as distribution cannot be performed. Therefore, it is necessary to introduce prestress to the hollow PC steel rod at a dedicated place and then transport the prestressed hollow PC steel rod to the concrete pouring site.
【0004】[0004]
【課題を解決するための手段】前述の問題を有利に解決
するために、本発明のプレストレスを導入された中空P
C鋼棒の定着装置においては、中空PC鋼棒1の一端部
に、その中空PC鋼棒1内に挿入されたPC鋼棒2の一
端部を係合するストッパ3を着脱自在に固定し、前記中
空PC鋼棒1の他端部の外周に設けた雄ねじ4に、支承
筒5の一端部に設けた雌ねじ6を螺合し、前記支承筒5
の他端部に設けた雌ねじ7に、環状係止片8の外周に設
けた雄ねじ9を螺合し、前記支承筒5内の中間部に配置
された押圧係止片10を、前記環状係止片8に係合さ
せ、前記PC鋼棒2に圧縮力が与えられると共に、前記
中空PC鋼棒1に引張プレストレスが導入されている。In order to advantageously solve the aforementioned problems, the prestressed hollow P of the present invention is used.
In the C steel rod fixing device, a stopper 3 for engaging one end of a PC steel rod 2 inserted in the hollow PC steel rod 1 is detachably fixed to one end of the hollow PC steel rod 1. A male screw 4 provided on the outer circumference of the other end of the hollow PC steel rod 1 is screwed into a female screw 6 provided on one end of the support cylinder 5, to form the support cylinder 5
A male screw 9 provided on the outer periphery of the annular locking piece 8 is screwed into a female screw 7 provided on the other end of the ring, and a pressing engaging piece 10 arranged at an intermediate portion in the support cylinder 5 is attached to the annular engaging piece. The PC steel rod 2 is engaged with the stopper 8 to apply a compressive force, and the hollow PC steel rod 1 is subjected to tensile prestress.
【0005】[0005]
【実施例】次に本発明を図示の例によって詳細に説明す
る。図1ないし図4は本発明の実施例に係るプレストレ
スを導入された中空PC鋼棒の定着装置を示し、図5は
中空PC鋼棒1を示し、図6はPC鋼棒2を示してい
る。また図7および図8は支承筒5を示し、図9および
図10は押圧係止片10を示し、かつ図11および図1
2は環状係止片8を示している。The present invention will now be described in detail with reference to the examples shown in the drawings. 1 to 4 show a fixing device for a prestressed hollow PC steel rod according to an embodiment of the present invention, FIG. 5 shows a hollow PC steel rod 1 and FIG. 6 shows a PC steel rod 2. There is. 7 and 8 show the support cylinder 5, FIGS. 9 and 10 show the pressure locking piece 10, and FIGS.
Reference numeral 2 denotes an annular locking piece 8.
【0006】図5は本発明の実施例において用いられる
中空PC鋼棒1を示すものであって、断面円形の鋼管か
らなる中空PC鋼棒1の一端部の外周に雄ねじ11が設
けられ、かつ前記中空PC鋼棒1の他端部の外周に雄ね
じ4が設けられている。FIG. 5 shows a hollow PC steel rod 1 used in the embodiment of the present invention. A male screw 11 is provided on the outer periphery of one end of the hollow PC steel rod 1 made of a steel pipe having a circular cross section, and A male screw 4 is provided on the outer periphery of the other end of the hollow PC steel rod 1.
【0007】図6は本発明の実施例において用いられる
PC鋼棒2を示すものであって、丸鋼棒からなるPC鋼
棒2の一端部の中心に雌ねじ孔12が設けられている。FIG. 6 shows a PC steel rod 2 used in an embodiment of the present invention. A female screw hole 12 is provided at the center of one end of the PC steel rod 2 made of a round steel rod.
【0008】図7および図8は支承筒5を示すものであ
って、6角形の外面13と円形の中心孔14とを備えて
いる鋼製筒体の一端部に、小径の雌ねじ6が設けられ、
かつ前記他端部に大径の雌ねじ7が設けられている。FIGS. 7 and 8 show the support cylinder 5, in which a small diameter female screw 6 is provided at one end of a steel cylinder having a hexagonal outer surface 13 and a circular center hole 14. The
Moreover, a large-diameter female screw 7 is provided at the other end.
【0009】図9および図10は押圧係止片10を示す
ものであって、円筒状の外面を有する鋼材の前部に、P
C鋼棒挿込孔15が設けられ、かつ前記鋼材の後部に凹
部16が設けられている。図11および図12は環状係
止片8を示すものであって、円形の挿通孔17を有する
環状係止片8の外周に雄ねじ9が設けられている。FIG. 9 and FIG. 10 show a pressing locking piece 10, in which P is provided on the front part of a steel material having a cylindrical outer surface.
A C steel rod insertion hole 15 is provided, and a recess 16 is provided at the rear portion of the steel material. 11 and 12 show the annular locking piece 8, in which a male screw 9 is provided on the outer circumference of the annular locking piece 8 having a circular insertion hole 17.
【0010】図1ないし図4は、本発明を実施して、P
C鋼棒2を反力支承部材として利用して、中空PC鋼棒
1に引張りプレストレスを与えた状態を示すものであっ
て、中空PC鋼棒1の一端部の雄ねじ11に、ナット1
8が螺合され、前記中空PC鋼棒1の一端部から突出し
ているナット18内に、外周面に雄ねじを有するストッ
パ3が螺合され、かつそのストッパ3に挿通された固定
用ボルト19は、PC鋼棒2の雌ねじ孔12に螺合さ
れ、さらに中空PC鋼棒1の一端部のナット18の前方
(中空PC鋼棒1の中間側)において、支圧板20が嵌
設され、その支圧板20はナット18により支承され
る。1 through 4 show the implementation of the present invention, P
1 shows a state in which a C steel rod 2 is used as a reaction force bearing member to apply tensile prestress to the hollow PC steel rod 1, in which the male screw 11 at one end of the hollow PC steel rod 1 is attached to the nut 1
8 is screwed into a nut 18 projecting from one end of the hollow PC steel rod 1, a stopper 3 having a male screw on the outer peripheral surface is screwed, and the fixing bolt 19 inserted into the stopper 3 is , The internal threaded hole 12 of the PC steel rod 2 is screwed, and further, in front of the nut 18 at one end of the hollow PC steel rod 1 (the intermediate side of the hollow PC steel rod 1), the pressure support plate 20 is fitted and supported. The pressure plate 20 is supported by the nut 18.
【0011】前記中空PC鋼棒1の他端部に設けられた
雄ねじ4に、ナット21が螺合され、前記中空PC鋼棒
1に、ナット21の前方(中空PC鋼棒1の中間側)に
おいて、支圧板22が嵌設され、その支圧板22はナッ
ト21により支承される。A nut 21 is screwed into a male screw 4 provided at the other end of the hollow PC steel rod 1, and the hollow PC steel rod 1 is provided in front of the nut 21 (the intermediate side of the hollow PC steel rod 1). At, the pressure bearing plate 22 is fitted and the pressure bearing plate 22 is supported by the nut 21.
【0012】中空PC鋼棒1の他端部に、支承筒5の一
端部の雌ねじ6が螺合され、かつ前記支承筒5の他端部
の雌ねじ7に環状係止片8の雄ねじ9が螺合され、さら
にPC鋼棒2の他端部に嵌合された押圧係止片10は、
前記環状係止片8に係合されている。この状態では、P
C鋼棒2に圧縮力が与えられると共に、中空PC鋼棒1
に引張力によるプレストレスが導入されている。A female screw 6 at one end of the support cylinder 5 is screwed into the other end of the hollow PC steel rod 1, and a male screw 9 of an annular locking piece 8 is attached to the female screw 7 at the other end of the support cylinder 5. The pressure locking piece 10 screwed and further fitted to the other end of the PC steel rod 2 is
It is engaged with the annular locking piece 8. In this state, P
A compressive force is applied to the C steel rod 2 and the hollow PC steel rod 1
Pre-stress due to tensile force has been introduced into.
【0013】次に中空PC鋼棒1およびPC鋼棒2とこ
れらに付属する部材を、コンクリート打設現場に運搬し
て、中空PC鋼棒1の端部を除く部分をコンクリート中
に埋め込む。Next, the hollow PC steel rod 1 and the PC steel rod 2 and the members attached thereto are transported to a concrete pouring site, and the portion of the hollow PC steel rod 1 excluding the end portion is embedded in concrete.
【0014】前述のようにして、中空PC鋼棒1に引張
力を与えると共に、PC鋼棒2に圧縮力を与えたのち、
PC鋼棒セットを1単位とし、コンクリート部材の所定
の位置に、所定数のPC鋼棒セットを配置し、そのPC
鋼棒セットを埋め込むようにコンクリートを打設する。
そのコンクリートが所定の強度に達した後、支承筒5を
レンチにより回動して中空PC鋼棒1から外し、かつ中
空PC鋼棒1の表面とコンクリートとの付着を介して、
コンクリート部材に圧縮力を与える。As described above, after the tensile force is applied to the hollow PC steel rod 1 and the compressive force is applied to the PC steel rod 2,
PC steel rod set as one unit, a predetermined number of PC steel rod set is arranged at a predetermined position of the concrete member, and the PC
Pour concrete to embed the steel rod set.
After the concrete reaches a predetermined strength, the supporting cylinder 5 is rotated by a wrench to remove it from the hollow PC steel rod 1, and the surface of the hollow PC steel rod 1 is adhered to the concrete.
Apply compressive force to concrete members.
【0015】次に本発明を実施する場合に使用する中空
PC鋼棒の緊張装置について説明する。水平な支持台2
3の一端部の上面に、上向きに開口する中空PC鋼棒嵌
入溝41を有する支承台42が固定され、前記支持台2
3の他端部の上面に液圧式押込用ジャッキ26のシリン
ダ27を支持しているジャッキ受台28が固定され、前
記支持台23の中間部の上面に、上向きに開口する中空
PC鋼棒嵌入溝29を有する支承台25が固定されてい
る。Next, the tensioning device for the hollow PC steel rod used when carrying out the present invention will be described. Horizontal support 2
A support base 42 having a hollow PC steel rod fitting groove 41 opening upward is fixed to the upper surface of one end of the support base 2.
The jack receiving base 28 supporting the cylinder 27 of the hydraulic pushing jack 26 is fixed to the upper surface of the other end of the No. 3, and the hollow PC steel rod fitting upwardly is inserted into the upper surface of the intermediate portion of the supporting base 23. A support 25 having a groove 29 is fixed.
【0016】前記ジャッキ受台28の内面に、環状支持
板30が当接され、かつ前記押込用ジャッキ26におけ
る支承筒5の先端側にピストン杆ガイド部材31が配置
され、前記環状支持板30とピストン杆ガイド部材31
との間に、複数の管体からなるスペーサ32が介在さ
れ、前記スペーサ32と環状支持板30およびピストン
杆ガイド部材31とは溶接により結合されている。An annular support plate 30 is in contact with the inner surface of the jack receiving base 28, and a piston rod guide member 31 is arranged at the tip end side of the support cylinder 5 of the pushing jack 26, and the annular support plate 30 and Piston rod guide member 31
A spacer 32 made up of a plurality of pipes is interposed between and, and the spacer 32, the annular support plate 30, and the piston rod guide member 31 are joined by welding.
【0017】前記支承台25の両側面に、それぞれ上向
きに開口する中空PC鋼棒嵌入溝33を有する一対のボ
ルト保持板34,35が当接され、4本のボルト36
は、ジャッキ受台28およびその両側面に当接されたナ
ット37,環状支持板30と、ピストン杆ガイド部材3
1およびスペーサ32と、支承台25およびその両側面
に当接されたボルト保持板34,35とにわたって挿通
され、各ボルト36の端部にナット37が螺合されてい
る。A pair of bolt holding plates 34, 35 each having a hollow PC steel rod fitting groove 33 opening upward are respectively brought into contact with both side surfaces of the support base 25, and four bolts 36 are provided.
Is a jack pedestal 28, a nut 37 abutting on both side surfaces thereof, an annular support plate 30, and a piston rod guide member 3.
1 and the spacer 32, and the support base 25 and the bolt holding plates 34 and 35 that are in contact with both side surfaces of the support base 25, and the nuts 37 are screwed onto the ends of the bolts 36.
【0018】前記ボルト保持板35の外面に係合する支
圧板22は中空PC鋼棒1に嵌設され、前記支圧板22
を支承するナット21は、中空PC鋼棒1の他端部の雄
ねじ4に螺合されている。また前記押込用ジャッキ26
におけるピストン杆38は、ピストン杆ガイド部材31
に嵌挿されている。A bearing plate 22 that engages with the outer surface of the bolt holding plate 35 is fitted on the hollow PC steel rod 1, and the bearing plate 22 is attached.
The nut 21 for supporting is screwed to the male screw 4 at the other end of the hollow PC steel rod 1. Also, the pushing jack 26
The piston rod 38 in FIG.
Has been inserted into.
【0019】前述のように構成された中空PC鋼棒の緊
張装置を使用して、PC鋼棒2を圧縮すると共に中空P
C鋼棒1に引張力を与える場合は、まず図21に示すよ
うに、押圧部材39における先端押込杆40の先端部
を、環状係止片8内を通って押圧係止片10に係合さ
せ、次いで押込用ジャッキ26を伸長させることによ
り、図22に示すように、押圧係止片10を介してPC
鋼棒2を圧縮し、押圧係止片10を中空PC鋼棒1の他
端部に向かって移動させる。Using the hollow PC steel rod tensioning device constructed as described above, the PC steel rod 2 is compressed and the hollow P steel rod is hollowed.
When a tensile force is applied to the C steel rod 1, first, as shown in FIG. 21, the tip end portion of the tip pushing rod 40 of the pressing member 39 is passed through the annular engaging piece 8 and engaged with the pressing engaging piece 10. Then, by extending the pushing jack 26, as shown in FIG.
The steel rod 2 is compressed, and the pressing locking piece 10 is moved toward the other end of the hollow PC steel rod 1.
【0020】次に図23に示すように、支承筒5を中空
PC鋼棒1の中間側に向かって移動する方向Dに回転し
て、支承筒5の他端部に螺合されている環状係止片8
を、押圧係止片10に係合させる。Next, as shown in FIG. 23, the support cylinder 5 is rotated in the direction D moving toward the intermediate side of the hollow PC steel rod 1, and is annularly screwed to the other end of the support cylinder 5. Locking piece 8
Are engaged with the pressing locking piece 10.
【0021】次に必要に応じ、図21ないし図23に示
す動作を反復して行なわせる。Next, if necessary, the operations shown in FIGS. 21 to 23 are repeated.
【0022】[0022]
【発明の効果】本発明によれば、中空PC鋼棒1の一端
部に、その中空PC鋼棒1内に挿入されたPC鋼棒2の
一端部を係合するストッパ3を着脱自在に固定し、前記
中空PC鋼棒1の他端部の外周に設けた雄ねじ4に、支
承筒5の一端部に設けた雌ねじ6を螺合し、前記支承筒
5の他端部に設けた雌ねじ7に、環状係止片8の外周に
設けた雄ねじ9を螺合し、前記支承筒5内の中間部に配
置された押圧係止片10を、前記環状係止片8に係合さ
せ、前記PC鋼棒2に圧縮力が与えられると共に、前記
中空PC鋼棒1に引張プレストレスが導入されているの
で、構造が簡単で小型の定着装置を使用して、PC鋼棒
2に圧縮力を与えると共に、中空PC鋼棒1に引張り力
によるプレストレスを与えた状態に保持して運搬するこ
とができる。According to the present invention, the stopper 3 for engaging the one end of the PC steel rod 2 inserted into the hollow PC steel rod 1 is detachably fixed to the one end of the hollow PC steel rod 1. Then, a female screw 6 provided at one end of the support cylinder 5 is screwed into a male screw 4 provided at the outer periphery of the other end of the hollow PC steel rod 1, and a female screw 7 provided at the other end of the support cylinder 5. , A male screw 9 provided on the outer periphery of the annular locking piece 8 is screwed into it, and a pressing locking piece 10 arranged in the middle portion of the support cylinder 5 is engaged with the annular locking piece 8, Since a compressive force is applied to the PC steel rod 2 and a tensile prestress is introduced into the hollow PC steel rod 1, a compressing force is applied to the PC steel rod 2 by using a fixing device having a simple structure and small size. In addition to giving, the hollow PC steel rod 1 can be held and transported while being prestressed by the tensile force.
【図1】本発明の実施例に係るプレストレスを導入され
た中空PC鋼棒の定着装置を示す一部切欠平面図であ
る。FIG. 1 is a partially cutaway plan view showing a fixing device for a prestressed hollow PC steel rod according to an embodiment of the present invention.
【図2】本発明の実施例に係るプレストレスを導入され
た中空PC鋼棒の定着装置を示す一部切欠横断平面図で
ある。FIG. 2 is a partially cutaway cross-sectional plan view showing a fixing device for a prestressed hollow PC steel rod according to an embodiment of the present invention.
【図3】図2の左側部分を拡大して示す横断平面図であ
る。FIG. 3 is a cross-sectional plan view showing a left side portion of FIG. 2 in an enlarged manner.
【図4】図2の右側部分を拡大して示す横断平面図であ
る。FIG. 4 is a cross-sectional plan view showing a right side portion of FIG. 2 in an enlarged manner.
【図5】中空PC鋼棒の一部切欠拡大横断平面図であ
る。FIG. 5 is a partially cutaway enlarged cross-sectional plan view of a hollow PC steel rod.
【図6】PC鋼棒の一部切欠横断平面図である。FIG. 6 is a partially cutaway cross-sectional plan view of a PC steel rod.
【図7】支承筒を示す横断平面図である。FIG. 7 is a cross-sectional plan view showing a support cylinder.
【図8】支承筒を示す正面図である。FIG. 8 is a front view showing a support cylinder.
【図9】押圧係止片を示す横断平面図である。FIG. 9 is a cross-sectional plan view showing a pressure locking piece.
【図10】押圧係止片を示す正面図である。FIG. 10 is a front view showing a pressure locking piece.
【図11】環状係止片を示す横断平面図である。FIG. 11 is a cross-sectional plan view showing an annular locking piece.
【図12】環状係止片を示す正面図である。FIG. 12 is a front view showing an annular locking piece.
【図13】中空PC鋼棒の緊張装置における先端押込杆
を押圧係止片に当接した状態を示す横断平面図である。FIG. 13 is a cross-sectional plan view showing a state in which a tip pushing rod of a tensioning device for a hollow PC steel rod is brought into contact with a pressing locking piece.
【図14】図13に示す部分の縦断側面図である。14 is a vertical cross-sectional side view of the portion shown in FIG.
【図15】図13の左上側部分を拡大して示す横断平面
図である。FIG. 15 is a cross-sectional plan view showing an enlarged upper left side portion of FIG.
【図16】図13の左下側部分を拡大して示す横断平面
図である。FIG. 16 is an enlarged cross-sectional plan view showing the lower left portion of FIG.
【図17】図13の右下側部分を拡大して示す横断平面
図である。FIG. 17 is an enlarged cross-sectional plan view showing the lower right portion of FIG.
【図18】図15のA−A線断面図である。18 is a cross-sectional view taken along the line AA of FIG.
【図19】図16のB−B線断面図である。19 is a cross-sectional view taken along the line BB of FIG.
【図20】図17のC−C線断面図である。20 is a sectional view taken along line CC of FIG.
【図21】中空PC鋼棒の緊張装置の押圧部材を押圧係
止片に係合させた状態を示す横断平面図である。FIG. 21 is a cross-sectional plan view showing a state in which the pressing member of the tensioning device for the hollow PC steel rod is engaged with the pressing locking piece.
【図22】中空PC鋼棒の緊張装置によりPC鋼棒を圧
縮した状態を示す横断平面図である。FIG. 22 is a cross-sectional plan view showing a state in which a PC steel rod is compressed by a tensioning device for a hollow PC steel rod.
【図23】中空PC鋼棒の緊張装置における支承筒を回
転して、PC鋼棒を圧縮すると共に中空PC鋼棒にプレ
テンションを与えた状態を示す横断平面図である。FIG. 23 is a cross-sectional plan view showing a state in which the support cylinder of the tensioning device for a hollow PC steel rod is rotated to compress the PC steel rod and pretension the hollow PC steel rod.
【図24】押圧部材を示す平面図である。FIG. 24 is a plan view showing a pressing member.
【図25】押圧部材を示す正面図である。FIG. 25 is a front view showing a pressing member.
1 中空PC鋼棒 2 PC鋼棒 3 ストッパ 4 雄ねじ 5 支承筒 6 雌ねじ 7 雌ねじ 8 環状係止片 9 雄ねじ 10 押圧係止片 11 雄ねじ 12 雌ねじ孔 13 6角形の外面 14 円形の中心孔 15 PC鋼棒挿込孔 16 凹部 17 挿通孔 18 ナット 19 固定用ボルト 20 支圧板 21 ナット 22 支圧板 23 支持台 25 支承台 26 押込用ジャッキ 27 シリンダ 28 ジャッキ受台 29 中空PC鋼棒嵌入溝 30 環状支持板 31 ピストン杆ガイド部材 32 スペーサ 33 中空PC鋼棒嵌入溝 34 ボルト保持板 35 ボルト保持板 36 ボルト 37 ナット 38 ピストン杆 39 押圧部材 40 先端押込杆 41 中空PC鋼棒嵌入溝 42 支承台 1 Hollow PC Steel Rod 2 PC Steel Rod 3 Stopper 4 Male Thread 5 Bearing Tube 6 Female Thread 7 Female Thread 8 Annular Locking Piece 9 Male Thread 10 Pressing Locking Piece 11 Male Thread 12 Female Threaded Hole 13 Hexagonal Outer Surface 14 Circular Center Hole 15 PC Steel Rod insertion hole 16 Recess 17 Insertion hole 18 Nut 19 Fixing bolt 20 Pressure plate 21 Nut 22 Pressure plate 23 Support base 25 Bearing base 26 Pushing jack 27 Cylinder 28 Jack receiving base 29 Hollow PC steel rod fitting groove 30 Annular support plate 31 Piston Rod Guide Member 32 Spacer 33 Hollow PC Steel Rod Fitting Groove 34 Bolt Holding Plate 35 Bolt Holding Plate 36 Bolt 37 Nut 38 Piston Rod 39 Pushing Member 40 Tip Push Rod 41 Hollow PC Steel Rod Fitting Groove 42 Bearing Base
Claims (1)
C鋼棒1内に挿入されたPC鋼棒2の一端部を係合する
ストッパ3を着脱自在に固定し、前記中空PC鋼棒1の
他端部の外周に設けた雄ねじ4に、支承筒5の一端部に
設けた雌ねじ6を螺合し、前記支承筒5の他端部に設け
た雌ねじ7に、環状係止片8の外周に設けた雄ねじ9を
螺合し、前記支承筒5内の中間部に配置された押圧係止
片10を、前記環状係止片8に係合させ、前記PC鋼棒
2に圧縮力が与えられると共に、前記中空PC鋼棒1に
引張プレストレスが導入されているプレストレスを導入
された中空PC鋼棒の定着装置。1. A hollow PC steel rod 1 has a hollow P at one end thereof.
A stopper 3 that engages one end of a PC steel rod 2 inserted in a C steel rod 1 is detachably fixed, and a supporting cylinder is attached to a male screw 4 provided on the outer periphery of the other end of the hollow PC steel rod 1. 5, a female screw 6 provided on one end of the bearing cylinder 5 is screwed, and a female screw 7 provided on the other end of the bearing barrel 5 is screwed with a male screw 9 provided on the outer periphery of the annular locking piece 8 to form the bearing barrel 5 The pressure locking piece 10 arranged in the middle portion of the inside is engaged with the annular locking piece 8 to apply a compressive force to the PC steel rod 2 and to apply a tensile prestress to the hollow PC steel rod 1. Fixing device for hollow PC steel rods with pre-stress introduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5308539A JP2534195B2 (en) | 1993-11-16 | 1993-11-16 | Fixing device for hollow PC steel rod with prestress |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5308539A JP2534195B2 (en) | 1993-11-16 | 1993-11-16 | Fixing device for hollow PC steel rod with prestress |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07139094A true JPH07139094A (en) | 1995-05-30 |
JP2534195B2 JP2534195B2 (en) | 1996-09-11 |
Family
ID=17982250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5308539A Expired - Lifetime JP2534195B2 (en) | 1993-11-16 | 1993-11-16 | Fixing device for hollow PC steel rod with prestress |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2534195B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020133260A (en) * | 2019-02-20 | 2020-08-31 | 鹿島建設株式会社 | Concrete slab joint structure and concrete slab joining method |
CN114753238A (en) * | 2022-05-07 | 2022-07-15 | 中铁十九局集团第六工程有限公司 | Prestressed steel bar device and construction method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006233463A (en) * | 2005-02-23 | 2006-09-07 | Oriental Construction Co Ltd | Breakwater, repairing/reinforcing structure and construction method of breakwater |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS426756Y1 (en) * | 1966-06-10 | 1967-03-30 |
-
1993
- 1993-11-16 JP JP5308539A patent/JP2534195B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS426756Y1 (en) * | 1966-06-10 | 1967-03-30 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020133260A (en) * | 2019-02-20 | 2020-08-31 | 鹿島建設株式会社 | Concrete slab joint structure and concrete slab joining method |
CN114753238A (en) * | 2022-05-07 | 2022-07-15 | 中铁十九局集团第六工程有限公司 | Prestressed steel bar device and construction method thereof |
CN114753238B (en) * | 2022-05-07 | 2024-03-29 | 中铁十九局集团第六工程有限公司 | Prestressed steel bar device and construction method thereof |
Also Published As
Publication number | Publication date |
---|---|
JP2534195B2 (en) | 1996-09-11 |
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