JPH0657864A - Method for joining upper and lower hollow PC members - Google Patents
Method for joining upper and lower hollow PC membersInfo
- Publication number
- JPH0657864A JPH0657864A JP20818092A JP20818092A JPH0657864A JP H0657864 A JPH0657864 A JP H0657864A JP 20818092 A JP20818092 A JP 20818092A JP 20818092 A JP20818092 A JP 20818092A JP H0657864 A JPH0657864 A JP H0657864A
- Authority
- JP
- Japan
- Prior art keywords
- hollow
- sleeve
- floor
- main bar
- concrete
- 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
- Joining Of Building Structures In Genera (AREA)
Abstract
(57)【要約】
【目的】 本来の鉄筋コンクリート柱となる中空ＰＣ部
材の成型をし易くすると共に、柱主筋を容易にかつ確実
に接合することができる上下階中空ＰＣ部材の接合方法
を提供する。
【構成】 下階の中空ＰＣ部材１の主筋２の上端部を所
定長さ突出するとともに、この主筋２の上端部にスリー
ブ３を取り付け、このスリーブ３を直上階の床スラブ７
に、床スラブ７の上面より若干突出した状態に埋設し、
このスリーブ３内にグラウト材を注入し、上階の中空Ｐ
Ｃ部材１の主筋２の下端部を所定長さ突出するととも
に、この主筋２の下端部に調整ナット４を螺合し、この
調整ナット４より下方の主筋２下端部を前記スリーブ３
内に挿入し、かつ、前記上階の中空ＰＣ部材１と前記床
スラブ７との間隙部８にコンクリート５を打設する。
(57) [Abstract] [Purpose] To provide a method for joining hollow PC members on the upper and lower floors, which facilitates the molding of hollow PC members that are to be the original reinforced concrete columns and enables easy and reliable joining of column main bars. . [Structure] The upper end of the main bar 2 of the hollow PC member 1 on the lower floor is projected by a predetermined length, and a sleeve 3 is attached to the upper end of the main bar 2, and the sleeve 3 is attached to the floor slab 7 on the upper floor.
Embedded in a state in which it slightly protrudes from the upper surface of the floor slab 7,
The grout material is injected into the sleeve 3 to form a hollow P on the upper floor.
The lower end of the main bar 2 of the C member 1 is projected by a predetermined length, and an adjusting nut 4 is screwed onto the lower end of the main bar 2, and the lower end of the main bar 2 below the adjusting nut 4 is attached to the sleeve 3
Then, the concrete 5 is poured into the inside and the concrete 5 is poured into the gap portion 8 between the hollow PC member 1 on the upper floor and the floor slab 7.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、上下階中空ＰＣ部材
の接合方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of joining hollow upper and lower PC members.
【０００２】[0002]
【従来の技術】近年、鉄筋コンクリート工事には、現場
施工の省力化、工期の短縮化を図るために、柱や梁等の
構造材として中空ＰＣ部材が広く使用されている。2. Description of the Related Art In recent years, hollow reinforced concrete members have been widely used in reinforced concrete construction as structural materials such as columns and beams in order to save labor in construction and shorten the construction period.
【０００３】ところで、この種の中空ＰＣ部材の主筋の
継ぎ手には、重ね継ぎ手やスリーブ継ぎ手が一般に使用
されている。By the way, a lap joint or a sleeve joint is generally used as a joint of the main bars of this type of hollow PC member.
【０００４】[0004]
【発明が解決使用とする課題】しかし、重ね継ぎ手は、
継手部分のコンクリートの厚みが薄くなり、強度が落ち
るという課題があり、また、鉄筋応力の小さい位置、例
えば柱中間部に設けるのが原則で、鉄筋の継手位置が限
られるという課題もあった。However, the lap joint is
There is a problem that the thickness of the concrete of the joint portion becomes thin and the strength is reduced, and in principle, it is provided at a position where the stress of the reinforcing bar is small, for example, in the middle of the column, and there is a problem that the joint position of the reinforcing bar is limited.
【０００５】一方、スリーブ継ぎ手は、ＰＣ部材にあら
かじめ継ぎ手スリーブやグラウト材注入パイプを埋め込
んでおく必要があるため、ＰＣ部材成型時の型枠の組み
立ておよび工程が煩雑になる等の課題があった。On the other hand, in the sleeve joint, it is necessary to bury the joint sleeve and the grout material injection pipe in the PC member in advance, so that there is a problem that the assembling process and the process of molding the PC member become complicated. .
【０００６】さらに、グラウト材の注入に際し、グラウ
ト材を注入するポンプを必要とし、余計な装備を必要と
するという課題もあった。Further, there is a problem that a pump for injecting the grout material is required for injecting the grout material, and extra equipment is required.
【０００７】この発明は、以上の課題を解決するために
なされたもので、中空ＰＣ部材の成型をし易くすると共
に、柱主筋を容易に、かつ確実に接合することができる
中空ＰＣ部材の接合方法を提供することを目的とする。The present invention has been made in order to solve the above problems, and facilitates molding of a hollow PC member, and at the same time, joins a hollow PC member capable of easily and reliably joining main columnar bars. The purpose is to provide a method.
【０００８】[0008]
【課題を解決するための手段】この発明に係る上下階中
空ＰＣ部材の接合方法は、下階の中空ＰＣ部材の主筋の
上端部を所定長さ突出するとともに、この主筋上端部に
スリーブを取り付け、このスリーブを直上階の床スラブ
に、床スラブより突出した状態に埋設するとともに、こ
のスリーブ内にグラウト材を注入し、前記上階の中空Ｐ
Ｃ部材の主筋の下端部を所定長さ突出し、この主筋下端
部に調整ナットを螺合し、この調整ナットより下方の主
筋下端部を前記スリーブ内に挿入し、かつ、前記上階の
中空ＰＣ部材と前記床スラブとの間隙部に、上階の中空
ＰＣ部材の中空部より連続してコンクリートを打設する
ことにより上下階の中空ＰＣ部材を一体的に接合するも
のである。According to the method for joining hollow PC members of the upper and lower floors according to the present invention, the upper end of the main bar of the hollow PC member of the lower floor is projected by a predetermined length, and a sleeve is attached to the upper end of the main bar. , The sleeve is embedded in the floor slab on the floor immediately above it so as to project from the floor slab, and grout material is injected into the sleeve to form the hollow P on the upper floor.
The lower end of the main bar of the C member is protruded by a predetermined length, an adjusting nut is screwed onto the lower end of the main bar, the lower end of the main bar below the adjusting nut is inserted into the sleeve, and the hollow PC of the upper floor is used. In the gap between the member and the floor slab, concrete is continuously cast from the hollow portion of the hollow PC member on the upper floor to integrally join the hollow PC members on the upper and lower floors.
【０００９】[0009]
【実施例】図１〜図４は、この発明に係る中空ＰＣ部材
の接合方法の一実施例を示し、図１は中空ＰＣ部材の側
面図、図２は図１における柱脚部の一部拡大断面図、図
３は建て付け直後の中空ＰＣ部材の柱脚部の断面図、そ
して、図４は接合後の中空ＰＣ部材の柱脚部の縦断面図
である。1 to 4 show an embodiment of a method for joining hollow PC members according to the present invention. FIG. 1 is a side view of the hollow PC members, and FIG. 2 is a part of a column base in FIG. FIG. 3 is an enlarged cross-sectional view, FIG. 3 is a cross-sectional view of the column base of the hollow PC member immediately after being assembled, and FIG. 4 is a vertical cross-sectional view of the column base of the hollow PC member after joining.
【００１０】図４において、符号１は柱用として成型さ
れた中空ＰＣ部材、２は中空ＰＣ部材１の主筋、３は主
筋２を継ぐスリーブ、４は中空ＰＣ部材１の垂直およひ
レベルの調整をする調整ナット、そして、符号５は中空
ＰＣ部材１の中空部６内に打設されたコンクリートであ
る。In FIG. 4, reference numeral 1 is a hollow PC member molded for a pillar, 2 is a main bar of the hollow PC member 1, 3 is a sleeve for joining the main bar 2, and 4 is a vertical and level of the hollow PC member 1. An adjusting nut for adjustment, and reference numeral 5 is concrete cast in the hollow portion 6 of the hollow PC member 1.
【００１１】中空ＰＣ部材１は矩形または円形の中空断
面形に形成され、かつ、複数本の主筋２とフープ筋（図
省略）とで補強されている。The hollow PC member 1 is formed in a rectangular or circular hollow cross-section and is reinforced by a plurality of main bars 2 and hoop bars (not shown).
【００１２】また、中空ＰＣ部材１の中空部６にコンク
リート５が打設されて本来の鉄筋コンクリート柱が構成
され、さらに、中空部６のコンクリート５中には、必要
により補強鉄筋（省略）が配筋されている。In addition, concrete 5 is cast in the hollow portion 6 of the hollow PC member 1 to form an original reinforced concrete column, and further, in the concrete 5 of the hollow portion 6, reinforcing reinforcing bars (omitted) are arranged if necessary. Have been streaked.
【００１３】主筋２は中空ＰＣ部材１のコーナ部に上下
方向に通して配筋され、その上下両端部は中空ＰＣ部材
１の上下両端部より所定長さ突出され、主筋２の継ぎ手
部を形成している。また、主筋２にはねじ鉄筋が使用さ
れている。The main bars 2 are arranged in the corners of the hollow PC member 1 in the vertical direction, and both upper and lower ends thereof are projected from the upper and lower ends of the hollow PC member 1 by a predetermined length to form joints of the main bars 2. is doing. Further, screw reinforcing bars are used for the main bars 2.
【００１４】スリーブ３は主筋２の上端部に取り付けら
れている。スリーブ３の内径は主筋２の外径より一回り
大きく形成され、かつ、下端部に主筋２の上端部を螺合
するためのねじ孔（図省略）が形成されている。そし
て、スリーブ３はこのねじ孔に主筋２の端部を螺合して
取り付けられ、かつ、直上階の床スラブ７のコンクリー
ト中に埋設されている。なお、この場合、スリーブ３の
上端部は床スラブ７より少し突出されている。The sleeve 3 is attached to the upper end of the main bar 2. The inner diameter of the sleeve 3 is formed to be slightly larger than the outer diameter of the main reinforcement 2, and a screw hole (not shown) for screwing the upper end of the main reinforcement 2 into the lower end is formed. The sleeve 3 is attached by screwing the end portion of the main bar 2 into this screw hole, and is embedded in the concrete of the floor slab 7 on the immediately upper floor. In this case, the upper end of the sleeve 3 is slightly projected from the floor slab 7.
【００１５】また、スリーブ３の中には、主筋２の下端
部をスリーブ３内に一体的に接合するために、モルタル
等のグラウト材（図省略）が充填されている。The sleeve 3 is filled with grout material (not shown) such as mortar in order to integrally join the lower end portion of the main bar 2 into the sleeve 3.
【００１６】調整ナット４は主筋２の下端部に螺合して
取り付けられている。また、この調整ナット４より先
の、主筋２の下端部分がスリーブ３内に挿入され、か
つ、スリーブ３内のグラウト材によりスリ−ブ３を介し
て直下階の主筋２と一体的に接合されている。The adjusting nut 4 is screwed and attached to the lower end of the main bar 2. Further, the lower end portion of the main bar 2 beyond the adjusting nut 4 is inserted into the sleeve 3, and is integrally joined to the main bar 2 on the floor directly below through the sleeve 3 by the grout material in the sleeve 3. ing.
【００１７】調整ナット４には、建て付け直後のＰＣ部
材１の自重をスリーブ３に伝えるために、スリーブ３の
内径より一回り大きい座金4aが取り付けられている。A washer 4a, which is slightly larger than the inner diameter of the sleeve 3, is attached to the adjusting nut 4 in order to transmit the own weight of the PC member 1 immediately after being assembled to the sleeve 3.
【００１８】そして、スリーブ３内のグラウト材が硬化
する前に、調整ナット４を回し、主筋２下端部のスリー
ブ３への挿入深さを適当に変えることにより、ＰＣ部材
１の垂直およびレベルの調整が行われている。Before the grout material in the sleeve 3 is hardened, the adjusting nut 4 is turned to appropriately change the insertion depth of the lower end of the main bar 2 into the sleeve 3 to adjust the vertical and level of the PC member 1. Adjustments are being made.
【００１９】また、中空ＰＣ部材１の柱脚部の床スラブ
７と中空ＰＣ部材１との間の間隙部にも、中空部６とと
もにコンクリート５が充填され、床スラブ７と中空ＰＣ
部材１とが完全に一体化されている。In addition, the space between the floor slab 7 of the column base of the hollow PC member 1 and the hollow PC member 1 is filled with the hollow portion 6 and the concrete 5, so that the floor slab 7 and the hollow PC member 1 are filled.
The member 1 is completely integrated.
【００２０】つづいて、この発明に係る中空ＰＣ部材の
接合方法を中間階の場合を例に順をおって説明する。Next, the method for joining the hollow PC members according to the present invention will be described step by step, taking the case of the intermediate floor as an example.
【００２１】 中空ＰＣ部材１の主筋２の上端部にス
リーブ３を、主筋２の下端部に調整ナット４をそれぞれ
取り付ける（図１参照）。A sleeve 3 is attached to the upper end of the main reinforcement 2 of the hollow PC member 1, and an adjusting nut 4 is attached to the lower end of the main reinforcement 2 (see FIG. 1).
【００２２】 つぎに、既に、床スラブ７のコンクリ
ート中に埋設された直下階の中空ＰＣ部材１のスリーブ
３内にモルタル等のグラウト材を充填する。なお、この
場合、後にこのスリーブ３内に挿入される主筋２の下端
部によってグラウト材が溢れないようにグラウト材量を
適当に加減する。Next, a grout material such as mortar is filled into the sleeve 3 of the hollow PC member 1 on the immediately lower floor which is already buried in the concrete of the floor slab 7. In this case, the amount of grout material is appropriately adjusted so that the grout material does not overflow due to the lower end portion of the main bar 2 inserted into the sleeve 3 later.
【００２３】 つぎに、この中空ＰＣ部材１を床スラ
ブ７の上に建て付け、主筋２の下端部をスリーブ３に挿
入する（図２参照）。Next, the hollow PC member 1 is built on the floor slab 7, and the lower end of the main bar 2 is inserted into the sleeve 3 (see FIG. 2).
【００２４】 つぎに、スリーブ３内のグラウト材が
硬化する前に、調整ナット４を上げ下げして中空ＰＣ部
材１の垂直およびレベルを調整する。この場合の調整は
床スラブ７と中空ＰＣ部材１間の間隙部８が50〜60mmの
範囲で行うようにする。Next, before the grout material in the sleeve 3 hardens, the adjustment nut 4 is raised and lowered to adjust the verticality and level of the hollow PC member 1. In this case, the adjustment is made so that the gap 8 between the floor slab 7 and the hollow PC member 1 is in the range of 50 to 60 mm.
【００２５】 つぎに、中空ＰＣ部材１下端部の周囲
に型枠９を取り付けて柱脚部の間隙８を塞ぐ（図３参
照）。Next, a mold 9 is attached around the lower end of the hollow PC member 1 to close the gap 8 in the column base (see FIG. 3).
【００２６】 つぎに、中空ＰＣ部材１の中空部６お
よび柱脚部の間隙部８にコンクリート５を充填し、充分
に養生する。Next, the hollow portion 6 of the hollow PC member 1 and the gap portion 8 of the column base are filled with concrete 5 and sufficiently cured.
【００２７】そして、コンクリート５が充分な強度を発
現したら型枠９を撤去する。Then, when the concrete 5 exhibits sufficient strength, the form 9 is removed.
【００２８】実施例２．図５は、この発明に係る上下階
中空ＰＣ部材の接合方法の他の実施例を示す、中空ＰＣ
部材柱脚部の縦断面図であり、図において、スリーブ３
は上階の中空ＰＣ部材１の主筋２の下端部に取り付けら
れ、かつ、中空ＰＣ部材１のコンクリート中に埋設され
ている。Example 2. FIG. 5 is a hollow PC showing another embodiment of the method for joining the upper and lower hollow PC members according to the present invention.
It is a longitudinal cross-sectional view of a member column foot portion, in the figure, a sleeve 3
Is attached to the lower end of the main bar 2 of the hollow PC member 1 on the upper floor, and is embedded in the concrete of the hollow PC member 1.
【００２９】調整ナット４は下階の中空ＰＣ部材１の主
筋２の上端部に取り付けられ、主筋２の調整ナット４よ
り先端部分はスリーブ３内に挿入されている。The adjusting nut 4 is attached to the upper end of the main bar 2 of the hollow PC member 1 on the lower floor, and the tip of the adjusting nut 4 of the main bar 2 is inserted into the sleeve 3.
【００３０】また、スリーブ３の中には、調整ナット４
を上げ下げして中空ＰＣ部材１の垂直およびレベル調整
がされた後、上下階中空ＰＣ部材１の主筋2,2 を接合す
るためにグラウト注入孔3aよりグラウト材が充填されて
いる。In the sleeve 3, the adjusting nut 4
After the vertical PC and the level of the hollow PC member 1 are adjusted by raising and lowering, the grout material is filled from the grout injection hole 3a for joining the main bars 2, 2 of the upper and lower hollow PC members 1.
【００３１】また、中空ＰＣ部材１の中空部６および柱
脚部の間隙部８にコンクリート５が充填されている。そ
の他の構成は、実施例１と略同じである。Further, the hollow portion 6 of the hollow PC member 1 and the gap portion 8 of the column base portion are filled with concrete 5. Other configurations are substantially the same as those in the first embodiment.
【００３２】[0032]
【発明の効果】この発明は以上説明したように構成され
ているので、以下に記載するような効果を有する。Since the present invention is constructed as described above, it has the following effects.
【００３３】 中空ＰＣ部材のコンクリート厚が主筋
の位置によって制約されることがないので、中空ＰＣ部
材のコンクリートを厚くして中空ＰＣ部材の断面強度を
高めることができる。Since the concrete thickness of the hollow PC member is not restricted by the position of the main bar, the concrete of the hollow PC member can be thickened to increase the cross-sectional strength of the hollow PC member.
【００３４】 従来の重ね継ぎ手に必要であったシー
スや添え筋が一切不要であり、また、シースにグラウト
材を注入するためのパイプやポンプも不要なので、グラ
ウト材の注入がし易くなる等して現場施工がし易くな
り、また、中空ＰＣ部材成型型枠の単純化、統一化によ
り、中空ＰＣ部材の成型を著しく容易にすることができ
る。Since the sheath and the reinforcing bar which are required for the conventional lap joint are not required at all, and the pipe and the pump for injecting the grout material into the sheath are not required, the grout material can be easily injected. Therefore, the hollow PC member molding form can be remarkably facilitated by simplifying and unifying the hollow PC member molding form.
【００３５】 調整ナットを上げ下げして中空ＰＣ部
材の垂直およびレベルの調整を簡単に行うことができ、
また、これによって施工精度の著しい向上が図れる。The vertical and level of the hollow PC member can be easily adjusted by raising and lowering the adjustment nut,
Further, this can significantly improve the construction accuracy.
【図１】中空ＰＣ部材の側面図である。FIG. 1 is a side view of a hollow PC member.
【図２】図１における柱脚部の一部拡大断面図である。FIG. 2 is a partially enlarged sectional view of a column base portion in FIG.
【図３】建て付け直後の中空ＰＣ部材の柱脚部の断面図
である。FIG. 3 is a cross-sectional view of a column base portion of a hollow PC member immediately after installation.
【図４】接合後の中空ＰＣ部材の柱脚部の縦断面図であ
る。FIG. 4 is a vertical cross-sectional view of a column base portion of a hollow PC member after joining.
【図５】接合後の中空ＰＣ部材の柱脚部の縦断面図であ
る。FIG. 5 is a vertical cross-sectional view of a column base portion of the hollow PC member after joining.
１…中空プレキャストコンクリ−ト部材（中空ＰＣ部
材）、２…主筋、３…スリーブ、４…調整ナット、５…
コンクリート、６…中空部、７…床スラブ、８…間隙、
９…型枠。1 ... Hollow precast concrete member (hollow PC member), 2 ... Main bar, 3 ... Sleeve, 4 ... Adjustment nut, 5 ...
Concrete, 6 ... Hollow part, 7 ... Floor slab, 8 ... Gap,
9 ... Formwork.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大河原 治 東京都港区元赤坂１丁目２番７号 鹿島建 設株式会社内 (72)発明者 縄田 信一 栃木県小山市横倉新田520番地 東京鐵鋼 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Osamu Okawara Osamu Okawara 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Inside the Iron and Steel Co., Ltd.
Claims (1)
材（以下、中空ＰＣ部材という）と、上階の中空ＰＣ部
材とを接合する上下階中空ＰＣ部材の接合方法におい
て、前記下階の中空ＰＣ部材の主筋の上端部を所定長さ
突出し、この主筋上端部にスリーブを取り付け、このス
リーブを直上階の床スラブに、床スラブより突出した状
態に埋設し、このスリーブ内にグラウト材を注入し、前
記上階の中空ＰＣ部材の主筋の下端部を所定長さ突出
し、この主筋下端部に調整ナットを螺合し、この調整ナ
ットより下方の主筋下端部を前記スリーブ内に挿入し、
かつ、前記上階の中空ＰＣ部材と前記床スラブとの間隙
部にコンクリートを打設することを特徴とする上下階中
空ＰＣ部材の接合方法。1. A method of joining a hollow precast concrete member of a lower floor (hereinafter referred to as a hollow PC member) and a hollow PC member of an upper floor to a hollow PC member of an upper floor and a lower floor, wherein the hollow PC of the lower floor is joined. The upper end of the main bar of the member is projected for a predetermined length, a sleeve is attached to the upper end of this main bar, this sleeve is embedded in the floor slab on the floor immediately above it so that it projects from the floor slab, and grout material is injected into this sleeve. , The lower end of the main bar of the hollow PC member of the upper floor is projected by a predetermined length, an adjusting nut is screwed onto the lower end of the main bar, and the lower end of the main bar below the adjusting nut is inserted into the sleeve.
A method for joining hollow PC members on the upper and lower floors, wherein concrete is placed in the gap between the hollow PC members on the upper floor and the floor slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4208180A JP2831514B2 (en) | 1992-08-04 | 1992-08-04 | Joining method for hollow PC members on upper and lower floors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4208180A JP2831514B2 (en) | 1992-08-04 | 1992-08-04 | Joining method for hollow PC members on upper and lower floors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0657864A true JPH0657864A (en) | 1994-03-01 |
| JP2831514B2 JP2831514B2 (en) | 1998-12-02 |
Family
ID=16551992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4208180A Expired - Fee Related JP2831514B2 (en) | 1992-08-04 | 1992-08-04 | Joining method for hollow PC members on upper and lower floors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2831514B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017218888A (en) * | 2017-08-03 | 2017-12-14 | 本清鋼材株式会社 | Pca COLUMN |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439290U (en) * | 1977-08-24 | 1979-03-15 | ||
| JPH01214641A (en) * | 1988-02-22 | 1989-08-29 | Fujita Corp | Construction of steel-pipe precast concrete pole |
| JPH0417257A (en) * | 1990-05-10 | 1992-01-22 | Matsushita Electric Ind Co Ltd | Inorganic and nonaqueous electrolyte battery |
-
1992
- 1992-08-04 JP JP4208180A patent/JP2831514B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439290U (en) * | 1977-08-24 | 1979-03-15 | ||
| JPH01214641A (en) * | 1988-02-22 | 1989-08-29 | Fujita Corp | Construction of steel-pipe precast concrete pole |
| JPH0417257A (en) * | 1990-05-10 | 1992-01-22 | Matsushita Electric Ind Co Ltd | Inorganic and nonaqueous electrolyte battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017218888A (en) * | 2017-08-03 | 2017-12-14 | 本清鋼材株式会社 | Pca COLUMN |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2831514B2 (en) | 1998-12-02 |
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