JPH1037189A - Locking device of nut for tightening and fixing anchor bolt - Google Patents
Locking device of nut for tightening and fixing anchor boltInfo
- Publication number
- JPH1037189A JPH1037189A JP21606696A JP21606696A JPH1037189A JP H1037189 A JPH1037189 A JP H1037189A JP 21606696 A JP21606696 A JP 21606696A JP 21606696 A JP21606696 A JP 21606696A JP H1037189 A JPH1037189 A JP H1037189A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- anchor bolt
- hardening material
- tightening
- steel bar
- 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
- 239000000463 material Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 5
- 239000008267 milk Substances 0.000 abstract description 5
- 210000004080 milk Anatomy 0.000 abstract description 5
- 235000013336 milk Nutrition 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、外側面をネジ状に
形成した異形棒鋼をアンカーボルトとして用い、そのア
ンカーボルトの上部をベースプレートの挿通孔に挿通し
てナットにより締付固定する柱脚用固定技術に関するも
のであり、特に前記ナットの弛みを防止するための改良
技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column base for using a deformed steel bar having an outer surface formed into a screw shape as an anchor bolt, inserting the upper portion of the anchor bolt into an insertion hole of a base plate, and tightening and fixing with a nut. The present invention relates to a fixing technique, and particularly to an improved technique for preventing the nut from being loosened.
【０００２】[0002]
【従来の技術】従来、この種の柱脚用固定技術における
ナットの弛み止め手段としては、ダブルナットを用いる
ものや、機械による大きな締付力を用いるものが知られ
ている。しかしながら、アンカーボルトとして異形棒鋼
を用いるこの種の技術手段においては、その棒鋼の寸法
公差が大きく精度がよくないため、良好な螺合状態は望
めないことから、比較的小さな振動でも弛みやすく、前
者のダブルナットを用いる場合でも大きな締付力は必要
とされた。したがって、前記従来技術においては、締付
作業に大きな労力を要したり、機械を使用するため作業
が大がかりになるばかりでなく、作業スペースに制約の
ある場合には作業自体に大きな制約を伴うといった問題
があった。他方、ナットに横穴を形成して、その横穴を
介してセメントミルク等の流動性のよい硬化材を注入す
ることにより、アンカーボルトとナットとの間隙部を固
めるという弛み止め手段も考えられるが、横穴から的確
に注入すること自体に技術的な困難が伴うため、圧入器
具などの使用が必要となり実用的ではない。2. Description of the Related Art Conventionally, as a means for preventing a nut from being loosened in this type of column base fixing technique, a method using a double nut and a method using a large tightening force by a machine are known. However, in this type of technical means using a deformed steel bar as an anchor bolt, the dimensional tolerance of the steel bar is large and the accuracy is not good, so that a good screwing state cannot be expected. Even when a double nut was used, a large tightening force was required. Therefore, in the above-mentioned conventional technology, a large amount of labor is required for the tightening work, and not only the work becomes large due to the use of the machine, but also when the work space is restricted, the work itself is greatly restricted. There was a problem. On the other hand, by forming a lateral hole in the nut and injecting a hardening material having good fluidity such as cement milk through the lateral hole, loosening prevention means of solidifying the gap between the anchor bolt and the nut is also conceivable, Since it is technically difficult to accurately inject from the side hole itself, it is not practical because it requires the use of a press-fitting device.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、以上のよう
な技術的な事情に鑑みてなされたもので、その目的とす
るところは、加工性のよいナット側に簡単な工夫を加え
ることにより、セメントミルクなどの流動性を有する硬
化材を前記アンカーボルトとナットとの間隙部に供給す
るための注入作業に関する簡易化を図り、これにより実
用的で確実なナットの弛み止め手段を提供し、延いては
ナットに対する必要締付力を軽減して前記柱脚の固定作
業の作業性を改善する点にある。SUMMARY OF THE INVENTION The present invention has been made in view of the above technical circumstances, and an object thereof is to add a simple device to the nut side having good workability. In order to simplify the injection work for supplying a hardened material having fluidity such as cement milk to the gap between the anchor bolt and the nut, thereby providing a practical and reliable means for preventing the nut from loosening, In other words, the required tightening force on the nut is reduced to improve the workability of fixing the column base.
【０００４】[0004]
【課題を解決するための手段】本発明は、前記課題を解
決するため、外側面をネジ状に形成した異形棒鋼をアン
カーボルトとして用い、該アンカーボルトの上部をベー
スプレートの挿通孔に挿通してナットにより締付固定す
る柱脚固定手段において、少なくとも前記アンカーボル
トとナットとの螺合部のいずれか一方に縦通路を形成す
るとともに、前記ナットの上端部に流動性を有する硬化
材を貯留して前記縦通路に導く凹状部を形成したことを
特徴とする。前記異形棒鋼として軸方向に形成されたリ
ブの外側面をネジ状に形成した偏平状の異形棒鋼を用
い、その異形棒鋼とナットとの間に形成される間隙を縦
通路としてもよい。また、前記凹状部をロート状に形成
したり、ナットの上端部に装着する別部材により形成し
てもよい。According to the present invention, in order to solve the above-mentioned problems, a deformed steel bar having a screw-shaped outer surface is used as an anchor bolt, and an upper portion of the anchor bolt is inserted into an insertion hole of a base plate. In a column base fixing means for tightening and fixing with a nut, a vertical passage is formed in at least one of a screw portion of the anchor bolt and the nut, and a hardening material having fluidity is stored in an upper end portion of the nut. A concave portion leading to the vertical passage is formed. As the deformed bar, a flat deformed bar in which the outer surface of a rib formed in the axial direction is formed in a screw shape may be used, and a gap formed between the deformed bar and the nut may be used as a vertical passage. Further, the concave portion may be formed in a funnel shape, or may be formed by a separate member attached to an upper end portion of the nut.
【０００５】[0005]
【発明の実施の形態】前記異形棒鋼としては、外側面を
ネジ状に形成し、そのネジ状部分にナットを螺合して締
付固定し得るものであれば、軸方向に形成されたリブの
外側面のみをネジ状に形成した偏平状のものでも、外側
面全周をネジ状に形成した円形断面のものでもよい。ま
た、そのネジ状部分は、ナットとの螺合部のみに部分的
に形成したものでも、全長にわたって形成したものでも
よい。前記縦通路は、少なくとも前記アンカーボルトと
ナットとの螺合部のいずれか一方に形成されたものでよ
い。すなわち、アンカーボルト側あるいはナット側のい
ずれか一方に縦通路を形成したものでも、それらの両者
に形成したものでもよい。また、前記アンカーボルトと
ナットとの螺合部分のみに部分的に形成したものでも、
全長にわたって形成したものでもよい。さらに、前記縦
通路は、アンカーボルトの軸方向に沿って縦方向に連続
的に形成され、螺合部に連通しているものであればよ
く、必ずしも直線状である必要はなく、螺旋状に形成さ
れたものでもよい。前記凹状部は、流動性を有する硬化
材をナットの上端部において一時的に貯留し、前記縦通
路を介してアンカーボルトとナットとの間隙部に注入す
るための受け溜部としての機能を有するものであればよ
く、その断面形状はロート状などの適宜の形状に形成す
ることが可能であり、その大きさも場合に応じて設定す
ればよい。前記硬化材としては、セメントミルクやグラ
ウトモルタル、あるいは合成樹脂などからなり、前記縦
通路を介してアンカーボルトとナットとの間隙部に流入
して硬化し得る流動性を有するものが用いられる。BEST MODE FOR CARRYING OUT THE INVENTION As the deformed steel bar, a rib formed in the axial direction is used as long as its outer surface is formed in a screw shape and a nut can be screwed into the screw portion to be tightened and fixed. May be a flat shape in which only the outer surface is formed in a screw shape, or a circular shape in which the entire outer surface is formed in a screw shape. Further, the threaded portion may be formed only partially on the screwed portion with the nut, or may be formed over the entire length. The vertical passage may be formed at least in one of the screw portions of the anchor bolt and the nut. That is, either a vertical passage may be formed on either the anchor bolt side or the nut side, or both may be formed on both of them. Further, even when only the screw portion of the anchor bolt and the nut is partially formed,
It may be formed over the entire length. Furthermore, the vertical passage is formed continuously in the vertical direction along the axial direction of the anchor bolt, and may be any one that communicates with the threaded portion. It may be formed. The concave portion has a function as a receiving portion for temporarily storing a hardening material having fluidity at an upper end portion of the nut and injecting the hardened material into a gap between the anchor bolt and the nut via the vertical passage. Any shape can be used, and its cross-sectional shape can be formed into an appropriate shape such as a funnel shape, and its size may be set according to the case. The hardening material is made of cement milk, grout mortar, synthetic resin, or the like, and has a fluidity that can flow into the gap between the anchor bolt and the nut through the vertical passage and harden.
【０００６】[0006]
【実施例】以下、図面を用いて本発明の実施例に関して
説明する。図１は本発明の適用場面を例示した縦断面図
である。また、図２〜図４は本発明の第１実施例を示し
たもので、図２はその螺合状態を示した縦断面図、図３
は同平面図、図４は硬化材注入後の状態を示した縦断面
図である。図中、１はアンカーボルトで、基礎コンクリ
ート２に定着されている。アンカーボルト１は、異形棒
鋼から構成され、外側面には雄ネジが形成されており、
その上部は基礎コンクリート２から突出している。その
アンカーボルト１の突出部は、鉄骨柱３のベースプレー
ト４に形成された挿通孔５に挿通され、上部に螺合され
るナット６を介してベースプレート４を基礎コンクリー
ト２に対して締付固定し得るように構成されている。な
お、図中、７は無収縮モルタル等からなるレベル調整
材、８は堰板、９はグラウト材注入管である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view illustrating an application scene of the present invention. 2 to 4 show a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing the screwed state, and FIG.
Is a plan view of the same, and FIG. 4 is a longitudinal sectional view showing a state after the hardening material is injected. In the figure, reference numeral 1 denotes an anchor bolt fixed to the foundation concrete 2. The anchor bolt 1 is made of deformed steel bar, and has an external thread formed on an outer surface thereof.
The upper part protrudes from the foundation concrete 2. The projecting portion of the anchor bolt 1 is inserted into an insertion hole 5 formed in the base plate 4 of the steel column 3, and the base plate 4 is tightened and fixed to the foundation concrete 2 via a nut 6 screwed to an upper portion. Is configured to obtain. In the figure, 7 is a level adjusting material made of non-shrink mortar, etc., 8 is a weir plate, and 9 is a grout material injection pipe.
【０００７】次に、本発明の特徴を実施例に従って説明
する。図２に示すように、本実施例においては、前記ナ
ット６の上端部にロート状の凹状部１０が形成されてい
る。また、図３に示すように、前記アンカーボルト１と
して偏平状の異形棒鋼が用いられ、両側に位置するリブ
部分の外側面には雄ネジが形成されており、ナット６と
螺合した場合にそれらの間に縦通路１１が形成される。
しかして、前記ナット６の上端部に形成された凹状部１
０にセメントミルクなどの流動性のよい硬化材を注入す
ると、その硬化材は一時的に凹状部１０に貯留され、自
重によって前記縦通路１１を介してアンカーボルト１と
ナット６との螺合部に形成される両ネジ間の間隙部に流
入して硬化することにより、両者間の結合力を大幅に強
化することになる。なお、図４はその注入後の螺合部の
状態を示した縦断面図で、１２は硬化材を示したもので
ある。Next, the features of the present invention will be described with reference to embodiments. As shown in FIG. 2, in the present embodiment, a funnel-shaped concave portion 10 is formed at the upper end of the nut 6. As shown in FIG. 3, a flat deformed steel bar is used as the anchor bolt 1, and a male screw is formed on an outer surface of a rib portion located on both sides. A vertical passage 11 is formed between them.
Thus, the concave portion 1 formed at the upper end of the nut 6
When a hardening material having a good fluidity such as cement milk is poured into the hollow portion 0, the hardening material is temporarily stored in the concave portion 10 and is screwed into the anchor bolt 1 and the nut 6 via the vertical passage 11 by its own weight. By flowing into the gap between the two screws formed and hardening, the coupling force between the two is greatly enhanced. FIG. 4 is a longitudinal sectional view showing the state of the threaded portion after the injection, and 12 shows a hardening material.
【０００８】図５及び図６は本発明の第２実施例を示し
たもので、図５はその縦断面図、図６は同平面図であ
る。前述の第１実施例と同じ構成部分には同じ符号を付
して比較すると、第１実施例の場合には偏平状のアンカ
ーボルト１とナット６との間に形成される間隙部を利用
して前記縦通路１１を形成したのに対して、本実施例に
おいてはナット６側の内面に溝状の縦通路１３を形成し
た点で特徴を有する。したがって、アンカーボルト１と
しては、前述の偏平状の異形棒鋼のほか、円形断面の外
側面全周をネジ状に形成した異形棒鋼を用いることもで
きる。なお、縦通路１３の設置数を増やすことも可能で
ある。FIGS. 5 and 6 show a second embodiment of the present invention. FIG. 5 is a longitudinal sectional view and FIG. 6 is a plan view of the same. The same components as those in the first embodiment are denoted by the same reference numerals and compared. In the first embodiment, a gap formed between the flat anchor bolt 1 and the nut 6 is used. This embodiment is characterized in that a groove-like vertical passage 13 is formed on the inner surface on the nut 6 side, while the vertical passage 11 is formed. Therefore, as the anchor bolt 1, besides the above-mentioned flat deformed steel bar, a deformed steel bar in which the entire outer surface of a circular cross section is formed in a screw shape can also be used. Note that it is also possible to increase the number of vertical passages 13 to be installed.
【０００９】図７は本発明の第３実施例を示した縦断面
図である。前述の第１実施例あるいは第２実施例と同じ
構成部分には同じ符号を付して比較すると、第１及び第
２実施例の場合にはナット６自体の上端部に凹状部１０
を形成したのに対して、本実施例においてはナット６と
は別部材の凹状部材１４を用いて、ナット６の上端部に
凹状部１５を形成した点で特徴を有する。この場合に
は、別部材からなる凹状部材１４を用いることから、ナ
ット６の大きさや形状に制約されることなく、適度の大
きさの凹状部１５が自由に形成できる点で優れている。FIG. 7 is a longitudinal sectional view showing a third embodiment of the present invention. When the same components as those in the first embodiment or the second embodiment are denoted by the same reference numerals and compared, in the case of the first and second embodiments, the concave portion 10 is formed at the upper end of the nut 6 itself.
However, the present embodiment is characterized in that a concave portion 15 is formed at the upper end portion of the nut 6 by using a concave member 14 which is a separate member from the nut 6. In this case, since the concave member 14 made of a separate member is used, it is excellent in that the concave portion 15 having an appropriate size can be freely formed without being restricted by the size and shape of the nut 6.
【００１０】[0010]
【発明の効果】本発明によれば、ナットの上端部に凹状
部を形成するというきわめて簡単な構成を付加するだけ
で、硬化材の注入に当っては、ナットの上方から凹状部
に硬化材を注入するだけで、その凹状部に貯留され、自
重により前記縦通路を介してアンカーボルトとナットと
の間隙部に確実に充填され硬化する結果、きわめて簡単
な作業に拘らずナットの弛みを的確に防止できるという
実用的できわめて優れた効果を得ることができる。ま
た、アンカーボルトとナットとの結合力が強化される結
果、ナットの締付力を従来より軽減しても十分な固定状
態が得られるので、アンカーボルトの締付作業の改善に
も有効である。According to the present invention, only a very simple structure of forming a concave portion at the upper end of the nut is added, and when the hardening material is injected, the hardening material is inserted into the concave portion from above the nut. Is filled in the concave portion, and the gap between the anchor bolt and the nut is securely filled and hardened through the vertical passage by its own weight. As a result, the nut is properly loosened regardless of extremely simple work. Practical and extremely excellent effects that can be prevented can be obtained. Further, as a result of strengthening the coupling force between the anchor bolt and the nut, a sufficient fixing state can be obtained even if the tightening force of the nut is reduced as compared with the conventional case, which is also effective for improving the tightening operation of the anchor bolt. .
【図１】 本発明の適用例を示した縦断面図である。FIG. 1 is a longitudinal sectional view showing an application example of the present invention.
【図２】 本発明の第１実施例を示した縦断面図であ
る。FIG. 2 is a longitudinal sectional view showing a first embodiment of the present invention.
【図３】 同実施例の平面図である。FIG. 3 is a plan view of the embodiment.
【図４】 同実施例の硬化材注入後の状態を示した縦断
面図である。FIG. 4 is a longitudinal sectional view showing a state after the hardening material is injected according to the embodiment.
【図５】 本発明の第２実施例を示した縦断面図であ
る。FIG. 5 is a longitudinal sectional view showing a second embodiment of the present invention.
【図６】 同実施例の平面図である。FIG. 6 is a plan view of the embodiment.
【図７】 本発明の第３実施例を示した縦断面図であ
る。FIG. 7 is a longitudinal sectional view showing a third embodiment of the present invention.
１…アンカーボルト、２…基礎コンクリート、３…鉄骨
柱、４…ベースプレート、５…挿通孔、６…ナット、７
…レベル調整材、８…堰板、９…グラウト材注入管、１
０…凹状部、１１…縦通路、１２…硬化材、１３…縦通
路、１４…凹状部材、１５…凹状部DESCRIPTION OF SYMBOLS 1 ... Anchor bolt, 2 ... Foundation concrete, 3 ... Steel column, 4 ... Base plate, 5 ... Insertion hole, 6 ... Nut, 7
... Level adjusting material, 8 ... Weir plate, 9 ... Grout material injection pipe, 1
0: concave portion, 11: vertical passage, 12: hardening material, 13: vertical passage, 14: concave member, 15: concave portion
Claims (4)
ンカーボルトとして用い、該アンカーボルトの上部をベ
ースプレートの挿通孔に挿通してナットにより締付固定
する柱脚固定手段において、少なくとも前記アンカーボ
ルトとナットとの螺合部のいずれか一方に縦通路を形成
するとともに、前記ナットの上端部に流動性を有する硬
化材を貯留して前記縦通路に導く凹状部を形成したこと
を特徴とするアンカーボルト締付固定用ナットの弛み止
め装置。1. A pedestal fixing means for using a deformed steel bar having an outer surface formed into a screw shape as an anchor bolt, inserting an upper portion of the anchor bolt into an insertion hole of a base plate and fastening and fixing the anchor bolt with a nut. A vertical passage is formed in one of the threaded portions of the bolt and the nut, and a concave portion is formed at an upper end of the nut to store a hardening material having fluidity and to be guided to the vertical passage. To prevent loosening of nuts for tightening and fixing anchor bolts.
リブの外側面をネジ状に形成した偏平状の異形棒鋼を用
い、その異形棒鋼とナットとの間に形成される間隙を縦
通路としたことを特徴とする請求項１記載のアンカーボ
ルト締付固定用ナットの弛み止め装置。2. A flat deformed steel bar in which an outer surface of a rib formed in an axial direction is formed in a thread shape as the deformed steel bar, and a gap formed between the deformed steel bar and a nut is formed as a vertical passage. 2. The locking device for an anchor bolt tightening and fixing nut according to claim 1, wherein:
特徴とする請求項１又は２記載のアンカーボルト締付固
定用ナットの弛み止め装置。3. The loosening prevention device for an anchor bolt tightening and fixing nut according to claim 1, wherein the concave portion is formed in a funnel shape.
別部材により形成したことを特徴とする請求項１、２又
は３記載のアンカーボルト締付固定用ナットの弛み止め
装置。4. The locking device according to claim 1, wherein the concave portion is formed by a separate member mounted on an upper end portion of the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21606696A JP3805436B2 (en) | 1996-07-29 | 1996-07-29 | Anchor bolt tightening fixing nut locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21606696A JP3805436B2 (en) | 1996-07-29 | 1996-07-29 | Anchor bolt tightening fixing nut locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1037189A true JPH1037189A (en) | 1998-02-10 |
| JP3805436B2 JP3805436B2 (en) | 2006-08-02 |
Family
ID=16682747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21606696A Expired - Fee Related JP3805436B2 (en) | 1996-07-29 | 1996-07-29 | Anchor bolt tightening fixing nut locking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3805436B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7795818B1 (en) * | 2024-08-02 | 2026-01-08 | 株式会社ダイカ | Slope stabilization structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119682B (en) * | 2017-04-25 | 2019-03-12 | 温州鸿越建设工程有限公司 | A kind of soil nail wall and its construction method |
-
1996
- 1996-07-29 JP JP21606696A patent/JP3805436B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7795818B1 (en) * | 2024-08-02 | 2026-01-08 | 株式会社ダイカ | Slope stabilization structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3805436B2 (en) | 2006-08-02 |
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