JPH0521532Y2 - - Google Patents
Info
- Publication number
- JPH0521532Y2 JPH0521532Y2 JP1986012982U JP1298286U JPH0521532Y2 JP H0521532 Y2 JPH0521532 Y2 JP H0521532Y2 JP 1986012982 U JP1986012982 U JP 1986012982U JP 1298286 U JP1298286 U JP 1298286U JP H0521532 Y2 JPH0521532 Y2 JP H0521532Y2
- Authority
- JP
- Japan
- Prior art keywords
- tension steel
- cylinder
- steel material
- hole
- cylindrical body
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000011440 grout Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は定着アンカーに関するものである。[Detailed explanation of the idea] [Industrial application field] This invention relates to anchoring anchors.
定着アンカーとして円柱状のコンクリート製の
幹体にPC鋼材先端を固定し、削孔内にてグラウ
ト材によつて定着するものが開発されている。
An anchor has been developed in which the tip of the prestressed steel material is fixed to a cylindrical concrete trunk, and the anchor is anchored in the borehole using grout.
このような定着アンカーとしての問題点は、永
久用アンカーとして使用する場合、コンクリート
製の幹体であると耐圧強度が充分でなく、充分な
信頼が置けないことである。 The problem with such fixed anchors is that when used as permanent anchors, concrete trunks do not have sufficient pressure resistance and are not reliable.
このようなために、鋼製等のパイプ内にコンク
リートを充填して幹体を形成することが考えられ
るが、肉厚が設計上適当なパイプは入手が困難で
あり、またコンクリートやモルタルとの付着を良
好にするためにパイプ内外周を凹凸にするのは難
しく製造費が高価となる。 For this reason, it is conceivable to fill a steel pipe with concrete to form the main body, but it is difficult to obtain a pipe with an appropriate wall thickness due to the design, and it is difficult to obtain a pipe with an appropriate wall thickness, and it is not compatible with concrete or mortar. It is difficult to make the inner and outer circumferences of the pipe uneven in order to improve adhesion, and manufacturing costs are high.
すなわちパイプ自体を凹凸変形するのは製作が
困難であり、その設備に多額の費用がかかり、割
高な異形パイプとなる。またパイプにコイル鉄筋
を巻付けたり摩擦粒子を吹付けたりする方法は、
パイプ外周を正確に凹凸にするのは比較的に難し
く、同一パイプを多量に製造するのは不適当であ
る。 In other words, it is difficult to manufacture the pipe itself to have irregularities, and the equipment requires a large amount of cost, resulting in a relatively expensive irregularly shaped pipe. There are also methods for wrapping coiled reinforcing bars around pipes and spraying friction particles on them.
It is relatively difficult to accurately make the outer circumference of a pipe uneven, and it is inappropriate to manufacture large quantities of the same pipe.
この考案にかかる定着アンカーは、鋳物製であ
つて、外周面に互いに交叉する二条のら旋状の突
条を突設した鋳鉄製の有底筒体の底壁に緊張鋼材
挿通孔を複数穿設して支圧壁とし、該筒体内にア
ンボンドシース内に挿通した緊張鋼材を挿入し、
緊張鋼材の先端を緊張鋼材挿通孔より突出させ締
着部材で定着し、この筒体を削孔内に位置させ、
削孔内及び筒体内にグラウト材を充填したことを
特徴とする。
The fixing anchor according to this invention is made of cast iron, and has a plurality of tension steel insertion holes in the bottom wall of a bottom wall of a cast iron cylinder with two spiral protrusions that intersect with each other protruding from the outer peripheral surface. A tension steel member inserted into the unbonded sheath is inserted into the cylindrical body to serve as a bearing wall.
The tip of the tension steel material is made to protrude from the tension steel material insertion hole and fixed with a fastening member, and this cylindrical body is positioned in the drilled hole.
It is characterized by filling the drilled hole and the cylinder with grout material.
以下、図に示す一実施例に基づきこの考案を詳
細に説明する。
This invention will be explained in detail below based on an embodiment shown in the drawings.
図において１は鋳物製の筒体である。筒体は円
筒状であつて、第１図及び第２図実施例では互い
に交叉する二条のら旋状の突条２，２が内外周面
に各々突設されて凹凸となつている。また筒体１
の一端は支圧壁３によつて塞がれて、該支圧壁３
には緊張鋼挿通孔４が複数穿設されている。 In the figure, 1 is a cylindrical body made of cast iron. The cylinder has a cylindrical shape, and in the embodiments shown in FIGS. 1 and 2, two spiral protrusions 2, 2 intersecting with each other are provided on the inner and outer circumferential surfaces, respectively, to form an uneven surface. Also, cylinder body 1
One end is closed by a bearing pressure wall 3, and the bearing pressure wall 3
A plurality of tension steel insertion holes 4 are bored in the.
該筒体１内にアンボンドシース５内に挿通され
た緊張鋼材６が挿入されている。アンボンドシー
ス５としてはポリエチレンシース等が採用され、
緊張鋼材６としてはPC鋼棒、PC鋼線、PC鋼よ
り線等が採用可能である。 A tension steel material 6 inserted into the unbonded sheath 5 is inserted into the cylindrical body 1. A polyethylene sheath or the like is used as the unbonded sheath 5.
As the tension steel material 6, a PC steel bar, a PC steel wire, a PC steel stranded wire, etc. can be adopted.
緊張鋼材６の先端が筒体１の緊張鋼材挿通孔４
から外側に突出させられて、締着部材７によつて
定着されている。 The tip of the tension steel material 6 is inserted into the tension steel material insertion hole 4 of the cylindrical body 1.
It is made to protrude outward from and is fixed by a fastening member 7.
筒体１内にはモルタル、コンクリート等のグラ
ウト材８が充填されて幹体Ａが形成されている。 A trunk body A is formed by filling the cylindrical body 1 with a grouting material 8 such as mortar or concrete.
この幹体Ａが地中の削孔９内に位置されて削孔
９内にモルタル或いはコンクリート等のグラウト
材１０が注入されている。 This trunk body A is located in a hole 9 in the ground, and a grout material 10 such as mortar or concrete is injected into the hole 9.
以上のような定着アンカーにおいて、緊張鋼材
６を緊張してプレストレス力を導入した場合、幹
体Ａ外周の凹凸によつてグラウト材１０に定着さ
れているため、大きな荷重に耐え得ることができ
る。 In the anchoring anchor as described above, when a prestressing force is introduced by tensioning the tension steel material 6, it is able to withstand a large load because it is anchored to the grout material 10 by the irregularities on the outer periphery of the trunk body A. .
なお、幹体Ａには、実施例のように筒体１内周
面にも突条２を突設すれば、筒体内グラウト材８
との付着も良好で強固な幹体Ａとなる。 In addition, if the trunk body A is provided with protrusions 2 on the inner circumferential surface of the cylinder 1 as in the embodiment, the grout material 8 inside the cylinder
It also has good adhesion to the trunk body A, making it strong.
さらに筒体１は鋳物製であつて、肉厚も設計通
りのものが得られ、信頼出来る幹体となる。 Furthermore, the cylinder body 1 is made of cast metal, and the wall thickness can be obtained as designed, making it a reliable trunk body.
この考案は以上のような構成を有するため、以
下のような効果を得ることができる。
Since this invention has the above configuration, the following effects can be obtained.
○イ 鋳物製の筒体外周に交叉する二条のらせん条
が突設されていることと、筒体内と削孔内にグ
ラウト材が充填されていること及び筒底に緊張
鋼材を定着したことと相俟つてアンカーの耐圧
は強大となり、信頼性の高い圧縮型の定着アン
カーとなる。○B. Two intersecting spiral strips protrude from the outer periphery of the cast cylinder, grout is filled inside the cylinder and the drilled holes, and tension steel is fixed to the bottom of the cylinder. Combined with this, the anchor has a strong pressure resistance, making it a highly reliable compression type anchor.
○ロ 筒体は鋳物製であるため、設計通りの肉厚と
することができ、強度に信頼性の高い定着アン
カーとなる。○B Since the cylindrical body is made of cast metal, it can be made as thick as designed, making it a strong and reliable fixing anchor.
○ハ 筒体は鋳物製であり、外周表面を容易に凹凸
成形でき、グラウト材と良好に固着可能な定着
アンカーとなる。○C The cylindrical body is made of cast metal, and the outer peripheral surface can be easily formed into irregularities, making it a fixing anchor that can be well fixed to the grout material.
以上のように本考案にかかる定着アンカーであ
れば、耐圧強度大なる永久アンカーとして使用で
きる。 As described above, the fixing anchor according to the present invention can be used as a permanent anchor with high pressure resistance.
第１図は筒体の一部切欠き正面図、第２図はそ
の側面図、第３図は根塊体の削孔内への定着状態
の縦断面図、第４図は定着アンカーの全体図であ
る。
Ａ……幹体、１……筒体、２……突条、３……
支圧壁、４……緊張鋼材挿通孔、５……アンボン
ドシース、６……緊張鋼材、７……締着部材、８
……筒体内グラウト材、９……削孔、１０……グ
ラウト材。
Figure 1 is a partially cutaway front view of the cylindrical body, Figure 2 is its side view, Figure 3 is a longitudinal cross-sectional view of the root mass anchored in the excavated hole, and Figure 4 is the entire anchorage. It is a diagram. A...Trunk body, 1...Cylinder body, 2...Protrusion, 3...
Bearing wall, 4... tension steel material insertion hole, 5... unbonded sheath, 6... tension steel material, 7... fastening member, 8
... Grout material inside the cylinder, 9... Hole drilling, 10... Grout material.
Claims (1)
突設した鋳鉄製の有底筒体の底壁に緊張鋼材挿通
孔を複数穿設して支圧壁とし、該筒体内にアンボ
ンドシース内に挿通した緊張鋼材を挿入し、緊張
鋼材の先端を緊張鋼材挿通孔より突出させ、締着
部材で定着し、この筒体を削孔内に位置させ、削
孔内及び筒体内にグラウト材を充填したことを特
徴とする定着アンカー。 A plurality of tension steel insertion holes are bored in the bottom wall of a bottomed cast iron cylinder with two intersecting spiral protrusions protruding from the outer circumferential surface to serve as a bearing wall, and an unbonded sheath is installed inside the cylinder. Insert the tension steel material inserted into the hole, make the tip of the tension steel material protrude from the tension steel material insertion hole, fix it with the fastening member, position this cylindrical body in the drilled hole, and grout the material inside the drilled hole and the cylinder body. A fixing anchor characterized by being filled with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986012982U JPH0521532Y2 (en) | 1986-01-31 | 1986-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986012982U JPH0521532Y2 (en) | 1986-01-31 | 1986-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62143745U JPS62143745U (en) | 1987-09-10 |
| JPH0521532Y2 true JPH0521532Y2 (en) | 1993-06-02 |
Family
ID=30801621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986012982U Expired - Lifetime JPH0521532Y2 (en) | 1986-01-31 | 1986-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521532Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713686A (en) * | 1980-06-30 | 1982-01-23 | Matsushita Electric Works Ltd | Discharge lamp unit |
-
1986
- 1986-01-31 JP JP1986012982U patent/JPH0521532Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713686A (en) * | 1980-06-30 | 1982-01-23 | Matsushita Electric Works Ltd | Discharge lamp unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62143745U (en) | 1987-09-10 |
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