GB1578146A - Anchoring of an anchor bolt - Google Patents
Anchoring of an anchor bolt Download PDFInfo
- Publication number
- GB1578146A GB1578146A GB3733876A GB3733876A GB1578146A GB 1578146 A GB1578146 A GB 1578146A GB 3733876 A GB3733876 A GB 3733876A GB 3733876 A GB3733876 A GB 3733876A GB 1578146 A GB1578146 A GB 1578146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- tube
- bolt
- hole
- threaded
- 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
Links
- 238000004873 anchoring Methods 0.000 title claims description 10
- 239000000203 mixture Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 239000011440 grout Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 4
- 239000011443 resin grout Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 210000002435 tendon Anatomy 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
- F16B13/141—Fixing plugs in holes by the use of settable material
- F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
(54) ANCHORING OF AN ANCHOR BOLT
(71) We, FosRoc A.G., a Swiss
Company of Gartenstrasse 2, 6300 Zug,
Switzerland, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
The invention relates to the anchoring of an anchor bolt for use in the example construction, civil engineering or mining.
According to the invention there is provided an anchor sleeve for use in releasably holding an anchor bolt having at least one threaded end portion in a hole in a substrate, the sleeve comprising a tube, an annulus of cast self-setting composition being located within the tube and defining a smooth-walled bore for receiving the anchor bolt, a threaded portion being located within the tube and at or near one end of the tube to engage the threaded end portion of the anchor bolt, the tube being closed at the one end.
Preferably the tube is rigid and is formed of metal such as zinc coated steel. It is preferred to deform the closed end of the metal tube for example by making it taper for an improved mixing effect. A threaded nut is preferably held in the tube by the cast body of self-setting composition.
The annulus is preferably cast of a resin grout such as a polyester or epoxy grout, or a cementitious grout.
A method of anchoring an anchor bolt, according to the invention, comprises drilling a hole in a substance such as a rock or a precast body of concrete, securing a dummy bolt to the anchor sleeve defined above, locating a body of self-setting composition in the blind end of the drilled hole, driving the sleeve into the hole with rotation to cause the sleeve to mix the self-setting composition to cause that composition substantially to fill the annulus between the sleeve and the hole wall to secure the sleeve in the hole, removing the dummy bolt, and threading the anchor bolt into the sleeve secured in the hole.
Preferably the dummy bolt is threaded at one end to engage the sleeve and is adapted at the other end to be received in the chuck of a power drill or the like.
The self-setting composition may be a resin or cementitious grout either in free flowing form or pre-packed into a rupturable cartridge.
The invention includes an anchorage made by the method.
An embodiment of the invention is illustrated in the diagrammatic drawings accompanying the Provisional Specification in which
Figure 1 is a longitudinal sectional view of a sleeve about to be secured in a hole, and
Figure 2 is a view as Figure 1 showing a formed anchorage.
The sleeve comprises a zinc coated steel tube 1 having longitudinally spaced apart circumferential ribs 2. Within the tube 1 is a cast annular body 3 of self-setting composition such as a polyester grout of the type known as LOKSET (Registered Trade
Mark). Within the lower end of the tube 1 is cast a steel nut 4 having internal threads 5 to match those of a bolt 10, Figure 2. The nut 4 is externally knurled better to engage the set resin grout. The lower end of the tube 1 is sealed by a cap 6.
In use a cartridge 7 of a self-setting composition such as that described and claimed in patent 1,384,364 is located at the bottom of a hole 8 drilled in a body of set concrete 9. A dummy bolt, not shown, is located in the smooth walled borehole defined by the cast body 3, and is engaged with the nut 4, and the other end of the bolt is received in the chuck of a hand drill, not shown. The sleeve is then urged into the hole with rotation to rupture the cartridge 7 and release the ingredients to form a self-setting composition to secure the sleeve in the hole.
When the composition has set the dummy bolt is removed and the sleeve may then receive the bolt 10 to hold a plate 11 to the concrete 9.
The tube 1 may be formed of a metal tube, swaged at one end to close the tube to form a leading edge for improved dupture of the cartridge 7 and mixing of the ingredients. A shoulder may also be formed in the tilbe by the swaging to provide a location for the insertion of a separate threaded nut or, in a modification, the inside of the tube may itself be threaded in that region.
Although the term bolt has been used herein, this term is intended to embrace other anchoring elements such as reinforcing bars, strand tendons and the like.
WHAT WE CLAIM IS:
1. An anchor sleeve for use in releasably holding a bolt having at least one threaded end portion in a hole in a substrate, the sleeve comprising a tube, an annulus of cast self-setting composition located within the tube and defining a smooth-walled bore for receiving the anchor bolt, a threaded portion being located within the tube and at or near one end of the tube to engage the threaded end portion of the anchor bolt, the tube being closed at the one end.
2. A sleeve according to Claim 1, in which the tube is formed of metal.
3. A sleeve according to Claim 1 or 2, in which the tube has longitudinally spaced apart external circumferential ribs.
4. A sleeve according to any preceding
Claim, in which the annuls is cast of a resin grout or a cementitious grout.
5. A sleeve according to any preceding
Claim, in which the closed end of the sleeve is externally tapered.
6. A method of anchoring an anchor bolt, comprising drilling a hole in a substance such as a rock or a precast body of concrete, securing a dummy bolt to a sleeve according to any of Claims 1 to 5, locating a body of self-setting composition in the blind end of the drilled hole, driving the sleeve into the hole with rotation to cause the sleeve to mix the self-setting composition to cause that composition substantially to fill the annulus between the sleeve and the hole wall to secure the sleeve in the hole, removing the dummy bolt, and threading the anchor bolt into the sleeve secured in the hole.
7. A method according to Claim 6, in which the dummy bolt is threaded at one end to engage the sleeve and is adapted at the other end to be received in the chuck of a power drill or the like.
8. An anchorage made by a method according to Claim 6.
9. A sleeve for an anchor bolt, or a method of anchoring, substantially as
described with reference to the drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1. An anchor sleeve for use in releasably holding a bolt having at least one threaded end portion in a hole in a substrate, the sleeve comprising a tube, an annulus of cast self-setting composition located within the tube and defining a smooth-walled bore for receiving the anchor bolt, a threaded portion being located within the tube and at or near one end of the tube to engage the threaded end portion of the anchor bolt, the tube being closed at the one end.
2. A sleeve according to Claim 1, in which the tube is formed of metal.
3. A sleeve according to Claim 1 or 2, in which the tube has longitudinally spaced apart external circumferential ribs.
4. A sleeve according to any preceding
Claim, in which the annuls is cast of a resin grout or a cementitious grout.
5. A sleeve according to any preceding
Claim, in which the closed end of the sleeve is externally tapered.
6. A method of anchoring an anchor bolt, comprising drilling a hole in a substance such as a rock or a precast body of concrete, securing a dummy bolt to a sleeve according to any of Claims 1 to 5, locating a body of self-setting composition in the blind end of the drilled hole, driving the sleeve into the hole with rotation to cause the sleeve to mix the self-setting composition to cause that composition substantially to fill the annulus between the sleeve and the hole wall to secure the sleeve in the hole, removing the dummy bolt, and threading the anchor bolt into the sleeve secured in the hole.
7. A method according to Claim 6, in which the dummy bolt is threaded at one end to engage the sleeve and is adapted at the other end to be received in the chuck of a power drill or the like.
8. An anchorage made by a method according to Claim 6.
9. A sleeve for an anchor bolt, or a method of anchoring, substantially as
described with reference to the drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3733876A GB1578146A (en) | 1977-09-19 | 1977-09-19 | Anchoring of an anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3733876A GB1578146A (en) | 1977-09-19 | 1977-09-19 | Anchoring of an anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1578146A true GB1578146A (en) | 1980-11-05 |
Family
ID=10395690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3733876A Expired GB1578146A (en) | 1977-09-19 | 1977-09-19 | Anchoring of an anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1578146A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133103A (en) * | 1982-11-30 | 1984-07-18 | Francis Cunningham | Threaded socket for embedding in concrete |
| US4983083A (en) * | 1988-07-08 | 1991-01-08 | Hilti Aktiengesellschaft | Anchor rod |
| US5085547A (en) * | 1988-09-19 | 1992-02-04 | Establissements Vape S.A. | Screw fixing device for a concrete construction element |
| FR2675218A1 (en) * | 1991-04-12 | 1992-10-16 | Peugeot | Method for fastening an attached piece into a support by means of a resin |
| US5490750A (en) * | 1994-06-09 | 1996-02-13 | Gundy; William P. | Anchoring device for a threaded member |
| EP3144545A1 (en) * | 2015-09-18 | 2017-03-22 | fischerwerke GmbH & Co. KG | Mounting assembly |
-
1977
- 1977-09-19 GB GB3733876A patent/GB1578146A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133103A (en) * | 1982-11-30 | 1984-07-18 | Francis Cunningham | Threaded socket for embedding in concrete |
| US4983083A (en) * | 1988-07-08 | 1991-01-08 | Hilti Aktiengesellschaft | Anchor rod |
| US5085547A (en) * | 1988-09-19 | 1992-02-04 | Establissements Vape S.A. | Screw fixing device for a concrete construction element |
| FR2675218A1 (en) * | 1991-04-12 | 1992-10-16 | Peugeot | Method for fastening an attached piece into a support by means of a resin |
| US5490750A (en) * | 1994-06-09 | 1996-02-13 | Gundy; William P. | Anchoring device for a threaded member |
| EP3144545A1 (en) * | 2015-09-18 | 2017-03-22 | fischerwerke GmbH & Co. KG | Mounting assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |