CN102192224A - Anchor bolt and anchoring method matched with anchor bolt - Google Patents
Anchor bolt and anchoring method matched with anchor bolt Download PDFInfo
- Publication number
- CN102192224A CN102192224A CN 201010584334 CN201010584334A CN102192224A CN 102192224 A CN102192224 A CN 102192224A CN 201010584334 CN201010584334 CN 201010584334 CN 201010584334 A CN201010584334 A CN 201010584334A CN 102192224 A CN102192224 A CN 102192224A
- Authority
- CN
- China
- Prior art keywords
- bolt
- crab
- hole
- conical head
- anchor pole
- 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.)
- Pending
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an anchoring method, which comprises the following steps of: drilling a straight hole at a place prepared for placing an anchor bolt; performing reaming at the bottom of the straight hole by using a die expanding bottom drill head and then clearing the hole; knocking a conical head and a sleeve matched with a bottom bole into the bottom hole by using a tool, spreading the sleeve along the conical head to obtain an effect similar to die-expanding of a bottom anchor bolt, and reserving a section of screw rod; continuously infusing a chemical adhesive into the hole, and then inserting the anchor rod part of the anchor bolt; and connecting an internal threaded hole of an anchoring end part with the reserved screw rod, and bearing when a colloid is solidified. The anchoring method has the following advantages that: two types of anchoring modes of shape combination and chemical adhesion are combined together for joint bearing to increase the anchoring safety performance, and because of the isolation of the chemical adhesive, the engineering maintenance cost and the maintenance difficulty are reduced.
Description
Technical field
The crab-bolt that the present invention relates to a kind of anchoring process in concrete and match.
Background technique
Present anchoring process both domestic and external and corresponding with it crab-bolt form have three kinds:
One, intumescent metal crab-bolt: its carrying principle produces expansive force when being the crab-bolt installation, and then produces frictional force, and load is delivered to concrete substrate by frictional force.
Expansion anchor is very high to substrate requirements, and substrate intensity is very big to the influence of expansive force, in vibration environment, lost efficacy easily, and installation process influenced by personal factor very big, be easy to reduce expansive force
Two, reaming type metal crab-bolt: in concrete, forming the protruding hole of taper, in locking of sleeve crab-bolt and concrete by special-purpose counterbore cutter head.
If simple use metal crab-bolt owing to still there is the gap between metal crab-bolt and concrete hole, can have concrete hole to continue the effect that destroys when bearing the long-term low-amplitude load that continues, and also is a kind of damage to concrete substrate.And under concrete substrate situation in bad order, the metal crab-bolt can't very provide due bearing capacity, as hole, crack and the incomplete situation of curing etc. are arranged in the concrete.
Three, chemical anchor bolts all are bore straight hole in concrete after, to use Chemical Felter that screw rod is bonded in the concrete, and its carrying principle is a bonding.Load is delivered to concrete by the binding materials such as resin that solidify from crab-bolt.
The chemical bonding crab-bolt is when running into impact force, and adhesive layer destroys easily and causes bonding failure; When concrete crack passed crab-bolt, along with the expansion in crack, its destruction also was sudden, does not have follow-up anchor force, makes the bearing capacity instability of crab-bolt.Increase in time, because there is the aging conditions of chemical colloid, chemical bonding power also is in continuous loss, does not also have follow-up guarantee can also carry after chemical bonding is lost efficacy.
Therefore, a kind of invention of the new crab-bolt that can guarantee the anchoring process of good bearing capacity performance when good adhesive property is provided and match is imperative.
Summary of the invention
Problem to be solved by this invention be traditional bonding mode when running into impact force, adhesive layer destroys easily and causes bonding failure, the bearing capacity instability of crab-bolt; Simple use metal crab-bolt can have the effect that continues destruction to concrete hole, makes the metal crab-bolt that cooperates with it that problems such as due bearing capacity can't be provided.
In order to solve the problems of the technologies described above, the invention provides a kind of back expands the end and adds chemical bonding anchoring process and reaming type chemical bonding crab-bolt, the concrete of required anchoring place of its reinforcement, increase bearing safety, make crab-bolt can withstand shocks load, seismic load and fatigue loading, improve anchor force, chemical adhesive is kept apart crab-bolt and concrete simultaneously, can isolate the diffusing diffusing electric current of fan in concrete of mixing, preventing the crab-bolt potential corrosion.After colloid lost efficacy, can improve crab-bolt Security and bearing capacity by the force way carrying of the conical head of crab-bolt end according to the reaming type crab-bolt, particularly fix in the tensile region.Fixedly the time, closely knit for ground concrete because chemical adhesive is filled the space between crab-bolt and concrete, prevent that aqueous vapor from entering boring and inside concrete, prevents that reinforcing bar and crab-bolt are corroded.
That is: a kind of crab-bolt, it is characterized in that it comprises anchor pole, conical head and expansion sleeve, described anchor pole outer surface is a thread, the lower end is provided with interior threaded hole, described expansion sleeve tube wall is provided with some roads longitudinal opening or/and circular groove, and described expansion sleeve can strut along the tapering of conical head under stressed effect, forms the structure of reaming type crab-bolt, the interior threaded hole of described anchor pole screws in conical head, props up expansion sleeve.
Described interior threaded hole edge is provided with chamfering, and the screw rod of internal thread segment also is a tapered rod.
Described interior threaded hole bottom hole wall has one and makes the interior outer hole of colloid extrusion cavities of filling.
A kind of crab-bolt, it is characterized in that it comprises anchor pole and conical head, described anchor pole end is provided with one section hollow hole, and the hollow hole front end is provided with groove, and the wall of described hollow hole is provided with some roads opening, the hollow hole inwall is provided with some road taper indentations, described conical head end is provided with small boss, and described groove is connected with small boss connecting anchor pole and conical head, described anchor pole under stressed effect hollow hole along the conical head spreading, behind the hollow hole wall spreading, form reaming type crab-bolt structure.
Described conical head outer surface is provided with the taper indentation of the taper indentation coupling that some roads and hollow hole inwall be provided with, and described hollow hole is along the conical head spreading, and two taper indentations interlock.
Described crab-bolt comprises two-part, and a part is the structure of reaming type crab-bolt, and another part is the chemical bonding screw rod.
Anchoring process with above-mentioned crab-bolt cooperates is characterized in that, the step of described anchoring process is as follows:
(1) putting crab-bolt place tool using in straight hole bottom reaming formation anchor hole, and the interior dust that portals clearly;
(2) the tool using crab-bolt that will mate bottom outlet is knocked in bottom outlet, and the hollow hole that makes expansion sleeve or anchor pole end forms and be similar to the structure that mould expands end crab-bolt along the conical head spreading, reserves the external thread rod of certain-length.
(3) in anchor hole, pour into the external thread rod that the chemical adhesive bonding is reserved, wait for that chemical adhesive solidifies, and can carry.
Described anchor pole lower end is provided with interior threaded hole, the hole that makes outside the interior filling colloid extrusion cavities that described interior threaded hole bottom hole wall has.
The invention has the beneficial effects as follows: the present invention has broken through traditional chemical bonding mode, and bodily form combination and two kinds of anchorage styles of chemical bonding are combined, and common carrying makes full use of concrete intensity, increases the Security of anchoring.Owing to the buffer action of chemical adhesive, reduced the difficulty of engineering maintenance cost and maintenance.This kind anchorage style does not have extruding force to concrete, when improving anchoring safety, adverse effect such as reduce stress relaxation that concrete compressive strain is produced, creep reduces concrete damage, and do not influence the fixing of other facilities of closing on, reduce the engineering difficulty.
Description of drawings
To the description of embodiments of the invention, can further understand purpose, specific structural features and the advantage of its invention by following in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is the perspective exploded view of crab-bolt of the present invention;
Fig. 2 is the schematic perspective view of crab-bolt of the present invention;
Fig. 3 is the use schematic representation of crab-bolt in the anchoring process of the present invention;
Fig. 4 is second embodiment's of a crab-bolt of the present invention perspective exploded view;
Fig. 5 is 30 schematic representation that are connected with 40 as shown in Figure 4
Second embodiment's of Fig. 6 crab-bolt of the present invention overall schematic;
Fig. 7 is the schematic cross-section after crab-bolt second embodiment of the present invention expands;
Fig. 8 is the use schematic representation of crab-bolt in the crab-bolt second embodiment's of the present invention anchoring process;
Embodiment
The present invention uses a kind of anchoring process in concrete of construction aspect and the crab-bolt that matches, and is the significant improvement of making on the basis to the shortcoming of existing traditional bonding mode and crab-bolt, has very important practice significance.
Anchoring process of the present invention is to put the crab-bolt place in preparation to bore a straight hole, re-uses mould bottom expanding drill this hole of cleaning after straight hole bottom reaming.Conical head and sleeve that tool using will mate bottom outlet are knocked in bottom outlet, and make sleeve along the conical head spreading, form to be similar to mould and to expand end crab-bolt effect, reserve one section screw rod; Continue in the hole, pour into chemical adhesive after, insert the anchor pole part of crab-bolt; The interior threaded hole of anchoring end is connected with the screw rod of reservation, waits for that colloid solidifies, and can carry.
Following will being described in detail with the anchoring process of two kinds of recommendation mode of executions to crab-bolt of the present invention and this crab-bolt of use.
As Figure 1-3, crab-bolt of the present invention comprises anchor pole 1, conical head 2 and the expansion sleeve 3 that is arranged in the anchor hole.Anchor pole 1 outer surface is a thread, and the lower end is provided with interior threaded hole 4, and interior threaded hole 4 edges are provided with chamfering, and the screw rod of internal thread segment also is a tapered rod, the thickness of assurance internal thread hole wall is not drawn bad when stressed, and interior threaded hole bottom hole wall has a hole 5, fills in making outside the colloid extrusion cavities; Symmetry has some roads longitudinal opening with circular groove on expansion sleeve 3 tube walls, under stressed effect, struts along the tapering of conical head 2, forms the form of reaming type crab-bolt, and exposes the external thread rod 6 of certain-length; The interior threaded hole 4 of anchor pole 1 is screwed in the external thread rod 6 that conical head 2 exposes, prop up expansion sleeve 3, prevent expansion sleeve 3 bounce-backs.The screw rod that in anchor hole, pours into the reservation of chemical adhesive bonding that continues, and, fill outside the colloid extrusion cavities in making by the hole 5 that interior threaded hole bottom hole wall has; The wait colloid solidifies, and can carry.
Be that crab-bolt among the present invention is divided into two-part, a part is the reaming expansion-head, and another part is the chemical bonding screw rod, and there is the hole of one section internal thread the screw rod end, and the bore edges chamfering conveniently is connected with screw rod.
During specific operation, the step of anchoring process is as follows:
(1) putting crab-bolt place use mould bottom expanding drill in straight hole bottom reaming
(2) the interior dust that portals clearly
(3) the tool using conical head 2 and the expansion sleeve 3 that will mate bottom outlet knocked in bottom outlet, and makes expansion sleeve 3 along conical head 2 spreadings, forms to be similar to mould and to expand end crab-bolt effect, reserves the external thread rod 6 of certain-length.
(4) in the hole, pour into the chemical adhesive bonding and reserve screw rod, and, fill outside the colloid extrusion cavities in making by the hole 5 that interior threaded hole bottom hole wall has; The wait colloid solidifies, and can carry.
Shown in Fig. 4-8, the crab-bolt of second embodiment of the invention comprises anchor pole 10 and the conical head 20 that is arranged in the anchor hole, described anchor pole 10 ends are provided with one section hollow hole 50, hollow hole 50 front ends are provided with groove 40, the wall of described hollow hole 50 is provided with some roads opening, hollow hole 50 inwalls are provided with some road taper indentations, described conical head end is provided with small boss 30, described groove 40 is connected with small boss 30 to connect anchor pole 10 and conical head 20, described anchor pole 10 under stressed effect hollow hole 50 along conical head 20 spreadings, behind the hollow hole wall spreading, form reaming type crab-bolt structure.Promptly cooperate together by knocking small boss 30 that conical head 20 ends make the other end of conical head and the groove 40 in anchor pole 10 holes, the wall symmetry of hollow hole 50 has some roads opening, the hollow hole inwall is provided with some road taper indentations, and conical head 20 outer surfaces are provided with some road taper indentations and mate with hollow hole 50 inwall taper indentations.Crab-bolt is inserted in the anchor hole, knocked anchor pole 10, hollow hole is along conical head 20 spreadings, and the taper indentation interlocks, and with anchor hole bottom outlet coupling, forms reaming type crab-bolt effect behind the hollow hole wall spreading.The concrete mode of operation of its remainder is identical or similar with embodiment 1, repeats no more herein.
In a word, the present invention can be designed to two kinds or multiple mode with the crab-bolt of anchor hole coupling, but two or more mode principles are identical, even the mechanism of crab-bolt is incomplete same.Crab-bolt spreading part should with the size coupling of mould bottom expanding drill institute reaming.Formation is similar to mould and expands the screw rod that pours into the reservation of chemical adhesive bonding in anchor hole that continues after the end crab-bolt effect, waits for that chemical adhesive or perhaps colloid solidify, and can carry, and realizes purpose of the present invention and effect.
The description of above preferred embodiment makes those skilled in the art can make or use the present invention.These embodiments' various modifications are conspicuous for a person skilled in the art, and Ding Yi General Principle can be applied to not deviating among other embodiment the spirit or scope of the present invention here.Therefore, the embodiment that the present invention is not limited to illustrate here, and will meet and the principle and the novel feature the most wide in range consistent scope that disclose here.
Claims (8)
1. crab-bolt, it is characterized in that it comprises anchor pole, conical head and expansion sleeve, described anchor pole outer surface is a thread, the lower end is provided with interior threaded hole, described expansion sleeve tube wall is provided with some roads longitudinal opening or/and circular groove, and described expansion sleeve can strut along the tapering of conical head under stressed effect, forms the structure of reaming type crab-bolt, the interior threaded hole of described anchor pole screws in conical head, props up expansion sleeve.
2. crab-bolt as claimed in claim 1 is characterized in that, described interior threaded hole edge is provided with chamfering, and the screw rod of internal thread segment also is a tapered rod.
3. crab-bolt as claimed in claim 1 is characterized in that, described interior threaded hole bottom hole wall has one and makes the interior outer hole of colloid extrusion cavities of filling.
4. crab-bolt, it is characterized in that it comprises anchor pole and conical head, described anchor pole end is provided with one section hollow hole, and the hollow hole front end is provided with groove, and the wall of described hollow hole is provided with some roads opening, the hollow hole inwall is provided with some road taper indentations, described conical head end is provided with small boss, and described groove is connected with small boss connecting anchor pole and conical head, described anchor pole under stressed effect hollow hole along the conical head spreading, behind the hollow hole wall spreading, form reaming type crab-bolt structure.
5. crab-bolt as claimed in claim 4 is characterized in that, described conical head outer surface is provided with the taper indentation of the taper indentation coupling that some roads and hollow hole inwall be provided with, and described hollow hole is along the conical head spreading, and two taper indentations interlock.
6. as the described crab-bolt in one of claim 1 or 4, it is characterized in that described crab-bolt comprises two-part, a part is the structure of reaming type crab-bolt, and another part is the chemical bonding screw rod.
7. the anchoring process that cooperates as the described and above-mentioned crab-bolt in one of claim 1 or 4 is characterized in that the step of described anchoring process is as follows:
(1) putting crab-bolt place tool using in straight hole bottom reaming formation anchor hole, and the interior dust that portals clearly;
(2) the tool using crab-bolt that will mate bottom outlet is knocked in bottom outlet, and the hollow hole that makes expansion sleeve or anchor pole end forms and be similar to the structure that mould expands end crab-bolt along the conical head spreading, reserves the external thread rod of certain-length.
(3) in anchor hole, pour into the external thread rod that the chemical adhesive bonding is reserved, wait for that chemical adhesive solidifies, and can carry.
8. anchoring process as claimed in claim 7 is characterized in that, described anchor pole lower end is provided with interior threaded hole, the hole that makes outside the interior filling colloid extrusion cavities that described interior threaded hole bottom hole wall has.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010584334 CN102192224A (en) | 2010-12-10 | 2010-12-10 | Anchor bolt and anchoring method matched with anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010584334 CN102192224A (en) | 2010-12-10 | 2010-12-10 | Anchor bolt and anchoring method matched with anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102192224A true CN102192224A (en) | 2011-09-21 |
Family
ID=44600904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010584334 Pending CN102192224A (en) | 2010-12-10 | 2010-12-10 | Anchor bolt and anchoring method matched with anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102192224A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869394A (en) * | 2019-04-10 | 2019-06-11 | 罗定市麟千五金科技有限公司 | Setscrew |
| CN109989974A (en) * | 2017-12-29 | 2019-07-09 | 喜利得股份公司 | Fastener |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103419A (en) * | 1987-06-13 | 1988-12-28 | 阿图尔-费希尔股份公司费希尔厂 | Be used for EXPANSION ANCHOR BOLTS in the boring grappling of end expansion |
| CN2051307U (en) * | 1989-05-17 | 1990-01-17 | 王尔年 | Rapid expansion bolt |
| CN2221677Y (en) * | 1995-03-25 | 1996-03-06 | 邢连业 | Hammer expansion bolt |
| CN2559822Y (en) * | 2002-08-13 | 2003-07-09 | 何国绪 | Inverted-cone expansion screw |
| EP1903220A2 (en) * | 2006-09-21 | 2008-03-26 | HILTI Aktiengesellschaft | Expansion anchor |
| CN202187988U (en) * | 2010-12-10 | 2012-04-11 | 上海康驰建筑技术有限公司 | Anchor bolt |
| CN202187989U (en) * | 2010-12-10 | 2012-04-11 | 上海康驰建筑技术有限公司 | Anchor bolt |
-
2010
- 2010-12-10 CN CN 201010584334 patent/CN102192224A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103419A (en) * | 1987-06-13 | 1988-12-28 | 阿图尔-费希尔股份公司费希尔厂 | Be used for EXPANSION ANCHOR BOLTS in the boring grappling of end expansion |
| CN2051307U (en) * | 1989-05-17 | 1990-01-17 | 王尔年 | Rapid expansion bolt |
| CN2221677Y (en) * | 1995-03-25 | 1996-03-06 | 邢连业 | Hammer expansion bolt |
| CN2559822Y (en) * | 2002-08-13 | 2003-07-09 | 何国绪 | Inverted-cone expansion screw |
| EP1903220A2 (en) * | 2006-09-21 | 2008-03-26 | HILTI Aktiengesellschaft | Expansion anchor |
| CN202187988U (en) * | 2010-12-10 | 2012-04-11 | 上海康驰建筑技术有限公司 | Anchor bolt |
| CN202187989U (en) * | 2010-12-10 | 2012-04-11 | 上海康驰建筑技术有限公司 | Anchor bolt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989974A (en) * | 2017-12-29 | 2019-07-09 | 喜利得股份公司 | Fastener |
| US11859647B2 (en) | 2017-12-29 | 2024-01-02 | Hilti Aktiengesellschaft | Fastener |
| CN109869394A (en) * | 2019-04-10 | 2019-06-11 | 罗定市麟千五金科技有限公司 | Setscrew |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4146878B2 (en) | Process for anchor installation and anchors available in this process | |
| CN109236337B (en) | Arrow anchor rod anchored by multi-section type clamping grouting and using method thereof | |
| CN104514572A (en) | Rod body connecting device, anchor rod and manufacturing method thereof | |
| CN103758550B (en) | A kind of liquid expanding allows presses the anti-High-geotemperature anchor pole of antidetonation | |
| CN108560716A (en) | A kind of concrete filled steel tube node of column and beam structure and its construction method | |
| CN202187988U (en) | Anchor bolt | |
| CN104405424A (en) | Full-length-anchoring anchor rod and anchoring method | |
| CN108221666A (en) | A kind of compound anchorage of FRP tendons | |
| CN202187989U (en) | Anchor bolt | |
| JP5671096B2 (en) | Junction structure | |
| KR101600679B1 (en) | Socket shaped anchor | |
| JP5816514B2 (en) | Outframe reinforcement method and its reinforcement structure | |
| CN102192224A (en) | Anchor bolt and anchoring method matched with anchor bolt | |
| CN105201147A (en) | Full-grouting sleeve adopting eccentric connection of reinforcing steel bars and usage method of sleeve | |
| CN102409809B (en) | Concrete-filled steel tube column provided with soft steel bushing and embedded with high-tenacity material and manufacturing method thereof | |
| JP2021017738A (en) | Reinforcement structure and reinforcement method of masonry construction structure | |
| CN206090921U (en) | Structure and prefabricated wall body are assembled to prefabricated wall body | |
| CN111379581A (en) | Deep roadway prestress full-anchor support construction equipment and construction method thereof | |
| CN113931670B (en) | Combined grouting prestress large-deformation anchor rod and construction method thereof | |
| CN212428897U (en) | Segmented recyclable high-strength prestressed anchor cable | |
| JP4815134B2 (en) | Anchor method | |
| CN210737535U (en) | Support anchor rope and supporting construction | |
| CN203655326U (en) | Liquid-expansion yielding shock and high ground temperature resistant anchor rod | |
| CN205444570U (en) | Wallboard connected node | |
| CN109736304B (en) | Glass fiber composite anchor cable bar, glass fiber composite anchor cable and construction method of anchor rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |