CN200949209Y - Prestressed expansion joint device - Google Patents
Prestressed expansion joint device Download PDFInfo
- Publication number
- CN200949209Y CN200949209Y CN 200620077876 CN200620077876U CN200949209Y CN 200949209 Y CN200949209 Y CN 200949209Y CN 200620077876 CN200620077876 CN 200620077876 CN 200620077876 U CN200620077876 U CN 200620077876U CN 200949209 Y CN200949209 Y CN 200949209Y
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- CN
- China
- Prior art keywords
- anchor
- anchor body
- hole
- side bar
- prestressing force
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- 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 - Fee Related
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Abstract
The utility model relates to a prestress expansion joint device, which belongs to technical field of transportation facility protection. The device is composed of a pair of edge beams and a set of anchor fastener. The edge beams are arranged on both sides of reserved opening of an expansion joint and provided with anchor holes. The anchor fastener is used in fixing the pair of edge beams on both sides of reserved opening of the expansion joint. The upper ends of the anchor holes are expanded, and the lower ends of the anchor hole are narrowed. The hole wall of the narrowed end is provided with a screw thread, and a screw thread protection cover is arranged in the anchor holes. The utility model has the advantages of that the edge beam can be easily removed from the opening of the expansion joint without damage; first and second anchors of the anchor fastener are connected firmly with the edge beams; first and second anchor pins help improving effect of bury; bolts of the first and the second anchors are standard fasteners which are easily processed and arranged as well as simply replaced; first and second sealing cushions prevent foreign substance from entering screw holes of the first and the second anchors; bolts of the first and the second anchors may slide off during use, but the total length of the bolts is 3.5cm to 4.5cm, and the utility model will pose no threat to the cars passing by.
Description
Technical field
The utility model relates to a kind of prestressing force expansion gap device, is used for the shrinkage joint of reserving on the traffic infrastructure such as road, railway, light rail is covered and protective action, belongs to means of transportation guard technology field.
Background technology
The prestressing force expansion gap device is by the side bar that is arranged at the both sides, shrinkage joint in parallel with each other and is used for the anchoring mechanism that side bar and back pouring concrete are fixed is constituted.For example Chinese patent CN1560370A discloses the anchoring mechanism that bridge expansion joint installation is used, and it comprises: an anchor rod be processed with screw thread in the lower end of anchor rod, and the upper end sets firmly the anchoring nut; One pretective sleeve pipe is set in the middle part of anchor rod; One pulling block nut, solid with the screw thread spiral shell of the lower end of anchor rod, the sidepiece of this pulling block nut expands to extension pull wing; One pad is placed on the anchor rod, between anchoring nut and pretective sleeve pipe.This structure has two places contributes, and the one, can make expansion gap device have good impact resistance and anti-vibration resistance; The 2nd, to road, railway, when bridge is rebuild, anchor rod can be withdrawed from, reuse in order to the side bar and the anchor rod of expansion gap device.But, this structure matches with side bar, in the use of reality, can expose following shortcoming: the one, before trimming, after anchor rod withdraws from, because side bar maintains adhesion relation more or less and between the pouring concrete layer of back, therefore the process that side bar is taken away from the shrinkage joint sealing extremely bothers, and careless slightly meeting undermines side bar, and influence reuses; The 2nd, exist and attend to one thing and lose sight of another, in order to make anchor rod embody the effect of thing to use to the greatest extent, be foregoing can reuse, and only guaranteed anchor rod can withdraw from smoothly, side bar is taken away, to pay reuse, otherwise side bar is scrapped comprehensively, therefore, with the material of the matched pull wing parts of the screw thread of anchor rod lower end must be heterogeneous with anchor rod, the phenomenon that just can prevent anchor rod and its corrosion and can't withdraw from takes place, so usually the material of pull wing is got for example brass of non-ferrous metal, uses the lower end of avoiding anchor rod and injures all for causing with the pull wing corrosion.Yet brass is fragile material, and intensity is lower, especially closes effect or claims the interchangeability shortcoming with other material is double, for example revolves with it when the lower end of anchor rod and joins when linking, and easily causes pull wing and ftractures, and loses anchorage effect; The 3rd, pretective sleeve pipe is difficult to play sealing function, adopts PVC to make pretective sleeve pipe, and (Instructions Page 3 the 3rd row) can penetrate in the pretective sleeve pipe when concrete grouting, and then condense with anchor rod, causes the anchor rod both can't pretension, can not change again; The 4th, because the ageing-resistant degree of PVC pretective sleeve pipe is low, thereby cause sealing, waterproof failure, to anchor rod forfeiture protection; The 5th, the complex structure of pull wing, processing inconvenience (can only be confined to casting); The 6th, anchor rod tediously long (12-15cm), if in use occur getting loose and the part body of rod withdraws from phenomenon, can bring hidden danger to road surface personnel especially vehicular traffic so, and for example fruit occurs a certain or some anchor rod moves back fully and takes off and desire when adding, then because hole depth reaches 12-15cm, the trifle in the world that deposits in the hole can't be removed, thereby remedial measure can't be carried out, moreover, the anchor rod of 12-15cm belongs to special component but not TMFC, commercially available channel can't acquisition, and the customization cost is higher.Hence one can see that, though above-mentioned patented technology scheme has the length of a profit that can make the anchor rod reuse, yet objectively with the weak point of many shortcoming.
Summary of the invention
Task of the present utility model is to provide a kind of before infrastructure is rebuild, can be easily with side bar from the shrinkage joint sealing get from and guarantee can not cause the prestressing force expansion gap device of damage in order to reuse.
An also task of the present utility model be to provide a kind of anchoring effect of anchoring mechanism desirable, simple in structure and easy to process, prestressing force expansion gap device that safety is good.
Task of the present utility model is finished like this; a kind of prestressing force expansion gap device; it comprise a pair of be used to be set to reserve in sealing both sides, shrinkage joint and be furnished with the side bar 1 of anchor hole 11 and be used for a pair of side bar 1 is fixed at least one group of anchoring mechanism 2 of sealing both sides, shrinkage joint; top, the hole expansion of described anchor hole 11 is established; contract and the bottom, hole is narrow; on the hole wall at the narrow position of contracting, be provided be used to make side bar 1 break away from the shrinkage joint sealing withdraw from thread 111, and in the hole, be provided be used to protect withdraw from thread 111 protect facing 1111.
An also task of the present utility model is finished like this, described anchoring mechanism 2 comprises first, second anchor body 21,22, first, second anchor body 21,22 respectively by first, second anchor body bolt 211,221 corresponding to anchor hole 11 places and side bar 1 anchoring, and the shape of the second anchor body 22 is L-shaped.
Anchor hole 11 described in the utility model is an inclined hole.
The first anchor body 21 described in the utility model is identical with the material of the first anchor body bolt 211, and the second anchor body 22 is identical with the material of the second anchor body bolt 221, and the material of first, second anchor body 21,22 is identical each other.
Constitute at least more than one first, second anchor tenon 212,222 on the wall body of first, second anchor body 21,22 described in the utility model respectively, and the upper end offers first, second anchor body bolt hole 214,224 respectively, first, second anchor body bolt hole 214,224 matches with first, second anchor body bolt 211,221 respectively, and is respectively arranged with first, second sealing mat 213,223 on the upper end end face of first, second anchor body 21,22.
First, second anchor tenon 212,222 described in the utility model respectively is any one in blind mortise and the tenon.
First, second anchor tenon 212,222 described in the utility model respectively is the alternate tenon of establishing with tenon of blind mortise.
The length of first, second anchor body bolt 211,221 described in the utility model is 3.5-4.5cm.
A side in opposite directions of a pair of side bar 1 described in the utility model offers abaculus groove 13 respectively, is linked with waterstop 3 on the abaculus groove 13.
It is trapezoidal that the cross sectional shape of a pair of side bar 1 described in the utility model is substantially, and the surface of each side bar 1 constitutes anti-skidding bead 12.
One of the utility model advantage compared with the prior art, owing on the narrow hole wall that contracts of anchor hole 11 bottoms institutes, set up and withdrawed from thread 111, so can ensure that side bar 1 unloads from the shrinkage joint sealing easily, and can not cause damage; Two, first, second anchor body 21,22 of anchoring mechanism 2 and side bar 1 anchor connection be reliable; Three, first, second anchor tenon 212,222 helps to improve and buries (anchor) solid effect; Four, as the standard fasteners of first, second anchor body bolt 211,221 for being easy to obtain of first, second anchor body 21,22, processing, install, change convenient; Five, first, second sealing mat 213,223 can prevent effectively that foreign matter from entering first, second anchor body bolt hole 214,224; Even six in use, part appears in first, second anchor body bolt 211,221 deviates from, because of its total length only is 3.5-4.5cm, so can not cause a hidden trouble to vehicular traffic.
Description of drawings
Fig. 1 is example structure figure of the present utility model.
Fig. 2 is the lateral view of Fig. 1.
Fig. 3 is for the schematic diagram of side bar 1 when the shrinkage joint sealing is recessed.
The specific embodiment
Ask for an interview Fig. 1 and in conjunction with Fig. 2, provided a pair of side bar 1, for side bar 1, preferred scheme is to adopt the aluminium extruded material, the cross sectional shape of side bar 1 is similar to T shape, the both sides toward each other of a pair of side bar 1 constitute abaculus groove 13 respectively, this abaculus groove 13 be used for compensating waterstop 3 both sides expand the shape of establishing such as button head abaculus 31 embedding or claim button to go into.Self-evident, the function of waterstop 3 is to prevent that rainwater is from shrinkage joint sealing 41 intrusions of reserving on basis 4.Preferably, on a pair of side bar 1, press, and anchor hole 11 is preferably the inclined hole with certain gradient according to the spacing distribution anchor hole 11 that needs.Constitute anti-skidding bead 12 on the surface of a pair of side bar 1, being coherent projection strip as the given anti-skidding bead 12 of embodiment among the figure, but being not so limited, for example can be that the miliaria that gathers is dashed forward, also can be that the disconnected bar that continues is prominent, can also be the prominent dual-purpose prominent with bar of miliaria.Therefore, all replacement means with equivalence constitute other various forms that mat plays anti-skidding effect on the surface of side bar 1, and all should be considered as is category disclosed in the utility model.When side bar 1 aluminium extruded was shaped, described anti-skidding bead 12, abaculus groove 13 and inclined end face 14 were shaped thereupon, processing when only anchor hole 11 can be processed before product goes out lotus or install at the scene.
The anchor hole of recommending as the utility model 11 is step-like hole shape structure; the top expansion is established; contract and the bottom is narrow, on the hole wall at the narrow position of contracting, be processed with and withdraw from thread 111, and in the hole, set up be used for protecting withdraw from thread 111 and material is preferably PVC protects facing 1111.Will be for the effect of withdrawing from thread 111 by more clear during to the description of Fig. 3 the applicant.Because the length of side bar 1 is unrestricted, therefore, the group number that is used for the anchoring mechanism 2 of anchoring side bar 1 should be to increase along with the lengthization of side bar 1, and vice versa.
Please continue to see Fig. 1 and in conjunction with Fig. 2, having provided each unit that acts on a pair of side bar 1 respectively is each one group of anchoring mechanism 2, each is organized anchoring mechanism 2 and comprises first, second anchor body 21,22, constitute a plurality of necks on the outer wall of first, second anchor body 21,22 respectively as first, second anchor tenon 212,222, this structure can with the basis between show the ultimate attainment effect that combines; Otherwise,, so obviously be equivalent if the recessed neck shown in the figure is become outstanding tenon.For the processing of first, second anchor body 21,22, both can be rolling, also can twist, therefore have workability, be beneficial to volume production.The first anchor tenon 21 is the vertical bar shape, and the second anchor body 222 is processed to bending, more particularly is processed to L shaped.Especially need to prove, respectively be three though provided the quantity of first, second anchor tenon 212,222 in Fig. 1, should not be subjected to concrete restriction, for example can be a pair of, also can be two pairs or the like.The degree of depth of first, second anchor body bolt hole 214,224 that the upper end processed of first, second anchor body 21,22 should be with first, second anchor body bolt 211,221 on first, second thread segment 2112,2212 be complementary, promptly the length of first, second thread segment 2112,2212 is compensated by first, second anchor body bolt hole 214,224.When length is that first, second anchor body bolt 211,221 sheathed respectively first, second packing rings 2111,2211 of 4cm are passing in regular turn and place protecting of anchor hole 11 to revolve behind first, second sealing mat 213,223 that facing 1111, material are rubber and to first, second anchor body bolt hole 214,224, just realized making side bar 1 and first, second anchor body 21,22 to be bound up.Because the effect of first, second sealing mat 213,223, can make first, second anchor body bolt hole 214,224 remain on desirable sealing state, when placing of concrete, slurry can't more reach in the hole, uses the operation of guaranteeing first, second anchor body bolt 211,221.For example in the time will carrying out the construction of reparation property to the basis, first, second anchor body bolt 211,221 can withdraw from smoothly, and then side bar 1 is taken away.Again, because anchor hole 11 is an angling hole, therefore after first, second anchor body bolt 211,221 spiral shells are fitted on first, second anchor body 21,22, first, second anchor body 21,22 just occurs with the attitude of diagonal brace, more particularly, on a pair of side bar 1, constitute and support, so have the good stable supporting role by splayed shown in Figure 2, binding ability, the anti-vibration adaptive capacity with the back pouring concrete that are shown can perform to ultimate attainment degree, so fool proof.
Ask for an interview Fig. 3, at the first anchor body bolt 211 from the first anchor body bolt hole 214 behind the removal, for side bar 1 is taken away from shrinkage joint sealing 41, and do not show and damage side bar 1, so as long as get earlier from protecting facing 1111, because protecting the material of facing 1111 is PVC, therefore also can take out, because when will with withdraw from thread 111 mutually spiral shell join withdraw from bolt 5 and screw in the time, can will protect facing 1111 squeezes broken, touch at the bottom face that withdraws from bolt 5 under the situation of upper end end face of the first anchor body 21, continue backspin and withdraw from bolt 5, so just can make the inclined-plane, the end 14 of side bar 1 loose from shrinkage joint sealing 41 under reaction force.The second anchor body bolt 221 from the second anchor body bolt hole 224 sequence of operations behind the removal with aforementioned.Thereby side bar 1 is got under nondestructive state from shrinkage joint sealing 41, be able to reuse after the repairerment construction for the treatment of basis 4 is finished.
The applicant sketches use of the present utility model, after water the servicing operations that requires through routine in the concrete of basis on 4 and after reaching intensity, act on turret head on first, second anchor body bolt 211,221 with torque spanner, make first, second crab- bolt 21,22 bear certain prestressing force, this prestressing force can make the concrete at side bar 1 and anchoring position be in pressured state all the time, prestressed definite value is generally suitable with maximum bearing load, the load of for example maximum permission vehicular traffic is 10 tons, and so prestressed definite value just is set in this value.Use through a period, basis 4 may be because of nature, artificial factor and damaging, when needing to repair, so as described above earlier with instrument with first, the second anchor body bolt 211,221 from first, second crab-bolt 21, withdraw from 22, by the applicant description that Fig. 3 did is got from side bar 1 again, after treating that repairerment finishes, again side bar 1 is installed to shrinkage joint sealing 41, then with first, the second anchor body bolt 211,221 are screwed into first, the second anchor body screw 214, in 224, and to first, the second anchor body bolt 211,221 reveal naked turret head afterbody with shutoff such as pitches.
Claims (10)
1, a kind of prestressing force expansion gap device; it comprise a pair of be used to be set to reserve in sealing both sides, shrinkage joint and be furnished with the side bar (1) of anchor hole (11) and be used for a pair of side bar (1) is fixed at least one group of anchoring mechanism (2) of sealing both sides, shrinkage joint; top, the hole expansion that it is characterized in that described anchor hole (11) is established; contract and the bottom, hole is narrow; on the hole wall at the narrow position of contracting, be provided be used to make side bar (1) break away from the shrinkage joint sealing withdraw from thread (111), and in the hole, be provided be used for that protection withdraws from thread (111) protect facing (1111).
2, prestressing force expansion gap device according to claim 1, it is characterized in that described anchoring mechanism (2) comprises first, second anchor body (21), (22), first, second anchor body (21), (22) are being located corresponding to anchor hole (11) and side bar (1) anchoring by first, second anchor body bolt (211), (221) respectively, and the shape of the second anchor body (22) is L-shaped.
3, prestressing force expansion gap device according to claim 1 and 2 is characterized in that described anchor hole (11) is an inclined hole.
4, prestressing force expansion gap device according to claim 2, it is characterized in that the described first anchor body (21) is identical with the material of the first anchor body bolt (211), the second anchor body (22) is identical with the material of the second anchor body bolt (221), and the material of first, second anchor body (21), (22) is identical each other.
5, according to claim 2 or 4 described prestressing force expansion gap devices, it is characterized in that described first, the second anchor body (21), (22) constitute at least more than one first on the wall body respectively, the second anchor tenon (212), (222), and the upper end offers first respectively, the second anchor body bolt hole (214), (224), first, the second anchor body bolt hole (214), (224) respectively with first, the second anchor body bolt (211), (221) match, and first, the second anchor body (21), (22) be respectively arranged with first on the upper end end face, second sealing mat (213), (223).
6, prestressing force expansion gap device according to claim 5 is characterized in that described first, second anchor tenon (212), (222) respectively are any one in blind mortise and the tenon.
7, prestressing force expansion gap device according to claim 5 is characterized in that described first, second anchor tenon (212), (222) respectively are the alternate tenon of establishing with tenon of blind mortise.
8, prestressing force expansion gap device according to claim 2 is characterized in that the length of described first, second anchor body bolt (211), (221) is 3.5-4.5cm.
9, prestressing force expansion gap device according to claim 1 is characterized in that a side in opposite directions of described a pair of side bar (1) offers abaculus groove (13) respectively, is linked with waterstop (3) on the abaculus groove (13).
10, according to claim 1 or 9 described prestressing force expansion gap devices, it is characterized in that the cross sectional shape of described a pair of side bar (1) is trapezoidal substantially, the surface of each side bar (1) constitutes anti-skidding bead (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077876 CN200949209Y (en) | 2006-09-25 | 2006-09-25 | Prestressed expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077876 CN200949209Y (en) | 2006-09-25 | 2006-09-25 | Prestressed expansion joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949209Y true CN200949209Y (en) | 2007-09-19 |
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ID=38891750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620077876 Expired - Fee Related CN200949209Y (en) | 2006-09-25 | 2006-09-25 | Prestressed expansion joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949209Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956367A (en) * | 2010-09-30 | 2011-01-26 | 成都市新筑路桥机械股份有限公司 | Drawing-out retractor device for beam end of railroad bridge |
| ES2598172A1 (en) * | 2016-05-24 | 2017-01-25 | José Mª FINA SEGURA | Sealing system for sealing of dilatation joints and placement method of the same (Machine-translation by Google Translate, not legally binding) |
| CN109763655A (en) * | 2019-01-23 | 2019-05-17 | 邢台职业技术学院 | A kind of Zona transformans and its construction method of automatic release concrete structure restraint stress |
| CN110714591A (en) * | 2019-09-18 | 2020-01-21 | 北京银泰建构预应力技术股份有限公司 | Armor seam device suitable for whole terrace of prestressing force |
-
2006
- 2006-09-25 CN CN 200620077876 patent/CN200949209Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956367A (en) * | 2010-09-30 | 2011-01-26 | 成都市新筑路桥机械股份有限公司 | Drawing-out retractor device for beam end of railroad bridge |
| ES2598172A1 (en) * | 2016-05-24 | 2017-01-25 | José Mª FINA SEGURA | Sealing system for sealing of dilatation joints and placement method of the same (Machine-translation by Google Translate, not legally binding) |
| WO2017203071A1 (en) * | 2016-05-24 | 2017-11-30 | Fina Segura José Ma | Sealing system for sealing expansion joints and method for placing the same |
| CN109763655A (en) * | 2019-01-23 | 2019-05-17 | 邢台职业技术学院 | A kind of Zona transformans and its construction method of automatic release concrete structure restraint stress |
| CN109763655B (en) * | 2019-01-23 | 2021-03-05 | 邢台职业技术学院 | Deformation belt capable of automatically releasing constraint stress of concrete structure and construction method thereof |
| CN110714591A (en) * | 2019-09-18 | 2020-01-21 | 北京银泰建构预应力技术股份有限公司 | Armor seam device suitable for whole terrace of prestressing force |
| CN110714591B (en) * | 2019-09-18 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Armor seam device suitable for whole terrace of prestressing force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |