CN106638307A - Deeply-buried anchorage device - Google Patents
Deeply-buried anchorage device Download PDFInfo
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- CN106638307A CN106638307A CN201510736068.0A CN201510736068A CN106638307A CN 106638307 A CN106638307 A CN 106638307A CN 201510736068 A CN201510736068 A CN 201510736068A CN 106638307 A CN106638307 A CN 106638307A
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- anchor
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- deeply
- anchor plate
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Abstract
The invention provides a deeply-buried anchorage device and relates to the deeply-buried anchorage device used for bridge prestressed concrete. The deeply-buried anchorage device mainly solves the problems that during large-scale prestressed bridge main tower construction, due to the fact that a prestress tension notch is opened too large, too many vertical main ribs of a tower column will be cut off, the stress performance of the structure is affected, concrete pouring is uneasy to operate, and the appearance quality and the corrosion prevention quality of the concrete of the tower column are difficult to guarantee. A horn-shaped opening into which a steel strand penetrates is formed in a round-tower-shaped anchor bearing plate, a spiral rib is installed on the outer circumference of the anchor bearing plate, a grouting hole is formed in the large- round end face of the anchor bearing plate, a deeply-buried steel sleeve is connected to the large round end face of the anchor bearing plate, a cylindrical anchor plate is installed on a spigot of the large round end face of the anchor bearing plate, and an anchor hole where the steel strand penetrates is formed in the anchor plate. By the adoption of the deeply-buried anchorage device, a concrete beam can be finished through one-time pouring, anchor head plugging and corrosion prevention only need to be slightly treated, the construction period is shortened, and prestressed construction is simple and reliable.
Description
Technical field
The present invention relates to a kind of anchorage for prestressed concrete, more particularly to a kind of to be used for the buried anchorage of bridge prestress concrete.
Background technology
In the design of prestressed concrete beam, frequently encounter bearing upper steel plate or leveling steel plate enters beam-ends sealing off and covering anchorage section, cause constructional difficulties, especially precast beam, if transporting with leveling steel plate, installing, it is easy to which collision causes deformation, affect quality, in addition after the completion of prestressed stretch-draw, then tens centimetres of sealing off and covering anchorage section is poured into a mould, not only trouble but also has been difficult to ensure that quality.In the construction of large-sized prestress bridge main tower, because prestressed stretch-draw notch opening it is excessive, the excessive vertical cage bar of king-post can be cut off, affect the stress performance of structure, corresponding shuttering supporting is needed during sealing off and covering anchorage casting concrete, the bad operation of concreting, the Surface Quality of Concrete and anti-corrosion for causing king-post is difficult to ensure that.
The content of the invention
The purpose of the present invention is that a kind of pre-stress construction proposed for above-mentioned deficiency is simple, reliable, short time limit, concreting is easily operated, beams of concrete can one-time-concreting complete, it is ensured that the Surface Quality of Concrete and corrosion-resistant prestressed concrete anchorage of king-post.
The present invention technical solution be：The horn mouth of steel strand wires is provided through inside the anchor plate of a circular tower shape, spiral bar is installed on the excircle of anchor plate, grout hole is provided with the major part nose circle face of anchor plate, buried steel bushing is connected with the end face of anchor plate, the anchor slab of one cylinder is installed on the large round end surface seam of anchor plate, anchor slab is provided with the anchor hole of steel strand.
Buried steel bushing described in the technical solution of the present invention is arranged on anchor plate by transition backing plate.
Transition backing plate described in the technical solution of the present invention is a plectane for being provided with mesopore, transition backing plate is fixed by screws on the installing hole in anchor plate nose circle face, transition backing plate is provided with the grout hole corresponding with grout hole on anchor plate, and buried steel bushing is screwed on transition backing plate by the disk on its end face.
Grout pipe is connected with the grout hole on anchor plate major part nose circle face described in the technical solution of the present invention.
The buried anchorage of the present invention solves conventional beams of concrete construction difficult problem caused by bearing upper steel plate or leveling steel plate enter beam-ends, beams of concrete one-time-concreting is completed, it is ensured that construction quality.The vertical main reinforcement of the excessive cut-out king-post of prestressed stretch-draw notch is avoided, structural behaviour and king-post outward appearance is affected.Present invention can also apply to have in the prestress engineering of analogue, after the completion of stretching construction, block anchor head and do anti-corrosion, only need to slightly process, simplified constructing operation in the past relatively, shorten the duration, make pre-stress construction simpler, reliable.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is pre-buried use state schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, 2, 3, buried anchorage of the invention includes anchor slab 1, anchor plate 2, transition backing plate 3, buried steel bushing 4, spiral bar 5, grout pipe 6；Anchor plate 2 is a circular tower shape; the horn mouth of steel strand wires 9 is provided through inside anchor plate 2; anchor plate 2 was fixed in bar-mat reinforcement or template before beam body casting concrete; spiral bar 5 is installed on the excircle of anchor plate 2; spiral bar 5 is with pole twist up shape; the outside of anchor plate 2 is enclosed within, is fixed on bar-mat reinforcement and is embedded in concrete, for protecting xoncrete structure not to be destroyed in stress；Built-in pipe 7 is provided with the little head end of anchor plate 2, on the major part nose circle face of anchor plate 2 grout hole 8 is provided with, be connected with buried steel bushing 4 on the nose circle face, the anchor plate 2 of buried steel bushing 4 and circular tower shape is on same axis；Buried steel bushing 4 is connected on anchor plate 2 by transition backing plate 3, buried steel bushing 4 can also be connected directly between on anchor plate 2, transition backing plate 3 is a plectane for being provided with mesopore, screwed hole 10 and grout hole are provided with transition backing plate 3, transition backing plate 3 is screwed on the installing hole in the nose circle face of anchor plate 2 by holding screw, and the grout hole on transition backing plate 3 is corresponding with the grout hole 8 on anchor plate 2；Transition backing plate 3 is embedded in concrete together with anchor plate 2 when using, for the connection of anchor plate 2 and buried steel bushing 4；Buried steel bushing 4 is a thin cylinder, one end is welded with plectane, plectane is provided with installing hole, the connection that buried steel bushing 4 passes through the installing hole screw and transition backing plate 3, buried steel bushing 4 is used to form stretching notch in grouting construction, and the plectane of the end of buried steel bushing 4 is provided with the hole corresponding with grout hole 8 on anchor plate 2, it is ensured that concede the position of grout hole 8, guarantee does not interfere prestressed applying, the axial length of buried steel bushing 4 to be required to determine according to design and construction；Grout pipe 6 is connected with grout hole 8, one end of grout pipe 6 is threadedly attached on the grout hole 8 of transition backing plate 3 or anchor plate 2, it is embedded in xoncrete structure together with anchor plate 2, transition backing plate 3, buried sleeve 4, spiral bar 5 in bridge construction, the other end of grout pipe 6 is stretched out outside xoncrete structure；Seam is provided with the large end face of anchor plate 2, anchor slab 1 is installed on the large end face seam of anchor plate 2, anchor slab 1 is a cylinder, and the anchor hole of steel strand 9 is provided with anchor slab 1, for the steel strand wires 9 that anchor is tightly passed through；The buried anchorage integral built-in of the present invention in xoncrete structure, stretch out outside xoncrete structure, as shown in Figure 3 by one end of grout pipe 6 when using.
Claims (4)
1. a kind of buried anchorage, is characterized in that：In the anchor plate of a circular tower shape（2）Inside is provided through steel strand wires（9）Horn mouth, in anchor plate（2）Excircle on spiral bar is installed（5）, in anchor plate（2）Major part nose circle face be provided with grout hole（8）, anchor plate（2）The end face on be connected with buried steel bushing（4）, in anchor plate（2）Large round end surface seam on the anchor slab of a cylinder is installed（1）, anchor slab（1）It is provided with steel strand（9）Anchor hole.
2. a kind of buried anchorage according to claim 1, is characterized in that：Described buried steel bushing（4）By transition backing plate（3）Installed in anchor plate（2）On.
3. a kind of buried anchorage according to claim 2, is characterized in that：Described transition backing plate（3）It is a plectane for being provided with mesopore, transition backing plate（3）It is fixed by screws in anchor plate（2）On the installing hole in nose circle face, transition backing plate（3）It is provided with and anchor plate（2）Upper grout hole（8）Corresponding grout hole, buried steel bushing（4）It is screwed in transition backing plate by the disk on its end face（3）On.
4. a kind of buried anchorage according to claim 1, is characterized in that：Described anchor plate（2）Grout hole on major part nose circle face（8）On be connected with grout pipe（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736068.0A CN106638307A (en) | 2015-11-04 | 2015-11-04 | Deeply-buried anchorage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736068.0A CN106638307A (en) | 2015-11-04 | 2015-11-04 | Deeply-buried anchorage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106638307A true CN106638307A (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510736068.0A Pending CN106638307A (en) | 2015-11-04 | 2015-11-04 | Deeply-buried anchorage device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106638307A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371964A (en) * | 2018-11-28 | 2019-02-22 | 柳州欧维姆机械股份有限公司 | It is a kind of suitable for buried deep embeded type anchorage component and its construction method of installation |
| CN110396927A (en) * | 2019-07-08 | 2019-11-01 | 中建三局第二建设工程有限责任公司 | For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method |
| CN113605239A (en) * | 2021-07-16 | 2021-11-05 | 柳州欧维姆机械股份有限公司 | Prestressed anchoring structure system for bridge pier assembly and bridge pier assembly construction method thereof |
| CN114922065A (en) * | 2022-05-31 | 2022-08-19 | 保利长大工程有限公司 | Installation process of anchorage device assembly for bridge |
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| US20040159058A1 (en) * | 2003-02-19 | 2004-08-19 | Jacques Gulbenkian | Unbonded post-tensioning system |
| WO2004094730A1 (en) * | 2003-03-24 | 2004-11-04 | Freyssinet | Construction cable |
| WO2012079625A1 (en) * | 2010-12-15 | 2012-06-21 | Bbr Vt International Ltd. | Device for anchoring a plurality of cable strands of a cable bundle |
| CN104911999A (en) * | 2015-05-15 | 2015-09-16 | 中国建筑第六工程局有限公司 | Construction method for deeply burying anchor |
| CN204826419U (en) * | 2015-08-05 | 2015-12-02 | 柳州市威尔姆预应力有限公司 | Bury ground tackle deeply |
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2015
- 2015-11-04 CN CN201510736068.0A patent/CN106638307A/en active Pending
Patent Citations (6)
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| US20040159058A1 (en) * | 2003-02-19 | 2004-08-19 | Jacques Gulbenkian | Unbonded post-tensioning system |
| WO2004094730A1 (en) * | 2003-03-24 | 2004-11-04 | Freyssinet | Construction cable |
| WO2012079625A1 (en) * | 2010-12-15 | 2012-06-21 | Bbr Vt International Ltd. | Device for anchoring a plurality of cable strands of a cable bundle |
| CN104911999A (en) * | 2015-05-15 | 2015-09-16 | 中国建筑第六工程局有限公司 | Construction method for deeply burying anchor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371964A (en) * | 2018-11-28 | 2019-02-22 | 柳州欧维姆机械股份有限公司 | It is a kind of suitable for buried deep embeded type anchorage component and its construction method of installation |
| CN110396927A (en) * | 2019-07-08 | 2019-11-01 | 中建三局第二建设工程有限责任公司 | For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method |
| CN113605239A (en) * | 2021-07-16 | 2021-11-05 | 柳州欧维姆机械股份有限公司 | Prestressed anchoring structure system for bridge pier assembly and bridge pier assembly construction method thereof |
| CN114922065A (en) * | 2022-05-31 | 2022-08-19 | 保利长大工程有限公司 | Installation process of anchorage device assembly for bridge |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |