CN104452596A - Arc-shaped flat anchorage device for bridge - Google Patents
Arc-shaped flat anchorage device for bridge Download PDFInfo
- Publication number
- CN104452596A CN104452596A CN201410674809.2A CN201410674809A CN104452596A CN 104452596 A CN104452596 A CN 104452596A CN 201410674809 A CN201410674809 A CN 201410674809A CN 104452596 A CN104452596 A CN 104452596A
- Authority
- CN
- China
- Prior art keywords
- arc
- flat
- flat anchor
- anchor
- plate
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an arc-shaped flat anchorage device for a bridge. The anchorage device comprises an arc-shaped flat anchorage plate, an arc-shaped flat anchorage cushion plate, an arc-shaped flat anchorage corrugated pipe and a grouting pipe. The inner arc face of the arc-shaped flat anchorage plate is matched with the end face of the arc-shaped flat anchorage cushion plate, and a clamping piece and a conical hole of the arc-shaped flat anchorage plate are matched and are fixedly locked through an arc-shaped flat anchorage spiral rib as a whole. The device solves the problem that included angles are generated on a steel strand at the flat anchorage clamping piece clamping position of a traditional flat anchorage product in the tensioning process and caused relative problems, and is suitable for high-strength low-relaxation-prestress steel strands with the diameter of 15.2 mm; the working face is changed into an arc face from a plane of a traditional flat anchorage device, so that the corner folding problem of the steel strand is effectively solved, and the anchorage performance of the flat anchorage device is greatly improved.
Description
Technical field
The present invention relates to building prestressed anchor technical field, belong to the flat ground tackle of a kind of bridge arc.
Background technology
Tradition flat ground tackle is a kind of prestressed anchor type that when vertical direction spatial is less in prestressed structural systems, (as bridge deck stretch-draw, hogging moment stretch-draw) adopts.Use traditional flat ground tackle of 15.2mm high strength, low relaxed prestress steel strand when stretch-draw, steel strand can produce certain angle at flat anchoring clamping piece retaining part, cause both sides intermediate plate and middle intermediate plate unbalance stress, the frictional resistance that each intermediate plate is subject to is different, intermediate plate is made to produce dislocation, when steel strand produce in stretching process knuckle loss of prestress excessive time, the phenomenon that causes steel strand disrumpent feelings occurs.
Summary of the invention
The object of this invention is to provide the flat ground tackle of a kind of arc for building, solve traditional flat anchor product steel strand in stretching process and can produce angle at flat anchoring clamping piece retaining part, and the relevant issues caused, be applicable to 15.2mm high strength, low relaxed prestress steel strand, by changing work plane into cambered surface by the plane of traditional flat ground tackle, efficiently solve steel strand knuckle problem, flat ground tackle anchoring property improves greatly.
The present invention is achieved through the following technical solutions:
The flat ground tackle of a kind of bridge arc, include the flat anchor slab of arc, the flat anchor plate of arc, the flat anchor bellows of arc, Grouting Pipe, it is characterized in that: described arc flat anchor slab intrados coordinates with the flat anchor plate curved end of arc, intermediate plate coordinates with the flat anchor slab taper hole of arc, and it is overall by arc flat anchor spiral bar fixing and locking, the passage that described prestress wire is formed through the flat anchor bellows of arc and arc anchor plate, and by intermediate plate anchoring, the flat anchor plate of described arc, the flat anchor confinement ring of arc, the flat anchor bellows of arc, the flat anchor spiral bar of arc is embedded in concrete component before stretch-draw.
The flat anchor slab work plane of described arc is cambered surface, and arc radius is 300mm, and taper hole angle is 7 °, and large port footpath is 27.8mm.
Described arc flat anchor plate curved end arc radius is 300mm, and end face has two locating holes, and there is the injected hole of G1/2 side, coordinates with Grouting Pipe.
The flat anchor bellows of described arc adopts material to be high-density polyethylene resin or polypropylene.
Described Grouting Pipe adopts four to be in charge of and makes, and there is G1/2 external screw thread at two ends, coordinate with anchor plate.
Advantage of the present invention is: reasonable in design, easy to use, utilizes curved working face to replace conventional planar work plane, the angle that effective elimination steel strand can produce at flat anchoring clamping piece retaining part, improve anchoring efficiency, reduce intermediate plate loss late, ensure construction safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the sectional view of the flat anchor of arc.
detailed description of the invention:
See accompanying drawing, the flat ground tackle of a kind of bridge arc, include the flat anchor slab 1 of arc, the flat anchor plate 3 of arc, the flat anchor bellows 6 of arc, Grouting Pipe 5, arc flat anchor slab 1 intrados coordinates with arc flat anchor plate 3 curved end, intermediate plate 2 coordinates with arc flat anchor slab 1 taper hole 9, and it is overall by arc flat anchor spiral bar 4 fixing and locking, the passage that prestress wire 8 is formed with arc anchor plate 3 through the flat anchor bellows 6 of arc, and by intermediate plate 2 anchoring, the flat anchor plate 3 of arc, the flat anchor confinement ring of arc, the flat anchor bellows 6 of arc, the flat anchor spiral bar 4 of arc is embedded in concrete component before stretch-draw.
The flat anchor slab work plane of described arc is cambered surface, and arc radius is 300mm, and taper hole angle is 7 °, and large port footpath is 27.8mm.Arc flat anchor plate curved end arc radius is 300mm, and end face has two locating holes, and there is the injected hole of G1/2 side, coordinates with Grouting Pipe.The flat anchor bellows of arc adopts material to be high-density polyethylene resin or polypropylene.Grouting Pipe adopts four to be in charge of and makes, and there is G1/2 external screw thread at two ends, coordinate with anchor plate.
Claims (5)
1. the flat ground tackle of bridge arc, include the flat anchor slab of arc, the flat anchor plate of arc, the flat anchor bellows of arc, Grouting Pipe, it is characterized in that: described arc flat anchor slab intrados coordinates with the flat anchor plate curved end of arc, intermediate plate coordinates with the flat anchor slab taper hole of arc, and it is overall by arc flat anchor spiral bar fixing and locking, the passage that described prestress wire is formed through the flat anchor bellows of arc and arc anchor plate, and by intermediate plate anchoring, the flat anchor plate of described arc, the flat anchor confinement ring of arc, the flat anchor bellows of arc, the flat anchor spiral bar of arc is embedded in concrete component before stretch-draw.
2. the flat ground tackle of bridge arc according to claim 1, is characterized in that, the flat anchor slab work plane of described arc is cambered surface, and arc radius is 300mm, and taper hole angle is 7 °, and large port footpath is 27.8mm.
3. the flat ground tackle of bridge arc according to claim 1, is characterized in that, described arc flat anchor plate curved end arc radius is 300mm, and end face has two locating holes, and there is the injected hole of G1/2 side, coordinates with Grouting Pipe.
4. the flat ground tackle of bridge arc according to claim 1, is characterized in that, the flat anchor bellows of described arc adopts material to be high-density polyethylene resin or polypropylene.
5. the flat ground tackle of bridge arc according to claim 1, is characterized in that, described Grouting Pipe adopts four to be in charge of and makes, and there is G1/2 external screw thread at two ends, coordinate with anchor plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674809.2A CN104452596A (en) | 2014-11-22 | 2014-11-22 | Arc-shaped flat anchorage device for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674809.2A CN104452596A (en) | 2014-11-22 | 2014-11-22 | Arc-shaped flat anchorage device for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104452596A true CN104452596A (en) | 2015-03-25 |
Family
ID=52899297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410674809.2A Pending CN104452596A (en) | 2014-11-22 | 2014-11-22 | Arc-shaped flat anchorage device for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104452596A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245850A (en) * | 2016-09-21 | 2016-12-21 | 中南大学 | A kind of closed automatic anchorage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1082178A (en) * | 1996-09-09 | 1998-03-31 | Tokyo Seiko Co Ltd | Cable end fixing method and cable end fixing structure |
| CN2549256Y (en) * | 2002-07-05 | 2003-05-07 | 耿书岭 | Tension-terminal anchor with radial prestressed ribs |
| JP2008231700A (en) * | 2007-03-16 | 2008-10-02 | Anderson Technology Kk | Flat anchorage device for post-tensioned type prestressed concrete floor slab, post-tensioned type prestressed concrete floor slab using the anchorage device, and construction method for the post-tensioned type prestressed concrete floor slab |
| CN202416878U (en) * | 2011-07-05 | 2012-09-05 | 成都川锚路桥机械有限公司 | Flat anchor tensioning end anchorage device with steel strand prestressed structure |
| CN202611108U (en) * | 2012-06-12 | 2012-12-19 | 天津圣文预应力机械有限公司 | Sector-shaped prestress flat anchor |
| CN204370311U (en) * | 2014-11-22 | 2015-06-03 | 安徽金星预应力工程技术有限公司 | The flat ground tackle of a kind of bridge arc |
-
2014
- 2014-11-22 CN CN201410674809.2A patent/CN104452596A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1082178A (en) * | 1996-09-09 | 1998-03-31 | Tokyo Seiko Co Ltd | Cable end fixing method and cable end fixing structure |
| CN2549256Y (en) * | 2002-07-05 | 2003-05-07 | 耿书岭 | Tension-terminal anchor with radial prestressed ribs |
| JP2008231700A (en) * | 2007-03-16 | 2008-10-02 | Anderson Technology Kk | Flat anchorage device for post-tensioned type prestressed concrete floor slab, post-tensioned type prestressed concrete floor slab using the anchorage device, and construction method for the post-tensioned type prestressed concrete floor slab |
| CN202416878U (en) * | 2011-07-05 | 2012-09-05 | 成都川锚路桥机械有限公司 | Flat anchor tensioning end anchorage device with steel strand prestressed structure |
| CN202611108U (en) * | 2012-06-12 | 2012-12-19 | 天津圣文预应力机械有限公司 | Sector-shaped prestress flat anchor |
| CN204370311U (en) * | 2014-11-22 | 2015-06-03 | 安徽金星预应力工程技术有限公司 | The flat ground tackle of a kind of bridge arc |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245850A (en) * | 2016-09-21 | 2016-12-21 | 中南大学 | A kind of closed automatic anchorage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |