CN110144820A - A kind of high strength steel strand prestressed anchor fixing structure - Google Patents
A kind of high strength steel strand prestressed anchor fixing structure Download PDFInfo
- Publication number
- CN110144820A CN110144820A CN201910361935.5A CN201910361935A CN110144820A CN 110144820 A CN110144820 A CN 110144820A CN 201910361935 A CN201910361935 A CN 201910361935A CN 110144820 A CN110144820 A CN 110144820A
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- Prior art keywords
- steel strand
- strength steel
- strength
- cylinder
- high strength
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
A kind of high strength steel strand prestressed anchor fixing structure provided by the invention, it include: high strength steel strand, high-strength anchor slab and high-strength anchor plate, high-strength anchor plate includes the cylinder of taper, described biggish one end of cylinder external diameter has the bearing plate along cylinder circumferentially, and the smaller one end of cylinder external diameter circumferentially has the first reinforcing ring rib along cylinder；Bearing plate side is equipped with high-strength anchor slab, and more intensity of installation reach the high strength steel strand of 2400MPa in high-strength anchor slab, and high strength steel strand one end is fixed on high-strength anchor slab, and the other end extends outwardly across cylinder；Multiple axial ribs is housed between bearing plate and the first reinforcing ring rib；Axial ribs is recessed inwardly to form arc or multi-sided groove；The fixing groove of taper is housed on high-strength anchor slab；The intermediate plate of taper is housed, intermediate plate is inserted into fixing groove, and high strength steel strand one end is fixed on high-strength anchor slab by intermediate plate on high strength steel strand.Its structural strength of the invention has reached the system standard of 2400MPa；Its whole structural strength is higher.
Description
Technical field
The present invention relates to high strength steel strand prestress anchoraging system regions, and in particular to a kind of high strength steel strand prestressed anchor
Fixing structure.
Background technique
Currently, with the continuous propulsion that domestic and abroad bridge is built, the requirement to bridge itself is higher and higher.Utmostly
Under the premise of meeting current require, the usage amount for reducing engineering material such as concrete, steel etc. is also needed, is made with reaching reduction engineering
The purpose of valence, reduction energy consumption.
Meanwhile by taking the country as an example, with the continuous progress of infrastructure, road is more and more intensive, the current demand of difference
Crossing elimination overlaps, such as across the elevated line etc. in the high-speed rail route of high speed and city.When route is overlapped,
Strict requirements are had also been proposed for bridge span, part overpass due to execution conditions limitation, what span must design
The larger current requirement to meet the vehicle under bridge, ship.
And at present in bridge, to reduce sectional dimension of members, increase the prestress system of bridge span as the main purpose
Through slowly it is impossible to meet engine requests.Steel strand wires are as presstressed reinforcing steel most common in prestress system, at home and abroad
Very extensive, the steel strand wires for the 1x7-15.20mm that regular size is 1860MPa grades of application.There are sectional dimension of members one for it
In the case where fixed, structural strength is lower, is unable to reach 2400MPa especially to meet bigger bridge span.
Such as application No. is the patent documents of CN201721193828.9, disclose a kind of prestress wire stretch-draw anchor
Structure；It includes limit plate, and limit plate is equipped with mount structure support plate, is provided with anchoring mechanism in mount structure support plate, described
Anchoring mechanism includes outer sliding body and Nei Ka case, and outer sliding body and Nei Ka case are slidably connected and lock；In the interior card case
Equipped with limited block, tension rod, the corresponding position that body is slided outside limited block and lower end is equipped with multiple mounting grooves, upper and lower installation
Multiple locking members are equipped in slot in the same direction, the locking member includes sleeve, taper hole is equipped in sleeve, taper hole inner circumferential is equipped with multiple cones
Clevis piece, multiple cone-shaped clips are close in formation through-hole, each cone-shaped clip upper end at the axis of taper and connect with spring, spring
It is connect with dismountable latch plate.That there are structural strengths is lower for it, can only achieve 1860MPa rank, be unable to reach 2400MPa with
Meet bigger bridge span.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of high strength steel strand prestressed anchor fixing structures, using high strength steel strand, outer diameter
Identical as the common specification of current engineering, intensity is improved by common 1860MPa to 2400MPa；High-strength anchor plate is using tool
By axial ribs and radial ribs forms and the structure of Grouting Pipe, has greatly reinforced the structural strength of high-strength anchor plate,
Reach the high strength steel strand of 2400MPa with collocation strength simultaneously, so that it is identical as existing system to control sectional dimension of members,
In the case where even reducing, structural strength has reached the system standard of 2400MPa；It solves to reduce member section ruler
The very little, prestress system of increase bridge span as the main purpose is unable to reach 2400MPa to meet lacking for bigger bridge span
It falls into.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of high strength steel strand prestressed anchor fixing structure, comprising: high-strength steel
Twisted wire, high-strength anchor slab and high-strength anchor plate, the high-strength anchor plate include the cylinder of taper, described biggish one end of cylinder external diameter
With the first reinforcing ring rib along cylinder circumferentially, described smaller one end of cylinder external diameter circumferentially has the first reinforcement along cylinder
Ring rib；The first reinforcing ring rib side is equipped with high-strength anchor slab, and more intensity of installation reach 2400MPa's in the high-strength anchor slab
High strength steel strand, the other end extend outwardly across cylinder；Equipped with multiple between the first reinforcing ring rib and the first reinforcing ring rib
Axial ribs；The axial direction ribs, which has, to be recessed inwardly to form arc or multi-sided groove；On the high-strength anchor slab
Fixing groove equipped with taper；The intermediate plate of taper is housed, the intermediate plate is inserted into fixing groove, high strength steel ream on the high strength steel strand
Line one end is fixed on high-strength anchor slab by intermediate plate.The present invention uses high strength steel strand, and outer diameter and current engineering are common
Specification it is identical, intensity is improved by common 1860MPa to 2400MPa；High-strength anchor plate use have axial ribs and
The structure of radial ribs composition and Grouting Pipe, has greatly reinforced the structural strength of high-strength anchor plate, while with collocation strength
Reach the high strength steel strand of 2400MPa, sectional dimension of members is identical as existing system or even the feelings of reduction so that controlling
Under condition, structural strength has reached the system standard of 2400MPa；In the case where overall weight is basically unchanged, whole knot
Structure intensity is higher.Meanwhile 2400MPa grades of high strength steel strand prestress anchorage system form of construction work of the present invention and existing anchoring system
It is identical.
Preferably, the junction of the axial ribs and bearing plate is additionally provided with reinforcement suspension column, described to reinforce cutting for suspension column
Face width is greater than the cross-sectional width of axial ribs.The present invention is further advanced by setting and reinforces the cross-sectional width of suspension column greater than axis
To the cross-sectional width of ribs, the structural strength between bearing plate and axial ribs is strengthened.It is whole strong to reinforce suspension column increase
It spends while avoiding anchor plate local failure.
Preferably, the junction of the bearing plate connector drum is additionally provided with annular flange, and the reinforcement suspension column is fixed on ring
On shape flange；Reinforcement suspension column is triangular prism cylinder.The junction of bearing plate connector drum of the invention is additionally provided with annular flange；Into
One step strengthens the maximum bearing plate structural strength of stress.
Preferably, the quantity of the axial ribs is six.The quantity of axial direction ribs of the present invention is six, conduct
The quantitative requirement of minimum axial ribs；And to be unable to satisfy 2400MPa grades of high strength steel strands pre- for less ribs its intensity
The requirement of stress anchoring system, more ribs increase whole weight.
Preferably, one of axial ribs side is equipped with Grouting Pipe, and diversion trench is equipped with inside the Grouting Pipe, described
Diversion trench penetrates through the cavity inside Grouting Pipe and connector drum；Described Grouting Pipe one end is fixed on the outside of the first reinforcing ring rib,
The other end is fixedly connected with cylinder.Structure as Grouting Pipe of the present invention influences whole size minimum.
Preferably, the cylinder is equipped with the second reinforcing ring rib along cylinder circumferentially far from one end of bearing plate.This hair
Bright the second reinforcing ring rib being equipped in one end far from bearing plate along cylinder circumferentially, before further enhancing high-strength anchor plate
Hold the structural strength of end.
Preferably, the outside taper of the high-strength anchor slab and the mutual differential seat angle of the outer side edges of intermediate plate are 5-35 points.
The fixing groove of taper is arranged in the present invention, convenient for fixed high strength steel strand.The present invention be arranged anchor slab outside taper and intermediate plate it is outer
The mutual differential seat angle in side is 5-35 points, and the present invention differential seat angle mutual by change anchor slab and intermediate plate improves
Efficiency of anchorage.
Preferably, the Grouting Pipe includes bottom side and the outside portion being fixed on the outside of bearing plate, described outside portion one end
Connect bottom side, other end connector drum；The diversion trench perforation bottom side and outside portion.The present invention includes solid using Grouting Pipe
The bottom side being scheduled on the outside of bearing plate and outside portion, described outside portion one end connect bottom side, other end connector drum；It is described to lead
Chute penetrates through bottom side and outside portion, so that the diversion trench of Grouting Pipe itself will not influence the structural strength of bearing plate.
Preferably, the internal layer edge of the bearing plate is recessed inwardly to form anchor slab mounting groove, in order to the loading of high-strength anchor slab.
Anchor slab mounting groove is arranged in the present invention, and convenient for fixed high-strength anchor slab, structure is simple, and structural strength is higher.
Preferably, the high strength steel strand prestressed anchor fixing structure further includes high-strength spiral bar, the high-strength spiral bar institute
For housing outside cylinder, bottom end resists Grouting Pipe.The present invention uses high-strength spiral bar, it is made to meet 2400MPa grades of high-strength steel
The requirement of twisted wire prestress anchorage system.
(3) beneficial effect
A kind of high strength steel strand prestressed anchor fixing structure provided by the invention, has the advantage that
1, the present invention uses high strength steel strand, and outer diameter is identical as the common specification of current engineering, and intensity is by common
1860MPa is improved to 2400MPa；High-strength anchor plate is used with axial ribs and radial ribs composition and Grouting Pipe
Structure has greatly reinforced the structural strength of high-strength anchor plate, while reaching the high strength steel strand of 2400MPa with collocation strength, makes
It is identical as existing system that sectional dimension of members must be controlled, or even in the case where reduction, structural strength reaches
The system standard of 2400MPa；, in the case where overall weight is basically unchanged, intensity is higher for it.Meanwhile it is 2400MPa grades of the present invention
High strength steel strand prestress anchorage system form of construction work is identical as existing anchoring system.
Detailed description of the invention
Fig. 1 is the perspective view of high strength steel strand prestress anchoraging constructive embodiment 1 of the invention；
Fig. 2 is the sectional view of high strength steel strand prestress anchoraging constructive embodiment 1 of the invention；
Fig. 3 is the part A partial enlarged view of Fig. 2 of high strength steel strand prestress anchoraging constructive embodiment 1 of the invention；
Fig. 4 is the C portion partial enlarged view of Fig. 1 of high strength steel strand prestress anchoraging constructive embodiment 1 of the invention；
Fig. 5 is the side view of high strength steel strand prestress anchoraging constructive embodiment 1 of the invention；
Fig. 6 is the B-B cross-sectional view of Fig. 5 of high strength steel strand prestress anchoraging constructive embodiment 1 of the invention.
1, cylinder, 2, bearing plate, the 3, first reinforcing ring rib, the 4, second reinforcing ring rib, 5, anchor slab mounting groove, 6, axial reinforcement
Rib, 7, groove, 8, Grouting Pipe, 9, bottom side, 10, outside portion, 11, reinforcement suspension column, 12, annular flange, 13, fixed flange, 14,
Diversion trench, 15, fixing groove, 16, intermediate plate, 100, high strength steel strand, 200, high-strength anchor slab, 300, high-strength spiral bar, 400, high-strength
Anchor plate.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " second " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is connected directly, it can also be indirectly connected through an intermediary.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention with concrete condition.
The structural strength of high-strength industry middle finger in high-strength anchor plate in the present invention is more than the system standard of 1860MPa
Components.
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of high strength steel strand prestressed anchor fixing structure provided by the invention,
It include: high strength steel strand 100, high-strength anchor slab 200, high-strength spiral bar 300 and high-strength anchor plate 400, the high-strength anchor plate packet
The cylinder 1 of taper is included, described biggish one end of cylinder external diameter has the bearing plate 2 along cylinder circumferentially, the cylinder external diameter
Smaller one end circumferentially has the first reinforcing ring rib 3 along cylinder.The cylinder is equipped with far from one end of bearing plate along cylinder circumferential direction
Second reinforcing ring rib 4 of arrangement.The internal layer edge of the bearing plate is recessed inwardly to form anchor slab mounting groove 5, in order to high-strength anchor
Plate is packed into.The fixing groove 15 of taper is housed on the high-strength anchor slab；The intermediate plate 16 of taper is housed on the high strength steel strand, it is described
Intermediate plate is inserted into fixing groove；The outside taper of high-strength anchor slab and the mutual differential seat angle of the outer side edges of intermediate plate are 5-35 points, this
The invention differential seat angle mutual by change anchor slab and intermediate plate, improves efficiency of anchorage.Here the wherein outside of anchor slab
Taper and the mutual differential seat angle of the outer side edges of intermediate plate are between the taper and Barrel alignment in outside of anchor slab shown in Fig. 3
Angle b and intermediate plate outer side edges and Barrel alignment between angle a declinate between the two.Bearing plate side is equipped with high-strength anchor
Plate, more intensity of the interior installation of the high-strength anchor slab reach the high strength steel strand of 2400MPa, and high strength steel strand one end is fixed on high-strength
On anchor slab, the other end extends outwardly across cylinder.
Axial ribs 6 between the bearing plate and the first reinforcing ring rib there are six dresses；The axial direction ribs is inside
The groove 7 of concave shape camber；It should be noted that groove of the invention may be that more sides constitute polygon face groove.Its
In an axial ribs side be equipped with Grouting Pipe 8, diversion trench 14 is equipped with inside the Grouting Pipe, the diversion trench penetrates through slip casting
Manage the cavity inside simultaneously connector drum.Described Grouting Pipe one end is fixed on the outside of bearing plate, and the other end is fixedly connected with cylinder.Institute
Stating Grouting Pipe includes bottom side 9 and the outside portion 10 being fixed on the outside of bearing plate, and described outside portion one end connects bottom side, another
Hold connector drum；The diversion trench perforation bottom side and outside portion.The high-strength spiral bar institute housing is outside cylinder, bottom end
Resist Grouting Pipe.
The junction of the axial direction ribs and bearing plate, which is additionally provided with, reinforces suspension column 11, the cross-sectional width for reinforcing suspension column
Greater than the cross-sectional width of axial ribs.The junction of the bearing plate connector drum is additionally provided with annular flange 12, the reinforcement
Suspension column is fixed in annular flange；Reinforcement suspension column is triangular prism cylinder.Wherein, the outer ledge of the second reinforcing ring rib is additionally provided with outer
Convex fixed flange 13.
During the embodiment of the present invention is implemented, when installation, high-strength anchor plate, spiral bar are embedded into according to design position first mixed
In solidifying soil, when concrete strength reaches design requirement, 2400MPa grades of high strength steel strands are penetrated in anchor plate, and are passed through mixed
The reserving hole channel of soil is coagulated, high-strength anchor slab, high-strength intermediate plate are installed in anchor plate bearing plate end later, carries out prestressed stretch-draw, it is complete
At the installation of 2400MPa grades of high strength steel strand anchoring systems.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type etc. are all can be
Variation, all equivalents and improvement carried out based on the technical solution of the present invention should not be excluded of the invention
Except protection scope.
Claims (9)
1. a kind of high strength steel strand prestressed anchor fixing structure characterized by comprising high strength steel strand, high-strength anchor slab and high-strength
Anchor plate, the high-strength anchor plate include the cylinder of taper, and described biggish one end of cylinder external diameter has along cylinder circumferentially
The first reinforcing ring rib, described smaller one end of cylinder external diameter circumferentially has the first reinforcing ring rib along cylinder；Described first reinforces
Ring rib side is equipped with high-strength anchor slab, and more intensity of installation reach the high strength steel strand of 2400MPa, the other end in the high-strength anchor slab
Extend outwardly across cylinder；Multiple axial ribs is housed between the first reinforcing ring rib and the first reinforcing ring rib；It is described
Axial ribs, which has, to be recessed inwardly to form arc or multi-sided groove；The fixing groove of taper is housed on the high-strength anchor slab；
The intermediate plate of taper is housed, the intermediate plate is inserted into fixing groove, and high strength steel strand one end is solid by intermediate plate on the high strength steel strand
It is scheduled on high-strength anchor slab.
2. high strength steel strand prestressed anchor fixing structure as described in claim 1, which is characterized in that the axial direction ribs and the
The junction of one reinforcing ring rib is additionally provided with reinforcement suspension column, and the section that the cross-sectional width for reinforcing suspension column is greater than axial ribs is wide
Degree.
3. high strength steel strand prestressed anchor fixing structure as described in claim 1, which is characterized in that the first reinforcing ring rib connects
The junction of connect cylinder body is additionally provided in annular flange, and the reinforcement suspension column is fixed on annular flange；Reinforcement suspension column is triangular prism
Body.
4. high strength steel strand prestressed anchor fixing structure as described in claim 1, which is characterized in that the number of the axial direction ribs
Amount is six.
5. high strength steel strand prestressed anchor fixing structure as described in claim 1, which is characterized in that one of axial direction ribs
Side is equipped with Grouting Pipe, diversion trench is equipped with inside the Grouting Pipe, the diversion trench perforation Grouting Pipe is simultaneously inside connector drum
Cavity；Described Grouting Pipe one end is fixed on the outside of the first reinforcing ring rib, and the other end is fixedly connected with cylinder.
6. the high strength steel strand prestressed anchor fixing structure as described in claims 1 or 2 or 3 or 4 or 5, which is characterized in that the cylinder
Body is equipped with the third reinforcing ring rib along cylinder circumferentially far from one end of the first reinforcing ring rib.
7. the high strength steel strand prestressed anchor fixing structure as described in claims 1 or 2 or 3 or 4 or 5, which is characterized in that the height
The outside taper of strong anchor slab and the mutual differential seat angle of the outer side edges of intermediate plate are 5-35 points.
8. the high strength steel strand prestressed anchor fixing structure as described in claims 1 or 2 or 3 or 4 or 5, which is characterized in that described
The internal layer edge of one reinforcing ring rib is recessed inwardly to form anchor slab mounting groove, in order to the loading of high-strength anchor slab.
9. the high strength steel strand prestressed anchor fixing structure as described in claims 1 or 2 or 3 or 4 or 5, which is characterized in that further include
High-strength spiral bar, the high-strength spiral bar institute housing is outside cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910361935.5A CN110144820A (en) | 2019-04-30 | 2019-04-30 | A kind of high strength steel strand prestressed anchor fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910361935.5A CN110144820A (en) | 2019-04-30 | 2019-04-30 | A kind of high strength steel strand prestressed anchor fixing structure |
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| Publication Number | Publication Date |
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| CN110144820A true CN110144820A (en) | 2019-08-20 |
Family
ID=67594839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910361935.5A Pending CN110144820A (en) | 2019-04-30 | 2019-04-30 | A kind of high strength steel strand prestressed anchor fixing structure |
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| CN (1) | CN110144820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116729555A (en) * | 2023-08-15 | 2023-09-12 | 中国石油大学(华东) | Resolidified suction anchor and use method thereof |
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