CN104863059A - Double-direction movable stay-cable anchoring device for saddle type cable tower zone of low tower cable-stayed bridge - Google Patents
Double-direction movable stay-cable anchoring device for saddle type cable tower zone of low tower cable-stayed bridge Download PDFInfo
- Publication number
- CN104863059A CN104863059A CN201510236663.8A CN201510236663A CN104863059A CN 104863059 A CN104863059 A CN 104863059A CN 201510236663 A CN201510236663 A CN 201510236663A CN 104863059 A CN104863059 A CN 104863059A
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- plate
- cable
- fusiformis
- cage plate
- tower
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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
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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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a double-direction movable stay-cable anchoring device for a saddle type cable tower zone of a low tower cable-stayed bridge. The double-direction movable stay-cable anchoring device comprises a bottom plate and a double-direction anchoring unit, wherein the double-direction anchoring unit comprises an upper sleeve plate, a lower sleeve plate and fusiform clamping pieces; the bottom plate is fixedly connected with a bridge tower, the upper sleeve plate and the lower sleeve plate are connected through compression bolts, and the double-direction anchoring unit is connected with the bottom plate through the compression bolts; sleeve holes allowing cables to penetrate through are formed in the bottom plate, the upper sleeve plate and the lower sleeve plate, and the fusiform clamping pieces are arranged between the sleeve hole of the upper sleeve plate and the sleeve hole of the lower sleeve plate. Through the adoption of the double-direction movable stay-cable anchoring device disclosed by the invention, the cable can be anchored in two directions and is movable, when moving in two directions, the cable can generate sliding resistance force through the cable force, and after the compression bolts are loosened, the anchoring system can be movable and demountable.
Description
Technical field
The invention belongs to the Sarasota anchoring field of low-pylon cable-stayed bridge, relate to a kind of low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device.
Background technology
Low-pylon cable-stayed bridge is stressed and contribution function is relatively little for structural entity relative to conventional cable-stayed bridge cable, and therefore the drag-line of bridge tower both sides can make continuous print, is directly anchored at respectively on girder through bridge tower two ends again.Then need anchoring in the coupling part of drag-line and bridge tower, to prevent generation activity between drag-line and bridge tower, thus make bridge tower participation structure stressed.When bridge tower two funiculus lateralis force unbalance, between drag-line and bridge tower, have the tendency of slip, and direction is two-way, reciprocal.
The anchor-hold mode of current routine has two kinds: intermediate plate anchor and epoxy mortar mooring anchor.If the former closes without mortar, be detachable, mobilizable, but can only anchoring direction time stressed; The latter utilizes the adhesion stress of mortar drag-line and anchor system to be consolidated, can anchoring both direction, but system be fix, non-removable.So current bidirectional anchoring and movablely can not to get both.
Summary of the invention
The object of the invention is to solve current bidirectional anchoring and the movable problem that can not get both, a kind of low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device is provided, this suspension cable anchor device makes bidirectional anchoring and movable, drag-line all produces from skid resistance by Suo Li when bi-directional movable, and after loosening pressurization bolt, anchor system can be changed into movable and detachable.
To achieve these goals, the present invention is achieved through the following technical solutions:
Low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device, comprises base plate and bidirectional anchoring unit, and bidirectional anchoring unit comprises cage plate, lower cage plate and fusiformis intermediate plate; Base plate is fixedly connected with bridge tower, and upper cage plate is connected by pressurization bolt with lower cage plate, and bidirectional anchoring unit is connected with base plate by pressurization bolt; Base plate, upper cage plate and lower cage plate all offer the trepanning passed for drag-line, fusiformis intermediate plate is arranged between the trepanning of cage plate and lower cage plate; The side of bridge tower, drag-line penetrates bridge tower through after upper cage plate, fusiformis intermediate plate, lower cage plate and base plate successively; At the opposite side of bridge tower, drag-line passes through after base plate, lower cage plate, fusiformis intermediate plate and upper cage plate successively.
The present invention further improves and is:
Fusiformis intermediate plate comprises connecting portion and is arranged at the symmetrical head of two of connecting portion two ends, and head is provided with domatic.
Domatic gradient or angle of slope are 7 °.
Trepanning is the domatic taper adapted with fusiformis intermediate plate.
Fusiformis intermediate plate is put together by multiple axial members, leaves gap between each axial members.
The width in gap is 20mm.
Base plate is fixed on bridge tower by set bolt or anchor bolt.
Compared with prior art, the present invention has following useful technique effect:
Low-pylon cable-stayed bridge cradle type Sarasota district provided by the invention two-way movable suspension cable anchor device, by the setting of base plate and bidirectional anchoring unit, achieve the bidirectional anchoring of drag-line and movable, drag-line all produces from skid resistance by Suo Li when bi-directional movable, and after loosening pressurization bolt, anchor system can be changed into movable and detachable.The present invention changes upper cage plate, lower cage plate to fusiformis intermediate plate applied pressure by the pressure changing the pressurization bolt between upper cage plate, lower cage plate.When drag-line has a tendency toward sliding, drag-line drives fusiformis intermediate plate upwards to move in cage plate or lower cage plate direction, and fusiformis intermediate plate can produce self-friction power with trepanning by radial retraction.
The present invention is by fusiformis intermediate plate and the pressurization of upper and lower cage plate, and form the bidirectional anchoring unit of drag-line, by pressurization bolt, bidirectional anchoring unit is connected with the base plate be fixed on bridge tower, whole anchoring system is fixed on bridge tower by base plate connecting bolt.Bidirectional anchoring power (on-slip power) applies mainly through fusiformis intermediate plate anchoring unit:
The on-slip power of drag-line is produced fusiformis intermediate plate applied pressure by the pressurization bolt of upper and lower cage plate on the one hand, two of further fusiformis intermediate plate all has domatic, a fusiformis intermediate plate is made up of multiple covering of the fan with gap, after upper and lower cage plate pressurization, tentatively can produce frictional force to drag-line and reach anti-slip effect;
On the other hand when drag-line has tendency toward sliding, drag-line drives fusiformis intermediate plate to move in cage plate direction up and down, and the trepanning on cage plate is also the domatic suitable taper with fusiformis intermediate plate, and therefore intermediate plate can radially bounce back, produce self-friction power, thus strengthen the anti-sliding function to drag-line.
The anchored force of low-pylon cable-stayed bridge cradle type Sarasota district provided by the invention two-way movable suspension cable anchor device is two-way, and after pressurization bolt pressure release, after upper and lower cage plate gets loose, fusiformis intermediate plate is again mobilizable, thus can dismantle and change suspension cable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that drag-line of the present invention is connected with bridge tower with bidirectional anchoring unit through base plate;
Fig. 2 is the connection diagram of base plate of the present invention and bidirectional anchoring unit;
Fig. 3 is the discrete schematic diagram of structure of base plate of the present invention and bidirectional anchoring unit;
Fig. 4 is the structural representation of fusiformis intermediate plate of the present invention;
Fig. 5 is the structural representation of cage plate and lower cage plate in the present invention.
Wherein, 1 is base plate; 2 is set bolt; 3 is upper cage plate; 4 is lower cage plate; 5 is pressurization bolt; 6 is fusiformis intermediate plate; 7 is trepanning; 8 is drag-line; 9 is drag-line; 10 is bridge tower.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
See Fig. 1-Fig. 3, the present invention includes base plate 1 and bidirectional anchoring unit, bidirectional anchoring unit comprises cage plate 3, lower cage plate 4 and fusiformis intermediate plate 6; Base plate 1 is fixedly connected with bridge tower 10, and upper cage plate 3 is connected by pressurization bolt 5 with lower cage plate 4, and bidirectional anchoring unit is connected with base plate 1 by pressurization bolt 5; Base plate 1, upper cage plate 3 and lower cage plate 4 all offer the trepanning passed for drag-line 9, trepanning is the domatic taper adapted with fusiformis intermediate plate 6.Fusiformis intermediate plate 6 is arranged between the trepanning of cage plate 3 and lower cage plate 4.
As shown in Figure 3 and Figure 4, fusiformis intermediate plate 6 comprises connecting portion and is arranged at the symmetrical head of two of connecting portion two ends, and head is provided with domatic, and domatic gradient or angle of slope are 7 °.Fusiformis intermediate plate 6 is put together by multiple axial members, leaves gap between each axial members, and the width in gap is 20mm.Fusiformis intermediate plate 6 is applied to stop it to slide to drag-line generation frictional force and snap-in force by pressurization bolt by upper and lower cage plate, thus plays anchorage effect.Base plate 1 is fixed on bridge tower 10 by set bolt 2 or anchor bolt, and on-slip power is passed to bridge tower by base plate and set bolt, by anchor system and bridge tower consolidation.The ramp portion at fusiformis intermediate plate 6 two is nested in upper and lower cage plate, and drag-line is when any direction has slip trend vertically, and fusiformis intermediate plate and cage plate all can act on and produce on-slip power.
As shown in Figures 3 and 5, the structure of upper and lower cage plate is identical, and exit orifice (one end that perforate is larger) relatively fusiformis intermediate plate fastens, and applies initial on-slip power by pressurization bolt.The side of bridge tower 10, drag-line 9 penetrates bridge tower 10 through after upper cage plate 3, fusiformis intermediate plate 6, lower cage plate 4 and base plate 1 successively; At the opposite side of bridge tower 10, drag-line 9 passes through after base plate 1, lower cage plate 4, fusiformis intermediate plate 6 and upper cage plate 3 successively.
Principle of the present invention:
Bidirectional anchoring power (on-slip power) applies mainly through fusiformis intermediate plate anchoring unit.Because two of fusiformis intermediate plate all has domatic, a fusiformis intermediate plate is made up of (being three shown in figure) the covering of the fan that two to three have gap, after upper and lower cage plate pressurization, tentatively can produce frictional force to drag-line and reach anti-slip effect; In addition when drag-line has tendency toward sliding, drag-line drives fusiformis intermediate plate to move to cage plate direction, and the trepanning on cage plate is also taper (domatic corresponding with fusiformis intermediate plate), and therefore intermediate plate can radial retraction, produce self-friction power, thus strengthen the anti-sliding function to drag-line.The preliminary on-slip power of fusiformis intermediate plate and cage plate is the pressurization bolt applying by running through upper and lower cage plate and base plate.
Installation steps of the present invention:
1, pressurize at the pre-buried base plate of tapping and with set bolt when bridge tower is constructed and fix;
When 2, reeving, drag-line is successively through upper cage plate, fusiformis intermediate plate, and lower cage plate, penetrates bridge tower inside after base plate; Bridge tower opposite side then spreads out of through after base plate, lower cage plate, fusiformis intermediate plate, upper cage plate successively again;
3, screw in pressurization bolt time fixing progressively to apply pressure whole anchoring unit is fixed on bridge tower.
Demounting procedure:
1, first unclamp pressurization bolt during dismounting, upper cage plate can take out; After Suo Li release, lower cage plate also can take out.Cage plate, fusiformis intermediate plate, base plate and bolt all adopt high-strength steel processing and fabricating.
Above content is only and technological thought of the present invention is described; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention, any change that technical scheme basis is done, within the protection domain all falling into claims of the present invention.
Claims (7)
1. low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device, it is characterized in that: comprise base plate (1) and bidirectional anchoring unit, bidirectional anchoring unit comprises cage plate (3), lower cage plate (4) and fusiformis intermediate plate (6); Base plate (1) is fixedly connected with bridge tower (10), upper cage plate (3) is connected by pressurization bolt (5) with lower cage plate (4), and bidirectional anchoring unit is connected with base plate (1) by pressurization bolt (5); Base plate (1), upper cage plate (3) and lower cage plate (4) all offer the trepanning passed for drag-line (9), fusiformis intermediate plate (6) is arranged between the trepanning of cage plate (3) and lower cage plate (4); The side of bridge tower (10), drag-line (9) penetrates bridge tower (10) through after upper cage plate (3), fusiformis intermediate plate (6), lower cage plate (4) and base plate (1) successively; At the opposite side of bridge tower (10), drag-line (9) passes through after base plate (1), lower cage plate (4), fusiformis intermediate plate (6) and upper cage plate (3) successively.
2. low-pylon cable-stayed bridge cradle type Sarasota district as claimed in claim 1 two-way movable suspension cable anchor device, it is characterized in that: described fusiformis intermediate plate (6) comprises connecting portion and is arranged at the symmetrical head of two of connecting portion two ends, and head is provided with domatic.
3. low-pylon cable-stayed bridge cradle type Sarasota district as claimed in claim 2 two-way movable suspension cable anchor device, is characterized in that: described domatic gradient or angle of slope are 7 °.
4. low-pylon cable-stayed bridge cradle type Sarasota district as claimed in claim 1 two-way movable suspension cable anchor device, is characterized in that: described trepanning is the domatic taper adapted with fusiformis intermediate plate.
5. the low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device as described in right 1 to 4 any one, it is characterized in that: described fusiformis intermediate plate (6) is put together by multiple axial members, leaves gap between each axial members.
6. low-pylon cable-stayed bridge cradle type Sarasota district as claimed in claim 5 two-way movable suspension cable anchor device, is characterized in that: the width in described gap is 20mm.
7. low-pylon cable-stayed bridge cradle type Sarasota district as claimed in claim 1 two-way movable suspension cable anchor device, is characterized in that: described base plate (1) is fixed on bridge tower (10) by set bolt (2) or anchor bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236663.8A CN104863059B (en) | 2015-05-11 | 2015-05-11 | Low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236663.8A CN104863059B (en) | 2015-05-11 | 2015-05-11 | Low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104863059A true CN104863059A (en) | 2015-08-26 |
| CN104863059B CN104863059B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510236663.8A Active CN104863059B (en) | 2015-05-11 | 2015-05-11 | Low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220613A (en) * | 2015-10-19 | 2016-01-06 | 中铁第四勘察设计院集团有限公司 | A kind of suspension cable anchor structure eliminating concrete girder cable stayed bridge span centre pulling force |
| CN109778698A (en) * | 2019-01-30 | 2019-05-21 | 柳州市桥厦缆索制品有限公司 | A kind of cable-stayed bridge saddle with antiskid key apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136226A (en) * | 1997-07-23 | 1999-02-09 | Kawaguchi Kinzoku Kogyo Kk | Passing and fixing saddle for diagonal bracing of diagonally suspended bridge |
| CN2658212Y (en) * | 2003-09-10 | 2004-11-24 | 柳州欧维姆机械股份有限公司 | Low tower stayed-cable bridge cable saddlew ith anti-skid anchor |
| CN204644870U (en) * | 2015-05-11 | 2015-09-16 | 长安大学 | Low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device |
-
2015
- 2015-05-11 CN CN201510236663.8A patent/CN104863059B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136226A (en) * | 1997-07-23 | 1999-02-09 | Kawaguchi Kinzoku Kogyo Kk | Passing and fixing saddle for diagonal bracing of diagonally suspended bridge |
| CN2658212Y (en) * | 2003-09-10 | 2004-11-24 | 柳州欧维姆机械股份有限公司 | Low tower stayed-cable bridge cable saddlew ith anti-skid anchor |
| CN204644870U (en) * | 2015-05-11 | 2015-09-16 | 长安大学 | Low-pylon cable-stayed bridge cradle type Sarasota district two-way movable suspension cable anchor device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220613A (en) * | 2015-10-19 | 2016-01-06 | 中铁第四勘察设计院集团有限公司 | A kind of suspension cable anchor structure eliminating concrete girder cable stayed bridge span centre pulling force |
| CN109778698A (en) * | 2019-01-30 | 2019-05-21 | 柳州市桥厦缆索制品有限公司 | A kind of cable-stayed bridge saddle with antiskid key apparatus |
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| Publication number | Publication date |
|---|---|
| CN104863059B (en) | 2016-01-27 |
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