CN205506596U - Small diameter large deflection friction -type saddle anchor rope system abrasion - tired universal test bench - Google Patents
Small diameter large deflection friction -type saddle anchor rope system abrasion - tired universal test bench Download PDFInfo
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- CN205506596U CN205506596U CN201620033317.XU CN201620033317U CN205506596U CN 205506596 U CN205506596 U CN 205506596U CN 201620033317 U CN201620033317 U CN 201620033317U CN 205506596 U CN205506596 U CN 205506596U
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000005299 abrasion Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 123
- 239000010959 steel Substances 0.000 claims abstract description 123
- 238000005096 rolling process Methods 0.000 claims abstract description 56
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims description 8
- 238000011161 development Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000009661 fatigue test Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The support technical development that exists to the domestic and international cable -stay bridge of the aforesaid lags behind, the utility model provides an abrasion of small diameter large deflection friction -type saddle anchor rope system tired universal test bench is including steel strand wires earth anchor subassembly, reaction beam earth anchor subassembly, reaction beam, concrete saddle platform, hydraulic pressure power -assist ware, rolling device, full size saddle, cable board, steel strand wires anchor slab 15. During the use, pass the full size saddle with the cable steel strand wires, with the both ends of cable steel strand wires respectively with adjacent steel strand wires earth anchor subassembly on the steel strand wires anchor slab be connected. Make hydraulic pressure power -assist ware drive concrete saddle platform reciprocating motion, the atress of simulation cable steel strand wires in the concrete saddle platform and the wearing and tearing condition. The utility model discloses an useful technological effect does: the utility model discloses a radius be the full size saddle at 2.1m, gyration angle 155.1232, possess the extreme operational environment cable steel strand wires 2m limit radius under, fully guaranteed fidelity and the convincingness tested.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, specifically be an abrasion-tired universal test platform that is used for big corner saddle anchor rope system of minor radius.
Background
At present, more and more cable-stayed bridges are used for sea-crossing, river-crossing and urban traffic engineering. But the development of the support technology is relatively delayed compared to the rapid development of the span. In particular, the worry about the tension cracking of the concrete pylon troubles each application of the cable-stayed bridge.
The cable tower anchor cable structure of the traditional cable system of the cable-stayed bridge comprises a concrete tooth block, a steel anchor box, a steel anchor beam, a steel saddle and the like. The overall technology is mature, but the key technology still has defects: the steel saddle can not bear larger unbalanced cable force and is mainly used for the short-tower cable-stayed bridge. The concrete tooth block, the steel anchor box and the steel anchor beam all generate tensile force on the cable tower in the mechanism, and once the control is not good, cracks occur. The inertia thinking in design seriously influences the further development of the cable-stayed bridge. Engineering requires a fundamental solution.
In view of the above, a new concept of a guy cable, namely a rotary guy cable, is newly provided, and the problem of cracking of a cable anchor area of a cable tower is fundamentally solved by utilizing the characteristics that the guy cable is symmetrical in the transverse bridge direction and the difference of cable force at two sides is very low, and obliquely winding the guy cable around the cable tower through an obliquely arranged saddle of the cable tower to change tensile force into annular pressure.
However, although this structure is supported by the accumulation of engineering experience and the development of material properties, there are many problems between the concept and reality. Among them, the analysis and control of abrasion-fatigue phenomena of the stay cable in the saddle are the primary technical problems.
An abrasion-fatigue test of a cable-stayed bridge saddle anchor cable system at home and abroad is investigated, a small corner test with the radius of 2.4m is carried out on a VSL saddle at international, and a small corner test with the radius of 3m is carried out on an OVM saddle at home. However, no report is found on saddles with a radius close to 2m and a corner close to 180 degrees due to the lack of test equipment and methods.
SUMMERY OF THE UTILITY MODEL
Aiming at the support technology development lag that exists at the cable-stayed bridge at home and abroad, the abrasion-fatigue test of the saddle anchor cable system is the blank that exists in form and theory, the utility model provides a small-radius large-corner friction type abrasion-fatigue universal test bed of the saddle anchor cable system. The concrete structure is as follows:
the abrasion-fatigue universal test bed for the small-radius large-corner saddle anchor cable system comprises a steel strand ground anchor component 2, a reaction beam ground anchor component 3, a reaction beam 4, a concrete saddle platform 5, a hydraulic booster 6, a rolling device 7, a full-scale saddle 11, a stay cable anchor seat 14 and a steel strand anchor plate 15. Wherein,
the reaction beam ground anchor component 3 is fixedly arranged on the foundation. And a reaction beam 4 is arranged at one end of the reaction beam ground anchor component 3. The reaction beam 4 is connected with a concrete saddle platform 5 through a hydraulic booster 6.
The telescopic shaft of the hydraulic booster 6 is horizontal to the foundation. The concrete saddle 5 moves in the expansion and contraction direction of the hydraulic booster 6.
The concrete saddle platform 5 contains 1 full-scale saddle 11. The full-scale saddle 11 is hollow, and the openings at the two ends of the full-scale saddle 11 are respectively connected with the surface of the concrete saddle table 5.
And the foundations on the two sides of the reaction beam ground anchor component 3 are respectively and fixedly connected with 1 steel strand ground anchor component 2.
Each steel strand ground anchor component 2 is provided with 1 pair of steel strand anchor plates 15. The steel strand anchor plates 15 on the same steel strand ground anchor assembly 2 are connected together through a inhaul cable anchor seat 14.
When the full-scale ground anchor assembly is used, the stay cable steel strand 16 penetrates through the full-scale saddle 11, and two ends of the stay cable steel strand 16 are respectively connected with the steel strand anchor plates 15 on the adjacent steel strand ground anchor assemblies 2. The hydraulic booster 6 drives the concrete saddle table 5 to reciprocate, and the stress and abrasion conditions of the stay cable steel strand 16 in the concrete saddle table 5 are simulated.
A rolling device steel top plate 8 is arranged on the bottom surface of the concrete saddle table 5; a rolling device steel base 9 is arranged on the foundation below the rolling device steel top plate 8; the top of the rolling device steel base 9 is provided with a groove, and a rolling device steel roller 10 is arranged in the groove of the rolling device steel base 9. The bottom surface of the rolling device steel top plate 8 is contacted with a rolling device steel roller 10; the length direction of the groove at the top of the rolling device steel base 9 is consistent with the telescopic direction of the hydraulic power-assisted device 6; the axial direction of the steel roller 10 of the rolling device is vertical to the extension direction of the hydraulic booster 6. 2 rolling device steel top plates 8 are arranged on the bottom surface of the concrete saddle table 5; a rolling device steel base 9 is arranged on the foundation below each rolling device steel top plate 8. A saddle wire dividing pipe 13 is arranged in the full-scale saddle 11; the saddle wire dividing pipe 13 is a hollow round pipe; the cavity of the saddle wire-dividing pipe 13 is used for installing and clamping the inhaul cable steel strand 16. More than 10 saddle wire dividing tubes 13 are arranged in the full-scale saddle 11; the cavity of each saddle branching pipe 13 can accommodate 1 stay cable steel strand 16. More than 4 partition boards are arranged in the full-scale saddle 11; each clapboard is provided with a hole; the number of the holes on the partition plate is the same as that of the saddle wire-dividing pipes 13; the edge of the clapboard is connected with the inner wall of the full-scale saddle 11; the saddle wire-dividing tube 13 is fixed in the cavity of the full-scale saddle 11 through a clapboard. The full-scale saddle 11 has a radius of 2.1m and a pivot angle of 155.1232 °. The average load value of the hydraulic booster 6 is not less than 1600kN, the load amplitude is not less than 218kN, and the loading frequency is not less than 1.8 Hz. The stay cable steel strand 16 is clamped in the saddle wire-dividing pipe 13 through friction force,
The friction work between the stay cable steel strand 16 and the saddle wire-dividing pipe 13 conforms to the following formula:
friction work of cable strand at anchor end
Derivative of friction work on stress
Coefficient of friction work against stress amplitude
Wherein T is the upper limit stress value of a single cable strand, and Delta T is the stress amplitude of the single cable strand; e is the elastic modulus value of the single strand; b is a normal number.
The beneficial technical effects of the utility model are embodied in the following aspects:
the utility model discloses a radius be 2.1m, gyration angle 155.1232 full chi saddle, possess the extreme operational environment under the cable steel strand wires 2m limit radius, fully guaranteed experimental fidelity and convincing power.
The utility model discloses possess according to the experimental requirement of conventional cable-stay bridge 200MPa stress amplitude, carry out the abrasion-fatigue test's of many cable steel strands under drawing, bending, side pressure effect ability simultaneously.
The utility model discloses put forward for the first time and regard as the notion of "abrasiveness" measurement standard with "friction work to derive its quantitative expression formula, establish abrasion-fatigue test generalized quantitative judgement algorithm, revealed experimental important law, realized the breakthrough of experimental theory. The method has general guiding significance for the manufacture of the test model and the design of the scheme in the future.
Drawings
Fig. 1 is a schematic diagram of the general arrangement of the present invention (structural side plan view).
Fig. 2 is a front plan view of fig. 1.
Fig. 3 is a front side view of fig. 1.
Fig. 4 is a side bottom view of fig. 1.
Fig. 5 is a front plan view of fig. 1.
Fig. 6 is a schematic view of the hydraulic assist of fig. 1.
Fig. 7 is a schematic view of the hydraulic assist reaction beam of fig. 1.
Fig. 8 is a side bottom view of the concrete saddle table of fig. 1.
Fig. 9 is an exploded view of the concrete saddle table rolling device of fig. 1.
FIG. 10 is a partial perspective view of the concrete saddle platform of FIG. 1.
Fig. 11 is a schematic view of the fully simulated full-scale saddle structure of fig. 10 with radius 2.1m and pivot angle 155.1232 °.
Fig. 12 is a schematic view of the full-simulation full-scale saddle split-wire tube structure of fig. 11.
Fig. 13 is a schematic view of the structure of the stay anchor of fig. 1.
Fig. 14 is a schematic view of the end structure of the fully simulated full foot rule saddle of fig. 13.
FIG. 15 is a schematic view of the abrasion-fatigue universal test stand of FIG. 1 in an operating state after the stay wire strand is threaded.
Sequence numbers in the upper figure: the device comprises a steel strand ground anchor component 2, a reaction beam ground anchor component 3, a reaction beam 4, a concrete saddle platform 5, a hydraulic power aid 6, a rolling device 7, a rolling device steel top plate 8, a rolling device steel base 9, a rolling device steel rolling shaft 10, a full-scale saddle 11, a saddle end part 12, a saddle wire dividing pipe 13, a guy cable anchor seat 14, a steel strand anchor plate 15 and a guy cable steel strand 16.
Detailed Description
The structural features of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the abrasion-fatigue universal test bed for the small-radius large-corner saddle anchor cable system comprises a steel strand ground anchor assembly 2, a reaction beam ground anchor assembly 3, a reaction beam 4, a concrete saddle table 5, a hydraulic booster 6, a rolling device 7, a full-scale saddle 11, a cable anchor seat 14 and a steel strand anchor plate 15. Fig. 2 and 4 are schematic views of another angle of fig. 1. Wherein, referring to fig. 3, the reaction beam ground anchor assembly 3 is fixedly installed on the foundation. And a reaction beam 4 is arranged at one end of the reaction beam ground anchor component 3. The reaction beam 4 is connected with a concrete saddle platform 5 through a hydraulic booster 6. The hydraulic power assist 6 is shown in fig. 7, and the concrete saddle 5 is shown in fig. 8.
Referring to fig. 3 and 5, the telescopic shaft of the hydraulic booster 6 is horizontal to the ground. The concrete saddle 5 moves in the expansion and contraction direction of the hydraulic booster 6.
Referring to fig. 9, the concrete saddle stand 5 contains 1 full-length saddle 11. The full-scale saddle 11 is hollow, and the openings at the two ends of the full-scale saddle 11 are respectively connected with the surface of the concrete saddle table 5.
And the foundations on the two sides of the reaction beam ground anchor component 3 are respectively and fixedly connected with 1 steel strand ground anchor component 2.
Referring to fig. 1 and 13, 1 pair of steel strand anchor plates 15 are provided on each steel strand ground anchor assembly 2. The steel strand anchor plates 15 on the same steel strand ground anchor assembly 2 are connected together through a inhaul cable anchor seat 14.
Referring to fig. 15, when in use, the stay cable steel strand 16 passes through the full-scale saddle 11, and two ends of the stay cable steel strand 16 are respectively connected with the steel strand anchor plates 15 on the adjacent steel strand ground anchor assemblies 2. The hydraulic booster 6 drives the concrete saddle table 5 to reciprocate, and the stress and abrasion conditions of the stay cable steel strand 16 in the concrete saddle table 5 are simulated.
Further, referring to fig. 8 and 9, a rolling device steel top plate 8 is provided on the bottom surface of the concrete saddle table 5. A rolling device steel base 9 is arranged on the foundation below the rolling device steel top plate 8. The top of the rolling device steel base 9 is provided with a groove, and a rolling device steel roller 10 is arranged in the groove of the rolling device steel base 9.
Further, the bottom surface of the rolling device steel top plate 8 is in contact with the rolling device steel roller 10. The length direction of the groove at the top of the rolling device steel base 9 is consistent with the extension direction of the hydraulic power-assisted device 6. The axial direction of the steel roller 10 of the rolling device is vertical to the extension direction of the hydraulic booster 6.
Further, 2 rolling device steel top plates 8 are provided on the bottom surface of the concrete saddle table 5. A rolling device steel base 9 is arranged on the foundation below each rolling device steel top plate 8.
Further, referring to fig. 10, a saddle wire-dividing tube 13 is provided in the full-foot saddle 11. The saddle wire dividing pipe 13 is a hollow round pipe. The cavity of the saddle wire-dividing pipe 13 is used for installing and clamping the inhaul cable steel strand 16.
Further, more than 10 saddle wire dividing tubes 13 are arranged in the full-scale saddle 11, as shown in fig. 12. The cavity of each saddle branching pipe 13 can accommodate 1 stay cable steel strand 16.
Further, referring to fig. 11 and 12, more than 4 partition plates are arranged in the full-scale saddle 11. Each partition plate is provided with a hole. The number of the holes on the partition plate is the same as that of the saddle wire-dividing pipes 13. Fig. 14 is a detail view of the end of the foot rule saddle 11 in fig. 10, 11. The edge of the partition is connected with the inner wall of the full scale saddle 11. The saddle wire-dividing tube 13 is fixed in the cavity of the full-scale saddle 11 through a clapboard.
Further, referring to fig. 11, the full-foot saddle 11 has a radius of 2.1m and a pivot angle of 155.1232 °.
Furthermore, the average load value of the hydraulic booster 6 is not less than 1600kN, the load amplitude is not less than 218kN, and the loading frequency is not less than 1.8 Hz.
Furthermore, the stay cable steel strand 16 is clamped in the saddle wire dividing pipe 13 through friction force, and the friction work between the stay cable steel strand 16 and the saddle wire dividing pipe 13 conforms to the following formula:
friction work of cable strand at anchor end
Derivative of friction work on stress
Coefficient of friction work against stress amplitude
Wherein T is the upper limit stress value of a single cable strand, and Delta T is the stress amplitude of the single cable strand. E is the strand elastic modulus value of a single strand. B is a normal number.
When the above formula is met: in the abrasion-fatigue test of the system, abrasion is not only an independent system performance, but also a key control factor of the fatigue resistance performance of the system. The abrasion of the strand at the anchor end is independent of the saddle radius and the corner and is dominated by the stress amplitude. The large stress amplitude directly adversely affects the abrasion of the anchor end. The upper limit stress increases and the anchor end erosion decreases inversely.
Furthermore, the apparatus of the present invention has not been precedent at present, and only has been discussed in theory. In order to truly analyze and effectively control the abrasion-fatigue phenomenon of the inhaul cable in the saddle, the utility model discloses develop the abrasion-fatigue universal test bench of the small-radius large-corner friction type saddle anchor cable system.
Referring to fig. 1, 2, 3, 4 and 5, the test bed 1 is composed of a steel strand ground anchor assembly 2, a reaction beam ground anchor assembly 3, a reaction beam 4, a concrete saddle table 5, an auxiliary engine 6, a rolling device 7, a full-scale saddle 11 and the like, is arranged in a horizontal mode, 31 wire dividing pipes are arranged in the full-scale saddle, and 31 test hole sites can be provided for penetrating steel strands of a guy cable.
Referring to fig. 6 and 7, a test bed 1 is provided with a hydraulic booster 6, the front end of the hydraulic booster 6 is propped against the center of the inner side surface of a saddle table 5, the rear end of the hydraulic booster is propped against the center of the inner side surface of a counterforce beam 4 on a counterforce beam ground anchor assembly 3, a group of 8 stay cable steel strands can be dynamically loaded under the action of pulling, bending and lateral pressure according to the requirement of a conventional cable-stayed bridge 200MPa stress amplitude test, and the maximum load value loaded by the hydraulic booster is 250 t.
Referring to fig. 4, 8 and 9, two sets of rolling devices 7 are arranged below the saddle table 5. The rolling device steel top plate 8 is pre-buried in saddle platform bottom surface, and the steel base 9 anchor is in ground. 3 steel rolling shafts 10 are arranged between the steel top plate and the steel base of each set of rolling device. When the power-assisted device carries out dynamic loading, the saddle platform moves along the loading direction by the rolling device.
Referring to fig. 10, the full-scale saddle 11 is pre-embedded inside the saddle platform 5, and the end parts 12 are symmetrically arranged on two sides of the inner side surface of the saddle platform. Referring to fig. 8, the full-scale saddle 11 is directly selected from saddles with the radius of 2.1m and the rotation angle of 155.1232 degrees, the outer side of the saddle is formed by welding four steel plates, the outer sides of the upper steel plate and the lower steel plate are uniformly provided with shear nails which are connected with concrete in an anchoring manner, the inner side of the saddle is provided with a wire dividing pipe used for penetrating a guy cable steel strand, and the wire dividing pipe is fixed inside the saddle through partition plates which are uniformly arranged at intervals.
Referring to fig. 11, 12 and 13, the stay cable steel strand 16 correspondingly passes through the wire dividing pipe 13 arranged in the full-scale saddle 11, is clamped in the saddle by friction force, and is anchored on a stay cable anchor seat 14 arranged on the steel strand ground anchor assembly 2 by a steel strand anchor plate 15 after two ends of the stay cable steel strand are tensioned.
Referring to fig. 14 and 15, the fatigue resistance of the stay cable steel strand 16 under the action of pulling, bending and lateral pressure is actually shown by using a comprehensive saddle test bed, and the damage of the stay cable steel strand on the end part 12 of the saddle is focused. The research duration is nearly 1 year, 3 batches of 10 groups of tests are carried out, and finally, the inhaul cable steel strand adopting double-layer polyurea protection is preferably selected.
The test bed is based on a saddle with a specific size of a main span 246m single-column cable-tower cable-stayed bridge, the mean load value of the hydraulic booster is 1600kN, the load amplitude is 218kN, and the frequency of test loading is 1.8 Hz. Whether the test has wide meaning is a key problem which must be explained. In order to unify the judgment standard of the test, the internal rule of the test is disclosed, the concept of taking the friction work as the measuring standard of the abrasion degree is provided by researching the principle of work and energy conversion, and a quantitative expression formula and two derivative expression formulas are deduced. The friction work of the end part of the full-bridge saddle is calculated and is less than 58.48 kN.m/m of the test model 3. The using condition is better than the test condition, and the test is effective.
Claims (10)
1. A abrasion-fatigue universal test bench for big corner saddle anchor rope system of minor radius, its characterized in that: the device comprises a steel strand ground anchor component (2), a reaction beam ground anchor component (3), a reaction beam (4), a concrete saddle platform (5), a hydraulic power-assisted device (6), a rolling device (7), a full-scale saddle (11), a guy cable anchor seat (14) and a steel strand anchor plate (15); wherein,
the reaction beam ground anchor component (3) is fixedly arranged on the foundation; one end of the reaction beam ground anchor component (3) is provided with a reaction beam (4); the reaction beam (4) is connected with a concrete saddle platform (5) through a hydraulic power-assisted device (6);
the telescopic shaft of the hydraulic booster (6) is horizontal to the foundation; the concrete saddle table (5) moves along the telescopic direction of the hydraulic booster (6);
the concrete saddle table (5) is internally provided with 1 full-scale saddle (11); the foot rule saddle (11) is hollow, and openings at two ends of the foot rule saddle (11) are respectively connected with the surface of the concrete saddle table (5);
the foundation on the two sides of the reaction beam ground anchor component (3) is respectively and fixedly connected with 1 steel strand ground anchor component (2);
each steel strand ground anchor assembly (2) is provided with 1 pair of steel strand anchor plates (15); the steel strand anchor plates (15) on the same steel strand ground anchor assembly (2) are connected together through a inhaul cable anchor seat (14).
2. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 1, wherein: a rolling device steel top plate (8) is arranged on the bottom surface of the concrete saddle table (5); a rolling device steel base (9) is arranged on the foundation below the rolling device steel top plate (8); the top of the rolling device steel base (9) is provided with a groove, and a rolling device steel roller (10) is arranged in the groove of the rolling device steel base (9).
3. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 2, wherein: the bottom surface of the rolling device steel top plate (8) is contacted with a rolling device steel roller (10); the length direction of a groove at the top of the rolling device steel base (9) is consistent with the telescopic direction of the hydraulic power-assisted device (6); the axial direction of the steel rolling shaft (10) of the rolling device is vertical to the extension direction of the hydraulic power-assisted device (6).
4. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 2, wherein: 2 rolling device steel top plates (8) are arranged on the bottom surface of the concrete saddle table (5); a rolling device steel base (9) is arranged on the foundation below each rolling device steel top plate (8).
5. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 2, wherein: a saddle wire dividing pipe (13) is arranged in the full-scale saddle (11); the saddle wire dividing pipe (13) is a hollow round pipe; the cavity of the saddle wire-dividing pipe (13) is used for installing and clamping a stay cable steel strand (16).
6. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 5, wherein: more than 10 saddle wire dividing tubes (13) are arranged in the full-scale saddle (11); the cavity of each saddle wire-dividing pipe (13) can contain 1 stay cable steel strand (16).
7. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 5, wherein: more than 4 clapboards are arranged in the full-scale saddle (11); each clapboard is provided with a hole; the number of the holes on the partition plate is the same as that of the saddle wire dividing pipes (13); the edge of the clapboard is connected with the inner wall of the full-scale saddle (11); the saddle wire-dividing pipe (13) is fixed in the cavity of the full-scale saddle (11) through a clapboard.
8. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 1, wherein: the radius of the full-scale saddle (11) is 2.1m, and the rotation angle is 155.1232 degrees.
9. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 1, wherein: the average load value of the hydraulic booster (6) is not less than 1600kN, the load amplitude is not less than 218kN, and the loading frequency is not less than 1.8 Hz.
10. The abrasion-fatigue universal test stand for small radius large corner saddle anchor cable systems of claim 5, wherein: through friction, the stay cable steel strand (16) is clamped in the saddle wire dividing pipe (13), and the friction work between the stay cable steel strand (16) and the saddle wire dividing pipe (13) accords with the following formula:
wherein T is the upper limit stress value of a single cable strand, and Delta T is the stress amplitude of the single cable strand; e is the elastic modulus value of the single strand; b is a normal number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033317.XU CN205506596U (en) | 2016-01-14 | 2016-01-14 | Small diameter large deflection friction -type saddle anchor rope system abrasion - tired universal test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033317.XU CN205506596U (en) | 2016-01-14 | 2016-01-14 | Small diameter large deflection friction -type saddle anchor rope system abrasion - tired universal test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506596U true CN205506596U (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620033317.XU Withdrawn - After Issue CN205506596U (en) | 2016-01-14 | 2016-01-14 | Small diameter large deflection friction -type saddle anchor rope system abrasion - tired universal test bench |
Country Status (1)
| Country | Link |
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| CN (1) | CN205506596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466799A (en) * | 2016-01-14 | 2016-04-06 | 安徽省交通控股集团有限公司 | Abrasion-fatigue universal test bench of small-radius large-turn-angle friction-type saddle anchor cable system |
-
2016
- 2016-01-14 CN CN201620033317.XU patent/CN205506596U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466799A (en) * | 2016-01-14 | 2016-04-06 | 安徽省交通控股集团有限公司 | Abrasion-fatigue universal test bench of small-radius large-turn-angle friction-type saddle anchor cable system |
| CN105466799B (en) * | 2016-01-14 | 2018-05-04 | 安徽省交通控股集团有限公司 | Minor radius big corner friction-type saddle anchor cable system abrasion-fatigue universal testing stand |
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