CN203275055U - Device for vibration test of stay cable model - Google Patents
Device for vibration test of stay cable model Download PDFInfo
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- CN203275055U CN203275055U CN 201320234529 CN201320234529U CN203275055U CN 203275055 U CN203275055 U CN 203275055U CN 201320234529 CN201320234529 CN 201320234529 CN 201320234529 U CN201320234529 U CN 201320234529U CN 203275055 U CN203275055 U CN 203275055U
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Abstract
The utility model discloses a device for vibration test of a stay cable model, which comprises a top unit and a bottom unit. The top unit comprises a top anchor slab, a connecting rod, a tension sensor and a first cross-section-variable sleeve; and the bottom unit comprises a counterforce cylinder, a counterforce cylinder bolt, a ground anchor bearer, a reaction support, a second cross-section-variable sleeve, a cross-core jack, a long threaded rod and a reinforcing nut. The device for vibration test of the stay cable model provided by the utility model is simple in structure and convenient in operation, can adjust top and bottom angles in the vibration test for the stay cable, and can conveniently adjust tensioning angles while ensuring accurate pre-stress application to realize horizontal and inclined tensioning; influence of generated errors to the vibration test can be neglected; and thus, the device of the utility model can carry out vibration tests of the stay cable according to different inclined angles.
Description
Technical field
The utility model belongs to the experiment test device field, is specifically related to a kind of device for the drag-line shaking table test.
Background technology
The vibration performance of drag-line is the emphasis of its dynamic performance research, the model test of testing laboratory is the important method of research inhaul cable vibration characteristic, but due to the shortage of the restriction that is subject to the testing laboratory space and special test unit, make the model of vibration test of testing laboratory's drag-line be difficult to carry out.
The angle that more existing inhaul cable vibration test units can't be regulated drag-line, often can only realize the vibration test of jump stay, perhaps press the vibration test of the suspension cable of certain angle inclination, if when needing translation-angle, also to reappear the new test unit of design processing, not only consuming time, repeat processing but also can cause, bring waste to a certain degree.And error appears when equipment processing, and sometimes even can cause test to carry out, need redesign processing, very large on the impact of test progress.
Therefore, need a kind of device of new drag-line shaking table test to address the above problem.
The utility model content
The utility model purpose: the utility model can't be regulated the defective of the angle of drag-line for inhaul cable vibration test unit in prior art, and a kind of device that is used for the drag-line shaking table test that can accurately apply stretching force and can regulate the angle of drag-line is provided.
Technical scheme: for solving the problems of the technologies described above, the device for the drag-line shaking table test of the present utility model adopts following technical scheme:
a kind of device for the drag-line shaking table test, comprise top device and bottom device, described top device comprises the top anchor slab, connecting rod, pulling force sensor and the first variable cross section sleeve, described bottom device comprises the counter-force cylinder, counter-force cylinder bolt, the ground anchor chair, reaction frame, the second variable cross section sleeve, the punching lifting jack, long threaded rod and afterburning nut, described top anchor slab is fixed on counter force wall, one end of described connecting rod and described top anchor slab are hinged, the other end of described connecting rod connects an end of described pulling force sensor, the other end of described pulling force sensor connects described the first variable cross section sleeve, described the first variable cross section sleeve connects an end of drag-line, described ground anchor chair fixes on the ground, described counter-force cylinder and described ground anchor chair are hinged, one end of described counter-force cylinder connects an end of described reaction frame, described the second variable cross section sleeve is arranged in described reaction frame, the other end of described reaction frame connects an end of described punching lifting jack, described long threaded rod passes described punching lifting jack, the other end of drag-line passes described counter-force cylinder and connects an end of described the second variable cross section sleeve, the other end of described the second variable cross section sleeve connects an end of described long threaded rod, the other end of described long threaded rod is provided with described afterburning nut.
Further, also comprise the first backing plate and the second backing plate, be provided with through hole on described the first backing plate and the second backing plate, be provided with described the first backing plate between described counter-force cylinder and reaction frame, be provided with described the second backing plate between described reaction frame and punching lifting jack.
Further, also comprise the first external thread rod and the second external thread rod, described connecting rod connects described pulling force sensor by described the first external thread rod, and described pulling force sensor connects described the first variable cross section sleeve by described the second external thread rod.
Further, also comprise boss, described boss is fixedly connected with described top anchor slab, and described connecting rod and described boss are hinged.
Further, be provided with trench on described ground, described ground anchor chair is fixed in described trench.
Further, described top anchor slab is connected with described counter force wall by bolt.The bolt that the position of top anchor slab on counter force wall can also be as required connects counter force wall and top anchor slab by adjustment is adjusted.
Further, the two ends of described drag-line are provided with the external thread ground tackle, and described external thread ground tackle is fixedly connected with drag-line.By the external thread ground tackle is convenient, drag-line is connected to the first variable cross section sleeve and the second variable cross section sleeve.
Further, also comprise the ground tackle cover, described ground tackle cover is used for the position of stay rope.
Further, also comprise hold-down nut, described hold-down nut is arranged on described drag-line between described the second variable cross section sleeve and the first backing plate.After hold-down nut is close to the first backing plate and is used for accurately applying stretching force, the position of stay rope, and effectively keep the stretching force of drag-line.
Beneficial effect: the apparatus structure for the drag-line shaking table test of the present utility model is simple, easy to operate, the angle that has realized inhaul cable vibration test top and bottom is adjustable, guaranteeing accurately to apply the prestressed while, regulate easily the angle of stretch-draw, realize horizontal stretch-draw and tiltedly stretch-draw, foozle can be ignored on the impact of vibration test, so the utility model can be realized the vibration test by the drag-line of different angles inclination.
Description of drawings
The structural representation of the top device of Fig. 1 device for the drag-line shaking table test of the present utility model;
The front view of Fig. 2 top anchor slab;
The left view of Fig. 3 top anchor slab;
The front view of Fig. 4 boss;
The vertical view of Fig. 5 boss;
The left view of Fig. 6 boss;
The front view of Fig. 7 pin;
The vertical view of Fig. 8 pin;
The front view of Fig. 9 connecting rod;
The vertical view of Figure 10 connecting rod;
The left view of Figure 11 connecting rod;
The front view of Figure 12 the first external thread rod;
The left view of Figure 13 the first external thread rod;
The front view of Figure 14 the second external thread rod;
The left view of Figure 15 the second external thread rod;
The front view of Figure 16 the first variable cross section sleeve;
The A-A of Figure 17 the first variable cross section sleeve is to cut-open view;
The structural representation of the bottom device of Figure 18 device for the drag-line shaking table test of the present utility model;
The front view of Figure 19 counter-force cylinder;
The left view of Figure 20 counter-force cylinder;
The vertical view of Figure 21 counter-force cylinder;
The front view of Figure 22 counter-force cylinder bolt;
The left view of Figure 23 counter-force cylinder bolt;
The front view of Figure 24 ground anchor chair;
The vertical view of Figure 25 ground anchor chair;
The left view of Figure 26 ground anchor chair;
The front view of Figure 27 the first backing plate;
The left view of Figure 28 the first backing plate;
The stereographic map of Figure 29 reaction frame;
The front view of Figure 30 reaction frame;
The left view of Figure 31 reaction frame;
The upward view of Figure 32 reaction frame;
The front view of Figure 33 the second backing plate;
The left view of Figure 34 the second backing plate;
The front view of Figure 35 the second variable cross section sleeve;
The B-B of Figure 36 the second variable cross section sleeve is to cut-open view;
The front view of the long threaded rod of Figure 37;
The left view of the long threaded rod of Figure 38;
The front view of the afterburning nut of Figure 39;
The left view of the afterburning nut of Figure 40;
The vertical view of the afterburning nut of Figure 41;
The front view of Figure 42 hold-down nut;
The left view of Figure 43 hold-down nut;
The structural representation of Figure 44 device for the drag-line shaking table test of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
See also Fig. 1, Figure 18 and shown in Figure 44, device for the drag-line shaking table test of the present utility model, comprise top device 100 and bottom device 200, top device 100 comprises top anchor slab 1, connecting rod 4, pulling force sensor 6 and the first variable cross section sleeve 8, bottom device 200 comprise counter-force cylinder 9, counter-force cylinder bolt 10, anchor chair 11, reaction frame 13, the second variable cross section sleeve 15, punching lifting jack 16, long threaded rod 17 and afterburning nut 18.
Top anchor slab 1 is fixed on counter force wall 400.Preferably, top anchor slab 1 is connected with counter force wall 400 by bolt.The position of top anchor slab 1 on counter force wall 400 can also connect counter force wall 400 by adjustment as required and adjust with the bolt of top anchor slab 1.
One end and the top anchor slab 1 of connecting rod 4 are hinged, and be preferred, also comprises boss 2, and boss 2 is fixedly connected with top anchor slab 1, and connecting rod 4 is hinged with boss 2.The other end of connecting rod 4 connects an end of pulling force sensor 6.The other end of pulling force sensor 6 connects the end that the first variable cross section sleeve 8, the first variable cross section sleeves 8 connect drag-line 300.Also comprise the first external thread rod 5 and the second external thread rod 7, connecting rod 4 connects pulling force sensor 6 by the first external thread rod 5, and pulling force sensor 6 connects the first variable cross section sleeve 8 by the second external thread rod 7.
Ground anchor chair 11 fixes on the ground.Wherein, be provided with trench 500 on ground, ground anchor chair 11 is fixed in trench 500.Counter-force cylinder 9 is hinged with ground anchor chair 11, one end of counter-force cylinder 9 connects an end of reaction frame 13, the second variable cross section sleeve 15 is arranged in reaction frame 13, the other end of reaction frame 13 connects an end of punching lifting jack 16, long threaded rod 17 passes punching lifting jack 16, the other end of drag-line 300 passes counter-force cylinder 9 and connects an end of the second variable cross section sleeve 15, and the other end of the second variable cross section sleeve 15 connects an end of long threaded rod 17, and the other end of long threaded rod 17 is provided with afterburning nut 18.Also comprise on the first backing plate 12 and the second backing plate 14, the first backing plates 12 and the second backing plate 14 being provided with through hole, be provided with the first backing plate 12 between counter-force cylinder 9 and reaction frame 13, be provided with the second backing plate 14 between reaction frame 13 and punching lifting jack 16.
The two ends of drag-line 300 are provided with external thread ground tackle 19; 22, ground tackle cover 20; 21 are used for the position of stay rope 300.By external thread ground tackle 19; 22 conveniently are connected to the first variable cross section sleeve 8 and the second variable cross section sleeve 15 with drag-line 300.
Embodiment:
See also Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16 and shown in Figure 17, first top anchor slab 1 is fixed by bolts on the counter force wall 400 of testing laboratory, then with bolt, boss 2 is anchored on top anchor slab 1, connect connecting rod 4 and boss 2 with pin 3, owing to being clearance fit between pin 3 and connecting rod 4, connecting rod 4 can freely rotate around pin 3, can realize that drag-line 300 angles in top are adjustable.Wherein, top anchor slab 1 is the rectangle steel plate, has manhole on it, utilize bolt it can be anchored on counter force wall 400, can move up and down top anchor slab 1 to suitable position along metope as required, also have threaded hole on it simultaneously, above boss 2 can being anchored at.The rectangular parallelepiped that is shaped as of boss 2 adds a semi-cylindrical projection, has small sircle hole on it, is connected with top anchor slab 1 with bolt, has simultaneously big hole, and big hole diameter and pin 3 external diameters are adaptive, and pin 3 inserts wherein.The assembly that is shaped as a long cylinder and an oblate post of pin 3, the large aperture of the diameter of elongated cylinder and boss 2 is adaptive.The assembly that is shaped as annulus and rectangular parallelepiped of connecting rod 4, the external diameter of the internal diameter of annulus and pin 3 is adaptive, leave small gap, the connecting rod 4 that makes can freely rotate around pin 3, the angle that realizes drag-line 300 top anchorings is adjustable, have internal thread hole in rectangular parallelepiped, diameter coordinates with the external thread of external thread rod 5.
The first external thread rod 5, the second external thread rod 7 are connected to the top with pulling force sensor 6, can measure and control the stretching force that imposes on drag-line 300.The first variable cross section sleeve 8 is connected to the top with the drag-line 300 different from the second external thread rod 7 external diameters.When realizing that the top angle is adjustable, the position of top anchor slab 1 on counter force wall 400 can also connect counter force wall 400 by adjustment as required and adjust with the bolt of top anchor slab 1.Wherein, the first external thread rod 5 is cylindrical, and there is external thread the front and back end, an end of the first external thread rod 5 and the screw-internal thread fit of connecting rod 4, and the other end is connected with the threaded hole of pulling force sensor 6.The second external thread rod 7 is cylindrical, and there is external thread the front and back end, and an end is connected with the threaded hole of pulling force sensor 6, and the other end coordinates with the first variable cross section sleeve 8.The first variable cross section sleeve 8 be shaped as two right cylinders that diameter is different, all have internal thread hole, an end is connected with the first external thread rod 7, the other end is connected with the external thread ground tackle of drag-line 300.
See also Figure 19, Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25, Figure 26, Figure 27, Figure 28, Figure 29, Figure 30, Figure 31, Figure 32, Figure 33, Figure 34, Figure 35, Figure 36, Figure 37, Figure 38, Figure 39, Figure 40, Figure 41, Figure 42 and shown in Figure 43, the bottom part of drag-line 300 vibration tests is fixed on ground anchor chair 11 by bolt on the ground that is provided with trench 500, and counter-force cylinder bolt 10 is connected to counter-force cylinder 9 on ground anchor chair 11.Wherein, ground anchor chair 11 is welded by three block plates, respectively has different circular holes on it, and Circularhole diameter is adaptive with bolt, counter-force cylinder bolt 10, screw rod respectively.The cylindrical shape that is shaped as heavy wall of counter-force cylinder 9 has two relative threaded holes on barrel, threaded hole matches with the external thread of counter-force cylinder bolt 10 front ends.Counter-force cylinder bolt 10 is the assembly of long cylinder and oblate post, the part of long cylinder front end has external thread, remainder is the light face, counter-force cylinder 9 is connected with ground anchor chair 11, because there is adaptive screw thread on counter-force cylinder 9, counter-force cylinder bolt 10 tops, counter-force cylinder 9 and linking together that counter-force cylinder bolt 10 can be fixed can not relatively rotate between the two.And the pin that the part that counter-force cylinder bolt 10 is connected with ground anchor chair 11 is clearance fit connects, and surface of contact is smooth, can freely rotate, and then realizes that counter-force cylinder 9 around freely the rotating of counter-force cylinder bolt 10 axles, realizes that the earth anchor Partial angle is adjustable.Then after by the first backing plate 12, the second backing plate 14, reaction frame 13 being erected at counter-force cylinder 9, in order to utilize the second backing plate 14 and punching lifting jack 16 to apply stretching force.Wherein, the first backing plate 12 is square plate, have circular hole on it, the size in aperture guarantees that the external thread ground tackle of drag-line 300 can therefrom pass, the second backing plate 14 is also square plate, has circular hole on it, and the size in aperture guarantees that long threaded rod 17 can therefrom pass, but be less than the external diameter of punching lifting jack 16, be convenient to lifting jack 16 and apply stretching force.After hold-down nut 23 is close to the first backing plate 12 and is used for accurately applying stretching force, the position of stay rope 300, and effectively keep the stretching force of drag-line 300.The second variable cross section sleeve 15 is placed in reaction frame 13, connects drag-line 300 external thread ground tackles and long threaded rod 17.Wherein, the second variable cross section sleeve 15 be shaped as two right cylinders that diameter is different, have internal thread hole, an end is connected with the external thread ground tackle of drag-line 300, the other end is connected with long threaded rod 17.Long threaded rod 17 is cylindrical, and there is external thread at two ends, and an end matches with the internal thread of the second variable cross section sleeve 15 1 ends, and the other end matches with afterburning nut 18.Afterburning nut 18 be shaped as the regular hexagon nut, internal thread matches with the external thread of long threaded rod 17 1 ends.Hold-down nut 23 be shaped as gear-like, have internal thread, threaded hole and drag-line 300 external thread ground tackles 19; 22 external diameter matches.Punching lifting jack 16 is close to the second backing plate 14, passes long threaded rod 17, is tightened in afterburning nut 18 on the long threaded rod other end by pushing tow, and drag-line 300 is applied stretching force.
Experimental procedure:
At first, according to length L and the tilt angle theta of drag-line 300 in the model of vibration testing program, according to formula H=Lsin θ; L '=Lcos θ calculates the distance L of the liftoff height H of top device and bottom device and counter force wall 400 '.
Secondly, utilize bolt fixing top anchor slab 1 on counter force wall 400 according to height H, then according to distance L ' utilize bolt that ground anchor chair 11 is fixed on the relevant position on the ground that is provided with trench 500.
The 3rd, with bolt, boss 2 is arranged on top anchor slab 1, with pin 3, connecting rod 4 and boss 2 pin joints are got up again, then with the first external thread rod 5, the second external thread rod 7, pulling force sensor 6 and above-mentioned part are linked together, then connect an end of drag-line 300 by the first variable cross section sleeve 8.
the 4th, counter-force cylinder 9 threaded holes are alignd with corresponding circular hole on ground anchor chair 11 both sides steel plates, with two counter-force cylinder bolts 10, counter-force cylinder 9 is connected with ground anchor chair 11, settle the first backing plate 12 thereafter, the other end of drag-line 300 passes the angle of the hole use hold-down nut 23 preliminary stay ropies 300 on counter-force cylinder 9 and the first backing plate 12, pitch angle with the apparatus measures drag-line 300 that takes measurement of an angle, if with design angle, deviation is arranged, owing to top and bottom can realizing free rotation, can regulate by the position of regulating top anchor slab 1 or ground anchor chair 11, until the pitch angle reaches predetermined angle.
The 5th, after reaction frame 13 was placed in the second backing plate 14, the inside linked together drag-line 300 and long threaded rod 17 with the second variable cross section sleeve 15, and the second backing plate 14 is close to the reaction frame back, and long threaded rod passes from the hole of the second backing plate 14.Punching lifting jack 16 is through on long threaded rod 17, and is close to the second backing plate 14, afterburning nut 18 is screwed in the other end of long threaded rod 17.Utilize the piston of hydraulic pushing punching lifting jack 16, piston is the afterburning nut 18 of pushing tow again, and drag-line 300 is applied pulling force.
The top pulling force sensor is connected with static data Acquisition Instrument TDS, can read value of thrust, can control exactly by the value of thrust of pulling force sensor the stretching force size that applies, when the pulling force that applies when lifting jack reaches predetermined value, stop applying stretching force, with hold-down nut 23 stay ropies, and the pulling force of maintenance drag-line, the stretch-draw of drag-line completed.
The 6th, lay accelerometer or displacement meter, the vibration test of beginning drag-line model.
Apparatus structure for the drag-line shaking table test of the present utility model is simple, easy to operate, the angle that has realized inhaul cable vibration test top and bottom is adjustable, guaranteeing accurately to apply the prestressed while, regulate easily the angle of stretch-draw, realize horizontal stretch-draw and tiltedly stretch-draw, foozle can be ignored on the impact of vibration test, so the utility model can be realized the vibration test by the drag-line of different angles inclination.
Claims (9)
1. device that is used for the drag-line shaking table test, it is characterized in that, comprise top device (100) and bottom device (200), described top device (100) comprises top anchor slab (1), connecting rod (4), pulling force sensor (6) and the first variable cross section sleeve (8), described bottom device (200) comprises counter-force cylinder (9), counter-force cylinder bolt (10), ground anchor chair (11), reaction frame (13), the second variable cross section sleeve (15), punching lifting jack (16), long threaded rod (17) and afterburning nut (18), described top anchor slab (1) is fixed on counter force wall (400), one end of described connecting rod (4) and described top anchor slab (1) are hinged, the other end of described connecting rod (4) connects an end of described pulling force sensor (6), the other end of described pulling force sensor (6) connects described the first variable cross section sleeve (8), described the first variable cross section sleeve (8) connects an end of drag-line (300), described ground anchor chair (11) fixes on the ground, described counter-force cylinder (9) is hinged with described ground anchor chair (11), one end of described counter-force cylinder (9) connects an end of described reaction frame (13), described the second variable cross section sleeve (15) is arranged in described reaction frame (13), the other end of described reaction frame (13) connects an end of described punching lifting jack (16), described long threaded rod (17) passes described punching lifting jack (16), the other end of drag-line (300) passes described counter-force cylinder (9) and connects an end of described the second variable cross section sleeve (15), the other end of described the second variable cross section sleeve (15) connects an end of described long threaded rod (17), the other end of described long threaded rod (17) is provided with described afterburning nut (18).
2. the device for the drag-line shaking table test as claimed in claim 1, it is characterized in that, also comprise the first backing plate (12) and the second backing plate (14), be provided with through hole on described the first backing plate (12) and the second backing plate (14), be provided with described the first backing plate (12) between described counter-force cylinder (9) and reaction frame (13), be provided with described the second backing plate (14) between described reaction frame (13) and punching lifting jack (16).
3. the device for the drag-line shaking table test as claimed in claim 1, it is characterized in that, also comprise the first external thread rod (5) and the second external thread rod (7), described connecting rod (4) connects described pulling force sensor (6) by described the first external thread rod (5), and described pulling force sensor (6) connects described the first variable cross section sleeve (8) by described the second external thread rod (7).
4. the device for the drag-line shaking table test as claimed in claim 1, is characterized in that, also comprises boss (2), and described boss (2) is fixedly connected with described top anchor slab (1), and described connecting rod (4) is hinged with described boss (2).
5. the device for the drag-line shaking table test as claimed in claim 1, is characterized in that, is provided with trench (500) on described ground, and described ground anchor chair (11) is fixed in described trench (500).
6. the device for the drag-line shaking table test as claimed in claim 1, is characterized in that, described top anchor slab (1) is connected with described counter force wall (400) by bolt.
7. the device for the drag-line shaking table test as claimed in claim 1, is characterized in that, the two ends of described drag-line (300) are provided with external thread ground tackle (19; 22), described external thread ground tackle (19; 22) be fixedly connected with drag-line (300).
8. the device for the drag-line shaking table test as claimed in claim 7, is characterized in that, also comprises ground tackle cover (20; 21), described ground tackle cover (20; 21) be used for the position of stay rope.
9. the device for the drag-line shaking table test as claimed in claim 1, it is characterized in that, also comprise hold-down nut (23), described hold-down nut (23) is arranged on described drag-line (300) between described the second variable cross section sleeve (15) and the first backing plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234529 CN203275055U (en) | 2013-05-02 | 2013-05-02 | Device for vibration test of stay cable model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234529 CN203275055U (en) | 2013-05-02 | 2013-05-02 | Device for vibration test of stay cable model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275055U true CN203275055U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320234529 Expired - Lifetime CN203275055U (en) | 2013-05-02 | 2013-05-02 | Device for vibration test of stay cable model |
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| Country | Link |
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| CN (1) | CN203275055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245473A (en) * | 2013-05-02 | 2013-08-14 | 东南大学 | Device for guy cable model vibration test |
| CN112081387A (en) * | 2020-08-26 | 2020-12-15 | 中冶建筑研究总院有限公司 | Intelligent control inhaul cable prestress adjusting device and cable force adjusting and controlling method thereof |
-
2013
- 2013-05-02 CN CN 201320234529 patent/CN203275055U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245473A (en) * | 2013-05-02 | 2013-08-14 | 东南大学 | Device for guy cable model vibration test |
| CN103245473B (en) * | 2013-05-02 | 2015-10-07 | 东南大学 | A kind of device for guy cable model vibration test |
| CN112081387A (en) * | 2020-08-26 | 2020-12-15 | 中冶建筑研究总院有限公司 | Intelligent control inhaul cable prestress adjusting device and cable force adjusting and controlling method thereof |
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Granted publication date: 20131106 |
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