CN206891635U - A kind of experimental rig for being used to test main push-towing rope side force - Google Patents
A kind of experimental rig for being used to test main push-towing rope side force Download PDFInfo
- Publication number
- CN206891635U CN206891635U CN201720635197.5U CN201720635197U CN206891635U CN 206891635 U CN206891635 U CN 206891635U CN 201720635197 U CN201720635197 U CN 201720635197U CN 206891635 U CN206891635 U CN 206891635U
- Authority
- CN
- China
- Prior art keywords
- main push
- towing rope
- side force
- cable saddle
- load cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of experimental rig for being used to test main push-towing rope side force, cable saddle is fixed on the top center position of self-balancing type pedestal, and two side walls of cable saddle leave the vertical neck to match with load cell.Load cell is secured by bolts in orifice plate by some sensing elements and forming array form, sensing element top surface are directly contacted with parallel steel wire to test the side force of corresponding position.Parallel steel wire by both ends rope boots form tested main push-towing rope it is overall and with tension rod pin joint, realize that Suo Li is loaded by centre-hole jack so that thread in cable saddle from producing side force.The utility model power transmission clearly, operation it is simple, side force that can be at real-time testing different height, test result can be the accurate calculating of main push-towing rope side frictional force and make full use of and provide necessary foundation, therefore have significant scientific value and economic benefit.
Description
Technical field
The utility model belongs to suspension bridge technical field, and in particular to a kind of experiment for testing side force between main push-towing rope and cable saddle
Device.
Background technology
As the major bearing structures of suspension bridge, main push-towing rope by the cable saddle at the top of bridge tower realize across full curve mistake
Cross, and produce CONTACT WITH FRICTION relation with cable saddle simultaneously.To ensure full bridge structure safety, can not occur to slide relatively between main push-towing rope and cable saddle
Move, namely require that the frictional force between main push-towing rope and cable saddle can not be poor less than the main push-towing rope power of cable saddle both sides, therefore the standard of antiskid frictional force
Really calculate most important.
It can be seen from Coulomb friction law, the design conditions of frictional force are the active forces between clear and definite contact surface.Due to cable saddle
The bottom surface of saddle groove is circular arc, therefore the main push-towing rope for undertaking axial force can produce radial load when passing through cable saddle in saddle groove bottom；Together
When again because the lateral spacing of saddle groove acts on, also can produce suitable side force in saddle groove side.At present, the calculating letter of main push-towing rope radial load
It is single clear and definite, but still lack reliable main push-towing rope side force computational methods, and it is then more deficient for the experimental test of main push-towing rope side force,
This directly results in main push-towing rope side frictional force and is difficult to accurately calculate with making full use of.
With the further development of bridge construction, multi-span suspension bridges arise at the historic moment, and the bridge type passes through bridge tower among increasing
Mode realizes the span ability of overlength, is acknowledged as the preferable bridge type across wide water domains such as bay, straits.However, for more
For tower suspension bridge, central tower side is fully loaded, opposite side zero load when, the main push-towing rope power difference of middle Tasso saddle both sides will differ huge, and
Simplify processing mode according to existing cable saddle structure type and the tradition for ignoring the friction of main push-towing rope side, can not often meet main push-towing rope
Antiskid requirement, this turn into multi-span suspension bridges development key restriction factors.
To solve the problem, the Skid Resistance Measures that vertical friction plate is set up in cable saddle are proposed in engineering, the measure due to
The side friction face of main push-towing rope can be increased, therefore there is theoretic feasibility, if but be applied to real bridge, still need to lateral to solve
Condition premised on power problem, this just proposes more urgent reality need to developing rational main push-towing rope side force experimental rig
Ask.
Utility model content
For the above-mentioned technical problem present in prior art, the utility model provides a kind of lateral for testing main push-towing rope
The experimental rig of power.
Technical scheme is used by the utility model solves its technical problem：
It is a kind of to be used to testing the experimental rig of main push-towing rope side force, including self-balancing type pedestal 1, stand on self-balancing type pedestal
Cable saddle 2 and tested main push-towing rope 8 dynamometry and load maintainer；Cable saddle 2 is fixed at the top center position of self-balancing type pedestal 1；
Leave the vertical neck 3 for laying array load cell 20, vertical neck 3 in the centre position of two side walls of cable saddle 2
Size match with array load cell；
Described array load cell is fixed on orifice plate 6 and forming array shape by some sensing elements 4 by bolt 5
Formula, depending on being vertically arranged the number of plies according to arrangement height of the parallel steel wire 7 in cable saddle 2, sensing element 4 directly with parallel steel wire 7
Contact to measure the side force of corresponding position；
Described loading device includes tension rod 10, centre-hole jack 11 and bolt-nut 12；Tension rod 10 is worn
Core type jack 11 and with the pin joint of rope boots 9 at the tested both ends of main push-towing rope 8, tighten bolt-nut 12 in the end of tension rod 10.Positioned at certainly
Centre-hole jack 11 between balanced type pedestal 1 and bolt-nut 12 realizes that Suo Li is loaded, by array load cell 20
Sensing element 4 senses the caused side force in cable saddle 2 of parallel steel wire 7.
Sensing element 4 in the array load cell 20 is in the longitudinal direction at least row of arrangement three.
The beneficial effects of the utility model are：Compared with prior art, main push-towing rope can truly be reflected to the utility model by devising
With the experimental rig and loading scheme of cable saddle architectural feature and stress relation, it is proposed that the lateral force test method of array, have
The advantages that power transmission is clear and definite, model is simple and operation is simple.Test result can be the accurate calculating of main push-towing rope side frictional force with filling
Divide to utilize and necessary foundation is provided, therefore there is significant scientific value and economic benefit.
The utility model is further illustrated with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is overall elevation of the present utility model.
Fig. 2 is Fig. 1 partial top view.
Fig. 3 is sectional views of the Fig. 1 along AA directions.
Fig. 4 is the schematic diagram of array load cell of the present utility model.
In figure, 1. self-balancing type pedestals, 2. cable saddles, 3. vertical necks, 4. sensing elements, 5. bolts, 6. orifice plates, 7. is flat
Row steel wire, 8. tested main push-towing ropes, 9. rope boots, 10. tension rods, 11. centre-hole jacks, 12. bolt-nuts, 20. array dynamometry
Unit.
Specific embodiment
In the embodiment of the experimental rig of the main push-towing rope side force shown in Fig. 1~Fig. 4, self-balancing type pedestal 1 is placed in ground,
For undertaking experiment counter-force and as operating platform.Cable saddle 2 is fixed on the top center position of self-balancing type pedestal 1, cable saddle 2
Vertical neck 3 is left in the centre position of two side walls, for laying array load cell 20, if array load cell 20 by
Dry sensing element 4 is in turn secured on orifice plate 6 by bolt 5 to form.To avoid " dimensional effect ", sensing element 4 is in longitudinal direction
At least row of arrangement three, in the vertical arrangement number of plies then in foundation cable saddle 2 depending on the arrangement height of parallel steel wire 7.Vertical neck 3
Size matches with load cell, therefore constraint reaction can be provided for load cell, and can ensure that side force directly acts on
On the sensing element 4 of corresponding position.On the other hand, be tested main push-towing rope 8 be made up of substantial amounts of parallel steel wire 7, parallel steel wire 7 according to
Predetermined arrangement mode passes through cable saddle 2, and forms entirety by rope boots 9 at both ends.Tension rod 10 passes through centre-hole jack 11, and
With the pin joint of rope boots 9, the end of tension rod 10 is provided with bolt-nut 12.Start centre-hole jack 11, tested main push-towing rope 8 can be carried out
Tensioning loads.
The specific test method of the present embodiment is：The sensing element 4 of predetermined quantity is in turn secured to by bolt 5 first
On orifice plate 6, so as to form array load cell, and the device is embedded in vertical neck 3；According to predetermined arrangement shape
Formula, the parallel steel wire 7 of the section of cable saddle 2 is regularly arranged and be put into saddle groove；Then, tension rod 10 is passed through into self-balancing type pedestal
1 reserving hole, and with the pin joint of rope boots 9 of tested main push-towing rope 8；Centre-hole jack 11 is installed at the both ends of self-balancing type pedestal 1,
And extend there through tension rod 10；Then, bolt-nut 12 is tightened in the end of tension rod 10, makes itself and centre-hole jack 11
Hold out against；Finally, start the centre-hole jack 11 of both sides, realize the loading of pre- standing wire force value, now parallel steel wire 7 is just in saddle groove
It is interior to produce side force certainly, and measured by the sensing element 4 at the diverse location of array load cell 20, it is lateral so as to obtain
The size and distribution pattern of power, and then provide necessary foundation for the checking of correlation theory achievement.
Specific embodiment of the present utility model is described above in association with accompanying drawing, but these explanations can not be understood to
The scope of the utility model is limited, the scope of protection of the utility model is limited by appended claims, any in this reality
All it is the scope of protection of the utility model with the change on the basis of new claim.
Claims (3)
1. a kind of experimental rig for being used to test main push-towing rope side force, it is characterised in that including self-balancing type pedestal (1), stand on certainly
The dynamometry and load maintainer of cable saddle (2) and tested main push-towing rope (8) on balanced type pedestal；Cable saddle (2) is fixed on self-balancing type pedestal
(1) at top center position；Leave for laying array load cell in the centre position of two side walls of cable saddle (2)
(20) vertical neck (3), the size of vertical neck (3) match with array load cell；
Described array load cell (20) is fixed on orifice plate (6) to form by some sensing elements (4) by bolt (5)
Array format, it is vertically arranged depending on arrangement height of the number of plies foundation parallel steel wire (7) in cable saddle (2), sensing element (4) is direct
Contacted with parallel steel wire (7) to measure the side force of corresponding position.
2. the experimental rig according to claim 1 for being used to test main push-towing rope side force, it is characterised in that described loading dress
Put including tension rod (10), centre-hole jack (11) and bolt-nut (12)；Tension rod (10) passes through centre-hole jack
(11) and with rope boots (9) pin joint at tested main push-towing rope (8) both ends；Bolt-nut (12) is tightened in tension rod (10) end；Positioned at certainly
Centre-hole jack (11) between balanced type pedestal (1) and bolt-nut (12) realizes that Suo Li is loaded, by array dynamometry list
Sensing element (4) the sensing caused side force in cable saddle (2) of parallel steel wire 7 of first (20).
3. the experimental rig according to claim 1 for being used to test main push-towing rope side force, it is characterised in that the load cell
(20) sensing element (4) in is in the longitudinal direction at least row of arrangement three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720635197.5U CN206891635U (en) | 2017-06-03 | 2017-06-03 | A kind of experimental rig for being used to test main push-towing rope side force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720635197.5U CN206891635U (en) | 2017-06-03 | 2017-06-03 | A kind of experimental rig for being used to test main push-towing rope side force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206891635U true CN206891635U (en) | 2018-01-16 |
Family
ID=61321132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720635197.5U Expired - Fee Related CN206891635U (en) | 2017-06-03 | 2017-06-03 | A kind of experimental rig for being used to test main push-towing rope side force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206891635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101764A (en) * | 2017-06-03 | 2017-08-29 | 西南交通大学 | A kind of experimental rig for being used to test main push-towing rope side force |
| CN111855169A (en) * | 2020-06-12 | 2020-10-30 | 德阳天元重工股份有限公司 | Suspension bridge AS method main cable strand boot anchoring test assembly and test method thereof |
-
2017
- 2017-06-03 CN CN201720635197.5U patent/CN206891635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101764A (en) * | 2017-06-03 | 2017-08-29 | 西南交通大学 | A kind of experimental rig for being used to test main push-towing rope side force |
| CN111855169A (en) * | 2020-06-12 | 2020-10-30 | 德阳天元重工股份有限公司 | Suspension bridge AS method main cable strand boot anchoring test assembly and test method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107101764A (en) | A kind of experimental rig for being used to test main push-towing rope side force | |
| CN201258494Y (en) | Loading unit for single-pile vertical anti-pulling static load test | |
| KR101072721B1 (en) | Apparatus for pile load test | |
| CN102829990B (en) | Assembled two-tower cable-stayed bridge damage identification test model system | |
| CN106501014A (en) | Vertical load testing machine for domain tunnel structure | |
| CN104975621B (en) | A kind of many anchored end retaining wall indoor model test device and test method | |
| CN206891635U (en) | A kind of experimental rig for being used to test main push-towing rope side force | |
| CN101101249A (en) | 32m/900t prestressed concrete pretension box beam static loading test method | |
| CN106092775B (en) | Cement Concrete Deck Paving Course and floorings shearing strength at intersection stiffness test method | |
| CN102995669B (en) | Large-tonnage foundation pile uplift-resistant static test connection device, loading counter-force system and method | |
| CN212007614U (en) | Vertical effective prestress detection device based on reverse pulling method | |
| CN102866070B (en) | Loading method for bearing strength test for secondary lining concrete structure of tunnel | |
| CN105043884A (en) | Testing device for carrying capacity of comprehensive pipe gallery and pipe joint and application method | |
| CN102507347A (en) | Load-carrying capacity test device of tunnel secondary-lining concrete structure | |
| CN103758161B (en) | Pressure testing device and the pressure-measuring method of pile for prestressed pipe is measured with periphery pile tube component | |
| CN105692378B (en) | A kind of elevator no-load coefficient of balance detection means based on hydraulic cylinder straight top type | |
| CN208748712U (en) | A kind of test pile vertical compression detection device | |
| CN201926464U (en) | Single-tower cable-stayed bridge test model based on damage identification | |
| CN110439039B (en) | Self-balancing test pile indoor loading equipment | |
| CN113897938B (en) | Pile system capable of dynamically monitoring interaction distribution force of pile and freeze-thaw soil | |
| CN207717334U (en) | A kind of laboratory cable tension vibration detecting device based on jack | |
| CN205015228U (en) | Utility tunnel tube coupling bearing capacity test device | |
| CN212514055U (en) | Interface shear strength testing arrangement between road surface structure layer | |
| CN207181008U (en) | Winch pull force tester | |
| CN202305349U (en) | Test device for bearing capacity of tunnel secondary lining concrete structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |