CN204389083U - A kind of model test suspension cable anchoring and cable tension test device - Google Patents
A kind of model test suspension cable anchoring and cable tension test device Download PDFInfo
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- CN204389083U CN204389083U CN201520098606.3U CN201520098606U CN204389083U CN 204389083 U CN204389083 U CN 204389083U CN 201520098606 U CN201520098606 U CN 201520098606U CN 204389083 U CN204389083 U CN 204389083U
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- suspension cable
- adjustment joint
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- girder
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Abstract
The utility model a kind of model test suspension cable anchoring and cable tension test device, comprise suspension cable, described suspension cable is provided with adjustment joint, upper and lower surface through adjustment joint is provided with adjusts rope screw rod, the side of adjustment joint is provided with and the drag-line guide pipe adjusting joint internal run-through, and one end of described suspension cable is stretched into adjustment joint inside through drag-line guide pipe and is fixed on and adjusts on rope screw rod; Adjustment joint is connected with a pulling force sensor.By adopting said apparatus, the stressing influence factor of suspension cable in Cable-stayed Bridge Model is reduced, and Cable stress more close to true stressing conditions, and can realize the adjustment of Suo Li and the test of Suo Li quickly and easily, and simple, precision is higher.
Description
Technical field
The utility model belongs to suspension cable model test field, and being specifically related to a kind ofly needs to determine inclined guy cable stretching power and in experimentation, need to test the test model of Suo Li change to different design conditions.
Background technology
Cable-stayed bridge belongs to multiple indeterminate system, for analyzing its stress performance, the method of model test that adopts is studied in indoor more at present, the physical dimension of structural model test is less than prototype, make easily, mounting or dismounting are convenient, and same model can carry out the simulation test of multiple different operating mode.
At present, for different similar proportion, the Cable-stayed Bridge Model of different materials, suspension cable cross section after carrying out similar calculating size and initial tension value all less, its anchor type and cable tension test comparatively Practical Project are not quite similar.The anchoring of Cable-stayed Bridge Model drag-line when laboratory is carried out is generally by locked with buckle after disposable for drag-line stretch-draw to desirable value, and have ignored the impact of construction in later period process on Suo Li, the method is very inconvenient to the adjustment of Suo Li, and not high to the control accuracy of stretch-draw value.
The cable tension test method of model is generally adopted and in the middle part of drag-line, pulling force sensor is installed, because suspension cable is too thin, sensor is difficult to fixing when connecting, and the quality of sensor is larger for the drag-line of test model, after connecting with suspension cable, the character such as quality, rigidity of whole drag-line all changes, and causes experimental data error larger.
Summary of the invention
The purpose of this utility model is design a kind of model test suspension cable anchoring and cable tension test device, solve in existing model test because of by suspension cable and the less tune rope caused of anchor size inconvenient, test the not high problem of Suo Li precision.
For achieving the above object, the utility model adopts following technical scheme:
A kind of model test suspension cable anchoring and cable tension test device, comprise suspension cable, described suspension cable is provided with adjustment joint, upper and lower surface through adjustment joint is provided with adjusts rope screw rod, the side of adjustment joint is provided with and the drag-line guide pipe adjusting joint internal run-through, and one end of described suspension cable is stretched into adjustment joint inside through drag-line guide pipe and is fixed on and adjusts on rope screw rod; Adjustment joint is connected with a pulling force sensor.
Further, described proving installation also comprises girder anchorage screw, and girder anchorage screw is fixedly installed on the side of adjustment joint, is symmetrically distributed in the heteropleural adjusting joint, is located on the same line with drag-line guide pipe; Described pulling force sensor is serially connected on girder anchorage screw.
Further, described suspension cable is fixedly installed on king-tower, and girder anchorage screw is arranged in girder.
Further, be provided with anchor plate vertically disposed with girder anchor rod in described girder, girder anchor rod is arranged on anchor plate by girder anchorage nut.
Further, the upper surface of described adjustment joint is fixedly installed nut, and described tune rope screw rod is assemblied in nut, and stretches into adjustment joint.
Further, setting-up piece is provided with between described nut and adjustment joint.
Further, offer the through hole running through adjustment joint upper and lower surface in described adjustment joint, through hole internal diameter is greater than the external diameter adjusting rope screw rod; Described drag-line guide pipe and the through setting of through hole.
Further, described pulling force sensor is S shape pulling force sensor.
The defect that the utility model can not conveniently regulate for drag-line in existing cable tension test process, be provided with adjustment joint design, this structure is formed a connecting link, be convenient to install with suspension cable, girder anchorage screw be connected, and be provided with wherein and adjust rope screw rod, adjusting the mode of rope screw rod to make suspension cable be wound around (or unclamping) on tune rope screw rod by rotating, tightening up the object of (or loosening) suspension cable to reach, thus suspension cable is adjusted easily; Be provided with anchor plate simultaneously, make hard point structure firmer.This device makes Cable stress close to true stressing conditions, and can realize the adjustment of Suo Li and the test of Suo Li quickly and easily, and simple, precision is higher.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram;
Fig. 2 is the schematic diagram that the utility model is arranged on Cable-stayed Bridge Model;
Fig. 3 is the enlarged drawing of Fig. 2 place part A;
Fig. 4 is suspension cable and the structural representation adjusting rope screw rod to coordinate;
Fig. 5 is suspension cable adjusting structural representation when rope screw rod is wound around;
Number in the figure represents: 1-adjusts rope screw rod, 2-nut, 3-setting-up piece, 4-drag-line guide pipe, 5-suspension cable, 6-adjusts joint, 7-girder anchorage screw, 8-girder anchorage nut, 9-pulling force sensor, 10-anchor plate, 11-girder, 12-king-tower, 13-main pier.
Embodiment
Inconvenience is tested because suspension cable 5 can not adjust easily, simultaneously because sensor mass can produce certain influence to cable tension test in existing model test.In order to overcome these defects, the anchoring of a kind of model test suspension cable and cable tension test device is proposed in the utility model, comprise suspension cable 5, described suspension cable 5 is provided with adjustment joint 6, upper and lower surface through adjustment joint 6 is provided with adjusts rope screw rod 1, the side of adjustment joint 6 is provided with and the drag-line guide pipe 4 adjusting joint 6 internal run-through, and one end of described suspension cable 5 is stretched into adjustment joint 6 inside through drag-line guide pipe 4 and is fixed on and adjusts on rope screw rod 1; Adjustment joint 6 is connected with a pulling force sensor 9.
Adjustment joint 6 is the structures formed a connecting link, and it is connected with suspension cable 5 on the one hand, is connected on the other hand with pulling force sensor 9.Consider in this programme that the total quality of pulling force sensor 9 is comparatively large on test model impact, Gu be not arranged on suspension cable 5 by pulling force sensor 9, but be arranged on the opposite side of adjustment joint 6, arrange with suspension cable 5 heteropleural.Its topmost effect of adjustment joint 6 is the tensioning degree of adjustment suspension cable 5, it adjusts principle substantially, rope screw rod 1 is adjusted by rotating, the suspension cable 5 extending into adjustment joint 6 inside is wound around on tune rope screw rod 1, shorten the length of suspension cable 5 in adjustment joint 6 outside, play the object of tensioning suspension cable 5 with this.And when needing to loosen suspension cable 5, then rotate backward and adjust rope screw rod 1, suspension cable 5 is taken off, as shown in Figure 4, Figure 5 from tune rope screw rod 1.In Fig. 4, adjust rope screw rod 1 not rotate, and adjust rope screw rod 1 rotation to make suspension cable 5 wound on it in Fig. 5, now suspension cable 5 tightens up.By this easy regulative mode, Suo Li can be adjusted quickly and easily, and the accurate control to Suo Li can be accomplished.
Concrete set-up mode is, the upper surface of adjustment joint 6 is fixedly installed nut 2, and described tune rope screw rod 1 is assemblied in nut 2, and stretches into adjustment joint 6.Offer the through hole running through adjustment joint 6 upper and lower surface in adjustment joint 6, through hole internal diameter is greater than the external diameter adjusting rope screw rod 1; Described drag-line guide pipe 4 and the through setting of through hole.
Adjusting rope screw rod 1 to rotate rear position needs fixing, is provided with nut 2 in this programme.Nut 2 is fixedly installed with adjustment joint 6, is equipped with tune rope screw rod 1.Adjust rope screw rod 1 to extend in the through hole of adjustment joint 6 inside, do not contact with through-hole wall, and the space reserved is to be wound around suspension cable 5.After rotating owing to adjusting rope screw rod 1, it can move up and down, and and solid suspension cable 5 can not be wrapped in same position on tune rope screw rod 1 makes it block.Be provided with setting-up piece 3 between nut 2 and adjustment joint 6, setting-up piece 3 can prevent drag-line termination overhanging, and the working environment of protection adjustment joint 6 inside.
On the sidewall of adjustment joint 6, symmetry offers a pair threaded hole, is respectively used to be connected with drag-line guide pipe 4, girder anchorage screw 7.The wall thickness of adjustment joint 6 is 10mm ~ 15mm.
In this programme, proving installation also comprises girder anchorage screw 7, and girder anchorage screw 7 is fixedly installed on the side of adjustment joint 6, is symmetrically distributed in the heteropleural adjusting joint 6, is located on the same line with drag-line guide pipe 4; Described pulling force sensor 9 is serially connected on girder anchorage screw 7.
Girder anchorage screw 7 mainly contains two effects, and one is because its rigidity is large, is arranged on by pulling force sensor 9 and sensor mass wherein can be avoided the impact of suspension cable 5; Two are used to be connected with girder 11.When specifically arranging, girder anchorage screw 7 can be disconnected from middle part, pulling force sensor 9 is welded in the middle, pulling force sensor 9 is connected in series and becomes one part, and when testing girder anchorage screw 7 and suspension cable 5 conllinear, therefore the data that pulling force sensor 9 obtains can accurately react Suo Li situation, are gathered the data that sensor obtains by data collecting instrument; Pulling force sensor 9 adopts S shape pulling force sensor, and arrange conveniently, measurement result is accurate, and it is of a size of 5cm × 5cm × 1cm.
As shown in Figure 2, the schematic diagram on Cable-stayed Bridge Model is applied in for this programme.Be king-tower 12 above main pier 13, girder 11 is vertically set between main pier 13, king-tower 12.During test, one end of suspension cable 5 is fixedly installed on king-tower 12, and the other end extend into adjustment joint 6 inside through drag-line guide pipe 4 and is wrapped on tune rope screw rod 1.The effect of drag-line guide pipe 4 is the straight of maintenance drag-line, and drag-line can not be bent after adjustment joint 6 stretches out.Girder anchorage screw 7 is arranged in girder 11.
Consider the problem that hard point possibility load is excessive, in girder 11, be provided with girder anchorage screw 7 vertically disposed anchor plate 10 in this programme, girder anchorage screw 7 is arranged on anchor plate 10 by girder anchorage nut 8, as shown in Figure 3.
Utilize this device to carry out model test and can refer to following steps:
Step one, makes bridge model according to each cross dimensions of reduced scale computation model of cable-stayed bridge;
Step 2, makes or prepares above each device accessory;
Step 3, also fixes the suspension cable one end of 5cm length of having more than needed than actual guy cable length through drag-line guide pipe and is wrapped in and adjust on rope screw rod;
Step 4, the other end of suspension cable is fixedly installed on king-tower;
Step 5, after girder anchorage screw welding shape pulling force sensor, one end is fixedly assemblied on adjustment joint, and the other end is fixed on anchor plate by girder anchorage nut;
Step 6, adjusts rope screw rod adjustment rope force value by turning after modelling, and namely the data acquisition instrument connected by pulling force sensor can read rope force value.
Claims (8)
1. a model test suspension cable anchoring and cable tension test device, comprise suspension cable (5), it is characterized in that, described suspension cable (5) is provided with adjustment joint (6), upper and lower surface through adjustment joint (6) is provided with adjusts rope screw rod (1), the side of adjustment joint (6) is provided with and the drag-line guide pipe (4) adjusting joint (6) internal run-through, and one end of described suspension cable (5) is stretched into adjustment joint (6) inside through drag-line guide pipe (4) and is fixed on and adjusts on rope screw rod (1); Adjustment joint (6) is connected with a pulling force sensor (9).
2. model test suspension cable anchoring and cable tension test device as claimed in claim 1, it is characterized in that, described proving installation also comprises girder anchorage screw (7), girder anchorage screw (7) is fixedly installed on the side of adjustment joint (6), be symmetrically distributed in drag-line guide pipe (4) heteropleural adjusting joint (6), be located on the same line; Described pulling force sensor (9) is serially connected on girder anchorage screw (7).
3. model test suspension cable anchoring and cable tension test device as claimed in claim 2, it is characterized in that, described suspension cable (5) is fixedly installed on king-tower (12), and girder anchorage screw (7) is arranged in girder (11).
4. model test suspension cable anchoring and cable tension test device as claimed in claim 3, it is characterized in that, be provided with and girder anchorage screw (7) vertically disposed anchor plate (10) in described girder (11), girder anchorage screw (7) is arranged on anchor plate (10) by girder anchorage nut (8).
5. model test suspension cable anchoring and cable tension test device as claimed in claim 1, it is characterized in that, the upper surface of described adjustment joint (6) is fixedly installed nut (2), described tune rope screw rod (1) is assemblied in nut (2), and stretches into adjustment joint (6).
6. model test suspension cable anchoring and cable tension test device as claimed in claim 5, is characterized in that, is provided with setting-up piece (3) between described nut (2) and adjustment joint (6).
7. model test suspension cable anchoring and cable tension test device as claimed in claim 1, it is characterized in that, offer the through hole running through adjustment joint (6) upper and lower surface in described adjustment joint (6), through hole internal diameter is greater than the external diameter adjusting rope screw rod (1); Described drag-line guide pipe (4) and the through setting of through hole.
8. model test suspension cable anchoring and cable tension test device as claimed in claim 1, it is characterized in that, described pulling force sensor (9) is S shape pulling force sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098606.3U CN204389083U (en) | 2015-02-11 | 2015-02-11 | A kind of model test suspension cable anchoring and cable tension test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098606.3U CN204389083U (en) | 2015-02-11 | 2015-02-11 | A kind of model test suspension cable anchoring and cable tension test device |
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| Publication Number | Publication Date |
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| CN204389083U true CN204389083U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520098606.3U Expired - Fee Related CN204389083U (en) | 2015-02-11 | 2015-02-11 | A kind of model test suspension cable anchoring and cable tension test device |
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| CN (1) | CN204389083U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489882A (en) * | 2018-11-22 | 2019-03-19 | 长安大学 | Big-size model test is anchored with cable-stayed bridge cable and cable tension test device and method |
| CN109489883A (en) * | 2018-11-22 | 2019-03-19 | 长安大学 | Big-size model test low-pylon cable-stayed bridge anchor-hold and cable tension test device |
| CN109724740A (en) * | 2019-01-12 | 2019-05-07 | 尚廷东 | A kind of drag-line bridge cable force measurement device |
-
2015
- 2015-02-11 CN CN201520098606.3U patent/CN204389083U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489882A (en) * | 2018-11-22 | 2019-03-19 | 长安大学 | Big-size model test is anchored with cable-stayed bridge cable and cable tension test device and method |
| CN109489883A (en) * | 2018-11-22 | 2019-03-19 | 长安大学 | Big-size model test low-pylon cable-stayed bridge anchor-hold and cable tension test device |
| CN109489882B (en) * | 2018-11-22 | 2020-10-13 | 长安大学 | Cable-stayed bridge cable anchoring and cable force testing device and method for large-size model test |
| CN109724740A (en) * | 2019-01-12 | 2019-05-07 | 尚廷东 | A kind of drag-line bridge cable force measurement device |
| CN109724740B (en) * | 2019-01-12 | 2024-04-16 | 尚廷东 | Cable force measuring device for inhaul cable bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20180211 |