CN104713781B - Bridge pull sling experiment loading unit across Suo Cheng greatly - Google Patents
Bridge pull sling experiment loading unit across Suo Cheng greatly Download PDFInfo
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- CN104713781B CN104713781B CN201510134854.3A CN201510134854A CN104713781B CN 104713781 B CN104713781 B CN 104713781B CN 201510134854 A CN201510134854 A CN 201510134854A CN 104713781 B CN104713781 B CN 104713781B
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- connecting rod
- connector
- reaction beam
- loading unit
- hoist cable
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Abstract
The present invention discloses a kind of bridge pull sling experiment loading unit across Suo Cheng greatly, and connecting rod is at least two, through counter force wall, reaction beam is fixed with one end of connecting rod, the other end of connecting rod connects hoist cable by the connector set on top；It is disposed in parallel relation to one another between connecting rod, reaction beam and the perpendicular setting of connecting rod, jack is provided between reaction beam and counter force wall；The connector opening position that is connected with hoist cable is respectively arranged with connecting hole, sets crab-bolt in the connecting hole on connector and hoist cable, hoist cable is fixed on connector.Corrode the influence of the contrast determination carrying condition of fracture of wire testing result by magnetic striction wave guide method cable under the conditions of different bearer, strong support is provided for the detection of real bridge, meanwhile, this loading device is simple in construction, and it is convenient to prepare, suitable for laboratory operation.
Description
Technical field
The present invention relates to a kind of bridge machinery loading device, more particularly to a kind of bridge pull sling experiment across Suo Cheng greatly to add
Carry and put.
Background technology
Bridge sling is also known as suspension rod, mainly applies to half through or through arch bridge and suspension bridge.In in the past 20 years, GRD geared,
Lower bearing arch bridge is quickly grown.Suspension rod is important Force transmission partses, size is small, component part is more, to fatigue, corrosion etc. because
Element is more sensitive, and the operation state of suspension rod and its component is considerably complicated.It whether normal, it is related to the operation peace of whole bridge
The complete and life-span.Therefore need to detect bridge pull sling duty status, bridge pull sling detection must not destroy cable body
Inspection differentiation is carried out to cable internal corrosion fracture of wire situation on the premise of protection.
Existing bridge pull sling non-destructive testing technology is roughly divided into electromagnetic method and ultrasonic method.It is determined that taking one of which
The degree of accuracy before determination methods preferably to detection carries out judgement early stage in laboratory, to ensure that testing result is reliable, therefore,
It is significant that a kind of loading device of offer laboratory simulation scene stress condition is detected for bridge sling, is examined to improve
Survey result accuracy and provide reliable foundation.
The defects of existing in view of above-mentioned existing detection verification method, the present inventor is based on being engaged in such product design system
Abundant for many years practical experience and professional knowledge are made, and coordinates the utilization of scientific principle, is actively subject to research and innovation, to found one kind
New bridge pull sling experiment loading unit across Suo Cheng greatly, makes it have more practicality.By constantly research, design, and pass through
After studying sample repeatedly and improving, the present invention having practical value is created finally.
The content of the invention
It is a primary object of the present invention to overcome general structure laboratory can not be directly to the difficulty of cable loading, there is provided
A kind of new bridge pull sling experiment loading unit across Suo Cheng greatly, for determining the accuracy of detection of detection means, so as to more suitable
In practicality, and with the value in industry.
The object of the invention to solve the technical problems is realized using following technical scheme.Itd is proposed according to the present invention
Big across Suo Cheng bridge pull sling experiment loading unit, include reaction beam, jack, connector and connecting rod,
The connecting rod is at least two, through counter force wall, is fixed with reaction beam in one end of connecting rod, connecting rod it is another
One end connects hoist cable by the connector set on top；
It is disposed in parallel relation to one another between connecting rod, reaction beam and the perpendicular setting of connecting rod, between reaction beam and counter force wall
It is provided with jack；
The connector opening position that is connected with hoist cable is respectively arranged with connecting hole, is set in the connecting hole on connector and hoist cable
Crab-bolt is put, hoist cable is fixed on connector.
Further, foregoing big across Suo Cheng bridge pull sling experiment loading unit, also includes backing plate, the backing plate
It is arranged between the jack and counter force wall.
Further, foregoing big across Suo Cheng bridge pull sling experiment loading unit, the connecting rod are set for top
Threaded rod iron.
Further, foregoing big across Suo Cheng bridge pull sling experiment loading unit, on the reaction beam with connecting rod
Mounting hole is provided with opposite position, connecting rod is arranged in the mounting hole on reaction beam, by high-strength nut by reaction beam
It is fixed in connecting rod.
Further, foregoing big across Suo Cheng bridge pull sling experiment loading unit, the reaction beam are mutual by U-steel
It is combined to be made, it is fixedly connected between described two adjacent U-steel ends by connecting plate.
Further, foregoing big across Suo Cheng bridge pull sling experiment loading unit, two tops inside U-steel
Between be provided with ribbed stiffener.
Further, foregoing big across Suo Cheng bridge pull sling experiment loading unit, the connector is by the company of being provided with
The connector and reaction beam for connecing hole fix composition.
By above-mentioned technical proposal, present invention bridge pull sling experiment loading unit across Suo Cheng greatly at least has following excellent
Point：
Big across Suo Cheng bridge pull sling experiment loading unit of the present invention, was on active service by testing lab simulation bridge sling
Caused stress state in journey, is detected to hoist cable service state, so as to judge the inspection of the non-destructive testing technology used
Survey whether result is accurate, influence of the carrying condition to cable inspection determined by the contrast of monitoring result under the conditions of different bearer,
Strong support is provided for the detection of real bridge.Meanwhile this loading device is simple in construction, it is convenient to prepare, suitable for laboratory operation.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, described in detail below with presently preferred embodiments of the present invention as after.
Brief description of the drawings
Fig. 1 show present invention bridge pull sling experiment loading unit structural representation across Suo Cheng greatly；
Fig. 2 show reaction beam front view；
Fig. 3 show reaction beam and connecting rod attachment structure schematic diagram；
Fig. 4 show reaction beam left view；
Fig. 5 show connector top view；
Fig. 6 show connector front view；
Connotation is marked in figure：11. counter force wall, 12. backing plates, 13. reaction beams, 14. jack, 15. crab-bolts, 16. connectors,
17. connecting rod, 18. high-strength nuts, 19. hoist cables, 20. connecting holes, 21. connecting plates, 22. ribbed stiffeners, 23. U-steels.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, to according to this
Big across Suo Cheng its embodiment of bridge pull sling experiment loading unit, feature and its effect proposed is invented, is described in detail
As after.
Embodiment 1
Big across Suo Cheng bridge pull sling experiment loading unit structural representation as shown in figs. 1 to 6, includes counter force wall
11st, backing plate 12, reaction beam 13, jack 14, crab-bolt 15, connector 16, connecting rod 17, high-strength nut 18, hoist cable 19, connecting hole
20th, connecting plate 21, ribbed stiffener 22 and U-steel 23.
The loading device of the present invention is fabricated structure, connecting rod 17 is provided among counter force wall 11, connecting rod 17 is
Top sets threaded rod iron, extends through counter force wall 11, wherein one end of connecting rod 17 is fixed with instead by high-strength nut 18
Power beam 13, the other end are fixedly installed connector 16 by high-strength nut 18, and connector 16 connects hoist cable 19, connector 16 and hang
The opening position that is connected of rope 19 is respectively arranged with connecting hole 20, and crab-bolt is set in the connecting hole 20 on connector 16 and hoist cable 19
15, hoist cable 19 is fixed on connector 16, the other end of hoist cable 19 is fixed on earth anchor.
It is disposed in parallel relation to one another between connecting rod 17, and reaction beam 13 and connecting rod 17 are perpendicular, in reaction beam 13 and instead
Jack 14 is provided between power wall 11, in order to increase lifting surface area, reduce pressure, is set between jack 14 and counter force wall 11
Put backing plate 12；Wherein the number of jack 14 can increase or decrease according to the requirement of specific experiment.
By U-steel 23, combination is made reaction beam 13 back-to-back mutually, as shown in figs. 2 to 4, in two adjacent groove profiles
Steel 23 is fixedly connected between end by connecting plate 21, increases bearing capacity, and connecting rod 17 is arranged on two neighboring U-steel 23
In the mounting hole formed at link position, what is be spaced between two tops in the inside of U-steel 23 is provided with ribbed stiffener 22, and then
The bearing capacity of reaction beam 13 can more effectively be increased.
Wherein connector 16 is welded and fixed with reaction beam 13 by the connector for being provided with connecting hole 20 and formed, such as Fig. 5,6
It is shown, significantly more efficient guarantee is proposed to the bearing capacity of whole device using the connector 16 of one, connecting hole 20 be used for
Crab-bolt 15 is connected.
In the preparation process of whole device, the physical dimension of the part such as crab-bolt 15, reaction beam 13, connecting rod 17 can
It is adjusted according to specific experiment condition, operation is more flexible, can use a variety of different bearer abilities, different use conditions
Hoist cable test, the scope of application is wider.
In experimentation：
The one end of hoist cable 19 is fixed on earth anchor, the other end is fixed on connector 16 by the connection function of crab-bolt 15,
Connector 16 is fixed with the phase of connecting rod 17, and the other end of connecting rod 17 between reaction beam 13 and jack 14 by forming loading force
Conduction is overall.
Jack 14 is opened, active force is applied to connecting rod 17 by reaction beam 13, active force is transmitted by connector 16
To hoist cable 19, the loading procedure of power is realized.
By the bearing capacity of hoist cable 19 in observation experiment room, the monitoring to hoist cable service state is realized.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (5)
- A kind of 1. bridge pull sling experiment loading unit across Suo Cheng greatly, it is characterised in that：Include reaction beam（13）, jack （14）, connector（16）And connecting rod（17）,The connecting rod（17）At least two, through counter force wall（11）, in connecting rod（17）One end be fixed with reaction beam （13）, connecting rod（17）The other end pass through the connector that is set on top（16）Connect hoist cable（19）；Connecting rod（17）Between be disposed in parallel relation to one another, reaction beam（13）With connecting rod（17）Perpendicular setting, in reaction beam（13） With counter force wall（11）Between be provided with jack（14）；Connector（16）And hoist cable（19）The opening position that is connected is respectively arranged with connecting hole（20）, in connector（16）And hoist cable （19）On connecting hole（20）Interior setting crab-bolt（15）, by hoist cable（19）It is fixed on connector（16）On；The connecting rod（17）For top, threaded rod iron is set；Also include backing plate（12）, the backing plate（12）It is arranged on the jack（14）With counter force wall（11）Between.
- 2. big across Suo Cheng bridge pull sling experiment loading unit according to claim 1, it is characterised in that：It is described anti- Power beam（13）Upper and connecting rod（17）Mounting hole, connecting rod are provided with opposite position（17）It is arranged on reaction beam（13）On In mounting hole, pass through high-strength nut（18）By reaction beam（13）It is fixed on connecting rod（17）On.
- 3. big across Suo Cheng bridge pull sling experiment loading unit according to claim 1, it is characterised in that：It is described anti- Power beam（13）By U-steel（23）It is combined with each other and is made, two adjacent U-steels（23）Pass through connecting plate between end （21）It is fixedly connected.
- 4. big across Suo Cheng bridge pull sling experiment loading unit according to claim 3, it is characterised in that：In groove profile Steel（23）Ribbed stiffener is provided between internal two tops（22）.
- 5. big across Suo Cheng bridge pull sling experiment loading unit according to claim 1, it is characterised in that：The company Fitting（16）By being provided with connecting hole（20）Connector and reaction beam（13）Fixed composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134854.3A CN104713781B (en) | 2015-03-25 | 2015-03-25 | Bridge pull sling experiment loading unit across Suo Cheng greatly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134854.3A CN104713781B (en) | 2015-03-25 | 2015-03-25 | Bridge pull sling experiment loading unit across Suo Cheng greatly |
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| Publication Number | Publication Date |
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| CN104713781A CN104713781A (en) | 2015-06-17 |
| CN104713781B true CN104713781B (en) | 2017-12-12 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204439465U (en) * | 2015-03-25 | 2015-07-01 | 苏交科集团股份有限公司 | One draws hoist cable experiment loading unit across Suo Cheng bridge greatly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344445B (en) * | 2008-08-18 | 2010-06-02 | 山东大学 | Self-balancing type true three-dimensional loading model testing bench frame with sliding wall |
| CN201402221Y (en) * | 2009-02-17 | 2010-02-10 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Movable multi-point synchronous structure model static test loading device |
| CN203475489U (en) * | 2013-10-12 | 2014-03-12 | 青岛理工大学 | Non-metal anti-floating anchor creep test loading device |
| CN104280297A (en) * | 2014-09-23 | 2015-01-14 | 同济大学 | Counterforce beam loading device and loading method for static load test of bridge beam body |
| CN104631329B (en) * | 2014-12-30 | 2016-06-29 | 中铁大桥局集团有限公司 | A kind of suspension bridge continuous way cat road integral linear method of adjustment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204439465U (en) * | 2015-03-25 | 2015-07-01 | 苏交科集团股份有限公司 | One draws hoist cable experiment loading unit across Suo Cheng bridge greatly |
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Effective date of registration: 20180820 Address after: 550003 1-3-20 three floor, building 1, Qishan temporary housing estate, Hu Chao New District, Guizhou Province, Guizhou Patentee after: Guizhou Sujiao engineering survey and Design Co.,Ltd. Address before: 210117 No. 223, Shui Xi Men street, Jianye District, Nanjing, Jiangsu. Patentee before: JSTI GROUP Co.,Ltd. |
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Effective date of registration: 20190417 Address after: 210019 No. 8 East Street, Fuchunjiang, Jianye District, Nanjing City, Jiangsu Province Patentee after: JSTI GROUP Co.,Ltd. Address before: 550003 1-3-20 three floor, building 1, Qishan temporary housing estate, Hu Chao New District, Guizhou Province, Guizhou Patentee before: Guizhou Sujiao engineering survey and Design Co.,Ltd. |