CN206270187U - A kind of drag-line fatigue tester - Google Patents
A kind of drag-line fatigue tester Download PDFInfo
- Publication number
- CN206270187U CN206270187U CN201621432052.7U CN201621432052U CN206270187U CN 206270187 U CN206270187 U CN 206270187U CN 201621432052 U CN201621432052 U CN 201621432052U CN 206270187 U CN206270187 U CN 206270187U
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- China
- Prior art keywords
- drag
- girder steel
- test specimen
- line
- line test
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- 238000012360 testing method Methods 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 9
- 238000005183 dynamical system Methods 0.000 claims abstract description 6
- 238000009661 fatigue test Methods 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of drag-line fatigue tester, belongs to testing machine field, is mainly used in the fatigue test of stayed structure.Drag-line fatigue tester each system such as including structural system, dynamical system, measurement and control system.Structural system includes reinforced concrete frame, stretching end girder steel, anchored end girder steel, connection girder steel, connector；Dynamical system includes two actuator；Measurement and control system includes force snesor, displacement transducer, measurement and controller.This testing machine can carry out the large-tonnage fatigue test of single large-scale drag-line, and two fatigue tests of small-sized drag-line can be carried out again.This two fatigue tests of small-sized drag-line can simultaneously be carried out and are independent of each other, so as to improve test efficiency.
Description
Technical field
The utility model belongs to testing machine field, is related specifically to drag-line testing machine.
Background technology
Drag-line as cable-stayed bridge one of important stressed member, under complicated load factor and external environment condition effect, must
There must be good anti-fatigue performance.Drag-line fatigue test is the Main Means for studying drag-line fatigue behaviour, and drag-line fatigue examination
The machine of testing is the main tool of drag-line fatigue test.Current domestic existing drag-line fatigue tester is mostly vertical, small tonnage examination
Machine is tested, and its function is more single, can only carry out the fatigue test operation of single cable.With the continuous developing in bridge field,
Constantly increasing, engineering problem is just increasingly sophisticated, it is necessary to a kind of horizontal, large-tonnage, many rank test machines are carried for experiment work amount
For solution.
Utility model content
The utility model provides a kind of horizontal large-tonnage multistage drag-line fatigue tester, and this testing machine can carry out list
The large-tonnage fatigue test of the large-scale drag-line test specimen of root, can carry out two fatigue tests of small-sized drag-line test specimen again.It is small for two
The experiment of type drag-line can simultaneously be carried out and is independent of each other.
The technical solution of the utility model：
A kind of drag-line fatigue tester, including structural system, dynamical system, measurement and control system；
Structural system includes reinforced concrete frame 1, stretching end girder steel 2, anchored end girder steel 3, connection girder steel 5 and connector
9；
Dynamical system includes two actuator 4；
Measurement and control system includes sensor 11 and measurement and controller 12；
Reinforced concrete frame 1 is arranged on the periphery of drag-line fatigue tester, stretching end girder steel 2 and anchored end girder steel 3 it
Between, protect and stay guy fatigue tester；Two one end of actuator 4 are connected to stretching end girder steel 2, and the other end is by connecting steel
Beam 5 is connected with a large-scale drag-line test specimen 6, or the other end each connects a small-sized drag-line test specimen 10 by connector 9；It is large-scale
Drag-line test specimen 6 is fixed between stretching end girder steel 2 and anchored end girder steel 3 using large-scale dragline anchorage 8, the profit of small-sized drag-line test specimen 10
It is fixed between stretching end girder steel 2 and anchored end girder steel 3 with small-sized dragline anchorage 7；Sensor 11 is arranged on large-scale drag-line test specimen 6
Or on small-sized drag-line test specimen 10, to large-scale drag-line test specimen 6 or small-sized drag-line test specimen 10 with constant pulling force, will by sensor 11
The actual loading information of large-scale drag-line test specimen 6 or small-sized drag-line test specimen 10 is communicated to measurement and controller 12, then by measuring and controlling
Device processed 12 controls and adjusts actuator 4 to large-scale drag-line test specimen 6 or small-sized drag-line test specimen 10 with stress amplitude.
Effect of the present utility model and benefit are：Using this drag-line fatigue tester, single large-scale drag-line can be carried out
Large-tonnage fatigue test, again can replace attachment means after to two small-sized drag-lines simultaneously carry out fatigue test, improve examination
Test efficiency.
Brief description of the drawings
Fig. 1 is single cable experimental rig figure.
Fig. 2 is two drag-line experimental rig figures.
In figure：1 reinforced concrete frame；2 stretching end girder steels；3 anchored end girder steels；4 actuator；
5 connection girder steels；6 large-scale drag-line test specimens；7 small-sized dragline anchorages；8 large-scale dragline anchorages；
9 connectors；10 small-sized drag-line test specimens；11 sensors；12 measurements and controller.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with technical scheme and accompanying drawing.
Reinforced concrete frame 1 includes that two length of a film 12m × 1.4m high × thickness 0.75m, center spacing are the concrete of 3.0m
Component, two sheet elements are made up of C50 concrete, HRB400 reinforcing bars.Reinforced concrete frame 1 is required in the case where huge pressure is born
Large deformation or even unstable phenomenon will not be produced.Stretching end girder steel 2, anchored end girder steel 2, connection girder steel 5, the component such as connector 9 by
Q345 steel is made, it is desirable to can not have Large deflection or even destruction under larger eccentricity pressure effect.Stretching end girder steel 2,
Anchored end girder steel 3 must can not have displacement with reinforced concrete frame 1, foundation electrical connection.
Actuator 4 is two 2500kN microcomputer controlled electro-hydraulic servo actuator.
Measurement and control system force sensor, displacement transducer and measurement and controller 12, measurement and controller are main
In switch board of the element loaded on measurement control operation platform, control operation platform is provided with display screen, operation button etc..The electricity consumption of the machine institute
Gas annex, hydraulic services are finished parts, and connection, fixed bolt, nut are standard component.
Two actuator 4 are by connecting girder steel 5 and one 649Large-scale drag-line test specimen 6 connection tested, it is right
The large-scale dragline anchorage cold cast upset head anchor that specifications and models are LMLPES7-649 is answered, 15031kN is applied by static(al) jack first
Stretching force, secondly actuator 4 apply the cycle pulse load of ± 2652kN.
Treat after the completion of the fatigue test of large-scale drag-line test specimen 6, put large-scale drag-line test specimen 6 and connection girder steel 5 with crane
Small-sized drag-line test specimen 10 and connector 9 are changed to, two electro-hydraulic servo testing machines connect one 139 respectively by connector 9And 151Small-sized drag-line test specimen 10 tested, correspondence LMLPES7-139 and LMLPES7-151 anchorage, thousand
Jin top applies pretension and is respectively 3219kN and 3497kN, and actuator 4 applies impulsive load and is respectively ± 568kN and ± 617kN,
Complete the experiment to small-sized drag-line test specimen 10.
Claims (1)
1. a kind of drag-line fatigue tester, it is characterised in that the drag-line fatigue tester includes structural system, dynamical system, survey
Amount and control system；
Structural system includes reinforced concrete frame (1), stretching end girder steel (2), anchored end girder steel (3), connection girder steel (5) and connects
Fitting (9)；
Dynamical system includes two actuator (4)；
Measurement and control system includes sensor (11) and measurement and controller (12)；
Reinforced concrete frame (1) is arranged on the periphery of drag-line fatigue tester, stretching end girder steel (2) and anchored end girder steel (3)
Between, protect and stay guy fatigue tester；Two actuator (4) one end are connected to stretching end girder steel (2), and the other end passes through
Connection girder steel (5) is connected with a large-scale drag-line test specimen (6), or the other end is by connector (9) each piece small-sized drawing of connection
Rope test specimen (10)；Large-scale drag-line test specimen (6) is fixed on stretching end girder steel (2) and anchored end girder steel using large-scale dragline anchorage (8)
(3) between, small-sized drag-line test specimen (10) is fixed on stretching end girder steel (2) and anchored end girder steel (3) using small-sized dragline anchorage (7)
Between；Sensor (11) is arranged on large-scale drag-line test specimen (6) or small-sized drag-line test specimen (10), to large-scale drag-line test specimen (6) or
Small-sized drag-line test specimen (10) with constant pulling force, by sensor (11) by large-scale drag-line test specimen (6) or small-sized drag-line test specimen
(10) actual loading information is communicated to measurement and controller (12), then by measurement and controller (12) control and adjustment actuator
(4) to large-scale drag-line test specimen (6) or small-sized drag-line test specimen (10) with stress amplitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432052.7U CN206270187U (en) | 2016-12-23 | 2016-12-23 | A kind of drag-line fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432052.7U CN206270187U (en) | 2016-12-23 | 2016-12-23 | A kind of drag-line fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206270187U true CN206270187U (en) | 2017-06-20 |
Family
ID=59047827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432052.7U Expired - Fee Related CN206270187U (en) | 2016-12-23 | 2016-12-23 | A kind of drag-line fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206270187U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769564A (en) * | 2016-12-23 | 2017-05-31 | 大连理工大学 | A kind of drag-line fatigue tester |
| CN107655755A (en) * | 2017-07-25 | 2018-02-02 | 东南大学 | A kind of test method of drag-line cord clip assembly resistant slide bearing capacity |
| CN113218687A (en) * | 2021-04-29 | 2021-08-06 | 西南交通大学 | Cable-stayed bridge cable-beam anchoring structure reduced scale test model loading device and test method thereof |
| CN114047071A (en) * | 2021-11-22 | 2022-02-15 | 中国船舶科学研究中心 | Parallel fatigue test device based on structure test platform |
-
2016
- 2016-12-23 CN CN201621432052.7U patent/CN206270187U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769564A (en) * | 2016-12-23 | 2017-05-31 | 大连理工大学 | A kind of drag-line fatigue tester |
| CN107655755A (en) * | 2017-07-25 | 2018-02-02 | 东南大学 | A kind of test method of drag-line cord clip assembly resistant slide bearing capacity |
| CN107655755B (en) * | 2017-07-25 | 2020-02-18 | 东南大学 | Testing method for anti-sliding bearing capacity of stay cable-cable clamp assembly part |
| CN113218687A (en) * | 2021-04-29 | 2021-08-06 | 西南交通大学 | Cable-stayed bridge cable-beam anchoring structure reduced scale test model loading device and test method thereof |
| CN114047071A (en) * | 2021-11-22 | 2022-02-15 | 中国船舶科学研究中心 | Parallel fatigue test device based on structure test platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170620 Termination date: 20191223 |