CN106680090A - Testing device and method for stability bearing capacity of steel angle X-braced panels - Google Patents
Testing device and method for stability bearing capacity of steel angle X-braced panels Download PDFInfo
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- CN106680090A CN106680090A CN201710037619.3A CN201710037619A CN106680090A CN 106680090 A CN106680090 A CN 106680090A CN 201710037619 A CN201710037619 A CN 201710037619A CN 106680090 A CN106680090 A CN 106680090A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
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Abstract
The invention relates to a testing device and method for stability bearing capacity of steel angle X-braced panels. The device comprises a reaction wall (1), a reaction frame and a jack (11), wherein the reaction frame and the reaction wall (1) are fixed on the horizontal ground (22); the reaction frame comprises a stand column (7) and a cross beam (15) fixed on the stand column (7); a servo actuator (3) is fixed on a side surface, which is opposite to the reaction frame, of the reaction wall (1); the servo actuator (3) is arranged horizontally; the jack (11) is vertically placed on the horizontal ground (22); X-braced panel fixing devices are respectively arranged on the cross beam (15), the stand column (7), the reaction wall (1) and the jack (11); and four ends of each X-braced panel can be fixed. According to the testing device for stability bearing capacity of steel angle X-braced panels, the steel angle X-braced panels are subjected to force application testing through the servo actuator (3) and the jack (11), and the numerical value of the bearing capacity of the X-braced panels can be measured quickly. The testing device is high in applicability, convenient to detect and accurate in numerical value.
Description
Technical field
The present invention relates to a kind of test device for multifunctional, and in particular to a kind of that angle steel X-braced panels stability bearing capacity is carried out
The device and test method of experiment.
Background technology
For the freestanding steel structure that realization is born a certain aerial load, communication or other functions and set up is referred to as iron
Tower, iron tower of power transmission line abbreviation electric power pylon or electric power tower, are the space truss structures for supporting, carrying transmission line of electricity
Steel tower, generally includes tower head, tower body and tower leg three parts, is usually made using angle steel, steel plate or steel pipe part, using spiral shell
Tether and connect and be welded to connect combination and be formed by connecting.
Angle steel X-braced panels are the conventional parts of electric power pylon, are also to improve electric power pylon bearing capacity, anti-deformation
Important component, the factor such as rod end bias, rotational restraint makes X-braced panels compression member stable calculation more complicated, but existing
's《Overhead power transmission line pole tower structure-design technique specifies》(DL/T5154-2012) it is reduced to axial compression rod member meter
Calculate, data discrete is larger, and presently used theory is still built upon on the basis of finite element modelling, theory analysis, lack
Corresponding test basis, and it is domestic still without the experimental rig for exclusively carrying out X-braced panels bearing capacity at present.
Therefore, it is badly in need of a kind of simple structure of invention, easy for installation, the iron tower of power transmission line angle steel X-braced panels of highly versatile
Stability bearing capacity experimental rig.
The content of the invention
For the problem that above-mentioned prior art is present, the present invention provides a kind of angle steel X-braced panels stability bearing capacity experiment dress
Put and test method, its simple structure can be easily installed, while also having stronger versatility.
To achieve these goals, angle steel X-braced panels stability bearing capacity experimental rig of the invention includes counter force wall, anti-
Power frame and electric control gear, reaction frame and counter force wall are both secured on level ground；
Described reaction frame includes the crossbeam that column and level are fixed on column；
The counter force wall is fixed with horizontally disposed servo start on the metope of reaction frame by actuator base
Device, servo actuator is built-in with load transducer, and servo actuator is consolidated away from one end of counter force wall with one end of the first T-shaped bearing
Fixed connection, the other end of the first T-shaped bearing is provided with oblique material secure component；
The column is fixed with the 4th T-shaped bearing on the cylinder of counter force wall, and the 4th T-shaped bearing is away from the one of column
End is provided with oblique material secure component；
The 3rd T-shaped bearing is fixed with the bottom surface of the crossbeam, the 3rd T-shaped bearing is provided with oblique material away from one end of crossbeam
Secure component；
The position of the 3rd T-shaped bearing of correspondence is also provided with jack vertically on level ground, and the top of jack is fixed with
Load transducer is additionally provided between second T-shaped bearing, and the top of jack and the second T-shaped bearing, the second T-shaped bearing is away from thousand
The one end on jin top is provided with oblique material secure component；
Described electric control gear includes industrial control computer, load control loop, load backfeed loop and data analysis
Output loop, industrial control computer is electrically connected with the built-in sensors and load transducer of servo actuator respectively.
By changing the direction of the loading force of servo actuator, the position of each T-shaped bearing and the longitudinal direction of crossbeam are adjusted
Position can adapt to the oblique material of various angular cross, various different sizes and specification.Oblique material can be applied by servo actuator
Pressurization and tension, its payload values are obtained automatically by built-in sensors.Compression, its lotus can be applied to oblique material by jack
Load value is obtained automatically by external load transducer, so very easily oblique material pressure-bearing stability can be detected and commented
Estimate.
Scheme as a further improvement on the present invention, described crossbeam is fixedly connected by mobile positioning mechanism with column；
The 3rd described T-shaped bearing is fixedly connected by mobile positioning mechanism with crossbeam；The 4th described T-shaped bearing passes through running fix
Mechanism is fixedly connected with column；The 3rd described T-shaped bearing is fixedly connected by mobile positioning mechanism with crossbeam.
Scheme as a further improvement on the present invention, the column and counter force wall by girt, the solid component of the first bolt,
The solid component of second bolt is fixedly connected.
Scheme, there is the sleeve of a top end opening as a further improvement on the present invention outside the jack, on its outer surface
Be provided with two longitudinal chutes, longitudinal chute is located at the symmetrical both sides of sleeve, and longitudinal chute not insertion sleeve side wall, two are indulged
It is slidably connected with L-type steel plate respectively to chute, L-type steel plate top is fixedly connected with the second T-shaped bearing.
Scheme as a further improvement on the present invention, a support, the branch of the support are fixed in the servo actuator outer surface
Bar is fixedly connected with counter force wall.
The cross section of scheme as a further improvement on the present invention, the column and crossbeam is H types, column and counter-force
The relative one side of wall is evenly arranged with multiple mounting holes under upper, is provided with the sole length direction of the crossbeam and is uniformly distributed
Mounting hole.
Scheme as a further improvement on the present invention, described column also includes two auxiliary struts, auxiliary strut, column
An isosceles triangle is surrounded with the contact point of level ground, the bottom of the isosceles triangle side relative with column with counter force wall
Parallel, two tops of auxiliary strut on isosceles triangle base are connected by a top crossbeam, positioned at isosceles three
The top of the column on angled peak is connected by crossbeam with top crossbeam.
Scheme as a further improvement on the present invention, the bottom of the column fixes a ground and fixes girder steel, and ground is fixed
An inclined skewed horizontal load girder steel is fixed between girder steel and column.
Angle steel X-braced panels stability bearing capacity test method of the invention is comprised the following steps, step one：Angle steel is intersected
Each end of oblique material is fixedly connected with first to fourth T-shaped bearing respectively；
Step 2：Control servo actuator, jack pair angle steel apply pressure, by sensing built-in in servo actuator
Bear load numerical value during pressure in the two ends of device and the load transducer acquisition angle steel X-braced panels being connected with jack；
Step 3：When sensor built-in in servo actuator in step 2 or the load transducer being connected with jack it
When one load numerical value cannot keep stable and on a declining curve, the experiment in step 2 is to stop, the load number for declining at first
Value is the maximum pressure that angle steel X-braced panels can bear；
Step 4：Control servo actuator applies pulling force to the horizontal corner steel in angle steel, in control jack pair angle steel
Vertical angle steel applies pressure, can be obtained by sensor built-in in servo actuator and the load transducer being connected with jack
Angle steel X-braced panels one end load numerical value for bearing when pressure, the other end bear pulling force；
Step 5：Under the load numerical value of the pressure sensor being connected with jack in step 4 cannot keep stabilization and be in
During drop trend, experiment terminates, and writes down corresponding load numerical value, and the load numerical value as angle steel X-braced panels for declining at first to be held
The maximum pressure received.
Quickly and accurately the load situation of angle steel X-braced panels can be tested and analyzed by above step, be entered
And performance that can be exactly to angle steel X-braced panels is made an appraisal；The present invention can be by changing the loading force of servo actuator
The direction stability bearing capacity experiment that to angle steel X-braced panels press-press and draw-press, the servo start being fixed on counter force wall
Device can apply pressure and pulling force, and its payload values is obtained automatically by built-in sensors, and the level jack being positioned on ground is main
There is provided thrust to make angle steel X-braced panels produce pressure, corresponding payload values are obtained by pressure sensor；By girt
Setting, may further ensure that the horizontal rigidity of device, thereby may be ensured that the precision of experiment；By making column and crossbeam
Cross section be disposed as H types, and the column one side relative with counter force wall is evenly arranged with multiple mounting holes, institute under upper
State and equally distributed mounting hole is provided with the sole length direction of crossbeam, can so improve the flexibility of the device, can be used for
The experiment of the angle steel X-braced panels of different model；Adjusted by top girder steel level, vertical direction, so as to improve the device
Versatility；Servo actuator is fixed by support, the fixed effect of end is preferably ensure that, the essence of experiment is thereby may be ensured that
True property；It is fixedly connected with the connection of jack sleeve upper hopper chute and with T-shaped bearing by L-shaped steel plate, so can be further
Ensure experiment accuracy；The device operating process is easy, its applicability is high compared with wide, reliability, and repeatable utilization.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the schematic device with fixed structures such as auxiliary struts.
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is auxiliary strut and top crossbeam position view；
Fig. 5 is jack and sleeve schematic diagram；
Fig. 6 is sleeve schematic diagram；
Fig. 7 is the front view of the second T-shaped bearing；
Fig. 8 is the left view of the second T-shaped bearing；
Fig. 9 is the top view of the second T-shaped bearing；
Figure 10 is bearing front view.
In figure, 1, counter force wall, 2, actuator base, 3, servo actuator, 4, support, the 5, first T-shaped bearing, 6, level draws
Bar, 7, column, 71, auxiliary strut, 8, angle steel X-braced panels, 9, sleeve, 91, longitudinal chute, 10, L-shaped steel plate, 11, jack,
12nd, load transducer, the 13, second T-shaped bearing, the 14, the 3rd T-shaped bearing, 15, crossbeam, the solid component of the 16, first bolt, the 17, the 4th T
Shape bearing, 18, ground fix girder steel, 19, skewed horizontal load girder steel, 20, top fix girder steel, the solid component of the 21, second bolt.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the angle steel X-braced panels stability bearing capacity experimental rig, including counter force wall 1, reaction frame and automatically controlled dress
Put, reaction frame and counter force wall 1 are both secured on level ground.
Reaction frame includes the crossbeam 15 that column 7 and level are fixed on column 7.
The counter force wall 1 is fixed with horizontally disposed servo and makees on the metope of reaction frame by actuator base 2
Dynamic device 3, servo actuator 3 is built-in with load transducer, the one end and the first T-shaped bearing 5 of servo actuator 3 away from counter force wall 1
One end be fixedly connected, the other end of the first T-shaped bearing 5 is provided with oblique material secure component.
The column 7 is fixed with the 4th T-shaped bearing 17 on the cylinder of counter force wall 1, and the 4th T-shaped bearing 17 is away from vertical
One end of post 7 is provided with oblique material secure component.
The 3rd T-shaped bearing 14, the one end of the 3rd T-shaped bearing 14 away from crossbeam 15 are fixed with the bottom surface of the crossbeam 15
It is provided with oblique material secure component.
The position of the 3rd T-shaped bearing 14 of correspondence is also provided with jack 11 vertically on level ground, and the top of jack 11 is consolidated
Surely it is provided between the second T-shaped bearing 13, and the top of jack 11 and the second T-shaped bearing 13 and is additionally provided with load transducer 12, the
Two T-shaped bearings 13 are provided with oblique material secure component away from one end of jack 11.
Described electric control gear includes industrial control computer, load control loop, load backfeed loop and data analysis
Output loop, industrial control computer is electrically connected with the build-in load cell and load transducer 12 of servo actuator 3 respectively.
For the ease of testing the X-braced panels of different intersecting angles, scheme, described as a further improvement on the present invention
Crossbeam 15 can be fixedly connected by bolt with column 7, need to set height of multiple mounting holes for adjusting crossbeam 15 on column 7
Position, crossbeam 15 can also be connected by chute with column 7, and its lengthwise position is fixed by fastener；Likewise, for
The adjustment of the three and the 4th T-shaped bearing also can be used the method to carry out adjustment position.
And the secure component of the head end positioned at all of T-shaped bearing can be the fastener of conventional any structure, it is also possible to
It is hinge hole, is hinged with the end of oblique material using hinge hole.
For the precision of guarantee test, scheme as a further improvement on the present invention, as shown in Fig. 2 to Fig. 9, the column
7 are fixedly connected with counter force wall 1 by girt 6, the solid component 16 of the first bolt, the solid component 21 of the second bolt；By girt 6
Set, may further ensure that the horizontal rigidity of device, thereby may be ensured that the precision of experiment.
Increase stability, the guarantee test of the second T-shaped bearing 13 during in order to stretch and be tested in jack 11
Precision, scheme as a further improvement on the present invention, the sleeve 9 for having a top end opening outside the jack 11, its outer surface
It is provided with two longitudinal chutes 91, longitudinal chute 91 is located at the symmetrical both sides of sleeve 9, and longitudinal not insertion sleeve 9 of chute 91
Side wall, two longitudinal chutes 91 are slidably connected with L-type steel plate 10 respectively, and the top of L-type steel plate 10 is fixed with the second T-shaped bearing 13 and connected
Connect；Second T-shaped bearing 13 can be stabilized on sleeve 9 by L-type steel plate 10 and be slid up and down in the action process of jack 11, while logical
Cross L-shaped steel plate to be fixedly connected with the connection of jack sleeve upper hopper chute and with the second T-shaped bearing, while jack 11 can be made
The compression of generation can vertically upward, further ensure the accuracy of experiment along chute.
In order to ensure the stability of the output loads of servo actuator 3, scheme, described to watch as a further improvement on the present invention
Take the outer surface of actuator 3 and fix a support 4, the pole of the support 4 is fixedly connected with counter force wall 1；Servo actuator 3 passes through support
4 are fixed on counter force wall 1, ensure that the stress of servo actuator 3 produce direction stabilization, will not stress increase and shake
Or the problems such as displacement.
The experiment of the angle steel X-braced panels for the ease of installing and suitable for different model, further changes as of the invention
Enter scheme, the cross section of the column 7 and crossbeam 15 is H types, the one side relative with counter force wall 1 of column 7 under upper
It is even to be provided with multiple mounting holes, it is provided with equally distributed mounting hole on the sole length direction of the crossbeam 15.
In order to increase the resistance to overturning of reaction frame, scheme as a further improvement on the present invention, described column 7 is also wrapped
Two auxiliary struts 71 are included, auxiliary strut 71 surrounds an isosceles triangle, the isosceles with the contact point of column 7, level ground
The bottom of the triangle side relative with column 7 with counter force wall 1 is parallel, two auxiliary struts 71 on isosceles triangle base
Top connected by a top crossbeam 20, the top of the column 7 on isosceles triangle summit is by crossbeam 15 and top
End floor beam 20 is connected；Three root posts are in triangular distribution can improve the stability of reaction frame, it is ensured that test accuracy.
In order to further increase the resistance to overturning of reaction frame, scheme, the column 7 as a further improvement on the present invention
Bottom fix a ground and fix girder steel 18, ground is fixed between girder steel 18 and column 7 and fixes an inclined skewed horizontal load girder steel
19。
By changing the direction of the loading force of servo actuator 3 in process of the test, angle steel X-braced panels 8 can be pressed-pressed
Tested with the stability bearing capacity drawn-press, the servo actuator 3 being fixed on counter force wall 1 can apply pressure and pulling force, its payload values
Obtained automatically by built-in sensors, the level jack 11 being positioned in the jack sleeve 9 on ground mainly provides thrust and comes
Angle steel X-braced panels are made to produce pressure, corresponding payload values are obtained by pressure sensor；The device operating process is easy, it is fitted
It is high compared with wide, reliability with property, and repeatable utilization.
When being tested using the device, step one：By each end of angle steel X-braced panels 8 respectively with first to fourth T-shaped
Bearing 5,13,14,17 is fixedly connected；
Step 2：Control servo actuator 3, jack 11 apply pressure to angle steel 8, by built-in in servo actuator 3
Sensor and the load transducer 12 that is connected with jack 11 obtain lotus when pressure is born at the two ends of angle steel X-braced panels 8
Carry numerical value；
Step 3：When sensor built-in in servo actuator 3 in step 2 or the load being connected with jack 11 sensing
When the load numerical value of one of device 12 cannot keep stable and on a declining curve, the experiment in step 2 is to stop, and is declined at first
Load numerical value is the maximum pressure that angle steel X-braced panels 8 can bear；
Step 4：Control servo actuator 3 applies pulling force to the horizontal corner steel in angle steel 8, and control jack 11 is to angle steel 8
In vertical angle steel apply pressure, by sensor built-in in servo actuator 3 and the load being connected with jack 11 sensing
Device 12 can obtain the load numerical value that one end of angle steel X-braced panels 8 is born when pressure, the other end bear pulling force；
Step 5：When the load numerical value of the pressure sensor 12 being connected with jack 11 in step 4 cannot keep stabilization and
When on a declining curve, experiment terminates, and writes down corresponding load numerical value, the load numerical value for declining at first as angle steel X-braced panels 8
The maximum pressure that can bear.
So can quickly obtain the numerical value of angle steel X-braced panels bearing capacity, the stability of quick analytical structure, user
Just, it is practical.
Claims (9)
1. a kind of angle steel X-braced panels stability bearing capacity experimental rig, including counter force wall (1), reaction frame and electric control gear, counter-force
Frame and counter force wall (1) are both secured on level ground；Characterized in that,
Described reaction frame includes the crossbeam (15) that column (7) and level are fixed on column (7)；
The counter force wall (1) is fixed with horizontally disposed servo and makees on the metope of reaction frame by actuator base (2)
Dynamic device (3), servo actuator (3) is built-in with load transducer, the one end and a T of servo actuator (3) away from counter force wall (1)
One end of type bearing (5) is fixedly connected, and the other end of the first T-shaped bearing (5) is provided with oblique material secure component；
The column (7) is fixed with the 4th T-shaped bearing (17) on the cylinder of counter force wall (1), and the 4th T-shaped bearing (17) is remote
Oblique material secure component is provided with from one end of column (7)；
The 3rd T-shaped bearing (14) is fixed with the bottom surface of the crossbeam (15), the 3rd T-shaped bearing (14) is away from crossbeam (15)
One end is provided with oblique material secure component；
The position of the 3rd T-shaped bearing (14) of correspondence is also provided with jack (11), the top of jack (11) vertically on level ground
It is fixed between the second T-shaped bearing (13), and the top of jack (11) and the second T-shaped bearing (13) and is additionally provided with load sensing
Device (12), the second T-shaped bearing (13) is provided with oblique material secure component away from one end of jack (11)；
Described electric control gear includes industrial control computer, load control loop, load backfeed loop and data analysis output
Loop, industrial control computer is electrically connected with the built-in sensors and load transducer (12) of servo actuator (3) respectively.
2. angle steel X-braced panels stability bearing capacity experimental rig according to claim 1, it is characterised in that described crossbeam
(15) it is fixedly connected with column (7) by mobile positioning mechanism；The 3rd described T-shaped bearing (14) by mobile positioning mechanism with
Crossbeam (15) is fixedly connected；The 4th described T-shaped bearing (17) is fixedly connected by mobile positioning mechanism with column (7)；It is described
The 3rd T-shaped bearing (14) be fixedly connected with crossbeam (15) by mobile positioning mechanism.
3. angle steel X-braced panels stability bearing capacity experimental rig according to claim 1, it is characterised in that described column
(7) it is fixedly connected by girt (6), the solid component (16) of the first bolt, the solid component (21) of the second bolt with counter force wall (1).
4. a kind of angle steel X-braced panels stability bearing capacity experimental rig according to claim 1, it is characterised in that described
There is the sleeve (9) of a top end opening outside jack (11), its outer surface is provided with two longitudinal chutes (91), longitudinal chute (91)
Positioned at the symmetrical both sides of sleeve (9), and longitudinal chute (91) not insertion sleeve (9) side wall, two longitudinal chutes (91) are respectively
It is slidably connected with L-type steel plate (10), L-type steel plate (10) top is fixedly connected with the second T-shaped bearing (13).
5. the angle steel X-braced panels stability bearing capacity experimental rig according to any one of Claims 1-4, it is characterised in that
A support (4) is fixed in described servo actuator (3) outer surface, and the pole of the support (4) is fixedly connected with counter force wall (1).
6. angle steel X-braced panels stability bearing capacity experimental rig according to claim 5, it is characterised in that described column
(7) and the cross section of crossbeam (15) is H types, column (7) one side relative with counter force wall (1) is evenly arranged with upper
Multiple mounting holes, equally distributed mounting hole is provided with the sole length direction of the crossbeam (15).
7. angle steel X-braced panels stability bearing capacity experimental rig according to claim 6, it is characterised in that described column
(7) two auxiliary struts (71) are also included, auxiliary strut (71), column (7) surround one with the contact point of level ground (22)
Isosceles triangle, the side that the bottom of the isosceles triangle is relative with column (7) with counter force wall (1) is parallel, positioned at isosceles triangle
Two tops of auxiliary strut (71) on base are connected by a top crossbeam (20), on isosceles triangle summit
The top of column (7) is connected by crossbeam (15) with top crossbeam (20).
8. angle steel X-braced panels stability bearing capacity experimental rig according to claim 7, it is characterised in that described column
(7) bottom fixes a ground and fixes girder steel (18), and it is inclined oblique to fix one between ground fixation girder steel (18) and column (7)
Support steel beam (19).
9. a kind of test method of angle steel X-braced panels stability bearing capacity experimental rig, it is characterised in that comprise the following steps：
Step one：Each end of angle steel X-braced panels (8) is solid with first to fourth T-shaped bearing (5), (13), (14), (17) respectively
Fixed connection；
Step 2：Control servo actuator (3), jack (11) apply pressure to angle steel (8), by servo actuator (3)
Bear at the two ends that built-in sensor and the load transducer (12) being connected with jack (11) obtain angle steel X-braced panels (8)
Load numerical value during pressure；
Step 3：When sensor built-in in servo actuator (3) in step 2 or the load being connected with jack (11) sensing
When the load numerical value of one of device (12) cannot keep stable and on a declining curve, the experiment in step 2 is to stop, and is declined at first
Load numerical value be the maximum pressure that angle steel X-braced panels (8) can bear；
Step 4：Control servo actuator (3) applies pulling force to the horizontal corner steel in angle steel (8), and control jack (11) is diagonal
Vertical angle steel in steel (8) applies pressure, is connected by sensor built-in in servo actuator (3) and with jack (11)
Load transducer (12) can obtain the load number that one end of angle steel X-braced panels (8) is born when pressure, the other end bear pulling force
Value；
Step 5：When the load numerical value of the pressure sensor (12) being connected with jack (11) in step 4 cannot keep stabilization and
When on a declining curve, experiment terminates, and writes down corresponding load numerical value, the load numerical value for declining at first as angle steel X-braced panels
(8) maximum pressure that can bear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037619.3A CN106680090B (en) | 2017-01-19 | 2017-01-19 | Testing device and testing method for stable bearing capacity of angle steel crossed diagonal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037619.3A CN106680090B (en) | 2017-01-19 | 2017-01-19 | Testing device and testing method for stable bearing capacity of angle steel crossed diagonal material |
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| CN106680090B CN106680090B (en) | 2023-04-07 |
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| CN107238535A (en) * | 2017-08-02 | 2017-10-10 | 中国地震局工程力学研究所 | Hydraulic jack and electro-hydraulic servo actuator combination loading method |
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| CN108627400A (en) * | 2018-04-17 | 2018-10-09 | 国网山西省电力公司电力科学研究院 | A kind of angle steel X-braced panels stability bearing capacity experimental rig and method |
| CN109297805A (en) * | 2018-09-03 | 2019-02-01 | 舟山启明电力设计院有限公司 | Horizontal testing device for single-section crossed oblique material |
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| CN113970431A (en) * | 2021-10-22 | 2022-01-25 | 中国铁道科学研究院集团有限公司标准计量研究所 | Multichannel contact net spare part fatigue test device |
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