CN201348545Y - Angle steel member compression bearing capacity test loading device - Google Patents
Angle steel member compression bearing capacity test loading device Download PDFInfo
- Publication number
- CN201348545Y CN201348545Y CNU2008201231906U CN200820123190U CN201348545Y CN 201348545 Y CN201348545 Y CN 201348545Y CN U2008201231906 U CNU2008201231906 U CN U2008201231906U CN 200820123190 U CN200820123190 U CN 200820123190U CN 201348545 Y CN201348545 Y CN 201348545Y
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- briquetting
- bulb
- screw mandrel
- angle iron
- iron component
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- 230000006835 compression Effects 0.000 title claims abstract description 39
- 238000007906 compression Methods 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 title abstract description 11
- 239000010959 steel Substances 0.000 title abstract description 11
- 229910000746 Structural steel Inorganic materials 0.000 claims description 34
- 238000004088 simulation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model provides an angle steel member compression bearing capacity test loading device, which solves the constraint problems of angle steel with various cross-sections and the loading device through clamps at the two ends of a constraint device on the one hand, wherein pressing blocks are of movable pieces, and the shape of the pressing block can be determined by the shape of the cross-section of a member. The loading device can solve the problems that the prior member compression bearing capacity test loading device can not realize the compression and the simulation of various end part constraints of the angle steel with various cross-sections, and achieve the purposes that the loading device has simple structure, clear force transfer, accurate load application, convenient assembly and disassembly of members.
Description
Technical field
The utility model relates to a kind of charger of realizing compression bearing test of angle iron component, can realize that especially the pressurized tests of electric power pylon angle iron component loads, and belongs to iron tower of power transmission line design and research field.
Background technology
At present, electric power pylon mostly adopts angle steel design, and the charger of electric power pylon compression member bearingtest all is made up of loader, test heavy frame, restraint device three parts basically.With the physical constraint condition of restraint device simulation test member, realize the stress deformation situation of member under the particular constraints condition by charger.General charger is applicable to the cross section of remaining silent (circle, rectangle etc.) member, is difficult for realizing that the compression bearing of opening section (angle steel etc.) member loads.
In addition, general charger often can only be realized the loading of the axial compression situation of member, and is difficult to realize for the loading that realizes the eccentric end axial compression situation of a member two ends eccentric compression and an end.Figure 1A-1D is a member pressurized charger synoptic diagram (loader is identical with charger of the present utility model with test heavy frame part) commonly used at present, wherein Figure 1A is the enlarged drawing of last edge of a knife end, Figure 1B is the enlarged drawing of edge of a knife groove, Fig. 1 C is the enlarged drawing of following edge of a knife end, Fig. 1 D is the overall diagram of edge of a knife hinge charger, the restrained end of this device is made up of last edge of a knife end, edge of a knife groove and following edge of a knife end, and the center of following edge of a knife end overlaps with the member section centre of form.This device can realize that the member axial compression loads, but the position, center of edge of a knife end is fixed down, can't realize that the eccentric compression of member loads.
The utility model content
Can not realize the problem of various section angle iron pressurizeds and the multiple end restraint of simulation in order to solve existing member pressurized tests charger, realize that charger is simple in structure, power transmission is clear, and load application is accurate, the purpose of member easy installation and removal.
The utility model realizes that the technical scheme that above technical requirement is adopted is: designed a cover restraint device, be the restricted problem of solution and various section angle iron on the one hand, mainly realize by the anchor clamps at restraint device two ends, wherein briquetting is a movable part, and its shape can be determined flexibly according to the cross sectional shape of member.
According to load unit for compression bearing test of angle iron component of the present utility model, comprise loader, test heavy frame and restraint device, it is characterized in that: described loader comprises reaction frame, hydropress and force transducer, described restraint device is divided into laterally zygomorphic two parts, comprise top restraint device and lower constraint device, described top restraint device comprises top bulb, top bulb groove, top base, top screw mandrel, top feed screw nut, top briquetting and top clamp, and described top bulb links to each other with force transducer;
Described lower constraint device comprises bottom ball cup, bottom bulb groove, bottom base, bottom screw mandrel, bottom screw mandrel mother, bottom briquetting and bottom jig, and described bottom ball cup connects bottom support;
Described top restraint device is followed successively by from top to bottom: described top bulb places described top bulb groove, described top bulb groove is fixedly connected on described top base, described top screw mandrel, top feed screw nut, top briquetting and top clamp are set on the same surface level of described top base, described top feed screw nut connects described top screw mandrel, described top screw mandrel withstands described top briquetting, leaves the slit that is used to clamp member between described top briquetting and the described top clamp.
Described lower constraint device is followed successively by from top to bottom: described bottom screw mandrel, bottom screw mandrel mother, bottom briquetting and bottom jig all place on the described bottom base, the female bottom screw mandrel that connects of described bottom screw mandrel, described bottom screw mandrel withstands described bottom briquetting, leave the slit that is used to clamp member between described bottom briquetting and the bottom jig, described bottom bulb groove is fixedly connected on the below of described bottom base, and the bottom bulb of described bottom ball cup places bottom bulb groove;
The two ends of angle iron component to be tested are placed the anchor clamps and the place, the slit between the briquetting of described top restraint device and lower constraint device respectively, top briquetting and bottom briquetting are movable part, and by the difform briquetting of placement, thereby the constraint of the angle iron component of realization and various cross sectional shapes.
The change of angle iron component pressurized load(ing) point to be measured is realized in the position of the bulb groove by adjusting described restraint device, and according to the position of load(ing) point a plurality of described top bulb grooves and a plurality of described bottoms bulb groove is set.
Be to solve determining and connectivity problem of angle steel load(ing) point on the other hand, realize by the position of adjusting restraint device end bulb groove, can a plurality of tops bulb groove and bottom bulb groove be set according to the load(ing) point position during enforcement, also can move the position of welding groove, the method for direct mobile groove location is simple.
The utility model provides a kind of experiment loading unit of realizing simulating multiple rod end confining part pressurized, and this device can not only realize that the axial compression of member loads, and can also realize that the two ends eccentric compression of member loads and the eccentric end axial compression loading of an end.
The beneficial effects of the utility model are:
One) restricted problem of solution and various section angle iron realizes by the anchor clamps at restraint device two ends.The bulb at restraint device two ends and groove constitute ball pivot, can accurately simulate the hinged constraint at member two ends.
Two) not only can realize the loading of angle iron component axial compression situation, can also realize the simulation loading of the eccentric end axial compression situation of an angle iron component two ends eccentric compression and an end, simple in structure, power transmission is clear, and load application is accurate, the member easy installation and removal.
Description of drawings
Figure 1A-1D is the edge of a knife hinge charger of the charger of prior art, and wherein Figure 1A is the enlarged drawing of last edge of a knife end; Figure 1B is the enlarged drawing of edge of a knife groove; Fig. 1 C is the enlarged drawing of following edge of a knife end; Fig. 1 D is the overall diagram of edge of a knife hinge charger.
Fig. 2 is an embodiment synoptic diagram according to load unit for compression bearing test of angle iron component of the present utility model;
Fig. 3 is the structural map according to the top restraint device of load unit for compression bearing test of angle iron component of the present utility model;
Fig. 4 is the structural map according to the bottom restraint device of load unit for compression bearing test of angle iron component of the present utility model;
Fig. 5 is the bottom bulb structural map according to load unit for compression bearing test of angle iron component of the present utility model.
Reference numeral: 1, go up edge of a knife end; 2, edge of a knife groove; 3, following edge of a knife end; 4, reaction frame; 5, hydropress; 6, force transducer; 7, top bulb; 8, top clamp; 9, top bulb groove; 10, member; 11, bottom bulb groove; 12, bottom jig; 13, bottom ball cup; 14, bottom support; 15, top base; 16, top screw mandrel; 17, top feed screw nut; 18, top briquetting; 19, bottom screw mandrel; 20, bottom screw mandrel mother; 21, bottom briquetting; 22, bottom base; 23, bottom bulb.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
In Fig. 2, embodiment is the synoptic diagram of the situation of simulation angle iron component pressurized loading.Hydropress shown in Figure 2, sensor, bulb, ball cup are on the same plumb line, and Fig. 5 is the structural map of bottom ball cup.The two ends of angle iron component to be measured are respectively installed on Fig. 3 and the top clamp and bottom jig shown in Figure 4.
Load unit for compression bearing test of angle iron component of the present utility model comprises loader, test heavy frame and restraint device, described loader comprises reaction frame 4, hydropress 5 and force transducer 6, described restraint device is divided into laterally zygomorphic two parts, comprise top restraint device and lower constraint device, described top restraint device comprises top bulb 7, top bulb groove 9, top base 15, top screw mandrel 16, top feed screw nut 17, top briquetting 18 and top clamp 8, and described top bulb 7 links to each other with force transducer 6; Described lower constraint device comprises bottom ball cup 13, bottom bulb groove 11, bottom base 22, bottom screw mandrel 19, bottom screw mandrel mother 20, bottom briquetting 21 and bottom jig 12, and described bottom ball cup 13 connects bottom support 14.
Described top restraint device is followed successively by from top to bottom: described top bulb 7 places described top bulb groove 9, described top bulb groove 9 is fixedly connected on described top base 15, described top screw mandrel 16, top feed screw nut 17, top briquetting 18 and top clamp 8 are set on the same surface level of described top base 15, described top feed screw nut 17 connects described top screw mandrel 16, described top screw mandrel 16 withstands described top briquetting 18, leaves the slit that is used to clamp member 10 between described top briquetting 18 and the described top clamp 8.
Described lower constraint device is followed successively by from top to bottom: described bottom screw mandrel 19, bottom screw mandrel mother 20, bottom briquetting 21 and bottom jig 12 all place on the described bottom base 22, described bottom screw mandrel female 20 connects bottom screw mandrel 19, described bottom screw mandrel 19 withstands described bottom briquetting 21, leave the slit that is used to clamp member 10 between described bottom briquetting 21 and the bottom jig 12, described bottom bulb groove 11 is fixedly connected on the below of described bottom base 22, and the bottom bulb 23 of described bottom ball cup 13 places bottom bulb groove 11.
The two ends of angle iron component to be tested 10 are placed the anchor clamps and the place, the slit between the briquetting of described top restraint device and lower constraint device respectively, top briquetting 18 and bottom briquetting 21 are movable part, and by the difform briquetting of placement, thereby the constraint of the angle iron component 10 of realization and various cross sectional shapes.
The change of angle iron component pressurized load(ing) point to be measured is realized in the position of the bulb groove by adjusting described restraint device, and according to the position of load(ing) point a plurality of described top bulb grooves 9 and a plurality of described bottoms bulb groove 11 is set.
During installation, by rotation top screw mandrel with the bottom screw mandrel makes top briquetting and bottom briquetting that the angle steel two ends are compressed respectively and fixing.The axial compression of angle iron component and eccentric compression are realized by the position of adjusting top bulb groove and bottom bulb groove.Bottom bulb groove is overlapped with the cross section centre of form of angle steel and be fixed on the bottom jig base, the ball cup on the base places bottom groove, and bottom bulb groove and bottom ball cup constitute a ball pivot.Equally, top bulb groove overlaps with the cross section centre of form of angle steel and the top bulb is placed top groove, and top bulb and top bulb groove also constitute a ball pivot, and the top bulb links to each other with hydropress by sensor.The member two ends are placed to respectively on top clamp and the bottom jig, load, guaranteed that component ends only bears axle pressure, has realized the axial compression of member by hydropress.
The charger of the eccentric end axial compression of an angle iron component two ends eccentric compression and an end, its ingredient is identical with the axial compression situation, and difference just is according to the load(ing) point position a plurality of tops bulb groove and bottom bulb groove to be set.Also can move the position of welding groove, the method for direct mobile groove location is simple.
At the eccentric loading end of member, the bulb groove is overlapped with the cross section eccentric position of angle steel and be fixed on the clamp base, then bulb is placed the bulb groove; The connected mode of axle center loading end is identical with two ends axial compression load condition.
Wherein ball cup is connected with the bottom support bolt, and top bulb groove and bottom bulb groove are welded on respectively on top base and the bottom base, and ball joint head is placed in the bulb groove.
Adopt the utility model to carry out the test findings of compression bearing test of angle iron component and see the following form with the contrast situation of theoretical analysis value:
| The member specification | Restraint condition | Slenderness ratio | Test bearing capacity (kN) | Theoretical bearing capacity (kN) |
| L70×70×5 | The axle center, two ends | 70 | 193.47 | 183.42 |
| L70×70×5 | One end axle center, one end off-centre | 120 | 77.92 | 74.61 |
| L70×70×5 | Two ends off-centre | 100 | 73.06 | 71.41 |
Comparing result shows, the test bearing capacity is approaching with calculated value, and employing the utility model carries out that compression bearing test can satisfy request for utilization under the various boundary conditions of angle iron component.
The utility model has been described according to preferred embodiment.Obviously, reading and understanding above-mentioned detailed description postscript and can make multiple correction and replacement.What the utility model was intended to is that the application is built into all these corrections and the replacement that has comprised within the scope that falls into the appended claims or its equivalent.
Claims (5)
1, a kind of load unit for compression bearing test of angle iron component, comprise loader, test heavy frame and restraint device, it is characterized in that: described loader comprises reaction frame (4), hydropress (5) and force transducer (6), described restraint device is divided into laterally zygomorphic two parts, comprise top restraint device and lower constraint device, described top restraint device comprises top bulb (7), top bulb groove (9), top base (15), top screw mandrel (16), top feed screw nut (17), top briquetting (18) and top clamp (8), described top bulb (7) links to each other with force transducer (6);
Described lower constraint device comprises bottom ball cup (13), bottom bulb groove (11), bottom base (22), bottom screw mandrel (19), bottom screw mandrel mother (20), bottom briquetting (21) and bottom jig (12), and described bottom ball cup (13) connects bottom support (14).
2, load unit for compression bearing test of angle iron component as claimed in claim 1, it is characterized in that described top restraint device is followed successively by from top to bottom: described top bulb (7) places described top bulb groove (9), described top bulb groove (9) is fixedly connected on described top base (15), described top screw mandrel (16) is set on the same surface level of described top base (15), top feed screw nut (17), top briquetting (18) and top clamp (8), described top feed screw nut (17) connects described top screw mandrel (16), described top screw mandrel (16) withstands described top briquetting (18), leaves the slit that is used to clamp member (10) between described top briquetting (18) and the described top clamp (8).
3, load unit for compression bearing test of angle iron component as claimed in claim 1, it is characterized in that described lower constraint device is followed successively by from top to bottom: described bottom screw mandrel (19), bottom screw mandrel mother (20), bottom briquetting (21) and bottom jig (12) all place on the described bottom base (22), described bottom screw mandrel mother (20) connects bottom screw mandrel (19), described bottom screw mandrel (19) withstands described bottom briquetting (21), leave the slit that is used to clamp member (10) between described bottom briquetting (21) and the bottom jig (12), described bottom bulb groove (11) is fixedly connected on the below of described bottom base (22), and the bottom bulb (23) of described bottom ball cup (13) places bottom bulb groove (11).
4, as claim 2 or 3 described load unit for compression bearing test of angle iron component, it is characterized in that placing the anchor clamps of described top restraint device and lower constraint device and the slit between the briquetting to locate respectively at the two ends of angle iron component to be tested (10), top briquetting (18) and bottom briquetting (21) are movable part, and by the difform briquetting of placement, thereby the constraint of the angle iron component (10) of realization and various cross sectional shapes.
5, as the arbitrary described load unit for compression bearing test of angle iron component of claim 1-3, the change of angle iron component pressurized load(ing) point to be measured is realized in the position that it is characterized in that the bulb groove by adjusting described restraint device, and according to the position of load(ing) point a plurality of described top bulb grooves (9) and a plurality of described bottom bulb grooves (11) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201231906U CN201348545Y (en) | 2008-10-27 | 2008-10-27 | Angle steel member compression bearing capacity test loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201231906U CN201348545Y (en) | 2008-10-27 | 2008-10-27 | Angle steel member compression bearing capacity test loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348545Y true CN201348545Y (en) | 2009-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201231906U Expired - Lifetime CN201348545Y (en) | 2008-10-27 | 2008-10-27 | Angle steel member compression bearing capacity test loading device |
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| Country | Link |
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| CN (1) | CN201348545Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115759A (en) * | 2013-01-14 | 2013-05-22 | 合肥工业大学 | Special component applied on test specimen bottom for simulating clamped boundary axial load |
| CN106475587A (en) * | 2016-12-13 | 2017-03-08 | 成都庆合科技有限公司 | Rig and equipments machining die |
| CN109632467A (en) * | 2019-01-08 | 2019-04-16 | 哈尔滨工业大学（威海） | One kind being suitable for different size rectangular steel pipe pressurized tests assembled double-pole hinged-supports |
| CN114749305A (en) * | 2022-04-25 | 2022-07-15 | 贵州电网有限责任公司 | Derusting and spraying rotary worktable and positioning and calibrating method |
-
2008
- 2008-10-27 CN CNU2008201231906U patent/CN201348545Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115759A (en) * | 2013-01-14 | 2013-05-22 | 合肥工业大学 | Special component applied on test specimen bottom for simulating clamped boundary axial load |
| CN103115759B (en) * | 2013-01-14 | 2015-06-24 | 合肥工业大学 | Special component applied on test specimen bottom for simulating clamped boundary axial load |
| CN106475587A (en) * | 2016-12-13 | 2017-03-08 | 成都庆合科技有限公司 | Rig and equipments machining die |
| CN109632467A (en) * | 2019-01-08 | 2019-04-16 | 哈尔滨工业大学（威海） | One kind being suitable for different size rectangular steel pipe pressurized tests assembled double-pole hinged-supports |
| CN109632467B (en) * | 2019-01-08 | 2021-06-15 | 哈尔滨工业大学（威海） | Assembled double-cutter hinged support suitable for compression tests of rectangular steel pipes of different sizes |
| CN114749305A (en) * | 2022-04-25 | 2022-07-15 | 贵州电网有限责任公司 | Derusting and spraying rotary worktable and positioning and calibrating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140307 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140307 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 China Electric Power Research Institute of the Ministry of science and technology Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |