CN203849014U - Beam column node stress performance testing device - Google Patents
Beam column node stress performance testing device Download PDFInfo
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- CN203849014U CN203849014U CN201420213295.6U CN201420213295U CN203849014U CN 203849014 U CN203849014 U CN 203849014U CN 201420213295 U CN201420213295 U CN 201420213295U CN 203849014 U CN203849014 U CN 203849014U
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- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 22
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 22
- 238000002474 experimental method Methods 0.000 claims description 21
- 239000000725 suspension Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 5
- 238000011068 loading method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a beam column node stress performance testing device, which comprises a first portal type steel frame, a second portal type steel frame, a third portal type steel frame, a fourth portal type steel frame, a first jack, a second jack, a third jack, a fourth jack and a fifth jack, wherein the first portal type steel frame and the second portal type steel frame are identical in structure and arranged in a front-and-back alignment mode, each of the first portal type steel frame and the second portal type steel frame comprises a cross beam, the middle parts of the cross beams are connected through a steel beam, the first jack is arranged at the middle part of the steel beam and used for applying axial pressure on a test piece column; the third portal type steel frame and the fourth portal type steel frame are identical in structure, each of the third portal type steel frame and the fourth portal type steel frame comprises an upper cross beam and a lower cross beam, the second jack is arranged at the middle part of the upper cross beam of the third portal type steel frame, the third jack is arranged at the middle part of the lower cross beam of the third portal type steel frame, the fourth jack is arranged at the middle part of the upper cross beam of the fourth portal type steel frame, and the fifth jack is arranged at the middle part of the lower cross beam of the fourth portal type steel frame. The device disclosed by the utility model can enable the stress condition of a test piece to be closer to the stress condition of a node in an actual structure, is low in cost and simple to be installed, and can directly measure residual deformation at the beam end of the test piece.
Description
Technical field
The utility model relates to a kind of bean column node Experiment of Mechanical Behavior device, can carry out static(al), pseudo-static experimental to bean column node, is particularly useful for the Experimental Study on Seismic Behavior of the bean column node under bidirectional load effect.
Background technology
Traditional bean column node Experiment of Mechanical Behavior adopts plane to load system implementation, and pillar cannot produce out-of-plane bending, and beam also cannot produce the torsion around himself axis.Though Space Double that what existing bean column node Experiment of Mechanical Behavior adopted is is to the experiment test device under load action, can make the force-bearing situation of test specimen approach the force-bearing situation of node in practical structures, but still there is following shortcoming: (1) apparatus structure complexity, to having relatively high expectations of lifting jack, while requiring its retraction, also can provide larger pulling force; (2) to fix and adjust the process of verticality and levelness more complicated in the installation of test specimen, is difficult to accurately simulation hinged, causes being difficult to ensure levelness and the verticality of test specimen before loading; (3) at beam-ends, rigidity cuff need be set and be connected with universal spherical joint device, cuff and ball pivot device structure are all more complicated, and are difficult to directly measure the residual deformation of test specimen beam-ends.
Therefore, be badly in need of development a kind of install simple, be convenient for measuring beam-ends residual deformation and can be at two major axes orientations bean column node Experiment of Mechanical Behavior device of load applications simultaneously.
Utility model content
For above defect or the Improvement requirement of prior art, the utility model provides a kind of bean column node Experiment of Mechanical Behavior device, convenient levelness and the verticality of adjusting test specimen, can make the force-bearing situation of test specimen more approach the force-bearing situation of node in practical structures, not produce additional deformation constrain; Hydraulic means can all adopt single-acting hydraulic jack, and cost is low, installs simply, can directly measure the residual deformation of test specimen beam-ends.
For achieving the above object, the utility model provides a kind of bean column node Experiment of Mechanical Behavior device, it is characterized in that, comprises first, second, third, fourth portal frame and first, second, third, fourth, the 5th lifting jack, described the first and second door type steel frame structures are identical, and front and back alignment arranges, and includes a crossbeam, and crossbeam middle part connects by girder steel, and described the first lifting jack is arranged on the middle part of described girder steel, for test specimen post is applied to axial pressure, described the third and fourth door type steel frame structure is identical, include, lower two crossbeams, described the second lifting jack is arranged on the entablature middle part of described the 3rd portal frame, for test specimen the first beam-ends is applied to downward power, described the 3rd lifting jack is arranged on the sill middle part of described the 3rd portal frame, for test specimen the first beam-ends is applied to power upwards, described the 4th lifting jack is arranged on the entablature middle part of described the 4th portal frame, for test specimen the second beam-ends is applied to downward power, described the 5th lifting jack is arranged on the sill middle part of described the 4th portal frame, for test specimen the second beam-ends is applied to power upwards.
Preferably, this device also comprises the first cap, the second cap and rigidity level bracing frame; Described the second cap connects one end of described rigidity level bracing frame by hinged-support; When test, the other end of described rigidity level bracing frame connects counter force wall by hinged-support, described the first cap fixes on the ground by hinged-support, described the first and second caps are arranged on respectively suspension column and the capital of test specimen, and described the first lifting jack applies axial pressure by described the second cap to test specimen post.
Preferably, the side of described the first cap is provided with bolt.
Preferably, the bottom of described the first cap is provided with hole.
Preferably, this device also comprises first, second, third, fourth, the 5th load transducer, is separately positioned on described first, second, third, fourth, the 5th lifting jack.
Preferably, the crossbeam height of described first, second, third, fourth portal frame is all adjustable.
In general, the above technical scheme of conceiving by the utility model compared with prior art, has following beneficial effect:
1, adopt respectively upper and lower two lifting jack co-operation at each beam-ends load(ing) point, do not require that on the one hand lifting jack retraction provides pulling force, thereby can use common single-acting hydraulic jack, the harsh requirement that must be able to stretch out very large distance while having avoided using single lifting jack to load to lifting jack, effectively reduces installation cost; On the other hand, avoided, at test specimen beam-ends, rigidity cuff is set and be connected with universal spherical joint device, can directly measure the residual deformation of test specimen beam-ends, apparatus structure is simple, and installation and removal are convenient.
2, the force-bearing situation of test specimen approaches the force-bearing situation of node in practical structures more, does not produce additional deformation constrain.On the one hand, adopt four portal frames and girder steel to form space and load system, test unit to test specimen beam-ends without any additional constraint; On the other hand, at suspension column and the capital of test specimen, a cap is respectively set, convenient fixing is installed, test specimen suspension column and capital are completely hinged, are convenient to the adjustment of test specimen levelness and verticality and without any additional constraint.
Brief description of the drawings
Fig. 1 is the front view of the bean column node Experiment of Mechanical Behavior device of the utility model embodiment;
Fig. 2 is the left view of the bean column node Experiment of Mechanical Behavior device of the utility model embodiment;
Fig. 3 is the principle of work schematic diagram of the bean column node Experiment of Mechanical Behavior device of the utility model embodiment.
In institute's drawings attached, identical Reference numeral is used for representing identical element or structure, wherein: 1-the first portal frame, 2-the second portal frame, 3-the 3rd portal frame, 4-the 4th portal frame, 5-the first lifting jack, 6-the second lifting jack, 7-the 3rd lifting jack, 8-the 4th lifting jack, 9-the 5th lifting jack, 10-rigidity level bracing frame, 11-the first cap, 12-the second cap, 13-the first load transducer, 14-the second load transducer, 15-the 3rd load transducer, 16-the 4th load transducer, 17-the 5th load transducer, 18-counter force wall, 19-test specimen, 20-girder steel.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.In addition,, in each embodiment of described the utility model, involved technical characterictic just can combine mutually as long as do not form each other conflict.
Fig. 1 and Fig. 2 are respectively front view and the left view of the bean column node Experiment of Mechanical Behavior device of the utility model embodiment, for making avatars clear, all have part-structure not shown in two figure.As depicted in figs. 1 and 2, the bean column node Experiment of Mechanical Behavior device of the utility model embodiment comprises: first, second, third, fourth portal frame 1,2,3,4, first, second, third, fourth, the 5th lifting jack 5,6,7,8,9, rigidity level bracing frame 10, first, second cap 11,12, and first, second, third, fourth, the 5th load transducer 13,14,15,16,17.
The first and second portal frames 1 are identical with 2 structures, and front and back alignment arranges, and includes a crossbeam, and crossbeam middle part connects by girder steel 20, and crossbeam height is adjustable.The first lifting jack 5 is arranged on the middle part of girder steel 20, for downward power is provided.
The third and fourth portal frame 3 is identical with 4 structures, includes upper and lower two crossbeams, and crossbeam height is adjustable.The second lifting jack 6 is arranged on the entablature middle part of the 3rd portal frame 3, and for downward power is provided, the 3rd lifting jack 7 is arranged on the sill middle part of the 3rd portal frame 3, for power is upwards provided; The 4th lifting jack 8 is arranged on the entablature middle part of the 4th portal frame 4, and for downward power is provided, the 5th lifting jack 9 is arranged on the sill middle part of the 4th portal frame 4, for power is upwards provided.
First, second, third, fourth, the 5th load transducer 13,14,15,16,17 is separately positioned on first, second, third, fourth, on the 5th lifting jack 5,6,7,8,9, is applied to the size of the power on workpiece for measuring each lifting jack.
The side of the first cap 11 is provided with bolt, for the verticality of the suspension column of fixing test specimen 19 and the post of adjustment test specimen 19; The bottom of the first cap 11 is provided with hole, so that the concrete residue that cleaning falls into.The second cap 12 connects one end of rigidity level bracing frame 10 by hinged-support.
When test, the other end of rigidity level bracing frame 10 connects counter force wall 18, the first caps 11 by hinged-support and is fixed by bolts on ground by hinged-support; The first cap 11 and the second cap 12 are arranged on respectively suspension column and the capital of test specimen, and the first lifting jack 5 applies axial pressure by the second cap 12 to test specimen post; The third and fourth portal frame 3 and 4 is arranged on the both sides of girder steel 20, its crossbeam is parallel with girder steel 20, the second lifting jack 6 is for applying downward power to test specimen the first beam-ends, the 3rd lifting jack 7 is for applying power upwards to test specimen the first beam-ends, the 4th lifting jack 8 is for test specimen the second beam-ends is applied to downward power, and the 5th lifting jack 9 is for applying power upwards to test specimen the second beam-ends.
Preferably, the high 6m of the first and second portal frames, the high 4m of the third and fourth portal frame, the long 5m of girder steel, high 800mm; The first lifting jack is the hydraulic jack of 400 tons, second, third, the 4th and the 5th lifting jack is the hydraulic jack of 100 tons.
Fig. 3 is the principle of work schematic diagram of the bean column node Experiment of Mechanical Behavior device of the utility model embodiment.For making those skilled in the art understand better the utility model, below in conjunction with Fig. 1～3, the principle of work of bean column node Experiment of Mechanical Behavior device of the present utility model is elaborated.
Test specimen 19 is put into the counter force system jointly being formed by portal frame, counter force wall, geosyncline etc. by lifting.The suspension column of test specimen 19 is put into the first cap 11, and capital is installed the second cap 12, tentatively adjusts levelness and the verticality of test specimen.In the first cap 11, insert in the gap between cap and suspension column with the steel plate of certain thickness and certain length and width, by further fastening the filling into the steel plate of the first cap 11 of bolt of the first cap 11 surroundings, make it contact and there is no gap with the cylinder of test specimen 19, prevent the loosening sidesway that produces of suspension column, utilize bolt to squeeze steel plate that filling the comes in verticality with the post of accurate adjustment test specimen 19 simultaneously.Utilize the levelness of the hinged-support accurate adjustment test specimen 19 that the first cap 11 connects.The second cap 12 can effectively prevent the upper styletable generation lateral shift of test specimen 19.
Utilize the first lifting jack 5 to apply constant axial pressure to the second cap 12, the vertical load of node is passed in simulation by superstructure.Mobile the third and fourth portal frame 3 and 4, make second, the 3rd, the 4th, the 5th lifting jack 6, 7, 8, 9 align respectively the beam-ends of test specimen 19, adjust the upper of the third and fourth portal frame 3 and 4, bottom rail depth of beam, make second, the 3rd, the the 4th and the 5th lifting jack 6, 7, 8 and 9 and the beam-ends upper and lower surface of test specimen 19 keep suitable loading distance, make second and the load(ing) point of the first beam-ends of the test specimen 19 of the 3rd lifting jack 6 and 7 correspondences on same pedal line, make the load(ing) point of the second beam-ends of the test specimen 19 of the 4th and the 5th lifting jack 8 and 9 correspondences on same pedal line, to ensure the accuracy of loading position and direction.
At each beam-ends load(ing) point place, utilize second, third, the 4th, the 5th lifting jack 6,7,8,9 realizes the loadings to beam-ends.Wherein, the second lifting jack 6 is connected with the 5th lifting jack 9 use three-way pipes and shares an oil circuit, and the 3rd lifting jack 7 is connected with the 4th lifting jack 8 use three-way pipes and shares an oil circuit, to realize synchronously applying of beam-ends anti-symmetrical load.All lifting jack are all connected with the static servo-hydraulic control desk of high precision.When forward loads, the 3rd lifting jack 7 applies power upwards at the first beam-ends of test specimen 19, and the 4th lifting jack 8 applies downward power at the second beam-ends of test specimen 19; While oppositely loading, the second lifting jack 6 applies downward power at the first beam-ends of test specimen 19, and the 5th lifting jack 9 applies power upwards at the second beam-ends of test specimen 19.Therefore, second, third, the 4th and the 5th lifting jack 6,7,8 and 9 all can use common single-acting hydraulic jack, effectively reduces installation cost, in addition, be connected with universal spherical joint device owing to having avoided, at test specimen beam-ends, rigidity cuff is set, apparatus structure is simple, and installation and removal are convenient.
Load system owing to having adopted four portal frames and girder steel to form space, and the first cap 11 and the second cap 12 all fix by hinge stent, the force-bearing situation of test specimen approaches the force-bearing situation of node in practical structures more, does not produce additional deformation constrain.
First, second, third, fourth and fifth load transducer 13,14,15,16 and 17 is respectively used to measure first, second, third, fourth and fifth lifting jack 5,6,7,8 and 9 and is applied to the size of the power on workpiece 19.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a bean column node Experiment of Mechanical Behavior device, is characterized in that, comprises first, second, third, fourth portal frame and first, second, third, fourth, the 5th lifting jack, described the first and second door type steel frame structures are identical, and front and back alignment arranges, and includes a crossbeam, and crossbeam middle part connects by girder steel, and described the first lifting jack is arranged on the middle part of described girder steel, for test specimen post is applied to axial pressure, described the third and fourth door type steel frame structure is identical, include, lower two crossbeams, described the second lifting jack is arranged on the entablature middle part of described the 3rd portal frame, for test specimen the first beam-ends is applied to downward power, described the 3rd lifting jack is arranged on the sill middle part of described the 3rd portal frame, for test specimen the first beam-ends is applied to power upwards, described the 4th lifting jack is arranged on the entablature middle part of described the 4th portal frame, for test specimen the second beam-ends is applied to downward power, described the 5th lifting jack is arranged on the sill middle part of described the 4th portal frame, for test specimen the second beam-ends is applied to power upwards.
2. bean column node Experiment of Mechanical Behavior device as claimed in claim 1, is characterized in that, also comprises the first cap, the second cap and rigidity level bracing frame; Described the second cap connects one end of described rigidity level bracing frame by hinged-support;
When test, the other end of described rigidity level bracing frame connects counter force wall by hinged-support, described the first cap fixes on the ground by hinged-support, described the first and second caps are arranged on respectively suspension column and the capital of test specimen, and described the first lifting jack applies axial pressure by described the second cap to test specimen post.
3. bean column node Experiment of Mechanical Behavior device as claimed in claim 2, is characterized in that, the side of described the first cap is provided with bolt.
4. bean column node Experiment of Mechanical Behavior device as claimed in claim 2, is characterized in that, the bottom of described the first cap is provided with hole.
5. bean column node Experiment of Mechanical Behavior device as claimed in claim 1, is characterized in that, also comprises first, second, third, fourth, the 5th load transducer, is separately positioned on described first, second, third, fourth, the 5th lifting jack.
6. the bean column node Experiment of Mechanical Behavior device as described in any one in claim 1 to 5, is characterized in that, the crossbeam height of described first, second, third, fourth portal frame is all adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213295.6U CN203849014U (en) | 2014-04-29 | 2014-04-29 | Beam column node stress performance testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213295.6U CN203849014U (en) | 2014-04-29 | 2014-04-29 | Beam column node stress performance testing device |
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| CN203849014U true CN203849014U (en) | 2014-09-24 |
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| CN201420213295.6U Expired - Lifetime CN203849014U (en) | 2014-04-29 | 2014-04-29 | Beam column node stress performance testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677581A (en) * | 2015-02-10 | 2015-06-03 | 西安建筑科技大学 | Loading device and loading-device-based seismic test system for beam-column joint |
| CN106168536A (en) * | 2016-09-29 | 2016-11-30 | 国网河南省电力公司电力科学研究院 | A kind of plane node stress performance test device |
| CN106885745A (en) * | 2017-03-28 | 2017-06-23 | 武汉科技大学 | A kind of bean column node beam-ends loading test device and its method of testing |
| CN110274820A (en) * | 2019-07-29 | 2019-09-24 | 山东建筑大学 | A kind of Vierendeel girder inflection point pseudo-static experimental test piece fixing device |
| CN114061997A (en) * | 2021-10-19 | 2022-02-18 | 南方电网科学研究院有限责任公司 | Power transmission tower section loading test device and method |
-
2014
- 2014-04-29 CN CN201420213295.6U patent/CN203849014U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677581A (en) * | 2015-02-10 | 2015-06-03 | 西安建筑科技大学 | Loading device and loading-device-based seismic test system for beam-column joint |
| CN104677581B (en) * | 2015-02-10 | 2017-03-15 | 西安建筑科技大学 | Charger and the bean column node shock test system based on the charger |
| CN106168536A (en) * | 2016-09-29 | 2016-11-30 | 国网河南省电力公司电力科学研究院 | A kind of plane node stress performance test device |
| CN106168536B (en) * | 2016-09-29 | 2019-03-01 | 国网河南省电力公司电力科学研究院 | A kind of plane node stress performance test device |
| CN106885745A (en) * | 2017-03-28 | 2017-06-23 | 武汉科技大学 | A kind of bean column node beam-ends loading test device and its method of testing |
| CN106885745B (en) * | 2017-03-28 | 2020-03-27 | 武汉科技大学 | Beam column node beam end loading test device and test method thereof |
| CN110274820A (en) * | 2019-07-29 | 2019-09-24 | 山东建筑大学 | A kind of Vierendeel girder inflection point pseudo-static experimental test piece fixing device |
| CN110274820B (en) * | 2019-07-29 | 2024-03-12 | 山东建筑大学 | Test piece fixing device for static test is planned to frame roof beam bending point |
| CN114061997A (en) * | 2021-10-19 | 2022-02-18 | 南方电网科学研究院有限责任公司 | Power transmission tower section loading test device and method |
| CN114061997B (en) * | 2021-10-19 | 2024-05-28 | 南方电网科学研究院有限责任公司 | Power transmission tower section loading test device and method |
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Granted publication date: 20140924 |
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