CN203216811U - A constant axial force self-balancing loading device for nodes with different column sections - Google Patents
A constant axial force self-balancing loading device for nodes with different column sections Download PDFInfo
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- CN203216811U CN203216811U CN 201320129950 CN201320129950U CN203216811U CN 203216811 U CN203216811 U CN 203216811U CN 201320129950 CN201320129950 CN 201320129950 CN 201320129950 U CN201320129950 U CN 201320129950U CN 203216811 U CN203216811 U CN 203216811U
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Abstract
The utility model discloses a constant-axial force self-balancing loading device for nodes at different column sections. The constant-axial force self-balancing device comprises a bottom beam, a bottom spherical hinge, a lower counter-force plate, a lower clamping structure, a beam column node test piece, an upper clamping structure, a hydraulic lifting jack, an upper-end hinge supporting base and an upper counter-force plate, which are sequentially connected from bottom to top, wherein the upper and the lower counter-force plates are connected by a counter-force tension rod; an adjusting bolt is arranged at each of the left side and the right side of each of the upper clamping structure and the lower clamping structure; a steel clamping plate is arranged between the clamping structure and the beam column node test piece. The constant-axial force self-balancing loading device for nodes on different column sections can be self-balanced and used for keeping constant axial pressure, is simple in structure, convenient to dismount, less in needed materials and suitable for a test of hysteretic behavior of the beam column nodes at different column sections under low cyclic load.
Description
Technical field
The utility model relates to the force self-balanced charger of a kind of different column section node constant shaft, belongs to the concrete construction field.
Background technology
In the field of civil engineering, the hysteresis performance of research bean column node is extremely important.In containing the structure of bean column node, node is weak link often, the quality of its hysteresis performance has a significant impact the total anti-seismic performance, and accurately the hysteresis performance of measured node is significant to ductility, deformability and the energy dissipation capacity of estimating bean column node.
Hysteresis performance at the research bean column node mainly adopts pseudo-static experimental at present, styletable applies constant axial by lifting jack, adopt hydraulic jack to apply reciprocal vertical load of low week at beam-ends, vertical load counter-force and horizontal loading counter-force are respectively by vertical load reaction frame and horizontal loading reaction frame,, fail to reach self-equilibrating simultaneously at both direction to reaching self-equilibrating respectively in vertical and level.Loading frequency and the continuity of the reciprocal load that applies by hydraulic jack can not get effective control, apply vertical force by lifting jack on the other hand, because along with node under the effect of vertical load sidesway takes place, lifting jack is because oil return makes the vertical force that applies can not keep constant, and the big test error of generation.
The utility model content
The technical problems to be solved in the utility model is the hysteresis performance at the research bean column node, adopt hydraulic jack to apply reciprocal vertical load of low week at beam-ends, fail to reach simultaneously at both direction the problem of self-equilibrating, and provide a kind of different column section node constant shaft force self-balanced charger.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions.The force self-balanced charger of a kind of different column section node constant shaft, comprise bottom girder, the bottom ball pivot, following reaction plate, last reaction plate, the upper end hinged-support, hydraulic jack, following clamp structure, last clamp structure, the bean column node test specimen, regulate bolt, the steel clamping plate, the counter-force pull bar, bottom ball pivot one end is fixedly mounted on the bottom girder, the other end links to each other with following reaction plate, following clamp structure links to each other with following reaction plate, upper end hinged-support one end links to each other with last reaction plate, the other end links to each other with hydraulic jack, hydraulic jack links to each other with last clamp structure, the bean column node test specimen is by clamp structure and last clamp structure clamping down, following reaction plate is connected by the counter-force pull bar with last reaction plate, be separately installed with the adjusting bolt around following clamp structure and the last clamp structure, between clamp structure and the bean column node test specimen steel clamping plate be installed all around.
Beneficial effect.
1, the utility model proving installation is in loading procedure, the bottom of node post and top all arrange the movable corner bearing, and by screw rod two parts are coupled together, prevent that node deformation process axis power from changing, make node vertical axis power under the cyclic reverse loading distortion still keep constant.
2, the fairly simple convenience of the utility model device, material requested is few, and is easy to operate as long as carry out partial disassembly and assembling, is applicable to the testing experiment of bean column node hysteresis performance under low cycle repetitive load of different column sections.
3, the utility model device is by regulating clamp structure adjusting bolt all around, can be applicable to the bean column node test specimen of different size in the certain limit, avoid in experimentation, causing progress to delay owing to changing clamp structure, applicability is stronger, can avoid the bean column node test specimen eccentric the loading to occur simultaneously effectively in experimentation.
4, the utility model device is controlled the bean column node test specimen by using firm clamping plate, can realize the effective clamping to the bean column node test specimen.
Description of drawings
Fig. 1 is the overall schematic of proving installation.
Fig. 2 is the clamp structure synoptic diagram of proving installation.
Reference numeral is as follows: 1, bottom girder; 2, bottom ball pivot; 3, following reaction plate; 4, go up reaction plate; 5, upper end hinged-support; 6, hydraulic jack; 7, following clamp structure; 8, go up clamp structure; 9, bean column node test specimen; 10, regulate bolt; 11, steel clamping plate; 12, counter-force pull bar; 13, high-strength bolt.
Embodiment
For sake of convenience, hereinafter alleged " left side " " right side " " on " left and right, the upper and lower of D score and accompanying drawing itself is to consistent, but structure of the present utility model do not played the restriction effect.
Below in conjunction with accompanying drawing and embodiment the utility model is done explanation in further detail.
As shown in Figure 1, 2: the force self-balanced charger of a kind of different column section node constant shaft, fixedly connected with ground by the earth anchor bolt in the both sides of bottom girder 1, and bottom ball pivot 2 is adjusted angle and is placed on the bottom girder, fixes with high-strength bolt.To descend reaction plate 3 to fixedly connected with bottom ball pivot 2 with high-strength bolt.Following clamp structure 7 is installed in down on the reaction plate 3 by bolt.Following clamp structure 7 and last clamp structure 8 are shaped as frame, respectively are equipped with two around the clamp structure and regulate bolt 10.Bean column node test specimen 9 is put into down in the clamp structure 7, respectively put into steel clamping plate 11 around between bean column node test specimen 9 and following clamp structure 7, the adjusting bolt 10 by around regulating is fixed on down bean column node test specimen 9 in the clamp structure 7.Last clamp structure 8 is covered top at bean column node test specimen 9, put steel clamping plate 11 around between bean column node test specimen 9 and last clamp structure 8, regulate the gap of clamp structure 8 and bean column node test specimen 9 by regulating bolt 10, bean column node test specimen 9 and last clamp structure 8 are fixed together.Can make the axis of bean column node test specimen 9 consistent with the direction of loading force by regulating bolt 10.Hydraulic jack 6 is put on the clamp structure 8, and hydraulic jack 6 is fixedly linked by high-strength bolt 13 and last clamp structure 8, and the other end of hydraulic jack 6 and upper end hinged-support 5 are fixedly linked.Upper end hinged-support 5 is fixedly linked by high-strength bolt and last reaction plate 4.Have corresponding equally distributed through hole around last reaction plate 4 and the following reaction plate 3, two ends of four counter-force pull bars 12 have screw thread, counter-force pull bar 12 also can be threaded rod, counter-force pull bar 12 links together reaction plate 4 and following reaction plate 3 by nut, and can be adjusted to setting value P to the primitive axis power of bean column node test specimen 9 by setting nut.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129950 CN203216811U (en) | 2013-03-21 | 2013-03-21 | A constant axial force self-balancing loading device for nodes with different column sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129950 CN203216811U (en) | 2013-03-21 | 2013-03-21 | A constant axial force self-balancing loading device for nodes with different column sections |
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| Publication Number | Publication Date |
|---|---|
| CN203216811U true CN203216811U (en) | 2013-09-25 |
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| CN 201320129950 Expired - Lifetime CN203216811U (en) | 2013-03-21 | 2013-03-21 | A constant axial force self-balancing loading device for nodes with different column sections |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207121A (en) * | 2013-03-21 | 2013-07-17 | 河海大学 | Constant-axial-force self-balanced loading device for different column section joints |
| CN103884528A (en) * | 2014-03-20 | 2014-06-25 | 河海大学 | Beam-end loaded plane frame joint pseudo-static test loading device |
| CN104677940A (en) * | 2015-01-30 | 2015-06-03 | 中国矿业大学 | Reinforced concrete shell fire resistance testing system |
| CN104931368A (en) * | 2015-07-02 | 2015-09-23 | 华东交通大学 | Horizontal apparatus for component post seismic test |
| CN105651479A (en) * | 2014-03-07 | 2016-06-08 | 山东建筑大学 | Beam column space joint seismic test device |
| CN105738058A (en) * | 2014-03-07 | 2016-07-06 | 山东建筑大学 | Beam column space node shock resistance test method and beam end restriction device for shock test |
| CN105758603A (en) * | 2014-03-07 | 2016-07-13 | 山东建筑大学 | Beam-column space joint anti-seismic test system |
-
2013
- 2013-03-21 CN CN 201320129950 patent/CN203216811U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207121A (en) * | 2013-03-21 | 2013-07-17 | 河海大学 | Constant-axial-force self-balanced loading device for different column section joints |
| CN103207121B (en) * | 2013-03-21 | 2015-10-21 | 河海大学 | The force self-balanced charger of a kind of different column section node constant shaft |
| CN105651479A (en) * | 2014-03-07 | 2016-06-08 | 山东建筑大学 | Beam column space joint seismic test device |
| CN105738058A (en) * | 2014-03-07 | 2016-07-06 | 山东建筑大学 | Beam column space node shock resistance test method and beam end restriction device for shock test |
| CN105758603A (en) * | 2014-03-07 | 2016-07-13 | 山东建筑大学 | Beam-column space joint anti-seismic test system |
| CN103884528A (en) * | 2014-03-20 | 2014-06-25 | 河海大学 | Beam-end loaded plane frame joint pseudo-static test loading device |
| CN104677940A (en) * | 2015-01-30 | 2015-06-03 | 中国矿业大学 | Reinforced concrete shell fire resistance testing system |
| CN104931368A (en) * | 2015-07-02 | 2015-09-23 | 华东交通大学 | Horizontal apparatus for component post seismic test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |