CN103207121A - Constant-axial-force self-balanced loading device for different column section joints - Google Patents
Constant-axial-force self-balanced loading device for different column section joints Download PDFInfo
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- CN103207121A CN103207121A CN2013100910074A CN201310091007A CN103207121A CN 103207121 A CN103207121 A CN 103207121A CN 2013100910074 A CN2013100910074 A CN 2013100910074A CN 201310091007 A CN201310091007 A CN 201310091007A CN 103207121 A CN103207121 A CN 103207121A
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Abstract
The invention discloses a constant-axial-force self-balanced loading device for different column section joints. The constant-axial-force self-balanced loading device comprises a bottom beam, a bottom spherical hinge, a lower reaction plate, a lower clamping structure, a beam-column joint test piece, an upper clamping structure, a hydraulic jack, an upper-end hinge support and an upper reaction plate which are sequentially connected with one another from bottom to top. The upper reaction plate is connected with the lower reaction plate by reaction draw bars, adjusting bolts are respectively mounted on the left side and the right side of the upper clamping structure and the left side and the right side of the lower clamping structure, and steel clamp plates are mounted among the clamping structures and the column-beam joint test piece. The constant-axial-force self-balanced loading device has the advantages that the device can be self-balanced in a test procedure, the axial pressure keeps constant in the test procedure, and the device is simple in structure, convenient to detach, low in material consumption and applicable to tests for hysteretic behavior of the different column section beam-column joints under the condition of low-cycle repetitive load.
Description
Technical field
The present invention relates to the force self-balanced charger of a kind of different column section node constant shaft, belong 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.
Summary of the invention
The technical problem to be solved in the present invention 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 present invention 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, proving installation of the present invention 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 apparatus of the present invention, 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, apparatus of the present invention are 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, apparatus of the present invention are 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 of the present invention.
Fig. 2 is the clamp structure synoptic diagram figure of proving installation of the present invention.
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 invention do not played the restriction effect.
Below in conjunction with accompanying drawing and embodiment the present invention 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)
1. force self-balanced charger of different column section node constant shaft, it is characterized in that: comprise bottom girder (1), bottom ball pivot (2), following reaction plate (3), last reaction plate (4), upper end hinged-support (5), hydraulic jack (6), following clamp structure (7), last clamp structure (8), bean column node test specimen (9), regulate bolt (10), steel clamping plate (11), counter-force pull bar (12), bottom ball pivot (2) one ends are fixedly mounted on the bottom girder (1), the other end links to each other with following reaction plate (3), following clamp structure (7) links to each other with following reaction plate (3), upper end hinged-support (5) one ends link to each other with last reaction plate (4), the other end links to each other with hydraulic jack (6), hydraulic jack (6) links to each other with last clamp structure (8), bean column node test specimen (9) is descended clamp structure (7) and last clamp structure (8) clamping, following reaction plate (3) is connected by four counter-force pull bars (12) with last reaction plate (4), be separately installed with around following clamp structure (7) and the last clamp structure (8) and regulate bolt (10), be separately installed with steel clamping plate (11) around between last clamp structure (8) and the bean column node test specimen (9), be separately installed with steel clamping plate (11) between following clamp structure (7) and the bean column node test specimen (9) all around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091007.4A CN103207121B (en) | 2013-03-21 | 2013-03-21 | The force self-balanced charger of a kind of different column section node constant shaft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310091007.4A CN103207121B (en) | 2013-03-21 | 2013-03-21 | The force self-balanced charger of a kind of different column section node constant shaft |
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| CN103207121A true CN103207121A (en) | 2013-07-17 |
| CN103207121B CN103207121B (en) | 2015-10-21 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604621A (en) * | 2013-11-27 | 2014-02-26 | 天津大学 | Loading device for test space structure node hysteretic performance |
| CN103712858A (en) * | 2014-01-01 | 2014-04-09 | 浙江建设职业技术学院 | Spiral type loading positioning device for column |
| CN104729936A (en) * | 2015-04-13 | 2015-06-24 | 南通理工学院 | Multifunctional fatigue testing machine |
| CN106124179A (en) * | 2016-07-18 | 2016-11-16 | 南京林业大学 | A kind of bamboo wood bending component bidirectional eccentric charger and installation method |
| CN106153314A (en) * | 2016-06-15 | 2016-11-23 | 重庆大学 | A kind of plane framework node loads and node area detrusion measurement apparatus |
| CN106840891A (en) * | 2017-03-07 | 2017-06-13 | 合肥工业大学 | A kind of Experimental Study on Seismic Behavior flexible substrate loading 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 |
| CN107727343A (en) * | 2016-08-12 | 2018-02-23 | 扬州大学 | A kind of adjustable frame node shock test loading device |
| CN109211544A (en) * | 2018-08-10 | 2019-01-15 | 湖北工程学院 | The pseudo-static experimental axle power loading device of power muscle sidesway Self-resetting |
| CN109488040A (en) * | 2018-12-06 | 2019-03-19 | 郭思麟 | A kind of building reparation bracing means |
| CN109813601A (en) * | 2019-02-28 | 2019-05-28 | 天津大学 | A kind of structure twin columns loading device |
| CN109855984A (en) * | 2018-12-05 | 2019-06-07 | 中国建筑股份有限公司 | A kind of unidirectional compression shear loading device and its application method |
| CN110553907A (en) * | 2018-05-31 | 2019-12-10 | 福建江夏学院 | Frame node self-balancing continuous loading device for chlorine salt environment and load coupling |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105466758B (en) * | 2015-11-18 | 2018-05-08 | 重庆大学 | The loading device and method that frictional influence can be eliminated and column axial force can be controlled |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604621B (en) * | 2013-11-27 | 2016-02-10 | 天津大学 | A kind of charger of test space structure node Hysteresis Behavior |
| CN103604621A (en) * | 2013-11-27 | 2014-02-26 | 天津大学 | Loading device for test space structure node hysteretic performance |
| CN103712858A (en) * | 2014-01-01 | 2014-04-09 | 浙江建设职业技术学院 | Spiral type loading positioning device for column |
| CN103712858B (en) * | 2014-01-01 | 2016-04-13 | 浙江建设职业技术学院 | A kind of spiral loading locating device of post |
| CN104729936A (en) * | 2015-04-13 | 2015-06-24 | 南通理工学院 | Multifunctional fatigue testing machine |
| CN104729936B (en) * | 2015-04-13 | 2017-11-10 | 南通理工学院 | A kind of Multifunctional fatigue testing machine |
| CN106153314A (en) * | 2016-06-15 | 2016-11-23 | 重庆大学 | A kind of plane framework node loads and node area detrusion measurement apparatus |
| CN106124179A (en) * | 2016-07-18 | 2016-11-16 | 南京林业大学 | A kind of bamboo wood bending component bidirectional eccentric charger and installation method |
| CN107727343A (en) * | 2016-08-12 | 2018-02-23 | 扬州大学 | A kind of adjustable frame node shock test loading device |
| CN106840891A (en) * | 2017-03-07 | 2017-06-13 | 合肥工业大学 | A kind of Experimental Study on Seismic Behavior flexible substrate loading 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 |
| CN110553907A (en) * | 2018-05-31 | 2019-12-10 | 福建江夏学院 | Frame node self-balancing continuous loading device for chlorine salt environment and load coupling |
| CN109211544A (en) * | 2018-08-10 | 2019-01-15 | 湖北工程学院 | The pseudo-static experimental axle power loading device of power muscle sidesway Self-resetting |
| CN109855984A (en) * | 2018-12-05 | 2019-06-07 | 中国建筑股份有限公司 | A kind of unidirectional compression shear loading device and its application method |
| CN109855984B (en) * | 2018-12-05 | 2022-02-22 | 中国建筑股份有限公司 | Unidirectional compression shear loading device and application method thereof |
| CN109488040A (en) * | 2018-12-06 | 2019-03-19 | 郭思麟 | A kind of building reparation bracing means |
| CN109813601A (en) * | 2019-02-28 | 2019-05-28 | 天津大学 | A kind of structure twin columns loading device |
| CN109813601B (en) * | 2019-02-28 | 2024-03-08 | 天津大学 | Structure double-column loading device |
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Granted publication date: 20151021 Termination date: 20160321 |