CN109708865B - A test support for column beam node is experimental - Google Patents
A test support for column beam node is experimental Download PDFInfo
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- CN109708865B CN109708865B CN201910085230.5A CN201910085230A CN109708865B CN 109708865 B CN109708865 B CN 109708865B CN 201910085230 A CN201910085230 A CN 201910085230A CN 109708865 B CN109708865 B CN 109708865B
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Abstract
The invention discloses a novel test support for a column-beam joint test, which comprises a horizontal sliding support, a fixed support and a detachable column-shaped hinge, wherein the fixed support comprises a bottom plate fixed on a counter-force foundation, a horizontal force bearing plate arranged at the top of the bottom plate and a linear guide rail arranged at the top of the bottom plate; the novel test support provided by the invention can be used for accurately measuring the horizontal axial force generated by the column beam node sample when bearing the vertical load, and can also be used for accurately measuring the arch effect and the cable effect of the column beam node sample when being fixedly connected with the beam end.
Description
Technical Field
The invention relates to the technical field of civil engineering structure tests, in particular to a test support for a column-beam joint test.
Background
In the assembled frame structure, the beam column joints connect the prefabricated beam columns into a whole, and the connection joints play roles in load transmission and anti-seismic energy consumption. The connection points of the stress elements occupy a significant position in the assembled frame structure. The fabricated concrete node can improve the overall stability of the structure. At present, in the mechanical property test of a column beam node, the horizontal axial force generated by the column beam node sample when bearing the vertical load cannot be accurately measured, and the arch effect and the cable effect of the column beam node sample when being fixedly connected at the beam end cannot be accurately measured.
Disclosure of Invention
The invention aims to provide a test support for a column-beam joint test, which solves the problems in the prior art, and can be used for accurately measuring horizontal axial force generated by a column-beam joint sample when bearing vertical load and also can be used for accurately measuring arch effect and cable effect of the column-beam joint sample when being fixedly connected at a beam end in the beam-column joint test.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a test support for a column-beam joint test, which comprises a horizontal sliding support, a fixed support and a detachable column hinge, wherein the fixed support comprises a base fixed on a counter-force foundation, an L-shaped horizontal force bearing bent plate arranged at the top of the base and a linear guide rail arranged at the top of a transverse bottom plate of the L-shaped horizontal force bearing bent plate; the horizontal sliding support comprises an inverted T-shaped sliding plate and a sliding block fixed at the bottom of a bottom plate of the inverted T-shaped sliding plate, the sliding block is in sliding connection with the linear guide rail, one side of a vertical plate of the inverted T-shaped sliding plate is hinged with the column type hinge, a load dowel bar is further arranged between the other side of the vertical plate of the inverted T-shaped sliding plate and the L-shaped horizontal force bearing bent plate, one end of the load dowel bar is fixedly connected with the vertical plate of the inverted T-shaped sliding plate, the other end of the load dowel bar penetrates through the vertical plate of the L-shaped horizontal force bearing bent plate and is connected with one bearing surface of a load sensor, and the other bearing surface of the load sensor is connected with the vertical plate of the L-shaped horizontal force bearing bent plate.
Preferably, the columnar hinge is fixedly connected with the inverted T-shaped sliding plate through bolts.
Preferably, the slider is fixed to the bottom plate bottom of the inverted T-shaped sliding plate by a screw.
Preferably, the linear guide is a ball linear guide.
Preferably, a pair of locking nuts is further screwed on a part of the rod body of the load dowel bar penetrating through the L-shaped horizontal force bearing bent plate, one bearing surface of the load sensor is fixed by the locking nuts, and the other bearing surface of the load sensor is fixed on the vertical plate of the L-shaped horizontal force bearing bent plate by screws.
Preferably, the base is anchored to the counter-force foundation.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the test support for the column-beam joint test, provided by the invention, the impact of vertical load on the measurement of the horizontal axial force is eliminated by arranging the ball linear guide sliding support of the detachable column-type hinge and the horizontal axial force measurement load sensor connected with the ball linear guide sliding support, so that the horizontal axial force generated by the column-beam joint sample when bearing the vertical load can be accurately measured, and the arch effect and the cable effect of the column-beam joint sample when fixedly connecting the beam end can be accurately measured after the column-type hinge is detached.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a test stand for a beam-column joint test according to the present invention;
FIG. 2 is a half cross-sectional view of a test stand for a column-beam joint test of the present invention;
in the figure: the device comprises a 1-column hinge, a 2-base, a 3-L-shaped horizontal force bearing bent plate, a 4-linear guide rail, a 5-inverted T-shaped sliding plate, a 6-sliding block, a 7-load dowel bar, an 8-load sensor, a 9-locking nut, a 10-column beam node sample and 11-screws.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a test support for a column-beam joint test, which is used for solving the problems existing in the prior art.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The embodiment provides a test support for a column-beam joint test, as shown in fig. 1-2, the test support comprises a horizontal sliding support, a fixed support and a detachable column hinge 1, the fixed support comprises a base 2 fixed on a counterforce foundation, an L-shaped horizontal force bearing bent plate 3 arranged at the top of the base 2 and a linear guide rail 4 arranged at the top of a transverse bottom plate of the L-shaped horizontal force bearing bent plate 3, the horizontal sliding support comprises an inverted T-shaped sliding plate 5 and a sliding block 6 fixed at the bottom plate bottom of the inverted T-shaped sliding plate 5, the sliding block 6 is in sliding connection with the linear guide rail 4, one side of a vertical upright plate of the inverted T-shaped sliding plate 5 is connected with the column hinge 1, a load dowel bar 7 is further arranged between the other side of the vertical upright plate of the inverted T-shaped sliding plate 5 and the L-shaped horizontal force bearing bent plate 3, one end of the load dowel bar 7 is fixedly connected with the vertical upright plate of the inverted T-shaped sliding plate 5 through a screw, and the other end of the load sensor 8 passes through the L-shaped horizontal force bearing bent plate 3 to be connected with one bearing surface of a load sensor 8.
In order to realize the detachability of the column hinge 1, the column hinge 1 is fixedly connected with the inverted T-shaped sliding plate 5 through bolts, and when the column hinge 1 is not needed, the column hinge 1 can be detached through detaching the bolts.
In this embodiment, the slider 6 is fixed on the bottom plate of the inverted T-shaped sliding plate 5 by a screw, and the slider 6 is horizontally disposed and slidably connected with the linear guide rail 4 fixed on the transverse bottom plate of the L-shaped horizontal force bearing bending plate 3 on the base 2 by a screw, and the degree of freedom in the horizontal direction is maintained under the action of the linear guide rail 4.
In this embodiment, the linear guide 4 is a ball linear guide 4.
In this embodiment, the base 2 and the L-shaped horizontal force-bearing bending plate 3 at the top thereof are fixed as one body by bolts.
In the embodiment, a pair of locking nuts 9 are further connected to a rod body of the load dowel bar 7 penetrating through the vertical plate part of the L-shaped horizontal force bearing bent plate 3 in a threaded manner, so that the load sensor 8 is locked and fixed on the load dowel bar 7, and one bearing surface of the load sensor 8 is fixed; at the same time, the other support surface of the load cell 8 is fastened to the L-shaped horizontal force-bearing bending plate 3 by means of screws 11.
In this embodiment, the base 2 is anchored to the counter-force foundation for carrying horizontal and vertical loads.
When the test support for the column-beam joint test is applied to the column-beam joint test, the test supports are respectively arranged at two ends of a precast beam of a column-beam joint test sample, the precast column of the column-beam joint test sample is vertically loaded by utilizing a vertical loading actuator, a detachable column-shaped hinge 1 is connected to an inverted T-shaped sliding plate 5 of the test support, and when the support is connected with a column-beam joint test sample 10 through the column-shaped hinge 1, the column-shaped hinge 1 has the function of ensuring that the test sample can rotate and simultaneously transmitting axial force to the inverted T-shaped sliding plate 5 of the sliding support. The inverted T-shaped sliding plate 5 of the sliding support is connected with the load sensor 8 through a load dowel bar 7 penetrating through the L-shaped horizontal force bearing bending plate 3 of the fixed support, so that the measurement of horizontal axis force is completed in the test process, and the measurement of horizontal axis force is not influenced by vertical load. Under the condition of dismantling the column hinge 1, the sliding support and the column beam node sample 10 can be directly fixedly connected together for accurately measuring the arch effect and the cable effect of the column beam node sample 10.
The principles and embodiments of the present invention have been described with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (6)
1. A test support for column beam node is experimental, its characterized in that: the device comprises a horizontal sliding support, a fixed support and a detachable column hinge, wherein the fixed support comprises a base fixed on a counter-force foundation, an L-shaped horizontal force bearing bent plate arranged at the top of the base and a linear guide rail arranged at the top of a transverse bottom plate of the L-shaped horizontal force bearing bent plate; the horizontal sliding support comprises an inverted T-shaped sliding plate and a sliding block fixed at the bottom of a bottom plate of the inverted T-shaped sliding plate, the sliding block is in sliding connection with the linear guide rail, one side of a vertical plate of the inverted T-shaped sliding plate is hinged with the column type hinge, a load dowel bar is further arranged between the other side of the vertical plate of the inverted T-shaped sliding plate and the L-shaped horizontal force bearing bent plate, one end of the load dowel bar is fixedly connected with the vertical plate of the inverted T-shaped sliding plate, the other end of the load dowel bar penetrates through the vertical plate of the L-shaped horizontal force bearing bent plate and is connected with one bearing surface of a load sensor, and the other bearing surface of the load sensor is connected with the vertical plate of the L-shaped horizontal force bearing bent plate.
2. The test stand for a column-beam joint test of claim 1, wherein: the column hinge is fixedly connected with the inverted T-shaped sliding plate through bolts.
3. The test stand for a column-beam joint test of claim 1, wherein: the sliding block is fixed on the bottom plate bottom of the inverted T-shaped sliding plate through a screw.
4. The test stand for a column-beam joint test of claim 1, wherein: the linear guide rail is a ball linear guide rail.
5. The test stand for a column-beam joint test of claim 1, wherein: the load dowel bar penetrates through a part of the rod body of the L-shaped horizontal force bearing bent plate and is further connected with a pair of locking nuts in a threaded mode, one bearing surface of the load sensor is fixed by the locking nuts, and the other bearing surface of the load sensor is fixed on a vertical plate of the L-shaped horizontal force bearing bent plate by screws.
6. The test stand for a column-beam joint test of claim 1, wherein: the base is anchored to the counter-force foundation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085230.5A CN109708865B (en) | 2019-01-29 | 2019-01-29 | A test support for column beam node is experimental |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910085230.5A CN109708865B (en) | 2019-01-29 | 2019-01-29 | A test support for column beam node is experimental |
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| CN109708865A CN109708865A (en) | 2019-05-03 |
| CN109708865B true CN109708865B (en) | 2024-01-30 |
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| CN101408474A (en) * | 2007-12-18 | 2009-04-15 | 同济大学 | Novel test device applicable to space frame beam column node |
| CN102435427A (en) * | 2011-09-22 | 2012-05-02 | 东华大学 | System for testing comprehensive performance of beam column nodes of goods shelf |
| CN103175707A (en) * | 2013-03-25 | 2013-06-26 | 同济大学 | Testing apparatus suitable for substructure robustness of beam-column joints of planar frames |
| CN105136578A (en) * | 2015-09-22 | 2015-12-09 | 湖南大学 | Beam type conversion device capable of eliminating inertia effect in drop-hammer impact tensile test |
| WO2016031794A1 (en) * | 2014-08-25 | 2016-03-03 | オイレス工業株式会社 | Load testing apparatus |
| CN205642868U (en) * | 2016-05-16 | 2016-10-12 | 西安建筑科技大学 | Two -way load combined action capability test device of herringbone post node |
| EA201500807A1 (en) * | 2015-08-25 | 2017-02-28 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Томский Государственный Архитектурно-Строительный Университет" | STAND FOR TESTING OF CONSTRUCTION STRUCTURES FOR ACTION OF SHORT-TERM DYNAMIC COMPRESSIVE LOAD |
| RU2622496C1 (en) * | 2016-07-15 | 2017-06-15 | Федеральное государственное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) | Method of experimental determination of dynamic addition loading in frame-rod structural systems and device for its implementation |
| CN209280298U (en) * | 2019-01-29 | 2019-08-20 | 杭州邦威机电控制工程有限公司 | A kind of new test support for node of column and beam test |
-
2019
- 2019-01-29 CN CN201910085230.5A patent/CN109708865B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408474A (en) * | 2007-12-18 | 2009-04-15 | 同济大学 | Novel test device applicable to space frame beam column node |
| CN102435427A (en) * | 2011-09-22 | 2012-05-02 | 东华大学 | System for testing comprehensive performance of beam column nodes of goods shelf |
| CN103175707A (en) * | 2013-03-25 | 2013-06-26 | 同济大学 | Testing apparatus suitable for substructure robustness of beam-column joints of planar frames |
| WO2016031794A1 (en) * | 2014-08-25 | 2016-03-03 | オイレス工業株式会社 | Load testing apparatus |
| EA201500807A1 (en) * | 2015-08-25 | 2017-02-28 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Томский Государственный Архитектурно-Строительный Университет" | STAND FOR TESTING OF CONSTRUCTION STRUCTURES FOR ACTION OF SHORT-TERM DYNAMIC COMPRESSIVE LOAD |
| CN105136578A (en) * | 2015-09-22 | 2015-12-09 | 湖南大学 | Beam type conversion device capable of eliminating inertia effect in drop-hammer impact tensile test |
| CN205642868U (en) * | 2016-05-16 | 2016-10-12 | 西安建筑科技大学 | Two -way load combined action capability test device of herringbone post node |
| RU2622496C1 (en) * | 2016-07-15 | 2017-06-15 | Федеральное государственное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) | Method of experimental determination of dynamic addition loading in frame-rod structural systems and device for its implementation |
| CN209280298U (en) * | 2019-01-29 | 2019-08-20 | 杭州邦威机电控制工程有限公司 | A kind of new test support for node of column and beam test |
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Effective date of registration: 20240520 Address after: No. 6 Dangxi Village Commercial Street, Dangjia Street Office, Shizhong District, Jinan City, Shandong Province, 250002 Patentee after: JINAN POPWIL INSTRUMENT Co.,Ltd. Country or region after: China Address before: Room 504, Longdu Building, No. 376 Tianmushan Road, Xihu District, Hangzhou City, Zhejiang Province, 310000 Patentee before: HANGZHOU POPWIL ELECTROMECHANICAL CONTROL ENGINEERING CO.,LTD. Country or region before: China |
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