CN106644268B - Beam test support - Google Patents
Beam test support Download PDFInfo
- Publication number
- CN106644268B CN106644268B CN201710146909.1A CN201710146909A CN106644268B CN 106644268 B CN106644268 B CN 106644268B CN 201710146909 A CN201710146909 A CN 201710146909A CN 106644268 B CN106644268 B CN 106644268B
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- support
- roller
- plates
- test
- plate
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
- G01M1/04—Adaptation of bearing support assemblies for receiving the body to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a beam test support, which comprises a base plate, wherein a lower roller support is fixedly arranged on the upper surface of the base plate, a lower roller is arranged on the roller support, and lower supporting springs are symmetrically arranged on two sides of the lower roller respectively; the upper surface of the lower support spring is provided with a lower support plate; u-shaped supporting plates are welded on base plates at two sides of the lower roller support, and a horizontal adjusting screw rod is assembled on the U-shaped supporting plates; the upper ends of the two U-shaped supporting plates are welded with upright posts, the upper ends of the upright posts are provided with locking nuts, the upper ends of the upright posts are fixedly provided with cover plates, and the cover plates and the U-shaped supporting plates enclose a test beam placing space with adjustable space; an upper roller support is welded on the lower end face of the cover plate, and two upper compression springs are arranged on the lower surface of the upper roller support; the lower end of the upper compression spring is connected with an upper supporting plate. The device can provide a good constraint effect for the beam end in the test process, and can limit the displacement of the beam support in the horizontal or vertical direction, so that the test result is prevented from being greatly influenced by overlarge displacement.
Description
Technical Field
The invention belongs to the technical field of beam tests, and particularly relates to a comprehensive beam test support capable of improving lateral stability of a beam member in a monotonic static test and a low-cycle reciprocating load test.
Background
The supports used for carrying out monotone static force tests and low-cycle reciprocating load tests of beam members in most of the structural laboratories in China are relatively simple, do not have a lateral limiting function, and particularly tend to accumulate and generate relatively large lateral displacement in the low-cycle reciprocating load process so as to influence test results.
Aiming at the problems of the existing beam-end support for the test of the beam-type component, the invention provides the novel beam-end support for the test, which can reduce or avoid the lateral displacement of the beam-type component caused by small load or other factors in the loading process, furthest reduce the adverse effect of the lateral displacement on the test result, and can adjust the test space according to the specific section size of the beam, thereby meeting the test requirements of most beam-type components.
In summary, the invention provides a beam test support with lateral limit and adjustable test space.
Disclosure of Invention
The invention provides the beam test support which has simple structure, convenient installation and use and improved working efficiency, can provide good constraint effect for the beam end in the test process, can limit the displacement of the beam support in the horizontal or vertical direction, and avoids great influence on the test result due to overlarge displacement.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
the beam test support is characterized by comprising a base plate, wherein four corners of the base plate are provided with four threaded holes, and the threaded holes are connected with an existing rigid base through bolt assemblies; a lower roller support is fixedly arranged on the upper surface of the base plate, and a lower roller placing groove is formed in the roller support in the direction perpendicular to the test beam; a lower roller is arranged in the lower roller placing groove, and two lower supporting springs are symmetrically arranged on two sides of the lower roller respectively; the upper surface of the lower support spring is provided with a lower support plate;
u-shaped supporting plates are welded on base plates on two sides of the lower roller support, supporting rib plates are welded at the edges of the U-shaped supporting plates, threaded through holes are formed in the horizontal direction of the U-shaped supporting plates, and horizontal adjusting screw rods are arranged in the threaded through holes in a matched mode; clamping parts are arranged at the outer end parts of the horizontal adjusting screw rods;
the upper ends of the two U-shaped supporting plates are welded with upright posts, locking nuts are assembled at the upper ends of the upright posts, a cover plate is fixedly installed at the upper ends of the upright posts through the locking nuts, an upper roller support is welded on the lower end face of the cover plate, and an upper roller placing groove is formed in the upper roller support in the direction perpendicular to the test beam; an upper roller is arranged in the upper roller placing groove; two sides of the upper roller on the lower surface of the upper roller support are symmetrically provided with two upper compression springs; the lower end of the upper compression spring is connected with an upper supporting plate; the cover plate and the U-shaped supporting plates on two sides enclose a test beam placement space with adjustable space.
The invention can also adopt the following technical measures:
the section of the lower roller placing groove of the lower roller support is of an arc-shaped or rectangular structure; the section of the upper roller placing groove of the upper roller support is of an arc-shaped or rectangular structure.
The inner end part of the horizontal adjusting screw rod is provided with a pressing end plate.
The invention has the advantages and positive effects that: due to the adoption of the technical scheme, the invention has the following advantages:
1. the steel base plate is connected with the test bed through bolts, so that the overall stability of the fixed support is improved.
2. Through the regulation of the bolts on both sides of the U-shaped supporting plate and the end pressing end plates thereof, the contact area between the U-shaped supporting plate and the beam is increased, and the lateral constraint effect is enhanced.
3. Through the regulation of the bolt at the top of the U-shaped supporting plate and the cover plate connected with the bolt, the adjustability of the vertical space is realized, and the displacement of the beam is vertically limited.
4. Springs are arranged on two sides of the upper roller and the lower roller, so that the upper supporting plate and the lower supporting plate on the rollers can be automatically leveled, and the installation is convenient.
In conclusion, the invention has the advantages of simple structure, convenient installation and use, and improved working efficiency, can provide good constraint effect for the beam end in the test process, and can limit the displacement of the beam support in the horizontal or vertical direction, thereby avoiding great influence on the test result due to overlarge displacement.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a perspective view of the present invention;
fig. 5 is a schematic diagram of a test structure for a simply supported beam according to the present invention.
In the figure: 1. a base plate; 2. a lower roller support; 2-1, a lower roller placing groove; 3. a lower roller; 4. a lower support spring; 5. a lower support plate; 6. a U-shaped supporting plate; 6-1, supporting rib plates; 7. adjusting a screw rod horizontally; 7-1, a clamping part; 8. a column; 9. a lock nut; 10. a cover plate; 11. an upper roller support; 11-1, an upper roller placing groove; 12. an upper roller; 13. a pressing spring is arranged on the upper part; 14. an upper support plate; 15. compressing the end plate; 16. and (5) testing the beam.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1 to 4, a beam test stand is characterized by comprising a base plate 1, wherein four corners of the base plate are provided with four threaded holes 1-1, and the threaded holes are connected with an existing rigid base through bolt assemblies; a lower roller support 2 is fixedly arranged on the upper surface of the base plate, and a lower roller placing groove 2-1 is arranged on the roller support in the direction perpendicular to the test beam; a lower roller 3 is arranged in the lower roller placing groove, and two lower supporting springs 4 are symmetrically arranged on two sides of the lower roller respectively; the upper surface of the lower support spring is provided with a lower support plate 5; when the beam is placed on the roller, the lower supporting plate 5 on the roller can be automatically leveled, so that the installation is convenient, and the stability of the beam at the support in the experimental process can be improved.
U-shaped support plates 6 are welded on base plates on two sides of the lower roller support 2, support rib plates 6-1 are welded at the edges of the U-shaped support plates, threaded through holes are formed in the horizontal direction of the U-shaped support plates, and horizontal adjusting screw rods 7 are assembled in the threaded through holes; the outer end parts of the horizontal adjusting screw rods are respectively provided with a clamping part 7-1; two nuts can be welded on the U-shaped supporting plate, the transverse test space can be flexibly controlled by screwing in or screwing out the horizontal adjusting screw rod 7, lateral limiting is realized, lateral displacement in the test process is prevented, and the stability of the high-section beam can be improved.
The upper ends of the two U-shaped supporting plates 6 are welded with upright posts 8, the upper end parts of the upright posts are provided with locking nuts 9, the upper end parts of the upright posts are fixedly provided with cover plates 10 through the locking nuts, and the cover plates and the U-shaped supporting plates on the two sides enclose a test beam 16 placement space with adjustable space; an upper roller support 11 is welded on the lower end face of the cover plate, and an upper roller placing groove 11-1 is arranged on the upper roller support in the direction perpendicular to the test beam; an upper roller 12 is arranged in the upper roller placing groove; two sides of the upper roller on the lower surface of the upper roller support are symmetrically provided with two upper compression springs 13; the lower end of the upper compression spring is connected with an upper supporting plate 14; when the beam is placed on the upper roller, the upper supporting plate 14 on the roller can be automatically leveled, so that the installation is convenient, and the stability of the beam at the support in the experimental process can be improved.
The invention can also adopt the following technical measures:
the end plate 15 is pressed on the inner end of the horizontal adjusting screw rod, and the contact area between the horizontal adjusting screw rod and two sides of the beam is increased when the horizontal adjusting screw rod is screwed in, so that the lateral limiting function is better realized.
The section of the lower roller placing groove of the lower roller support is of an arc-shaped or rectangular structure; the section of the upper roller placing groove of the upper roller support is of an arc-shaped or rectangular structure.
Referring to fig. 5, the two beam test supports, namely, the fixed support and the sliding support, are required for the experiment of the simply supported beam, wherein one end of the simply supported beam, which is arranged in the beam test support in a penetrating manner, is the fixed beam test support, and the other end is the sliding beam test support; the upper roller support and the lower roller support are respectively provided with an arc-shaped notch and a rectangular notch, and roller placing grooves on the upper roller support and the lower roller support of the fixed beam test support are arc-shaped and are just meshed with the rollers; the roller placing grooves on the upper roller support and the lower roller support of the sliding beam test support are rectangular and slightly larger than the diameter of the roller, so that the roller can roll in the placing grooves conveniently.
By adopting the technical scheme, the invention can provide good constraint effect for the beam end in the test process, can limit the displacement of the beam support in the horizontal or vertical direction, avoids great influence on the test result due to overlarge displacement, and has the advantages of simple structure, convenient installation and use, improvement of working efficiency and the like.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, but any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present invention are within the scope of the technical solutions of the present invention.
Claims (1)
1. The beam test support is characterized by comprising a base plate (1), wherein four corners of the base plate are provided with four threaded holes (1-1), and the threaded holes are connected with an existing rigid base through bolt assemblies; a lower roller support (2) is fixedly arranged on the upper surface of the base plate, and a lower roller placing groove (2-1) is formed in the lower roller support in the direction perpendicular to the test beam; a lower roller (3) is arranged in the lower roller placing groove, and two lower supporting springs (4) are symmetrically arranged on two sides of the lower roller respectively; the upper surface of the lower support spring is provided with a lower support plate (5); u-shaped supporting plates (6) are welded on base plates on two sides of the lower roller support (2), supporting rib plates (6-1) are welded at the edges of the U-shaped supporting plates, threaded through holes are formed in the horizontal direction of the U-shaped supporting plates, and horizontal adjusting screw rods (7) are assembled in the threaded through holes; clamping parts (7-1) are arranged at the outer end parts of the horizontal adjusting screw rods; the upper ends of the two U-shaped supporting plates (6) are welded with upright posts (8), the upper end parts of the upright posts are provided with locking nuts (9), the upper end parts of the upright posts are fixedly provided with cover plates (10) through the locking nuts, the lower end surfaces of the cover plates are welded with upper roller supporting seats (11), and the upper roller supporting seats are provided with upper roller placing grooves (11-1) in the direction perpendicular to the test beam; an upper roller (12) is arranged in the upper roller placing groove; two sides of the upper roller on the lower surface of the upper roller support are symmetrically provided with two upper compression springs (13); the lower end of the upper compression spring is connected with an upper supporting plate (14); the cover plate and the U-shaped supporting plates on the two sides enclose a test beam placing space with adjustable space; the section of the lower roller placing groove of the lower roller support is of an arc-shaped or rectangular structure; the section of the upper roller placing groove of the upper roller support is of an arc-shaped or rectangular structure; the inner end part of the horizontal adjusting screw rod is provided with a pressing end plate (15), so that the contact area with the two sides of the beam is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146909.1A CN106644268B (en) | 2017-03-13 | 2017-03-13 | Beam test support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146909.1A CN106644268B (en) | 2017-03-13 | 2017-03-13 | Beam test support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644268A CN106644268A (en) | 2017-05-10 |
| CN106644268B true CN106644268B (en) | 2023-10-27 |
Family
ID=58847390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710146909.1A Active CN106644268B (en) | 2017-03-13 | 2017-03-13 | Beam test support |
Country Status (1)
| Country | Link |
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| CN (1) | CN106644268B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565402A (en) * | 2017-09-18 | 2018-01-09 | 合肥慕智信息技术有限公司 | A kind of regulator cubicle protects base |
| CN108120636A (en) * | 2018-03-05 | 2018-06-05 | 天津城建大学 | A kind of vertical loading system of roller type low friction with following function |
| CN108593419A (en) * | 2018-03-05 | 2018-09-28 | 天津城建大学 | A kind of vertical loading system of chute type low friction with following function |
| CN108389463A (en) * | 2018-04-16 | 2018-08-10 | 天津城建大学 | A kind of loading system suitable for armored concrete beam test practical teaching |
| CN108399849A (en) * | 2018-04-24 | 2018-08-14 | 天津城建大学 | Self-balance loading system suitable for armored concrete beam test practical teaching |
| CN109655217A (en) * | 2019-02-12 | 2019-04-19 | 天津城建大学 | A kind of beam test beam end support |
| CN113640028A (en) * | 2021-08-16 | 2021-11-12 | 中铁建设集团华东工程有限公司 | Beam-slab structure integral test loading support suitable for beams of different specifications |
| CN114993636B (en) * | 2022-04-20 | 2023-04-11 | 海南大学 | Adjustable fixed hinge support for mechanical property test of simply supported beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2624605A1 (en) * | 1987-12-09 | 1989-06-16 | Armines | Apparatus for carrying out bending tests with four support points |
| CN201191251Y (en) * | 2008-04-25 | 2009-02-04 | 河北理工大学 | Steel reinforced concrete frame structure beam test platform |
| CN103196687A (en) * | 2013-03-21 | 2013-07-10 | 广西大学 | Loading device applicable to space specially-shaped column node test |
| CN103776685A (en) * | 2014-01-24 | 2014-05-07 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Static force load testing device for concrete beam |
| CN204694573U (en) * | 2015-06-26 | 2015-10-07 | 青岛理工大学 | A kind of uncovered concrete tubular pile stake Soil Interface shearing simulation test unit |
| CN105258961A (en) * | 2015-10-21 | 2016-01-20 | 重庆长征重工有限责任公司 | Rail transit vehicle bogie side frame limit vertical load test apparatus |
| CN105651614A (en) * | 2016-01-25 | 2016-06-08 | 西南交通大学 | Experiment loading device for shield segment and straight beam |
| CN205656071U (en) * | 2016-05-13 | 2016-10-19 | 山东科技大学 | Experimental pivoting support of displacement slidingtype concrete simple beam |
| CN206563634U (en) * | 2017-03-13 | 2017-10-17 | 天津城建大学 | A kind of beam test bearing |
-
2017
- 2017-03-13 CN CN201710146909.1A patent/CN106644268B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2624605A1 (en) * | 1987-12-09 | 1989-06-16 | Armines | Apparatus for carrying out bending tests with four support points |
| CN201191251Y (en) * | 2008-04-25 | 2009-02-04 | 河北理工大学 | Steel reinforced concrete frame structure beam test platform |
| CN103196687A (en) * | 2013-03-21 | 2013-07-10 | 广西大学 | Loading device applicable to space specially-shaped column node test |
| CN103776685A (en) * | 2014-01-24 | 2014-05-07 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Static force load testing device for concrete beam |
| CN204694573U (en) * | 2015-06-26 | 2015-10-07 | 青岛理工大学 | A kind of uncovered concrete tubular pile stake Soil Interface shearing simulation test unit |
| CN105258961A (en) * | 2015-10-21 | 2016-01-20 | 重庆长征重工有限责任公司 | Rail transit vehicle bogie side frame limit vertical load test apparatus |
| CN105651614A (en) * | 2016-01-25 | 2016-06-08 | 西南交通大学 | Experiment loading device for shield segment and straight beam |
| CN205656071U (en) * | 2016-05-13 | 2016-10-19 | 山东科技大学 | Experimental pivoting support of displacement slidingtype concrete simple beam |
| CN206563634U (en) * | 2017-03-13 | 2017-10-17 | 天津城建大学 | A kind of beam test bearing |
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| Publication number | Publication date |
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| CN106644268A (en) | 2017-05-10 |
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Application publication date: 20170510 Assignee: Tianjin United Chuangxing Technology Development Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000021 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240126 Application publication date: 20170510 Assignee: Tianjin Liankai Technology Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000020 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240129 Application publication date: 20170510 Assignee: Tianjin Xingdu Space Network Technology Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000019 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240129 Application publication date: 20170510 Assignee: Yunneng Zhongchuang Investment Management (Tianjin) Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000018 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240129 Application publication date: 20170510 Assignee: Tianjin 1919 Technology Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000017 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240129 Application publication date: 20170510 Assignee: Liantai Kechuang (Tianjin) Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000016 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240129 Application publication date: 20170510 Assignee: Gongneng Enterprise Management Consulting (Tianjin) Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000023 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240126 Application publication date: 20170510 Assignee: Tianjin Huihe Investment Management Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000022 Denomination of invention: A beam test support Granted publication date: 20231027 License type: Common License Record date: 20240126 |