CN112730080A - Uniform distribution loading device for steel structure test - Google Patents
Uniform distribution loading device for steel structure test Download PDFInfo
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- CN112730080A CN112730080A CN202011550346.0A CN202011550346A CN112730080A CN 112730080 A CN112730080 A CN 112730080A CN 202011550346 A CN202011550346 A CN 202011550346A CN 112730080 A CN112730080 A CN 112730080A
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- loading
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- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- 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
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
钢结构试验均布加载装置，属于土木工程专业钢结构研究领域。所述的钢结构试验均布加载装置包括加载油缸、转接板、加载梁、尾铰、荷载均衡油缸和加载球铰。所述的加载油缸固定于试验框架的顶部，侧边两个油孔用于连接电动缸或手动液压机；转接板固定于加载油缸的下端；加载梁上翼缘的中心固定于转接板的下端；尾铰以加载梁的中线为基准对称排布，每个尾铰的顶板固定于加载梁的下翼缘，尾铰的顶板和底板均连接转轴，底板可绕转轴在加载平面内相对顶板自由转动；荷载均衡油缸的顶板与尾铰的底板连接，可随尾铰的底板在加载平面内自由转动，加载球铰的上部固定端与荷载均衡油缸的活塞杆下端连接，可在加载平面内自由转动。
The utility model discloses a uniformly distributed loading device for steel structure test, which belongs to the research field of steel structure specialized in civil engineering. The uniformly distributed loading device for the test of the steel structure includes a loading cylinder, an adapter plate, a loading beam, a tail hinge, a load balancing cylinder and a loading spherical hinge. The loading oil cylinder is fixed on the top of the test frame, and the two oil holes on the side are used to connect the electric cylinder or the manual hydraulic press; the adapter plate is fixed on the lower end of the loading oil cylinder; the center of the upper flange of the loading beam is fixed on the lower end of the adapter plate; The tail hinges are symmetrically arranged based on the center line of the loading beam. The top plate of each tail hinge is fixed to the lower flange of the loading beam. The top and bottom plates of the tail hinge are connected to the rotating shaft. The bottom plate can rotate freely relative to the top plate in the loading plane around the rotating shaft. ;The top plate of the load balancing cylinder is connected with the bottom plate of the tail hinge, which can rotate freely in the loading plane with the bottom plate of the tail hinge, and the upper fixed end of the loading spherical hinge is connected with the lower end of the piston rod of the load balancing cylinder, which can rotate freely in the loading plane. .
Description
Technical Field
The invention relates to a steel structure test loading device, belongs to the field of civil engineering professional steel structure research, and can realize vertical uniform loading of a steel structure in a mechanical test.
Background
With the continuous progress of science and technology, the rapid development of national economy, the continuous improvement of national steel yield, the gradual increase of the position of a steel structure in the construction industry, and the characteristics of light weight and high strength of the steel structure, the development of the steel structure in the construction industry is only increased but not reduced. Therefore, it is very important to research the stress performance of various steel structures under different conditions.
In the civil engineering major, various steel structure models are often used as research objects, but the existing test loading devices are mostly limited to concentrated loads which are easy to realize, few uniform loads are involved, and no formed uniform loading device exists, so that many tests cannot be smoothly carried out, and therefore, the invention of the uniform loading device suitable for the steel structure test is particularly important for researching relevant theories in the field of civil engineering steel structures.
Disclosure of Invention
The uniform distribution loading device for the steel structure test is stable in structure, adjustable in parameters, accurate and controllable in loading size and capable of being repeatedly used, uniform distribution loading of the small-size steel structure test in the civil engineering field can be achieved, and related test blanks are filled.
The technical scheme of the invention is as follows:
the uniform loading device for the steel structure test comprises a loading oil cylinder 1, a transfer plate 2, a loading beam 3, a tail hinge 4, a load balancing oil cylinder 5 and a loading spherical hinge 6;
the loading oil cylinder 1 is fixed at the top of the test frame, two oil holes on the side edge are used for connecting an electric cylinder or a manual hydraulic machine, and the electric cylinder or the manual hydraulic machine provides power for the whole loading process; the adapter plate 2 is fixed at the lower end of the loading oil cylinder 1 and plays a role in adapter connection, so that the center lines of the adapter plate 2 and the loading oil cylinder 1 are on the same straight line; the center of the upper flange of the loading beam 3 is fixed at the lower end of the adapter plate 2, so that the center lines of the loading beam 3 and the adapter plate 2 are on the same straight line; the tail hinges 4 are symmetrically arranged by taking the center line of the loading beam 3 as a reference, the top plate of each tail hinge 4 is fixed on the lower flange of the loading beam 3, the top plate and the bottom plate of each tail hinge 4 are connected with a rotating shaft, and the bottom plate can freely rotate around the rotating shafts in a loading plane relative to the top plate, so that additional stress is avoided, and uniform loading is ensured; the top plate of the load balancing oil cylinder 5 is connected with the bottom plate of the tail hinge 4 and can freely rotate in a loading plane along with the bottom plate of the tail hinge 4, the upper fixed end of the loading spherical hinge 6 is connected with the lower end of the piston rod of the load balancing oil cylinder 5 and can freely rotate in the loading plane, and therefore the test structure is guaranteed to be evenly stressed and does not generate additional stress.
Further, a sensor is arranged between the loading spherical hinge 6 and the test piece.
Furthermore, the number of the tail hinges 4 is selected according to the size of the loading beam 3 and the loading range.
Furthermore, the loading stroke of the load balancing oil cylinder 5 is 150mm, the using pressure is 16MPa, and the number of the load balancing oil cylinders 5 is selected according to the test conditions and the using requirements.
Further, the upper loading limit of the loading cylinder 1 is 10 tons.
The invention has the beneficial effects that: the uniform distribution loading device for the steel structure test manufactured according to the invention has the advantages of convenient assembly, scientific structure, accuracy and reliability. All the parts are connected through bolts, so that the installation is convenient, the device can be used for a long time after being installed once, and the test time is saved; the structure is stable, the mounting position can move along the frame, and the length of the loading beam can be adjusted according to the size; the loading and unloading operations are simple, the load is controlled through oil pressure, the result is accurate, the repeatability is high, and uniform loading tests of the elastic stage and the destructive stage of the steel structure can be performed.
Drawings
FIG. 1 is a front view of a steel structure test uniform loading device of the invention;
FIG. 2 is a side view of the steel structure test equipartition loading device of the present invention;
FIG. 3 is a top view of the steel structure test uniform loading device of the present invention;
in the figure: the device comprises a loading oil cylinder 1, a transfer plate 2, a loading beam 3, a tail hinge 4, a load balancing oil cylinder 5 and a loading ball hinge 6.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the invention comprises the following steps: the uniform loading device for the steel structure test comprises a loading oil cylinder 1, a transfer plate 2, a loading beam 3, a tail hinge 4, a load balancing oil cylinder 5 and a loading spherical hinge 6.
The specific installation mode of the equipment is as follows:
FIG. 1 is a front view of a steel structure test uniform loading device of the invention; FIG. 2 is a side view of the steel structure test equipartition loading device of the present invention; FIG. 3 is a top view of the uniform loading device for the steel structure test of the invention.
As shown in fig. 1, 2 and 3, the loading oil cylinder 1 is fixed on an upper beam of a test frame through bolts; the adapter plate 2 is fixed on the lower side of the loading oil cylinder 1 through bolts; the length of the loading beam 3 is 1500mm, and the loading beam is fixed on the adapter plate 2 through bolts; the tail hinges 4 are fixed on the lower side of the distribution beam through bolts and can freely rotate in a loading plane, and 20 tail hinges 4 are installed in the drawing; the load balancing oil cylinders 5 are connected with the tail hinge 4 through bolts and can freely rotate in a loading plane along with the tail hinge 4, and 20 load balancing oil cylinders 5 are installed in the drawing; the loading spherical hinges 6 are fixed on the lower side of the load balancing oil cylinder 5 through bolts and can freely rotate in a loading plane, and 20 loading spherical hinges 6 are installed in the drawing.
The application method of the uniform loading device for the steel structure test comprises the following steps:
firstly, install this steel construction test equipartition loading device according to above-mentioned mode.
And secondly, connecting an oil inlet pipe of the loading oil cylinder 1 with an oil hole of the electric cylinder or the manual hydraulic machine, connecting an oil outlet pipe of the loading oil cylinder 1 with an oil inlet pipe of a first load balancing oil cylinder 5 below, connecting an oil outlet pipe of the first load balancing oil cylinder 5 with an oil inlet pipe of a second load balancing oil cylinder 5, and so on, connecting all the load balancing oil cylinders 5 with the loading oil cylinder 1 in series, and connecting an oil outlet pipe of the last load balancing oil cylinder 5 with the oil hole of the electric cylinder or the manual hydraulic machine.
Thirdly, mounting a test beam and debugging all measuring instruments;
and fourthly, controlling the electric cylinder or the manual hydraulic machine to load.
And fifthly, after the test is finished, controlling the electric cylinder or the manual hydraulic machine to unload.
Claims (8)
1. The uniform distribution loading device for the steel structure test is characterized by comprising a loading oil cylinder (1), a transfer plate (2), a loading beam (3), a tail hinge (4), a load balancing oil cylinder (5) and a loading ball hinge (6);
the loading oil cylinder (1) is fixed at the top of the test frame, and two oil holes on the side edge are used for connecting an electric cylinder or a manual hydraulic machine; the adapter plate (2) is fixed at the lower end of the loading oil cylinder (1) and plays a role in adapter connection, so that the center lines of the adapter plate (2) and the loading oil cylinder (1) are on the same straight line; the center of the upper flange of the loading beam (3) is fixed at the lower end of the adapter plate (2), so that the center lines of the loading beam (3) and the adapter plate (2) are on the same straight line; the tail hinges (4) are symmetrically arranged by taking the center line of the loading beam (3) as a reference, the top plate of each tail hinge (4) is fixed on the lower flange of the loading beam (3), the top plate and the bottom plate of each tail hinge (4) are connected with a rotating shaft, and the bottom plate can freely rotate relative to the top plate in a loading plane around the rotating shafts; the top plate of the load balancing oil cylinder (5) is connected with the bottom plate of the tail hinge (4) and can freely rotate in a loading plane along with the bottom plate of the tail hinge (4), the upper fixed end of the loading spherical hinge (6) is connected with the lower end of the piston rod of the load balancing oil cylinder (5) and can freely rotate in the loading plane, and therefore the test structure is guaranteed to be evenly stressed and does not generate additional stress.
2. The steel structure test equipartition loading device of claim 1, characterized in that a sensor is arranged between the loading ball joint (6) and the test piece.
3. The steel structure test uniform distribution loading device according to claim 1 or 2, characterized in that the number of the tail hinges (4) is selected according to the size of the loading beam (3) and the loading range.
4. The uniform distribution loading device for the steel structure test according to claim 1 or 2, characterized in that the loading stroke of the load balancing oil cylinders (5) is 150mm, the use pressure is 16MPa, and the number of the load balancing oil cylinders (5) is selected according to the test conditions and the use requirements.
5. The uniform distribution loading device for the steel structure test according to claim 3, wherein the loading stroke of the load balancing oil cylinders (5) is 150mm, the service pressure is 16MPa, and the number of the load balancing oil cylinders (5) is selected according to the test condition and the service requirement.
6. The steel structure test uniform distribution loading device according to claim 1, 2 or 5, characterized in that the upper loading limit of the loading oil cylinder (1) is 10 tons.
7. The steel structure test uniform distribution loading device according to claim 1, 2 or 5, characterized in that the upper loading limit of the loading oil cylinder (1) is 10 tons.
8. The steel structure test uniform distribution loading device according to claim 1, 2 or 5, characterized in that the upper loading limit of the loading oil cylinder (1) is 10 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550346.0A CN112730080A (en) | 2020-12-24 | 2020-12-24 | Uniform distribution loading device for steel structure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550346.0A CN112730080A (en) | 2020-12-24 | 2020-12-24 | Uniform distribution loading device for steel structure test |
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| Publication Number | Publication Date |
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| CN112730080A true CN112730080A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011550346.0A Withdrawn CN112730080A (en) | 2020-12-24 | 2020-12-24 | Uniform distribution loading device for steel structure test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664748A (en) * | 2023-09-28 | 2024-03-08 | 济南天辰试验机制造有限公司 | Uniform loading testing machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012337A (en) * | 2010-12-15 | 2011-04-13 | 山东大学 | Flexibility uniform distribution pressure loading device applicable to geomechanical model test |
| CN204679269U (en) * | 2015-06-12 | 2015-09-30 | 中国人民解放军理工大学 | A kind of pseudo static testing device |
| CN105575229A (en) * | 2016-01-27 | 2016-05-11 | 大连理工大学 | Horizontal loading and guiding device for multilayer and multispan static model |
| CN205404277U (en) * | 2016-02-23 | 2016-07-27 | 河海大学 | Experimental loading device of equivalence equipartition area load |
| CN107014696A (en) * | 2017-05-22 | 2017-08-04 | 桂林理工大学 | Beams of concrete Indirect Loaded experimental rig |
| CN107543762A (en) * | 2017-07-10 | 2018-01-05 | 国网浙江省电力公司丽水供电公司 | A kind of fatigue experimental device and method for applying evenly load |
| CN108760288A (en) * | 2018-08-31 | 2018-11-06 | 山西航天清华装备有限责任公司 | Special-shaped type component loading device |
| CN109142047A (en) * | 2018-07-05 | 2019-01-04 | 华侨大学 | A kind of test method of the anti-fall performance of collapsing of fire underbeam-sub-structure |
-
2020
- 2020-12-24 CN CN202011550346.0A patent/CN112730080A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012337A (en) * | 2010-12-15 | 2011-04-13 | 山东大学 | Flexibility uniform distribution pressure loading device applicable to geomechanical model test |
| CN204679269U (en) * | 2015-06-12 | 2015-09-30 | 中国人民解放军理工大学 | A kind of pseudo static testing device |
| CN105575229A (en) * | 2016-01-27 | 2016-05-11 | 大连理工大学 | Horizontal loading and guiding device for multilayer and multispan static model |
| CN205404277U (en) * | 2016-02-23 | 2016-07-27 | 河海大学 | Experimental loading device of equivalence equipartition area load |
| CN107014696A (en) * | 2017-05-22 | 2017-08-04 | 桂林理工大学 | Beams of concrete Indirect Loaded experimental rig |
| CN107543762A (en) * | 2017-07-10 | 2018-01-05 | 国网浙江省电力公司丽水供电公司 | A kind of fatigue experimental device and method for applying evenly load |
| CN109142047A (en) * | 2018-07-05 | 2019-01-04 | 华侨大学 | A kind of test method of the anti-fall performance of collapsing of fire underbeam-sub-structure |
| CN108760288A (en) * | 2018-08-31 | 2018-11-06 | 山西航天清华装备有限责任公司 | Special-shaped type component loading device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664748A (en) * | 2023-09-28 | 2024-03-08 | 济南天辰试验机制造有限公司 | Uniform loading testing machine |
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Application publication date: 20210430 |