CN107167386A - A kind of structural elements vertical load loading device and loading method - Google Patents
A kind of structural elements vertical load loading device and loading method Download PDFInfo
- Publication number
- CN107167386A CN107167386A CN201710601284.3A CN201710601284A CN107167386A CN 107167386 A CN107167386 A CN 107167386A CN 201710601284 A CN201710601284 A CN 201710601284A CN 107167386 A CN107167386 A CN 107167386A
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- China
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- vertical load
- test specimen
- hydraulic jack
- structural elements
- reaction beam
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Classifications
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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
-
- 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
-
- 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
Abstract
The invention discloses a kind of structural elements vertical load loading device and loading method, device includes reaction beam, hydraulic jack, high-strength bolt, vertical load simulation truss, reinforcement, grade beam, foundation bolt, oil sources, oil pipe, controller and computer；At the top of test specimen and reaction beam bottom consolidation, as being hinged at the top of test requirements document test specimen, a hinged base device can be increased in reaction beam lower end, hydraulic jack upper end is fixedly connected with reaction beam lower end by high-strength bolt, lower end and vertical load simulation truss are closely connected, and ground soffit and ground include force snesor by fastening foundation bolt in hydraulic jack, real-time vertical force can be read, vertical load value size can be accurately obtained.When test specimen occurred level is deformed, axial compressive force direction keeps constant.Have the advantages that stress clearly, it is convenient disassembly, simple to operate, safe and reliable.
Description
【Technical field】
The invention belongs to loading test loading technique field, it is related to a kind of structural elements vertical load loading device and loading
Method.
【Background technology】
Structural test is research structure performance and the topmost approach of mechanical characteristics, and accurate simulation structure is under actual condition
Load be success of the test basis.At this stage, axial compression ratio of the structural elements in hysteresis loading procedure generally remain it is constant, i.e.,
Vertical load is constant, and it is real that vertical force mainly applies stressed method by the way of suspension weight or by hydraulic jack
It is existing.When larger load is hung, unexpected unstability easily occurs for structure, and danger coefficient is higher；And when sidesway occurs for structure,
The pressure that hydraulic jack applies can not keep fixed numerical value, while there is the problem that hydraulic jack is not fixed easily.These
Problem can all directly affect the accuracy of structural test.
【The content of the invention】
In order to overcome the above-mentioned deficiencies of the prior art, add it is an object of the invention to provide a kind of structural elements vertical load
Carry and put and loading method.The present invention simulates truss, reinforcement and grade beam etc. by hydraulic jack, reaction beam, vertical load
The loading device of composition, carry out vertical load loading, can accurately obtain vertical load value, with power transmission clearly, convenient disassembly,
Simple to operate, safe and reliable advantage.
In order to solve the above-mentioned technical problem, the present invention proposes following technical scheme：
A kind of structural elements vertical load loading device, including data collecting system and at the top of the test specimen placed vertically
Reaction beam, the top of test specimen is connected with the middle part of reaction beam bottom, and the bottom at reaction beam two ends is symmetrically connected with for exerting a force
Hydraulic jack, the force snesor for being used for showing power is provided with hydraulic jack, hydraulic jack connects with data collecting system
Connect；The lower end of hydraulic jack, which is connected with, can make test specimen keep bearing the vertical of constant vertical force during by axial force
Load Simulation truss, the bottom of vertical load simulation truss is fixedly installed.
The top of the test specimen is hinged or is fixedly connected with reaction beam.
Pass through the connection for adjusting hydraulic jack overhead height between the top of the hydraulic jack and reaction beam
Head connection.
The vertical load simulation truss includes V-type bar, and downwards, free end is set up, hydraulic jack on V-type bar top
Lower end be hinged with V-type bar top, be hinged with connecting rod on the free end of V-type bar, the lower end of connecting rod and the fixation being fixedly installed
Hinge is hinged, and connecting rod is symmetrical on V-type bar.
Reinforcement is connected between the fixed hinge of same Pin vertical load simulation truss connection.
The fixed hinge of two Pin vertical loads simulation truss connection is fixedly installed on grade beam by the second high-strength bolt, grade beam
Parallel with reaction beam, grade beam is fixedly connected with the ground by foundation bolt.
The data collecting system includes being connected with oil sources and computer on controller, controller, and oil sources passes through oil pipe and liquid
Press jack connection.
A kind of structural elements vertical load loading method：
After test specimen is connected with vertical load loading device, the hydraulic pressure thousand at reaction beam two ends is controlled by data collecting system
Reaction beam is pulled downward in jin top synchronous, hydraulic jack contraction process and applies xial feed to test specimen, and test specimen is being born
During xial feed, if test specimen is conjugated, vertical load simulation truss makes the Impact direction of test specimen begin by deforming
Eventually straight down.
When test specimen is conjugated, vertical load simulation truss V-type bar rotated with connecting rod in articulated section, connecting rod and
Fixed hinge is rotated, and can discharge perpendicular by the rotation between the rotation between V-type bar and connecting rod and connecting rod and fixed hinge
The moment of torsion produced to Load Simulation truss by the displacement of test specimen, and then make the Impact direction of test specimen all the time straight down.
The invention has the advantages that：
The present invention is located at the middle part of reaction beam bottom, the bottom pair at two ends by connecting reaction beam, test specimen at the top of test specimen
Claim to be connected with the hydraulic jack for force, the lower end of hydraulic jack, which is connected with, can make test specimen during by axial force
Keep bearing the vertical load simulation truss of constant vertical force, the bottom of vertical load simulation truss is fixedly installed, therefore, this
Invention controls two specification identical synchronous hydra-ulic jacks to be loaded by data collecting system, and jack device is all carried
Voltage-stabilizing system, when test specimen occurred level displacement, can also keep constant vertical force, be controlled out by data collecting system
Oil mass can flexible modulation hydraulic jack stroke, high-precision control is realized by data collecting system in loading procedure；
During test specimen occurred level displacement, vertical load simulation truss can simultaneously be conjugated with test specimen, therefore, it is possible to keep on test specimen
The vertical direction of load, test device disassembly and assembly of the present invention is convenient, safe and reliable, makes the stress of test specimen closer to reality
Engineering, instant invention overcomes hydraulic jack in the prior art and the shortcoming of hoisted load mode, and can accurately read vertical
Payload values, with stronger realistic meaning.
Further, by for adjusting at the top of hydraulic jack between the top of hydraulic jack of the invention and reaction beam
The connector connection of height, when test specimen overhead height changes, connector can adjust hydraulic jack to make hydraulic pressure thousand
Same level is remained at the top of the top on jin top and test specimen.
Further, the fixed hinge in the bottom of vertical load simulation truss two is connected by the second high-strength bolt and grade beam, when
When test specimen takes up too much space, the distance between two Pin vertical loads simulation truss can be adjusted to meet test requirements document.
【Brief description of the drawings】
Fig. 1 is the overall structure stereogram of the present invention；
Fig. 2 is the front elevation of the present invention；
Fig. 3 is the data collecting system schematic diagram of the present invention；
Fig. 4 is the stress diagram of the present invention.
Wherein, 1 it is reaction beam, 2 be high-strength bolt, 3 be hydraulic jack, 4 is that vertical load simulation truss, 4-1 are V-type
Bar, 4-2 are that connecting rod, 4-3 are reinforcing bar, 5 are test specimen, 6 are reinforcement, 7 are removable hinge, 8 are fixed hinge, 9 are grade beam, 10 are
Foundation bolt, 11 be the second high-strength bolt, 12 be oil pipe, 13 be oil sources, 14 be wire, 15 be controller, 16 be computer.
【Embodiment】
The present invention is described in further detail below in conjunction with the accompanying drawings.
With reference to Fig. 1, Fig. 2 and Fig. 3, structural elements vertical load loading device of the present invention, device includes reaction beam
1st, hydraulic jack 3, high-strength bolt 2, vertical load simulation truss 4, reinforcement 6, grade beam 9, foundation bolt 10, oil sources 13, oil
Pipe 12, controller 15 and computer 16；Grade beam 9 is fixedly mounted on the ground by the ground of foundation bolt 1, and two Pin vertical loads are simulated
Truss 4 and the top of grade beam 9 are fastenedly connected by the second high-strength bolt 11, according to the different sizes of test specimen 5, adjust the vertical lotuses of two Pin
The spacing of simulation truss 4 is carried, when test specimen takes up too much space, the distance between two Pin vertical loads simulation truss can be adjusted
To meet test requirements document；The bottom of hydraulic jack 3 (piston termination) and vertical load simulation truss 4 are connected, make it with respect to it
Between it is immovable.Reaction beam 1 is arranged in the upper end (top of cylinder body) of two hydraulic jacks 3, is connected by high-strength bolt 2
Connect；The test specimen 5 for testing loading is finally fixed on loading position, the upper end of test specimen 5 is suitably changed with according to different boundary conditions
The support style at end, reinforcement 6, reaction beam 1 and grade beam 9 are I-beam.
The top of test specimen 5 is connected with the middle part of the bottom of reaction beam 1, and the top of test specimen 5 is hinged or is fixedly connected with reaction beam 1
(selecting connected mode with specific reference to requirement of experiment), the bottom at the two ends of reaction beam 1 is symmetrically connected with the hydraulic pressure thousand for force
Force snesor is provided with jin top 3, hydraulic jack 3, force snesor can read the size of real-time vertical force, data collecting system
Controller 15 on be connected with oil sources 13 and computer 16, oil sources 13 is connected by oil pipe 12 with hydraulic jack 3；Hydraulic jack
3 lower end is connected with the vertical load simulation purlin that test specimen 5 can be made to keep bearing constant vertical force during by axial force
Frame 4, vertical load simulation truss 4 includes V-type bar 4-1, and downwards, free end is set up, V-type bar 4-1's on V-type bar 4-1 tops
It is fixedly connected between free end by reinforcing bar 4-3, lower end and the V-type bar 4-1 tops of hydraulic jack 3 are hinged, V-type bar 4-1
Free end be hinged with connecting rod 4-2, connecting rod 4-2 lower end is hinged with the fixed hinge 8 being fixedly installed, and connecting rod 4-2 is on V-type bar 4-
1 is symmetrical and set in reverse V-shaped, is connected between the fixed hinge 8 that same Pin vertical load simulation truss 4 is connected by reinforcement 6,
Reinforcement 6 is hinged with fixed hinge 8, and the fixed hinge 8 that two Pin vertical loads simulation truss 4 is connected is fixedly installed on grade beam 9, grade beam
9 is parallel with reaction beam 1, and grade beam 9 is fixedly connected with the ground by foundation bolt 10.
When being changed at the top of test specimen, connector is increased in hydraulic jack top ends, to adjust at the top of hydraulic jack
Same level is remained at test specimen top.
Exerting oneself for each hydraulic jack needs is calculated according to formula F=P/n, wherein F is the drawing of each hydraulic jack
Power, P is the vertical load needed for test specimen, and n is jack quantity, and the present invention is using two hydraulic jacks, therefore n is 2, is started
After oil sources, it can be further applied load to steady state value for hydraulic jack and keep fixed.
With reference to Fig. 4, wherein dotted line is the situation that vertical load simulates truss 4 when test specimen 5 is not deformed, occurs water in test specimen 5
Prosposition move when, vertical load simulation truss 4 as shown by the solid line, during test specimen 5 is conjugated, its vertical force born by
All the time straight down, fixed shortcoming can not be kept to force direction by efficiently solving the vertical force direction of other load modes.
The method loaded by the structural elements vertical load loading device of the present invention：
After test specimen 5 is connected with vertical load loading device, the hydraulic pressure at the two ends of reaction beam 1 is controlled by data collecting system
Reaction beam 1 is pulled downward in the synchronous of jack 3, the contraction process of hydraulic jack 3 and applies xial feed, test specimen 5 to test specimen 5
During xial feed is born, if test specimen 5 is conjugated, when test specimen 5 is conjugated, vertical load simulates the V-type of truss 4
Bar 4-1 is rotated with connecting rod 4-2 in articulated section, and connecting rod 4-2 is rotated with fixed hinge 8, passes through V-type bar 4-1 and connecting rod 4-2
Between rotation and connecting rod 4-2 and fixed hinge 8 between rotation can discharge vertical load simulation truss 4 because of the change of test specimen 5
Position and the moment of torsion produced, and then make the Impact direction of test specimen 5 all the time straight down；If test specimen 5 is not conjugated, vertical load
Simulation truss 4 is maintained as symmetrical structure.
Claims (9)
1. a kind of structural elements vertical load loading device, it is characterised in that including data collecting system and positioned at vertical placement
Test specimen (5) at the top of reaction beam (1), the top of test specimen (5) is connected with the middle part of reaction beam (1) bottom, reaction beam (1) two ends
Bottom be symmetrically connected with the power sensing for being provided with hydraulic jack (3) for force, hydraulic jack (3) and being used to show power
Device, hydraulic jack (3) is connected with data collecting system；The lower end of hydraulic jack (3) be connected with can make test specimen (5) by
Keep bearing the vertical load simulation truss (4) of constant vertical force, the bottom of vertical load simulation truss (4) during axial force
Portion is fixedly installed.
2. a kind of structural elements vertical load loading device according to claim 1, it is characterised in that the test specimen (5)
Top be hinged or be fixedly connected with reaction beam (1).
3. a kind of structural elements vertical load loading device according to claim 2, it is characterised in that the hydraulic jack
Push up and be connected between the top of (3) and reaction beam (1) by the connector for adjusting hydraulic jack overhead height.
4. a kind of structural elements vertical load loading device according to claim 1, it is characterised in that the vertical load
Simulating truss (4) includes V-type bar (4-1), and downwards, free end is set up, under hydraulic jack (3) on V-type bar (4-1) top
End is hinged with V-type bar (4-1) top, and connecting rod (4-2), the lower end of connecting rod (4-2) are hinged with the free end of V-type bar (4-1)
It is hinged with the fixed hinge (8) that is fixedly installed, connecting rod (4-2) is symmetrical on V-type bar (4-1).
5. a kind of structural elements vertical load loading device according to claim 4, it is characterised in that same Pin's is vertical
Reinforcement (6) is connected between fixed hinge (8) on Load Simulation truss (4).
6. a kind of structural elements vertical load loading device according to claim 4, it is characterised in that also set including fixation
Fixed hinge (8) on the grade beam (9) put, two Pin vertical loads simulation truss (4) is fixedly installed by the second high-strength bolt (11)
On grade beam (9), grade beam (9) is parallel with reaction beam (1), and grade beam (9) is fixedly connected with the ground by foundation bolt (10).
7. a kind of structural elements vertical load loading device according to claim 1, it is characterised in that the data acquisition
System includes being connected with oil sources (13) and computer (16) on controller (15), controller (15), and oil sources (13) passes through oil pipe (12)
It is connected with hydraulic jack (3).
8. a kind of loading method of structural elements vertical load loading device by described in claim 1, it is characterised in that：
After test specimen (5) is connected with vertical load loading device, the hydraulic pressure at reaction beam (1) two ends is controlled by data collecting system
Reaction beam (1) is pulled downward in jack (3) synchronous, hydraulic jack (3) contraction process and applies axial lotus to test specimen (5)
Carry, test specimen (5) is during xial feed is born, if test specimen (5) is conjugated, vertical load simulation truss (4) is by becoming
Shape makes the Impact direction of test specimen (5) all the time straight down.
9. a kind of structural elements vertical load loading method according to claim 8, it is characterised in that when test specimen 5 occurs
During displacement, vertical load simulation truss (4) V-type bar (4-1) rotated with connecting rod (4-2) in articulated section, connecting rod (4-2) and
Fixed hinge (8) rotates, and passes through the rotation between V-type bar (4-1) and connecting rod (4-2) and connecting rod (4-2) and fixed hinge (8)
Between rotation can discharge vertical load simulation truss (4) moment of torsion for being produced by the displacement of test specimen (5), and then make test specimen
(5) Impact direction is all the time straight down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601284.3A CN107167386B (en) | 2017-07-21 | 2017-07-21 | Vertical load loading device and loading method for structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601284.3A CN107167386B (en) | 2017-07-21 | 2017-07-21 | Vertical load loading device and loading method for structural member |
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| CN107167386A true CN107167386A (en) | 2017-09-15 |
| CN107167386B CN107167386B (en) | 2023-03-31 |
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| CN201710601284.3A Active CN107167386B (en) | 2017-07-21 | 2017-07-21 | Vertical load loading device and loading method for structural member |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152119A (en) * | 2017-12-22 | 2018-06-12 | 西安交通大学 | A kind of multidirectional loading device of general K shapes node and method |
| CN108254176A (en) * | 2018-02-07 | 2018-07-06 | 新誉集团有限公司 | Structural member strength testing device and double K node structural member strength test methods |
| CN110108562A (en) * | 2019-05-29 | 2019-08-09 | 西安建筑科技大学 | A kind of bearing diagonal node slip resistance experiment static force loading device and loading method |
| CN110274820A (en) * | 2019-07-29 | 2019-09-24 | 山东建筑大学 | A kind of Vierendeel girder inflection point pseudo-static experimental test piece fixing device |
| CN110926977A (en) * | 2019-12-11 | 2020-03-27 | 西南交通大学 | Vertical loading device with horizontal sliding function |
| CN112082865A (en) * | 2020-09-14 | 2020-12-15 | 哈尔滨工程大学 | Novel device for buckling test of inclined strut |
| CN113029754A (en) * | 2021-03-23 | 2021-06-25 | 新疆维吾尔自治区煤田地质局一六一队新能开发总公司机修厂 | Voltage-stabilizing loading device |
| CN113252456A (en) * | 2021-04-12 | 2021-08-13 | 哈尔滨工业大学 | Variable-angle eccentric loading test device for truss structure |
| CN115791402A (en) * | 2022-12-08 | 2023-03-14 | 武汉理工大学 | Multi-directional coupling visual pile anchor loading device and pile anchor loading method |
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| CN104807694A (en) * | 2015-05-04 | 2015-07-29 | 中国飞机强度研究所 | Fuselage panel combined load test device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152119A (en) * | 2017-12-22 | 2018-06-12 | 西安交通大学 | A kind of multidirectional loading device of general K shapes node and method |
| CN108254176A (en) * | 2018-02-07 | 2018-07-06 | 新誉集团有限公司 | Structural member strength testing device and double K node structural member strength test methods |
| CN110108562A (en) * | 2019-05-29 | 2019-08-09 | 西安建筑科技大学 | A kind of bearing diagonal node slip resistance experiment static force loading device and loading method |
| CN110274820B (en) * | 2019-07-29 | 2024-03-12 | 山东建筑大学 | Test piece fixing device for static test is planned to frame roof beam bending point |
| CN110274820A (en) * | 2019-07-29 | 2019-09-24 | 山东建筑大学 | A kind of Vierendeel girder inflection point pseudo-static experimental test piece fixing device |
| CN110926977A (en) * | 2019-12-11 | 2020-03-27 | 西南交通大学 | Vertical loading device with horizontal sliding function |
| CN110926977B (en) * | 2019-12-11 | 2021-06-29 | 西南交通大学 | Vertical loading device with horizontal sliding function |
| CN112082865A (en) * | 2020-09-14 | 2020-12-15 | 哈尔滨工程大学 | Novel device for buckling test of inclined strut |
| CN113029754A (en) * | 2021-03-23 | 2021-06-25 | 新疆维吾尔自治区煤田地质局一六一队新能开发总公司机修厂 | Voltage-stabilizing loading device |
| CN113252456B (en) * | 2021-04-12 | 2022-10-04 | 哈尔滨工业大学 | Variable-angle eccentric loading test device for truss structure |
| CN113252456A (en) * | 2021-04-12 | 2021-08-13 | 哈尔滨工业大学 | Variable-angle eccentric loading test device for truss structure |
| CN115791402A (en) * | 2022-12-08 | 2023-03-14 | 武汉理工大学 | Multi-directional coupling visual pile anchor loading device and pile anchor loading method |
| CN115791402B (en) * | 2022-12-08 | 2024-02-09 | 武汉理工大学 | Multidirectional coupling visualized pile anchor loading device and pile anchor loading method |
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