CN110296901A - A kind of composite force experimental rig being suitable for steel reinforced concrete special-shaped columns and method - Google Patents
A kind of composite force experimental rig being suitable for steel reinforced concrete special-shaped columns and method Download PDFInfo
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
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- 238000011068 loading method Methods 0.000 claims description 15
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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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
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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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
- G01N2203/0021—Torsional
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
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- 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
- G01N2203/0025—Shearing
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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
- G01N2203/0026—Combination of several types of applied forces
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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
- G01N2203/005—Electromagnetic means
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Abstract
The invention discloses a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns and methods, including the test specimen being fixed on testing stand, it is connect at the top of test specimen with cross steel beam with box shape, vertical electro-hydraulic servo actuator is provided between testing stand and cross steel beam with box shape；The side of test specimen is equipped with the horizontal electro-hydraulic servo actuator that a pair is connected on L shape counter force wall；Vertical electro-hydraulic servo actuator applies vertical load to test specimen by cross steel beam with box shape；Horizontal electro-hydraulic servo actuator applies shearing, moment of flexure and torque to test specimen by being located at the vertical girder steel of cross steel beam with box shape side.It is connect respectively with test specimen by testing stand, cross steel beam with box shape, the boundary condition of phantom frame column both ends consolidation；The displacement of horizontal actuator is adjusted, realizes the performance study under the pure torsion state of test specimen；The displacement of vertical actuator and horizontal actuator is adjusted simultaneously, realizes the performance study under test specimen composite force (Subjected To Compression, Bending, Shear, stretch bending are cut, Subjected To Compression, Bending, Shear And Torsion, draw bending and twisting) state.
Description
Technical field
The present invention relates to a kind of experiment loading unit, especially one kind to be capable of providing for steel reinforced concrete special-shaped columns compound
The experiment loading unit and method of stress.
Background technique
Special-shaped column structure is special because it has the advantages that indoor-bollard is stupefied non-bulging and is rapidly developed convenient for furniture installation
It is not in residential housing using relatively broad, the deep favor by property developer.The class formation is initially widely used
It is concrete profiled rod structure, but with the raising that people utilize soil space and building structure requires, high-rise and Super High
Building is rised sheer from level ground in Chinese the earth like the mushrooms after rain.At this point, the shortcomings that concrete profiled rod structure, as bearing capacity is low,
Limit value of axial compression ratio is small, ductility is poor etc., just displays.For its disadvantage, there is scholar to propose the layout type in special-shaped column section
Steel, thus to improve its bearing capacity and ductile performance, therefore steel reinforced concrete special-shaped columns structure is with regard to this birth.
For steel reinforced concrete special-shaped columns structure from after occurring, numerous researchers have carried out a large amount of test to its anti-seismic performance
Research and theory analysis, result of study show: compared to shaped rc columns, bearing capacity with higher and good
Good ductile performance.Therefore, steel reinforced concrete special-shaped columns structure is favored by country.It must be noted that special-shaped column section
Although particularity is building, beauty brings convenience, also brings simultaneously for its stress performance under geological process safe hidden
Suffer from.Under Stochastic Seismic Loading, just because of the irregular characteristic in its section, the stress performance in section becomes extremely complex, especially
It is the L shape column used generally as corner post.It therefore, is preferably popularization steel reinforced concrete special-shaped column structure in high fortification intensity area
And the application in high building structure, to its performance under complicated applied force state carry out research be very it is necessary to.
Special-Shaped Column due to section asymmetry, traditional cantilevered loading method unsuitable Special-Shaped Column anti-seismic performance examination
Test research.
Summary of the invention
To solve drawbacks described above existing in the prior art, the purpose of the present invention is to provide one kind can be to SRC abnormity
The experiment loading unit and method of column progress composite force research.Purpose is that Special-Shaped Column can be simulated by this loading device
The ideal boundary condition that both ends fixing end connects in frame structure, and simultaneously can be to Special-Shaped Column under compound stress
Performance is studied.
The present invention is realized by following technical proposals.
The present invention gives a kind of composite force experimental rigs for being suitable for steel reinforced concrete special-shaped columns, including L shape counter-force
Wall, testing stand, vertical electro-hydraulic servo actuator, horizontal electro-hydraulic servo actuator, box cross girder steel and vertical girder steel；The examination
It tests platform to be located at below L shape counter force wall, test specimen bottom is fixed on testing stand, and top is connect with cross steel beam with box shape, in testing stand
Vertical electro-hydraulic servo actuator is provided between cross steel beam with box shape；A pair, which is equipped with, in the side of test specimen is connected to L shape counter-force
Horizontal electro-hydraulic servo actuator on wall；Vertical electro-hydraulic servo actuator applies vertical lotus to test specimen by cross steel beam with box shape
It carries；Horizontal electro-hydraulic servo actuator applies shearing, moment of flexure to test specimen by being located at the vertical girder steel of the side of cross steel beam with box shape
And torque.
Further, the test specimen bottom is fixed on testing stand by foundation bolt, and top passes through high-strength bolt and cross
Steel beam with box shape connection；Rigid backing plate is lined on cross steel beam with box shape.
Further, the test specimen is a Special-Shaped Column, i.e., section is L shape, T shape or criss-cross structural column；Special-shaped capital
Portion is cantilever beam, and cross steel beam with box shape is connect by high-strength bolt with cantilever beam；Special-shaped column bottom is cross pedestal, cross
Pedestal is fixedly connected by foundation bolt with testing stand.
Further, four vertical electro-hydraulic servo actuators be respectively arranged on cross steel beam with box shape four arms and testing stand it
Between.
Further, the vertical girder steel of cross steel beam with box shape side is two, upper portion side wall and cross steel beam with box shape phase
It connects, horizontal electro-hydraulic servo actuator is two, and one end is withstood on L shape counter force wall respectively, and one end is withstood on vertical girder steel.
Further, shearing, moment of flexure and torque are applied to test specimen by adjusting the length of two horizontal electro-hydraulic servo actuators.
Further, the vertical girder steel of cross steel beam with box shape side is that the steel plate of multilayer parallel arrangement passes through connection two sides
Plate is constituted, and side plate is docked with horizontal electro-hydraulic servo actuator.
The present invention gives in turn to be tested using the composite force that described device be suitable for steel reinforced concrete special-shaped columns
Method includes the following steps:
1) before test load, adjustment is all vertically to electro-hydraulic servo actuator, makes its top in the same plane；
2) test specimen is fixed with cross steel beam with box shape and testing stand respectively；Vertical girder steel and cross steel beam with box shape are fixed；It adjusts
The acting surface height of whole horizontal direction electro-hydraulic servo actuator keeps it contour with the inflection point positioned at height of specimen midpoint, and and side
The vertical girder steel in portion is connected and fixed；
3) when test load, test specimen application can be cut by adjusting the displacement of two horizontal direction electro-hydraulic servo actuators
Power, moment of flexure and torque, to study performance of the component under different stresses；
4) when loading under pure torsion state, the actuator elongation of horizontal direction electro-hydraulic servo actuator makes it generate thrust,
Another actuator shortening make its generate pulling force, keep thrust equal with pulling force, and test specimen due to cross steel beam with box shape consolidation, by
Test specimen rotates along its centroid axis when power, the torque effect that test specimen itself is transmitted by cross steel beam with box shape；
5) when being loaded under Subjected To Compression, Bending, Shear state, the pulling force of four vertical electro-hydraulic servo actuators is adjusted to the design axis of test specimen
Pressure；Then two horizontal direction electro-hydraulic servo actuators are adjusted according to test Protonation constant, make it while generates thrust or pulling force,
And the thrust generated or pulling force moment are equal, and the load under Subjected To Compression, Bending, Shear state can be completed；
6) when being loaded under stretch bending scissor state, the thrust of four vertical electro-hydraulic servo actuators is adjusted to the design axis of test specimen
Pulling force；Then two horizontal direction electro-hydraulic servo actuators are adjusted according to test Protonation constant, make it while generates thrust or pulling force,
And the thrust generated or pulling force moment are equal, and the load under stretch bending scissor state can be completed；
7) when Subjected To Compression, Bending, Shear And Torsion composite force, according to design axis pressure, four vertical electro-hydraulic servo actuators of adjustment make its drawing
Power reaches design value；The length for adjusting two horizontal direction electro-hydraulic servo actuators makes it generate thrust or pulling force, two actuator
Thrust or pulling force it is unequal, i.e., the horizontal displacement of two horizontal actuator is unequal, can be completed under Subjected To Compression, Bending, Shear And Torsion state
Load；
8) when drawing bending and twisting composite force, according to design axis pulling force, four vertical electro-hydraulic servo actuators of adjustment push away it
Power reaches design value；The length for adjusting two horizontal direction electro-hydraulic servo actuators makes it generate thrust or pulling force, two actuator
Thrust or pulling force it is unequal, i.e., the horizontal displacement of two horizontal direction electro-hydraulic servo actuators is unequal, and stretch bending can be completed and cut
Load under torsion state.
Further, four vertical electro-hydraulic servo actuators can produce pulling force or thrust, and two horizontal direction electro-hydraulic servos are made
Dynamic device can produce thrust or pulling force, and size can be equal or unequal.
The present invention has the advantages that due to taking above technical scheme
Proposed invention device forms the boundary condition of fixing end constraint, energy in test piece upper part, lower part to test specimen respectively
Enough constrain its rotation in displacement deformation and vertical plane in the horizontal plane, ideal simulation frame column is in frame structure
True stress condition.Under pure torsion stress, is extended by horizontal actuator and shortening generates it around test specimen centroid axis
Torque；Under (drawing) the curved scissors state of pressure, the drawing for adjusting vertical actuator (pushes away) power extremely design axis pressure (drawing) power, then adjusts horizontal direction
Actuator makes it while generating pulling force or thrust, to form pressure (drawing) curved scissors stress；Press (drawing) bending and twisting combined state
Under, adjust vertical actuator drawing (push away) power to design axis pressure (drawings) power, then adjust horizontal direction actuator make its generation pulling force or
Thrust, the pulling force or thrust of two actuator are unequal, to form pressure (drawing) bending and twisting compound stress.It is above-mentioned it is several by
Power state can generate different function and effect by the displacement of control actuator, accuracy with higher and preferably may be used
Operability.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Inappropriate limitation of the present invention is constituted, in the accompanying drawings:
Fig. 1 is the schematic three dimensional views of composite force experiment loading unit.
In figure: 1, L shape counter force wall, 2, testing stand, 3, test specimen, 4, vertical girder steel, 5, cross steel beam with box shape, 6, vertical electro-hydraulic
Servo actuator, 7, horizontal electro-hydraulic servo actuator；8, foundation bolt, 9, high-strength bolt, 10, rigid backing plate.
Specific embodiment
Below in conjunction with attached drawing and specific embodiment, the present invention will be described in detail, herein illustrative examples of the invention
And explanation is used to explain the present invention, but not as a limitation of the invention.
As shown in Figure 1, a kind of stress test loading device suitable for steel reinforced concrete special-shaped columns of the invention, including L
It is shape counter force wall 1, testing stand 2, vertical electro-hydraulic servo actuator 6, horizontal electro-hydraulic servo actuator 7, cross steel beam with box shape 5, vertical
Girder steel 4, rigid backing plate 10, foundation bolt 8 and high-strength bolt 9.
Wherein, testing stand 2 is located at 1 lower section of L shape counter force wall, and experiment loading unit ontology is located on testing stand 2, test load
Device noumenon includes the test specimen 3 being placed on testing stand 2, and test specimen 3 is fixed on testing stand 2 by foundation bolt 8,3 top of test specimen
Cross steel beam with box shape 5 is connected by high-strength bolt 9；It is vertical electro-hydraulic there are four being set up between testing stand 2 and cross steel beam with box shape 5
Servo actuator 6；A pair of vertical girder steel 4, the outer end difference of a pair of vertical girder steel 4 are equipped in the side of cross steel beam with box shape 5
The horizontal electro-hydraulic servo actuator 7 being connected to equipped with a pair on L shape counter force wall 1.
Wherein, test specimen 3 is a Special-Shaped Column, i.e., it is outstanding at the top of Special-Shaped Column that section, which is L shape, T shape or criss-cross structural column,
Arm beam is connect with cross steel beam with box shape 5 by high-strength bolt 9, rigid backing plate 10, Special-Shaped Column bottom is lined on cross steel beam with box shape 5
Portion is cross pedestal, and cross pedestal is fixedly connected by foundation bolt 8 with testing stand 2.Four vertical electro-hydraulic servo actuations
Device 6 is respectively arranged between testing stand 2 and four arms of cross steel beam with box shape 5.
Wherein, vertical 4 upper portion side wall of girder steel connects with the side wall of cross steel beam with box shape 5, two horizontal electro-hydraulic servo actuations
One end is withstood on L shape counter force wall 1 device 7 respectively, and the other end is withstood on respectively on two vertical girder steels 4.
When the present apparatus works, before test load, adjustment is all vertically to electro-hydraulic servo actuator, makes its top same
In plane；High-strength bolt and foundation bolt and cross steel beam with box shape and test is respectively adopted by the bolt hole of own reservation in test specimen
Platform is fixed；Vertical girder steel and cross steel beam with box shape are fixed；The acting surface height for adjusting horizontal direction electro-hydraulic servo actuator, makes it
It is contour (i.e. the acting surface height of horizontal direction electro-hydraulic servo actuator is at the half of height of specimen) with the inflection point of test specimen,
And it is connected by screw bolts and is fixed with vertical girder steel.It, can be by adjusting two horizontal direction electro-hydraulic servo actuations when test load
The displacement of device applies shearing, moment of flexure and torque to test specimen, to study performance of the component under different stresses.
It is as follows that this loading device tests process:
1, test specimen 3 completes and after conserving, and is placed on testing stand 2；
2, the position for adjusting cross steel beam with box shape 5, makes it and completely attaches at the top of test specimen 3, pass through rigid backing plate 10 and height
9 fixed cross steel beam with box shape 5 of strength bolt and test specimen 3, form it into rigid connection；
3, the height for adjusting four vertical electro-hydraulic servo actuators 6 makes acting surface and cross steel beam with box shape 5 at the top of it
Bottom plane is in close contact；And the bolt hole by reserving on cross steel beam with box shape 5 and four vertical electro-hydraulic servo actuators connect
It connects, the height for finely tuning four vertical electro-hydraulic servo actuators again makes its xial feed tend to 0；
4, two vertical girder steels 4 are fixed by bolts in 5 side of cross steel beam with box shape, specific location can be needed by test
Load that the torque to be applied and two horizontal electro-hydraulic servo actuators 7 can be provided determines；
5, the height that will adjust horizontal electro-hydraulic servo actuator 7, it is contour with the inflection point of test specimen 3 to make it, and respectively with it is perpendicular
Straight girder steel 4 connects, and adjusts the load of two horizontal electro-hydraulic servo actuators 7, so that it is attributed to 0, so far experimental rig is complete
It debugs successfully entirely；
6, when test load, point five kinds of situations:
(1) when loading under pure torsion state, a horizontal elongation of electro-hydraulic servo actuator 7 makes it generate thrust, another water
The shortening of flat electro-hydraulic servo actuator 7 makes its generate pulling force so that thrust is equal with pulling force, and test specimen 3 due to cross box steel
Beam 5 consolidates, and test specimen rotates along its centroid axis when stress, the torque effect that test specimen 3 itself is transmitted by cross steel beam with box shape 5
It answers.
(2) when being loaded under Subjected To Compression, Bending, Shear state, the pulling force of four vertical electro-hydraulic servo actuators 6 is adjusted to design axis pressure
Power；Then two horizontal electro-hydraulic servo actuators 7 are adjusted according to test Protonation constant, keeps it tension or in compression simultaneously, and generate
Pulling force or the pressure moment it is equal, the load under Subjected To Compression, Bending, Shear state can be completed.
(3) when being loaded under stretch bending scissor state, the thrust of four vertical electro-hydraulic servo actuators 6 is adjusted to design axis and is drawn
Power；Then two horizontal electro-hydraulic servo actuators 7 are adjusted according to test Protonation constant, keeps it tension or in compression simultaneously, and generate
Pulling force or the pressure moment it is equal, the load under Subjected To Compression, Bending, Shear state can be completed.
(4) when loading under Subjected To Compression, Bending, Shear And Torsion state, according to design axis pressure, four vertical electro-hydraulic servo actuators 6 of adjustment make
Its pulling force reaches design value；The length for adjusting two horizontal electro-hydraulic servo actuators 7 makes it generate thrust or pulling force respectively, and two
The thrust or pulling force of a actuator are unequal, i.e., the horizontal displacement of two horizontal actuator is unequal, and Subjected To Compression, Bending, Shear And Torsion can be completed
Load under state.
Such as four vertical electro-hydraulic servo actuators 6 apply pulling force and test specimen are made to be pressurized, a horizontal electro-hydraulic servo actuator 7
Displacement 10mm is stretched out, another horizontal electro-hydraulic servo actuator 7 stretches out displacement 5mm, and two horizontal electro-hydraulic servo actuators 7 are simultaneously
Elongation shears test specimen and Moment, while again because stretching out the displacement effect so that test specimen twists such as not, to try
Part is in Subjected To Compression, Bending, Shear And Torsion compound stress.
(5) when loading under drawing bending and twisting state, according to design axis pulling force, four vertical electro-hydraulic servo actuators 6 of adjustment make
Its thrust reaches design value；The length for adjusting two horizontal electro-hydraulic servo actuators 7 makes it generate thrust or pulling force respectively, and two
The thrust or pulling force of a actuator are unequal, i.e., the horizontal displacement of two horizontal actuator is unequal, and drawing bending and twisting can be completed
Load under state.
Such as the four vertical application of electro-hydraulic servo actuators 6 thrusts make test specimen tension, a horizontal electro-hydraulic servo actuator 7
Displacement 10mm is stretched out, another horizontal electro-hydraulic servo actuator 7 stretches out displacement 5mm, and two new height electro-hydraulic servo actuators 7 are same
Shi Shenchang shears test specimen and Moment, while again because stretching out the displacement effect so that test specimen twists such as not, thus
Test specimen, which is in, draws bending and twisting compound stress.
The present invention passes through composite force test side according to the irregular characteristic in its section of steel reinforced concrete special-shaped columns structure
Method, can validity test steel reinforced concrete special-shaped columns under geological process different stress performances (pure torsion, Subjected To Compression, Bending, Shear, stretch bending cut,
Subjected To Compression, Bending, Shear And Torsion draws bending and twisting), bearing capacity and ductile performance, to set up defences to promote steel reinforced concrete special-shaped column structure in height
Application in intensity area and high building structure provides a kind of Experiment of Mechanical Behavior method.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little replacements and deformation, these replacements and deformation are within the scope of the invention.
Claims (9)
1. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns, which is characterized in that including L shape counter force wall
(1), testing stand (2), vertical electro-hydraulic servo actuator (6), horizontal electro-hydraulic servo actuator (7), cross steel beam with box shape (5) and perpendicular
Straight girder steel (4)；The testing stand (2) is located at below L shape counter force wall (1), and test specimen (3) bottom is fixed on testing stand (2), top
It is connect with cross steel beam with box shape (5), vertical electro-hydraulic servo actuation is provided between testing stand (2) and box cross girder steel (5)
Device (6)；A pair, which is equipped with, in the side of test specimen (3) is connected to the horizontal electro-hydraulic servo actuator (7) on L shape counter force wall (1)；Vertically
Electro-hydraulic servo actuator (6) applies vertical load to test specimen by cross steel beam with box shape (5)；Horizontal electro-hydraulic servo actuator (7)
Vertical girder steel (4) by being located at the side of cross steel beam with box shape (5) applies shearing, moment of flexure and torque to test specimen.
2. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns according to claim 1, feature
It is, test specimen (3) bottom is fixed on testing stand (2) by foundation bolt (8), and top passes through high-strength bolt (9) and ten
Word steel beam with box shape (5) connection；Rigid backing plate (10) are lined on cross steel beam with box shape (5).
3. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns according to claim 1, feature
It is, the test specimen (3) is a Special-Shaped Column, i.e., section is L shape, T shape or criss-cross structural column；It is cantilever at the top of Special-Shaped Column
Beam, cross steel beam with box shape (5) are connect by high-strength bolt (9) with cantilever beam；Special-shaped column bottom is cross pedestal, cross base
Seat is fixedly connected by foundation bolt (8) with testing stand (2).
4. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns according to claim 1, feature
It is, four vertical electro-hydraulic servo actuators (6) are respectively arranged between four arms of cross steel beam with box shape (5) and testing stand (2).
5. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns according to claim 1, feature
It is, the vertical girder steel (4) of cross steel beam with box shape (5) side is two, upper portion side wall and cross steel beam with box shape (5) phase
It connects, horizontal electro-hydraulic servo actuator (7) is two, and one end is withstood on L shape counter force wall (1) respectively, and one end withstands on vertical girder steel
(4) on.
6. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns according to claim 5, feature
It is, the length by adjusting two horizontal electro-hydraulic servo actuators (7) applies shearing, moment of flexure and torque to test specimen.
7. a kind of composite force experimental rig for being suitable for steel reinforced concrete special-shaped columns according to claim 5, feature
It is, the vertical girder steel (4) of the side of the cross steel beam with box shape (5) is that the steel plate of multilayer parallel arrangement passes through connection both side plate
It constitutes, side plate is docked with horizontal electro-hydraulic servo actuator (7).
8. a kind of any one of claim 1-7 described device carries out the composite force test side for being suitable for steel reinforced concrete special-shaped columns
Method, which comprises the steps of:
1) before test load, adjustment is all vertically to electro-hydraulic servo actuator (6), makes its top in the same plane；
2) test specimen (3) is fixed with cross steel beam with box shape (5) and testing stand (2) respectively；By vertical girder steel (4) and cross steel beam with box shape
(5) fixed；The acting surface height for adjusting horizontal direction electro-hydraulic servo actuator (7) makes it and is located at the anti-of test specimen (3) height midpoint
Curved point is contour, and is connected and fixed with the vertical girder steel in side (4)；
3) when test load, test specimen application can be cut by adjusting the displacement of two horizontal direction electro-hydraulic servo actuators (7)
Power, moment of flexure and torque, to study performance of the component under different stresses；
4) when loading under pure torsion state, the actuator elongation of horizontal direction electro-hydraulic servo actuator (7) makes it generate thrust, separately
One actuator shortening makes it generate pulling force, keeps thrust equal with pulling force, and test specimen (3) is due to solid with cross steel beam with box shape (5)
Knot, test specimen rotates along its centroid axis when stress, the torque effect that test specimen (3) is transmitted itself by cross steel beam with box shape (5)；
5) when being loaded under Subjected To Compression, Bending, Shear state, the pulling force of four vertical electro-hydraulic servo actuators (6) is adjusted to the design axis of test specimen
Pressure；Then two horizontal direction electro-hydraulic servo actuators (7) are adjusted according to test Protonation constant, makes it while generates thrust or drawing
Power, and the thrust generated or pulling force moment are equal, and the load under Subjected To Compression, Bending, Shear state can be completed；
6) when being loaded under stretch bending scissor state, the thrust of four vertical electro-hydraulic servo actuators (6) is adjusted to the design axis of test specimen
Pulling force；Then two horizontal direction electro-hydraulic servo actuators (7) are adjusted according to test Protonation constant, makes it while generates thrust or drawing
Power, and the thrust generated or pulling force moment are equal, and the load under stretch bending scissor state can be completed；
7) when Subjected To Compression, Bending, Shear And Torsion composite force, according to design axis pressure, four vertical electro-hydraulic servo actuators (6) of adjustment make its pulling force
Reach design value；The length for adjusting two horizontal direction electro-hydraulic servo actuators (7) makes it generate thrust or pulling force, two actuations
The thrust or pulling force of device are unequal, i.e., the horizontal displacement of two horizontal actuator is unequal, can be completed under Subjected To Compression, Bending, Shear And Torsion state
Load；
8) when drawing bending and twisting composite force, according to design axis pulling force, four vertical electro-hydraulic servo actuators (6) of adjustment make its thrust
Reach design value；The length for adjusting two horizontal direction electro-hydraulic servo actuators makes it generate thrust or pulling force, two actuator
Thrust or pulling force are unequal, i.e., the horizontal displacement of two horizontal direction electro-hydraulic servo actuators is unequal, and drawing bending and twisting can be completed
Load under state.
9. the composite force test method according to claim 8 for being suitable for steel reinforced concrete special-shaped columns, which is characterized in that
Four vertical electro-hydraulic servo actuators (6) can produce thrust or pulling force, and two horizontal direction electro-hydraulic servo actuators (7) can produce
Raw thrust or pulling force, and size can be equal or unequal.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051133A (en) * | 2020-09-03 | 2020-12-08 | 华北科技学院 | Loading system for mechanical simulation test |
| CN112213089A (en) * | 2020-09-22 | 2021-01-12 | 中联重科股份有限公司 | Arm support fatigue test device and method |
| CN116718497A (en) * | 2023-07-17 | 2023-09-08 | 天津大学 | Mechanical property testing device for special-shaped node sample |
| CN117433906A (en) * | 2023-12-19 | 2024-01-23 | 华侨大学 | Loading device and loading method of three-dimensional photoelastic model |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398908A (en) * | 2013-08-06 | 2013-11-20 | 清华大学 | Steel-concrete composite column anti-seismic anti-torsion test loading device and manufacturing method thereof |
| CN105258890A (en) * | 2015-11-20 | 2016-01-20 | 天津大学 | Device for testing anti-seismic performance of shear wall under tension, bending and shear composite action |
| WO2018052132A1 (en) * | 2016-09-15 | 2018-03-22 | 国立大学法人東京工業大学 | Triaxial dynamic testing machine |
| CN108896400A (en) * | 2018-08-01 | 2018-11-27 | 同济大学 | A kind of structural testing system applying tension and compression curved scissors power |
| CN109341997A (en) * | 2018-11-26 | 2019-02-15 | 中铁第勘察设计院集团有限公司 | Complete asymmetric cross-shaped profile steel concrete joint Experimental Study on Seismic Behavior device |
| CN109406123A (en) * | 2018-11-16 | 2019-03-01 | 青岛理工大学 | Dynamic and static multifunctional test servo loading system |
| CN210427247U (en) * | 2019-07-31 | 2020-04-28 | 西安建筑科技大学 | Composite stress test device suitable for steel reinforced concrete special-shaped column |
-
2019
- 2019-07-31 CN CN201910704169.8A patent/CN110296901A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398908A (en) * | 2013-08-06 | 2013-11-20 | 清华大学 | Steel-concrete composite column anti-seismic anti-torsion test loading device and manufacturing method thereof |
| CN105258890A (en) * | 2015-11-20 | 2016-01-20 | 天津大学 | Device for testing anti-seismic performance of shear wall under tension, bending and shear composite action |
| WO2018052132A1 (en) * | 2016-09-15 | 2018-03-22 | 国立大学法人東京工業大学 | Triaxial dynamic testing machine |
| CN108896400A (en) * | 2018-08-01 | 2018-11-27 | 同济大学 | A kind of structural testing system applying tension and compression curved scissors power |
| CN109406123A (en) * | 2018-11-16 | 2019-03-01 | 青岛理工大学 | Dynamic and static multifunctional test servo loading system |
| CN109341997A (en) * | 2018-11-26 | 2019-02-15 | 中铁第勘察设计院集团有限公司 | Complete asymmetric cross-shaped profile steel concrete joint Experimental Study on Seismic Behavior device |
| CN210427247U (en) * | 2019-07-31 | 2020-04-28 | 西安建筑科技大学 | Composite stress test device suitable for steel reinforced concrete special-shaped column |
Non-Patent Citations (4)
| Title |
|---|
| 薛建阳;刘义;赵鸿铁;陈宗平;: "型钢混凝土异形柱框架节点承载力试验研究", 土木工程学报, no. 05, 31 May 2011 (2011-05-31), pages 41 - 48 * |
| 陈宗平;薛建阳;苏益声;赵鸿铁;: "反复荷载作用下型钢混凝土L形柱的受力性能", 地震工程与工程振动, no. 06, 31 December 2009 (2009-12-31), pages 121 - 129 * |
| 陈宗平;薛建阳;赵鸿铁;: "十字形SRC异形柱受力性能及强度计算", 建筑结构, no. 07, 31 July 2010 (2010-07-31), pages 92 - 95 * |
| 陈宗平;陈宇良;覃文月;薛建阳;漆成;: "型钢再生混凝土梁受弯性能试验及承载力计算", 工业建筑, no. 09, 30 September 2013 (2013-09-30), pages 12 - 16 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051133A (en) * | 2020-09-03 | 2020-12-08 | 华北科技学院 | Loading system for mechanical simulation test |
| CN112051133B (en) * | 2020-09-03 | 2024-04-05 | 华北科技学院 | Loading system for mechanical simulation test |
| CN112213089A (en) * | 2020-09-22 | 2021-01-12 | 中联重科股份有限公司 | Arm support fatigue test device and method |
| CN112213089B (en) * | 2020-09-22 | 2021-11-26 | 中联重科股份有限公司 | Arm support fatigue test device and method |
| CN116718497A (en) * | 2023-07-17 | 2023-09-08 | 天津大学 | Mechanical property testing device for special-shaped node sample |
| CN117433906A (en) * | 2023-12-19 | 2024-01-23 | 华侨大学 | Loading device and loading method of three-dimensional photoelastic model |
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