CN109855984A - A kind of unidirectional compression shear loading device and its application method - Google Patents
A kind of unidirectional compression shear loading device and its application method Download PDFInfo
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Abstract
A kind of unidirectional compression shear loading device and its application method, unidirectional compression shear loading device includes testpieces and the counterforce structure for being enclosed in testpieces surrounding, counterforce structure includes the horizontal reacting force floor on the downside of testpieces, counter force wall on the right side of testpieces, the vertical pull rod of prestressing force on the left of testpieces and the horizontal boom reaction beam on the upside of testpieces, counterforce structure forms self-balancing stress system, the top of testpieces is equipped with horizontal addload beam, vertical loading structure is connected between horizontal addload beam and horizontal boom reaction beam, the horizontal addload structure for being applied to loading beam horizontal force is connected between horizontal addload beam and counter force wall.Present invention combination counter force wall and counter-force bottom plate design a kind of cantilever beam and prestressed steel bar while the self-balancing counterforce device used, facilitate and carry out vertical force load.It plays a key effect to the vertical gravity of real simulation, central role is played to the reasonability and feasibility of evaluation component Experimental Study on Seismic Behavior.
Description
Technical field
The present invention relates to a kind of test block loading device, especially a kind of unidirectional compression shear load testing machine and its user
Method.
Background technique
Field, the energy dissipation capacity of frequent test member, to increase the Energy Dissipation Mechanism to component and resist are tested in civil engineering
The exploration and understanding of shake ability.Most of component test is loaded using unidirectional compression shear, wherein the lotus of pressure main analog upper part
It carries, shears the geological process of main analog, the anti-seismic performance of component is assessed with this.For small members, traditional pressure
Scissor test generallys use the mode of setting reaction frame, and reaction frame is fixed on counter-force floor, and oil pressure is used at the top of reaction frame
The mode of jack carries out vertical force load to test specimen.
The advantages of this loading method: can simulate top gravity, and can simulate due to weight at the top of the deformation of member
The P- △ second-order effects that power generates.The disadvantage is that: cannot do the unidirectional compression-shear test of tall and big component, main cause be reaction frame not
What can be designed is very big, otherwise will face the lifting difficulty of reaction frame and the less economical problem of reaction frame.
Therefore reaction frame cannot design relatively high.However for some tall and big large-scale components, using reaction frame load side
Formula, not only having seemed heavy is inconvenient to install, but also compares consuming financial resource and material resource.Currently, being directed to this relatively high large-scale component, use
Prestressed steel bar loading method is fixed on counter-force floor using prestressed steel bar one end, the other end is added in component top, is used
The gravity at this kind of loading method simulation top.
The advantages of this kind of loading method: easy to operate, better economy.But its disadvantage is also apparent: due to loading
The prestressed steel bar of bottom is anchored on counter-force floor in journey, and the rod iron at top is moved with loading beam.It directly results in
Can not simulate P- △ effect, and the P- △ effect of tall and big component be it is obvious, cannot ignore.Even more important
It is that, using the loading method of prestressed steel bar, the mechanical state for directly resulting in tested component changes, directly results in structure
Part rigidity becomes larger.Test specimen is tested as a whole with vertical prestressing rod iron, one new system of formation, that is, external
Prestressed component, has been directly changed the energy consumption state and failure mechanism of component, and the assessment for seriously affecting component anti-seismic performance is accurate
Property and reasonability, reasonable Assessment of Seismic Vulnerability can not be carried out according to test result.Therefore the vertical of large-scale tall and big component is added
It carries power applying mode to need to improve, finds a kind of a kind of reasonable, easy for installation, the economically viable loading method of mechanics.
Summary of the invention
The object of the present invention is to provide a kind of unidirectional compression shear loading device and its application methods, to solve the load to test specimen
Using single reaction frame there is technical issues that tall and big component cannot be done unidirectional in mode, also to solve to test specimen
Loading method in there is top rod iron using single prestressed steel bar and can not simulate P- △ effect with loading beam movement
The technical issues of.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of unidirectional compression shear loading device, including testpieces and the counterforce structure for being enclosed in testpieces surrounding, the counterforce structure
Including the horizontal reacting force floor on the downside of testpieces, the counter force wall on the right side of testpieces, the vertical pull rod of the prestressing force on the left of testpieces and
Horizontal boom reaction beam on the upside of testpieces, counterforce structure form self-balancing stress system,
The horizontal reacting force floor and counter force wall are integrally formed, and the two is L-shaped, the right side of the horizontal boom reaction beam and anti-
Power coping is fixedly connected, the fixed company in the left part of the horizontal boom reaction beam and the top end part of the vertical pull rod of prestressing force
Connect, the bottom end of the vertical pull rod of prestressing force through horizontal reacting force floor and with its anchor connection,
The top of the testpieces be equipped between two parties with the integrally formed horizontal addload beam of testpieces, the bottom of the testpieces is placed in the middle
Equipped with the integrally formed horizontal base seat board of testpieces, be connected with application between the horizontal addload beam and horizontal boom reaction beam
To the vertical loading structure of horizontal loading beam vertical force, it is connected between the horizontal addload beam and counter force wall and is applied to loading beam
The horizontal addload structure of horizontal force,
The horizontal base seat board is fixedly connected with horizontal reacting force floor.
The vertical loading structure include downside vertical hydraulic jack and upside sliding tank,
The vertical hydraulic jack is provided with one group, is evenly distributed with along the length direction of horizontal addload beam and is fixedly connected on horizontal add
The uper side surface of carrier beam, the sliding tank are fixedly connected on the upside of vertical hydraulic jack, the horizontal boom reaction beam
Downside surface be equipped with for sliding tank walking roll sliding slot track.
The vertical hydraulic jack includes pedestal and flexible thick stick, and the bottom of the pedestal, which is fixedly connected under jack, to be connected
Fishplate bar, the jack lower connecting plate are fixedly connected by connecting bolt under jack with horizontal addload beam, the flexible thick stick
Uper side surface is fixedly connected with jack upper junction plate,
The sliding tank includes the movable pulley on the upside of tank shell and protrusion shell, and the bottom plate of the tank shell passes through very heavy
Bolt is connected on top to be fixedly connected with jack upper junction plate.
The horizontal addload structure include cuff horizontal addload beam two sides cuff to plate, cuff bar and horizontal actuation
Device,
The cuff is greater than the cross sectional dimensions of horizontal addload beam to the size of plate, and cuff sets up on a left side for horizontal addload beam plate separately
The cuff bar anchoring of on the end face of the right two sides and front and rear sides by being located at horizontal addload beam connects drawing,
The left end of the horizontal actuator and the cuff on right side hold out against plate, and the right end and counter force wall of horizontal actuator are fixed to be connected
It connects.
The horizontal boom reaction beam is Flat girder, including top boom, lower boom and web member, and the top boom is under
The right side of chord member is fixedly connected with a beam connecting plate between two parties, and the four corners of the beam connecting plate pass through through counter force wall
Beam connects bolt and counter force wall anchors, and the beam connection bolt is both ends all with the studs of nut, and an end nut is tightened in
The back side of counter force wall, another end nut are tightened in the surface of beam connecting plate.
The right side of the horizontal actuator is fixedly connected with a movement device connecting plate between two parties, the movement device connecting plate
Four corners connect bolt and counter force wall by the movement device through counter force wall and anchor, the movement device connection bolt for both ends all
Studs with nut, an end nut are tightened in the back side of counter force wall, and another end nut is tightened in the table of movement device connecting plate
Face.
The horizontal base seat board is by around testpieces one week and sequentially passing through horizontal base seat board and horizontal reacting force floor
Base plate connects bolt and horizontal reacting force floor and anchors, and the base plate connection bolt is both ends all with the studs of nut,
One end nut is tightened in the bottom surface on horizontal reacting force floor, and another end nut is tightened in the upper surface of horizontal base seat board.
The lower end of the vertical pull rod of prestressing force runs through horizontal reacting force floor and is anchored at the bottom surface on horizontal reacting force floor, institute
The upper end and lower boom for stating the vertical pull rod of prestressing force anchor.
A kind of application method of unidirectional compression shear loading device, using steps are as follows:
Step 1, construct counterforce structure: first integral construction horizontal reacting force floor and counter force wall, then by horizontal boom reaction beam with
Counter force wall is fixedly connected, and is first anchored the bottom end of the vertical pull rod of prestressing force and horizontal reacting force floor, is then vertically drawn prestressing force
The top of bar is fixedly connected with horizontal boom reaction beam, and horizontal boom reaction beam is changed into both ends support shape from cantilever position
State makes counterforce structure form self-balancing stress system；
Step 2, prefabricated testpieces: pouring molding in a mold；
Step 3 installs testpieces: the horizontal base seat board of testpieces and horizontal reacting force floor being anchored, knot then will be vertically loaded
Structure is fixedly connected on the upside of horizontal addload beam, and is slidably connected between the downside of horizontal boom reaction beam, by horizontal addload
The right end of structure is fixedly connected on counter force wall, and the left end of horizontal addload structure holds out against the right end of horizontal addload beam；
Step 4 applies stress to horizontal addload beam by horizontal addload structure, vertical loading structure simulation vertically answering at this time
Power, i.e., vertical loading structure keeps constant with the relative position of horizontal addload beam during this horizontal addload and one starts shipment
It is dynamic.
In the step 3, vertical hydraulic jack is fixedly connected with horizontal addload beam, then will slide the cunning of tank
Driving wheel is directed at sliding slot track, it is ensured that and oil jack keeps constant with horizontal addload beam relative position during withstanding on horizontal addload,
Simulate vertical stress；
Horizontal addload structure is adjusted the power of vertical hydraulic jack or uncomfortable during loading to horizontal addload beam
Section.
Compared with prior art the invention has the characteristics that and the utility model has the advantages that
The advantages of unidirectional loading device combination reaction frame of the invention and prestressed steel bar, proposes a kind of new vertical load dress
It sets, present invention combination counter force wall and counter-force bottom plate, by cantilever beam and prestressed steel bar while application forms self-balancing counterforce device,
It is convenient that vertical force load is carried out to testpieces, it plays a key effect to the vertical gravity of real simulation, to evaluation component anti-seismic performance
The reasonability and feasibility of test play central role.
The present invention makes full use of the flexible arrangement characteristic of prestressed draw-bar, and top cantilever arm reaction frame end is held, thus
It is changed into both ends holding state from cantilever position, increases the rigidity of reaction frame.By top horizontal cantilever reaction beam, by it
One end is fixed on counter force wall, and one end is fixed on counter-force floor using prestressed draw-bar.Test specimen is placed in reaction frame in the following, will
Hydraulic jack is set at the top of test specimen, and the hydraulic jack is moved with loading beam.Very heavy top connection sliding tank,
Sliding tank can move together to simulate top gravity laod with load deflection, can be very good in reaction frame basal sliding
The P- △ effect of tall and big test is simulated, Mechanical loading is succinct, clear, it is ensured that reasonable Protonation constant.
Unidirectional loading device of the invention has easy to process, installs easy to operate, loads reasonable stress to test specimen, economical
Property good, the advantages that cost performance is high, portable appliance can be utilized, be assembled into vertical force loading device.
Detailed description of the invention
The present invention will be further described in detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of unidirectional compression shear loading device of the invention.
Fig. 2 is the structural schematic diagram of horizontal boom reaction beam.
Fig. 3 is the schematic diagram of vertical loading structure.
Appended drawing reference: 1- counter force wall, 2- horizontal reacting force floor, 3- horizontal boom reaction beam, 31- top boom, 32-
Lower boom, 33- web member, the vertical pull rod of 4- prestressing force, 5- slide tank, 51- bottom plate, 52- movable pulley, the vertical oil pressure of 6-
Bolt, 65- jack are connected under the flexible thick stick of jack, 61- pedestal, 62-, 63- jack lower connecting plate, 64- jack
Bolt is connected on upper junction plate, 66- jack, 7- base plate connects bolt, 8- testpieces, 9- horizontal addload beam, 10-
Horizontal base seat board, 11- cuff connect spiral shell to plate, 12- cuff bar, the horizontal actuator of 13-, 14- beam connecting plate, 15- beam
Bolt, 16- movement device connecting plate, 17- movement device connect bolt.
Specific embodiment
Embodiment is joined as shown in figure 1 to 3, a kind of unidirectional compression shear loading device, including testpieces 8 and is enclosed in testpieces four
The counterforce structure in week, the counterforce structure include the horizontal reacting force floor 2 on the downside of testpieces, the counter force wall 1 on the right side of testpieces, examination
The horizontal boom reaction beam 3 on the upside of the vertical pull rod 4 of the prestressing force on the left of part and testpieces is tested, counterforce structure forms self-balancing stress
System.
The horizontal reacting force floor 2 is integrally formed with counter force wall 1, and the two is L-shaped, the right side of the horizontal boom reaction beam 3
End face is fixedly connected with the top of counter force wall 1, the left part of the horizontal boom reaction beam 3 and the top of the vertical pull rod 4 of prestressing force
End is fixedly connected, the bottom end of the vertical pull rod 4 of prestressing force through horizontal reacting force floor 2 and with its anchor connection.
The top of the testpieces 8 is equipped with and the integrally formed horizontal addload beam 9 of testpieces, the bottom of the testpieces between two parties
Portion be equipped between two parties with the integrally formed horizontal base seat board 10 of testpieces, between the horizontal addload beam 9 and horizontal boom reaction beam 3
It is connected with the vertical loading structure for being applied to horizontal addload beam vertical force, is connected between the horizontal addload beam 9 and counter force wall 1
It is applied to the horizontal addload structure of loading beam horizontal force, the horizontal base seat board 10 is fixedly connected with horizontal reacting force floor 2.
The vertical loading structure includes the vertical hydraulic jack 6 of downside and the sliding tank 5 of upside, the vertical oil
Pressure jack 6 is provided with one group, and the upside of horizontal addload beam 9 is evenly distributed with and be fixedly connected on along the length direction of horizontal addload beam 9
Surface, the sliding tank 5 are fixedly connected on the upside of vertical hydraulic jack 6, the downside table of the horizontal boom reaction beam 3
Face is equipped with the sliding slot track rolled for the sliding walking of tank 5.
The vertical hydraulic jack 6 includes pedestal 61 and flexible thick stick 62, and the bottom of the pedestal 61 is fixedly connected with thousand
Jin top lower connecting plate 63, the jack lower connecting plate 63 connect by the way that connection bolt 64 under jack and horizontal addload beam 9 are fixed
It connecing, the uper side surface of the flexible thick stick 62 is fixedly connected with jack upper junction plate 65,
The sliding tank 5 includes tank shell and protrudes the movable pulley 52 on the upside of shell, and the bottom plate 51 of the tank shell is logical
Connection bolt 66 on jack is crossed to be fixedly connected with jack upper junction plate 65.
The horizontal addload structure includes that cuff of the cuff in horizontal addload beam two sides makees plate 11, cuff bar 12 and level
Dynamic device 13, the cuff are greater than the cross sectional dimensions of horizontal addload beam to the size of plate 11, and cuff sets up plate 11 separately and adds in level
The anchoring of cuff bar 12 of on the end face of the left and right sides of the carrier beam 9 and front and rear sides by being located at horizontal addload beam 9 connects drawing,
The left end of the horizontal actuator 13 and the cuff on right side hold out against plate 11, and the right end and counter force wall 1 of horizontal actuator 13 are fixed
Connection.
The horizontal boom reaction beam 3 is Flat girder, including top boom 31, lower boom 32 and web member 33, it is described on
The right side of chord member and lower boom is fixedly connected with a beam connecting plate 14 between two parties, and the four corners of the beam connecting plate 14 pass through
Beam connection bolt 15 and counter force wall 1 through counter force wall anchor, and the beam connection bolt 15 is both ends all double end spiral shells with nut
Column, an end nut are tightened in the back side of counter force wall 1, and another end nut is tightened in the surface of beam connecting plate 14.
The right side of the horizontal actuator 13 is fixedly connected with a movement device connecting plate 16, the movement device connection between two parties
The four corners of plate 16 connect bolt 17 by the movement device through counter force wall and counter force wall 1 anchors, and the movement device connects spiral shell
Bolt 17 is both ends all with the studs of nut, and an end nut is tightened in the back side of counter force wall 1, and another end nut is tightened in movement
The surface of device connecting plate 16.
The horizontal base seat board 10 passes through around testpieces one week and with sequentially passing through horizontal base seat board 10 and horizontal reacting force
The base plate connection bolt 7 of plate 2 and horizontal reacting force floor 10 anchor, and the base plate connection bolt 7 is both ends all with nut
Studs, an end nut are tightened in the bottom surface on horizontal reacting force floor 2, and another end nut is tightened in the upper table of horizontal base seat board 10
Face.
The lower end of the vertical pull rod 4 of prestressing force runs through horizontal reacting force floor 2 and is anchored at the bottom on horizontal reacting force floor 2
Face, the upper end of the vertical pull rod 4 of prestressing force and lower boom 32 anchor.
The application method of this unidirectional compression shear loading device, using steps are as follows:
Step 1, counterforce structure of constructing: first integral construction horizontal reacting force floor 2 and counter force wall 1, then by horizontal boom reaction beam
3 one end is fixedly connected with counter force wall 2, is then anchored the bottom end of the vertical pull rod 4 of prestressing force with horizontal reacting force floor 2, then
The top of the vertical pull rod 4 of prestressing force is fixedly connected with the other end of horizontal boom reaction beam 3, by horizontal boom reaction beam 3 from
Cantilever position changes into both ends holding state, and counterforce structure is made to form self-balancing stress system；
Step 2, prefabricated testpieces: the pouring molding in a mold of testpieces 8；
Step 3 installs testpieces: the horizontal base seat board 10 of testpieces being anchored with horizontal reacting force floor 2, then will vertically be added
It carries structure and is fixedly connected on the upside of horizontal addload beam 9, and be slidably connected with the downside of horizontal boom reaction beam 3, level is added
The right end for carrying structure is fixedly connected on counter force wall 1, and the left end of horizontal addload structure holds out against the right end of horizontal addload beam 3；
Step 4 applies stress to horizontal addload beam 9 by horizontal addload structure, vertical loading structure simulation vertically answering at this time
Power, i.e., vertical loading structure keeps constant with the relative position of horizontal addload beam 9 during this horizontal addload and one starts shipment
It is dynamic.
In the step 3, vertical hydraulic jack 6 is fixedly connected with horizontal addload beam 9, then will slide tank 5
Movable pulley 52 is directed at sliding slot track, it is ensured that hydraulic jack 6 is kept and 9 relative position of horizontal addload beam during horizontal addload
It is constant, simulate vertical stress；Horizontal addload structure is during loading horizontal addload beam 9, to vertical hydraulic jack 6
Power is adjusted or does not adjust.
Claims (10)
1. a kind of unidirectional compression shear loading device, it is characterised in that: including testpieces (8) and be enclosed in the counter-force knot of testpieces surrounding
Structure, the counterforce structure include the horizontal reacting force floor (2) on the downside of testpieces, the counter force wall (1) on the right side of testpieces, a testpieces left side
Horizontal boom reaction beam (3) on the upside of the vertical pull rod of the prestressing force of side (4) and testpieces, counterforce structure form self-balancing beaer
System,
The horizontal reacting force floor (2) and counter force wall (1) are integrally formed, and the two is L-shaped, the horizontal boom reaction beam (3)
It is fixedly connected at the top of right side and counter force wall (1), the left part of the horizontal boom reaction beam (3) and the vertical pull rod of prestressing force
(4) top end part is fixedly connected, the bottom end of the vertical pull rod of prestressing force (4) through horizontal reacting force floor (2) and with its company of anchoring
It connects,
The top of the testpieces (8) is equipped with and the integrally formed horizontal addload beam (9) of testpieces, the bottom of the testpieces between two parties
Portion is equipped with and the integrally formed horizontal base seat board (10) of testpieces, the horizontal addload beam (9) and horizontal boom reaction beam between two parties
(3) the vertical loading structure for being applied to horizontal addload beam vertical force, the horizontal addload beam (9) and counter force wall are connected between
(1) the horizontal addload structure for being applied to loading beam horizontal force is connected between, the horizontal base seat board (10) is with horizontal reacting force
Plate (2) is fixedly connected.
2. unidirectional compression shear loading device according to claim 1, it is characterised in that: the vertical loading structure includes downside
Vertical hydraulic jack (6) and upside sliding tank (5),
The vertical hydraulic jack (6) is provided with one group, is evenly distributed with and is fixedly connected on along the length direction of horizontal addload beam (9)
The uper side surface of horizontal addload beam (9), sliding tank (5) is fixedly connected on the upside of vertical hydraulic jack (6), described
The downside surface of horizontal boom reaction beam (3) is equipped with the sliding slot track rolled for sliding tank (5) walking.
3. unidirectional compression shear loading device according to claim 2, it is characterised in that: vertical hydraulic jack (6) packet
Pedestal (61) and flexible thick stick (62) are included, the bottom of the pedestal (61) is fixedly connected with jack lower connecting plate (63), and described thousand
Jin top lower connecting plate (63) is fixedly connected by connection bolt (64) under jack with horizontal addload beam (9), the flexible thick stick
(62) uper side surface is fixedly connected with jack upper junction plate (65),
Sliding tank (5) includes the movable pulley (52) on the upside of tank shell and protrusion shell, the bottom plate of the tank shell
(51) it is fixedly connected by connection bolt (66) on jack with jack upper junction plate (65).
4. unidirectional compression shear loading device according to claim 3, it is characterised in that: the horizontal addload structure includes cuff
Horizontal addload beam two sides cuff to plate (11), cuff bar (12) and horizontal actuator (13),
The cuff is greater than the cross sectional dimensions of horizontal addload beam to the size of plate (11), and cuff sets up plate (11) separately and adds in level
Cuff bar (12) anchoring pair of on the end face of the left and right sides of carrier beam (9) and the front and rear sides by being located at horizontal addload beam (9)
Connection is drawn,
The left end of the horizontal actuator (13) holds out against plate (11) with the cuff on the right side of horizontal addload beam, horizontal actuator (13)
Right end be fixedly connected with counter force wall (1).
5. according to right want 4 described in unidirectional compression shear loading device, it is characterised in that: the horizontal boom reaction beam (3) is flat
The right side of face girder truss, including top boom (31), lower boom (32) and web member (33), the top boom and lower boom is placed in the middle
It is fixedly connected with a beam connecting plate (14), the four corners of the beam connecting plate (14) connect bolt by the beam through counter force wall
(15) it is anchored with counter force wall (1), beam connection bolt (15) is both ends all with the studs of nut, and an end nut is tightened in
The back side of counter force wall (1), another end nut are tightened in the surface of beam connecting plate (14).
6. according to right want 4 described in unidirectional compression shear loading device, it is characterised in that: the right side of the horizontal actuator (13)
It is fixedly connected with a movement device connecting plate (16) between two parties, the four corners of movement device connecting plate (16) are by running through counter force wall
Movement device connection bolt (17) and counter force wall (1) anchor, movement device connection bolt (17) is that both ends are all double with nut
Header stud, an end nut are tightened in the back side of counter force wall (1), and another end nut is tightened in the surface of movement device connecting plate (16).
7. according to right want 4 described in unidirectional compression shear loading device, it is characterised in that: the horizontal base seat board (10) is by surrounding
Testpieces one week simultaneously sequentially passes through base plate connection bolt (7) of horizontal base seat board (10) and horizontal reacting force floor (2) and horizontal
Counter-force floor (10) anchoring, base plate connection bolt (7) are both ends all with the studs of nut, and an end nut is tightened in
The bottom surface on horizontal reacting force floor (2), another end nut are tightened in the upper surface of horizontal base seat board (10).
8. according to right want 5 described in unidirectional compression shear loading device, it is characterised in that: under the vertical pull rod of prestressing force (4)
End is through horizontal reacting force floor (2) and is anchored at the bottom surfaces of horizontal reacting force floor (2), the vertical pull rod of prestressing force (4) it is upper
End is anchored with lower boom (32).
9. it is a kind of according to right want 3-8 any one described in unidirectional compression shear loading device application method, which is characterized in that make
With steps are as follows:
Step 1, counterforce structure of constructing: first integral construction horizontal reacting force floor (2) and counter force wall (1), it is then that horizontal boom is anti-
One end of power beam (3) is fixedly connected with counter force wall (2), then by the bottom end of the vertical pull rod of prestressing force (4) and horizontal reacting force floor
(2) it anchors, is then fixedly connected on the top of the vertical pull rod of prestressing force (4) with the other end of horizontal boom reaction beam (3), by water
Flat cantilever reaction beam (3) changes into both ends holding state from cantilever position, and counterforce structure is made to form self-balancing stress system；
Step 2, prefabricated testpieces: testpieces (8) pouring molding in a mold；
Step 3 installs testpieces: the horizontal base seat board (10) of testpieces and horizontal reacting force floor (2) being anchored, then will be erected
Be fixedly connected on the upside of horizontal addload beam (9) to loading structure, and be slidably connected on the downside of horizontal boom reaction beam (3),
The right end of horizontal addload structure is fixedly connected on counter force wall (1), the left end of horizontal addload structure holds out against horizontal addload beam (3)
Right end；
Step 4 applies stress to horizontal addload beam (9) by horizontal addload structure, vertical loading structure simulation at this time vertical
Stress, i.e., vertical loading structure keeps constant with the relative position of horizontal addload beam (9) and one during this horizontal addload
Play movement.
10. according to right want 9 described in unidirectional compression shear loading device application method, it is characterised in that: in the step 3, will
Vertical hydraulic jack (6) is fixedly connected with horizontal addload beam (9), and the movable pulley (52) that then will slide tank (5), which is aligned, to be slided
Groove track, it is ensured that hydraulic jack (6) keeps constant with horizontal addload beam (9) relative position during horizontal addload, simulation
Vertical stress；Horizontal addload structure during being loaded to horizontal addload beam (9), to the power of vertical hydraulic jack (6) into
Row is adjusted or is not adjusted.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426284A (en) * | 2019-09-02 | 2019-11-08 | 西南交通大学 | A kind of large-tonnage cantilevered self-balancing plate test loading system and its implementation method |
| CN110654568A (en) * | 2019-09-29 | 2020-01-07 | 中国直升机设计研究所 | Hub couple loading device |
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| CN110426284B (en) * | 2019-09-02 | 2024-04-12 | 西南交通大学 | Large-tonnage cantilever type self-balancing test loading system and implementation method thereof |
| CN110654568A (en) * | 2019-09-29 | 2020-01-07 | 中国直升机设计研究所 | Hub couple loading device |
| CN110654568B (en) * | 2019-09-29 | 2022-09-06 | 中国直升机设计研究所 | Hub couple loading device |
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