CN109357852A - A kind of static(al) rack and Quintic system shock test device - Google Patents
A kind of static(al) rack and Quintic system shock test device Download PDFInfo
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- CN109357852A CN109357852A CN201811231483.0A CN201811231483A CN109357852A CN 109357852 A CN109357852 A CN 109357852A CN 201811231483 A CN201811231483 A CN 201811231483A CN 109357852 A CN109357852 A CN 109357852A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of static(al) rack and Quintic system shock test devices, are related to shock test technical field.The static(al) rack is used to test specimen being fixedly installed on the test area with counter force wall.Static(al) rack includes pedestal, test specimen fixation kit and pedestal fixation kit.Pedestal includes the horizontal fixed part of pedestal and test specimen fixed part, and the horizontal fixed position of pedestal is in the end of pedestal.Pedestal fixation kit includes the first fixation kit, and the first fixation kit and the horizontal fixed part of pedestal cooperate, can be fixedly connected with pedestal with counter force wall, test specimen can be fixedly installed on test specimen fixed part by test specimen fixation kit.The static(al) gantry designs rationally, fixation, smooth location can be provided for test specimen, and guarantee provides the demand of position of fixity for test specimen, which is also used as extendable functions demand rack, practical.
Description
Technical field
The present invention relates to shock test technical fields, in particular to a kind of static(al) rack and Quintic system shock test
Device.
Background technique
For shock test regulation to standard test conditions as defined in Quintic system shock test, basic demand includes: rolling guide,
Test jack, counter force wall, static pedestal and reciprocal actuator.
However, when existing laboratory is unsatisfactory for corresponding testing equipment, such as lack test jack and/or rolling
When guide rail, and in order to study end angled curved, the anti-seismic performance cutting, press test specimen, then, how showing using laboratory
It has ready conditions, designs new rack, meet shock test condition, and then carry out shock test.
Summary of the invention
The purpose of the present invention is to provide a kind of static(al) racks, and smooth location can be provided for test specimen, and guarantee to be test specimen
The demand of position of fixity is provided, carries out Quintic system shock test using existing experimental condition.
The embodiment of the present invention is achieved in that
Based on above-mentioned purpose, the embodiment provides a kind of static(al) racks, for test specimen to be fixedly installed on tool
There is the test area of counter force wall, the static(al) rack includes pedestal, test specimen fixation kit and pedestal fixation kit, the pedestal
Including the horizontal fixed part of pedestal and test specimen fixed part, the horizontal fixed position of pedestal is in the end of the pedestal；
The pedestal fixation kit includes the first fixation kit, first fixation kit and the horizontal fixed part of the pedestal
The pedestal, can be fixedly connected by cooperation with the counter force wall, and the test specimen fixation kit can set test specimen fixation
It is placed in the test specimen fixed part.
In addition, the static(al) rack that embodiment according to the present invention provides, can also have the following additional technical features:
In alternative embodiment of the invention, the horizontal fixed part of pedestal includes load-bearing pressure section and interconnecting piece, described
Interconnecting piece offers tie rod hole, and the tie rod hole is corresponding with the adjustment hole that the counter force wall opens up；
First fixation kit includes top tight pieces and idler arm, and one end of the top tight pieces abuts the load-bearing and compresses
Portion, the other end abut the counter force wall, and the idler arm can successively be arranged in the tie rod hole and the adjustment hole, will be described
Pedestal is fixedly connected with the counter force wall.
In alternative embodiment of the invention, the test specimen fixed part offers the first fixation hole and the second fixation hole；
The test specimen fixation kit includes press beam and the Horizontal limiting component with positioning regulating part, the Horizontal limiting group
Number of packages amount is at least two, and is respectively left side limit assembly and right side limit assembly, the left side limit assembly fixed setting
In first fixation hole, the right side limit assembly is fixedly installed on second fixation hole, each positioning regulating part
Movement can be adjusted for squeezing the test specimen；
The press beam is located above the test specimen fixed part, and is formed with the test specimen fixed part for clamping the test specimen
Fixed space, the press beam is fixedly connected by steady brace with the test area.
In alternative embodiment of the invention, the Horizontal limiting component further includes fixing seat, and the fixing seat includes solid
Determine interconnecting piece and positioning adjustment portion；
The portion of being fixedly connected offers connection corresponding with first fixation hole and/or second fixation hole
The fixing seat is fixedly connected by hole by connector with the test specimen fixed part；
The positioning adjustment portion offers adjustment hole, and the positioning regulating part includes adjusting mandril and support block, the adjusting
Mandril is arranged in the adjustment hole, and the support block is set to described one end for adjusting mandril and can abut with the test specimen.
In alternative embodiment of the invention, the pedestal further includes the vertical fixed part of pedestal, and the pedestal is vertically fixed
Portion offers multiple positioning strip-shaped holes, and the positioning strip-shaped hole is corresponding with the anchor hole of the test area；
The pedestal fixation kit further includes the second fixation kit, and second fixation kit is vertically fixed with the pedestal
The pedestal, can be fixedly connected by portion's cooperation with the test area.
The present invention also provides a kind of Quintic system shock test devices, including counter force wall and static(al) rack；
The counter force wall is fixedly installed on test area, and the pedestal is fixed by the first fixation kit and the counter force wall
Connection.
In alternative embodiment of the invention, the Quintic system shock test device further includes counter-force loading frame, the first ball
Cut with scissors actuator and the second flexural pivot actuator；
The counter-force loading frame is fixedly installed on the test area, and the static(al) rack is located at the counter-force loading frame
Lower section, the first end of the first flexural pivot actuator is set to the counter-force loading frame, the of the first flexural pivot actuator
Two ends and the column cap roof of the test specimen are fixed, and the first end of the second flexural pivot actuator is fixedly installed on the counter force wall,
The second end of the second flexural pivot actuator is fixed with the column cap side wall of the test specimen.
In alternative embodiment of the invention, the counter-force loading frame includes loading beam, and the first flexural pivot actuator can
The lower section for being set to the loading beam adjusted；
The counter force wall offers multiple adjustment holes, and the second flexural pivot actuator is solid by fitting and the counter force wall
Fixed connection.
In alternative embodiment of the invention, the Quintic system shock test device further includes conversion head, the conversion head
Including connection component；
The connection component includes flexural pivot fixing seat, test specimen column cap fixing piece and locking member, the flexural pivot fixing seat and
The test specimen column cap fixing piece offers multiple fixation holes, and the flexural pivot fixing seat and the test specimen column cap fixing piece are set relatively
It sets, and forms the clamping space for fixing the column cap of the test specimen, the locking member sequentially passes through the flexural pivot fixing seat
The flexural pivot fixing seat is fixedly connected by the fixation hole of fixation hole and the test specimen column cap fixing piece with the column cap of the test specimen.
In alternative embodiment of the invention, the quantity of the connection component is two, and respectively the first connection component
With the second connection component, the first flexural pivot actuator passes through fixed at the top of the column cap of first connection component and the test specimen
Connection, the second flexural pivot actuator are fixedly connected by second connection component with the column cap side wall of the test specimen.
The beneficial effect of the embodiment of the present invention is: design is reasonable, structure is simple, and smooth location can be provided for test specimen, and
Guarantee to provide the demand of position of fixity for test specimen, it is practical, it is small to can satisfy cantilever wall, hyperbolicity column and top replacement sliding
Vertical load is carried out after vehicle jack.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the static(al) rack that the embodiment of the present invention 1 provides；
Fig. 2 is the structural schematic diagram of existing Quintic system shock test device；
Fig. 3 is the structural schematic diagram of pedestal in Fig. 1；
Fig. 4 is the partial schematic diagram in Fig. 1 at A；
Fig. 5 is the structural schematic diagram for the Quintic system shock test device that the embodiment of the present invention 2 provides；
Fig. 6 is the structural schematic diagram of the counter-force loading frame in Fig. 5；
Fig. 7 is the structural schematic diagram of test specimen in Fig. 5；
The first flexural pivot actuator is set to the structural schematic diagram of loading beam in Fig. 8 Fig. 5；
Fig. 9 is the structural schematic diagram of conversion head in Fig. 5；
Figure 10 is Quintic system shock test calculation diagram.
Icon: 100- static(al) rack；1- static pedestal；2- reaction frame；3- counter force wall；4- rolling guide；5- jack；6-
Reciprocal actuator；10- pedestal；102- test specimen fixed part；103- pedestal fixed part；The horizontal fixed part of 104- pedestal；105- load-bearing
Pressure section；106- tie rod hole；107- positions strip-shaped hole；12- test specimen fixation kit；121- press beam；125- Horizontal limiting component；
126- fixing seat；127- is fixedly connected with portion；128- positions adjustment portion；129- positions regulating part；13- pedestal fixation kit；134-
Top tight pieces；136- idler arm；20- Quintic system shock test device；21- counter-force loading frame；215- loading beam；216- pin shaft hole；
22- the first flexural pivot actuator；23- the second flexural pivot actuator；The floor 24-；25- test specimen；251- suspension column；253- shaft；255- column
Head；26- conversion head；261- flexural pivot fixing seat；262- test specimen column cap fixing piece；263- locking member；The first connection component of 265-；
266- clamping limb；The second connection component of 268-.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Embodiment 1
Fig. 1 is the structural schematic diagram of static(al) rack 100 provided in this embodiment, and Fig. 2 is existing Quintic system shock test dress
The structural schematic diagram set please refers to shown in Fig. 1 and Fig. 2.
Existing Quintic system shock test device, including it is static pedestal 1, reaction frame 2, counter force wall 3, rolling guide 4, very heavy
Top 5 and reciprocal actuator 6.
However, since relevant device is not complete in laboratory, such as often lacking jack 5 and rolling in specific test
Dynamic guide rail 4, then be unable to complete Quintic system shock test according to existing experimental condition.
In order to study the anti-seismic performance of curved scissors pressure component (end is angled), then need enterprising on existing experimental condition basis
Row design improves.Then need static(al) rack satisfaction that can provide the boundary condition of build-in for test specimen.
Since usually when laboratory designs, static(al) rack is the whole design as structure laboratory, is passed through
It rationally anchors and can guarantee that Relative sliding does not occur for static(al) rack, it is how sharp when static(al) rack does not design as a whole
New static(al) rack is designed with laboratory condition, it is made to meet experimental condition, i.e., has designed for test specimen to be fixedly installed on
The test area of counter force wall.
The specific structure to all parts of the static(al) rack 100 and mutual corresponding relationship carry out specifically below
It is bright.
It please refers to shown in Fig. 1, static(al) rack 100 includes pedestal 10, test specimen fixation kit 12 and pedestal fixation kit 13.
Wherein, pedestal 10 is used to be horizontally placed on the test area of laboratory, by pedestal fixation kit 13 that it is anti-with laboratory
Power wall 3 is fixedly connected with test floor 24, and test specimen 25 to be tested is fixedly installed on pedestal 10 by test specimen fixation kit 12,
The other equipment of compatibility test room carry out Quintic system shock test.
Fig. 3 is the structural schematic diagram of pedestal 10, shown referring to figure 3..
Specifically, the pedestal 10 is rectangle tabular structure made of the horizontally extending welding as plate metal,
The pedestal 10 includes test specimen fixed part 102 and pedestal fixed part 103, and test specimen fixed part 102 is located at the upper surface of pedestal 10, is used for
Fixed test specimen 25.Pedestal fixed part 103 includes the horizontal fixed part 104 of pedestal and the vertical fixed part of pedestal, wherein pedestal level is solid
Determine the end that portion 104 is located at pedestal 10, the vertical fixed part of pedestal is distributed along the extending direction of pedestal 10, utilizes laboratory test area
The existing anchor hole in domain is fixed.
Optionally, the horizontal fixed part 104 of pedestal includes load-bearing pressure section 105 and interconnecting piece, and interconnecting piece is provided with reinforcing rib,
For increasing intensity, interconnecting piece offers the tie rod hole 106 of perforation, and pressure section is located at the lower section of interconnecting piece, wherein tie rod hole
106 size and location is corresponding with the adjustment hole that counter force wall 3 opens up, and experimenter is made to sequentially pass through drawing using idler arm 136
Rod aperture 106 and adjustment hole carry out initial alignment to pedestal 10 and counter force wall 3.
Optionally, the vertical fixed part of pedestal offers multiple positioning strip-shaped holes 107, the positioning along the length direction of pedestal 10
Strip-shaped hole 107 runs through pedestal 10 and opens up, and position strip-shaped hole 107 open up position and open up size will be with existing laboratory
The anchor hole of test area is corresponding, and pedestal 10 can be fixed on the floor 24 of test area by fastener.
Optionally, test specimen fixed part 102 offers multiple fixation holes, i.e., for by test specimen 25 to be tested from horizontal direction into
Row limit is fixed.After test specimen 25 is placed on the test specimen fixed part 102 of pedestal 10, test specimen 25 draws the fixation hole on pedestal 10
It is divided into the first fixation hole and the second fixation hole.
In the present embodiment, test specimen fixed part 102 is the upper surface of pedestal 10, and 10 upper surface of pedestal offers fixation hole,
The horizontal fixed part 104 of pedestal is located at the end of pedestal 10, and the vertical fixed part of pedestal is arranged along the extending direction of pedestal 10, and along platform
The short transverse of seat 10 opens up perforative positioning strip-shaped hole 107.
Please continue to refer to shown in Fig. 1.Pedestal fixation kit 13 includes the first fixation kit and the second fixation kit, and first is solid
Determine component and the horizontal fixed part 104 of pedestal cooperates, pedestal 10 can be fixedly connected with laboratory existing counter force wall 3, second
Fixation kit and the vertical fixed part of pedestal cooperate, and pedestal 10 and the anchor hole cooperation of test area can achieve a fixed connection.
Optionally, the first fixation kit includes top tight pieces 134 and idler arm 136, and idler arm 136 can successively be arranged in drawing
The adjustment hole of rod aperture 106 and counter force wall 3 is initially fixed pedestal 10 and counter force wall 3, and one end of top tight pieces 134 is connected to
Load-bearing pressure section 105, the other end be connected to counter force wall 3, holds out against pedestal 10 by adjusting top tight pieces 134, make idler arm 136 by
Pulling force limits the horizontal displacement of pedestal 10.
In the present embodiment, top tight pieces 134 are mechanic jacks, first that pedestal 10 is corresponding with counter force wall 3 when assembly, are made
The tie rod hole 106 that the horizontal fixed part 104 of pedestal opens up is corresponding with the adjustment hole of counter force wall 3, is worn wherein using idler arm 136
It is adjusted to suitable position and tightens, then top tight pieces 134 are horizontally placed between counter force wall 3 and the horizontal fixed part 104 of pedestal,
The height for adjusting jack 5 realizes the purpose of horizontal fixation for holding out against pedestal 10 and counter force wall 3, when original state, machine
Tool jack should be at holding out against state.
The design of idler arm 136 is to guarantee pedestal 10 when pushing away of test specimen 25 using the existing adjustment hole on counter force wall 3
Horizontal displacement does not occur, idler arm 136 selects the screw rod of high intensity, high-modulus, major diameter, and cooperative mechanical jack guarantees examination
Part 25 is not subjected to displacement drawing.
Optionally, the second fixation kit is more locking pull rods, and locking pull rod successively penetrates positioning strip-shaped hole 107 and earth anchor
Pedestal 10 and the ground of test area are fixed in hole.
Fig. 4 is the partial schematic diagram in static(al) rack 100 at A, is please referred to shown in Fig. 1 and Fig. 4.
Test specimen fixation kit 12 includes press beam 121 and Horizontal limiting component 125, and test specimen fixation kit 12 can be by test specimen 25
It is fixedly installed on the test specimen fixed part 102 of pedestal 10.The cooperation of the floor 24 of press beam 121 and test area for by test specimen 25 from perpendicular
To being fixed, Horizontal limiting component 125 is adjustable to be set on pedestal 10, for test specimen 25 to be carried out two from horizontal direction
End limit.
Optionally, Horizontal limiting component 125 includes fixing seat 126 and positioning regulating part 129, and fixing seat 126 includes fixing
Interconnecting piece 127 and positioning adjustment portion 128, the cooperation of test specimen fixed part 102 for being fixedly connected with portion 127 and pedestal 10 are fixed, and positioning is adjusted
Section portion 128 is used for and test specimen 25 cooperates, and is fixedly connected with portion 127 and is offered connecting hole, the connecting hole and fixation hole are corresponding, pass through
Connector sequentially passes through, and will be fixedly connected with portion 127 and is fixedly connected with test specimen fixed part 102.
Positioning adjustment portion 128 offers adjustment hole, and positioning regulating part 129 includes adjusting mandril and support block, adjusts mandril and is
Rod-like structure, and it is provided with screw thread, it adjusts mandril and is arranged in adjustment hole, support block is fixedly installed on the one end for adjusting mandril, and supports
Block is used for and the side of test specimen 25 abuts, and the other end for adjusting mandril will adjust mandril locking by bolt, by adjusting bolt
Power is compressed between fixing seat 126 and test specimen 25 to adjust.
Wherein, the quantity of Horizontal limiting component 125 is at least two, at least one is set to the left side of test specimen 25, at least
One is set to the right side of test specimen 25, and the Horizontal limiting component 125 for being set to 25 left side of test specimen is left side limit assembly, is set to
The Horizontal limiting component 125 on 25 right side of test specimen is right side limit assembly.
Wherein, left side limit assembly is fixedly installed on the first fixation hole, and it is fixed that right side limit assembly is fixedly installed on second
Hole, each positioning regulating part 129 is connected to the side of test specimen 25, by adjusting, by test specimen 25 from opposite both direction into
Row jam-packed is fixed, and Horizontal limiting component 125 limits the displacement of 25 horizontal direction of test specimen, prevents horizontal sliding.
Horizontal limiting component 125 pedestal 10 position-adjustable, with meet different size test specimen 25 load the needs of, platform
Seat 10 is designed as expansible form, meets extension demand.
Optionally, press beam 121 is located at the top of test specimen fixed part 102, and press beam 121 is located at left side limit assembly and right side
Between limit assembly, the test specimen fixed part 102 of press beam 121 and pedestal 10 forms the fixed space for clamping test specimen 25, press beam
121 both ends offer through hole, are fixedly connected with press beam 121 with the floor 24 of test area by steady brace, press beam 121
25 position of fixity of test specimen is constrained, prevents test specimen 25 from rotating.
In the present embodiment, the quantity of press beam 121 is two, presses on the both ends of test specimen 25 respectively, can be secured, stable
Test specimen 25 is fixed on pedestal 10, also pedestal 10 is fixedly connected with the floor 24 of counter force wall 3, test area.
Test specimen fixed part 102 limits its horizontal displacement by Horizontal limiting component 125, two press beams 121 and with pier nose
Steady brace, for preventing test specimen 25 from rotating, the pier nose of steady brace is stuck in anchor hole, and steady brace passes through press beam 121, is led to
It crosses and tightens bolt and can apply pretightning force between test specimen 25, pedestal 10 and floor 24.
The static(al) rack 100 that the embodiment of the present invention 1 provides has the beneficial effect that
Reasonable, fixation is designed, smooth location can be provided for test specimen 25, and guarantees to be that test specimen 25 provides position of fixity
Demand, the static(al) rack 100 are also used as extendable functions demand rack, meet cantilever wall, hyperbolicity column and top more
Vertical load is carried out after changing sliding machine jack.
Embodiment 2
The embodiment of the present invention 2 provides a kind of Quintic system shock test device 20, including counter force wall 3, counter-force loading frame 21,
First flexural pivot actuator 22, the second flexural pivot actuator 23 and the static(al) rack 100 such as the offer of embodiment 1.
Fig. 5 is the structural schematic diagram for the Quintic system shock test device 20 that embodiment 2 provides, and Fig. 6 is counter-force loading frame 21
Structural schematic diagram, please refer to shown in Fig. 5 and Fig. 6.
Counter force wall 3 is fixedly installed in existing laboratory, the floor 24 in existing laboratory test region offers multiplely
The pedestal 10 of static(al) rack 100 is fixed by anchor hole and counter force wall 3 for anchor hole, so that pedestal 10 is fixed by first
Component is fixedly connected with counter force wall 3, and pedestal 10 is fixedly connected by the second fixation kit with floor 24.
Counter-force loading frame 21 is fixedly installed in existing laboratory, counter-force loading frame 21 is located at the space of static(al) rack 100
Top, the first flexural pivot actuator 22 are fixedly connected with counter-force loading frame 21, the second flexural pivot actuator 23 and the fixed company of counter force wall 3
It connecing, the first flexural pivot actuator 22 and the second flexural pivot actuator 23 are fixedly connected by conversion head 26 with the column cap 255 of test specimen 25, from
And Quintic system shock test is carried out to test specimen 25.
Optionally, the first end of the first flexural pivot actuator 22 is set to counter-force loading frame 21, the first flexural pivot actuator 22
Second end and 255 roof of column cap of test specimen 25 are fixed, and the first end of the second flexural pivot actuator 23 is fixedly installed on counter force wall 3, the
The second end of two flexural pivot actuator 23 and 255 side wall of column cap of test specimen 25 are fixed.
First flexural pivot actuator 22 can swing with horizontal displacement in horizontal addload, in order to reach ideal conditions, need to meet
The upper end of first flexural pivot actuator 22 is mounted in completely on counter-force loading frame 21, the lower end of the first flexural pivot actuator 22 and test specimen 25
Column cap 255 horizontal displacement it is consistent, and with column cap 255 rotate.
Optionally, the first flexural pivot actuator 22 is 150T actuator, itself length is higher, and (armed lever contraction does not extend out first
Beginning length is about 3.2m), the actual loaded horizontal displacement of column (meets most of test specimen 25 at least 6% generally within 200mm
Load demand), therefore in load, it is negligible that the first flexural pivot actuator 22 swings the influence generated to vertical axle power；But test specimen
25 horizontal force bearing capacity need to be charged to the influence of the first flexural pivot actuator 22 swing by basic mechanical computation model.
Fig. 7 is the structural schematic diagram of test specimen 25, and Fig. 8 shows for the structure that the first flexural pivot actuator 22 is set to loading beam 215
It is intended to, please refers to shown in Fig. 7 and Fig. 8.
Test specimen 25 successively includes suspension column 251, shaft 253 and column cap 255 from the bottom to top, and suspension column 251 is consolidating for test specimen 25
Determine part, be set on the pedestal 10 of static(al) rack 100, column cap 255 is fixedly connected with actuator.
Optionally, counter-force loading frame 21 includes loading beam 215, and loading beam 215 can vertically be adjusted relative to frame body and be transported
It is dynamic, the first flexural pivot actuator 22 adjustable lower section for being set to loading beam 215 in the horizontal direction.First flexural pivot actuator 22 is logical
It crosses fixing piece to be set on loading beam 215, wherein pin shaft hole 216 is also provided on fixing piece, when fixing assembling, using pin shaft
It is arranged at pin shaft hole 216, achievees the purpose that resistant slide.
Second flexural pivot actuator 23 is fixedly connected by fitting with counter force wall 3, since counter force wall 3 offers multiple adjustings
Hole adjusts the corresponding position of the second flexural pivot actuator 23 and counter force wall 3 according to 25 structure snd size of test specimen to be tested.
In order to connect the column cap 255 of actuator and test specimen 25, conversion head 26 is devised, for guaranteeing the first flexural pivot
The horizontal displacement of actuator 22 and the second flexural pivot actuator 23, rotation displacement are consistent with the displacement of test specimen 25.That is the first flexural pivot is made
Dynamic device 22 and the second flexural pivot actuator 23 are to be fixedly connected by conversion head 26 with the column cap 255 of test specimen 25, pass through the first ball
It cuts with scissors actuator 22 and the second flexural pivot actuator 23 realizes that the column cap 255 of test specimen 25 (cantilever mast) is swung.
Fig. 9 is the structural schematic diagram of conversion head 26, is please referred to shown in Fig. 9.
Conversion head 26 includes connection component, and the quantity of connection component is two, and two connection components cooperate, and are formed solid
The clamping space of fixed column head 255, conversion head 26 constrain the column cap 255 of test specimen 25, to apply reciprocal horizontal displacement and vertical position
It moves.
Each connection component includes flexural pivot fixing seat 261, test specimen column cap fixing piece 262 and locking member 263, wherein
Flexural pivot fixing seat 261 and test specimen column cap fixing piece 262 are oppositely arranged and offer multiple fixation holes, 261 He of flexural pivot fixing seat
Test specimen column cap fixing piece 262 forms the clamping space for fixing 25 column cap 255 of test specimen, and it is solid that locking member 263 sequentially passes through flexural pivot
The fixation hole of reservation 261 and the fixation hole of test specimen column cap fixing piece 262, flexural pivot fixing seat 261 and the column cap 255 of test specimen 25 are consolidated
Fixed connection.
In the present embodiment, connection component is respectively the first connection component 265 and the second connection component 268, the first connection
Component 265 is vertically arranged, and the first flexural pivot actuator 22 at the top of the first connection component 265 and the column cap 255 of test specimen 25 by fixing
Connection, the second connection component 268 is horizontally disposed, the column that the second flexural pivot actuator 23 passes through the second connection component 268 and test specimen 25
First 255 side wall is fixedly connected.
Optionally, it is relatively set with clamping limb 266 at the top of the flexural pivot fixing seat 261 in the first connection component 265, it is opposite to set
266 purpose of clamping limb set is the horizontal sliding for preventing the first flexural pivot actuator 22 and test specimen column cap fixing piece 262.
Optionally, the first flexural pivot actuator 22 is set between the clamping limb 266, and clamping limb 266 and the first flexural pivot are made
There is gap, in the present embodiment, which is 7mm or so, and the ear of the first flexural pivot actuator 22 between the otic placode of dynamic device 22
Plate two sides are close sturdy by insertion steel bar guarantee, guarantee the first flexural pivot actuator 22 with 261 stable connection of flexural pivot fixing seat not
Sliding.
For two spaced stripe boards, the test specimen column cap fixing piece 262 in the second connection component 268 is an entirety
Fixed plate.And the locking member 263 in the first locking member 263 and the second connection component 268 in connection component 265 be staggered it is solid
It is fixed.
Optionally, this body length of the first flexural pivot actuator 22 is obviously greater than the required target level displacement of load,
Therefore it can guarantee in entire loading procedure, axle power remains unchanged substantially.25 total level bearing capacity of test specimen can pass through the second flexural pivot
Horizontal force caused by the power of actuator 23 is influenced plus consideration 22 horizontal hunting of the first flexural pivot actuator calculates.
The Quintic system shock test device 20 that the present embodiment 2 provides uses the first flexural pivot actuator 22 and the second flexural pivot is made
Dynamic device 23 guarantees in actual loaded, the column cap 255 of test specimen 25 can rotate, and the first flexural pivot actuator 22 is watched using hydraulic
Actuator is taken, its displacement can be automatically adjusted, it is made to can guarantee that power is constant in vertical load.
The Quintic system shock test device 20 that the present embodiment 2 provides can realize the demand of Quintic system load, by considering power
Simplified model is learned, the total horizontal force bearing capacity of test specimen 25 can be calculated, due to 22 flexural pivot of the first flexural pivot actuator to 25 column of test specimen
There is certain height at first 255 load centers, and vertical levels swing caused additional P-D effect and horizontal force component, can press
According to the equivalent principle of column bottom bending moment, the influence of swing is equivalent to horizontal force, and the level generated with the second flexural pivot actuator 23
The power horizontal force bearing capacity total together as test specimen 25, calculation shows that, the influence very little generated to axle power is swung, therefore negligible
Influence to vertical axle power, calculation diagram are shown in Figure 10.
In loading procedure, the power P for keeping the first flexural pivot actuator 22 to apply is constant, is gradually increased the second flexural pivot actuator 23
To displacement of targets Δ 2 or target force F1, then correction formula this moment is as follows:
Axle power amendment (it is negligible to influence very little):
Horizontal force amendment:
In formula:The horizontal force generated for the influence of vertical MTS horizontal component；
P(Δ1-Δ2)/h0The horizontal force generated for the additional P-DETA effect of vertical MTS；F1For the horizontal force of horizontal MTS.
In the present embodiment, counter force wall 3 uses armored concrete, and it is 400T, moment of flexure that counter force wall 3, which designs bottom shearing,
3000Tm；Static(al) rack 100 when anchor hole, wide 8.6m, long 15m, the vertical load of permission are 6t/m2, anchor hole withdrawal resistance is
50T/ (anchor bolt of M60), anchor slot withdrawal resistance 50T/m, 3 thickness 2.4m of counter force wall；First flexural pivot actuator 22 is 150T, the second ball
Hinge actuator 23 is 50T；Counter-force loading frame 21 is 200T, the maximum free height 6.1m that counter-force loading frame 21 may be implemented, load
The 215 middle part about 4.4m of the distance away from counter force wall 3 of beam；The first flexural pivot actuator 22 effect of 150T is connected to 215 middle part of loading beam
Position does not extend out length about 3.2m initially.
The present embodiment 2 is by realizing 25 Quintic system shock test of cantilever mast test specimen, counter-force loading frame using two actuator
21 provide vertical counter-force, and counter force wall 3 provides horizontal reacting force, and the first flexural pivot actuator 22 applies vertical counter-force, while guaranteeing to try
The column cap 255 of part 25 can be rotated, and meet the needs of cantilever mast column cap 255 is freely rotated, the second flexural pivot actuator 23 applies level
Counter-force guarantees that cantilever column cap 255 rotates demand.
It should be noted that in the absence of conflict, the feature in embodiment in the present invention can be combined with each other.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of static(al) rack, for test specimen to be fixedly installed on the test area with counter force wall, which is characterized in that described quiet
Power rack includes pedestal, test specimen fixation kit and pedestal fixation kit, and the pedestal includes the horizontal fixed part of pedestal and test specimen
Fixed part, the horizontal fixed position of pedestal is in the end of the pedestal；
The pedestal fixation kit includes the first fixation kit, and first fixation kit is matched with the horizontal fixed part of the pedestal
It closes, the pedestal can be fixedly connected with the counter force wall, the test specimen can be fixedly installed for the test specimen fixation kit
In the test specimen fixed part.
2. static(al) rack according to claim 1, which is characterized in that the horizontal fixed part of pedestal includes load-bearing pressure section
And interconnecting piece, the interconnecting piece offer tie rod hole, the tie rod hole is corresponding with the adjustment hole that the counter force wall opens up；
First fixation kit includes top tight pieces and idler arm, and one end of the top tight pieces abuts the load-bearing pressure section, separately
One end abuts the counter force wall, and the idler arm can successively be arranged in the tie rod hole and the adjustment hole, by the pedestal
It is fixedly connected with the counter force wall.
3. static(al) rack according to claim 1, which is characterized in that the test specimen fixed part offer the first fixation hole and
Second fixation hole；
The test specimen fixation kit includes press beam and the Horizontal limiting component with positioning regulating part, the Horizontal limiting package count
Amount is at least two, and is respectively that left side limit assembly and right side limit assembly, the left side limit assembly are fixedly installed on institute
The first fixation hole is stated, the right side limit assembly is fixedly installed on second fixation hole, the equal energy of each positioning regulating part
It is enough to adjust movement for squeezing the test specimen；
The press beam is located above the test specimen fixed part, and is formed with the test specimen fixed part for clamping consolidating for the test specimen
Determine space, the press beam is fixedly connected by steady brace with the test area.
4. static(al) rack according to claim 3, which is characterized in that the Horizontal limiting component further includes fixing seat, institute
Stating fixing seat includes the portion that is fixedly connected and positioning adjustment portion；
The portion of being fixedly connected offers connecting hole corresponding with first fixation hole and/or second fixation hole, leads to
It crosses connector and is fixedly connected with the fixing seat with the test specimen fixed part；
The positioning adjustment portion offers adjustment hole, and the positioning regulating part includes adjusting mandril and support block, the adjusting mandril
It is arranged in the adjustment hole, the support block is set to described one end for adjusting mandril and can abut with the test specimen.
5. static(al) rack according to claim 1, which is characterized in that the pedestal further includes the vertical fixed part of pedestal, institute
It states the vertical fixed part of pedestal and offers multiple positioning strip-shaped holes, the positioning strip-shaped hole is opposite with the anchor hole of the test area
It answers；
The pedestal fixation kit further includes the second fixation kit, and second fixation kit is matched with the vertical fixed part of the pedestal
It closes, the pedestal can be fixedly connected with the test area.
6. a kind of Quintic system shock test device, which is characterized in that including described in counter force wall and claim 1-5 any one
Static(al) rack；
The counter force wall is fixedly installed on test area, and the pedestal connects by the way that the first fixation kit and the counter force wall are fixed
It connects.
7. Quintic system shock test device according to claim 6, which is characterized in that the Quintic system shock test device
It further include counter-force loading frame, the first flexural pivot actuator and the second flexural pivot actuator；
The counter-force loading frame is fixedly installed on the test area, and the static(al) rack is located under the counter-force loading frame
Side, the first end of the first flexural pivot actuator are set to the counter-force loading frame, the second end of the first flexural pivot actuator
It is fixed with the column cap roof of the test specimen, the first end of the second flexural pivot actuator is fixedly installed on the counter force wall, described
The second end of second flexural pivot actuator is fixed with the column cap side wall of the test specimen.
8. Quintic system shock test device according to claim 7, which is characterized in that the counter-force loading frame includes load
Beam, the adjustable lower section for being set to the loading beam of the first flexural pivot actuator；
The counter force wall offers multiple adjustment holes, and the second flexural pivot actuator connects by the way that fitting and the counter force wall are fixed
It connects.
9. Quintic system shock test device according to claim 7, which is characterized in that the Quintic system shock test device
It further include conversion head, the conversion head includes connection component；
The connection component includes flexural pivot fixing seat, test specimen column cap fixing piece and locking member, the flexural pivot fixing seat and described
Test specimen column cap fixing piece offers multiple fixation holes, and the flexural pivot fixing seat and the test specimen column cap fixing piece are oppositely arranged,
And clamping space for fixing the column cap of the test specimen is formed, the locking member sequentially passes through the fixation of the flexural pivot fixing seat
The flexural pivot fixing seat is fixedly connected by the fixation hole in hole and the test specimen column cap fixing piece with the column cap of the test specimen.
10. Quintic system shock test device according to claim 9, which is characterized in that the quantity of the connection component is
Two, and respectively the first connection component and the second connection component, the first flexural pivot actuator pass through the first connection group
It is fixedly connected at the top of part and the column cap of the test specimen, the second flexural pivot actuator passes through second connection component and the examination
The column cap side wall of part is fixedly connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231483.0A CN109357852B (en) | 2018-10-22 | 2018-10-22 | Static force rack and pseudo-static force anti-seismic testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231483.0A CN109357852B (en) | 2018-10-22 | 2018-10-22 | Static force rack and pseudo-static force anti-seismic testing device |
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| CN109357852A true CN109357852A (en) | 2019-02-19 |
| CN109357852B CN109357852B (en) | 2020-03-20 |
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| 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 |
| CN110657931A (en) * | 2019-08-22 | 2020-01-07 | 广西大学 | Loading device for vertical member anti-seismic performance test under partial pulling working condition |
| CN110657932A (en) * | 2019-08-22 | 2020-01-07 | 广西大学 | Loading device for anti-seismic performance test of vertical component with combined pulling and shearing effects |
| CN111103108A (en) * | 2020-01-10 | 2020-05-05 | 济南三越测试仪器有限公司 | Pseudo-static multifunctional test system |
| CN111487325A (en) * | 2020-05-09 | 2020-08-04 | 象山侧风电子技术有限公司 | Porous material sound insulation anti-seismic performance detection equipment |
| CN111595575A (en) * | 2020-06-28 | 2020-08-28 | 武汉理工大学 | Test piece loading test device |
| CN114279667A (en) * | 2022-03-07 | 2022-04-05 | 成都理工大学 | Pseudo-static anti-seismic test device and method for wallboard joint |
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| CN111487325A (en) * | 2020-05-09 | 2020-08-04 | 象山侧风电子技术有限公司 | Porous material sound insulation anti-seismic performance detection equipment |
| CN111595575A (en) * | 2020-06-28 | 2020-08-28 | 武汉理工大学 | Test piece loading test device |
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