CN109211501A - A kind of two-way changeable large-scale stacked in layers formula shear model box - Google Patents
A kind of two-way changeable large-scale stacked in layers formula shear model box Download PDFInfo
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- CN109211501A CN109211501A CN201810786684.0A CN201810786684A CN109211501A CN 109211501 A CN109211501 A CN 109211501A CN 201810786684 A CN201810786684 A CN 201810786684A CN 109211501 A CN109211501 A CN 109211501A
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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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Abstract
The present invention relates to a kind of two-way changeable large-scale stacked in layers formula shear model boxes, including stacked in layers cabinet, the stacked in layers cabinet includes multi-layer H fashioned iron frame (6), one layer of bottom frame (5) and a bottom plate (2), the H profile steel frame (6) and bottom frame (5) are stacked the side wall to form stacked in layers cabinet, the bottom plate (2) is fixed in bottom frame (5), it is provided between adjacent layer H profile steel frame (6) and between H profile steel frame (6) and bottom frame (5) without guide tracked slipping mechanism (4), lateral Displacement steel plate (11) are fixed on the outside of layered one group of opposing sidewalls for stacking cabinet, and this group of opposing sidewalls are perpendicular to the direction of vibration of shake table.Compared with prior art, the present invention has many advantages, such as that planar dimension is big, the model formation seismic response efficient, suitable for simulate extensive or imperial scale of double direction shear direction switching, shortens test period, raising test accuracy.
Description
Technical field
The present invention relates to shock test technical fields, more particularly, to a kind of two-way changeable large-scale stacked in layers formula shearing
Model casing.
Background technique
Need object to be simulated in addition to structure itself in underground structure shock test, in test, it is also necessary to model configuration
The stratum on periphery, that is, need in addition to increase on a vibration table one can transmit effect of vibration to subjects soil container, i.e.,
Model casing.Since filling mould type soil simulates the infinitely native domain of prototype in the model casing using finite size, need to consider following two
A problem: influence and vibrational energy of the vibration behavior of wall box to model are transmitted to " the boundary reflection " generated after side wall,
I.e. so-called " model casing effect ".In order to eliminate model casing effect, being by design of test box being capable of unidirectional ply under geological process
The shear-deformable laminar shear model casing of shape.
Existing laminar shear model casing is limited to stratiform frame steel member section form, shears the usual planar dimension of box model
Smaller, cabinet self weight is larger.Due to underground structure vibration bench test enlargement, complication increasingly, existing laminar shear model
The components such as the rectangular steel tube of case, in the case where identical in quality, bending stiffness is smaller, in the load action of model earth lateral pressure
It is lower the phenomenon that " bulge " easily occur.
Existing laminar shear model casing is only capable of considering unidirectional scissoring vibration.The underground structure big for length-width ratio, such as
The relative position of tunnel, station structure of sleeve configuration etc., structure and cabinet generally remains unchanged, lateral when needing to carry out structure
When with longitudinal earthquake excitation, it is desirable to which laminar shear model casing can simulate the soil body in orthogonal both direction respectively and exist
Laminar shear deformation under horizontal earthquake action.
Existing laminar shear model casing is all made of that interlayer is guide tracked or the unidirectional slide device of bearing-type, it is difficult to which realization is cut
Cut the switching of direction of vibration.For the existing laminar shear model casing using the guide tracked slide device of interlayer, to change it and cut
Cut direction of vibration, need first to empty the model soil body in case with structure, dismantle lateral Displacement steel plate, then by every layer of frame by
One disassembly, replacement adjust each layer of unidirectional slide device guide rail direction, finally change lateral Displacement steel plate direction and install.It is whole
A process will waste a large number of experiments time, and will cause bigger test error in model clay excavation, the process refilled.
Gap between existing laminar shear model casing adjacent two layers is larger, leads to the outside bulging of the interlayer soil body, influences to try
Test precision.The existing laminar shear case using slide devices such as rectangular steel framework cooperation ball-guide groove, roller bearing-guide groove and bearings
There is a situation where that adjacent steel frame interlayer spacings are excessive;It or is control interlayer spacings, it has to use small ball, small bearing
Deng to reduce the vertical bearing capacity of slide device.Although cabinets cavity setting rubber pattern can be such that the soil body does not leak from interlayer
Out, but since rubber pattern is more soft, the outside bulging of the interlayer soil body increases side wall frictional force, will affect test accuracy.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of two-way changeable big
Type stacked in layers formula shear model box, by changing shear model box stratiform steel-frame structure form and interlayer slip mechanism, together
When consider lateral Displacement plate installation direction, to overcome the shortcomings of above-mentioned existing model casing.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of two-way changeable large-scale stacked in layers formula shear model box, including stacked in layers cabinet, the stacked in layers case
Body includes multi-layer H fashioned iron frame, one layer of bottom frame and a bottom plate, and the H profile steel frame and bottom frame are stacked to form stratiform
The side wall of cabinet is stacked, the bottom plate is fixed in bottom frame, between adjacent layer H profile steel frame and H profile steel frame and bottom frame
It is provided between frame without guide tracked slipping mechanism, the layered one group of opposing sidewalls outside for stacking cabinet is fixed with lateral Displacement
Steel plate, and this group of opposing sidewalls are perpendicular to the direction of vibration of shake table.
Further, the bottom frame is fixed on shake table by anchorage bolt.
Further, the web of the H profile steel frame is parallel to shake table setting, and two side wing edges are arranged perpendicular to shake table,
Thin steel bar is installed on the outer side wing edge of the H profile steel frame, is provided on the thin steel bar for fixing the lateral Displacement steel plate
Multiple prepared screw-bolt holes.
Further, the interlamellar spacing of H profile steel frame described in adjacent layer is adjustably determined by the height without guide tracked slipping mechanism.
Further, described to include two billets and a slide assemblies, two billets point without guide tracked slipping mechanism
It is not installed on upper layer and lower layer frame, the both ends of the slide assemblies contact described two billets respectively.
Further, the slide assemblies include packaging type groove and the multiple steel being set in packaging type groove rolling
Ball, each steel spin freely roll in the packaging type groove.
Further, the layered inside sidewalls for stacking cabinet are provided with water proof rubber film.
Further, the bottom frame is C-shaped channel steel, and the edge of a wing is upward.
Further, the bottom plate, which is equipped with, increases frictional layer.
Further, the height of the lateral Displacement steel plate is equal with stacked in layers box height.
Compared with prior art, the invention has the following advantages:
1, the present invention forms stacked in layers cabinet using H profile steel frame, and structure type rigidity is big, light weight, is suitable for long, big
The shear model box of plane.
2, in the present invention, by using H profile steel production stratiform steel frame, it can be achieved that making the shear model of big planar dimension
Case, and the total quality of model casing is reduced, model casing self inertia power can be reduced to the shadow of test in the case where guaranteeing rigidity
It rings.
3, the present invention makes interlayer slip mechanism by the steel spin being mounted in packaging type groove, effectively improves carrying
Power reduces interlayer slip frictional force.
4, the present invention can realize the adjusting of H profile steel frame interlayer spacing by adjusting the total height of slipping mechanism, can reduce
Interlayer spacings even can control to 1~2mm according to actual needs.
5, the present invention uses H profile steel frame and the combination without guide tracked slipping mechanism, and no guide tracked slipping mechanism includes steel pad
Plate and slide assemblies, billet are fixed at the web of H profile steel frame, and surface is horizontal, no guide rail, and steel spin is recessed in slide assemblies
It can freely be rolled along different directions in slot, so that the direction of vibration of shear model box is only by sidewise restraint steel plate control outside model casing
System, and then the scissoring vibration direction of model casing can be switched fast by only changing the fixed-direction of sidewise restraint steel plate.
6, the present invention is realizing what shear direction can be switched without dismantling to the model in model cabinet and model casing
On the basis of function, a large amount of test period is saved.
Detailed description of the invention
Fig. 1 is the top view of one embodiment of the invention;
Fig. 2 is the main view of embodiment illustrated in fig. 1;
Fig. 3 is the left view of embodiment illustrated in fig. 1;
Fig. 4 is the A-A sectional view of embodiment illustrated in fig. 1;
Fig. 5 is the sidewise restraint steel plain figure of embodiment illustrated in fig. 1;
In figure, 1, anchorage bolt;2, bottom plate;3, increase frictional layer;4, without guide tracked slipping mechanism;5, bottom frame;6,H
Fashioned iron frame;7, rubber pattern;8, thin steel bar;9, bolt;10, prepared screw-bolt hole;11, lateral Displacement steel plate;12, fixed bolt hole.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
As Figure 1-Figure 5, the present embodiment provides a kind of two-way changeable large-scale stacked in layers formula shear model boxes, including
Stacked in layers cabinet, the stacked in layers cabinet include 6, one layers of bottom frame 5 of multi-layer H fashioned iron frame and a bottom plate 2,6 He of H profile steel frame
Bottom frame 5 is stacked the side wall to form stacked in layers cabinet, and bottom plate 2 is fixed in bottom frame 5, adjacent layer H profile steel frame 6
Between and H profile steel frame 6 and bottom frame 5 between be provided with without guide tracked slipping mechanism 4, one group of stacked in layers cabinet is opposite
Side-wall outer side is fixed with lateral Displacement steel plate 11, and this group of opposing sidewalls are perpendicular to the direction of vibration of shake table.Bottom frame 5 is logical
Anchorage bolt 1 is crossed to be fixed on shake table.
H profile steel frame 6 is hollow, rectangular frame-type, and web is parallel to shake table setting, and two side wing edges are set perpendicular to shake table
It sets, thin steel bar 8 is installed on the outer side wing edge of H profile steel frame 6.Thin steel bar 8 is fixed on the edge of a wing on the outside of every layer of 6 four side of H profile steel frame
Where middle part, i.e. web at height, and the prepared screw-bolt hole 10 on thin steel bar, for fixing lateral Displacement steel plate 11.Thin steel bar 8
On prepared screw-bolt hole 10 need to be aligned with the fixed bolt hole 12 on lateral Displacement steel plate 11, it is ensured that installation, disassembly lateral Displacement
Steel plate is gone on smoothly.In the present embodiment, the bolt 9 on the outside of the horizontal long side of cabinet through fixed lateral Displacement steel plate is fixed
Lateral Displacement steel plate 11 can disassemble limit steel plate 11 from long side when needing to change shearing case direction of vibration,
It is fixed at the prepared screw-bolt hole 10 on the outside of cabinet horizontal short on thin steel bar by bolt 9, without dismantling cabinet itself.
No guide tracked slipping mechanism 4 is set to the web specific location of H profile steel frame, including two billets and a sliding
Component, two billets are respectively arranged on upper layer and lower layer frame, and the both ends of slide assemblies contact two billets respectively.It is adjacent
When two layers H profile steel frame overlapping, the slide assemblies institute with H profile steel frame described in H profile steel frame described in upper layer and lower layer respectively
State billet contact.
Slide assemblies include packaging type groove and multiple (4-12) steel spin for being set in packaging type groove, each steel rolling
Ball freely rolls in packaging type groove.No guide tracked slipping mechanism 4 can according to need change total height, to adjust between interlayer
Gap;Can be as needed, the spin quantity without guide tracked slipping mechanism 4 is adjusted, with 4 steel spin for one in the present embodiment
Group.
In the present embodiment, can according to the edge of a wing height of H profile steel, adjust interlayer slipping mechanism total height, reduce interlayer between
Gap reduces outside bulging of the shearing case soil body at interlayer spacings.
The inside sidewalls of stacked in layers cabinet are provided with water proof rubber film 7, form waterproof inner cavity by sweat soldering technique,
It is covered in the inner wall that multi-layer H fashioned iron frame stacks cabinet.
Bottom frame 5 is C-shaped channel steel, and the edge of a wing is upward.
Bottom plate 2, which is equipped with, increases frictional layer 3, can be using bonding rubble, fine sand etc., to improve cabinet ground and model clay
Frictional force.
The height of lateral Displacement steel plate 11 and box height are contour, install steel plate by bolt and form lateral Displacement system,
The horizontal rigidity in horizontal direction is provided for model casing, effective simulated formation is shear-deformable under effect of vibration.
The above measure enables model casing in civil engineering ground and underground engineering shaketalle test, and more effectively simulation is former
The seismic response on type stratum, more efficient test.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of two-way changeable large-scale stacked in layers formula shear model box, including stacked in layers cabinet, which is characterized in that the layer
It includes multi-layer H fashioned iron frame (6), one layer of bottom frame (5) and a bottom plate (2) that shape, which stacks cabinet, the H profile steel frame (6) and bottom
Frame (5) is stacked the side wall to form stacked in layers cabinet, and the bottom plate (2) is fixed in bottom frame (5), adjacent layer H
It is provided between fashioned iron frame (6) and between H profile steel frame (6) and bottom frame (5) without guide tracked slipping mechanism (4), the layer
One group of opposing sidewalls outside that shape stacks cabinet is fixed with lateral Displacement steel plate (11), and this group of opposing sidewalls are perpendicular to shake table
Direction of vibration.
2. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that the bottom
Layer frame (5) is fixed on shake table by anchorage bolt (1).
3. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that the H
The web of fashioned iron frame (6) is parallel to shake table setting, and two side wing edges are arranged perpendicular to shake table, the outside of the H profile steel frame (6)
Thin steel bar (8) are installed on the edge of a wing, are provided on the thin steel bar (8) for fixing the multiple pre- of the lateral Displacement steel plate (11)
Stay bolt hole (10).
4. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that adjacent layer
The interlamellar spacing of the H profile steel frame (6) is adjustably determined by the height without guide tracked slipping mechanism (4).
5. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that the nothing
Guide tracked slipping mechanism (4) includes two billets and a slide assemblies, and two billets are respectively arranged in upper layer and lower layer frame
On, the both ends of the slide assemblies contact described two billets respectively.
6. two-way changeable large-scale stacked in layers formula shear model box according to claim 5, which is characterized in that the cunning
Dynamic component includes packaging type groove and multiple steel spin for being set in the packaging type groove, and each steel spin is in the packaging type
It is freely rolled in groove.
7. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that the layer
The inside sidewalls that shape stacks cabinet are provided with water proof rubber film (7).
8. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that the bottom
Layer frame (5) is C-shaped channel steel, and the edge of a wing is upward.
9. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that the bottom
Plate (2), which is equipped with, increases frictional layer (3).
10. two-way changeable large-scale stacked in layers formula shear model box according to claim 1, which is characterized in that described
The height of lateral Displacement steel plate (11) is equal with stacked in layers box height.
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Cited By (4)
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CN110307024A (en) * | 2019-05-22 | 2019-10-08 | 河海大学 | A kind of liner structure anchor pole fast application device and its applying method |
CN110455480A (en) * | 2019-08-30 | 2019-11-15 | 天津大学 | A kind of three-dimensional limit connector for 3-D stacks shear model box |
CN112834365A (en) * | 2021-02-24 | 2021-05-25 | 西安石油大学 | Bidirectional laminated shear soil box for vibration table test and using method |
CN113848026A (en) * | 2021-10-08 | 2021-12-28 | 天津大学 | Waterproof viscoelastic boundary constraint underwater multipoint earthquake input shearing box |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110307024A (en) * | 2019-05-22 | 2019-10-08 | 河海大学 | A kind of liner structure anchor pole fast application device and its applying method |
CN110307024B (en) * | 2019-05-22 | 2020-10-16 | 河海大学 | Rapid application device and application method for anchor rod with lining structure |
CN110455480A (en) * | 2019-08-30 | 2019-11-15 | 天津大学 | A kind of three-dimensional limit connector for 3-D stacks shear model box |
CN110455480B (en) * | 2019-08-30 | 2023-07-14 | 天津大学 | Three-dimensional limiting connecting piece for three-dimensional laminated shearing model box |
CN112834365A (en) * | 2021-02-24 | 2021-05-25 | 西安石油大学 | Bidirectional laminated shear soil box for vibration table test and using method |
CN113848026A (en) * | 2021-10-08 | 2021-12-28 | 天津大学 | Waterproof viscoelastic boundary constraint underwater multipoint earthquake input shearing box |
CN113848026B (en) * | 2021-10-08 | 2023-09-12 | 天津大学 | Waterproof type viscoelastic boundary constraint underwater multipoint earthquake input shear box |
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