CN109724761B - Vertical cylinder group bin model test platform - Google Patents
Vertical cylinder group bin model test platform Download PDFInfo
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- CN109724761B CN109724761B CN201910128780.0A CN201910128780A CN109724761B CN 109724761 B CN109724761 B CN 109724761B CN 201910128780 A CN201910128780 A CN 201910128780A CN 109724761 B CN109724761 B CN 109724761B
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000004088 simulation Methods 0.000 claims abstract description 74
- 230000003993 interaction Effects 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 abstract 1
- 238000004026 adhesive bonding Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to a vertical cylinder group bin model test platform which comprises at least three single bin simulation units which are arranged on corresponding vibrating tables in use, wherein each single bin simulation unit comprises a support column and a simulation bin body connected to the upper end of the support column, a support column connecting piece is arranged between the support columns of two adjacent single bin simulation units, a bin body connecting piece is arranged between the simulation bin bodies of two adjacent single bin simulation units, a first force sensor for measuring interaction force between the support columns is arranged on the support column connecting piece, and a second force sensor for measuring interaction force between the simulation bin bodies is arranged on the bin body connecting piece. The invention provides a single-bin model test platform capable of measuring interaction stress among single bins of a neutral barrel group bin in a vibration environment.
Description
Technical Field
The invention relates to a vertical cylinder group bin model test platform in the field of grain storage structure power research tests.
Background
The single bin made of reinforced concrete is a commonly used bin type in grain storage, and in order to improve the grain storage quantity, a plurality of single bins are often connected and poured, namely a group bin structure.
When in use, grains are filled in each single bin in the group bin structure. The grain can generate interaction force between the single bin walls and between two adjacent single bins, the interaction force changes according to the environment, particularly in the vibration environment acted by the earthquake environment, the interaction force between the single bins can change, and the earthquake action force of some single bins in the group bins can be the largest, namely the single bins are weak bins and are easily damaged by the earthquake, the structural strength of the single bins needs to be enhanced when the single bins are designed, the corresponding theoretical basis is lacked in the prior art, the magnitude of the interaction force between the single bins in the group bins cannot be calculated or measured, the determination of which single bin in the group bin structure in the vibration environment has the largest stress cannot be performed, and the structural design of a certain single bin is not reinforced, so that the problem that the weak bin structure is easily damaged in the actual working condition is caused.
Disclosure of Invention
The invention aims to provide a single-bin model test platform capable of measuring stress changes among single bins in a vibration environment.
In order to solve the technical problems, the technical scheme of the invention is as follows:
The utility model provides a stand section of thick bamboo crowd storehouse model test platform, including at least three single storehouse analog cell that is used for installing on corresponding shaking table during the use, each single storehouse analog cell all includes the support column and connects in the simulation storehouse body of support column upper end, be provided with the support column connecting piece between the support column of two adjacent single storehouse analog cells, be provided with storehouse body connecting piece between the simulation storehouse body of two adjacent single storehouse analog cells, be provided with the first force sensor of measuring the interaction force between the support column on the support column connecting piece, be provided with the second force sensor of measuring the interaction force between the simulation storehouse body on the storehouse body connecting piece.
The support column connecting piece is a connecting screw rod, two ends of the connecting screw rod are fixedly connected with corresponding support columns through bolts respectively, and the first force sensor is a strain force sensor attached to the outer side of the connecting screw rod.
The connecting screw rod is made of aluminum materials.
The bin body connecting piece is made of organic glass, the simulated bin body is of a cylindrical structure, arc-shaped connecting concave parts matched with the corresponding simulated bin body bodies Zhou Shi are formed in the two opposite sides of the bin body connecting piece, and the second force sensor is a bidirectional strain force sensor attached to the bin body connecting piece.
The bottom of each single-bin simulation unit is connected with the corresponding vibrating table through the device bottom plate, and each single-bin simulation unit comprises a unit bottom plate which is detachably connected with the device bottom plate through bolts, and a support column is connected to the unit bottom plate.
Each device bottom plate is of a square structure, and the unit bottom plates of two adjacent single-bin simulation units are matched and stuck together.
The device bottom plate is formed by splicing a left bottom plate part and a right bottom plate part, a connecting groove crossing the left bottom plate part and the right bottom plate part along the left-right direction is arranged on the device bottom plate, a connecting plate is adaptively arranged in the connecting groove, and two ends of the connecting plate are respectively connected with the left bottom plate part and the right bottom plate part through bolts.
The device bottom plate has the hookup circle that is used for realizing linking to each other with the shaking table that is located the shaking table outside during the use, and the inboard of hookup circle is arranged in to single storehouse analog element, and assembled upright section of thick bamboo crowd storehouse model test platform is still including being used for realizing the shaking table with the bottom plate connecting piece that the hookup circle links to each other, bottom plate connecting piece including the shaking table connection curb plate that links to each other with shaking table lateral wall through the bolt and the bottom plate connection curb plate that links to each other with the hookup circle bottom through the bolt, shaking table connection curb plate and bottom plate connection curb plate constitute L shape structure.
The beneficial effects of the invention are as follows: when the single-bin simulation unit is used, each single-bin simulation unit of the vertical cylinder group bin model test platform is arranged on the vibrating table, the vibration of the vibrating table simulates earthquake, each single-bin simulation unit is driven to vibrate when the vibrating table vibrates, the adjacent single-bin simulation units generate acting force with each other when each single-bin simulation unit vibrates along with the vibrating table, the acting force between the upper ends of the single-bin simulation units is measured through the second force sensor, the acting force between the lower ends of the single-bin simulation units is measured through the first force sensor, the interaction force between the adjacent single-bin simulation units is reflected through the first force sensor and the second force sensor, and therefore the acting force on which position of the single-bin simulation unit in the group bin structure is can be analyzed to be the largest, and theoretical basis is provided for real single-bin construction.
Drawings
FIG. 1 is a schematic diagram of the structure of a single-bin simulation unit in the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of nine single-bin simulation units of the present invention in use simultaneously;
FIG. 4 is a perspective view of FIG. 3;
FIG. 5 is a schematic view of the structure of the device base plate of the present invention;
FIG. 6 is a schematic diagram of the cooperation of the base plate and the vibration table in the present invention;
FIG. 7 is a schematic view of the base plate connector of FIG. 6;
FIG. 8 is a schematic diagram of the state of one row of three single-bin simulation units in FIG. 3 during testing;
Fig. 9 is a perspective view of fig. 8;
Fig. 10 is an enlarged view at a in fig. 8.
Detailed Description
An embodiment of a vertical cylinder group bin model test platform is shown in fig. 1 to 10: comprising a device floor 5' and nine single-cabin simulation units 10, the central area 54 of the device floor being used for mounting the single-cabin simulation units, the edge area of the device floor forming a connection ring 53 for connection to the vibrating table. In this embodiment, the device bottom plate is made of organic glass, and is formed by splicing a left bottom plate portion 51 and a right bottom plate portion 52, and a connecting groove crossing the left bottom plate portion and the right bottom plate portion along the left-right direction is formed in the device bottom plate, and a connecting plate 11 is adaptively installed in the connecting groove, and two ends of the connecting plate are respectively connected with the left bottom plate portion and the right bottom plate portion through bolts. The widths of the left bottom plate part and the right bottom plate part are consistent, the length of the right bottom plate part is twice that of the left bottom plate part, at most three single-bin simulation units can be installed on the left bottom plate part along the front-back direction, and at most six single-bin simulation units can be installed on the right bottom plate part.
The assembled vertical cylinder group bin model test platform further comprises a bottom plate connecting piece 12 for realizing connection of the vibrating table with the connecting ring, wherein the bottom plate connecting piece comprises a vibrating table connecting side plate 13 connected with the outer side wall of the vibrating table through bolts and a bottom plate connecting side plate 14 connected with the bottom of the connecting ring 53 through bolts, the vibrating table connecting side plate and the bottom plate connecting side plate form an L-shaped structure, and a connecting rib plate 15 is arranged between the vibrating table connecting side plate and the bottom plate connecting side plate. The vibrating table is of a square structure as a whole, and the bottom plate connecting pieces are distributed around the vibrating table, that is to say, the bottom plate connecting pieces are arranged on each side of the vibrating table.
The single-bin simulation unit comprises a unit bottom plate 5 which is detachably connected with a device bottom plate through bolts, the unit bottom plate is of a square structure, a ring beam 3 is connected to the unit bottom plate through a supporting column, the upper end of the ring beam is connected with a simulation bin body 2, a pressure sensor is arranged on the inner wall of the simulation bin body 2, the pressure sensor is a thin film pressure sensor in the embodiment, the simulation bin bodies are of cylindrical structures, the simulation bin bodies of two adjacent single-bin simulation units are connected through a plurality of bin body connecting pieces 6, arc-shaped connecting concave parts 7 which are matched with the corresponding simulation bin bodies at Zhou Shi are arranged on the opposite sides of the bin body connecting pieces, and the arc-shaped connecting concave parts 7 are connected with bin walls of the corresponding simulation bin bodies through bolts. The unit bottom plates of the two adjacent single-bin simulation units are matched and stuck together, that is, when the nine single-bin simulation units are used together, the unit bottom plates of the two adjacent single-bin simulation units are stuck together, the arc-shaped connecting concave parts on two opposite sides of the bin body connecting piece are stuck together with the outer walls of the adjacent simulation bin bodies, and fig. 3 and 4 are for facilitating observation, and an exploded view is used, so that a certain distance is reserved between the two adjacent single-bin simulation units.
A support column connecting piece is arranged between the support columns of two adjacent single-bin simulation units, a first force sensor 31 for measuring acting force between the support columns is arranged on the support column connecting piece, and a second force sensor 61 for measuring acting force between the simulation bin bodies is arranged on the bin body connecting piece. In this embodiment, the support column connecting piece is a connecting screw 30 made of aluminum material, two ends of the connecting screw 30 are respectively fixedly connected with the corresponding support column 4 through nuts 32, screw through holes 35 for the connecting screw to pass through are formed in the corresponding support column, and the first force sensor 31 is a strain type force sensor attached to the outer side of the connecting screw. The second force sensor 61 is a strain type force sensor attached to the bin body connecting piece. The connecting screw 30 is made of aluminum, because aluminum materials are easy to deform, and acting force between the support columns can be easily measured by matching with the strain type force sensor. In other embodiments of the invention: the first force sensor may not be a strain gauge force sensor, for example, the first force sensor may be an S-shaped tension sensor or a spoke-type tension sensor; the second force sensor may also be other than a strain gauge force sensor, for example, a film pressure sensor that is padded between the arcuate connecting recess and the corresponding analog bin.
The upper end of the ring beam is provided with an upward convex positioning boss, the simulation bin body 2 is sleeved on the positioning boss, and the positioning boss and the simulation bin body are fixed through gluing and bolts. The support columns 4 of each single-bin simulation unit are multiple, each support column is sequentially arranged at intervals along the circumferential direction, each support column comprises a vertical support bar 42 and an arc-shaped connecting block 41 which is fixed at the top end of the vertical support bar and is matched with the radian of the ring beam, and the arc-shaped connecting block 41 is fixedly connected with the ring beam through bolts. The unit bottom plate is provided with a support bar positioning groove 8 for corresponding positioning and inserting of each vertical support bar, and the support bar positioning groove 8 and the vertical support bar are fixed through gluing and bolts. The single-bin simulation unit further comprises a discharging cone 9 positioned at the lower side of the simulation bin body, an inner hole of the ring beam is a conical hole matched with the outer conical surface of the discharging cone, the ring beam is sleeved on the outer side of the discharging cone 9, and the discharging cone is fixed with the ring beam through gluing and bolts. The discharging cone, the ring beam, the supporting column, the simulation bin body and the silo connecting piece are all made of organic glass. The top of the simulation bin body is fixedly provided with a silo cover plate 1 made of organic glass, the silo cover plate 1 is of a square structure, adjacent sides of the silo cover plates of two adjacent single-bin simulation units are propped against each other in a face-to-face manner, and thus the tops and bottoms of the two adjacent single-bin simulation units are in contact support, and the overall strength of each single-bin simulation unit is further guaranteed.
When the device is used, each single-bin simulation unit 10 is of an integral structure, a proper number of single-bin simulation units are selected to be mounted on the device bottom plate according to the requirement, the simulation bin bodies of two adjacent single-bin simulation units are connected through the bin body connecting piece, and the strength of the simulation bin bodies in the experiment is ensured. Then, the device bottom plate provided with the single-bin simulation unit is lifted to the vibrating table, the size of the device bottom plate is larger than that of the vibrating table, and the device bottom plate is fixed to the vibrating table through the side surface mounting bottom plate connecting piece of the lower side of the device bottom plate and the vibrating table, so that the connection between the device bottom plate and the vibrating table cannot be affected by the installation of the single-bin simulation unit. The left bottom plate part and the right bottom plate part that the components of a whole that can function independently set up can reduce the cost of manufacture of device bottom plate, in addition, when needing less single storehouse analog unit of number, need not use complete device bottom plate, say only need when experimental to three single storehouse analog unit, can only use left bottom plate part, need when experimental to six single storehouse analog unit, only use right bottom plate part. When the single-bin simulation units interact, deformation of the connecting screw and the bin body connecting piece is caused, a force value corresponding to the deformation is measured through the corresponding strain type force sensor, so that the force value born by each single-bin simulation unit can be analyzed, the single-bin simulation unit with the largest stress position is found, and a theoretical basis is provided for single-bin construction of actual concrete. In other embodiments of the invention: if the connection strength between the components can be ensured only by gluing, the connection between the corresponding components can also be realized only by gluing; of course, the connection between the two corresponding parts can also be achieved by means of bolts only.
Claims (6)
1. A stand section of thick bamboo crowd storehouse model test platform, its characterized in that: the device comprises at least three single-bin simulation units which are arranged on corresponding vibrating tables in use, wherein each single-bin simulation unit comprises a support column and a simulation bin body connected to the upper end of the support column, a support column connecting piece is arranged between the support columns of two adjacent single-bin simulation units, a bin body connecting piece is arranged between the simulation bin bodies of the two adjacent single-bin simulation units, a first force sensor for measuring interaction force between the support columns is arranged on the support column connecting piece, a second force sensor for measuring interaction force between the simulation bin bodies is arranged on the bin body connecting piece, the bottoms of the single-bin simulation units are connected with the corresponding vibrating tables through device bottom plates, each single-bin simulation unit comprises a unit bottom plate which is detachably connected with the device bottom plate through bolts, each unit bottom plate is of a square structure, the unit bottom plates of the two adjacent single-bin simulation units are matched and pasted together, and the device bottom plates are made of organic glass.
2. The vertical cylinder group bin model test platform according to claim 1, wherein: the support column connecting piece is a connecting screw rod, two ends of the connecting screw rod are fixedly connected with corresponding support columns through bolts respectively, and the first force sensor is a strain force sensor attached to the outer side of the connecting screw rod.
3. The vertical cylinder group bin model test platform according to claim 2, wherein: the connecting screw rod is made of aluminum materials.
4. The vertical cylinder group bin model test platform according to claim 1, wherein: the bin body connecting piece is made of organic glass, the simulated bin body is of a cylindrical structure, arc-shaped connecting concave parts matched with the corresponding simulated bin body bodies Zhou Shi are formed in the two opposite sides of the bin body connecting piece, and the second force sensor is a bidirectional strain force sensor attached to the bin body connecting piece.
5. The vertical cylinder group bin model test platform according to claim 1, wherein: the device bottom plate is formed by splicing a left bottom plate part and a right bottom plate part, a connecting groove crossing the left bottom plate part and the right bottom plate part along the left-right direction is arranged on the device bottom plate, a connecting plate is adaptively arranged in the connecting groove, and two ends of the connecting plate are respectively connected with the left bottom plate part and the right bottom plate part through bolts.
6. The vertical cylinder group bin model test platform according to claim 5, wherein: the device bottom plate has the hookup circle that is used for realizing linking to each other with the shaking table that is located the shaking table outside during the use, and the inboard of hookup circle is arranged in to single storehouse analog element, and assembled upright section of thick bamboo crowd storehouse model test platform is still including being used for realizing the shaking table with the bottom plate connecting piece that the hookup circle links to each other, bottom plate connecting piece including the shaking table connection curb plate that links to each other with shaking table lateral wall through the bolt and the bottom plate connection curb plate that links to each other with the hookup circle bottom through the bolt, shaking table connection curb plate and bottom plate connection curb plate constitute L shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128780.0A CN109724761B (en) | 2019-02-21 | 2019-02-21 | Vertical cylinder group bin model test platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128780.0A CN109724761B (en) | 2019-02-21 | 2019-02-21 | Vertical cylinder group bin model test platform |
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| Publication Number | Publication Date |
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| CN109724761A CN109724761A (en) | 2019-05-07 |
| CN109724761B true CN109724761B (en) | 2024-05-24 |
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