CN218444376U - Device for measuring displacement of soil surface of soil-structure interaction vibration table test - Google Patents
Device for measuring displacement of soil surface of soil-structure interaction vibration table test Download PDFInfo
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- CN218444376U CN218444376U CN202221404018.4U CN202221404018U CN218444376U CN 218444376 U CN218444376 U CN 218444376U CN 202221404018 U CN202221404018 U CN 202221404018U CN 218444376 U CN218444376 U CN 218444376U
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Abstract
The utility model discloses a soil-structure interaction shaking table test soil meter displacement's measuring device, fill including acting as go-between displacement meter, shaking table, inside has the test box of stickness soil, connects rope and built-in fitting, test box locates on the shaking table, the built-in fitting bury underground in the soil body surface department of stickness soil, connect the setting of rope level, connect the one end of rope with the built-in fitting links to each other, connect the other end of rope with the displacement meter of acting as go-between links to each other. The utility model discloses a measuring device of native-structure interaction shaking table test soil meter displacement relies on to bury the built-in fitting at the soil meter, is connected with the displacement meter of acting as go-between again, through the displacement meter direct measurement soil meter horizontal displacement data of acting as go-between, reduces measuring error, and data are more accurate, and measurement accuracy is high, and need not to adopt high value equipment, and equipment cost is low.
Description
Technical Field
The utility model belongs to the technical field of the soil body displacement measurement, especially, relate to a measuring device of soil meter displacement.
Background
The earthquake shaking table simulation test can simulate the earthquake reaction of the building under the action of a real earthquake, and is widely applied in the field of building earthquake resistance research. The soil-structure interaction shaking table test is an important research means for researching the soil-structure interaction problem under the action of an earthquake, and the measurement of the soil surface displacement of the soil-structure interaction shaking table test is key data required to be obtained in the test.
At present, three types of soil-structure interaction shaking table test soil surface displacement are mainly obtained, namely, the method can bring numerical errors generated by integral through soil surface acceleration integral; secondly, by measuring the displacement of the outer frame of the soil box, as foam or sponge vibration damping materials with certain thickness are usually arranged between the outer frame of the soil box and the soil body, errors can be caused by relative sliding between the vibration damping materials and the soil body; thirdly, a non-contact laser displacement meter is adopted for measurement, and the method needs laser displacement meter equipment and is high in test cost. In view of the defects of the prior art, a measuring device for testing soil surface displacement by using an earth-structure interaction vibrating table with small measuring error and low testing cost is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome not enough and the defect mentioned in the above background art, provide a measuring device of the experimental soil table displacement of soil-structure interaction shaking table that measuring error is little, experimental cost is low. In order to solve the technical problem, the utility model provides a technical scheme does:
the measuring device comprises a stay wire displacement meter, a vibrating table, a test box body filled with cohesive soil, a connecting rope and an embedded part, wherein the test box body is arranged on the vibrating table, the embedded part is embedded in the soil body surface of the cohesive soil, the connecting rope is horizontally arranged, one end of the connecting rope is connected with the embedded part, and the other end of the connecting rope is connected with the stay wire displacement meter.
The utility model discloses in, above-mentioned connection rope can adopt the steel strand wires, above-mentioned stay wire displacement meter, shaking table adopt conventional test instrument, equipment can, do not have the requirement to the model number, as long as can realize the utility model discloses required effect can.
In the above measuring device, preferably, the embedded part includes a steel plate horizontally arranged and embedded in the cohesive soil, a first metal rod is vertically and fixedly connected to the center of the steel plate, and a plurality of second metal rods are fixedly arranged between the edge of the steel plate and the first metal rod.
In the above measuring device, preferably, the steel plate is square, the second metal rods are provided with 4 pieces of second metal rods, one ends of the 4 pieces of second metal rods are respectively and fixedly arranged at four corners of the steel plate, and the other ends of the 4 pieces of second metal rods are fixedly arranged at the same height of the first metal rods.
In the above measuring device, preferably, the upper end of the second metal rod is located inside the soil body of the cohesive soil.
In the above measuring device, preferably, the first metal rod and the second metal rod are provided with threads on their surfaces.
The utility model discloses in rigid coupling between above-mentioned first metal pole, second metal pole and the steel sheet can adopt the welding. The embedded part adopting the structure is beneficial to improving the stability of the embedded part at the surface of the cohesive soil. The second metal rods are all located in the soil body of the cohesive soil, so that the contact area of the embedded part and the cohesive soil is increased, and the stability of the embedded part is improved. Especially all be equipped with the screw thread on first metal pole and second metal pole surface, be favorable to increasing the frictional force of first metal pole, second metal pole and stickness soil, can further improve the stability of built-in fitting at the stickness soil table, be applicable to the measurement of soil table displacement more, be applicable to the utility model discloses a measure the scene, measuring error is littleer, and measurement accuracy is higher. In addition, the embedded part with the structure can be repeatedly used without special maintenance. On the whole, above-mentioned built-in fitting preparation, simple installation, but reuse, it is effectual to cohere with the stickness soil, and the displacement meter direct measurement soil table horizontal displacement data of acting as go-between of being convenient for reduces measuring error, and measurement accuracy is high.
In the above measuring device, preferably, the top of the first metal rod is located outside the soil body of the cohesive soil, and one end of the connecting rope is fixedly arranged at the top of the first metal rod. The connecting rope is not directly contacted with the cohesive soil body, so that the arrangement, the disassembly and the repeated utilization of the measuring device are more facilitated, and the influence on the measuring result is small.
In the above measuring device, preferably, the stay wire displacement meter is fixedly arranged on the ground through a support, and the height of the stay wire displacement meter is kept the same as the height of the top of the embedded part. When the stay wire displacement meter is fixedly arranged on the bracket, the position of the stay wire displacement meter can be preferably adjusted according to the height of the embedded part, namely, the stay wire displacement meter can be movably and fixedly arranged on the bracket so as to keep the height of the stay wire displacement meter and the bracket the same.
Utilize the utility model discloses a during measuring device, at first carry out measuring device's installation and lay, can adopt following mode: (1) Vertically placing the embedded part into a cohesive soil surface of the test box body, and backfilling the cohesive soil to cover the embedded part; (2) fixing a vertical bracket; (3) arranging a stay wire displacement meter at the top of the vertical bracket; (4) And arranging a steel strand at the top of the embedded part, and connecting the end of the steel strand with a stay wire displacement meter to complete the installation of the measuring device. During measurement, the vibration table is opened, the absolute displacement of the soil surface of the cohesive soil can be measured according to the measurement data of the stay wire displacement meter, the measurement precision is high, the error is few, and expensive equipment is not required.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a measuring device of native-structure interaction shaking table test soil meter displacement relies on to bury the built-in fitting at the soil meter, is connected with the displacement meter of acting as go-between again, through the displacement meter direct measurement soil meter horizontal displacement data of acting as go-between, reduces measuring error, and data are more accurate, and measurement accuracy is high, and need not to adopt high value equipment, and equipment cost is low.
2. The utility model discloses a measuring device of native-structure interaction shaking table test soil table displacement is applicable to the experimental stickness soil table horizontal displacement measuring situation of native-structure interaction shaking table, and the device simple structure, arrange and dismantle the convenience, save spatial position, do benefit to manual operation.
3. The utility model discloses a measuring device of soil-structure interaction shaking table test soil table displacement's built-in fitting that adopts can repeat repetitious usage, need not special maintenance, maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a device for measuring displacement of a soil surface in a soil-structure interaction shaking table test according to an embodiment.
FIG. 2 is a front view of an embedment in the embodiment.
Fig. 3 is a top view of an embedment in the embodiment.
Illustration of the drawings:
1. a pull wire displacement meter; 2. embedding parts; 3. cohesive soil; 4. a test box body; 5. connecting ropes; 6. a vibration table; 7. a ground surface; 8. a support; 9. a steel plate; 10. a second metal rod; 11. a first metal rod; 12. and (6) welding.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by an existing method.
Example (b):
as shown in fig. 1, the device for measuring the displacement of the soil surface of the soil-structure interaction shaking table test in the embodiment includes a guy displacement meter 1, a shaking table 6, a test box 4 filled with cohesive soil 3 inside, a connection rope 5 (in the embodiment, a steel strand) and an embedded part 2, wherein the test box 4 is arranged on the shaking table 6, the embedded part 2 is embedded in the soil surface of the cohesive soil 3, the connection rope 5 is horizontally arranged, one end of the connection rope 5 is connected with the embedded part 2, and the other end of the connection rope 5 is connected with the guy displacement meter 1. The specific types of the wire displacement meter 1 and the vibrating table 6 may be unlimited.
As shown in fig. 2 and 3, in this embodiment, the embedded part 2 includes a steel plate 9 horizontally disposed and embedded in the cohesive soil 3, a first metal rod 11 is vertically and fixedly connected to a center of the steel plate 9, and a plurality of second metal rods 10 are further and fixedly connected between an edge of the steel plate 9 and the first metal rod 11. The above-mentioned fixing mode can adopt welding, and the welding seam 12 is not shown in fig. 2 and fig. 3.
Specifically, in this embodiment, the steel plate 9 is square, 4 second metal rods 10 are provided, one ends of the 4 second metal rods 10 are respectively fixed at four corners of the steel plate 9, and the other ends of the 4 second metal rods 10 are fixed at the same height of the first metal rod 11.
In this embodiment, the upper end of the second metal rod 10 is located inside the soil body of the cohesive soil 3.
In this embodiment, the first metal rod 11 and the second metal rod 10 are provided with threads on the surfaces thereof.
In this embodiment, the top of the first metal rod 11 is located outside the soil of the cohesive soil 3, and one end of the connection rope 5 is fixedly disposed on the top of the first metal rod 11.
In this embodiment, the stay wire displacement meter 1 is fixed on the ground 7 through a bracket 8, the height of the stay wire displacement meter 1 is the same as the top height of the embedded part 2, and the stay wire displacement meter 1 and the bracket 8 are movably connected.
When the measuring device of the present embodiment is used, the mounting and layout of the measuring device are performed first, and the following method can be adopted: (1) Vertically placing the embedded part 2 into the soil surface of the cohesive soil 3 of the test box body 4, and backfilling the cohesive soil 3 to cover the embedded part 2; (2) fixing a vertical bracket 8; (3) the top of the bracket 8 is provided with a stay wire displacement meter 1; (4) And arranging a steel strand at the top of the embedded part 2, and connecting the end of the steel strand with the stay wire displacement meter 1 to finish the installation of the measuring device. During measurement, the vibrating table 6 is started, the soil surface absolute displacement of the cohesive soil 3 can be measured according to the measurement data of the stay wire displacement meter 1, the measurement precision is high, the error is small, and expensive equipment is not required.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a measuring device of soil-structure interaction shaking table test soil table displacement, its characterized in that, including displacement meter (1) of acting as go-between, shaking table (6), inside is filled with test box (4), connection rope (5) and built-in fitting (2) of stickness soil (3), test box (4) are located on shaking table (6), built-in fitting (2) bury underground in the soil body surface department of stickness soil (3), connect rope (5) level setting, the one end of connecting rope (5) with built-in fitting (2) link to each other, the other end of connecting rope (5) with displacement meter (1) of acting as go-between links to each other.
2. The measuring device according to claim 1, wherein the embedded part (2) comprises a steel plate (9) which is horizontally arranged and embedded in the cohesive soil (3), a first metal rod (11) is vertically and fixedly connected to the center of the steel plate (9), and a plurality of second metal rods (10) are fixedly arranged between the edge of the steel plate (9) and the first metal rod (11).
3. The measuring device according to claim 2, wherein the steel plate (9) is square, the second metal rods (10) are provided with 4, one end of each of the 4 second metal rods (10) is fixedly arranged at each of four corners of the steel plate (9), and the other end of each of the 4 second metal rods (10) is fixedly arranged at the same height of the first metal rod (11).
4. A measuring device as claimed in claim 2, characterized in that the upper end of the second metal rod (10) is located inside the body of the cohesive soil (3).
5. A measuring device according to any of the claims 2-4, characterized in that the first metal rod (11) and the second metal rod (10) are provided with a thread on their surface.
6. A measuring device according to any one of claims 2-4, characterized in that the top of the first metal rod (11) is located outside the body of the cohesive soil (3), and one end of the connecting rope (5) is fixed to the top of the first metal rod (11).
7. The measuring device according to any one of claims 1-4, characterized in that the stay wire displacement meter (1) is fixed on the ground (7) by a bracket (8), and the height of the stay wire displacement meter (1) is kept the same as the height of the top of the embedded part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221404018.4U CN218444376U (en) | 2022-06-07 | 2022-06-07 | Device for measuring displacement of soil surface of soil-structure interaction vibration table test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221404018.4U CN218444376U (en) | 2022-06-07 | 2022-06-07 | Device for measuring displacement of soil surface of soil-structure interaction vibration table test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218444376U true CN218444376U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221404018.4U Active CN218444376U (en) | 2022-06-07 | 2022-06-07 | Device for measuring displacement of soil surface of soil-structure interaction vibration table test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218444376U (en) |
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2022
- 2022-06-07 CN CN202221404018.4U patent/CN218444376U/en active Active
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