CN220794487U - Vibrating wire type reinforcing steel bar meter for measuring mechanical parameters of steel structure - Google Patents
Vibrating wire type reinforcing steel bar meter for measuring mechanical parameters of steel structure Download PDFInfo
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- CN220794487U CN220794487U CN202322554570.2U CN202322554570U CN220794487U CN 220794487 U CN220794487 U CN 220794487U CN 202322554570 U CN202322554570 U CN 202322554570U CN 220794487 U CN220794487 U CN 220794487U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 229910001294 Reinforcing steel Inorganic materials 0.000 title description 16
- 238000009434 installation Methods 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000013459 approach Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a vibrating wire type rebar meter for measuring mechanical parameters of a steel structure, which comprises a vibrating wire type sensor assembly, an installation rod and an installation assembly, wherein the installation rod is arranged at two ends of the vibrating wire type sensor assembly, the installation assembly is arranged at the tail end of the installation rod, the installation assembly comprises an upper fixing sleeve, a connecting column, a lower fixing sleeve, an adjusting stud, a fixing nut and a clamping ring, the upper fixing sleeve is fixedly sleeved at the tail end of the installation rod, the upper fixing sleeve is connected with the lower fixing sleeve through the connecting column, an installation through hole is formed in the surface of the lower fixing sleeve, the fixing nut is fixed in the installation through hole, the adjusting stud penetrates through the fixing nut, a spring is sleeved at the bottom of the adjusting stud, one end of the spring is fixedly connected with the clamping ring, and the other end of the spring is attached to the lower fixing sleeve. The utility model is simple and practical, the clamping is stable, the steel bars with different specifications can be measured under various working conditions, the performance is stable, and the measurement result is accurate.
Description
Technical Field
The utility model belongs to the field of structural safety monitoring, and particularly relates to a vibrating wire type reinforcement meter for measuring mechanical parameters of a steel structure.
Background
In common dock engineering operation, the hydraulic construction that involves mainly includes pier, approach bridge and approach dyke, plays further the supporting role through the drilling bored concrete pile of beating in the junction of approach bridge and approach dyke. However, in some special wharf projects, the cast-in-place pile needs to pass through the leading dike, the leading dike is settled to generate certain negative friction force on the pile body of the cast-in-place pile, and the lower pulling force caused by the negative friction force causes the pile body to generate compression deformation and pile end settlement, so that the influences of pile end foundation damage, pile body damage, uneven settlement of structural objects and the like can be generated. In order to observe the influence of the induced dike deformation on the pile body, the bored pile is required to be subjected to stress monitoring, and the vibration string type reinforcement meter is adopted for measuring more properly.
The vibrating wire type reinforcing bar meter belongs to one of force sensors, and is generally applied to concrete structures such as piles, bridges, wharfs, dock and the like to measure the stress state of reinforcing bars; the method can also be used for measuring the surface stress and strain parameters of steel structures such as steel pull rods, steel supports, steel anchor rods, steel arches, steel beams, steel columns and the like, and the measured steel bars are various in types and different in specification and size; the reinforcing steel bar gauge assembly part can also form an anchor rod dynamometer for measuring the anchoring force, the drawing force and the like of an anchor rod.
Chinese patent No. CN218724899U discloses a vibrating wire type rebar meter, comprising a stress body, a fixed box arranged in the stress body, and a strain gauge penetrating through the fixed box; however, the vibrating wire type rebar meter disclosed in CN218724899U connects a fixing box, a strain gauge and a stress body into a whole by using a manner of fixing with pouring sealant, and has complex structural design and high installation process requirement.
Disclosure of Invention
In order to solve the problems, the utility model discloses a vibrating wire type reinforcing steel bar meter for measuring the mechanical parameters of a steel structure, which is simple and practical, stable in clamping, capable of measuring reinforcing steel bars with different specifications under various working conditions, stable in performance and accurate in measurement result.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a vibrating wire formula bar meter for measuring steel construction mechanical parameters, includes vibrating wire formula sensor assembly, installation pole and installation component, the installation pole sets up the both ends at vibrating wire formula sensor assembly, installation component sets up the end at the installation pole, installation component includes fixed cover, spliced pole, lower fixed cover, adjusting stud, fixation nut, clamps the ring, the fixed end at the installation pole that cup joints of fixed cover on, and fixed cover passes through the spliced pole with fixed cover down and is connected, fixed cover surface is equipped with the installation through-hole down, fixation nut is fixed in the installation through-hole, adjusting stud runs through fixation nut, the spring has been cup jointed to the adjusting stud bottom, the one end fixedly connected with of spring clamps the ring, and the other end is laminated with fixed cover down.
As an improvement of the utility model, the mounting rod is connected with the vibrating wire type sensor assembly through threads.
As an improvement of the utility model, the vibrating wire sensor assembly is provided with an anti-interference cable.
As an improvement of the utility model, the number of the mounting through holes is at least 4, and the plurality of the mounting through holes are uniformly and symmetrically arranged in opposite directions.
As an improvement of the utility model, the clamping ring is in a concave arc shape.
As an improvement of the utility model, the outer side of the fixing nut is symmetrically provided with the spring buckles, and the installation through holes are internally provided with grooves corresponding to the spring buckles.
The beneficial effects of the utility model are as follows:
1. the installation component has adopted adjusting stud, fixation nut, clamping ring, upper fixed cover, lower fixed cover, and adjusting stud runs through the installation through-hole of fixed cover down, and adjusting stud bottom has cup jointed the spring, makes clamping ring and measuring steel bar outer wall closely laminate through adjusting stud, can adapt to the measuring steel bar of different specifications, clamping ring looks symmetry evenly distributed for the clamping force that produces concentrates opposite fastening steel bar, and is very firm after the installation.
2. The vibration wire type sensor component is provided with an anti-interference cable, so that the measurement is ensured not to be interfered by the external environment, and the measurement is more accurate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a mounting assembly of the present utility model;
FIG. 3 is a schematic view of the structure of the lower fixing sleeve of the present utility model;
list of drawing identifiers:
1. a vibrating wire sensor assembly; 2. a mounting rod; 3. a mounting assembly; 4. an upper fixing sleeve; 5. a connecting column; 6. a lower fixing sleeve; 7. adjusting the stud; 8. a fixing nut; 9. a spring buckle; 10. mounting through holes; 11. a clamping ring; 12. a spring; 13. bearing platform; 14. an anti-interference cable.
Detailed Description
The present utility model is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the utility model and not limiting the scope of the utility model.
As shown in the figure, the vibrating wire type rebar meter for measuring the mechanical parameters of the steel structure comprises a vibrating wire type sensor assembly 1 and mounting rods 2 which are connected with two ends of the vibrating wire type sensor assembly 1 in a threaded manner, wherein the ends, far away from the vibrating wire type sensor assembly 1, of the mounting rods 2 are provided with mounting assemblies 3 for fixedly mounting the vibrating wire type rebar meter on a rebar to be measured or other objects to be measured, and the vibrating wire type rebar meter is manufactured by adopting strength round steel through heat treatment for a plurality of times, so that the vibrating wire type rebar meter is high in rigidity and stable in performance.
The mounting assembly 3 comprises an upper fixing sleeve 4, a connecting column 5, a lower fixing sleeve 6, an adjusting stud 7, a fixing nut 8 and a clamping ring 11, wherein the upper fixing sleeve 4 is fixedly connected to the tail end of a mounting rod 2, the outer wall of the upper fixing sleeve 4 is provided with the connecting column 5, the other end of the connecting column 5 is fixedly connected with the lower fixing sleeve 6, the lower fixing sleeve 6 is provided with a mounting through hole 10, the fixing nut 8 is mounted in the mounting through hole 10, the adjusting stud 7 penetrates through the fixing nut 8, a spring 12 is sleeved at the bottom of the adjusting stud 7, one end of the spring 12 is fixedly connected with the clamping ring 11, the other end of the spring is tightly attached to the lower fixing sleeve 6, spring buckles 9 are symmetrically arranged on the outer side of the fixing nut 8, grooves corresponding to the spring buckles are formed in the mounting through hole 10, and the fixing nut 8 is detachably connected with the mounting through the spring buckles 9 and the mounting through hole 10.
As shown in fig. 3, a bearing platform 13 is arranged at the bottom of the mounting through hole 10, and the bearing platform 13 is closely attached to the bottom of the fixing nut 8. The spring buckle 9 is tightly pressed firstly when the fixing nut 8 is installed, so that the spring buckle 9 easily enters the installation through hole 10, and after the installation is finished, the spring buckle 9 is loosened, so that the whole fixing nut 8 cannot rotate in the installation through hole 10, and the installation is stable.
Specifically, the installation through holes 10 are evenly and symmetrically arranged in opposite directions, the number of the installation through holes is at least 4, the number of the clamping rings 11 is four, when the four arc clamping rings 11 fix the cylindrical reinforcing steel bars, the hollow cylinder with the same diameter as the reinforcing steel bars is formed by rotating the adjusting stud 7, and therefore the arc clamping rings 11 are tightly attached to the cylindrical reinforcing steel bars.
The upper fixing sleeve 4 and the lower fixing sleeve 5 are of annular structures, and the inner diameter of the upper fixing sleeve 4 is consistent with the diameter of the mounting rod 2.
The vibrating wire type sensor assembly 1 is provided with an anti-interference cable 14, so that interference of cable length and extreme weather on data acquisition can be avoided, the vibrating wire type sensor assembly 1 comprises a reinforcing steel bar axial force, surface stress, strain parameter measuring sensor and a temperature sensor, the parameters such as the reinforcing steel bar axial force, the surface stress and the strain can be measured, and in addition, a user can further increase a temperature measuring function on the reinforcing steel bar meter according to requirements.
When the device is used, the reinforcing steel bar meter is required to be arranged on the reinforcing steel bar, deformation caused by the stress of the reinforcing steel bar can cause deformation of the steel wire in the instrument welded on the reinforcing steel bar, so that the stress of the steel wire is changed, and the vibration frequency of the steel wire is changed. When in measurement, the electromagnetic coil is utilized to excite the steel string and measure the vibration frequency of the steel string, and the frequency signal is transmitted to the frequency reading device through the cable and converted to obtain the stress variation of the steel bar.
Wherein, the tension and frequency relation is:
F＝K(f i 2 -f 0 2 )×(S 1 +S 2 )/S 1
wherein F is the axial force (KN) of the reinforcement meter, and epsilon is the strain quantity (mu epsilon) of the reinforcement meter; k is the reinforcing steel bar gauge factor (KN/H) z 2 Or mu epsilon/H z 2 )；F i For real-time frequency (H z )，F 0 For the initial frequency (H z )；S 1 For measuring cross-sectional area (mm) of bar 2 )，S 2 Is the section area (mm) of the main rib 2 )。
The stress variation can be calculated by using the above formula.
It should be noted that the foregoing merely illustrates the technical idea of the present utility model and is not intended to limit the scope of the present utility model, and that a person skilled in the art may make several improvements and modifications without departing from the principles of the present utility model, which fall within the scope of the claims of the present utility model.
Claims (6)
1. A vibrating wire type reinforcing bar meter for measuring steel structure mechanical parameter, its characterized in that: including vibrating wire formula sensor subassembly (1), installation pole (2) and installation component (3), installation pole (2) set up the both ends at vibrating wire formula sensor subassembly (1), installation component (3) set up the end at installation pole (2), installation component (3) are including last fixed cover (4), spliced pole (5), lower fixed cover (6), adjusting screw bolt (7), fixation nut (8), clamp ring (11), go up fixed cover (4) and fixedly cup joint the end at installation pole (2), go up fixed cover (4) and be connected through spliced pole (5) with fixed cover (6) down, fixed cover (6) surface is equipped with installation through-hole (10) down, fixation nut (8) are fixed in installation through-hole (10), adjusting screw bolt (7) run through fixation nut (8), spring (12) have been cup jointed to adjusting screw bolt (7) bottom, the one end fixedly connected with clamp ring (11) of spring (12), the other end and laminating of fixed cover (6) down.
2. A vibrating wire rebar meter for measuring mechanical parameters of a steel structure according to claim 1, wherein: the mounting rod (2) is connected with the vibrating wire type sensor assembly (1) through threads.
3. A vibrating wire rebar meter for measuring mechanical parameters of a steel structure according to claim 1, wherein: an anti-interference cable (14) is arranged on the vibrating wire type sensor assembly (1).
4. A vibrating wire rebar meter for measuring mechanical parameters of a steel structure according to claim 1, wherein: the number of the mounting through holes (10) is at least 4, and the plurality of the mounting through holes (10) are uniformly and symmetrically arranged in opposite directions.
5. A vibrating wire rebar meter for measuring mechanical parameters of a steel structure according to claim 1, wherein: the clamping ring (11) is in a concave arc shape.
6. A vibrating wire rebar meter for measuring mechanical parameters of a steel structure according to claim 1, wherein: the outside of the fixed nut (8) is symmetrically provided with a spring buckle (9), and a groove corresponding to the spring buckle (9) is arranged in the installation through hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322554570.2U CN220794487U (en) | 2023-09-20 | 2023-09-20 | Vibrating wire type reinforcing steel bar meter for measuring mechanical parameters of steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322554570.2U CN220794487U (en) | 2023-09-20 | 2023-09-20 | Vibrating wire type reinforcing steel bar meter for measuring mechanical parameters of steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220794487U true CN220794487U (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322554570.2U Active CN220794487U (en) | 2023-09-20 | 2023-09-20 | Vibrating wire type reinforcing steel bar meter for measuring mechanical parameters of steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220794487U (en) |
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2023
- 2023-09-20 CN CN202322554570.2U patent/CN220794487U/en active Active
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