CN218211702U - Concrete strain monitoring device - Google Patents
Concrete strain monitoring device Download PDFInfo
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- CN218211702U CN218211702U CN202222212626.1U CN202222212626U CN218211702U CN 218211702 U CN218211702 U CN 218211702U CN 202222212626 U CN202222212626 U CN 202222212626U CN 218211702 U CN218211702 U CN 218211702U
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Abstract
The utility model discloses a concrete strain monitoring device, which comprises an upper mounting rod; the upper mounting rod is vertically fixed at the top end of the spherical mounting seat, and the lower mounting rod is vertically fixed at the bottom end of the spherical mounting seat; the spherical mounting seat is of a spherical solid structure, and a plurality of mounting screw sockets are arranged on the surface of the spherical mounting seat; each mounting screw is internally provided with a strain monitoring unit; one end of the strain monitoring unit is detachably fixed with the mounting screw, and the other end of the strain monitoring unit extends towards a preset strain measurement point inside the concrete structure; the strain monitoring unit is used for acquiring strain data of a preset strain measurement point in the concrete structure; the utility model installs the strain monitoring unit in the installation screw, and adopts the strain monitoring unit to extend towards the direction of the preset strain measurement measuring point inside the concrete structure, thereby realizing the strain data measurement requirement of any measuring point inside the concrete structure; simple structure, simple to operate, the installation effectiveness is higher.
Description
Technical Field
The utility model belongs to the technical field of the strain monitoring equipment of concrete, in particular to concrete strain monitoring device.
Background
Currently, for monitoring the stress distribution of a concrete structure, the internal strain of the concrete structure is mostly measured and calculated; the internal strain measurement mode of the existing concrete structure is mainly realized by adopting a means of an embedded optical fiber sensor or an embedded strain gauge; the optical fiber sensor has limited application due to its high cost; the existing installation mode of the embedded strain gauge is mainly to bind the strain gauge on structural steel bars and then to complete the pouring construction of concrete.
The existing embedded strain gauge installation process has more limitations, such as: measuring points can be arranged at the positions near the reinforcing steel bars, but binding and installation are difficult to realize in a plain concrete structure; therefore, the range of use of the embedded strain gauge is greatly limited; meanwhile, due to the influence of the arrangement of the steel bars inside the structure, the installation direction of the strain gauge can only be consistent with the direction of the steel bars, and strain measurement in other directions in the space can not be performed, so that the measurement of the internal strain of the structure in the later period is seriously influenced.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides a concrete strain monitoring device to the installation of solving current formula of buryying strainometer receives arranging the restriction of reinforcing bar in the structure, can't realize the technical problem of the strain monitoring of the arbitrary direction in space.
In order to achieve the purpose, the utility model adopts the technical proposal that:
the utility model provides a concrete strain monitoring device, which comprises an upper mounting rod, a spherical mounting seat, a lower mounting rod and a plurality of strain monitoring units;
the upper mounting rod is vertically fixed at the top end of the spherical mounting seat, and the lower mounting rod is vertically fixed at the bottom end of the spherical mounting seat; the spherical mounting seat is of a spherical solid structure, and a plurality of mounting screw ports (21) are formed in the surface of the spherical mounting seat; each mounting screw is internally provided with a strain monitoring unit;
one end of the strain monitoring unit is detachably fixed with the mounting screw, and the other end of the strain monitoring unit extends towards a preset strain measurement point inside the concrete structure; and the strain monitoring unit is used for acquiring strain data of a preset strain measurement point in the concrete structure.
Furthermore, the strain monitoring unit comprises a fixed support, two connecting claws and a concrete strain gauge;
one end of the fixed support is detachably fixed with the mounting screw, and the other end of the fixed support extends towards a preset strain measurement point inside the concrete structure;
the two connecting claws are arranged on the fixed support at intervals, and the connecting claws are vertically fixed with the fixed support; the concrete strain gauge is arranged between the two connecting claws, one end of the concrete strain gauge is fixedly connected with one of the connecting claws, and the other end of the concrete strain gauge is fixedly connected with the other connecting claw.
Furthermore, the fixed end of the fixed support is provided with an external thread, and the mounting screw is provided with an internal thread; wherein, the external thread is connected with the internal thread in a matching way.
Furthermore, the connecting claw is a solid steel bar; and the concrete strain gauge is fixedly connected with the solid steel bar by a plastic binding belt.
Further, the linear distance between the two connecting claws is 80mm.
Furthermore, a top mounting opening is formed in the top end of the spherical mounting seat, and a bottom mounting opening is formed in the bottom end of the spherical mounting seat; the bottom end of the upper mounting rod is detachably fixed in the top mounting opening, and the top end of the lower mounting rod is detachably fixed in the bottom mounting opening.
Furthermore, the upper mounting rod is fixedly connected with the top mounting port through threads, and the lower mounting rod is fixedly connected with the bottom mounting port through threads.
Furthermore, the upper mounting rod and the lower mounting rod are both made of connecting steel pipes; the connecting steel pipe comprises a plurality of steel pipe sections which are sequentially connected, and adjacent steel pipe sections are connected through threads.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a concrete strain monitoring device, which ensures that a spherical mounting seat can be fixed in a concrete structure by arranging an upper mounting rod and a lower mounting rod at the top bottom end of the spherical mounting seat respectively; the surface of the spherical mounting seat is provided with a plurality of mounting screw ports, the strain monitoring unit is mounted in the mounting screw ports, and the strain monitoring unit extends towards a preset strain measurement point inside the concrete structure, so that the strain data measurement requirement on any measurement point inside the concrete structure is met; simple structure, simple to operate, the installation effectiveness is higher.
Furthermore, two connecting claws are arranged on the fixing support, the concrete strain gauge is fixed between the two connecting claws, and the concrete strain gauge is accurately fixed.
Furthermore, the fixed support and the spherical mounting seat are connected in a threaded fit mode, and therefore the mounting efficiency of the strain monitoring unit is effectively improved.
Furthermore, the upper mounting rod and the lower mounting rod are both made of connecting steel pipes, and strain data measurement requirements of any height inside the concrete structure are met by splicing different numbers of steel pipe sections.
Drawings
Fig. 1 is the overall structure schematic diagram of the concrete strain monitoring device of the utility model.
Wherein, 1, the upper part is provided with a rod, 2, the spherical mounting seat is provided with a rod, 3, the lower part is provided with a strain monitoring unit, and 4; 21 installing a screw; 41 fixing bracket, 42 connecting claw and 43 concrete strain gauge.
Detailed Description
In order to make the technical problem solved by the present invention, technical solution and beneficial effect are more clearly understood, and the following specific embodiments are right for the present invention to proceed further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the utility model provides a concrete strain monitoring device, which is used for collecting strain data in a concrete structure; the concrete strain monitoring device comprises an upper mounting rod 1, a spherical mounting seat 2, a lower mounting rod 3 and a plurality of strain monitoring units 4.
The upper mounting rod 1 is vertically fixed at the top end of the spherical mounting seat 2, and the lower mounting rod 3 is vertically fixed at the bottom end of the spherical mounting seat 2; the top end of the spherical mounting seat 2 is provided with a top mounting opening, and the bottom end of the spherical mounting seat 2 is provided with a bottom mounting opening; the bottom end of the upper mounting rod 1 is detachably fixed in the top mounting opening, and the top end of the lower mounting rod 3 is detachably fixed in the bottom mounting opening; the top end of the upper mounting rod 1 extends to the interior of a concrete structure, and the bottom end of the upper mounting rod 1 is inserted into the top mounting opening and fixedly connected through threads; the bottom end of the lower mounting rod 3 extends to the interior of the concrete structure, and the top end of the lower mounting rod 3 is inserted into the bottom mounting opening and fixedly connected through threads.
In the utility model, the upper mounting rod 1 and the lower mounting rod 3 are both made of connecting steel pipes; the connecting steel pipe comprises a plurality of steel pipe sections which are connected in sequence, and adjacent steel pipe sections are connected by threads; wherein, the coaxial lines of all the steel pipe sections are connected in turn.
The spherical mounting seat 2 is of a spherical solid structure, a plurality of mounting screw ports 21 are formed in the surface of the spherical mounting seat 2, and each mounting screw port 21 is provided with one strain monitoring unit 4; one end of the strain monitoring unit 4 is detachably fixed with the installation screw 21, and the other end of the strain monitoring unit 4 extends towards a preset strain measurement point inside the concrete structure; and the strain monitoring unit 4 is used for acquiring strain data of a preset strain measurement point in the concrete structure.
In the present invention, the strain monitoring unit 4 includes a fixing bracket 41, two connecting claws 42 and a concrete strain gauge 43; one end of the fixed support 41 is detachably fixed with the installation screw 21, and the other end of the fixed support 41 extends towards a preset strain measurement point inside the concrete structure; wherein, the fixed end of the fixed bracket 41 is provided with an external thread, and the mounting screw 21 is provided with an internal thread; wherein the external thread is matched and connected with the internal thread so as to fixedly install the fixing bracket 41 in the installation screw port 21.
Two connecting claws 42 are arranged on the fixed bracket 41 at intervals, and the connecting claws 42 are vertically fixed with the fixed bracket 41; wherein, the two connecting claws 42 are positioned in the same plane and are positioned in the same plane with the preset strain measurement point inside the concrete structure; the concrete strain gauge 43 is arranged between the two connecting claws 42; one end of the concrete strain gauge 43 is fixedly connected with one of the connecting claws, and the other end of the concrete strain gauge 43 is fixedly connected with the other connecting claw; the connecting claw is a solid steel bar, and the linear distance between the two solid steel bars is 80mm; and the concrete strain gauge and the solid steel bar are bound and fixed by a plastic binding belt.
The installation method comprises the following steps:
when the concrete strain monitoring device is used, the upper mounting rod is fixedly mounted at the top end of the spherical mounting seat, and the lower mounting rod is mounted at the bottom end of the spherical mounting seat, so that a strain monitoring fixing support is formed; fixing the strain monitoring fixing support at a preset position in the concrete structure, and fixing an upper mounting rod and a lower mounting rod respectively; fixing the connecting claw on the fixed support in a welding manner, and selectively fixing the fixed support with the connecting claw in one of the mounting screw ports so as to enable the extending end of the fixed support to face the direction of a preset strain measurement point in the concrete structure; then, binding and fixing the concrete strain gauge between the two connecting claws; the number and the installation position of the strain monitoring units are matched with the number and the direction of the strain measurement measuring points preset in the concrete structure; and after the concrete strain monitoring device is installed, performing concrete pouring construction.
The concrete strain monitoring device of the utility model can realize the strain data measurement at any preset measuring point inside the concrete structure by arranging a plurality of mounting screw sockets on the surface of the spherical mounting seat and mounting the strain monitoring unit in the mounting screw sockets; specifically, an upper mounting rod and a lower mounting rod are respectively arranged at the top end and the bottom end of a spherical mounting seat, and a plurality of mounting screw sockets are arranged on the surface of the spherical mounting seat; mounting a fixed support in the mounting screw to realize connection with a fixed support of the strain gauge with any angle; two connecting claws are arranged on a fixed support, and a concrete strain gauge is fixed in the two connecting claws, so that strain measurement of multiple directions and angles in a concrete structure is realized, and more accurate strain data is provided for field construction; the upper mounting rod and the lower mounting rod are both made of connecting steel pipes, so that the height of the upper mounting rod or the lower mounting rod can be adjusted, the fixed height of the spherical mounting seat can be adjusted, and the device can be conveniently installed and fixed in a concrete structure.
In the utility model, the end of the steel pipe section is processed by the screw mouth, so that the extension processing of the connecting steel pipes with different lengths is realized; carry out the silk mouthful through the installation screw socket department to spherical mount pad and handle and form the internal thread, handle through the tip to the fixed bolster and form the external screw thread through carrying out the silk mouth, link to each other the external screw thread of fixed bolster and the internal thread fit of installation screw socket, realize fixing the fixed bolster with dismantling of spherical mount pad.
The utility model discloses in, when needs are met an emergency at the inside survey of concrete, can meet an emergency the measurement station at will and arrange, also can realize the strain measurement of a plurality of directions in same measurement station department, including each angle direction in horizontal direction, vertical direction and space. The components are connected through threads, so that the connection is very firm, the influence of construction load during concrete pouring on the strainometer fixing frame is small, and the measurement precision of the strainometer fixing frame can be obviously improved; wherein, a plurality of installation screw ports are arranged on the spherical installation seat, and the directions of the installation screw ports are different; a plurality of bolt screw ports in different directions are arranged on the spherical bolt node, and multi-angle strain measurement can be realized.
The above embodiment is only one of the embodiments that can realize the technical solution of the present invention, and the scope of the present invention is not limited only by the embodiment, but also includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention.
Claims (8)
1. A concrete strain monitoring device is characterized by comprising an upper mounting rod (1), a spherical mounting seat (2), a lower mounting rod (3) and a plurality of strain monitoring units (4);
the upper mounting rod (1) is vertically fixed at the top end of the spherical mounting seat (2), and the lower mounting rod (3) is vertically fixed at the bottom end of the spherical mounting seat (2); the spherical mounting seat (2) is of a spherical solid structure, and a plurality of mounting screw ports (21) are formed in the surface of the spherical mounting seat (2); each mounting screw (21) is internally provided with a strain monitoring unit (4);
one end of the strain monitoring unit (4) is detachably fixed with the mounting screw (21), and the other end of the strain monitoring unit (4) extends towards a preset strain measurement point inside the concrete structure; and the strain monitoring unit (4) is used for acquiring strain data of a preset strain measurement point in the concrete structure.
2. A concrete strain monitoring device according to claim 1, characterized in that the strain monitoring unit (4) comprises a fixed bracket (41), two connecting claws (42) and a concrete strain gauge (43);
one end of the fixed support (41) is detachably fixed with the installation screw (21), and the other end of the fixed support (41) extends towards a preset strain measurement point inside the concrete structure;
two connecting claws (42) are arranged on the fixed bracket (41) at intervals, and the connecting claws (42) are vertically fixed with the fixed bracket (41); the concrete strain gauge (43) is arranged between the two connecting claws (42), one end of the concrete strain gauge (43) is fixedly connected with one of the connecting claws, and the other end of the concrete strain gauge (43) is fixedly connected with the other connecting claw.
3. A concrete strain monitoring device according to claim 2, characterized in that the fixed end of the fixed bracket (41) is provided with an external thread, and the mounting screw (21) is provided with an internal thread; wherein the external thread is matched and connected with the internal thread.
4. A concrete strain monitoring device according to claim 2, wherein the connecting claw (42) is a solid steel bar; and the concrete strain gauge is fixedly connected with the solid steel bar by a plastic binding belt.
5. A concrete strain monitoring device according to claim 2, characterised in that the linear spacing between the two coupling claws (42) is 80mm.
6. The concrete strain monitoring device according to claim 1, wherein a top mounting opening is formed in the top end of the spherical mounting seat (2), and a bottom mounting opening is formed in the bottom end of the spherical mounting seat (2); the bottom end of the upper mounting rod (1) is detachably fixed in the top mounting opening, and the top end of the lower mounting rod (3) is detachably fixed in the bottom mounting opening.
7. The concrete strain monitoring device according to claim 6, wherein the upper mounting rod (1) is fixedly connected with the top mounting opening through threads, and the lower mounting rod (3) is fixedly connected with the bottom mounting opening through threads.
8. The concrete strain monitoring device according to claim 1, wherein the upper mounting rod (1) and the lower mounting rod (3) are both made of connecting steel pipes; the connecting steel pipe comprises a plurality of steel pipe sections which are sequentially connected, and adjacent steel pipe sections are connected through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222212626.1U CN218211702U (en) | 2022-08-22 | 2022-08-22 | Concrete strain monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222212626.1U CN218211702U (en) | 2022-08-22 | 2022-08-22 | Concrete strain monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218211702U true CN218211702U (en) | 2023-01-03 |
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ID=84658289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222212626.1U Active CN218211702U (en) | 2022-08-22 | 2022-08-22 | Concrete strain monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218211702U (en) |
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2022
- 2022-08-22 CN CN202222212626.1U patent/CN218211702U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230731 Address after: 710000, Room 2803, 28th Floor, Tai'er Discovery New Coordinates, Fangwei Road, Baqiao District, Xi'an City, Shaanxi Province Patentee after: China Railway Construction Group Xi'an Engineering Co.,Ltd. Patentee after: Northwest Branch of China Railway Construction Group Co.,Ltd. Address before: 710075 Floor 5, Building C, Zhicheng Business, No. 17, Gaoxin Fourth Road, High tech Zone, Xi'an, Shaanxi Patentee before: Northwest Branch of China Railway Construction Group Co.,Ltd. |
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| TR01 | Transfer of patent right |