CN111751521B - Matrix structure for measuring temperature and humidity inside concrete and arrangement method thereof - Google Patents
Matrix structure for measuring temperature and humidity inside concrete and arrangement method thereof Download PDFInfo
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- 239000010959 steel Substances 0.000 claims description 30
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- 238000012360 testing method Methods 0.000 claims description 8
- 238000004080 punching Methods 0.000 claims description 5
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- 238000010276 construction Methods 0.000 abstract description 8
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
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Abstract
The invention discloses a matrix structure for measuring the temperature and humidity in concrete and an arrangement method thereof, wherein the matrix structure comprises a plurality of temperature sensors and humidity sensors which are arranged in the concrete, each temperature sensor and one humidity sensor are bound together to form a sensor group, and the sensor groups on the same horizontal plane and the same vertical plane are distributed in a matrix manner; in addition, the invention also discloses a corresponding arrangement method; the concrete crack monitoring and monitoring system can monitor and collect the temperature and humidity data of multiple points in the concrete in real time, and the measuring structure can be quickly and conveniently arranged by combining with the concrete pouring construction process, so that data support is provided for researching the coupling principle of the temperature and the humidity in the concrete, and the concrete crack monitoring and monitoring system plays a positive guiding significance for preventing and treating concrete cracks.
Description
Technical Field
The invention relates to the technical field of concrete construction of hydraulic engineering, in particular to a matrix structure for measuring the temperature and humidity in concrete and an arrangement method thereof.
Background
The concrete material is an indispensable building material for water conservancy and hydropower engineering due to good mechanical property and durability. However, due to the severe working environment, the complex load combination and the material characteristics of the concrete, various types of damage and damage can occur from the pouring to affect the service safety performance of the dam.
Although hydraulic engineers and researchers have long been paying attention to the problem of hydraulic concrete cracking and have done a lot of work and achieved a lot of achievements, until now, concrete structures at home and abroad almost have cracks, and although the number and the harm degree of the cracks are different, the fact that 'no dam and no crack' is not contended is achieved. Engineering practice shows that concrete structure cracking is mostly caused by non-load factors, namely volume expansion or contraction of concrete caused by temperature and moisture change in a structure, and tensile stress in the structure reaches a certain stress level under a constraint condition.
Structural cracks caused by changes in temperature and humidity are receiving much attention, so the temperature-humidity coupling effect in concrete is an important research topic in civil engineering and hydraulic structure engineering. The concrete structure generates internal and external temperature difference due to cement hydration to cause temperature deformation, and the temperature change causes humidity difference due to evaporation or migration of water in the concrete or on the surface of the concrete, thereby causing humidity deformation. When the temperature and humidity stress caused by the temperature and humidity change is restrained by the outside, the damage and even the cracking are generated. Therefore, the deformation of the concrete material is closely related to temperature change and moisture loss, and the cracking deformation of the concrete material is not caused by a single factor but is determined by temperature and humidity changes and the coupling deformation of the temperature and humidity changes, so that the durability and the service life of the concrete are influenced.
To develop research on the action process and damage mechanism of concrete due to temperature-humidity coupling effect and search for a proper technology for solving the problem, a device capable of measuring the temperature and humidity inside the concrete and a matched arrangement method are firstly needed to help accurately and effectively obtain temperature and humidity data of different parts inside a concrete structure, and then the data are analyzed and explored to understand the coupling principle of the temperature and the humidity in the concrete.
At present, more devices can be used for measuring the internal temperature of concrete, the technology is relatively mature, but equipment for accurately measuring the internal humidity of the concrete is less, the reliability is lower, the technology for simultaneously monitoring the temperature and humidity data of multiple points in the concrete in real time is more fresh, and the sensors are influenced by processes of feeding, vibrating, maintaining and the like during concrete pouring construction, small instruments and components of the sensors are particularly easy to damage, and the damaged parts cannot be maintained and replaced once the concrete is poured, so that the safety monitoring, scientific research experiments and long-term operation of a concrete structure of hydraulic engineering are influenced, even the damaged parts are influenced, an effective measuring structure and an effective arrangement method are required to be designed for monitoring and collecting the internal data of the concrete, and the internal temperature and humidity distribution rule of the concrete is researched, and the method is necessary to research the stress evolution characteristic in the concrete under the temperature-humidity coupling effect based on the test result and the numerical analysis, is substantially helpful to reduce the cracking probability of dam concrete and reveal the condition of concrete cracking, and has great theoretical and engineering significance.
Disclosure of Invention
The invention aims to overcome the defects and provides a matrix structure for measuring the temperature and humidity in the concrete and an arrangement method thereof, which can monitor and collect the temperature and humidity data of multiple points in the concrete in real time, can be quickly and conveniently arranged by combining with a concrete pouring construction process, provides data support for researching the coupling principle of the temperature and the humidity in the concrete, and plays a positive guiding significance for preventing and controlling concrete cracks.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a matrix structure of inside humiture of measurement concrete, is including setting up in inside a plurality of temperature sensor and the humidity transducer of concrete, and every temperature sensor and a humidity transducer are tied up and are formed a sensor group together, and the sensor group at same horizontal plane place and the sensor group at same vertical face place all are the matrix distribution.
Preferably, the plurality of sensor groups are distributed in a three-dimensional net shape in the concrete.
Preferably, the spacing between each layer of sensor groups is in the range of 0.1-1m, and the outermost sensor groups are 0.03-1m from the concrete surface.
Preferably, the temperature sensor and the humidity sensor are bound together by a binding band.
Preferably, the temperature sensor and the humidity sensor are connected with a paperless recorder arranged outside the concrete by data lines.
In addition, the invention also discloses an arrangement method of the matrix structure, which comprises the following steps:
step 1): punching holes at corresponding positions on two sides of the concrete mould according to the distribution positions of the same vertical surface sensor group in the matrix structure; punching at the corresponding position of the limiting protection chute according to the distribution position of the same vertical sensor group in the matrix structure;
step 2): installing a stressed frame on the top of the concrete mold; then inserting each limit protection sliding chute into the concrete mould according to the vertical column distribution positions of different sensor groups, and fixing the top of each limit protection sliding chute with the stressed frame;
step 3): sequentially penetrating a limiting steel wire through the side part of the concrete mould, the limiting protection chute and the other side part of the concrete mould from the drilled hole, and straightening, tightening and fixing the limiting steel wire;
step 4): putting each sensor group into the inner side of each limiting protection sliding groove, adopting an elastic limiting piece to transversely position the sensor group, and enabling the bottom of the sensor group to be in contact with a limiting steel wire;
step 5): positioning and marking a sensor group in a matrix structure, leading out a data wire of the sensor group to the outer side of a concrete mold, and connecting the sensor group with a paperless recorder and a computer for testing;
step 6): and after the installation is finished, concrete pouring is carried out, and after the surface concrete is vibrated, the limiting steel wire, the limiting protection chute and the stressed frame are timely dismantled.
Further, in the step 6), the concrete dismantling steps of the limiting steel wire, the limiting protection chute and the stressed frame are as follows:
step 6.1): firstly, shearing limiting steel wires which penetrate through a concrete mould and are fixed on two sides, and then drawing and taking out the limiting steel wires;
step 6.2): and the connection between the stressed frame and the top of the concrete mold is released, and the stressed frame is pushed upwards or pulled to move upwards, so that the limiting protection sliding groove moves upwards together, and finally the limiting protection sliding groove is taken out of the concrete.
Furthermore, in the step 6.2), when the vibration motor on the stressed frame works, the stressed frame and the limiting protection chute connected with the stressed frame vibrate to accelerate the upward moving process of the limiting protection chute.
Furthermore, the elastic limiting part is a rubber band, the diameter of the limiting steel wire is 0.5-2mm, the limiting protection chute is of a cambered surface cylinder structure, and the cross section of the limiting protection chute is in the shape of a semicircular ring or a partial circular ring.
Further, the stress frame comprises transverse connecting rods connected with the upper portion of the limiting protection chute, the transverse connecting rods are connected through longitudinal connecting rods, and the longitudinal connecting rods are connected with the telescopic mechanism or the hoisting mechanism.
The invention has the beneficial effects that:
1. according to the invention, through the matrix structure embedded in the concrete, the temperature and humidity data of different parts in the concrete can be monitored in real time, and the limitation of single-point measurement in the prior art is changed; due to the fact that the matrix type layout is adopted, distances between layers and distances between the layers and the surface of concrete are different, multiple groups of temperature and humidity data can be obtained at one time through the structure, and a foundation is provided for research of distribution rules of temperature and humidity inside the concrete; and the humiture data obtained by adopting the matrix structure can visually reflect the humiture field inside the concrete, provide data support for exploring the coupling principle of temperature and humidity in the concrete, and play a positive guiding significance for preventing and controlling concrete cracks.
2. The mode of combining the temperature sensor and the humidity sensor is adopted, and after the temperature sensor and the humidity sensor are bound together during arrangement, the centers of the two sensors are on the same horizontal plane, so that the temperature and humidity data of the same point can be accurately and simultaneously obtained, and the method has important significance for the temperature and humidity coupling research of concrete.
3. Aiming at the matrix structure, the invention designs the arrangement method and the process, solves the problem that the prior art is easy to be interfered by concrete pouring construction, and the matrix structure can be quickly and conveniently arranged by combining with the concrete pouring construction process; through tests of the components and the arrangement method adopted by the invention, the sensor group is accurately positioned, deviation caused by the influences of concrete construction such as vibration, pouring and the like can be avoided, the protection measures are better, and the damage rate is low.
4. The selected limiting protection sliding groove is of a semi-open structure, so that the sensor can be limited in the limiting protection sliding groove, the influence of concrete pouring construction on the sensor is reduced, the concrete material can be fully contacted and wrapped with the sensor when normal feeding and vibrating work is carried out, the sensor can be easily taken out only by adopting a vibration and drawing mode after pouring is finished, and the sensor group can be left in concrete completely according to a design scheme after the concrete is solidified to complete corresponding test and monitoring tasks.
Drawings
FIG. 1 is a schematic structural diagram of a matrix structure for measuring the temperature and humidity inside concrete;
FIG. 2 is an enlarged schematic view of the sensor group of FIG. 1;
FIG. 3 is a schematic view of the vertical cross-section of FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 1 in a horizontal section;
FIG. 5 is a schematic diagram of an arrangement structure of a matrix structure for measuring the temperature and humidity inside concrete before the concrete is poured;
FIG. 6 is a schematic structural view of the limiting protection chute of FIG. 5;
FIG. 7 is a schematic sectional view A-A of FIG. 5 after completion of concrete placement;
FIG. 8 is an enlarged view of the encircled area in FIG. 7
FIG. 9 is a schematic structural view of the stressed frame moving upwards through the telescopic mechanism after concrete pouring is completed;
FIG. 10 is a schematic structural view of the stressed frame moving upwards through the hoisting mechanism after concrete pouring is completed;
FIG. 11 is a graph of temperature data shown for a paperless recorder in this example;
fig. 12 is a graph of humidity data shown for the paperless recorder of this example.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 1 to 4, a matrix structure for measuring the temperature and humidity inside concrete, including setting up in a plurality of temperature sensor 2 and humidity transducer 3 inside concrete 1, every temperature sensor 2 and a humidity transducer 3 are tied up together and form a sensor group 4, and the sensor group 4 that same horizontal plane place and the sensor group 4 that same vertical plane place all are matrix distribution. The temperature sensor 2 in this embodiment may adopt a PT100 thermal resistor temperature sensor, and the humidity sensor 3 may adopt an HM 1500 LF humidity sensor as a basis, and is externally designed with a protective sleeve for protection.
Preferably, a plurality of sensor groups 4 are distributed in a three-dimensional net shape inside the concrete 1. As shown in fig. 1, the dotted line is a three-dimensional net-shaped distribution schematic line, and the sensor groups 4 on the same horizontal plane and the sensor groups 4 on the same vertical plane are both distributed in a matrix.
Preferably, the spacing between each layer of sensor groups 4 is in the range of 0.1-1m, and the outermost layer of sensor groups 4 is 0.03-1m from the surface of the concrete 1.
Preferably, the temperature sensor 2 and the humidity sensor 3 are bound together by a binding band 5. In this embodiment, ribbon 5 itself is the heat conductivity poor, the size is little, to the little material of humiture interference, certainly also can select for use similar material to replace, binds together temperature sensor 2 and humidity transducer 3 back, and the center of two kinds of sensors like this is on same horizontal plane, can accurately obtain the humiture data of same point.
Preferably, the temperature sensor 2 and the humidity sensor 3 are connected with a paperless recorder arranged outside the concrete 1 by using data lines. In this embodiment, the device for reading sensor data adopts a paperless recorder, the channel of the paperless recorder can be between 1 way and 64 ways, the paperless recorder abandons a recording pen and a recording paper used in the traditional paperless recorder, the quality of the recorder is improved, the stability and the reliability of the recorder are enhanced, more importantly, the running cost of the recorder is reduced, the management is facilitated, the working efficiency is improved, the liquid crystal display is adopted, the pictures are enriched, and various pictures such as numbers, bar charts, curves and the like can be checked. The embodiment adopts an MIK-R4000D type paperless recorder, which adopts a high-speed high-performance microprocessor, is suitable for monitoring, controlling and recording humidity signals under complex field conditions, is more efficient and accurate than the conventional manual reading of data, achieves the purpose of real-time monitoring, and collects and records data; in addition, the paperless recorder can be connected with a computer to directly transmit real-time data, the data is analyzed and filed by upper computer software, and the paperless recorder can be directly connected with a micro printer to print data and curves in designated time.
In addition, the invention also discloses an arrangement method of the matrix structure, which comprises the following steps:
step 1): according to the distribution positions of the same vertical surface sensor group 4 in the matrix structure, holes are punched at the corresponding positions on the two sides of the concrete mould 6 as shown in FIGS. 5, 6 and 7; punching at the corresponding part of the limiting protection chute 7 according to the distribution position of the same vertical sensor group 4 in the matrix structure;
step 2): installing a stressed frame 8 on the top of the concrete mould 6; then inserting each limit protection chute 7 into the concrete mould 6 according to the distribution positions of the vertical columns where the different sensor groups 4 are located, and fixing the top of each limit protection chute 7 with the stressed frame 8;
step 3): sequentially penetrating a limiting steel wire 9 through the side part of the concrete mould 6, the limiting protection chute 7 and the other side part of the concrete mould 6 from the drilled hole, and straightening, tightening and fixing the limiting steel wire 9;
step 4): placing each sensor group 4 into each limiting protection chute 7, adopting an elastic limiting piece 13 to transversely position the sensor group 4 (as shown in fig. 8), and enabling the bottom of the sensor group 4 to be in contact with a limiting steel wire 9; in this embodiment, the limiting protection chute 7 is made of an iron material with a smooth inner side surface, the diameter or width of an opening part of the limiting protection chute is slightly larger than the diameter and width of the sensor group 4, the semi-opening shape can limit and protect the sensor group 4 on the inner side, and can enable concrete materials to smoothly enter and wrap the sensor group 4, and meanwhile, the inner side surface of the limiting protection chute 7 is smooth, so that the friction force between the limiting protection chute 7 and the surface of the sensor group 4 in the upward moving process is far smaller than the wrapping force of the concrete on the sensor group 4, and the sensor group 4 cannot be driven to move upwards when the limiting protection chute 7 moves upwards; in the subsequent concrete vibrating process, the concrete slurry has high fluidity, so that after the sensor group 4 is transversely positioned by the elastic limiting piece 13, the sensor group 4 can be prevented from transversely moving along with the flow of the slurry to cause position deviation, and in addition, the elastic limiting piece 13 is thin, the friction force between the elastic limiting piece 13 and the surface of the limiting protection chute 7 is far smaller than the wrapping force of the concrete on the sensor group 4 and the elastic limiting piece 13, so that when the limiting protection chute 7 moves upwards, the elastic limiting piece 13 cannot move upwards; and the bottom of the sensor group 4 is contacted with the limiting steel wire 9, so that the phenomenon that the sensor group 4 sinks in the vibrating process can be effectively prevented.
Step 5): positioning and marking the sensor group 4 in the matrix structure, leading out a data wire of the sensor group to the outer side of the concrete mould 6, and connecting the data wire with a paperless recorder and a computer for testing; in the step, the data line is led out to the outer side of the concrete mould 6 by adopting a principle of proximity and relative concentration, the sensor data transmission line is prolonged and then is connected with a paperless recorder and a computer for testing according to the position of each sensor group 4 in the concrete and the distance between each sensor group 4 and an observation room, a plurality of paperless recorders and computers can be connected by adopting 485 communication, the temperature and humidity data of dam concrete can be read in real time, the technical bottleneck of limited channels of the paperless recorders can be made up, a large amount of detected data can be displayed on the same screen, the comparison and the discovery of abnormal high humidity data are facilitated, meanwhile, the effective distance of 485 communication can reach 1200m, the data transmission is farther, the number of dam body monitoring rooms can be reduced, the centralized observation is facilitated, and the input of personnel is reduced.
Step 6): after the installation is finished, concrete pouring is carried out, and after the surface concrete is vibrated, the limiting steel wire 9, the limiting protection chute 7 and the stressed frame 8 are timely dismantled. In the concrete pouring process, the height of a feeding port of the concrete pouring device needs to be reduced to prevent the data lines and the limiting steel wires 9 in the matrix structure from being damaged when aggregate falls; and adopt the mode of layering vibration to go on, select for use suitable vibrator and strictly carry out according to the concrete technique of vibrating according to the space clearance of matrix structure, both guarantee that the concrete vibrates closely knit and wrap up the sensor group 4 in living the matrix structure completely, will reduce again and destroy spacing protection spout 7's extrusion.
Further, in the step 6), the specific dismantling steps of the limiting steel wire 9, the limiting protection chute 7 and the stressed frame 8 are as follows:
step 6.1): firstly, shearing the limiting steel wires 9 which penetrate through the concrete mould 6 and are fixed on two sides, and then drawing and taking out the limiting steel wires 9;
step 6.2): and the connection between the stress frame 8 and the top of the concrete mould 6 is released, and the stress frame 8 is pushed or pulled upwards to move upwards, so that the limiting protection sliding groove 7 moves upwards together, and finally the limiting protection sliding groove 7 is taken out of the concrete 1. In the step, the upward movement speed of the limiting protection chute 7 is carried out at a constant speed, the speed is not too high or too low, the vertical deviation of the position of the sensor group 4 can be influenced by the too high speed, the sensor group can be difficult to take out due to the solidification of concrete by the too low speed, and the lifting speed can be within 0.5m/min-2 m/min.
Furthermore, in the step 6.2), when the vibration motor 10 on the stressed frame 8 works, the stressed frame 8 and the limiting protection chute 7 connected thereto vibrate, so as to accelerate the upward moving process of the limiting protection chute 7. In this step, the vibration motor 10 can limit the position of the protection chute 7 to vibrate, so as to further reduce the friction between the position of the protection chute 7 and the concrete and the sensor group 4, the position of the protection chute 7 moves upwards while vibrating, and the vibration frequency of the vibration motor 10 is not too high and can be 25-50HZ (1500 and 3000 times/min).
Further, the elastic limiting part 13 is a rubber band, the diameter of the limiting steel wire 9 is 0.5-2mm, the limiting protection chute 7 is of a cambered surface cylinder structure, and the cross section of the limiting protection chute is in the shape of a semicircular ring or a partial circular ring. In this embodiment, the elastic limiting member 13 is made of rubber band, or other elastic rope, which may be made of elastic material; the diameter of the limiting steel wire 9 is 0.5-2mm, and the diameters of the holes drilled on the concrete mould 6 and the limiting protection chute 7 are preferably slightly larger than the diameter of the limiting steel wire 9, so that the strength of the steel wire can be ensured, the steel wire can be smoothly pulled out of concrete after pouring is finished, and the interference caused by overlarge holes on concrete pouring and the accuracy of measured data can be avoided.
Further, the stress frame 8 comprises transverse connecting rods 8.1 connected with the upper portions of the limiting protection chutes 7, the transverse connecting rods 8.1 are connected through longitudinal connecting rods 8.2, and the longitudinal connecting rods 8.2 are connected with a telescopic mechanism 11 or a hoisting mechanism 12. In this embodiment, as shown in fig. 9, the telescopic mechanism 11 may be a hydraulic cylinder, and the extension of the telescopic rod of the hydraulic cylinder can push the stressed frame 8 to move upwards; as shown in fig. 10, the hoisting means 12 may be a fixed pulley, a rope, or the like, and the force receiving frame 8 is pulled up by pulling the rope.
Finally, after the arrangement of the steps is completed, the paperless recorder reads the temperature and humidity data collected by the sensor group 4 in the concrete, and the formed partial test data curve graphs are shown in fig. 11 and 12, so that the temperature and humidity data of different parts in the concrete can be monitored in real time.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (7)
1. A matrix structure arrangement method for measuring temperature and humidity inside concrete comprises the steps that the matrix structure comprises a plurality of temperature sensors (2) and humidity sensors (3) which are arranged inside the concrete (1), each temperature sensor (2) and one humidity sensor (3) are bound together to form a sensor group (4), and the sensor groups (4) on the same horizontal plane and the sensor groups (4) on the same vertical plane are distributed in a matrix manner; the temperature sensor (2) and the humidity sensor (3) are connected with a paperless recorder arranged outside the concrete (1) by data lines; the method is characterized in that: it comprises the following steps:
step 1): punching holes at corresponding positions on two sides of a concrete mould (6) according to the distribution positions of the same vertical surface sensor group (4) in the matrix structure; punching at the corresponding part of the limiting protection chute (7) according to the distribution position of the same vertical sensor group (4) in the matrix structure;
step 2): installing the stressed frame (8) on the top of the concrete mould (6); then inserting each limiting protection sliding groove (7) into the concrete mould (6) according to the distribution positions of the vertical columns where different sensor groups (4) are located, and fixing the top of each limiting protection sliding groove (7) with the stressed frame (8);
step 3): sequentially enabling a limiting steel wire (9) to pass through the side part of the concrete mould (6), the limiting protection chute (7) and the other side part of the concrete mould (6) from the drilled hole, and straightening, tightening and fixing the limiting steel wire (9);
step 4): putting each sensor group (4) into the inner side of each limiting protection sliding groove (7), adopting an elastic limiting piece (13) to transversely position the sensor group (4), and enabling the bottom of the sensor group (4) to be in contact with a limiting steel wire (9);
step 5): the sensor group (4) in the matrix structure is positioned and identified, and a data wire of the sensor group is led out to the outer side of the concrete mould (6) and is connected with a paperless recorder and a computer for testing;
step 6): after the installation is finished, concrete pouring is carried out, and after the surface concrete is vibrated, the limiting steel wire (9), the limiting protection chute (7) and the stressed frame (8) are dismantled in time.
2. The arrangement method of the matrix structure for measuring the temperature and the humidity in the concrete according to claim 1, wherein the matrix structure comprises: the distance between each layer of sensor group (4) ranges from 0.1 m to 1m, and the distance between the outermost layer of sensor group (4) and the surface of the concrete (1) ranges from 0.03 m to 1 m.
3. The arrangement method of the matrix structure for measuring the temperature and the humidity in the concrete according to claim 1, wherein the matrix structure comprises: the temperature sensor (2) and the humidity sensor (3) are bound together through a binding belt (5).
4. The arrangement method of the matrix structure for measuring the temperature and the humidity in the concrete according to claim 1, wherein the matrix structure comprises: in the step 6), the concrete dismantling steps of the limiting steel wire (9), the limiting protection chute (7) and the stressed frame (8) are as follows:
step 6.1): firstly, shearing the limiting steel wires (9) which penetrate through the concrete mould (6) and are fixed on two sides, and then drawing and taking out the limiting steel wires (9);
step 6.2): and (3) the connection between the stress frame (8) and the top of the concrete mould (6) is released, the stress frame (8) is pushed or pulled upwards to move upwards, so that the limiting protection sliding groove (7) moves upwards together, and finally the limiting protection sliding groove (7) is taken out of the concrete (1).
5. The arrangement method of the matrix structure for measuring the temperature and the humidity in the concrete according to claim 4, wherein the matrix structure comprises: in the step 6.2), when the vibration motor (10) on the stressed frame (8) works, the stressed frame (8) and the limiting protection chute (7) connected with the stressed frame vibrate to accelerate the upward moving process of the limiting protection chute (7).
6. The arrangement method of the matrix structure for measuring the temperature and the humidity in the concrete according to claim 1, wherein the matrix structure comprises: the elastic limiting part (13) is a rubber band, the diameter of the limiting steel wire (9) is 0.5-2mm, the limiting protection chute (7) is of an arc-surface cylinder structure, and the cross section of the limiting protection chute is in the shape of a semicircular ring or a partial circular ring.
7. The arrangement method of the matrix structure for measuring the temperature and the humidity in the concrete according to claim 1, wherein the matrix structure comprises: the stress frame (8) comprises transverse connecting rods (8.1) connected with the upper parts of the limiting protection chutes (7), the transverse connecting rods (8.1) are connected through longitudinal connecting rods (8.2), and the longitudinal connecting rods (8.2) are connected with a telescopic mechanism (11) or a hoisting mechanism (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010525415.6A CN111751521B (en) | 2020-06-10 | 2020-06-10 | Matrix structure for measuring temperature and humidity inside concrete and arrangement method thereof |
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| CN202010525415.6A CN111751521B (en) | 2020-06-10 | 2020-06-10 | Matrix structure for measuring temperature and humidity inside concrete and arrangement method thereof |
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| CN111751521A CN111751521A (en) | 2020-10-09 |
| CN111751521B true CN111751521B (en) | 2022-03-25 |
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| ITBZ20040033A1 (en) * | 2004-07-09 | 2004-10-09 | Eurotherm Srl | HUMIDITY DETECTION SYSTEM. |
| CN101603937B (en) * | 2009-07-23 | 2013-05-15 | 河海大学 | Device and method for testing inside relative humidity of cement base material |
| KR101305061B1 (en) * | 2012-01-20 | 2013-09-11 | 한국건설생활환경시험연구원 | Sensor for Measuring Moisture in Concrete |
| CN103163285A (en) * | 2013-03-13 | 2013-06-19 | 哈尔滨工业大学 | Device for determining internal relative humidity and temperature of cement concrete |
| CN210513222U (en) * | 2019-09-06 | 2020-05-12 | 深圳市建工集团股份有限公司 | Temperature and humidity sensor distribution structure based on split screw |
| CN111077290A (en) * | 2019-12-04 | 2020-04-28 | 镇江科易工程检测技术有限公司 | Embedded concrete humidity testing device and application method thereof |
| CN110907488B (en) * | 2019-12-27 | 2024-05-31 | 哈尔滨工业大学 | Concrete freezing degree detection device and detection method thereof |
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