CN211080238U - Concrete anti-cracking device - Google Patents
Concrete anti-cracking device Download PDFInfo
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- CN211080238U CN211080238U CN201921547288.9U CN201921547288U CN211080238U CN 211080238 U CN211080238 U CN 211080238U CN 201921547288 U CN201921547288 U CN 201921547288U CN 211080238 U CN211080238 U CN 211080238U
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Abstract
The utility model provides a concrete anti-cracking device, include: the temperature measuring system, the stress-strain measuring system and the heating system are embedded with a temperature measuring sensor, a stress-strain measuring sensor and a heating device before concrete pouring. The utility model discloses can utilize temperature measurement system and survey stress strain system to bulky concrete internal variation real time monitoring, ensure that its is visible, measurable, controllable because the unusual stress that difference in temperature and other reasons produced during the maintenance. The temperature measuring system and the heating system can be used for simultaneously acting on the temperature difference inside the mass concrete, so that the heating temperature dynamically changes along with the temperature difference, and the temperature stress of the mass concrete is controlled within a safe range. Based on the temperature data acquired by the temperature acquisition instrument, the internal temperature difference of the concrete can be effectively regulated and controlled in real time, and the self temperature stress of the concrete is reduced; and the stress change in the concrete can be monitored in real time based on the stress data acquired by the stress acquisition instrument, so that the early warning of crack generation is realized.
Description
Technical Field
The utility model relates to a concrete anti-cracking device.
Background
The modern buildings often involve mass concrete construction, such as high-rise building foundations, large equipment foundations, water conservancy dams and the like. It features large volume, small surface coefficient, concentrated heat release of cement hydration, quick internal temp. rise, etc. When the temperature difference between the inside and the outside of the concrete is large, the concrete can generate temperature cracks, and the structural safety and the normal use are influenced. The traditional method for controlling the large-volume concrete cracks comprises the steps of reducing the hydration heat of the concrete, measuring the temperature at fixed points, paving heat-insulating materials and the like, and has the defects of poor quality control capability, insufficient capability of comprehensively controlling the temperature difference of the concrete, incapability of predicting the occurrence of the cracks in advance and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concrete anti-cracking device.
In order to solve the above problem, the utility model provides a concrete anti-cracking device, include:
the temperature measurement system comprises a plurality of temperature measurement sensors arranged in concrete and a temperature acquisition instrument connected with each temperature measurement sensor;
the stress-strain measuring system comprises a plurality of stress-strain measuring sensors arranged in concrete and a stress acquisition instrument connected with each stress-strain measuring sensor;
a heating system comprising a plurality of heating wires arranged in the concrete.
Further, in the concrete crack resistance device, the temperature measuring sensors are arranged near the upper surface, the lower surface or the middle part of the concrete.
Further, in the concrete crack resistance device, the stress-strain measuring sensors are arranged near the upper surface, the lower surface or the middle part of the concrete.
Further, in the concrete crack prevention device, the heating wires are arranged near the upper and lower surfaces of the concrete.
Compared with the prior art, the utility model discloses a: the temperature measurement system comprises a plurality of temperature measurement sensors arranged in concrete and a temperature acquisition instrument connected with each temperature measurement sensor; the stress-strain measuring system comprises a plurality of stress-strain measuring sensors arranged in concrete and a stress acquisition instrument connected with each stress-strain measuring sensor; a heating system comprising a plurality of heating wires arranged in the concrete. The temperature measuring and stress and strain measuring sensors and the heating device are pre-embedded before concrete pouring. The utility model discloses can utilize temperature measurement system and survey stress strain system to bulky concrete internal variation real time monitoring, ensure that its is visible, measurable, controllable because the unusual stress that difference in temperature and other reasons produced during the maintenance. The temperature measuring system and the heating system can be used for simultaneously acting on the temperature difference inside the mass concrete, so that the heating temperature dynamically changes along with the temperature difference, and the temperature stress of the mass concrete is controlled within a safe range. Based on the temperature data acquired by the temperature acquisition instrument, the internal temperature difference of the concrete can be effectively regulated and controlled in real time, and the self temperature stress of the concrete is reduced; and the stress change in the concrete can be monitored in real time based on the stress data acquired by the stress acquisition instrument, so that the early warning of crack generation is realized.
Drawings
Fig. 1 is a schematic view of a concrete crack resistance device according to an embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model provides a concrete anti-cracking device, include:
the temperature measurement system comprises a plurality of temperature measurement sensors arranged in concrete and a temperature acquisition instrument connected with each temperature measurement sensor;
the stress-strain measuring system comprises a plurality of stress-strain measuring sensors arranged in concrete and a stress acquisition instrument connected with each stress-strain measuring sensor;
a heating system comprising a plurality of heating wires arranged in the concrete.
The temperature and stress strain measuring sensors and the heating device are embedded before concrete pouring.
The utility model discloses can utilize temperature measurement system and survey stress strain system to bulky concrete internal variation real time monitoring, ensure that its is visible, measurable, controllable because the unusual stress that difference in temperature and other reasons produced during the maintenance. The temperature measuring system and the heating system can be used for simultaneously acting on the temperature difference inside the mass concrete, so that the heating temperature dynamically changes along with the temperature difference, and the temperature stress of the mass concrete is controlled within a safe range. Based on the temperature data acquired by the temperature acquisition instrument, the internal temperature difference of the concrete can be effectively regulated and controlled in real time, and the self temperature stress of the concrete is reduced; and the stress change in the concrete can be monitored in real time based on the stress data acquired by the stress acquisition instrument, so that the early warning of crack generation is realized.
In an embodiment of the concrete crack resistance device of the present invention, the temperature measuring sensor is disposed on the near upper and lower surfaces or the middle portion of the concrete.
The utility model discloses an in the anti device that splits of concrete, survey stress strain sensor and arrange near upper and lower surface or the middle part at the concrete.
In an embodiment of the concrete crack resistance device of the present invention, the heating wires are disposed on the upper and lower surfaces of the concrete.
The heating device, the temperature measuring sensor and the stress-strain measuring sensor can be arranged on the upper surface and the lower surface of the concrete or in a region with fast heat dissipation, and the temperature measuring system and the stress-strain measuring system can be arranged in the middle of the concrete or in a region with large hydration heat.
As shown in fig. 1, the concrete crack resistance method of the present invention includes:
step S1, arranging a plurality of temperature measuring sensors and a temperature acquisition instrument connected with each temperature measuring sensor in the concrete to form a temperature measuring system;
step S2, arranging a plurality of stress-strain measuring sensors and a stress collector connected with each stress-strain measuring sensor in the concrete to form a stress-strain measuring system;
step S3, arranging a plurality of heating wires in the concrete to form a heating system;
and step S4, acquiring the temperature in the concrete through a temperature measuring system, heating the concrete through a heating system, and acquiring the stress in the concrete through a stress and strain measuring system.
The temperature and stress strain measuring sensors and the heating device are embedded before concrete pouring.
The utility model discloses can utilize temperature measurement system and survey stress strain system to bulky concrete internal variation real time monitoring, ensure that its is visible, measurable, controllable because the unusual stress that difference in temperature and other reasons produced during the maintenance. The temperature measuring system and the heating system can be used for simultaneously acting on the temperature difference inside the mass concrete, so that the heating temperature dynamically changes along with the temperature difference, and the temperature stress of the mass concrete is controlled within a safe range. Based on the temperature data acquired by the temperature acquisition instrument, the internal temperature difference of the concrete can be effectively regulated and controlled in real time, and the self temperature stress of the concrete is reduced; and the stress change in the concrete can be monitored in real time based on the stress data acquired by the stress acquisition instrument, so that the early warning of crack generation is realized.
The utility model discloses an in the anti method embodiment of splitting of concrete, arrange a plurality of temperature sensor in the concrete, will temperature sensor arranges near upper and lower surface or the middle part at the concrete.
The utility model discloses an in the anti method embodiment of splitting of concrete, arrange a plurality of survey stress strain sensor in the concrete, will survey stress strain sensor and arrange near upper and lower surface or the middle part at the concrete.
In one embodiment of the concrete crack resistance method of the present invention, a plurality of heating wires are disposed in the concrete, and the heating wires are disposed on the upper and lower surfaces of the concrete.
The heating device, the temperature measuring sensor and the stress-strain measuring sensor can be arranged on the upper surface and the lower surface of the concrete or in a region with fast heat dissipation, and the temperature measuring system and the stress-strain measuring system can be arranged in the middle of the concrete or in a region with large hydration heat.
The utility model discloses an in the anti method embodiment of splitting of concrete, in step S4, through the temperature in the temperature measurement system collection concrete, it is right through heating system the concrete heats, include:
connecting an intelligent integrated control system with the temperature measuring system, the stress-strain measuring system and the heating system respectively;
the intelligent integrated control system collects the temperatures of the upper surface, the lower surface and the middle position of the concrete sequentially through the temperature collector and the temperature measuring sensor;
when the temperature difference between the upper surface and the middle part of the concrete exceeds a preset threshold value, the intelligent integrated control system controls the heating wires to heat the temperature difference area of the concrete, meanwhile, the heating temperature is monitored by sequentially passing through the temperature acquisition instrument and the temperature measurement sensor, and the temperature difference between the upper surface and the lower surface of the concrete and the central temperature is dynamically adjusted by the heating wires to be smaller than the preset threshold value.
The measured data are processed into intelligent visual information by the intelligent integrated control system and are transmitted to a user side, and monitoring personnel can easily monitor, control and analyze the internal change of the mass concrete comprehensively.
After concrete is poured, the temperature measuring sensor collects real-time data and transmits the data signals to the temperature measuring system, and the temperature measuring system processes and converts the data signals into temperature data and then sends the temperature data to the intelligent integrated control system.
The temperature signals collected by the temperature measuring sensors arranged on the upper surface and the lower surface of the concrete and the temperature data signals in the middle of the concrete are processed and then transmitted to the intelligent integrated control system for comparison, and the intelligent integrated control system controls the heating system to heat the area with large temperature difference and monitors the heating temperature and the temperature difference in real time.
The intelligent integrated control system compares the temperature of the middle part of the concrete with the temperature of the upper surface and the temperature of the lower surface according to the temperature data, starts the heating system when the temperature difference is larger than a certain standard value, heats the upper surface and the lower surface of the concrete, simultaneously feeds back the temperature data in real time by the temperature measurement system, and dynamically controls the heating process.
The comprehensive control system can feed back temperature and stress changes in time and take corresponding measures, so that the anti-cracking effect of the large-volume concrete is effectively improved.
The utility model discloses a heating system, temperature measurement system, stress strain monitoring system and integrated control system, anti crack system based on temperature compensation is more intelligent, can effectively regulate and control the inside difference in temperature of concrete in real time, reduces concrete self temperature stress, can also the inside stress variation of real-time supervision concrete, accomplishes the early warning in advance that the crack produced. The embedded sensor is utilized to monitor and collect temperature and stress data in real time after concrete pouring, then intelligent analysis is carried out, temperature compensation is timely carried out, a region with large stress is displayed, cracks generated due to temperature stress can be effectively prevented, and construction quality and safety are improved.
The utility model discloses an in the anti method embodiment of splitting of concrete, in step S4, through measuring the stress in the stress strain system collection concrete, include:
the intelligent integrated control system collects the stress inside the concrete sequentially through the stress collector and the stress-strain measuring sensor, and sends out corresponding alarm when the stress of a certain area inside the concrete is larger than a set value.
During the curing period after concrete pouring, the stress measuring sensor collects the data signals of the stress change inside the concrete in real time and transmits the data signals to the stress-strain monitoring system, and the stress-strain monitoring system processes the data signals and converts the data signals into stress-strain data and then sends the stress-strain data to the intelligent integrated control system.
And processing data signals collected by a stress-strain measuring sensor arranged in the concrete and then sending the processed data signals to a comprehensive control system, and timely notifying monitoring personnel when the stress strain changes abnormally.
The comprehensive control system monitors and records the change of stress-strain data in real time, and when the stress-strain value is larger than a certain standard value, an early warning response is started to remind operators on duty that the stress-strain value of a corresponding area is abnormal, and effective measures are taken as soon as possible.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made to the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A concrete crack resistance device, comprising:
the temperature measurement system comprises a plurality of temperature measurement sensors arranged in concrete and a temperature acquisition instrument connected with each temperature measurement sensor;
the stress-strain measuring system comprises a plurality of stress-strain measuring sensors arranged in concrete and a stress acquisition instrument connected with each stress-strain measuring sensor;
a heating system comprising a plurality of heating wires arranged in the concrete.
2. The concrete crack-resistant device according to claim 1, wherein the temperature sensor is disposed near upper, lower or middle portions of the concrete.
3. The concrete crack resistant device of claim 1, wherein the stress strain sensor is disposed near the upper, lower or middle surface of the concrete.
4. The concrete crack prevention device of claim 1, wherein the heating wires are disposed near upper and lower surfaces of the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921547288.9U CN211080238U (en) | 2019-09-18 | 2019-09-18 | Concrete anti-cracking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921547288.9U CN211080238U (en) | 2019-09-18 | 2019-09-18 | Concrete anti-cracking device |
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| CN211080238U true CN211080238U (en) | 2020-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593262A (en) * | 2019-09-18 | 2019-12-20 | 上海建工二建集团有限公司 | Concrete crack resistance device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593262A (en) * | 2019-09-18 | 2019-12-20 | 上海建工二建集团有限公司 | Concrete crack resistance device and method |
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