Intelligent bridge tower concrete curing device capable of being integrated on tower building machine

Abstract

The invention belongs to the technical field of bridge tower concrete curing, and particularly relates to an intelligent bridge tower concrete curing device capable of being integrated on a tower building machine. Comprising a temperature control water tank, a water supply pipeline, a sensing part, a spraying device, a monitoring system and a curtain system. The sensing component comprises a meteorological station, a temperature and humidity sensor and a distributed temperature measurement optical fiber, and the meteorological station is arranged at the top of the tower building machine; the temperature and humidity sensor is arranged on the surface of the tower bridge concrete, and the tower bridge concrete is located in the center of the interior of the tower building machine; temperature measuring optical fibers are continuously arranged in the bridge tower concrete in a layered manner, and connecting tail fibers of the temperature measuring optical fibers are connected with a distributed optical fiber temperature measuring system DTS host; according to the invention, personnel investment is reduced, precise maintenance is realized, and maintenance efficiency and quality are improved; and meanwhile, the maintenance stability is improved, scientific and refined maintenance of bridge tower concrete in the construction period is automatically completed, the current situation of manual watering maintenance at present is broken through, the maintenance efficiency and quality are improved, and important engineering application reference value and significance are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge tower concrete maintenance, and in particular relates to a bridge tower concrete intelligent maintenance device that can be integrated on a tower erection machine. Background Art

[0002] Large cable-stayed bridges and suspension bridges have become the preferred bridge types in today's bridge construction, and they have extremely high requirements for structural strength and stability. As a vital component of these bridge structures, the quality of bridge tower concrete directly affects the service life and safety of the bridge. However, bridge tower concrete is prone to temperature cracks during construction. Studies have shown that 80% of concrete cracks are caused by improper maintenance. Therefore, it is particularly important to solve the maintenance problem of bridge tower concrete. The current main maintenance method is to cover the surface of the bridge tower concrete with a layer of straw mats, sacks or other moisturizing materials, and regularly sprinkle water for maintenance. This traditional maintenance method is not only inefficient, but also relies on the subjective experience of construction workers, making it difficult to ensure the stability of maintenance quality.

[0003] Therefore, in order to reduce the risk of temperature cracks during the construction of bridge tower concrete, the present invention proposes an intelligent bridge tower concrete maintenance device that can be integrated on a tower building machine, which can reduce the input of construction site personnel, realize scientific and refined maintenance of bridge tower concrete, and improve maintenance efficiency and quality. Summary of the invention

[0004] In order to address the deficiencies in the prior art, the present invention provides an intelligent maintenance device for bridge tower concrete that can be integrated on a tower-building machine. The present invention reduces personnel input, realizes precise maintenance, and improves maintenance efficiency and quality. At the same time, it improves maintenance stability, automatically completes scientific and refined maintenance of bridge tower concrete during the construction period, breaks through the current status of relying on manual watering for maintenance, improves maintenance efficiency and quality, and has important reference value and significance for engineering applications.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] An intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine, comprising a temperature-controlled water tank, a water supply pipeline, a sensing component, a spray device, a monitoring system and a curtain system;

[0007] The sensing components include a weather station, a temperature and humidity sensor, and a distributed temperature measurement optical fiber. The weather station is arranged on the top of the tower erector; the temperature and humidity sensor is arranged on the surface of the bridge tower concrete, and the tower bridge concrete is located at the inner center of the tower erector; the temperature measurement optical fiber is arranged in layers inside the bridge tower concrete, and the connecting pigtail of the temperature measurement optical fiber is connected to the DTS host of the distributed optical fiber temperature measurement system;

[0008] The water supply pipeline connects the temperature-controlled water tank placed on the top of the tower building machine with the spray device surrounding the maintenance area and evenly distributed in the tower building machine; the outer side of the spray device is equipped with a curtain system, and the curtain system includes an automatic curtain pulling device; the curtain is pulled by the automatic curtain pulling device and runs along the guide rails laid around the tower building machine platform to form a closed environment;

[0009] The monitoring system is located on the platform inside the tower crane. The DTS host and the integrated second signal receiver placed inside the system acquire signals from external sensors and various devices in real time. The integrated wireless gateway and router transmit data through the network to achieve high-speed wireless communication between the device and the server. The monitoring system also includes a control system and a UPS uninterruptible power supply. The control system is responsible for remote control of the equipment, and the UPS uninterruptible power supply ensures that the monitoring system maintains operation during power failure.

[0010] Furthermore, the water supply pipeline is attached to the outer wall of the tower building machine, the spray device is evenly distributed on the inner wall of the tower building machine, the monitoring system is located on the platform on the side of the tower building machine, and the curtain system is arranged around the tower building machine section corresponding to the maintenance area.

[0011] Furthermore, the temperature and humidity sensors are located on the outer surface of each side of the bridge tower concrete, and are evenly arranged in six equal parts along the circumference of the bridge tower concrete surface 3m away from the top, with a collection frequency of 30 minutes / time; the collection frequency of the temperature measuring optical fiber is 30 minutes / time, and the temperature measuring optical fiber is a single continuous arrangement, and is arranged in a serpentine shape from bottom to top inside the concrete along the circumference of six equal parts, with three bends, which monitor the temperatures of the surface, middle and inner layers of the bridge tower concrete in turn; the temperature measuring optical fiber is a single continuous arrangement fixed on the steel mesh.

[0012] Furthermore, the size of the temperature-controlled water tank is 4×3×2m, and the temperature-controlled water tank includes a water storage tank, a solenoid valve and a temperature controller which are connected in sequence; two temperature-controlled water tanks are symmetrically arranged at the top of the tower crane.

[0013] Furthermore, the water supply pipeline includes a main maintenance water pipe, a support maintenance water pipe and a switching joint; the main maintenance water pipe is connected to a temperature-controlled water tank; the main maintenance water pipe is divided into n support maintenance water pipes through a switching joint along the external support of the tower erection machine to the concrete maintenance section of the bridge tower, and each support maintenance water pipe is connected to a corresponding spray device; the main maintenance water pipe and the support maintenance water pipe are both seamless steel pipe structures, and the specifications of the main maintenance water pipe are The specifications of the supporting water pipe are

[0014]

[0015] The number of branch maintenance water pipes n transferred from each main maintenance water pipe meets the following requirements:

[0016]

[0017] The cross-sectional area of ​​the bridge tower concrete is S1, with the unit of m2; the cross-sectional area of ​​the maintenance area is S2, with the unit of m2; the concrete height of the maintenance section is h, with the unit of m; the spray range of the sprayer is L, with the unit of m; the spray diffusion area of ​​the sprayer is S0, with the unit of m2 / min; the water mist coverage needs to be completed within the time period [t1, t2], with the unit of min.

[0018] Furthermore, the spray device includes a sprayer, a connecting water pipe, a voltage stabilizer and a solenoid valve connected in sequence, and a first signal receiver is installed on the sprayer; the spray device is placed on a tower-building machine platform 2m away from the concrete surface of the bridge tower; the diameter of the water mist particles sprayed by the sprayer is between 10μm and 100μm, and the spraying radius is not less than 3 meters; the control water pressure range of the voltage stabilizer is 0.1MPa~0.3MPa; the compressive strength of the connecting water pipe is not less than 0.5MPa.

[0019] Furthermore, the wireless transmission network delay of the wireless gateway and the router does not exceed 100 milliseconds.

[0020] Furthermore, the curtain system includes an upper curtain, side curtains, an automatic curtain-pulling device, a roller shutter and a guide rail; the guide rail is laid around the tower-building crane platform, and the guide rail has three layers, which are respectively located on the inner side of the top beam, the upper part of the maintenance area, and the lower part of the maintenance area; the upper curtain is connected to the roller shutter, and magnets are embedded in the side edges of the upper curtain at intervals; the two corners of the side curtain are engaged with the automatic curtain-pulling device, and the automatic curtain-pulling device is slidably connected to the corresponding guide rail; the roller shutter is installed on the inner side of the top beam of the tower-building crane and the side of the pillar; the installation accuracy of the guide rail is ±2 mm, and the bearing capacity is not less than 100kg / m.

[0021] Furthermore, the automatic curtain pulling device includes a braking module, a power module, a third signal receiver and a curtain engaging component; the braking module provides stop control during the opening and closing process of the curtain; the power module performs curtain pulling control; the response time of the third signal receiver does not exceed 100 milliseconds; the curtain engaging component is connected to the curtain so that the curtain does not fall off or shift during the movement.

[0022] A method for intelligent maintenance of bridge tower concrete using the above device, the method comprising the following steps:

[0023] Step 1: Start the temperature measurement optical fiber, weather station and temperature and humidity sensor, with a collection frequency of 30 minutes per time;

[0024] Step 2: After obtaining multi-source data, the intelligent maintenance platform controls the temperature control water tank based on the measured data through the Internet of Things and remote control technology to adjust the temperature of the maintenance water;

[0025] Step 3: After the water temperature is adjusted, start the automatic curtain-pulling device to unfold the curtain along the preset guide rail. After the automatic curtain-pulling device reaches the end point, it brakes and fits on the guide rail. The magnets at the edge of the upper curtain and the magnets on the platform are attracted to form a closed environment. Then open the solenoid valve of the temperature-controlled water tank and the solenoid valve on the spray device, transmit the curing water to the voltage stabilizer on the spray device, and start the sprayer for curing.

[0026] Step 4: During the spray maintenance process, the system continuously monitors various data. After the data indicators return to the preset range, the solenoid valve of the temperature control water tank and the solenoid valve and sprayer on the spray device are closed, and the automatic curtain pulling device is activated to cooperate with the roller curtain machine to close the curtain;

[0027] Step 5: Continue to collect various monitoring data, repeat steps 2 to 4, and perform dynamic control and maintenance.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The intelligent maintenance device and method for bridge tower concrete provided by the present invention can be integrated on a tower-building machine. By arranging sensing components around the bridge tower concrete, multi-source data of the surrounding area, such as the temperature inside the concrete, the temperature and humidity on the surface of the concrete, the ambient humidity, radiation intensity, etc., is acquired, and corresponding maintenance strategies are generated after analysis and processing. The temperature of the maintenance water is adjusted in real time by a temperature-controlled water tank, and the water supply pipeline connects the water tank and the spray device to stably transmit the maintenance water. The maintenance of different concretes can automatically form the number of supporting maintenance water pipes transferred by each main maintenance water pipe through the concrete cross-sectional area, the cross-sectional area of ​​the maintenance area, the concrete height of the maintenance section, the spray range of the sprayer, the spray diffusion area of ​​the sprayer and the time range, thereby reducing the input of personnel, realizing accurate maintenance and improving the efficiency and quality of maintenance; at the same time, the curtain system is responsible for the opening and closing of the curtain, automatically forming a closed maintenance environment, and improving the stability of maintenance. The present invention can reduce the risk of temperature cracks in the construction process of the bridge tower concrete, reduce the input of personnel on the construction site, and automatically complete the scientific and refined maintenance of the bridge tower concrete during the construction period, breaking through the current situation of relying on manual sprinkling for maintenance, improving the maintenance efficiency and quality, and having important reference value and significance for engineering applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the sensing component of the present invention;

[0032] Figure 3 It is a three-dimensional schematic diagram of the temperature-controlled water tank of the present invention;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the water supply pipeline distribution of the present invention;

[0034] Figure 5 A three-dimensional schematic diagram of the spray device of the present invention;

[0035] Figure 6 It is a three-dimensional schematic diagram of the monitoring system of the present invention;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the curtain system of the present invention;

[0037] Figure 8 It is a schematic diagram of the three-dimensional structure of the automatic curtain-pulling device of the present invention;

[0038] Fig. 9 It is a flow chart of the maintenance method of the present invention.

[0039] The reference numerals are as follows:

[0040] 1. Temperature-controlled water tank; 2. Water supply pipeline; 3. Sensing component; 4. Spray device; 5. Monitoring system; 6. Curtain system; 1-1. Water storage tank; 1-2. Solenoid valve; 1-3. Temperature controller; 2-1. Main maintenance water pipe; 2-2. Adapter; 2-3. Support maintenance water pipe; 3-1. Weather station; 3-2. Temperature and humidity sensor; 3-3. Temperature measuring optical fiber; 4-1. Sprayer; 4-2. First signal receiver; 4-3. Connecting water pipe ; 4-4, voltage stabilizer; 4-5, solenoid valve; 5-1, DTS host; 5-2, second signal receiver; 5-3, control system; 5-4, wireless gateway; 5-5, router; 5-6, UPS uninterruptible power supply; 6-1, automatic curtain pulling device; 6-1-1, brake module; 6-1-2, power module; 6-1-3, third signal receiver; 6-1-4, curtain mating parts; 6-2, guide rail; 6-3, roller shutter machine. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0042] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items.

[0043] Example

[0044] like Figures 1 to 9As shown, a bridge tower concrete intelligent maintenance device that can be integrated on a tower erection machine includes a temperature control water tank 1, a water supply pipeline 2, a sensing component 3, a spray device 4, a monitoring system 5 and a curtain system 6;

[0045] The sensing component 3 includes a weather station 3-1 and a temperature and humidity sensor 3-2. The weather station 3-1 is arranged on the top of the tower building machine; the temperature and humidity sensor 3-2 is arranged on the surface of the bridge tower concrete, and the tower bridge concrete is located in the inner center of the tower building machine; the temperature measuring optical fiber 3-3 is continuously arranged in layers inside the bridge tower concrete, and the connecting pigtail of the temperature measuring optical fiber 3-3 is connected to the distributed optical fiber temperature measurement system DTS host 5-1; in this way, sufficient temperature measuring optical fiber 3-3 can be laid inside the bridge tower concrete to obtain more comprehensive temperature data inside the bridge tower concrete. The weather station 3-1 has functions such as waterproof, dustproof, and lightning protection; the temperature and humidity sensor 3-2 can withstand complex external environmental conditions. The sensing component 3 can realize real-time monitoring of the bridge tower concrete to obtain the surface temperature and humidity of the bridge tower concrete, the internal temperature of the bridge tower concrete, and meteorological information. The temperature measuring optical fiber 3-3 has a high-precision (±0.1℃) temperature measurement capability, and the temperature measurement range is -20℃ to +100℃.

[0046] The water supply pipeline 2 connects the temperature-controlled water tank 1 placed on the top of the tower building machine with the spray device 4 surrounding the maintenance area and evenly distributed in the tower building machine, and the water supply pipeline 2 realizes the transportation of maintenance water; the outer side of the spray device 4 is equipped with a curtain system 6, and the curtain system 6 includes an automatic curtain pulling device 6-1; the curtain is pulled by the automatic curtain pulling device 6-1 and runs along the guide rail 6-2 laid around the tower building machine platform to form a closed environment;

[0047] The monitoring system 5 is located on the platform inside the tower crane. The DTS host 5-1 and the integrated second signal receiver 5-2 placed inside it obtain signals from external sensors and various devices in real time; the integrated wireless gateway 5-4 and router 5-5 transmit data through the network to achieve high-speed wireless communication between the device and the server; the monitoring system 5 also includes a control system 5-3 and a UPS uninterruptible power supply 5-6. The control system 5-3 is responsible for remote control of the equipment, and the UPS uninterruptible power supply 5-6 ensures that the monitoring system 5 maintains operation under power failure. The DTS host 5-1 has powerful data processing capabilities and obtains signals in real time; the monitoring system 5 can receive, process and visualize multi-source data, and remotely control other devices.

[0048] Furthermore, the water supply pipeline 2 is attached to the outer wall of the tower building machine, the spray device 4 is evenly distributed circumferentially on the inner wall of the tower building machine, the monitoring system 5 is located on the platform on the side of the tower building machine, and the curtain system 6 is arranged around the tower building machine section corresponding to the maintenance area.

[0049] Furthermore, the temperature and humidity sensors 3-2 are located on the outer surface of each side of the bridge tower concrete, and are evenly arranged in six equal parts along the circumference of the bridge tower concrete surface 3m away from the top, with a collection frequency of 30min / time; the collection frequency of the temperature measuring optical fiber 3-3 is 30min / time, and the temperature measuring optical fiber 3-3 is a single continuous arrangement, and is arranged in a serpentine shape from bottom to top inside the concrete along the circumference of six equal parts, and is bent into three layers, which monitors the surface, middle and inner concrete temperatures of the bridge tower concrete in turn; the temperature measuring optical fiber 3-3 is a single continuous arrangement fixed on the steel mesh.

[0050] Furthermore, the size of the temperature-controlled water tank 1 is 4×3×2m, and the temperature-controlled water tank 1 includes a water storage tank 1-1, a solenoid valve 1-2 and a temperature controller 1-3 connected in sequence; two temperature-controlled water tanks 1 are symmetrically arranged at the top of the tower erector. The water storage tank 1-1 has waterproof, dustproof and corrosion-resistant functions, the temperature controller 1-3 can automatically adjust the water temperature according to the ambient temperature and humidity, and the intelligent temperature-controlled water tank 1 can realize dynamic regulation of the water temperature of 0 to 60°C, providing curing water with a suitable temperature for water mist curing or high-temperature steam curing of bridge tower concrete. Especially under extreme weather conditions, it provides a suitable water temperature for cooling or moisturizing the surface of the bridge tower concrete.

[0051] Furthermore, the water supply pipeline 2 includes a main maintenance water pipe 2-1, a support maintenance water pipe 2-3 and an adapter 2-2; the main maintenance water pipe 2-1 is connected to the temperature control water tank 1; the main maintenance water pipe 2-1 is divided into n support maintenance water pipes 2-3 through the adapter 2-2 along the external support of the tower erection machine to the concrete maintenance section of the bridge tower, and each support maintenance water pipe 2-3 is connected to the corresponding spray device 4; the main maintenance water pipe 2-1 and the support maintenance water pipe 2-3 are both seamless steel pipe structures, and the specifications of the main maintenance water pipe 2-1 are The specifications of the supporting water pipe 2-3 are:

[0052] The number n of branch maintenance water pipes 2-3 connected to each main maintenance water pipe 2-1 meets the following requirements:

[0053]

[0054] The cross-sectional area of ​​the bridge tower concrete is S1, with the unit of m2; the cross-sectional area of ​​the maintenance area is S2, with the unit of m2; the concrete height of the maintenance section is h, with the unit of m; the spray range of the sprayer is L, with the unit of m; the spray diffusion area of ​​the sprayer is S0, with the unit of m2 / min; the water mist coverage needs to be completed within the time period [t1, t2], with the unit of min.

[0055] Furthermore, the spray device 4 includes a sprayer 4-1, a connecting water pipe 4-3, a voltage regulator 4-4 and a solenoid valve 4-5 connected in sequence, and a first signal receiver 4-2 is installed on the sprayer 4-1; the spray device 4 is placed on a tower construction machine platform 2m away from the concrete surface of the bridge tower; the diameter of the water mist particles sprayed by the sprayer 4-1 is between 10μm and 100μm, and the spraying radius is not less than 3 meters; the control water pressure range of the voltage regulator 4-4 is 0.1MPa to 0.3MPa; the compressive strength of the connecting water pipe 4-3 is not less than 0.5MPa. At the same time, the anti-leakage function is achieved to ensure the safety of water supply.

[0056] Furthermore, the wireless transmission network delay of the wireless gateway 5-4 and the router 5-5 does not exceed 100 milliseconds.

[0057] Furthermore, the curtain system 6 includes an upper curtain, side curtains, an automatic curtain-pulling device 6-1, a roller shutter 6-3 and a guide rail 6-2; the guide rail 6-2 is laid around the tower-building crane platform, and the guide rail 6-2 has three layers, which are respectively located on the inner side of the top beam, the upper part of the maintenance area, and the lower part of the maintenance area; the upper curtain is connected to the roller shutter 6-3, and magnets are embedded in the side edges of the upper curtain at intervals; the two corners of the side curtain are embedded in the automatic curtain-pulling device 6-1, and the automatic curtain-pulling device 6-1 is slidably connected to the corresponding guide rail 6-2; the roller shutter 6-3 is installed on the inner side of the tower-building crane top beam and the side of the pillar; the installation accuracy of the guide rail 6-2 is ±2 mm to reduce the jamming or deviation of the automatic curtain-pulling device 6-1, and the bearing capacity is not less than 100kg / m.

[0058] Furthermore, the automatic curtain-pulling device 6-1 includes a brake module 6-1-1, a power module 6-1-2, a third signal receiver 6-1-3 and a curtain engaging component 6-1-4; the brake module 6-1-1 provides stop control during the curtain opening and closing process; the power module 6-1-2 performs curtain pulling control; the response time of the third signal receiver 6-1-3 does not exceed 100 milliseconds; the curtain engaging component 6-1-4 is connected to the curtain so that the curtain does not fall off or deflect during the movement. The brake module 6-1-1 realizes precise control, has sufficient braking force and good anti-fatigue performance; the curtain engaging component 6-1-4 has good durability, and the design strength reaches more than 20MPa. The automatic curtain-pulling device 6-1 can realize the unfolding and retracting of the curtain.

[0059] A method for intelligent maintenance of bridge tower concrete using the above device, the method comprising the following steps:

[0060] Step 1: Start the temperature measuring optical fiber 3-3, the weather station 3-1 and the temperature and humidity sensor 3-2, with a collection frequency of 30 minutes per time;

[0061] Step 2: After obtaining multi-source data, the intelligent maintenance platform controls the temperature control water tank 1 based on the measured data through the Internet of Things and remote control technology to complete the adjustment of the maintenance water temperature;

[0062] Step 3: After the water temperature is adjusted, start the automatic curtain-pulling device 6-1 to unfold the curtain along the preset guide rail 6-2. After the automatic curtain-pulling device 6-1 reaches the end point, it brakes and fits on the guide rail 6-2. The magnets at the edge of the upper curtain and the magnets on the platform are attracted to form a closed environment. Then, the solenoid valve 1-2 of the temperature-controlled water tank and the solenoid valve 4-5 on the spray device 4 are opened to transmit the curing water to the voltage stabilizer 4-4 on the spray device 4, and start the sprayer 4-1 for curing.

[0063] Step 4: During the spray maintenance process, the system continuously monitors various data. After the data indicators return to the preset range, the solenoid valve 1-2 of the temperature control water tank and the solenoid valve 4-5 and the sprayer 4-1 on the spray device 4 are closed, and the automatic curtain pulling device 6-1 is activated to cooperate with the rolling curtain machine 6-3 to close the curtain;

[0064] Step 5: Continue to collect various monitoring data, repeat steps 2 to 4, and perform dynamic control and maintenance.

[0065] To facilitate practical use, the collection frequency is definable, generally set at 30 minutes per time; the curing water temperature can be dynamically adjusted between 0 and 60°C to meet on-site maintenance needs; the temperature measurement range should be -20°C to +100°C to meet the temperature changes in the concrete construction and maintenance environment.

[0066] The intelligent bridge tower concrete maintenance device and method provided by the present invention can be integrated on a tower-building machine. By arranging sensing components 3 around the bridge tower concrete, it obtains surrounding multi-source data, such as the temperature inside the concrete, the temperature and humidity on the surface of the concrete, the ambient humidity, the radiation intensity, etc., and generates a corresponding maintenance strategy after analysis and processing. The temperature of the curing water is adjusted in real time by the temperature-controlled water tank 1, and the water supply pipeline 2 connects the water tank and the spray device 4 to stably transmit the curing water. The curing of different concretes can be automatically formed by the cross-sectional area of ​​the concrete, the cross-sectional area of ​​the curing area, the height of the concrete in the curing section, the spray range of the sprayer, the spray diffusion area of ​​the sprayer and the time range, so that the curing of each main curing water pipe 2-1 can automatically form the number of supporting curing water pipes 2-3 connected to it, thereby reducing the input of personnel, achieving accurate curing and improving the curing efficiency and quality. At the same time, the curtain system 6 is responsible for the opening and closing of the curtain, automatically forming a closed curing environment, and improving the curing stability. The present invention can reduce the risk of temperature cracks in the construction process of the bridge tower concrete, reduce the input of personnel on the construction site, and automatically complete the scientific and refined curing of the bridge tower concrete during the construction period, breaking through the current situation of curing relying on manual sprinkling, improving the curing efficiency and quality, and having important reference value and significance for engineering applications.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine, characterized in that: It comprises a temperature-controlled water tank (1), a water supply pipeline (2), a sensing component (3), a spray device (4), a monitoring system (5) and a curtain system (6); The sensing component (3) comprises a weather station (3-1) and a temperature and humidity sensor (3-2), wherein the weather station (3-1) is arranged on the top of the tower erector; the temperature and humidity sensor (3-2) is arranged on the surface of the bridge tower concrete, and the tower bridge concrete is located at the inner center of the tower erector; temperature measuring optical fibers (3-3) are arranged in layers in succession inside the bridge tower concrete, and the connecting pigtail of the temperature measuring optical fiber (3-3) is connected to a distributed optical fiber temperature measurement system DTS host (5-1); The water supply pipeline (2) connects the temperature-controlled water tank (1) placed on the top of the tower building machine with the spray device (4) surrounding the maintenance area and uniformly distributed in the circumference of the tower building machine; the outer side of the spray device (4) is equipped with a curtain system (6), and the curtain system (6) includes an automatic curtain pulling device (6-1); the curtain is pulled by the automatic curtain pulling device (6-1) and runs along the guide rail (6-2) laid around the tower building machine platform to form a closed environment; The monitoring system (5) is located on a platform inside the tower crane, and a DTS host (5-1) and an integrated second signal receiver (5-2) placed inside the monitoring system acquire signals from external sensors and various devices in real time; an integrated wireless gateway (5-4) and a router (5-5) transmit data via a network to achieve high-speed wireless communication between the device and the server; the monitoring system (5) also includes a control system (5-3) and a UPS uninterruptible power supply (5-6), wherein the control system (5-3) is responsible for remotely controlling the device, and the UPS uninterruptible power supply (5-6) ensures that the monitoring system (5) maintains operation in the event of a power failure.

2. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The water supply pipeline (2) is attached to the outer wall of the tower building machine, the spray device (4) is evenly distributed on the inner wall of the tower building machine in the circumferential direction, the monitoring system (5) is located on a platform on the side of the tower building machine, and the curtain system (6) is arranged around the section of the tower building machine corresponding to the maintenance area.

3. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The temperature and humidity sensors (3-2) are located on the outer surface of each side of the bridge tower concrete, and are evenly arranged in six equal parts along the circumference of the bridge tower concrete surface 3m away from the top, with a collection frequency of 30 minutes / time; the collection frequency of the temperature measuring optical fiber (3-3) is 30 minutes / time, and the temperature measuring optical fiber (3-3) is a single continuous arrangement, and is arranged in a serpentine shape from bottom to top inside the concrete along the circumference of six equal parts, and is bent in three layers, so as to monitor the temperature of the surface layer, middle layer and inner layer of the bridge tower concrete in turn; the temperature measuring optical fiber (3-3) is a single continuous arrangement fixed on the steel mesh.

4. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The temperature-controlled water tank (1) has a size of 4×3×2 m, and comprises a water storage tank (1-1), a solenoid valve (1-2) and a temperature controller (1-3) which are connected in sequence; two temperature-controlled water tanks (1) are symmetrically arranged at the top of the tower crane.

5. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The water supply pipeline (2) comprises a main maintenance water pipe (2-1), a support maintenance water pipe (2-3) and an adapter (2-2); the main maintenance water pipe (2-1) is connected to a temperature control water tank (1); the main maintenance water pipe (2-1) is divided into n support maintenance water pipes (2-3) through an adapter (2-2) along the outer support of the tower erection machine to the concrete maintenance section of the bridge tower, and each support maintenance water pipe (2-3) is connected to a corresponding spray device (4); the main maintenance water pipe (2-1) and the support maintenance water pipe (2-3) are both seamless steel pipe structures, and the specifications of the main maintenance water pipe (2-1) are The specifications of the supporting water pipe (2-3) are The number n of branch maintenance water pipes (2-3) connected to each main maintenance water pipe (2-1) meets the following requirements: The cross-sectional area of ​​the bridge tower concrete is S1, with the unit of m2; the cross-sectional area of ​​the maintenance area is S2, with the unit of m2; the concrete height of the maintenance section is h, with the unit of m; the spray range of the sprayer is L, with the unit of m; the spray diffusion area of ​​the sprayer is S0, with the unit of m2 / min; the water mist coverage needs to be completed within the time period [t1, t2], with the unit of min.

6. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The spray device (4) comprises a spray machine (4-1), a connecting water pipe (4-3), a voltage regulator (4-4) and a solenoid valve (4-5) which are connected in sequence, and a first signal receiver (4-2) is installed on the spray machine (4-1); the spray device (4) is placed on a tower erection machine platform 2 meters away from the concrete surface of the bridge tower; the diameter of the water mist particles sprayed by the spray machine (4-1) is between 10 μm and 100 μm, and the spraying radius is not less than 3 meters; the control water pressure range of the voltage regulator (4-4) is 0.1 MPa to 0.3 MPa; the compressive strength of the connecting water pipe (4-3) is not less than 0.5 MPa.

7. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The wireless transmission network delay of the wireless gateway (5-4) and the router (5-5) does not exceed 100 milliseconds.

8. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 1 is characterized in that: The curtain system (6) comprises an upper curtain, side curtains, an automatic curtain-pulling device (6-1), a curtain roller (6-3) and a guide rail (6-2); the guide rail (6-2) is laid around the tower-building machine platform, and the guide rail (6-2) has three layers, which are respectively located on the inner side of the top beam, the upper part of the maintenance area, and the lower part of the maintenance area; the upper curtain is connected to the curtain roller (6-3), and magnets are embedded in the side of the upper curtain at intervals; the two corners of the side curtain are engaged with the automatic curtain-pulling device (6-1), and the automatic curtain-pulling device (6-1) is slidably connected to the corresponding guide rail (6-2); the curtain roller (6-3) is installed on the inner side of the top beam of the tower-building machine and the side of the pillar; the installation accuracy of the guide rail (6-2) is ±2 mm, and the bearing capacity is not less than 100 kg / m.

9. The intelligent maintenance device for bridge tower concrete that can be integrated on a tower erection machine according to claim 8 is characterized in that: The automatic curtain-pulling device (6-1) comprises a braking module (6-1-1), a power module (6-1-2), a third signal receiver (6-1-3) and a curtain engaging component (6-1-4); the braking module (6-1-1) provides stop control during the curtain opening and closing process; the power module (6-1-2) performs curtain-pulling control; the response time of the third signal receiver (6-1-3) does not exceed 100 milliseconds; the curtain engaging component (6-1-4) is connected to the curtain so that the curtain does not fall off or deflect during the movement process.

10. A method for intelligent maintenance of bridge tower concrete using the device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: Start the temperature measuring optical fiber (3-3), the weather station (3-1) and the temperature and humidity sensor (3-2), with a collection frequency of 30 minutes per time; Step 2: After acquiring multi-source data, the intelligent maintenance platform controls the temperature control water tank (1) based on the measured data through the Internet of Things and remote control technology to complete the adjustment of the maintenance water temperature; Step 3: After the water temperature is adjusted, the automatic curtain-pulling device (6-1) is started to unfold the curtain along the preset guide rail (6-2). After the automatic curtain-pulling device (6-1) reaches the end point, it brakes and is embedded in the guide rail (6-2). The magnets at the edge of the upper curtain and the magnets on the platform are magnetically attracted to each other to form a closed environment. Then, the solenoid valve (1-2) of the temperature-controlled water tank and the solenoid valve (4-5) on the spray device (4) are opened to transmit the curing water to the voltage stabilizer (4-4) on the spray device (4), and the spray machine (4-1) is started for curing. Step 4: During the spray maintenance process, the system continuously monitors various data. After various data indicators return to the preset range, the solenoid valve (1-2) of the temperature control water tank and the solenoid valve (4-5) and the sprayer (4-1) on the spray device (4) are closed, and the automatic curtain pulling device (6-1) is activated to cooperate with the rolling curtain machine (6-3) to close the curtain cloth; Step 5: Continue to collect various monitoring data, repeat steps 2 to 4, and perform dynamic control and maintenance.

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