Heating template for pier column concrete

Abstract

The utility model belongs to the technical field of formwork construction, and particularly relates to a heating formwork for pier column concrete, which comprises a steel plate and a heating component arranged outside the steel plate. The heating assembly comprises transverse stiffening channel steels, vertical stiffening channel steels and conductive solution filling holes, a plurality of transverse stiffening channel steels and vertical stiffening channel steels are welded on the outer surface of the steel plate, and the transverse stiffening channel steels are communicated with the vertical stiffening channel steels; the transverse stiffening channel steel and the vertical stiffening channel steel are filled with heat conduction liquid, the liquid is heated through the electric heating wire after being electrified, heat is directly transferred to concrete through the formwork, a heating source is attached to the concrete, the heating effect is good, and when the strength of the concrete meets the requirement, the conductive liquid is discharged from the conductive liquid discharging hole and recycled. When the environment temperature meets the concrete strength forming requirement, all components in the device can be recycled, resource waste is reduced, cost is saved, and economic benefits are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of template construction, and in particular relates to a heating template for pier column concrete. Background Art

[0002] When bridge construction is carried out in the north in winter, the construction environment temperature often reaches below zero. When concrete construction is carried out at this time, the concrete will be attacked by low temperature during the solidification process, the hydration of cement is hindered, and the free water begins to freeze, which seriously affects the quality of concrete. In order to prevent the concrete poured on site from freezing or speed up the construction progress, hot water mixing, sand and gravel heating, and insulation covering are generally used. However, some of these methods have limited effects, and some have low construction efficiency. When the temperature is low, the construction quality is difficult to guarantee. Precast beams and slabs can be cured by centralized steam heating in the precast yard, and the concrete strength can fully meet the requirements of the specifications. Since the pier construction adopts the method of on-site casting and the distance between adjacent piers is large, there is no way to carry out centralized maintenance. When the temperature is too low in winter, the construction can only be suspended and resumed when the temperature returns to a suitable temperature next year. This will extend the construction period.

[0003] Therefore, a heating formwork for pier column concrete is designed to solve the above problems. Utility Model Content

[0004] To solve the problems raised in the above background technology. The utility model provides a heating template for pier column concrete, which is filled with heat-conducting liquid inside the transverse stiffening channel steel and the vertical stiffening channel steel, and the liquid is heated by the electric heating wire after power is turned on, and the heat is directly transferred to the concrete through the template, so that the heat source and the concrete are in contact, and the heating effect is good. When the concrete strength reaches the requirement, the conductive liquid is discharged from the conductive solution discharge hole and recycled. When the ambient temperature meets the requirements for the formation of concrete strength, the transverse stiffening channel steel and the vertical stiffening channel steel do not need to be filled with conductive solution for heating, and the template can be used as an ordinary template. All components in this device can be recycled, reducing resource waste, saving costs, and improving economic benefits. By installing the paraffin phase change material sparsely at the bottom and densely at the top, the bridge can better cope with extreme weather changes during construction, so that the paraffin phase change material releases more heat in the area where it is more needed, and releases less heat at the warmer bottom, so that the temperature distribution inside the pier is more uniform.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating formwork for pier column concrete, comprising a steel plate and a heating assembly arranged outside the steel plate;

[0006] The heating component includes a transverse stiffening channel steel, a vertical stiffening channel steel and a conductive solution injection hole. A plurality of transverse stiffening channel steels and vertical stiffening channel steels are welded on the outer surface of the steel plate. The transverse stiffening channel steel is connected to the vertical stiffening channel steel. A conductive solution injection hole is provided on the outer side of one end of the transverse stiffening channel steel near the top end of the steel plate, an exhaust hole is provided on the outer side of the other end of the transverse stiffening channel steel near the top end of the steel plate, and a conductive solution discharge hole is provided on the outer side of one end of the transverse stiffening channel steel near the bottom end of the steel plate. The interior of the transverse stiffening channel steel and the vertical stiffening channel steel is filled with a conductive solution body. A plurality of paraffin phase change materials are annularly inlaid on the inner wall surface of the steel plate, and the arrangement of the paraffin phase change materials is sparse at the bottom and dense at the top.

[0007] As a preferred heating formwork for pier column concrete of the utility model, the inner wall surfaces of the transverse stiffening channel steel and the vertical stiffening channel steel are installed with heating wires, the heating wires inside the transverse stiffening channel steel are all connected in series, the heating wires inside the vertical stiffening channel steel are all connected in series, and the heating wires inside the transverse stiffening channel steel are connected in parallel with the heating wires inside the vertical stiffening channel steel.

[0008] As a preferred heating formwork for pier column concrete of the utility model, a temperature controller is installed on the outer side of the end of the steel plate, a temperature sensor is installed on the outer side of one end of the thermostat, and the outer side of the end of the temperature sensor is in contact with the outer surface of the welding point of the transverse stiffening channel steel, the vertical stiffening channel steel and the steel plate.

[0009] As a preferred embodiment of the utility model for a heating formwork for pier column concrete, the inner wall surface of the cavity formed by the steel plate, the transverse stiffening channel steel and the vertical stiffening channel steel is fixedly connected with PVC insulating cloth.

[0010] As a preferred embodiment of the utility model for a heating template for pier column concrete, the heating component further comprises a socket and a thermostat, and a fuse is connected in series between the socket and the thermostat.

[0011] As a preferred embodiment of the utility model for a heating formwork for pier column concrete, aluminum film pearl cotton is fixedly connected to the outer side of one end of the transverse stiffening channel steel and the vertical stiffening channel steel.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: a heating component is added to the present application, and a heat-conducting liquid is filled inside the transverse stiffening channel steel and the vertical stiffening channel steel. After power is turned on, the liquid is heated by the electric heating wire, and the heat is directly transferred to the concrete through the template, so that the heat source and the concrete are in contact, and the heating effect is good. When the concrete strength reaches the requirement, the conductive liquid is discharged from the conductive solution discharge hole and recycled. When the ambient temperature meets the requirements for the formation of concrete strength, the transverse stiffening channel steel and the vertical stiffening channel steel do not need to be filled with conductive solution for heating, and the template can be used as an ordinary template. All components in the device can be recycled, reducing resource waste, saving costs, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view in the utility model;

[0016] Figure 3 It is a cross-sectional view of the steel plate in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the conductive solution body and the PVC insulating cloth in the utility model;

[0018] Figure 5 It is the circuit diagram of the utility model;

[0019] Figure 6 It is a cross-sectional view of the paraffin phase change material in the utility model;

[0020] In the figure:

[0021] 1. Steel plate;

[0022] 2. Heating component; 21. Horizontal reinforcing channel steel; 22. Vertical reinforcing channel steel; 23. Conductive solution injection hole; 24. Conductive solution body; 25. Conductive solution discharge hole; 26. Heating wire; 27. Exhaust hole; 28. Paraffin phase change material; 29. ​​Temperature sensor; 210. Temperature controller; 211. PVC insulating cloth; 212. Fuse; 213. Socket; 214. Aluminum film pearl cotton. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown;

[0025] A heating formwork for pier column concrete comprises a steel plate 1.

[0026] In this implementation scheme: when bridge construction is carried out in the north in winter, the construction environment temperature often reaches below zero. When concrete construction is carried out at this time, the concrete will be attacked by low temperature during the solidification process, the hydration of cement is hindered, and the free water begins to freeze, which seriously affects the quality of concrete; in order to prevent the concrete poured on site from freezing or speed up the construction progress, hot water mixing, sand and gravel heating and insulation covering are generally used, but some of these methods have limited effects, and some have low construction efficiency. When the temperature is low, the construction quality is difficult to guarantee. Prefabricated beams and slabs can be centrally steam heated and cured in the prefabrication yard, and the concrete strength can fully meet the requirements of the specifications. Since the pier construction adopts the method of on-site casting, and the distance between adjacent piers is large, there is no way to carry out centralized maintenance. When the temperature is too low in winter, the construction can only be suspended, and the construction will be resumed when the temperature returns to a suitable temperature next year. This will cause the construction period to be extended. In order to solve this technical problem, a heating component 2 is added on this basis.

[0027] More specifically:

[0028] like Figures 1 to 6 As shown:

[0029] In combination with the above content: the heating component 2 includes a transverse stiffening channel steel 21, a vertical stiffening channel steel 22 and a conductive solution injection hole 23. The outer surface of the steel plate 1 is welded with a plurality of transverse stiffening channel steels 21 and vertical stiffening channel steels 22. The transverse stiffening channel steel 21 is connected to the vertical stiffening channel steel 22. A conductive solution injection hole 23 is opened on the outer side of one end of the transverse stiffening channel steel 21 near the top of the steel plate 1, an exhaust hole 27 is opened on the outer side of the other end of the transverse stiffening channel steel 21 near the top of the steel plate 1, and a conductive solution discharge hole 27 is opened on the outer side of one end of the transverse stiffening channel steel 21 near the bottom of the steel plate 1. 5. The interior of the transverse stiffening channel steel 21 and the vertical stiffening channel steel 22 is filled with a conductive solution body 24. The inner wall surface of the steel plate 1 is annularly inlaid with a plurality of paraffin phase change materials 28. The arrangement of the paraffin phase change materials 28 is sparse at the bottom and dense at the top. The inner wall surfaces of the transverse stiffening channel steel 21 and the vertical stiffening channel steel 22 are both installed with electric heating wires 26. A thermostat 210 is installed on the outer side of the end of the steel plate 1. A temperature sensor 29 is installed on the outer side of one end of the thermostat 210. The outer side of the end of the temperature sensor 29 contacts the outer surface of the welding portion of the transverse stiffening channel steel 21, the vertical stiffening channel steel 22 and the steel plate 1.

[0030] In the present embodiment: in the heating formwork for pier column concrete, the shape of the steel plate 1 is determined according to the shape of the pier column. In order to strengthen the strength and rigidity of the steel plate 1, it is necessary to weld transverse stiffening channel steels 21 and vertical stiffening channel steels 22 on the outside of the steel plate 1 for reinforcement. The transverse stiffening channel steels 21 and the vertical stiffening channel steels 22 are vertically cross-arranged. A closed cavity is formed between the transverse stiffening channel steels 21 and the vertical stiffening channel steels 22 and the steel plate 1. The connection between the transverse stiffening channel steels 21 and the vertical stiffening channel steels 22 is connected. All the transverse stiffening channel steels 21 and the vertical stiffening channel steels 22 on the entire formwork form a connected closed space with the steel plate 1. The upper side of the steel plate 1 is provided with a transverse stiffening channel steel 21 flush with the top of the steel plate 1, and the lower side of the steel plate 1 is provided with a transverse stiffening channel steel 21 flush with the bottom of the steel plate 1. During winter construction, when the ambient temperature is lower than 5 degrees Celsius, the conductive solution discharge hole 25 at the bottom of the template is closed, and the conductive solution body 24 is poured into the conductive solution injection hole 23. The exhaust hole 27 is observed until the conductive solution body 24 emerges from the exhaust hole 27, and the solution is stopped. The conductive solution injection hole 23 is closed, and the power is turned on. The conductive solution body 24 is heated by the electric heating wire 26 to heat the concrete in the template. The surface temperature of the steel plate 1 is measured at any time by the temperature sensor 29. If there is a deviation, it is adjusted in time through the temperature controller 210. The temperature controller 210 is manually set to control the temperature at 30-40 degrees Celsius. The temperature can be set according to the ambient temperature and humidity. The horizontal stiffening channel steel 21 and the vertical stiffening channel steel in the device The interior of the steel 22 is filled with heat-conducting liquid. After power is turned on, the liquid is heated by the electric heating wire 26. The heat is directly transferred to the concrete through the template, so that the heat source fits the concrete and the heating effect is good. When the concrete strength reaches the requirement, the conductive liquid is discharged from the conductive solution discharge hole 25 and recycled. When the ambient temperature meets the requirements for the formation of concrete strength, the horizontal reinforcing channel steel 21 and the vertical reinforcing channel steel 22 do not need to be filled with conductive solution for heating, and the template can be used as an ordinary template. All components in the device can be recycled, reducing resource waste, saving costs, and improving economic benefits. At the same time, the inner wall surface of the steel plate 1 is annularly inlaid with a plurality of paraffin phase change materials 28. The paraffin phase change material 28 is a commonly used organic phase change material with a stable phase The phase change temperature and high latent heat value of the paraffin phase change material 28 can undergo a solid-liquid phase change within a specific temperature range, thereby absorbing and releasing a large amount of heat energy. The phase change temperature of the paraffin phase change material 28 can be adjusted as needed to adapt to the working environment in the bridge skeleton. Before the bridge construction, the paraffin phase change material 28 is heated to liquefy the paraffin phase change material 28, and then the paraffin phase change material 28 is embedded in the through grooves that have been opened in advance on the steel plate 1. When the ambient temperature is low, the paraffin phase change material 28 will undergo a conversion process from liquid to solid, releasing a large amount of heat energy, and making the surrounding environment at a temperature suitable for concrete solidification. The paraffin phase change material 28 is installed in a sparse manner at the bottom and dense at the top. The top of the bridge is more directly exposed to the external environment than the bottom.It is more susceptible to the convection and radiation heat dissipation of cold air, resulting in a faster temperature drop. The ground usually has a certain insulation effect, especially when covered with snow. Therefore, the bottom of the bridge is close to the ground, so its temperature drops relatively slowly. By installing the paraffin phase change material 28 sparsely at the bottom and densely at the top, the bridge can better cope with extreme weather changes during construction, so that the paraffin phase change material 28 releases more heat in areas where it is more needed, and releases less heat at the warmer bottom, making the temperature distribution inside the bridge pier more uniform.

[0031] It should be noted that the phase change of paraffin wax refers to the process in which paraffin wax changes from solid to liquid or from liquid to solid during the process of heating or cooling. This phase change process absorbs or releases a large amount of heat, so it has great potential in thermal management and energy storage, such as Figure 6 The paraffin phase change material 28 consists of a shell and an internal phase change material.

[0032] Going further:

[0033] In an optional embodiment, the heating wires 26 inside the transverse stiffening channel steel 21 are all connected in series, the heating wires 26 inside the vertical stiffening channel steel 22 are all connected in series, and the heating wires 26 inside the transverse stiffening channel steel 21 are connected in parallel with the heating wires 26 inside the vertical stiffening channel steel 22.

[0034] In this embodiment: the heating wire 26 inside the transverse stiffening channel steel 21 is connected in parallel with the heating wire 26 inside the vertical stiffening channel steel 22, ensuring that when the heating wire 26 inside the transverse stiffening channel steel 21 is damaged, the heating wire 26 inside the vertical stiffening channel steel 22 can work normally, and when the heating wire 26 inside the vertical stiffening channel steel 22 is damaged, the heating wire 26 inside the transverse stiffening channel steel 21 can also work normally, thereby increasing the fault tolerance of the device and ensuring smooth operation.

[0035] Going further:

[0036] In an optional embodiment, the inner wall surface of the cavity formed by the steel plate 1, the transverse stiffening channel steel 21 and the vertical stiffening channel steel 22 is fixedly connected with a PVC insulating cloth 211.

[0037] In this embodiment: PVC insulating cloth 211 is used to wrap and fix the heating wire 26, which can ensure the safe and reliable connection of the heating wire 26 and prevent safety accidents caused by failure of the heating wire 26. The PVC insulating cloth 211 also has good corrosion resistance. In the environment where the pier is constructed, there are various chemicals that corrode the heating wire 26. The use of PVC insulating cloth 211 can protect the heating wire 26 and extend its service life.

[0038] Going further:

[0039] In an optional embodiment, the heating component 2 further includes a socket 213 and a thermostat 210 , and a fuse 212 is connected in series between the socket 213 and the thermostat 210 .

[0040] In this embodiment: a fuse 212 is connected in series between the jack 213 and the thermostat 210. The fuse 212 can effectively protect the circuit safety. When a fault such as overload or short circuit occurs in the circuit, the fuse 212 can quickly melt and cut off the power supply, thereby avoiding circuit damage and helping to ensure electrical safety throughout the construction process.

[0041] Going further:

[0042] In an optional embodiment, an aluminum film pearl cotton 214 is fixedly connected to the outer side of one end of the transverse stiffening channel steel 21 and the vertical stiffening channel steel 22 .

[0043] In this embodiment: a layer of aluminum film pearl cotton 214 is laid on the outside of the entire pier column template to reduce the internal heat radiation and improve the utilization rate of heat energy.

[0044] Working principle: In the heated formwork for pier concrete, the shape of the steel plate 1 is determined according to the shape of the pier. In order to strengthen the strength and rigidity of the steel plate 1, it is necessary to weld transverse stiffening channel steels 21 and vertical stiffening channel steels 22 on the outside of the steel plate 1 for reinforcement. The transverse stiffening channel steels 21 and vertical stiffening channel steels 22 are vertically cross-arranged to form a closed cavity with the steel plate 1. The connection between the transverse stiffening channel steels 21 and the vertical stiffening channel steels 22 is connected. All the transverse stiffening channel steels 21 and vertical stiffening channel steels 22 on the entire formwork form a connected closed space with the steel plate 1. The upper side of the steel plate 1 is provided with a transverse stiffening channel steel 21 flush with the top of the steel plate 1, and the lower side of the steel plate 1 is provided with a transverse stiffening channel steel 21 flush with the bottom of the steel plate 1. In winter During the construction of the season, when the ambient temperature is lower than 5 degrees Celsius, the conductive solution discharge hole 25 at the bottom of the template is closed, and the conductive solution body 24 is poured into the conductive solution injection hole 23, and the exhaust hole 27 is observed until the conductive solution body 24 emerges from the exhaust hole 27, and the solution is stopped. The conductive solution injection hole 23 is closed, and the power is turned on. The conductive solution body 24 is heated by the electric heating wire 26 to heat the concrete in the template. The surface temperature of the steel plate 1 is measured at any time by the temperature sensor 29. If there is a deviation, it is adjusted in time through the temperature controller 210. The temperature controller 210 is manually set to control the temperature at 30-40 degrees Celsius. The temperature can be set according to the ambient temperature and humidity. The horizontal stiffening channel steel 21 and the vertical stiffening channel steel in the device The interior of 22 is filled with heat-conducting liquid. After power is turned on, the liquid is heated by the electric heating wire 26. The heat is directly transferred to the concrete through the template, so that the heat source is in contact with the concrete and the heating effect is good. When the concrete strength reaches the requirement, the conductive liquid is discharged from the conductive solution discharge hole 25 and recycled. When the ambient temperature meets the requirements for the formation of concrete strength, the horizontal reinforcing channel steel 21 and the vertical reinforcing channel steel 22 do not need to be filled with conductive solution for heating, and the template can be used as an ordinary template. All components in this device can be recycled, reducing resource waste, saving costs, and improving economic benefits. At the same time, the inner wall surface of the steel plate 1 is annularly inlaid with a plurality of paraffin phase change materials 28. The paraffin phase change material 28 is a commonly used organic phase change material with a stable phase The phase change temperature and high latent heat value of the paraffin phase change material 28 can undergo a solid-liquid phase change within a specific temperature range, thereby absorbing and releasing a large amount of heat energy. The phase change temperature of the paraffin phase change material 28 can be adjusted as needed to adapt to the working environment in the bridge skeleton. Before the bridge construction, the paraffin phase change material 28 is heated to liquefy the paraffin phase change material 28, and then the paraffin phase change material 28 is embedded in the through grooves that have been opened in advance on the steel plate 1. When the ambient temperature is low, the paraffin phase change material 28 will undergo a conversion process from liquid to solid, releasing a large amount of heat energy, and making the surrounding environment at a temperature suitable for concrete solidification. The paraffin phase change material 28 is installed in a sparse manner at the bottom and dense at the top. The top of the bridge is more directly exposed to the external environment than the bottom.It is more susceptible to the convection and radiation heat dissipation of cold air, resulting in a faster drop in temperature. The ground usually has a certain insulation effect, especially when covered with snow. Therefore, the bottom of the bridge is close to the ground, so its temperature drops relatively slowly. By installing the paraffin phase change material 28 sparsely at the bottom and densely at the top, the bridge can better cope with changes in extreme weather during construction, so that the paraffin phase change material 28 releases more heat in areas where it is more needed, and releases less heat at the warmer bottom, making the temperature distribution inside the pier more uniform. The heating wire 26 inside the transverse stiffening channel steel 21 is connected in parallel with the heating wire 26 inside the vertical stiffening channel steel 22, ensuring that when the heating wire 26 inside the transverse stiffening channel steel 21 is damaged, the heating wire 26 inside the vertical stiffening channel steel 22 can work normally, and when the heating wire 26 inside the vertical stiffening channel steel 22 is damaged, the heating wire 26 inside the transverse stiffening channel steel 21 can also work normally. The PVC insulating cloth 211 is used to wrap and fix the heating wire 26, which can ensure the safety and reliability of the connection of the heating wire 26 and prevent safety accidents caused by the failure of the heating wire 26. The PVC insulating cloth 211 also has good corrosion resistance. In the environment where the pier is constructed, there are various chemical corrosion heating wires 26. The use of PVC insulating cloth 211 can protect the heating wire 26 and extend its service life. A fuse 212 is connected in series between the jack 213 and the thermostat 210. The fuse 212 can effectively protect the circuit safety. When an overload or short circuit occurs in the circuit, the fuse 212 can quickly melt and cut off the power supply, thereby avoiding circuit damage, which helps to ensure electrical safety during the entire construction process. A layer of aluminum film pearl cotton 214 is laid on the outside of the entire pier column template to reduce the internal heat radiation and improve the utilization rate of thermal energy.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heating formwork for pier column concrete, comprising a steel plate (1), characterized in that: It also includes a heating component (2) arranged outside the steel plate (1); The heating assembly (2) comprises a transverse reinforcing channel steel (21), a vertical reinforcing channel steel (22) and a conductive solution injection hole (23); a plurality of transverse reinforcing channel steels (21) and vertical reinforcing channel steels (22) are welded to the outer surface of the steel plate (1); the transverse reinforcing channel steel (21) is connected to the vertical reinforcing channel steel (22); a conductive solution injection hole (23) is provided on the outer side of one end of the transverse reinforcing channel steel (21) near the top of the steel plate (1); and a conductive solution injection hole (23) is provided on the outer side of the transverse reinforcing channel steel (21) near the top of the steel plate (1). An exhaust hole (27) is provided on the outer side of the other end of the transverse stiffening channel steel (21), and a conductive solution discharge hole (25) is provided on the outer side of one end of the transverse stiffening channel steel (21) close to the bottom of the steel plate (1). The interior of the transverse stiffening channel steel (21) and the vertical stiffening channel steel (22) is filled with a conductive solution body (24). The inner wall surface of the steel plate (1) is annularly inlaid with a plurality of paraffin phase change materials (28), and the arrangement of the paraffin phase change materials (28) is sparse at the bottom and dense at the top.

2. The heating formwork for pier column concrete according to claim 1 is characterized in that: The inner wall surfaces of the transverse stiffening channel steel (21) and the vertical stiffening channel steel (22) are both installed with electric heating wires (26); the electric heating wires (26) inside the transverse stiffening channel steel (21) are all connected in series, and the electric heating wires (26) inside the vertical stiffening channel steel (22) are all connected in series; the electric heating wires (26) inside the transverse stiffening channel steel (21) are connected in parallel with the electric heating wires (26) inside the vertical stiffening channel steel (22).

3. The heated formwork for pier column concrete according to claim 1, characterized in that: A temperature controller (210) is installed on the outer side of the end of the steel plate (1), and a temperature sensor (29) is installed on the outer side of one end of the temperature controller (210), and the outer side of the end of the temperature sensor (29) is in contact with the outer surface of the welding point between the transverse stiffening channel steel (21), the vertical stiffening channel steel (22) and the steel plate (1).

4. The heated formwork for pier column concrete according to claim 1, characterized in that: The inner wall surface of the cavity formed by the steel plate (1), the transverse stiffening channel steel (21) and the vertical stiffening channel steel (22) is fixedly connected with a PVC insulating cloth (211).

5. The heated formwork for pier column concrete according to claim 1, characterized in that: The heating component (2) further comprises a socket (213) and a temperature controller (210), and a fuse (212) is connected in series between the socket (213) and the temperature controller (210).

6. The heated formwork for pier column concrete according to claim 1, characterized in that: Aluminum film pearl cotton (214) is fixedly connected to the outer sides of one end of the transverse stiffening channel steel (21) and the vertical stiffening channel steel (22).

Images