Winter grouting self-heating device of assembly type structure

Abstract

The utility model discloses an assembly type structure winter grouting self-heating device, which relates to the sleeve grouting field, and comprises a wall mould table and a heating assembly, the front end of the wall mould table is provided with a wall side mould, the heating assembly used for self-heating is arranged on the inner side of the wall side mould, and the wall side mould is arranged on the wall side mould. The heating assembly comprises a horizontal tie bar, a vertical tie bar, a framework iron wire and an electric heat tracing, the vertical tie bar is arranged in the middle of the horizontal tie bar, the framework iron wire is installed in the middle of the vertical tie bar, and the electric heat tracing is arranged on the inner side of the vertical tie bar. According to the assembly type structure winter grouting self-heating device, the heating assembly is arranged so that the heat preservation effect can be achieved during construction in winter, the grouting sleeve can be maintained at the constant temperature for maintenance through the self-temperature-limiting function of the electric heat tracing wire, and the maintenance temperature of the grouting sleeve can be controlled through the self-temperature-limiting function of electric heat tracing; therefore, the device can be protected, and the problem that the connection strength of the grouting sleeve is low or the strength increasing speed of the grouting material is delayed during grouting in winter is solved.

Description

Technical Field

[0001] The utility model relates to the field of sleeve grouting, in particular to an assembled structure winter grouting self-heating device. Background Art

[0002] As a key process in prefabricated building construction, sleeve grouting technology is used for the connection of vertical components (such as shear walls and frame columns) and horizontal components (such as frame beams) in reinforced concrete structure engineering, steel structure engineering, bridge engineering, offshore oil production platform engineering, offshore wind power towers and other fields. It makes up for the shortcomings of traditional steel structure connection methods (mainly including welding and bolt connections) and has been rapidly developed and applied.

[0003] As the main form of steel bar connection for prefabricated structures, the construction technology of grout sleeves has gradually matured. However, the low temperature in winter (below 5°C) will greatly reduce the mechanical properties of the grouting material, and winter construction insulation is required. The traditional winter insulation construction technology uses color strips, insulation cotton felt, hot air blowers, etc. for insulation. Due to the large opening area in the space, the insulation effect is not ideal, which reduces the connection strength of the grout sleeve or slows down the growth rate of the grouting material strength, affecting the connection effect and causing construction delays.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a prefabricated structure winter grouting self-heating device is provided. Utility Model Content

[0005] The purpose of the utility model is to provide a self-heating device for grouting in winter of an assembled structure, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-heating device for winter grouting of an assembled structure, comprising a wall formwork platform and a heating component, a wall side formwork is arranged at the front end of the wall formwork platform, the heating component for self-heating is arranged on the inner side of the wall side formwork, and the heating component comprises horizontal reinforcement, vertical reinforcement, skeleton wire and electric heating, a vertical reinforcement is arranged in the middle of the horizontal reinforcement, a skeleton wire is installed in the middle of the vertical reinforcement, and an electric heating is arranged on the inner side of the vertical reinforcement.

[0007] Furthermore, a mounting groove is provided at the end of the wall side form, and a grouting sleeve is arranged inside the mounting groove.

[0008] Furthermore, a grouting hole is provided at the front end of the grouting sleeve, and a connecting component for grouting is provided below the grouting hole.

[0009] Furthermore, the connection assembly includes a grouting hole and a connection block, and connection blocks are provided at both ends of the grouting hole.

[0010] Furthermore, the connection assembly also includes a connection pipe and a connection slot. The connection pipe is arranged in front of the grouting hole, and the inner wall of the connection pipe is provided with a connection slot.

[0011] Furthermore, grouting connecting steel bars are arranged inside the grouting sleeve, and four groups of grouting connecting steel bars are arranged.

[0012] Furthermore, a temperature control box is provided at the left end of the wall side mold, and the temperature control box and the electric heating are electrically connected.

[0013] Furthermore, a threaded connector is provided at the front end of the wall side mold, and an observation hole is provided in the middle of the wall side mold.

[0014] The utility model provides a self-heating device for winter grouting of assembled structures, which has the following beneficial effects:

[0015] 1. The utility model can play a role of heat preservation during winter construction by providing a heating component. The self-limiting temperature function of the electric heating line can maintain the grouting sleeve at a constant temperature for curing. The curing temperature of the grouting sleeve can be controlled by the self-limiting temperature function of the electric heating, thereby protecting the performance of the device and avoiding the problem of low connection strength of the grouting sleeve or slowing down the strength growth rate of the grouting material during winter grouting.

[0016] 2. The utility model is provided with an observation hole to observe the density of the grouting area at the bottom of the wall during grouting. The vertical and horizontal reinforcements are used to support the device and the electric heating can be fixed by the skeleton wire. The electric heating wire is fixed to the prefabricated wall reinforcement by winding. The connection assembly can be used to observe the internal depth in time during grouting, so that the grouting work can be better completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an assembled structure winter grouting self-heating device of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection component structure of an assembled structure winter grouting self-heating device of the utility model;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point A in the body 1 of an assembled structure winter grouting self-heating device of the utility model.

[0020] In the figure: 1. Wall formwork; 2. Wall side formwork; 3. Heating assembly; 301. Horizontal tie rod; 302. Vertical tie rod; 303. Skeleton wire; 304. Electric heating; 4. Threaded connector; 5. Mounting slot; 6. Grouting sleeve; 7. Connection assembly; 701. Grouting hole; 702. Connection block; 703. Connection pipe; 704. Connection slot; 8. Overflow hole; 9. Grouting connecting steel bar; 10. Temperature control box; 11. Observation hole. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 3 As shown, a self-heating device for grouting in winter of an assembled structure comprises a wall formwork platform 1 and a heating component 3. A wall side formwork 2 is arranged at the front end of the wall formwork platform 1. The heating component 3 for self-heating is arranged on the inner side of the wall side formwork 2, and the heating component 3 comprises horizontal tie bars 301, vertical tie bars 302, skeleton wires 303 and electric heating 304. A vertical tie bar 302 is arranged in the middle of the horizontal tie bar 301, and a skeleton wire 303 is installed in the middle of the vertical tie bar 302. An electric heating 304 is arranged on the inner side of the vertical tie bar 302. The heating component 3 can play a role of heat preservation during winter construction. The self-limiting temperature function of the electric heating line 304 can maintain the grouting sleeve 6 at a constant temperature for curing. The self-limiting temperature function of the electric heating line 304 can control the curing temperature of the grouting sleeve 6, thereby improving the protective performance of the device and avoiding winter. In order to solve the problem of low connection strength of the grouting sleeve 6 or slow growth rate of grouting material strength during grouting, the vertical tie bars 302 and the horizontal tie bars 301 are used to support the device and at the same time, the electric heating 304 can be fixed by the skeleton wire 303. The electric heating 304 wire is fixed to the prefabricated wall steel bars by winding. A mounting groove 5 is provided at the end of the wall side form 2, and a grouting sleeve 6 is provided inside the mounting groove 5. Grouting connecting steel bars 9 are provided inside the grouting sleeve 6, and four groups of grouting connecting steel bars 9 are provided. A temperature control box 10 is provided at the left end of the wall side form 2, and the temperature control box 10 and the electric heating 304 are electrically connected. A threaded connector 4 is provided at the front end of the wall side form 2, and an observation hole 11 is provided in the middle of the wall side form 2. The observation hole 11 can be used to observe the density of the grouting area at the bottom of the wall during grouting.

[0023] like Figure 2As shown, a grouting sleeve 6 is provided with an overflow hole 8 at the front end, and a connecting component 7 for grouting is provided below the overflow hole 8, the connecting component 7 includes a grouting hole 701 and a connecting block 702, and connecting blocks 702 are provided at both ends of the grouting hole 701, the connecting component 7 also includes a connecting pipe 703 and a connecting groove 704, a connecting pipe 703 is provided in front of the grouting hole 701, and a connecting groove 704 is provided on the inner wall of the connecting pipe 703, by providing the connecting component 7, the internal depth can be observed in time during grouting, so that the grouting work can be better completed.

[0024] In summary, the prefabricated structure winter grouting self-heating device firstly Figure 1-Figure 3 The structure shown in the figure can first be modeled by BIM technology to arrange the electric heating 304 and the grouting sleeve 6. The selection and winding method of the electric heating 304 line are determined according to the wall thickness, the pre-embedded grouting sleeve 6, the residual insulation target temperature, the average daily minimum temperature in winter in the construction area, etc., and the setting point of the temperature control box is determined. The installation groove 5 adapted to the grouting sleeve 6 is opened on the wall side form 2, the wall form platform 1 is cleaned, the wall side form 2 is manually installed, and it is assembled with the threaded connector 4 to be assembled as a whole and assembled as a wall formwork. The grouting sleeve 6 is installed in the installation groove 5 so that the grouting sleeve 6 is fixed to the wall side form 2, and the connecting pipe 703 is connected by a slot connection so that it is fixed as a whole to the sleeve grouting device. The observation hole 11 is provided to observe the density of the grouting area at the bottom of the wall during grouting. The electric heating 304 is fixed to the horizontal reinforcement 301 and the vertical reinforcement 302 with the skeleton wire 303 by the winding method and embedded in the prefabricated wall. The temperature control box 10 and the electric heating 304 are electrically connected. The electric heating 304 is passed through the wall side mold 2 to extend the electric heating 304 wire laterally out of the prefabricated component. The wire at the extended part is jointed and protected. The circuit of the electric heating 304 is tested for passage, and then the whole is poured. After the winter hoisting is completed, the wire of the electric heating 304 is connected to the temperature control box 10 and the electric box with a reserved joint for temperature control maintenance. When the temperature of the grouting area rises to 5°C, grouting construction and maintenance are carried out.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A self-heating device for winter grouting of an assembled structure, comprising a wall formwork platform (1) and a heating assembly (3), characterized in that: A wall side form (2) is arranged at the front end of the wall form platform (1); the heating component (3) for self-heating is arranged on the inner side of the wall side form (2); and the heating component (3) comprises horizontal tie bars (301), vertical tie bars (302), skeleton iron wires (303) and electric heating (304); the middle part of the horizontal tie bars (301) is provided with vertical tie bars (302); the middle part of the vertical tie bars (302) is installed with skeleton iron wires (303); and the inner side of the vertical tie bars (302) is provided with electric heating (304).

2. The self-heating device for winter grouting of an assembled structure according to claim 1, characterized in that: An installation groove (5) is provided at the end of the wall side form (2), and a grouting sleeve (6) is arranged inside the installation groove (5).

3. The self-heating device for winter grouting of an assembled structure according to claim 2, characterized in that: The front end of the grouting sleeve (6) is provided with a grouting hole (8), and a connecting assembly (7) for grouting is provided below the grouting hole (8).

4. The self-heating device for winter grouting of an assembled structure according to claim 3 is characterized in that: The connection assembly (7) comprises a grouting hole (701) and a connection block (702), and connection blocks (702) are provided at both ends of the grouting hole (701).

5. The self-heating device for winter grouting of an assembled structure according to claim 4, characterized in that: The connection assembly (7) further comprises a connection pipe (703) and a connection slot (704); the connection pipe (703) is arranged in front of the grouting hole (701), and the inner wall of the connection pipe (703) is provided with a connection slot (704).

6. The self-heating device for winter grouting of an assembled structure according to claim 2, characterized in that: The grouting sleeve (6) is provided with grouting connecting steel bars (9) inside, and four groups of grouting connecting steel bars (9) are provided.

7. The self-heating device for winter grouting of an assembled structure according to claim 1, characterized in that: A temperature control box (10) is provided at the left end of the wall side mold (2), and the temperature control box (10) and the electric heating (304) are electrically connected.

8. The self-heating device for winter grouting of an assembled structure according to claim 1, characterized in that: A threaded connection piece (4) is provided at the front end of the wall side form (2), and an observation hole (11) is provided in the middle of the wall side form (2).

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