Reinforcing device for synchronous pouring of structural expansion joint double-column concrete

Abstract

The utility model relates to the technical field of civil engineering construction, in particular to a reinforcing device for synchronous pouring of structural expansion joint double-column concrete. The concrete column comprises two supporting formworks which are adjacently arranged in parallel and a concrete column body poured in the two supporting formworks, an expansion joint is arranged between the two supporting formworks, and the concrete column further comprises a reinforcing assembly installed on the two supporting formworks. The reinforcing assembly comprises a mounting part and an inner partition plate, the mounting part is vertically arranged, one side wall of the mounting part is attached to the same side walls of the two supporting formworks, the inner partition plate is perpendicular to the mounting part, the inner partition plate penetrates through the mounting part to be arranged in the expansion joint, and the inner partition plate is detachably connected with the mounting part. By arranging the mounting part and the inner partition plate, two concrete columns can be poured at the same time, the pouring quality is improved, mounting and dismounting are easy, the construction cost and time are reduced, the consistency and accuracy of the pouring quality are guaranteed, and the forming effect of the concrete columns is better.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering construction, in particular to a reinforcement device used for synchronous pouring of double-column concrete of a structural expansion joint. Background Art

[0002] With the continuous development of my country's industrial sector, the scale of industrial enterprises continues to expand. New industrial parks have put forward higher and higher requirements for enterprise factory building construction. The scale of industrial plants is also getting larger and larger. The scale of large public buildings and joint industrial plants has grown from tens of thousands of square meters to hundreds of thousands of square meters. Large industrial plant structures continue to emerge and their longitudinal lengths far exceed the regulatory limits.

[0003] In order to avoid cracks and damage to the structure, roof or wall due to excessive uneven settlement of the foundation, expansion joints should be set in accordance with relevant specifications during structural design to divide the building into several parts. Industrial plants with concrete frame structures usually have double columns, and the gap between the two columns is generally around 80 to 120 mm.

[0004] However, in the prior art, the common formwork method is to formwork the double columns separately and independently, first formwork and cast one side column, then formwork and cast the other side column after removing the formwork. This makes it impossible to cast concrete at the same time, and it is also difficult to ensure the consistency and accuracy of the casting quality, resulting in poor concrete molding effect, difficulty in installation and removal, and increased construction cost and time. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a reinforcement device for the simultaneous pouring of concrete of double columns of structural expansion joints, which solves the technical problems that the double columns are currently separated and independently supported by formwork, one side column is first supported by formwork, and then the other side column is supported by formwork after the formwork is removed, which makes it impossible to pour concrete simultaneously and it is also difficult to ensure the consistency and accuracy of the pouring quality, thus resulting in poor concrete molding effect, difficulty in installation and removal, and increased construction cost and time.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] The utility model provides a reinforcement device for synchronously pouring concrete of double columns of a structural expansion joint, comprising two adjacent and parallel supporting formworks and concrete columns poured in the two supporting formworks, an expansion joint is arranged between the two supporting formworks, and also comprising a reinforcement component installed on the two supporting formworks; the reinforcement component comprises a mounting portion and an inner partition plate, the mounting portion is vertically arranged, a side wall of the mounting portion is fitted with the same side walls of the two supporting formworks, the inner partition plate is perpendicular to the mounting portion and the inner partition plate passes through the mounting portion and is placed in the expansion joint, and the inner partition plate is detachably connected to the mounting portion.

[0010] Preferably, the mounting portion comprises two groups of mounting components, the two groups of mounting components are respectively located on the two side walls of the two formworks close to the expansion joint and the side walls on the opposite sides of the two groups of mounting components are in contact with the two side walls of the formworks, the inner partition is located between the two groups of mounting components and the inner partition is placed on the two side walls of the expansion joint so as to abut against the side walls on the opposite sides of the two formworks to cast the concrete column from the top of the two formworks.

[0011] Preferably, the mounting assembly comprises a first support column and a second support column; one side wall of the first support column and the second support column on the same side are respectively fitted with the same side walls of the two supporting forms; grooves are provided on the side walls on the opposite sides of the first support column and the second support column, and the two side walls of the inner partition are placed in the grooves so that the inner partition can be clamped in the first support column and the second support column.

[0012] Preferably, the inner partitions are provided in plurality and are arranged in parallel with intervals along the vertical direction of the first support column and the second support column, and the grooves are provided in plurality and correspond one-to-one to the inner partitions.

[0013] Preferably, the vertical intervals of the plurality of inner partitions are the same.

[0014] Preferably, the inner partition is an I-shaped galvanized steel plate and the T-shaped outer edge of the I-shaped galvanized steel plate is placed in the groove, and there is a gap between the T-shaped outer edge and the inner wall of the groove.

[0015] Preferably, the length of the inner partition is in the range of 1.2 meters to 1.5 meters.

[0016] Preferably, the tops and bottoms of the first support column and the second support column are detachably connected by bolts and nuts, respectively.

[0017] Preferably, it also includes multiple third support columns and square and round buckles; the multiple third support columns are vertically arranged and are arranged in parallel and at intervals along the outer walls of the two formworks away from the interval, and the third support column is close to a side wall of the formwork and is in contact with the formwork; the square and round buckles are perpendicular to the third support columns and the square and round buckles are clamped on the outer walls of the multiple third support columns away from the formwork to tighten the multiple third support columns.

[0018] Preferably, the square-circular buckles are provided in plurality and the plurality of square-circular buckles are arranged vertically parallel and at intervals along the third supporting column.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model is a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint. By setting a mounting part and an inner partition, it can connect two formworks in series, so that after pouring, the inner partition can convert the lateral stress of the two formworks into a horizontal component force and check each other, so that the two formworks are always in a vertical state, thereby realizing the simultaneous pouring of two concrete columns. The mounting part and the inner partition are detachably connected, which can realize convenient disassembly and assembly, shorten the construction time, and can also be reused to save resources. By placing the inner partition in the expansion joint and then fixing the inner partition through the mounting part, it can ensure the consistency and accuracy of the pouring quality of the concrete column, ensure the vertical pouring of the concrete column, avoid the skewness of the formed concrete column due to the concrete being a fluid during pouring, and thus improve the pouring quality of the concrete column. The utility model can pour two concrete columns at the same time by setting a mounting part and an inner partition, improve the pouring quality, easy to install and disassemble, reduce construction cost and time, ensure the consistency and accuracy of the pouring quality, and make the forming effect of the concrete column better.

[0022] 2. The utility model is a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint. By setting two sets of installation components, and the two sets of installation components are fitted with two formworks, the installation components can be more stable when supporting the formwork, avoiding the formwork from being skewed, and at the same time avoiding the low pouring quality of the concrete column when pouring concrete. The installation components include a first support column and a second support column, which can be equivalent to two secondary keels, that is, further supporting the formwork, thereby ensuring more accurate pouring of the concrete column, improving the pouring quality of the concrete column, and at the same time supporting the concrete column more stably.

[0023] 3. The utility model is a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint. By setting a plurality of inner baffles, it is possible to divide the lateral pressure of two formworks into a plurality of component forces, which are borne by the plurality of inner baffles, so that the two formworks can be more stable when supporting two concrete columns, and avoid the concrete columns from tilting. By making the vertical spacing of the plurality of inner baffles the same, the plurality of inner baffles can more evenly convert the lateral pressure of multiple positions of the formwork into component forces and check and balance each other, so that the two formworks are more stable when supporting two concrete columns and are less likely to tilt.

[0024] 4. The utility model is a reinforcement device for synchronous pouring of double-column concrete of structural expansion joints. By setting the inner partition as an I-shaped galvanized steel plate, it has the advantages of strong corrosion resistance, good plastic toughness, high strength, flexible installation, and long service life, so that the inner partition can be used for a longer time so that it can be reused. There is a gap between the T-shaped outer edge of the inner partition and the inner wall of the groove, which can make the inner partition more convenient to move when inserted in the groove, so that the installation of the inner partition is more flexible and avoids the situation of jamming when the inner partition is installed.

[0025] 5. The utility model is a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint. By setting the length range of the inner partition to between 1.2 meters and 1.5 meters, it can be more suitable for supporting concrete columns of different sizes, making the inner partition more adaptable and reusable. By detachably connecting the first support column and the second support column by bolts and nuts, it can make the first support column and the second support column more convenient and quick to install and disassemble. Moreover, the bolts and nuts can also tighten the first support column and the second support column to prevent the inner partition from moving between the first support column and the second support column.

[0026] 6. The utility model is a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint. By providing a plurality of third support columns and square and round buckles, the plurality of third support columns can provide all-round support to the two formworks, so that the two formworks are always in a vertical and parallel state, further ensuring the improvement of the pouring quality of the concrete column. The square and round buckles are used to clamp the plurality of third support columns, so that the support of the two formworks is more stable. By providing a plurality of square and round buckles, the square and round buckles can be made more stable when clamping the plurality of third support columns, ensuring that the plurality of third support columns are always in a vertical state, avoiding the tilting of the plurality of third support columns due to gravity caused by the concrete column being too high, further improving the accuracy and quality of concrete pouring, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint according to the utility model;

[0028] Figure 2 It is a schematic diagram of the overall three-dimensional structure of two sets of mounting components and inner partition installation of a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint according to the utility model;

[0029] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the installation assembly of a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint according to the utility model;

[0030] Figure 4 It is an overall three-dimensional schematic diagram of an inner partition of a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint according to the utility model.

[0031] [Description of Reference Numerals]

[0032] 1: formwork; 2: concrete column; 3: reinforcement assembly; 31: installation part; 311: installation assembly; 3111: first support column; 3112: second support column; 32: inner partition; 33: bolt; 34: nut; 4: third support column; 5: square and round buckle. DETAILED DESCRIPTION

[0033] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0034] Embodiment 1

[0035] like Figure 1-Figure 4 As shown, a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint in this embodiment includes two adjacent parallel formworks 1 and concrete columns 2 cast in the two formworks 1, an expansion joint is provided between the two formworks 1, and also includes a reinforcement component 3 installed on the two formworks 1.

[0036] Specifically, the reinforcement assembly 3 includes a mounting portion 31 and an inner partition 32. The mounting portion 31 is arranged vertically, and one side wall of the mounting portion 31 is in contact with the same side wall of the two formworks 1. The inner partition 32 is perpendicular to the mounting portion 31 and passes through the mounting portion 31 and is placed in the expansion joint. The inner partition 32 is detachably connected to the mounting portion 31. By providing the mounting portion 31 and the inner partition 32, the two formworks 1 can be connected in series, so that after pouring, the inner partition 32 can convert the lateral stress of the two formworks 1 into horizontal components and balance each other, so that the two formworks 1 are always in a vertical state, thereby realizing the simultaneous pouring of two concrete columns 2. The mounting portion 31 and the inner partition 32 are detachably connected, which can facilitate disassembly and assembly, shorten construction time, and can also be reused to save resources. By placing the inner partition 32 in the expansion joint and then fixing the inner partition 32 through the mounting portion 31, it is possible to ensure the consistency and accuracy of the casting quality of the concrete column 2, ensure that the concrete column 2 is cast vertically, and avoid the concrete column 2 being skewed after casting due to the concrete being a fluid, thereby improving the casting quality of the concrete column 2.

[0037] Furthermore, the mounting portion 31 includes two groups of mounting components 311, which are respectively located on the two side walls of the two support forms 1 near the expansion joint, and the side walls on the opposite sides of the two groups of mounting components 311 are in contact with the side walls of the support forms 1. The inner partition 32 is located between the two groups of mounting components 311, and the inner partition 32 is placed on the two side walls of the expansion joint and can abut against the side walls on the opposite sides of the two support forms 1, so as to cast the concrete column 2 from the top of the two support forms 1, which can make the mounting components 311 more stable when supporting the support forms 1, avoid the support forms 1 from being skewed, and avoid the low casting quality of the concrete column 2 when the concrete is cast. In addition, by abutting the side walls of the inner partition 32 with the side walls on the opposite sides of the two support forms 1, it can be realized that after casting, the inner partition 32 can convert the lateral stress of the two support forms 1 into a horizontal component force and balance each other, so that the two support forms 1 are always in a vertical state, thereby realizing the simultaneous casting of the two concrete columns 2.

[0038] Furthermore, the installation assembly 311 includes a first support column 3111 and a second support column 3112. One side wall of the first support column 3111 and the second support column 3112 on the same side are respectively fitted with the same side wall of the two formworks 1, which can be equivalent to two secondary keels, that is, further support for the formwork 1, thereby ensuring more precision when pouring the concrete column 2, improving the pouring quality of the concrete column 2, and providing more stable support for the concrete column 2. Grooves are provided on the side walls on the opposite sides of the first support column 3111 and the second support column 3112, and the two side walls of the inner partition 32 are placed in the grooves so that the inner partition 32 is clamped in the first support column 3111 and the second support column 3112, so that when installing the inner partition 32, it is only necessary to clamp the two side walls of the inner partition 32 in the grooves, and the installation operation is simple and convenient for disassembly and assembly.

[0039] Furthermore, a plurality of inner baffles 32 are provided, and the plurality of inner baffles 32 are arranged in parallel with intervals along the vertical direction of the first support column 3111 and the second support column 3112, and a plurality of grooves are provided, and the plurality of grooves correspond one to one with the plurality of inner baffles 32. By providing a plurality of inner baffles 32, it is possible to divide the lateral pressure of the two formworks 1 into a plurality of component forces, which are borne by the plurality of inner baffles 32, so that the two formworks 1 can be more stable when supporting the two concrete columns 2, and the concrete columns 2 can be prevented from being skewed. Preferably, the vertical intervals of the plurality of inner baffles 32 are the same, which can enable the plurality of inner baffles 32 to more evenly convert the lateral pressure of multiple positions of the formwork 1 into component forces and check and balance each other, so that the two formworks 1 can be more stable when supporting the two concrete columns 2, and less likely to be skewed.

[0040] Furthermore, the inner partition 32 is an I-shaped galvanized steel plate and the T-shaped outer edge of the I-shaped galvanized steel plate is placed in the groove. The I-shaped galvanized steel plate has the advantages of strong corrosion resistance, good plastic toughness, high strength, flexible installation, and long service life, so that the inner partition 32 can be used for a longer time so that it can be reused. There is a gap between the T-shaped outer edge and the inner wall of the groove, which can make the inner partition 32 more convenient to move when inserted into the groove, so that the installation of the inner partition 32 is more flexible and avoids the situation where the inner partition 32 is stuck during installation.

[0041] Furthermore, the length of the inner baffle 32 ranges from 1.2 meters to 1.5 meters, which can be more suitable for supporting concrete columns 2 of different sizes, making the inner baffle 32 more adaptable and reusable. Preferably, the width of the T-shaped outer edge is smaller than the width of the groove, so that the inner baffle 32 can be easily installed and not easily stuck. During installation, the spacing between two adjacent inner baffles 32 is changed according to the height of the concrete column 2, such as 100mm, 200mm, 300mm, etc. The larger the concrete column 2, the smaller the spacing between the inner baffles 32, so as to avoid the two formworks 1 from tilting when pouring concrete.

[0042] Furthermore, the top and bottom of the first support column 3111 and the second support column 3112 are detachably connected by bolts 33 and nuts 34 respectively, which can make the first support column 3111 and the second support column 3112 more convenient and quick to install and disassemble. Moreover, the bolts 33 and nuts 34 can also tighten the first support column 3111 and the second support column 3112 to prevent the inner partition 32 from moving between the first support column 3111 and the second support column 3112.

[0043] Furthermore, a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint in this embodiment also includes a plurality of third support columns 4 and square and round buckles 5.

[0044] Specifically, a plurality of third support columns 4 are arranged vertically and parallel to and spaced from the outer walls of the two formworks 1 away from the interval, and a side wall of the third support column 4 close to the formwork 1 is in contact with the formwork 1. The plurality of third support columns 4 can support the two formworks 1 in all directions, so that the two formworks 1 are always in a vertical and parallel state, further ensuring the improvement of the casting quality of the concrete column 2. The square and round buckle 5 is perpendicular to the third support column 4 and is clamped on the outer wall of the plurality of third support columns 4 away from the formwork 1, and is used to clamp the plurality of third support columns 4, so that the support of the two formworks 1 is more stable. Preferably, the square and round buckle 5 is provided in plurality and the plurality of square and round buckles 5 are arranged vertically parallel to and spaced from the third support column 4, which can make the square and round buckle 5 more stable when clamping the plurality of third support columns 4, ensuring that the plurality of third support columns 4 are always in a vertical state, avoiding the tilt of the plurality of third support columns 4 due to gravity due to the excessive height of the concrete column 2, further improving the accuracy and quality of concrete casting, and improving safety.

[0045] Through the above structure, the construction principle of a reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint in this embodiment is:

[0046] First, the steel bars are tied at the positions of the two uncast concrete columns 2. After the steel bars are tied and accepted, the formwork 1 is vertically installed on the periphery of the steel bars according to the on-site construction measurement control line. After the formwork 1 is installed, the inner partition 32 is vertically installed at the expansion joint between the two formworks 1. The width of the inner partition 32 is the same as the spacing between the two grooves on the first support column 3111 and the second support column 3112. After the inner partition 32 is installed, the two groups of the first support column 3111 and the second support column 3112 are installed on the side walls of the two formworks 1 and fit together. At this time, each inner partition 32 corresponds to two grooves on the same plane, and the first support column 3111 and the second support column 3112 are fixed with bolts 33 and nuts 34 to fix multiple inner partitions 32. Repeat the above operation until the inner partition 32 is installed to the top of the formwork 1 at the expansion joint. After all the inner partitions 32 are installed, a plurality of third support columns 4 are arranged on the outer walls of the two formworks 1 and fit with the outer walls of the two formworks 1. Then, a plurality of square and round buckles 5 are installed in sequence from bottom to top to tighten and fix the plurality of third support columns 4. After the square and round buckles 5 are fixed, diagonal braces are set around the two formworks 1, and then concrete is poured into the two formworks 1 at the same time. The pouring must be done in a uniform and symmetrical manner at both ends so that the two formworks 1 are evenly stressed. After the concrete is poured, it is air-dried to form a concrete column 2. When the concrete column 2 reaches the demolding strength, the square and round buckles 5 are first removed, and then the plurality of third support columns 4, the first support column 3111, the second support column 3112 and the inner partitions 32 are removed in sequence to complete the pouring and forming of the concrete column 2.

[0047] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0050] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A reinforcement device for synchronously pouring concrete of double columns of a structural expansion joint, comprising two adjacent parallel formworks (1) and a concrete column (2) poured in the two formworks (1), wherein an expansion joint is provided between the two formworks (1), characterized in that: It also includes a reinforcement component (3) installed on the two support forms (1); The reinforcement component (3) comprises a mounting portion (31) and an inner partition (32); the mounting portion (31) is arranged vertically; one side wall of the mounting portion (31) is in contact with the same side wall of the two supporting forms (1); the inner partition (32) is perpendicular to the mounting portion (31) and passes through the mounting portion (31) to be placed in the expansion joint; the inner partition (32) is detachably connected to the mounting portion (31).

2. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 1, characterized in that: The mounting portion (31) comprises two groups of mounting components (311), the two groups of mounting components (311) are respectively located on the two side walls of the two formworks (1) close to the expansion joint, and the side walls on the opposite sides of the two groups of mounting components (311) are in contact with the side walls of the formworks (1), the inner partition plate (32) is located between the two groups of mounting components (311), and the inner partition plate (32) is placed on the two side walls of the expansion joint so as to abut against the side walls on the opposite sides of the two formworks (1), so as to cast the concrete column (2) from the top of the two formworks (1).

3. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 2, characterized in that: The mounting assembly (311) comprises a first supporting column (3111) and a second supporting column (3112); One side wall of the first supporting column (3111) and the second supporting column (3112) on the same side are respectively fitted with the same side walls of the two supporting forms (1); Grooves are provided on the side walls on the opposite sides of the first support column (3111) and the second support column (3112), and the two side walls of the inner partition (32) are placed in the grooves so that the inner partition (32) is snap-fitted into the first support column (3111) and the second support column (3112).

4. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 3, characterized in that: There are multiple inner partitions (32), and the multiple inner partitions (32) are arranged in parallel and at intervals along the vertical direction of the first support column (3111) and the second support column (3112); there are multiple grooves, and the multiple grooves correspond one-to-one to the multiple inner partitions (32).

5. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 4, characterized in that: The vertical intervals of the plurality of inner partitions (32) are the same.

6. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 5, characterized in that: The inner partition plate (32) is an I-shaped galvanized steel plate, and the T-shaped outer edge of the I-shaped galvanized steel plate is placed in the groove, and there is a gap between the T-shaped outer edge and the inner wall of the groove.

7. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 6, characterized in that: The length of the inner partition (32) ranges from 1.2 meters to 1.5 meters.

8. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 3, characterized in that: The top and bottom of the first support column (3111) and the second support column (3112) are detachably connected via bolts (33) and nuts (34), respectively.

9. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 5, characterized in that: It also includes a plurality of third support columns (4) and square and round buckles (5); The plurality of third support columns (4) are arranged vertically and are arranged in parallel and at intervals along the outer walls of the two support forms (1) away from the interval, and the third support columns (4) are close to a side wall of the support form (1) and are in contact with the support form (1); The square buckle (5) is perpendicular to the third support column (4) and the square buckle (5) is clamped on the outer wall of the plurality of third support columns (4) away from the support formwork (1) to clamp the plurality of third support columns (4).

10. A reinforcement device for synchronous pouring of double-column concrete of a structural expansion joint as claimed in claim 9, characterized in that: The square and round buckles (5) are provided in plurality and the square and round buckles (5) are arranged vertically parallel and at intervals along the third support column (4).

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