Angle-adjustable box girder diaphragm formwork

Abstract

The application provides a box girder diaphragm formwork capable of adjusting an angle, and belongs to the technical field of adjustable box girder formworks; at least comprises a first box girder side wall formwork, a second box girder side wall formwork, a first diaphragm formwork and a second diaphragm formwork; the first box girder side wall formwork and the second box girder side wall formwork are used for being respectively arranged on both sides of the diaphragm and being attached to the outer side walls of the box girder; the first diaphragm formwork and the second diaphragm formwork are arranged in opposite parallel modes and are used for forming two side walls of the diaphragm; the first diaphragm formwork is rotatably connected with the first box girder side wall formwork; the second diaphragm formwork is rotatably connected with the second box girder side wall formwork; further comprising a first state conversion structure movably arranged on the top of the first box girder side wall formwork and the first diaphragm formwork, and a second state conversion structure movably arranged on the top of the second box girder side wall formwork and the second diaphragm formwork; and the technical problem that the existing box girder diaphragm formwork cannot better adapt to the angle change of the box girder diaphragm is solved.

Description

Technical Field

[0001] This invention belongs to the field of adjustable box girder formwork technology, specifically relating to an adjustable angle box girder diaphragm formwork. Background Technology

[0002] Small box girders are a common structural form in bridge engineering. Their cross-section includes a top plate, web, bottom plate, flanges, and a cavity. Multiple small box girders form a highway bridge, connected by diaphragms. Small box girders are widely used in bridge engineering, including highway bridges, railway bridges, municipal bridges, and special-purpose bridges.

[0003] Existing small box girder top view as follows Figure 1 As shown, the box girder 1 has an inclination angle α at both ends, and the value of the inclination angle α is between -45° and 45°. Correspondingly, the construction requirement for the transverse diaphragms 2 on both sides of the box girder is that they need to be poured parallel to the ends of the box girder 1.

[0004] The existing formwork for casting transverse diaphragms involves fabricating multiple sets of formwork based on the inclination angle of the box girder ends. During construction, different inclination angles are selected for casting different types of box girders. However, fabricating multiple sets of formwork significantly increases processing costs and presents numerous inconveniences in storage and transportation. Furthermore, processing errors are unavoidable during the standard fabrication process. These errors can result in transverse diaphragms not being parallel to the box girder ends, reducing construction quality. Improving processing precision to reduce these errors inevitably increases processing costs.

[0005] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustable-angle box girder diaphragm template to solve the technical problems of high processing cost, inconvenient storage and transportation, and errors in the processing of existing box girder diaphragm templates.

[0007] To achieve the above objectives, the adjustable-angle box girder diaphragm template of the present invention provides the following technical solution:

[0008] An adjustable-angle box girder diaphragm template includes at least a first box girder sidewall template, a second box girder sidewall template, a first diaphragm template, and a second diaphragm template. The first and second box girder sidewall templates are respectively attached to the outer sidewall of the box girder on both sides of the diaphragm or used to form the outer sidewall of the box girder. The first and second diaphragm templates are arranged parallel to each other to form two sidewalls of the diaphragm. The first and second diaphragm templates are rotatably connected to each other. The adjustable-angle box girder diaphragm template further includes a first state transition structure movably disposed on the top of the first and second box girder sidewall templates and a second state transition structure movably disposed on the top of the second and second box girder sidewall templates. The first state transition structure ensures a sealed connection between the first and second box girder sidewall templates when the first diaphragm template rotates; the second state transition structure ensures a sealed connection between the second and second box girder sidewall templates when the second diaphragm template rotates.

[0009] As a further optimized technical solution, both the first box girder sidewall template and the second box girder sidewall template include vertical sections, and the tops of the two vertical sections are integrally fixedly connected to horizontal sections. The horizontal sections bend and extend away from the top of the corresponding vertical sections in a direction away from the box girder.

[0010] As a further optimized technical solution, the edges of the transverse portion near the diaphragm are gradually moved away from the diaphragm from the inside out; the top edges of the first diaphragm template and the second diaphragm template are gradually inclined downward from the inside out.

[0011] As a further optimized technical solution, the first state transition structure and the second state transition structure respectively include a horizontal baffle and a vertical baffle that rotate and cooperate with each other. The horizontal baffle and the vertical baffle are both corner plates with a apex angle, and the edges of the horizontal baffle and the vertical baffle that rotate and cooperate are aligned at one end.

[0012] As a further optimized technical solution, the horizontal baffle and the vertical baffle can be triangular or fan-shaped.

[0013] As a further optimized technical solution, the apex angles of both the horizontal baffle and the vertical baffle are less than 90°.

[0014] As a further optimized technical solution, the transverse baffles of the first state transition structure and the second state transition structure are respectively set on the top surface of the transverse portions of the first box girder side wall template and the second box girder side wall template, and the transverse baffles are slidably engaged with the corresponding transverse portions; the vertical baffles of the first state transition structure and the second state transition structure are respectively set on the outside of the first transverse diaphragm template and the second transverse diaphragm template and press the first transverse diaphragm template and the second transverse diaphragm template tightly.

[0015] As a further optimized technical solution, the first transverse diaphragm template and the first box girder side wall template, as well as the second transverse diaphragm template and the second box girder side wall template, are rotatably connected by a first hinge shaft, and the transverse baffle and vertical baffle of the first state transition structure and the second state transition structure are rotatably connected by a second hinge shaft.

[0016] As a further optimized technical solution, the end of the second hinge shaft of the first state transition structure near the side wall of the box girder is movably connected to the top of the first hinge shaft between the first diaphragm template and the side wall template of the first box girder; the end of the second hinge shaft of the second state transition structure near the side wall of the box girder is movably connected to the top of the first hinge shaft between the second diaphragm template and the side wall template of the second box girder.

[0017] As a further optimized technical solution, the rotation range of the first diaphragm template and the second diaphragm template is approximately -45° to 45°.

[0018] Beneficial effects: The first box girder sidewall template and the second box girder sidewall template of the present invention are installed on both sides of the transverse diaphragm and are close to the outer sidewall of the box girder. Then, by rotatably connecting the first transverse diaphragm template to the first box girder sidewall template and the second transverse diaphragm template to the second box girder sidewall template, the first transverse diaphragm template and the second transverse diaphragm template can be rotated according to the inclination angle of the box girder end, so that they reach a state parallel to the box girder end, and then the subsequent pouring process is carried out. By setting the first state conversion structure and the second state conversion structure, the first transverse diaphragm template and the first box girder sidewall template and the second transverse diaphragm template and the second box girder sidewall template can be sealed together, thereby ensuring that the first transverse diaphragm template and the second transverse diaphragm template can still form a sealed pouring chamber after rotation, so as to ensure the pouring quality of the transverse diaphragm. By using the technical solution of this invention, it is not necessary to process multiple sets of templates; only one set needs to be processed. On-site adjustments can be made flexibly according to different needs, which not only saves a lot of production materials and reduces construction costs, but also saves a lot of storage space and facilitates transportation. In addition, since the first transverse diaphragm template and the first box girder side wall template, as well as the second transverse diaphragm template and the second box girder side wall template, can be easily rotated and adjusted, there is no need to consider the processing error of the tilt angle, thereby ensuring the construction quality.

[0019] In addition, the side wall formwork of the first box girder and the side wall formwork of the second box girder can be moved along the length extension direction of the box girder (i.e., longitudinal direction) as needed, thereby adjusting the position and width of the transverse diaphragm. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein:

[0021] Figure 1 This is a top view of a box girder in the prior art;

[0022] Figure 2 This is a reference diagram showing the usage state of an adjustable-angle box girder diaphragm template according to an embodiment of the present invention;

[0023] Figure 3 This is a perspective view of an adjustable-angle box girder diaphragm template according to an embodiment of the present invention;

[0024] Figure 4 Another perspective view of an adjustable-angle box girder diaphragm template according to an embodiment of the present invention.

[0025] In the diagram: 1. Box girder; 2. Diaphragm; 3. First box girder sidewall formwork (where 301 is the vertical portion of the first box girder sidewall formwork, and 302 is the horizontal portion of the first box girder sidewall formwork); 4. Second box girder sidewall formwork (where 401 is the vertical portion of the second box girder sidewall formwork, and 402 is the horizontal portion of the second box girder sidewall formwork); 5. First diaphragm formwork; 6. Second diaphragm formwork; 7. First state transition structure (where 701 is the horizontal baffle of the first state transition structure, and 702 is the vertical portion of the first state transition structure); 8. Second state transition structure (where 801 is the horizontal baffle of the second state transition structure, and 802 is the vertical portion of the second state transition structure); 9. First hinge shaft; 10. Second hinge shaft. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0027] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] Example 1 of an adjustable-angle box girder diaphragm formwork:

[0030] This invention provides an adjustable box girder diaphragm template. By rotating the first and second diaphragm templates, the inclination angle of the box girder diaphragm templates can be adjusted to cast diaphragms that meet the construction requirements of the parallel box girder ends. Compared with the prior art, it eliminates the need to process multiple sets of templates, effectively reducing production costs, greatly facilitating storage and transportation, and effectively ensuring construction quality.

[0031] Specifically, such as Figure 2 As shown, the adjustable-angle box girder diaphragm template includes at least a first box girder sidewall template 3, a second box girder sidewall template 4, a first diaphragm template 5, a second diaphragm template 6, a first state transition structure 7, and a second state transition structure 8. The first box girder sidewall template 3 and the second box girder sidewall template 4 are respectively installed on both sides of the diaphragm 2 and attached to the outer wall of the box girder 1. It should be noted that during the construction of the diaphragm, the box girder 1 can be prefabricated or cast together with the diaphragm 2. When the box girder 1 is prefabricated, the first box girder sidewall template 3 and the second box girder sidewall template 4 are installed and fixed on the outer wall of the box girder 1. When the box girder 1 and the diaphragm 2 need to be cast together, the first box girder sidewall template 3 and the second box girder sidewall template 4 are spliced ​​with other box girder templates to form the inner cavity of the cast box girder 1. In this case, the first box girder sidewall template 3 and the second box girder sidewall template 4 form the outer wall of the box girder.

[0032] Furthermore, the reason why it is said here that the box girder transverse diaphragm template with adjustable angle includes at least the above components is that the template used for casting transverse diaphragm 2 also needs to include a side template (not shown in the figure) set between the first transverse diaphragm template 5 and the second transverse diaphragm template 6 to form the front side wall of transverse diaphragm 2. However, in this invention, the side template in this position is not technically adjusted. After assembling all the above components and adjusting the angle of the transverse diaphragm 2 to be cast, the side template is fixed between the first transverse diaphragm template 5 and the second transverse diaphragm template 6.

[0033] The first transverse diaphragm template 5 and the second transverse diaphragm template 6 are arranged parallel to each other to form the two side walls of the transverse diaphragm 2. The first transverse diaphragm template 5 is rotatably connected to the first box girder side wall template 3, and the second transverse diaphragm template 6 is rotatably connected to the second box girder side wall template 4. The first state transition structure 7 is movably set on top of the first box girder side wall template 3 and the first transverse diaphragm template 5, and the second state transition structure 8 is movably set on top of the second box girder side wall template 4 and the second transverse diaphragm template 6. The first state transition structure 7 is used to ensure a sealed connection between the first transverse diaphragm template 5 and the first box girder side wall template 3 when the first transverse diaphragm template 5 rotates, thereby preventing grout leakage when pouring the transverse diaphragm 2 after rotation. The second state transition structure 8 is used to ensure a sealed connection between the second transverse diaphragm template 6 and the second box girder side wall template 4 when the second transverse diaphragm template 6 rotates, also preventing grout leakage when pouring the transverse diaphragm 2 after rotation.

[0034] like Figure 3 , Figure 4 As shown, the first box girder sidewall template 3 includes an integrally fixed vertical portion 301 and a horizontal portion 302. The horizontal portion 302 extends from the top of the vertical portion 301 in a direction away from the box girder 1. It should be noted that "bending" means that the horizontal portion 302 and the vertical portion 301 have an angle, which is intended to adapt to the external shape of the box girder 1. In this way, the horizontal portion 302 is used to fit tightly against the bottom surface of the upper plate of the box girder 1 or to form the bottom surface of the upper plate of the box girder 1. In addition, the edge of the horizontal portion 302 near the diaphragm 2 is gradually moved away from the diaphragm 2 from the inside out; the top edge of the first diaphragm template 5 is gradually inclined downward from the inside out. In this way, notches are formed on both the horizontal portion 302 and the first diaphragm template 5, which facilitates the installation of the first state transition structure 7, and the first box girder sidewall template 3 and the first diaphragm template 5 are not prone to interference during rotation, ensuring the convenience of adjustment.

[0035] Similarly, the second box girder sidewall template 4 includes an integrally fixed vertical portion 401 and a horizontal portion 402. The horizontal portion 402 extends from the top of the vertical portion 401 in a direction away from the box girder 1. It should be noted that "bending" means that the horizontal portion 402 has an angle with the vertical portion 401, which is intended to adapt to the external shape of the box girder 1. The horizontal portion 402 is used to fit against the bottom surface of the upper plate of the box girder 1 or to form the bottom surface of the upper plate of the box girder 1. In addition, the edge of the horizontal portion 402 near the diaphragm 2 is gradually moved away from the diaphragm 2 from the inside out; the top edge of the second diaphragm template 6 is gradually inclined downward from the inside out. In this way, notches are formed on both the horizontal portion 402 and the second diaphragm template 6, which facilitates the installation of the second state transition structure 8, and the second box girder sidewall template 4 and the second diaphragm template 6 are not prone to interference during rotation, ensuring ease of adjustment.

[0036] In this embodiment, the first state transition structure 7 includes a horizontal baffle 701 and a vertical baffle 702 that rotate and cooperate with each other. Both the horizontal baffle 701 and the vertical baffle 702 are corner plates with apex angles. Here, the corner plate shape refers to a shape with two intersecting edges forming an included angle. The shape between the two edges is not particularly limited; it can be a broken line or an arc. This invention uses an arc, and a regular arc. Therefore, both the horizontal baffle 701 and the vertical baffle 702 are fan-shaped. In other embodiments, the horizontal baffle 701 and the vertical baffle 702 can also be triangular, or one can be fan-shaped and the other triangular, as long as the horizontal baffle 701 can cover the notch of the horizontal portion 302 and the vertical baffle 702 can cover the notch of the first horizontal baffle template 5 during the rotation of the first horizontal partition template 5. The edges of the horizontal baffle 701 and the vertical baffle 702 that rotate and cooperate are aligned at one end, that is, the apex angles are aligned, which facilitates installation and makes it easy to ensure a seal. In addition, the thickness of the horizontal baffle 701 and the vertical baffle 702 of the first state transition structure 7 is 3mm. As a result, the step surface formed by the contact between the first state transition structure 7 and the first horizontal diaphragm template 5 and the first box girder side wall template 3 is very small. After the horizontal diaphragm is poured, the step surface can be smoothed with sandpaper without affecting the appearance of the horizontal diaphragm.

[0037] Similarly, the second state transition structure 8 includes a horizontal baffle 801 and a vertical baffle 802 that rotate and cooperate with each other. Both the horizontal baffle 801 and the vertical baffle 802 are corner plates with apex angles. Here, corner plate shape refers to a shape with two intersecting edges forming an included angle. The shape between the two edges is not particularly limited; it can be a broken line or an arc. This invention uses an arc, and a regular arc. Therefore, both the horizontal baffle 801 and the vertical baffle 802 are fan-shaped. In other embodiments, the horizontal baffle 801 and the vertical baffle 802 can also be triangular, or one can be fan-shaped and the other triangular, as long as the horizontal baffle 801 can cover the notch of the horizontal portion 402 and the vertical baffle 802 can cover the notch of the second horizontal baffle template 6 during the rotation of the second horizontal partition template 6. The edges of the horizontal baffle 801 and the vertical baffle 802 that rotate and cooperate are aligned at one end, that is, the apex angles are aligned, which facilitates installation and makes it easy to ensure a seal. In addition, the thickness of the horizontal baffle 801 and the vertical baffle 802 of the second state transition structure 8 is 3mm. As a result, the step surface formed by the contact between the second state transition structure 8 and the second diaphragm template 6 and the second box girder side wall template 4 is very small. After the diaphragm is poured, the step surface can be sanded smooth without affecting the appearance of the diaphragm.

[0038] To avoid motion interference, the apex angles of the two horizontal baffles 701 and 801 and the vertical baffles 702 and 802 are all less than 90°, as long as they can cover the corresponding gaps.

[0039] In this embodiment, the transverse baffle 701 of the first state transition structure 7 is disposed on the top surface of the transverse portion 302 of the first box girder side wall template 3, and the transverse baffle 701 is slidably engaged with the transverse portion 302; the vertical baffle 702 of the first state transition structure 7 is disposed on the outside of the first diaphragm template 5 and presses the first diaphragm template 5.

[0040] Similarly, the transverse baffle 801 of the second state transition structure 8 is provided on the top surface of the transverse portion 402 of the second box girder side wall template 4, and the transverse baffle 801 is slidably engaged with the corresponding transverse portion 402; the vertical baffle 802 of the second state transition structure 8 is provided on the outside of the second diaphragm template 6 and presses the second diaphragm template 6.

[0041] In this embodiment, the first transverse diaphragm template 5 and the first box girder side wall template 3, as well as the second transverse diaphragm template 6 and the second box girder side wall template 4, are rotatably connected by a first hinge shaft 9. The transverse baffles 701 and 801 and the vertical baffles 702 and 802 of the first state transition structure 7 and the second state transition structure 8 are rotatably connected by a second hinge shaft 10.

[0042] The end of the second hinge shaft 10 of the first state transition structure 7 near the side wall of the box girder 1 is hinged to the top of the first hinge shaft 9 between the first diaphragm template 5 and the first box girder side wall template 3 via a hinge ball; the end of the second hinge shaft 10 of the second state transition structure 8 near the side wall of the box girder 1 is hinged to the top of the first hinge shaft 9 between the second diaphragm template 6 and the second box girder side wall template 4 via a hinge ball. In other embodiments, the end of the second hinge shaft 10 of the first state transition structure 7 near the side wall of the box girder 1 and the top of the first hinge shaft 9 between the first diaphragm template 5 and the first box girder side wall template 3 can be movably connected by a steel hinge rope; similarly, the end of the second hinge shaft 10 of the second state transition structure 8 near the side wall of the box girder 1 and the top of the first hinge shaft 9 between the second diaphragm template 6 and the second box girder side wall template 4 can also be movably connected by a steel hinge rope.

[0043] To broaden the applicability of this invention, the rotation range of the first diaphragm template 5 and the second diaphragm template 6 is approximately -45° to 45°, which is compatible with the inclination angles at both ends of the box girder 1. At the same time, processing errors can be taken into account. To ensure construction quality, the rotation range can be further expanded, for example, to -28° to 32°.

[0044] The working principle of this invention is as follows: When pouring the transverse diaphragm, the first box girder side wall template and the second box girder side wall template need to be installed in place first. Then, according to the inclination angle of the box girder end, the first transverse diaphragm template and the second transverse diaphragm template are rotated respectively. While rotating the first transverse diaphragm template and the second transverse diaphragm template, the first state conversion structure and the second state conversion structure are adjusted to ensure that the transverse diaphragm template on one side of the transverse diaphragm is sealed and connected to the corresponding box girder side wall template. After that, the side template is installed in place and the pouring can be carried out.

[0045] By using the technical solution of this invention, it is not necessary to process multiple sets of templates; only one set needs to be processed. On-site adjustments can be made flexibly according to different needs, which not only saves a lot of production materials and reduces construction costs, but also saves a lot of storage space and facilitates transportation. In addition, since the first transverse diaphragm template and the first box girder side wall template, as well as the second transverse diaphragm template and the second box girder side wall template, can be easily rotated and adjusted, there is no need to consider the processing error of the tilt angle, thereby ensuring the construction quality.

[0046] It is understood that the above description is merely exemplary and the embodiments of this application do not limit the scope of the application.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention shall be within the scope of protection of the pending claims of the present invention.

Claims

1. An adjustable-angle box girder diaphragm template, comprising at least a first box girder sidewall template (3), a second box girder sidewall template (4), a first diaphragm template (5), and a second diaphragm template (6), wherein the first box girder sidewall template (3) and the second box girder sidewall template (4) are respectively attached to the outer sidewall of the box girder (1) on both sides of the diaphragm (2) or used to form the outer sidewall of the box girder (1), and the first diaphragm template (5) and the second diaphragm template (6) are arranged relatively parallel to each other to form the two sidewalls of the diaphragm (2), characterized in that, The first diaphragm template (5) is rotatably connected to the first box girder sidewall template (3), and the second diaphragm template (6) is rotatably connected to the second box girder sidewall template (4). The box girder diaphragm template with adjustable angle also includes a first state transition structure (7) movably disposed on the top of the first box girder sidewall template (3) and the first diaphragm template (5), and a second state transition structure (8) movably disposed on the top of the second box girder sidewall template (4) and the second diaphragm template (6). The first state transition structure (7) is used to ensure a sealed connection between the first diaphragm template (5) and the first box girder sidewall template (3) when the first diaphragm template (5) rotates. The second state transition structure (8) is used to ensure a sealed connection between the second diaphragm template (6) and the second box girder sidewall template (4) when the second diaphragm template (6) rotates. The first box girder side wall template (3) and the second box girder side wall template (4) both include vertical sections (301, 401), and the tops of the two vertical sections (301, 401) are integrally fixedly connected with horizontal sections (302, 402). The horizontal sections (302, 402) bend and extend away from the top of the corresponding vertical sections (301, 401) in a direction away from the box girder (1). The edges of the transverse portions (302, 402) on the side near the diaphragm (2) are gradually moved away from the diaphragm (2) from the inside out; the top edges of the first diaphragm template (5) and the second diaphragm template (6) are gradually inclined downward from the inside out; The first state transition structure (7) and the second state transition structure (8) respectively include a horizontal baffle (701, 801) and a vertical baffle (702, 802) that rotate and cooperate with each other. The horizontal baffle (701, 801) and the vertical baffle (702, 802) are both corner plates with a apex angle. The edges of the horizontal baffle (701, 801) and the vertical baffle (702, 802) that rotate and cooperate are aligned at one end.

2. The adjustable-angle box girder diaphragm template according to claim 1, characterized in that, The horizontal baffles (701, 801) and vertical baffles (702, 802) can be triangular or fan-shaped.

3. The adjustable-angle box girder diaphragm template according to claim 1, characterized in that, The apex angles of the horizontal baffles (701, 801) and the vertical baffles (702, 802) are both less than 90°.

4. The adjustable-angle box girder diaphragm template according to claim 2, characterized in that, The transverse baffles (701, 801) of the first state transition structure (7) and the second state transition structure (8) are respectively set on the top surface of the transverse portions (302, 402) of the first box girder side wall template (3) and the second box girder side wall template (4), and the transverse baffles (701, 801) are slidably engaged with the corresponding transverse portions (302, 402); the vertical baffles (702, 802) of the first state transition structure (7) and the second state transition structure (8) are respectively set on the outside of the first transverse diaphragm template (5) and the second transverse diaphragm template (6) and press the first transverse diaphragm template (5) and the second transverse diaphragm template (6).

5. The adjustable-angle box girder diaphragm template according to claim 2, characterized in that, The first diaphragm template (5) and the first box girder side wall template (3) and the second diaphragm template (6) and the second box girder side wall template (4) are rotatably connected by a first hinge shaft (9). The horizontal baffles (701, 801) and vertical baffles (702, 802) of the first state transition structure (7) and the second state transition structure (8) are rotatably connected by a second hinge shaft (10).

6. The adjustable-angle box girder diaphragm template according to claim 5, characterized in that, The second hinge shaft (10) of the first state transition structure (7) is movably connected at one end near the side wall of the box girder (1) to the top of the first hinge shaft (9) between the first diaphragm template (5) and the first box girder side wall template (3); the second hinge shaft (10) of the second state transition structure (8) is movably connected at one end near the side wall of the box girder (1) to the top of the first hinge shaft (9) between the second diaphragm template (6) and the second box girder side wall template (4).

7. The adjustable-angle box girder diaphragm template according to any one of claims 1-6, characterized in that, The rotation range of the first diaphragm template (5) and the second diaphragm template (6) is approximately -45° to 45°.

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