Curved connectors for Bailey beams and their construction methods

Abstract

This invention belongs to the field of bridge construction technology, specifically relating to curved connectors for Bailey bridges and their construction method. The curved connector for Bailey bridges includes a left support beam and a right support beam, two female connectors flush with the two ends of the left support beam, two male connectors flush with the two ends of the right support beam, and front and rear connecting holes respectively provided on the female and male connectors for connecting to the Bailey bridge. The construction method for the curved connector for Bailey bridges includes calculating the construction nodes where the curved connectors will be installed based on the linear bridge to be constructed, determining the required number of curved connector sets (n) for each construction node based on its angle, and installing the curved connectors according to the required number of sets (n). This invention improves the controllability of bridge alignment, increases construction efficiency, and reduces construction costs.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction technology, and provides a Bailey bridge curved connector and its construction method that improve the controllability of bridge alignment, increase construction efficiency and reduce construction costs. Background Technology

[0002] Bailey bridges are a common temporary support structure used in bridge construction. They help support the weight of the bridge, preventing instability or collapse. They are an efficient, high-quality, safe, and economical bridge construction method that can shorten construction time, save costs, and improve project quality. Because Bailey bridges are manufactured in a factory environment and are prefabricated components, they can be directly transported to the construction site after prefabrication. This reduces the cost of on-site processing and formwork erection. Furthermore, the installation of Bailey bridges is relatively convenient, reducing manual labor and the risks associated with working at heights and in hazardous conditions during construction.

[0003] Traditional Bailey bridges typically consist of a frame formed by two vertical beams and two horizontal beams, with reinforcing members located within the frame and connecting corners (either inside or outside) at the ends of the vertical beams. When encountering bridges with curved designs, traditional Bailey bridges require multiple supports at the ends and during construction to control the bridge's alignment, resulting in slow construction progress. Even with these additional supports, effective control over the curved design remains difficult. The structural discontinuity caused by controlling the alignment in traditional Bailey bridge construction leads to unstable connections between beam sections, posing a high risk of overturning and resulting in inconvenient construction and high overall project costs. Furthermore, traditional Bailey bridges are not suitable for customized bridge designs.

[0004] In summary, achieving linear connections between traditional Bailey beams has always been a pressing technical challenge for the industry. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a curved connector for Bailey beams that improves the controllability of bridge alignment, increases construction efficiency, and reduces construction costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a curved connector for Bailey bridge beams, comprising: a left support beam and a right support beam; two female connectors respectively flush with the two ends of the left support beam; two male connectors respectively flush with the two ends of the right support beam; and front and rear connecting holes respectively provided on the female and male connectors for connecting to the Bailey bridge beam; the left support beam is provided with at least one support tube, which is arranged parallel to the female connectors on both sides of the left support beam;

[0008] At least one rotating shaft is provided on the right support beam. The rotating shaft is arranged parallel to the male connector on both sides of the right support beam. The number of rotating shafts is the same as the number of support pipes. The rotating shaft is a variable diameter shaft with a larger diameter at the top and a smaller diameter at the bottom. The larger diameter shaft section is welded to the right support beam as a whole, and the smaller diameter shaft section is inserted into the support pipe. The diameter of the larger diameter shaft section is greater than or equal to the outer diameter of the support pipe, and the diameter of the smaller diameter shaft section is less than the inner diameter of the support pipe or matches the inner diameter of the support pipe. Under the action of external force, the right support beam swings along the axis of the support pipe.

[0009] The top of the female connector at the top of the left support beam is provided with a scale indicator plate, and the top of the right support beam is provided with a scale plate, the top surface of which is provided with scale lines indicating angles.

[0010] The support tube has at least one locking screw threaded onto its wall.

[0011] Another objective of this invention is to provide a construction method for Bailey beam curved connectors that improves the controllability of bridge alignment, increases construction efficiency, and reduces construction costs.

[0012] To achieve the above objectives, the present invention provides the following technical solution:

[0013] A method for constructing a curved connector for Bailey bridges includes the following steps.

[0014] A. Calculate the construction nodes for installing curve connectors based on the linear bridge to be constructed, and determine the number of curve connectors n required for the construction node based on the angle of the construction node, n≥1.

[0015] B. Install one set of curved connectors at the construction node.

[0016] a, to obtain the original angle P1;

[0017] The female connector on the left support beam of the curved connector is fixedly connected to the Bailey beam on the left side of the curved connector, ensuring that the left support beam and the Bailey beam on the left side of the curved connector are on the same straight line. At this time, the data corresponding to the scale indicated by the scale plate on the dial is the original angle P1.

[0018] b. Adjusting the moving angle P2;

[0019] According to formula P 1+ P 设 =P2 to calculate the moving angle P2; then, use external force to move the right support beam, causing it to swing along the axis of the support tube until the required moving angle P2 is reached, where P 设The angle of the construction node; finally, the small-diameter shaft section of the rotating shaft is radially locked and limited in the support tube by the locking screw, and the large-diameter shaft section of the rotating shaft is axially limited on the support tube by its own weight; so that the angle between the left support beam and the right support beam is P. 设 ;

[0020] c. Fix the male connector on the right support beam to the Bailey beam located on the right side of the curved connector as a single unit, ensuring that the right support beam and the Bailey beam located on the right side of the curved connector are on the same straight line; so that the angle between the Bailey beam located on the right side of the curved connector and the Bailey beam located on the left side of the curved connector is P. 设 .

[0021] The beneficial effects of this invention are:

[0022] 1. Using Bailey bridge curved connectors makes the bridge alignment more controllable and allows for more personalized bridge design.

[0023] 2. Compared with traditional Bailey beam erection, this invention does not add any procedures, improves the connection and continuity between Bailey beams, and can effectively improve construction safety.

[0024] 3. Traditional Bailey bridges cannot be erected continuously according to the curvature of the bridge, and additional supports must be added. Using Bailey bridge curved connectors can avoid adding supports, reduce procedures, and save corresponding construction costs.

[0025] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the left support beam tube of the present invention from the main view direction;

[0029] Figure 3 This is a schematic diagram of the left support beam tube of the present invention from a top view.

[0030] Figure 4 This is a schematic diagram of the right support beam tube of the present invention from the main view direction;

[0031] Figure 5 This is a schematic diagram of the right support beam tube of the present invention from a top view.

[0032] Figure 6 This is a schematic diagram of the structure of the bridge using three sets of curved connectors on one side when the present invention is used, taken from the main view direction.

[0033] Figure 7 This is a top-view structural diagram of the bridge sides when the present invention is in use;

[0034] Reference numerals: 1. Left support beam; 2. Right support beam; 3. Female connector; 4. Male connector; 5. Support tube; 6. Rotating shaft; 7. Scale indicator plate; 8. Scale dial; 9. Scale line; 10. Locking screw; 11. Front connecting hole; 12. Rear connecting hole; 13. Bailey beam; 14. Reinforcing rib; 15. Curved connector; 16. Second reinforcing rib. Detailed Implementation

[0035] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual photographs, and should not be construed as limiting this patent. To better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0037] like Figure 1-5 As shown, the present invention provides a curved connector for Bailey bridge beams, comprising: a left support beam 1 and a right support beam 2; two female connectors 3 respectively flush with the two ends of the left support beam 1; two male connectors 4 respectively flush with the two ends of the right support beam 2; and front connecting holes 11 and rear connecting holes 12 respectively provided on the female connectors 3 and male connectors 4 for connecting to the Bailey bridge beam; the left support beam 1 is provided with at least one support tube 5, which is arranged parallel to the female connectors 3 on both sides of the left support beam 1;

[0038] At least one rotating shaft 6 is provided on the right support beam 2. The rotating shaft 6 is arranged parallel to the male connector 4 on both sides of the right support beam 2. The number of rotating shafts 6 is the same as the number of support pipes 5. The rotating shaft 6 is a variable diameter shaft with a larger diameter at the top and a smaller diameter at the bottom. The larger diameter shaft section is welded to the right support beam 2 as a whole, and the smaller diameter shaft section is inserted into the support pipe 5. The diameter of the larger diameter shaft section is greater than or equal to the outer diameter of the support pipe 5, and the diameter of the smaller diameter shaft section is less than the inner diameter of the support pipe 5 or matches the inner diameter of the support pipe 5. Under the action of external force, the right support beam 2 swings along the axis of the support pipe 5.

[0039] The top of the female connector 3 at the top position of the left support beam 1 is provided with a scale indicator plate 7, and the top of the right support beam 2 is provided with a scale plate 8, and the top plate surface of the scale plate 8 is provided with scale lines 9 indicating angles.

[0040] At least one locking screw 10 is threaded onto the wall of the support tube 5. In this embodiment, the dial 8 and the right support beam 2 and / or the male connector 4 may be threaded together to facilitate the recycling and reuse of the dial 8. The scale indicator plate 7 and the left support beam 1 and / or the female connector 3 may be threaded together to facilitate the recycling and reuse of the scale indicator plate 7.

[0041] To ensure the stability of the connection between the right support beam 2 and the left support beam 1, in the above embodiment, preferably, there are three support pipes 5, which are welded together with the left support beam 1.

[0042] To ensure the stability of the overall structural layout, in the above embodiment, preferably, one of the three support pipes 5 is located in the middle of the left support beam 1, and the other two support pipes 5 are located at the top and bottom of the left support beam 1, respectively.

[0043] One of the three corresponding pivots 6 is located in the middle of the right support beam 2, and the other two pivots 6 are located at the top and bottom of the right support beam 2, respectively.

[0044] To further ensure the stability of the overall structural layout and the mechanical performance, in the above embodiment, preferably: the top surface of the support pipe 5 located at the top of the left support beam 1 is lower than the bottom surface of the female connector 3 located at the top of the left support beam 1, and the bottom surface of the support pipe 5 located at the bottom of the left support beam 1 is flush with the bottom surface of the female connector 3 located at the bottom of the left support beam 1.

[0045] The top surface of the rotating shaft 6 located at the top of the right support beam 2 is flush with the top surface of the female connector 3 located at the top of the right support beam 2, and the bottom surface of the rotating shaft 6 is flush with the bottom surface of the support tube 5 located at the top of the left support beam 1.

[0046] The bottom end face of the rotating shaft 6 located at the bottom of the right support beam 2 is flush with the bottom end face of the female connector 3 located at the bottom of the right support beam 2, and the bottom end face of the rotating shaft 6 is flush with the bottom end face of the support pipe 5 located at the bottom of the left support beam 1.

[0047] The bottom end face of the pivot 6 located in the middle of the right support beam 2 is flush with the bottom end face of the support tube 5 located in the middle of the left support beam 1.

[0048] In the following method embodiments, the curved connector 15 is actually the structure described above for the curved connector for Bailey beams.

[0049] See appendix Figures 1 to 7 In the case of installing a set of curved connectors at the same construction node, a construction method for curved connectors for Bailey beams includes the following steps:

[0050] A. Calculate the construction nodes for installing curve connectors 15 based on the linear bridge to be constructed, and determine the number of sets n of curve connectors 15 required for the construction node based on the angle of the construction node, n≥1.

[0051] B, Install one set of curved connector 15 at the construction node.

[0052] a, to obtain the original angle P1;

[0053] The female connector 3 on the left support beam 1 of the curved connector 15 is fixedly connected to the Bailey beam 13 located on the left side of the curved connector 15 as a whole, ensuring that the left support beam 1 and the Bailey beam 13 located on the left side of the curved connector 15 are on the same straight line. At this time, the data corresponding to the scale indicated by the scale plate 7 on the scale 8 is the original angle P1.

[0054] b. Adjusting the moving angle P2;

[0055] According to formula P 1+ P 设 =P2 to calculate the moving angle P2; then, use external force to move the right support beam 2, causing it to swing along the axis of the support pipe 5 until the required moving angle P2 is reached, where P 设 The angle of the construction node; finally, the small-diameter shaft section of the rotating shaft 6 is radially locked and limited in the support pipe 5 by the locking screw 10, and the large-diameter shaft section of the rotating shaft 6 is axially limited on the support pipe 5 by its own weight; so that the angle between the left support beam 1 and the right support beam 2 is P. 设 ;

[0056] c. Fix the male connector 4 on the right support beam 2 to the Bailey beam 13 located to the right of the curved connector 15 as a whole, ensuring that the right support beam 2 and the Bailey beam 13 located to the right of the curved connector 15 are on the same straight line; so that the angle between the Bailey beam 13 located to the right of the curved connector 15 and the Bailey beam 13 located to the left of the curved connector 15 is P. 设 .

[0057] See appendix Figures 1 to 7 In embodiment 15, when installing at least two sets of curved connectors at the same construction node, a construction method for curved connectors for Bailey beams includes the following steps:

[0058] A. Calculate the construction nodes for installing curve connectors 15 based on the linear bridge to be constructed, and determine the number of sets n of curve connectors 15 required for the construction node based on the angle of the construction node, n≥1.

[0059] B. At least two sets of curved connectors 15 are installed at the construction node. When n sets are actually required, where n≥2, the adjustment angle P2 required for each set of curved connectors 15 is P2=P 设 ÷n, where P 设 The angle of the construction node;

[0060] a, to obtain the original angle P1;

[0061] The female connector 3 on the left support beam 1 of the curved connector 15 located at the leftmost position of the construction node is fixedly connected to the Bailey beam 13 located on the left side of the construction node, so as to ensure that the left support beam 1 of the curved connector 15 and the Bailey beam 13 on the left side of the construction node are on the same straight line. At this time, the scale indicator plate 7 on the left support beam 1 of the curved connector 15 indicates the original angle P1 on the scale 8.

[0062] b. Adjusting the moving angle P2;

[0063] According to the formula P2=P 设 The moving angle P2 is calculated by dividing by n; the external force moves the right support beam 2 of the above-mentioned curved connector 15, so that the right support beam 2 swings along the axis of the support tube 5 until the required moving angle P2 is reached; finally, the small diameter shaft section of the rotating shaft 6 is radially locked and limited in the support tube 5 by the locking screw 10, and the large diameter shaft section of the rotating shaft 6 is axially limited on the support tube 5 by its own weight; so that the angle between the left support beam 1 and the right support beam 2 is P2;

[0064] c. At the construction node, n-1 sets of curved connectors 15 are installed on the right support beam 2 of the curved connector 15 located at the leftmost position. The angle between two adjacent sets of curved connectors 15 is P2. The female connector 3 of the curved connector 15 located at the rear position and the male connector 4 of the curved connector 15 located at the front position are fixed together. This makes the right support beam 2 of the curved connector 15 located at the front position and the left support beam 1 of the curved connector 15 located at the front position on the same straight line. At this time, the scale indicator plate 7 on the left support beam 1 of the curved connector 15 located at the front position indicates the scale on the scale 8. The data corresponding to the degree is the base angle. This base angle plus P2 is the angle at which the right support beam 2 of the curved connector 15 located at the rear needs to swing. An external force moves the right support beam 2 of the curved connector 15 located at the rear to swing it along the axis of the support tube 5 on the left support beam 1 of the curved connector 15 located at the rear until it swings by an angle P2. Finally, the small diameter shaft section of the rotating shaft 6 is radially locked and limited in the support tube 5 by the locking screw 10 of the curved connector 15 located at the rear. The large diameter shaft section of the rotating shaft 6 is axially limited on the support tube 5 by its own weight. This makes the angle between the left support beam 1 and the right support beam 2 of the curved connector 15 located at the rear P2.

[0065] D. The male connector 4 on the right support beam 2 of the curved connector 15 located at the rightmost position of the construction node is fixedly connected to the Bailey beam 13 located on the right side of the construction node, ensuring that the right support beam 2 and the Bailey beam 13 located on the right side of the construction node are on the same straight line; making the angle between the Bailey beam 13 located on the rightmost position of the construction node and the Bailey beam 13 located on the left side of the construction node P. 设 .

[0066] To ensure the stability of the connection, in the above embodiment, preferably, at the same construction node on both the inner and outer side beams of the linear bridge under construction, the middle portion of the curved connector 15 on the inner side beam and the middle portion of the curved connector 15 on the outer side beam are fixed together by reinforcing ribs 14. Adjacent reinforcing ribs 14 at the same construction node can also be welded together by second reinforcing ribs 16 to enhance the overall connection stability. Figure 7 The specific welding method for the second reinforcing rib weld 16 is given, and will not be elaborated here.

[0067] To facilitate welding construction, in the above embodiments, preferably: the front end and rear end of the reinforcing rib 14 are welded together with the support pipe 5 at the middle position of the left support beam 1 of the two curved connectors 15 at opposite positions on the two side beams of the linear bridge to be constructed, and / or the front end and rear end of the reinforcing rib 14 are welded together with the large diameter section of the rotating shaft 6 at the middle position of the right support beam 2 of the two curved connectors 15 at opposite positions on the two side beams of the linear bridge to be constructed.

[0068] In the above embodiments, compared with the traditional Bailey beam 13 overlapping method, the addition of the curved connector 15 does not increase the installation difficulty, but it avoids the structural discontinuity caused by controlling the alignment of traditional Bailey beams, making the connection between Bailey beam segments more stable and reducing the risk of overturning. Traditional Bailey beam erection requires multiple support points at the ends to control the bridge alignment. This invention avoids adding support points midway through Bailey beam erection, reducing construction steps and lowering the possibility of safety accidents. In summary, this invention improves the controllability of bridge alignment, increases construction efficiency, and reduces construction costs.

[0069] In the above embodiments, all components are commercially available products.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A curved connector for Bailey beams, characterized in that: It includes a left support beam (1) and a right support beam (2), two female connectors (3) that are flush with the two ends of the left support beam (1), two male connectors (4) that are flush with the two ends of the right support beam (2), and front connecting holes (11) and rear connecting holes (12) respectively provided on the female connectors (3) and male connectors (4) for connecting with Bailey beams; the left support beam (1) is provided with at least one support pipe (5), which is arranged parallel to the female connectors (3) on both sides of the left support beam (1); At least one rotating shaft (6) is provided on the right support beam (2). The rotating shaft (6) is arranged parallel to the male connector (4) on both sides of the right support beam (2). The number of rotating shafts (6) is the same as the number of support pipes (5). The rotating shaft (6) adopts a variable diameter shaft with a larger diameter at the top and a smaller diameter at the bottom. The large diameter shaft section is welded to the right support beam (2) as a whole, and the small diameter shaft section is inserted into the support pipe (5). The diameter of the large diameter shaft section is greater than or equal to the outer diameter of the support pipe (5), and the diameter of the small diameter shaft section is less than the inner diameter of the support pipe (5) or matches the inner diameter of the support pipe (5). Under the action of external force, the right support beam (2) swings along the axis of the support pipe (5). The top of the female connector (3) at the top position of the left support beam (1) is provided with a scale indicator plate (7), and the top of the right support beam (2) is provided with a scale plate (8). The top plate surface of the scale plate (8) is provided with scale lines (9) indicating the angle. At least one locking screw (10) is threaded onto the wall of the support tube (5).

2. The curved connector for Bailey beams according to claim 1, characterized in that: There are three support pipes (5), which are welded together with the left support beam (1).

3. The curved connector for Bailey beams according to claim 2, characterized in that: One of the three support pipes (5) is located in the middle of the left support beam (1), and the other two support pipes (5) are located at the top and bottom of the left support beam (1) respectively. One of the three corresponding pivots (6) is located in the middle of the right support beam (2), and the other two pivots (6) are located at the top and bottom of the right support beam (2) respectively.

4. The curved connector for Bailey beams according to claim 3, characterized in that: The top surface of the support tube (5) located at the top of the left support beam (1) is lower than the bottom surface of the female connector (3) located at the top of the left support beam (1), and the bottom surface of the support tube (5) located at the bottom of the left support beam (1) is flush with the bottom surface of the female connector (3) located at the bottom of the left support beam (1). The top surface of the pivot (6) located at the top of the right support beam (2) is flush with the top surface of the female connector (3) located at the top of the right support beam (2), and the bottom surface of the pivot (6) is flush with the bottom surface of the support tube (5) located at the top of the left support beam (1). The bottom end face of the pivot (6) located at the bottom of the right support beam (2) is flush with the bottom end face of the female connector (3) located at the bottom of the right support beam (2), and the bottom end face of the pivot (6) is flush with the bottom end face of the support pipe (5) located at the bottom of the left support beam (1). The bottom end face of the pivot (6) located in the middle of the right support beam (2) is flush with the bottom end face of the support tube (5) located in the middle of the left support beam (1).

5. The construction method for the curved connector for Bailey beams according to any one of claims 1 to 4, characterized in that: Includes the following steps, A. Calculate the construction node for adding the curve connector (15) based on the linear bridge to be constructed, and determine the number of curve connectors (15) required for the construction node n based on the angle of the construction node, n≥1. B, Install one set of curved connectors (15) at the construction node. a, to obtain the original angle P1; The female connector (3) on the left support beam (1) of the curved connector (15) is fixedly connected to the Bailey beam (13) located on the left side of the curved connector (15) as a whole, so that the left support beam (1) and the Bailey beam (13) located on the left side of the curved connector (15) are on the same straight line. At this time, the data corresponding to the scale indicated by the scale plate (7) on the scale (8) is the original angle P1. b. Adjustment of the moving angle P2; According to formula P 1+ P 设 =P2 to calculate the moving angle P2; then the external force moves the right support beam (2) so that the right support beam (2) swings along the axis of the support pipe (5) until the required moving angle P2 is reached, where P 设 The angle of the construction node is determined; finally, the small diameter shaft section of the rotating shaft (6) is radially locked and limited in the support pipe (5) by the locking screw (10), and the large diameter shaft section of the rotating shaft (6) is axially limited on the support pipe (5) by its own weight; so that the angle between the left support beam (1) and the right support beam (2) is P. 设 ; c. Fix the male connector (4) on the right support beam (2) to the Bailey beam (13) located on the right side of the curved connector (15) as a whole, ensuring that the right support beam (2) and the Bailey beam (13) located on the right side of the curved connector (15) are on the same straight line; so that the angle between the Bailey beam (13) located on the right side of the curved connector (15) and the Bailey beam (13) located on the left side of the curved connector (15) is P. 设 .

6. The construction method of the curved connector for Bailey beams according to any one of claims 1 to 4, characterized in that: Includes the following steps, A. Calculate the construction node for installing the curve connector (15) based on the linear bridge to be constructed, and determine the number of curve connectors (15) required for the construction node n based on the angle of the construction node, n≥1. B, At least two sets of curved connectors (15) are installed at the construction node. When n sets are actually required, where n≥2, the adjustment angle P2 for each set of curved connectors (15) is P2=P 设 ÷n, where P 设 The angle of the construction node; a, to obtain the original angle P1; The female connector (3) on the left support beam (1) of the curved connector (15) located at the leftmost position of the construction node is fixedly connected to the Bailey beam (13) located on the left side of the construction node, so as to ensure that the left support beam (1) of the curved connector (15) and the Bailey beam (13) on the left side of the construction node are on the same straight line. At this time, the scale indicator plate (7) on the left support beam (1) of the curved connector (15) indicates the original angle P1 on the scale plate (8). b. Adjustment of the moving angle P2; According to the formula P2=P 设 The moving angle P2 is calculated by dividing by n; the external force moves the right support beam (2) of the above-mentioned curved connector (15) so that the right support beam (2) swings along the axis of the support tube (5) until the required moving angle P2 is reached; finally, the small diameter shaft section of the rotating shaft (6) is radially locked and limited in the support tube (5) by the locking screw (10), and the large diameter shaft section of the rotating shaft (6) is axially limited on the support tube (5) by its own weight; so that the angle between the left support beam (1) and the right support beam (2) is P2; c. At the construction node, n-1 sets of curved connectors (15) are installed on the right support beam (2) of the curved connector (15) located at the leftmost position. The angle between two adjacent sets of curved connectors (15) is P2. The female connector (3) of the curved connector (15) located at the rear position and the male connector (4) of the curved connector (15) located at the front position are fixed together. This makes the right support beam (2) of the curved connector (15) located at the front position and the left support beam (1) of the curved connector (15) located at the front position on the same straight line. At this time, the scale indicator plate (7) on the left support beam (1) of the curved connector (15) located at the front position indicates on the scale (8). The data corresponding to the scale is the base angle. The base angle plus P2 is the angle that the right support beam (2) of the curved connector (15) located at the rear needs to swing. The external force moves the right support beam (2) of the curved connector (15) located at the rear to swing along the axis of the support tube (5) on the left support beam (1) of the curved connector (15) located at the rear until the angle is P2. Finally, the small diameter shaft section of the rotating shaft (6) is radially locked and limited in the support tube (5) by the locking screw (10) of the curved connector (15) located at the rear. The large diameter shaft section of the rotating shaft (6) is axially limited in the support tube (5) by its own weight. The angle between the left support beam (1) and the right support beam (2) of the curved connector (15) located at the rear is P2. D. Fix the male connector (4) on the right support beam (2) of the curved connector (15) located at the rightmost position of the construction node to the Bailey beam (13) located on the right side of the construction node as a whole, ensuring that the right support beam (2) and the Bailey beam (13) located on the right side of the construction node are on the same straight line; so that the angle between the Bailey beam (13) located at the rightmost position of the construction node and the Bailey beam (13) located on the left side of the construction node is P. 设 .

7. The construction method for the curved connector for Bailey beams according to claim 6, characterized in that: At the construction node at the same location of the inner side beam and the outer side beam of the linear bridge to be constructed, the middle part of the curved connector (15) on the inner side beam of the linear bridge to be constructed and the middle part of the curved connector (15) on the outer side beam of the linear bridge to be constructed are fixed together by reinforcing ribs (14).

8. The construction method for the curved connector for Bailey beams according to claim 7, characterized in that: The front and rear ends of the reinforcing rib (14) are respectively welded to the support pipe (5) at the middle position of the left support beam (1) of the two curved connectors (15) at the relative positions on the two side beams of the linear bridge to be constructed, and / or the front and rear ends of the reinforcing rib (14) are respectively welded to the large diameter section of the rotating shaft (6) at the middle position of the right support beam (2) of the two curved connectors (15) at the relative positions on the two side beams of the linear bridge to be constructed.

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