Modular articulated prefabricated assembled truss composite beam structure

Abstract

The application discloses a modular hinged prefabricated and assembled truss combined beam structure, which comprises a main truss rod, a plurality of panel assemblies, a plurality of main truss rods arranged along a transverse bridge direction below the panel assemblies, and a hinge connection between two adjacent main truss rods along a longitudinal bridge direction. A plurality of joints are arranged on the panel assemblies, the joints divide the panel assemblies into first panels and second panels, and at least two main truss rods are arranged below each of the first panels and the second panels. A longitudinal bridge direction support assembly, a transverse bridge direction support assembly, and wet joints are arranged between adjacent first panels and second panels, two adjacent first panels, and two adjacent second panels. The application avoids the fatigue cracking problem of the connecting concrete bridge panel caused by the over-strong constraint of the traditional truss combined beam bridge concrete bridge panel and the truss rod, and realizes the full-element factory prefabrication and the modular rapid assembly mode of the bridge structure, thereby accelerating the construction speed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of truss composite beam bridges, in particular to a modular hinged prefabricated and assembled truss composite beam structure. BACKGROUND

[0002] Truss members are widely used in bridge engineering due to their light weight, clear stress and easy assembly. However, in the traditional truss composite beam as shown in the accompanying drawings, the truss members are directly inserted into the concrete deck slab and poured into a whole with the concrete deck slab, which forms a fixed end constraint between the concrete deck slab and the truss members. Due to the large difference in stiffness between the two, fatigue cracking is prone to occur at the intersection between the truss members and the concrete deck slab under the reciprocating action of vehicle load, which increases the risk of long-term exposure of the interior of the deck slab to the corrosion environment, and in severe cases, directly affects the safety of the bridge structure. Figure 1

[0003] Therefore, it is urgent to design a modular hinged prefabricated and assembled truss composite beam structure to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a modular hinged prefabricated and assembled truss composite beam structure, which comprises a main truss rod.

[0005] A plurality of panel assemblies are provided, and a plurality of main truss rods are arranged along the transverse direction below the panel assemblies. The top ends of the main truss rods are hinged to longitudinal bridge support assemblies, and the bottom ends of the longitudinal bridge support assemblies are hinged to the first and second panels. Two adjacent longitudinal bridge support assemblies are hinged by a connecting piece along the longitudinal direction.

[0006] A plurality of panel assemblies are provided, and a plurality of main truss rods are arranged along the transverse direction below the panel assemblies. The top ends of the main truss rods are hinged to longitudinal bridge support assemblies, and the bottom ends of the longitudinal bridge support assemblies are hinged to the first and second panels. Two adjacent longitudinal bridge support assemblies are hinged by a connecting piece along the longitudinal direction.

[0007] A plurality of panel assemblies are provided, and a plurality of main truss rods are arranged along the transverse direction below the panel assemblies. The top ends of the main truss rods are hinged to longitudinal bridge support assemblies, and the bottom ends of the longitudinal bridge support assemblies are hinged to the first and second panels. Two adjacent longitudinal bridge support assemblies are hinged by a connecting piece along the longitudinal direction.

[0008] A plurality of panel assemblies are provided, and a plurality of main truss rods are arranged along the transverse direction below the panel assemblies. The top ends of the main truss rods are hinged to longitudinal bridge support assemblies, and the bottom ends of the longitudinal bridge support assemblies are hinged to the first and second panels. Two adjacent longitudinal bridge support assemblies are hinged by a connecting piece along the longitudinal direction.

[0009] ​Preferably, the longitudinal bridging support assembly comprises at least two first longitudinal bridging beams, and a second longitudinal bridging beam is arranged between the two first longitudinal bridging beams, the first longitudinal bridging beam is hinged to the first panel and the second panel, the bottom end of the second longitudinal bridging beam is hinged to the bottom end of an adjacent first longitudinal bridging beam, and the top end of the second longitudinal bridging beam is hinged to the top end of another adjacent first longitudinal bridging beam; the first longitudinal bridging beam located on both sides of the hinge points of the two adjacent main beams is hinged through the connecting piece.

[0010] Preferably, the connecting piece comprises the second longitudinal bridging beam and a third longitudinal bridging beam, one end of the second longitudinal bridging beam is hinged to the top end of the first longitudinal bridging beam located on one side of the hinge point of the two adjacent main beams, and the other end of the second longitudinal bridging beam is hinged to the bottom end of the first longitudinal bridging beam located on the other side of the hinge point of the two adjacent main beams; the two ends of the third longitudinal bridging beam are respectively hinged to the top ends of the two second longitudinal bridging beams.

[0011] Preferably, the transverse bridging support assembly comprises a first transverse bridging beam, a second transverse bridging beam and a third transverse bridging beam, the third transverse bridging beam is arranged between the two adjacent main beams, the two ends of the third transverse bridging beam are respectively hinged to the two adjacent main beams, and the two ends of the third transverse bridging beam are respectively hinged to the first transverse bridging beam and the second transverse bridging beam, the ends of the first transverse bridging beam and the second transverse bridging beam are hinged to the bottom ends of the first panel and the second panel, and the ends of the first transverse bridging beam and the second transverse bridging beam are hinged.

[0012] Preferably, the bottom ends of the first panel and the second panel are respectively fixed with a plurality of hinge ears, and the first longitudinal bridging beam, the second longitudinal bridging beam, the third longitudinal bridging beam, the first transverse bridging beam and the second transverse bridging beam are hinged to the hinge ears through pins.

[0013] Preferably, the top ends and the inner sides of the main beams located on both sides of the transverse direction are respectively fixed with hinge ears, the top ends and the two sides of the main beams located in the middle of the transverse direction are respectively fixed with hinge ears, and the first transverse bridging beam, the second transverse bridging beam, the third transverse bridging beam, the first longitudinal bridging beam and the second longitudinal bridging beam are hinged to the hinge ears through pins.

[0014] Preferably, the joint is arranged between the transverse bridging support assembly and the longitudinal bridging support assembly adjacent to the transverse bridging support assembly.

[0015] Preferably, the joint connecting piece is a wet joint.

[0016] The present application discloses the following technical effects:

[0017] 1. The pin shaft is arranged between the truss bar and the prefabricated concrete bridge deck to form a reliable connection, release the strong constraint, and avoid the fatigue cracking problem of the concrete bridge deck caused by the large difference in stiffness between the truss bar and the concrete under the reciprocating action of the vehicle load.

[0018] 2. The bar is a standardized thin-walled bar, which can realize rapid assembly of the truss bar in the bridge direction, and can also be assembled into a truss bridge with multiple width sections in the transverse direction of the bridge. Only the concrete bridge deck needs to be reasonably divided according to the actual situation on site, and the erection scheme needs to be determined, and the embedded hinge lug needs to be arranged according to a certain size to prefabricate the concrete bridge deck, so that the rapid construction of the super-wide bridge can be realized.

[0019] 3. The present application avoids the cracking problem caused by shrinkage and creep of mass concrete during on-site pouring by pouring multiple concrete wet joints between each prefabricated concrete bridge deck. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a longitudinal bridge vertical view of a traditional truss composite beam.

[0022] Figure 2 It is an axonometric view of the modular hinged prefabricated assembled truss composite beam structure.

[0023] Figure 3 It is a mid-beam truss bar assembly layout.

[0024] Figure 4 It is a one-side truss bar assembly layout.

[0025] Figure 5 It is a longitudinal bridge assembly elevation view.

[0026] Figure 6 It is a mid-bridge longitudinal assembly bar layout.

[0027] Figure 7 It is a one-side bridge assembly bar layout.

[0028] Figure 8 It is a longitudinal bridge assembly bar layout of the other side.

[0029] Figure 9 It is a structural schematic view of the first longitudinal bridge truss.

[0030] Figure 10 Structure diagram of the second longitudinal bridge direction truss;

[0031] Figure 11 Structure diagram of the third longitudinal bridge direction truss;

[0032] Figure 12 Arrangement diagram of the transverse bridge direction assembly truss;

[0033] Figure 13 Structure diagram of the first transverse bridge direction truss;

[0034] Figure 14 Structure diagram of the second transverse bridge direction truss;

[0035] Figure 15 Structure diagram of the third transverse bridge direction truss;

[0036] Figure 16 Structure diagram of the first panel;

[0037] Figure 17 Structure diagram of the second panel;

[0038] Figure 18 Structure diagram of the hinge lug;

[0039] Figure 19 Structure diagram of the pin shaft;

[0040] Figure 20 Transverse bridge direction elevation view;

[0041] Wherein, 1, the first panel; 2, the second panel; 3, the main truss; 4, the third transverse bridge direction truss; 5, the first transverse bridge direction truss; 6, the wet joint; 7, the second transverse bridge direction truss; 8, the second longitudinal bridge direction truss; 9, the first longitudinal bridge direction truss; 10, the pin shaft; 11, the hinge lug; 12, the third longitudinal bridge direction truss. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0044] Reference Figures 2-20 The present application provides a digital-analog type hinged prefabricated assembly truss combined beam structure, comprising,

[0045] Main truss 3;

[0046] The panel assembly is provided with a plurality of panel assemblies arranged along the longitudinal bridge direction; a plurality of main trusses 3 are arranged below the panel assembly along the transverse bridge direction, and two adjacent main trusses 3 along the longitudinal bridge direction are hinged; a plurality of seams are formed on the panel assembly, the plurality of seams divide the panel assembly into a first panel 1 and a second panel 2, and at least two main trusses 3 are arranged below the first panel 1 and the second panel 2;

[0047] The longitudinal bridge support assembly is hinged to the top end of the first panel 1 and the second panel 2, and two adjacent longitudinal bridge support assemblies along the longitudinal bridge direction are hinged through a connecting piece.

[0048] The transverse bridge support assembly is arranged between any two adjacent main trusses 3, and the two ends of the transverse bridge support assembly are hinged to the adjacent main trusses 3, respectively; the top end of the transverse bridge support assembly is hinged to the first panel 1 and the second panel 2.

[0049] The seam connecting piece is connected between adjacent first panels 1 and second panels 2, adjacent first panels 1, and adjacent second panels 2.

[0050] Further, the first panel 1 and the second panel 2 are concrete panels.

[0051] The whole is prefabricated in the factory, and then installed on site, which reduces the construction difficulty and improves the construction efficiency.

[0052] Further, the main truss 3 is a main force-bearing member, one end of the main truss 3 is provided with a female socket, the other end of the main truss 3 is fixedly connected with a male end, a through hole matched with the pin shaft 10 is formed at the center position of the female socket and the male end, and the female socket of the main truss 3 is hinged to the male end of the adjacent main truss 3 through the pin shaft 10.

[0053] Further, the longitudinal bridge support assembly includes at least two first longitudinal bridge trusses 9, a second longitudinal bridge truss 8 is arranged between the two first longitudinal bridge trusses 9, the first longitudinal bridge truss 9 is hinged to the first panel 1 and the second panel 2, the bottom end of the second longitudinal bridge truss 8 is hinged to the bottom end of an adjacent first longitudinal bridge truss 9, and the top end of the second longitudinal bridge truss 8 is hinged to the top end of another adjacent first longitudinal bridge truss 9; the first longitudinal bridge trusses 9 located on both sides of the hinge points of the two adjacent main trusses 3 along the longitudinal bridge direction are hinged through a connecting piece.

[0054] Further, the first longitudinal bridging truss 9 is provided with a convex sub-end at each end, and a main force transmission component is provided with a through hole at the center of the two convex sub-ends; the second longitudinal bridging truss 8 is provided with a concave female end at each end, and a main force transmission component is provided with a through hole at the center of the two concave female ends; and the third longitudinal bridging truss 12 is provided with a temporary connecting piece with a through hole at each end.

[0055] Further, the first longitudinal bridging truss 9 is provided in an inclined manner, and the hinge point of the first longitudinal bridging truss 9 and the first panel 1 and the second panel 2 is close to the convex sub-end of the main truss 3 to which the first longitudinal bridging truss 9 is hinged; the bottom end of the second longitudinal bridging truss 8 is hinged to the bottom end of the first longitudinal bridging truss 9 close to the convex sub-end; the top end of the second longitudinal bridging truss 8 is hinged to the top end of the first longitudinal bridging truss 9 away from the convex sub-end; and the projection of the first longitudinal bridging truss 9 and the second longitudinal bridging truss 8 is a stable triangular structure.

[0056] Further, the connecting piece includes the second longitudinal bridging truss 8 and the third longitudinal bridging truss 12, one end of the second longitudinal bridging truss 8 is hinged to the top end of the first longitudinal bridging truss 9 located on one side of the hinge point of the adjacent two main trusses 3, the other end of the second longitudinal bridging truss 8 is hinged to the bottom end of the first longitudinal bridging truss 9 located on the other side of the hinge point of the adjacent two main trusses 3; and the two ends of the third longitudinal bridging truss 12 are respectively hinged to the top end of the two second longitudinal bridging trusses 8.

[0057] Further, the third longitudinal bridging truss 12 is a temporary truss, which is removed after the wet joint 6 is poured, and the role of the third longitudinal bridging truss 12 is to avoid instability and damage during the pouring process of the wet joint 6.

[0058] Further, the transverse bridging support assembly includes the first transverse bridging truss 5, the second transverse bridging truss 7, and the third transverse bridging truss 4, the third transverse bridging truss 4 is arranged between the adjacent two main trusses 3, the two ends of the third transverse bridging truss 4 are respectively hinged to the adjacent two main trusses 3, the two ends of the third transverse bridging truss 4 are respectively hinged to the first transverse bridging truss 5 and the second transverse bridging truss 7, the end of the first transverse bridging truss 5 and the end of the second transverse bridging truss 7 are hinged to the bottom end of the first panel 1 and the second panel 2, and the end of the first transverse bridging truss 5 and the end of the second transverse bridging truss 7 are hinged.

[0059] Further, the first transverse bridging truss 5, the second transverse bridging truss 7, and the third transverse bridging truss 4 form a stable triangular structure.

[0060] Further, the first horizontal bridge-wise girder 5 is a secondary force transmission component with a male end fixed at both ends and a through hole in the center of the two male ends; the second horizontal bridge-wise girder 7 is a secondary force transmission component with a female mouth at both ends and a through hole in the center of the two female mouths; and the third horizontal bridge-wise girder 4 is a secondary force transmission component with a female mouth at one end, a male end fixed at the other end, and a through hole in the center of the female mouth and the male end.

[0061] Further, due to the limitation of the female mouth and the male end, the horizontal bridge-wise support assembly is assembled in the following order: first, the first horizontal bridge-wise girder 5 is assembled; then, the third horizontal bridge-wise girder 4 is assembled; and finally, the second horizontal bridge-wise girder 7 is assembled.

[0062] Further, the first panel 1 and the second panel 2 are fixed with a plurality of hinge ears 11 at the bottom ends, and the first longitudinal bridge-wise girder 9, the second longitudinal bridge-wise girder 8, the third longitudinal bridge-wise girder 12, the first horizontal bridge-wise girder 5 and the second horizontal bridge-wise girder 7 are hinged with the hinge ears 11 through a pin shaft 10.

[0063] Further, the hinge ears 11 are fixed on the first panel 1 and the second panel 2 by pouring.

[0064] Further, the hinge ears 11 are fixed on the first panel 1 and the second panel 2 by pouring.

[0065] Further, the hinge ears 11 are fixed on the first panel 1 and the second panel 2 by pouring.

[0066] Further, the joint is arranged between the horizontal bridge-wise support assembly and the longitudinal bridge-wise support assembly adjacent to the horizontal bridge-wise support assembly.

[0067] Further, the joint connector is a wet joint 6, and the wet joint 6 is used to connect the joints between the adjacent first panel 1 and the second panel 2, the adjacent two first panels 1 and the adjacent two second panels 2. Multiple wet joints 6 are arranged to avoid the cracking problem caused by shrinkage and creep of large-volume concrete during on-site pouring.

[0068] Further, the construction procedure of the modular hinged prefabricated and assembled truss combined beam structure of the present application is as follows:

[0069] Step one, the full-section bridge is reasonably divided according to the actual situation on site, and each panel and each member is prefabricated in the factory;

[0070] Step two, the panels and the members are assembled on site to form a Figure 3 ,Figure 4 The independent assembly shown in the figure;

[0071] Step three, as shown in the figure, the longitudinal bridge assembly is hoisted, and the two adjacent assemblies after the longitudinal bridge hoisting are connected through the connecting piece; Figure 5

[0072] Step four, as shown in the figure, the longitudinal bridge assembly is hoisted, and the two adjacent assemblies after the longitudinal bridge hoisting are connected through the connecting piece; Figure 20

[0073] Step five, pouring the wet joint 6;

[0074] Step six, after the wet joint 6 is completely hardened, the third longitudinal bridge truss 12 in the connecting piece is removed;

[0075] Step seven, complete the construction.

[0076] Further, when the transverse bridge assembly is assembled, as shown in the figure, the rod filled with dots in the figure is the rod that needs to be assembled between the two adjacent assemblies. Figure 20

[0077] After determining the width of the bridge section, the full-section bridge is reasonably divided according to the actual situation on site, and the corresponding erection scheme is formulated, and the first panel 1 and the second panel 2 after the division are pre-buried with hinge ears 11 according to a certain size. The hinge ear 11 is pre-buried in the first panel 1 and the second panel 2 at one end, so that the hinge ear 11 is an integral part of the concrete bridge panel, and a through hole is formed at the center position of the other end, so that each truss rod can be connected with the concrete bridge panel under the action of the pin shaft 10, and the fixed connection between the truss rod and the concrete bridge panel is avoided. The truss rods are connected by hinging, the erection of the bridge body is completed, and after the erection is completed, the first panel 1 and the second panel 2, the joints between the two adjacent first panels 1 and the two adjacent second panels 2 are poured with concrete strips, and finally the bridge is erected. The fixed end constraint is converted into a fixed hinge constraint that allows the concrete bridge panel to rotate freely, which can effectively solve the problem of fatigue cracking of the concrete bridge panel caused by the large difference in stiffness at the intersection position of the truss rod and the concrete bridge panel. At the same time, the full-element factory prefabrication and modular rapid assembly mode of the bridge structure are realized in the present application, which reduces the construction difficulty and speeds up the construction speed.

[0078] ​​​In the description of the present application, it needs to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0079] The above-described embodiments are only to describe the preferred modes of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A modular jointed prefabricated assembled truss composite beam structure, characterized in that: Comprising, The main truss rod (3); The panel assembly is provided with a plurality of panel assemblies arranged along the longitudinal bridge direction; a plurality of main truss rods (3) are arranged below the panel assembly along the transverse bridge direction, and two adjacent main truss rods (3) are hinged along the longitudinal bridge direction; a plurality of seams are formed on the panel assembly, and the panel assembly is divided into a first panel (1) and a second panel (2) by the seams, and at least two main truss rods (3) are arranged below the first panel (1) and the second panel (2); The longitudinal bridge support assembly is hinged to the top end of the main truss rod (3), and the top end of the longitudinal bridge support assembly is hinged to the bottom end of the first panel (1) and the second panel (2), and two adjacent longitudinal bridge support assemblies are hinged by a connecting piece along the longitudinal bridge direction; The transverse bridge support assembly is arranged between any two adjacent main truss rods (3), and the two ends of the transverse bridge support assembly are hinged to the adjacent main truss rods (3), and the top end of the transverse bridge support assembly is hinged to the first panel (1) and the second panel (2); The seam connecting piece connects adjacent first panels (1) and second panels (2), adjacent first panels (1), and adjacent second panels (2); The longitudinal bridge support assembly includes at least two first longitudinal bridge trusses (9), and a second longitudinal bridge truss (8) is arranged between the two first longitudinal bridge trusses (9), and the first longitudinal bridge truss (9) is hinged to the first panel (1) and the second panel (2); The connecting piece includes the second longitudinal bridge truss (8) and a third longitudinal bridge truss (12); The transverse bridge support assembly includes a first transverse bridge truss (5), a second transverse bridge truss (7), and a third transverse bridge truss (4), the third transverse bridge truss (4) is arranged between two adjacent main truss rods (3), the two ends of the third transverse bridge truss (4) are hinged to the two adjacent main truss rods (3), the two ends of the third transverse bridge truss (4) are hinged to the first transverse bridge truss (5) and the second transverse bridge truss (7), the end of the first transverse bridge truss (5) and the end of the second transverse bridge truss (7) are hinged to the bottom end of the first panel (1) and the second panel (2), and the end of the first transverse bridge truss (5) and the end of the second transverse bridge truss (7) are hinged; The first panel (1) and the second panel (2) are hinged to a plurality of hinge ears (11) at the bottom end, and the first longitudinal bridge truss (9), the second longitudinal bridge truss (8), the third longitudinal bridge truss (12), the first transverse bridge truss (5), and the second transverse bridge truss (7) are hinged to the hinge ears (11) through a pin shaft (10); The seam connecting piece is a wet seam (6); The construction process of the modularly hinged prefabricated and assembled truss combined beam structure: Step one, according to the actual situation, the full cross-section bridge is reasonably divided, and each panel and each rod is prefabricated in the factory; Step two, assembling the panel and the rod at the construction site to form an independent assembly; Step three, hoisting the assembly in the longitudinal bridge direction, and connecting the two adjacent assemblies after the longitudinal bridge direction hoisting is in place through the connecting piece; Step four, assembling the assembly after the longitudinal bridge direction hoisting in the transverse bridge direction, and perfecting the transverse bridge direction support assembly between the two adjacent assemblies to make the transverse bridge direction connection into a whole; Step five, pouring the wet joint (6); Step six, after the wet joint (6) is completely hardened, removing the third longitudinal bridge direction truss rod (12) in the connecting piece; Step seven, completing the construction.

2. The modular articulated pre-fabricated assembly truss composite beam structure according to claim 1, characterized in that: The bottom end of the second longitudinal bridge direction truss rod (8) is hinged with the bottom end of an adjacent first longitudinal bridge direction truss rod (9), and the top end of the second longitudinal bridge direction truss rod (8) is hinged with the top end of another adjacent first longitudinal bridge direction truss rod (9); the first longitudinal bridge direction truss rod (9) located on both sides of the hinged points of the two adjacent main truss rods (3) in the longitudinal bridge direction is hinged through the connecting piece.

3. The modular articulated pre-fabricated assembly truss composite beam structure according to claim 2, characterized in that: One end of the second longitudinal bridge direction truss rod (8) is hinged with the top end of the first longitudinal bridge direction truss rod (9) located on one side of the hinged points of the two adjacent main truss rods (3), and the other end of the second longitudinal bridge direction truss rod (8) is hinged with the bottom end of the first longitudinal bridge direction truss rod (9) located on the other side of the hinged points of the two adjacent main truss rods (3); the two ends of the third longitudinal bridge direction truss rod (12) are respectively hinged with the top ends of the two second longitudinal bridge direction truss rods (8).

4. The modular articulated pre-fabricated trussed composite beam structure according to claim 1, wherein: The top end and the inner side of the main truss rod (3) located on both sides of the transverse bridge direction are fixedly connected with a hinge lug (11), and the top end and the two sides of the main truss rod (3) located in the middle of the transverse bridge direction are fixedly connected with a hinge lug (11); the first transverse bridge direction truss rod (5), the second transverse bridge direction truss rod (7), the third transverse bridge direction truss rod (4), the first longitudinal bridge direction truss rod (9), and the second longitudinal bridge direction truss rod (8) are all hinged with the hinge lug (11) through a pin shaft (10).

5. The modular articulated pre-fabricated assembly truss composite beam structure according to claim 1, characterized in that: The joint is arranged between the transverse bridge direction support assembly and the longitudinal bridge direction support assembly adjacent to the transverse bridge direction support assembly.

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