Bailey beam intersection flat bracing structure

Abstract

This utility model relates to the field of Bailey beam installation technology, and provides a horizontal bracing structure at the intersection of Bailey beams, including a first support beam, a connecting beam, and a second support beam. The first support beam includes a first branch beam and a second branch beam, which are aligned on the same straight line. One end of the connecting beam is connected to the first branch beam, and the other end is connected to the second branch beam. The second support beam intersects with the first support beam, and the second support beam is at the same height as the first support beam, abutting against the connecting beam. By intersecting the first and second support beams at the same height and using the connecting beam to achieve abutment support between them, the overall height of the structure is effectively reduced. At the same time, the horizontal bracing truss enhances the stability of the nodes, offering advantages such as reduced construction costs, increased structural stiffness, and adaptability to space-constrained environments.

Description

Technical Field

[0001] This utility model relates to the field of Bailey beam installation technology, and in particular to the horizontal connection structure at the intersection of Bailey beams. Background Technology

[0002] Bailey bridges, as a modular steel structure, are widely used in temporary support systems for bridge construction due to their advantages such as convenient assembly and high load-bearing capacity. In construction scenarios such as building box girder supports, multiple layers of Bailey bridges are often arranged in a cross pattern to meet load transfer requirements. The traditional approach is to directly stack upper and lower layers of Bailey bridges, resulting in an increased overall height of the support system. This not only increases material usage and construction costs but also creates installation difficulties in confined construction environments. Existing cross joints often use simple overlapping methods and lack effective lateral connection devices, leading to insufficient overall structural stability. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a horizontally connected structure at the intersection of Bailey beams, designed to reduce the overall height of the support system and improve structural stability.

[0004] The Bailey beam cross-position horizontal connection structure according to an embodiment of the present utility model includes:

[0005] The first support beam includes a first branch beam and a second branch beam, and the first branch beam and the second branch beam are on the same straight line;

[0006] A connecting beam, one end of which is connected to the first support beam and the other end of which is connected to the second support beam;

[0007] The second support beam is intersected with the first support beam and is at the same height as the first support beam. The second support beam abuts against the connecting beam.

[0008] According to the Bailey beam cross-position horizontal bracing structure of this utility model embodiment, the first support beam and the second support beam are set at the same height and the connecting beam is used to achieve the abutment support between the two, which effectively reduces the overall height of the structure. At the same time, the horizontal bracing truss enhances the stability of the nodes, which has the advantages of reducing construction costs, improving structural rigidity and adapting to space-constrained environments.

[0009] According to one embodiment of the present invention, the connecting beam includes two sets of parallel horizontal trusses, the horizontal trusses comprising:

[0010] The upper chord is connected at one end to the first support beam and at the other end to the second support beam.

[0011] The lower chord is arranged parallel to the upper chord, with one end connected to the first support beam and the other end connected to the second support beam;

[0012] At least two vertical bars, which are respectively connected to the upper chord and the lower chord, and the at least two vertical bars are spaced apart along the extension direction of the upper chord;

[0013] At least two diagonal braces, one end of which is connected to the upper chord and the other end of which is connected to the lower chord, and every two diagonal braces are arranged in a cross configuration between two adjacent vertical bars.

[0014] According to one embodiment of the present invention, the second support beam passes between the upper chord and the lower chord.

[0015] According to one embodiment of the present invention, the two intersecting diagonal bars are a first bar and a second bar, the first bar is provided with a clearance hole, and the second bar passes through the clearance hole.

[0016] According to one embodiment of the present invention, the first rod body includes a first segment, a second segment, and two connecting pieces. One end of each connecting piece is connected to one end of the first segment, and the other end of each connecting piece is connected to one end of the second segment. The two connecting pieces, together with the first segment and the second segment, form the clearance hole.

[0017] According to one embodiment of the present invention, the diagonal bar is an integrally formed structure.

[0018] According to one embodiment of the present invention, fixing holes are provided at the intersection of the two diagonal rods.

[0019] According to one embodiment of the present invention, the horizontal truss further includes a plurality of adjusting blocks, each adjusting block being disposed at one end of the diagonal member, and one end of the diagonal member being hinged to the adjusting block. One end of the diagonal member is connected to the upper chord via the adjusting block, and the other end of the diagonal member is connected to the lower chord via the adjusting block. The adjusting block is adapted to adjust the installation position along the length direction of the upper chord or the lower chord, and the diagonal member is adapted to extend and retract to adjust its own length.

[0020] According to one embodiment of the present invention, both the upper chord and the lower chord are provided with a plurality of adjustment holes spaced apart along the length direction, and the adjustment block is connected to the upper chord or the lower chord through at least one of the adjustment holes.

[0021] According to one embodiment of the present invention, the inclined rod and the adjusting block are connected by turnbuckles.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the horizontal connection structure at the intersection of Bailey beams provided in this embodiment of the utility model.

[0025] Figure 2 This is an exploded view of the horizontal connection structure at the intersection of Bailey beams provided in this embodiment of the utility model.

[0026] Figure 3 This is a schematic diagram of the connecting beam provided in an embodiment of the present utility model.

[0027] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0028] Figure 5 This is a structural schematic diagram of a connecting beam provided in another embodiment of the present invention.

[0029] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle.

[0030] Figure label:

[0031] 1. First support beam; 11. First branch beam; 12. Second branch beam; 2. Connecting beam; 20. Horizontal truss; 21. Upper chord; 22. Lower chord; 23. Adjustment hole; 24. Vertical member; 25. Diagonal member; 251. First member; 2511. First section; 2512. Second section; 2513. Connecting piece; 2514. Clearance hole; 252. Second member; 253. Fixing hole; 26. Adjusting block; 27. Turnbuckle; 3. Second support beam. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0033] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0035] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] In existing technologies, Bailey bridges are a commonly used structure in bridge engineering, and the traditional formwork installation uses a two-layer stacked arrangement. This double-layer structure increases the overall height of the support system, making it difficult to meet spatial constraints in height-constrained scenarios such as bridge construction and tunnel support. For example, in urban elevated bridge expansion projects, the clearance height under the bridge is limited, and the traditional double-layer Bailey bridge support system cannot adapt to the construction environment.

[0038] Therefore, please refer to the following: Figure 1 and Figure 2 This application proposes a horizontally connected structure at the intersection of Bailey beams, comprising: a first support beam 1 including a first branch beam 11 and a second branch beam 12 on the same straight line; a connecting beam 2 connecting the first branch beam 11 and the second branch beam 12 at both ends respectively; and a second support beam 3 intersecting with the first support beam 1 at the same height and abutting against the connecting beam 2.

[0039] The first support beam 1 refers to the continuous load-bearing structure formed by two straight support beams, which can be achieved by splicing standard Bailey bridge units to ensure the continuity of axial load transmission. The connecting beam 2 refers to the truss structure that laterally connects the two support beams, which can be achieved by using a parallel double-chord truss to enhance the overall bending resistance of the first support beam 1. The second support beam 3 refers to the load-bearing component that intersects the first support beam 1 in a plane, which can be arranged by horizontally rotating a Bailey bridge of the same specification; the intersection angle can be adjusted according to project requirements. The contact relationship refers to the surface contact between the second support beam 3 and the connecting beam 2, which can be achieved by setting limiting grooves or friction pads to ensure effective shear force transmission at the intersection node.

[0040] Specifically, the first support beam 11 and the second support beam 12 form a continuous support system through the connecting beam 2, eliminating the weak points in the connection of traditional segmented structures. When the second support beam 3 intersects with the first support beam 1 in the horizontal plane, its bottom chord and the lower chord 22 of the connecting beam 2 form an overlapping area, which can achieve in-plane load transfer through lap joints or bolted connections. The truss structure of the connecting beam 2 simultaneously bears bending moments and shear forces from the support beams in two directions at the intersection node, and the arrangement of its vertical members 24 and diagonal members 25 can disperse stress concentration. The intersecting arrangement of the second support beam 3 and the first support beam 1 shares the same installation plane, avoiding vertical height superposition.

[0041] Compared to existing technologies, traditional solutions using stacked Bailey beams double the support height, while this solution uses a planar intersecting arrangement to allow both support systems to share the same installation height. Existing technologies require dedicated connectors at the intersection nodes, leading to structural complexity; this solution utilizes the truss structure of connecting beam 2 to directly form the abutment support surface, simplifying the node construction. Traditional double-layer structures exhibit eccentric bending moments during load transfer; this planar intersecting design ensures uniform load distribution along the horizontal plane, reducing localized stress.

[0042] Through the above technical solution, this application effectively solves the problem of excessive height in Bailey bridge support structures, compressing the traditional double-layer structure into a single-layer planar layout while maintaining the same load-bearing capacity. The abutment design at the intersection nodes enables in-plane load transfer, avoiding the risk of structural instability. This solution is particularly suitable for height-constrained scenarios such as bridge jacking construction and temporary tunnel support, providing more flexible spatial adaptability for engineering implementation.

[0043] like Figure 3 and Figure 4 As shown, this application further proposes that the connecting beam 2 includes two sets of parallel horizontal trusses 20. The horizontal trusses 20 include an upper chord 21, a lower chord 22, at least two vertical members 24, and at least two diagonal members 25. One end of the upper chord 21 is connected to the first support beam 11, and the other end is connected to the second support beam 12. The lower chord 22 is arranged parallel to the upper chord 21, with one end connected to the first support beam 11 and the other end connected to the second support beam 12. The vertical members 24 connect the upper chord 21 and the lower chord 22 respectively, and at least two vertical members 24 are spaced apart along the extension direction of the upper chord 21. One end of the diagonal member 25 is connected to the upper chord 21, and the other end is connected to the lower chord 22. Every two diagonal members 25 are arranged in a crisscross pattern between two adjacent vertical members 24.

[0044] Among them, the horizontal truss 20 refers to a spatial truss structure composed of parallel upper chords 21 and lower chords 22, which can be implemented by welding or bolting, and is used to form a stable support frame in the horizontal direction. The upper chord 21 is a transverse member located at the top of the truss, which can be made of I-beams or channel steel, and is used to bear tensile loads and form a rigid connection with the first support beam 11 and the second support beam 12. The lower chord 22 is a transverse member parallel to the upper chord 21 and located at the bottom of the truss, which can be made of the same material as the upper chord 21, and is used to bear compressive loads and is fixed to the support beams. The vertical members 24 are vertical members perpendicular to the upper and lower chords, which can be made of angle steel or square tubing, and are used to connect the upper chord 21 and lower chord 22 and enhance the vertical stiffness of the truss. The diagonal members 25 are intersecting members arranged diagonally between adjacent vertical members 24, which can be made of round steel or flat steel, and are used to form a triangular stable structure to distribute loads and suppress truss deformation.

[0045] Specifically, two sets of parallel trusses 20 are arranged in parallel between the first beam 11 and the second beam 12, and are fixed to the ends of the two beams by upper chord members 21 and lower chord members 22, respectively, forming a continuous horizontal support. Vertical members 24 are arranged at intervals along the extension direction of the upper chord members 21, connecting the upper chord members 21 and lower chord members 22 into an integral frame, enhancing the bending resistance of the truss. Cross diagonal members 25 are arranged between adjacent vertical members 24, with both ends of the diagonal members 25 connected to the upper chord members 21 and lower chord members 22, respectively, forming multiple continuous triangular structures. When external loads are applied to the supporting beams, the cross diagonal members 25 transfer the load to the upper chord members 21 and lower chord members 22 through tension and compression, avoiding local stress concentration; the vertical members 24 restrict the relative displacement of the upper chord members 21 and lower chord members 22, preventing the truss from bending laterally. Through the coordinated action of the upper chord 21 and lower chord 22, and the vertical member 24 and the diagonal member 25, the horizontal truss 20 achieves uniform load distribution and structural stability in a single-layer space without the need for multiple layers of support beams.

[0046] Through the above technical solution, this application achieves stable support at the intersection of Bailey beams within a single-layer height range, avoiding the structural height exceeding the limit due to double-layer stacking. The combination of the internal intersecting diagonal members 25 and vertical members 24 of the parallel truss 20 effectively suppresses truss deformation, ensuring that the connecting beam 2 maintains overall rigidity when bearing lateral loads. The arrangement of the two sets of parallel trusses further disperses external loads, improves the overturning resistance and load-bearing efficiency of the support structure, and meets the construction needs in narrow spaces or height-restricted conditions.

[0047] Please refer to the reference. Figure 1 and Figure 3 This application further proposes that a second support beam 3 be inserted between the upper chord 21 and the lower chord 22.

[0048] The upper chord 21 refers to the horizontally extending member at the top of the horizontal truss 20, which can be made of I-beams or channel steel profiles. It connects with the first support beam 11 and the second support beam 12 to form the main truss structure. The lower chord 22 refers to the member at the bottom of the horizontal truss 20 that is parallel to the upper chord 21. It can be made of the same specifications as the upper chord 21 and forms a stable truss space through the vertical members 24 and the diagonal members 25. "Throughing" refers to the second support beam 3 horizontally penetrating the internal space of the horizontal truss 20. This can be achieved by reserving a channel between the upper chord 21 and the lower chord 22, allowing the end of the second support beam 3 to extend to the outside of the horizontal truss 20 and connect with the adjacent structure.

[0049] Specifically, the second support beam 3 transversely penetrates the frame space formed by the upper chord 21 and lower chord 22 of the horizontal truss 20 at the intersection, placing the second support beam 3 and the first support beam 1 on the same plane. Since the horizontal truss 20 has an open space composed of vertical members 24 and diagonal members 25, the second support beam 3 can be embedded in this space without needing to be superimposed on the first support beam 1. This through-beam arrangement allows the two intersecting support beams to share the same mounting plane, achieving mechanical transfer at the intersection node through the internal space of the horizontal truss 20. This ensures the stability of the support structure while eliminating the height increment caused by the superposition of upper and lower layers in traditional structures.

[0050] Through the above technical solution, this application effectively solves the problem of excessive support height caused by the stacked arrangement of traditional Bailey beam cross structures, so that the cross node can complete the bidirectional support force transmission within a single layer height, which meets the construction scenario's restriction requirements on support height. At the same time, the structural stability of the cross node is enhanced by reusing the internal space of the truss.

[0051] like Figure 4 As shown, this application further proposes two intersecting diagonal bars 25, namely a first bar 251 and a second bar 252. The first bar 251 is provided with a clearance hole 2514, and the second bar 252 is disposed through the clearance hole 2514.

[0052] The clearance hole 2514 refers to a through hole formed on the main structure of the first rod 251. Specifically, it can be formed by stamping or welding connecting piece 2513 to create the hole. The size of the hole matches the cross-sectional size of the second rod 252. The second rod 252 passing through the clearance hole 2514 means that the rod of the second rod 252 passes through the clearance hole 2514 and maintains a clearance fit with the hole wall.

[0053] Specifically, when the first rod 251 and the second rod 252 are arranged intersecting between the vertical rods 24, the first rod 251 provides a passageway for the second rod 252 through its clearance hole 2514. During assembly, the second rod 252 passes through the clearance hole 2514 and remains in non-contact with the hole wall, thus forming a three-dimensional intersecting structure in space. This construction method maintains the cross-support function of the diagonal rods 25 while avoiding structural interference caused by direct stacking of rods. Under stress, the two rods transmit loads through their respective connection ends, and the non-contact state at the clearance hole 2514 eliminates frictional losses between the rods.

[0054] Through the above technical solution, this application effectively resolves the conflict in the arrangement of the intersecting diagonal members 25 within a limited space, ensuring the overall stability of the truss structure. The non-contact connection method between the intersecting members avoids the frictional losses caused by traditional overlapping structures, extending the service life of the structure. The matching structure between the clearance hole 2514 and the through rod simplifies the construction positioning process and improves on-site assembly efficiency.

[0055] This application further proposes that the first rod body 251 is composed of a first segment 2511, a second segment 2512 and two connecting pieces 2513. One end of the connecting piece 2513 is connected to one end of the first segment 2511 and the other end is connected to one end of the second segment 2512. The two connecting pieces 2513, together with the first segment 2511 and the second segment 2512, form an avoidance hole 2514.

[0056] The first segment 2511 and the second segment 2512 refer to the diagonal brace 25 being divided into two independent main parts. These can be formed by cutting steel with a uniform cross-section to maintain the integrity of the force transmission path of the diagonal brace 25. The connecting piece 2513 is a plate-like structure connecting the two main parts. It can be made of stamped steel plate and welded together to form a clearance hole 2514 while maintaining structural strength. The clearance hole 2514 is a through space formed by the connecting piece 2513 and the two main parts. The hole diameter can be controlled by adjusting the size and installation position of the connecting piece 2513 to provide a contactless passage for the second rod 252.

[0057] Specifically, during installation, the second rod 252 is pre-placed in the gap between the first segment 2511 and the second segment 2512. Then, two connecting pieces 2513 are respectively connected to the ends of the first segment 2511 and the second segment 2512, surrounding the second rod 252 and forming regular clearance holes 2514. Because the connecting pieces 2513 are symmetrically distributed on both sides of the second rod 252, the load-bearing capacity of the first rod 251 is maintained through the synergistic effect of the two main sections and the connecting pieces 2513. The second rod 252 can pass directly through the clearance holes 2514 without requiring drilling or bending, thus avoiding structural interference at the intersection.

[0058] Through the above technical solution, this application solves the installation difficulty caused by spatial interference of the intersecting diagonal braces 25, realizes the rapid positioning and interference-free assembly of the diagonal braces 25 at the intersection position, and maintains the overall rigidity and load-bearing performance of the structure.

[0059] This application further proposes that the diagonal brace 25 is a one-piece molded structure.

[0060] The one-piece molding structure refers to a complete and continuous component formed through a single processing step, which can be achieved through casting, forging, or 3D printing. This structure directly enhances the integrity of the diagonal brace 25 by eliminating segmented connection nodes, thereby avoiding stress concentration or assembly errors caused by multi-segment splicing.

[0061] Specifically, the diagonal member 25 is manufactured using a one-piece molding process, with no splicing gaps or welding interfaces. Its overall shape and dimensions are directly formed through molds or CNC machining. In the horizontal truss 20, the two ends of the diagonal member 25 are connected to the upper chord 21 and the lower chord 22, respectively. The intersecting diagonal members 25 are stably fixed through fixing holes 253. Because the diagonal member 25 is a single continuous structure, its force path is complete, avoiding the risk of support failure caused by loose or deformed connectors in traditional segmented diagonal members 25, while also reducing on-site assembly steps.

[0062] Through the above technical solution, this application solves the problem of structural complexity and insufficient connection stability caused by the multi-segment splicing of the diagonal brace 25. At the same time, it improves construction efficiency by reducing assembly processes and ensures the overall reliability of the horizontal truss 20 under cross-support conditions.

[0063] This application further proposes that fixing holes 253 are provided at the intersection of the two diagonal bars 25.

[0064] The fixing hole 253 refers to a through hole or threaded hole located at the intersection of the diagonal braces 25. It can be formed by drilling or stamping in the overlapping area of ​​the diagonal braces 25, and is used to insert mechanical connectors such as bolts, rivets, or pins to fix the diagonal braces 25 together. The intersection point refers to the overlapping area formed when two diagonal braces 25 are arranged crosswise in the horizontal truss 20. Specifically, the inclination angle and length of the diagonal braces 25 can be adjusted to form an intersection point between adjacent vertical members 24. The fixing hole 253 at the intersection point allows the two diagonal braces 25 to form a rigid connection node at that location.

[0065] Specifically, in the horizontal truss 20, when two diagonal members 25 are arranged intersecting between adjacent vertical members 24, the intersection point is secured by a connector, such as a bolt or pin, inserted through a pre-set fixing hole 253, mechanically locking the two diagonal members 25 at the intersection point. The shear force generated by the intersecting diagonal members 25 under load is transmitted to the connector through the fixing hole 253, preventing relative sliding or misalignment between the diagonal members 25. Because the position of the intersection point of the diagonal members 25 is fixed, the overall geometry of the horizontal truss 20 remains stable under stress, thereby reducing truss deformation or redundant height caused by loose connections.

[0066] Through the above technical solution, this application solves the problems of deformation of the horizontal truss 20 and structural redundancy caused by unstable connection at the intersection of the diagonal braces 25. The intersecting diagonal braces 25 form rigid connection nodes through fixing holes 253, ensuring that the horizontal truss 20 maintains a stable geometric shape when bearing load, thereby reducing the overall height of the support structure and meeting the needs of low-height support systems during construction.

[0067] Please refer to the reference. Figure 5 and Figure 6 This application further proposes that the horizontal truss 20 includes multiple adjusting blocks 26, each adjusting block 26 is disposed at one end of the diagonal member 25, the diagonal member 25 is hinged to the adjusting block 26, one end of the diagonal member 25 is connected to the upper chord 21 through the adjusting block 26, and the other end is connected to the lower chord 22 through the adjusting block 26. The adjusting block 26 can adjust the installation position along the length direction of the upper chord 21 or the lower chord 22, and the diagonal member 25 can extend and retract to adjust its own length.

[0068] The adjusting block 26 is a positioning component used to connect the diagonal bar 25 and the chord bar. It can be implemented as a metal block with hinge holes, allowing the mounting base of the diagonal bar 25 to be changed by moving the adjusting block 26. The hinge refers to a rotatable connection between the diagonal bar 25 and the adjusting block 26, which can be implemented using a pin connection, allowing the angle of the diagonal bar 25 to be adjusted as the position of the adjusting block 26 changes. The adjusting holes 23 are positioning holes spaced apart along the length of the upper chord bar 21 and lower chord bar 22, which can be implemented using equally spaced circular through holes, providing multiple fixed position options for the adjusting block 26. The telescopic adjustment means that the diagonal bar 25 has an adjustable length function, which can be implemented using a sleeve-type telescopic rod or a threaded adjusting rod, allowing the length of the diagonal bar 25 to adapt to different installation spacings.

[0069] Specifically, when the distance between the first support beam 11 and the second support beam 12 changes, the adjusting block 26 can move along the upper chord 21 or the lower chord 22 to the corresponding adjusting hole 23 and be fixed. The diagonal brace 25 adapts to the angle change after the displacement of the adjusting block 26 through hinge, and compensates for the length difference caused by the change in distance through its own telescopic adjustment. Thus, the overall structure of the horizontal truss 20 can adapt to different support requirements without reassembly, and the upper chord 21 and the lower chord 22 can always stably overlap the outer wall of the first support beam 1, avoiding structural interference.

[0070] Through the above technical solution, this application solves the installation adaptation problem caused by the change in the distance between the first support beam 11 and the second support beam 12. By adjusting the position of the adjusting block 26 and coordinating the expansion and contraction of the diagonal bar 25, the horizontal truss 20 can flexibly adapt to the support requirements under different working conditions. Adjustment can be completed without disassembling or stacking the structure, which significantly improves construction efficiency and reduces modification costs.

[0071] This application further proposes that both the upper chord 21 and the lower chord 22 are provided with a plurality of adjustment holes 23 at intervals along the length direction, and the adjustment block 26 is connected to the upper chord 21 or the lower chord 22 through at least one adjustment hole 23.

[0072] The adjusting holes 23 are holes spaced apart along the length of the upper chord 21 and lower chord 22. They can be created using drilling or punching processes, and the hole spacing can be set to a fixed value according to construction requirements. The adjusting holes 23 allow the adjusting blocks 26 to be installed at different positions, achieving lateral position adjustment. The adjusting blocks 26 are metal components with connecting interfaces, specifically bolts or pins, that connect to the adjusting holes 23. By inserting the adjusting blocks 26 into different positions of the adjusting holes 23, displacement along the length of the chord is achieved, thereby changing the installation base point of the diagonal brace 25.

[0073] Specifically, the surfaces of the upper chord 21 and lower chord 22 are machined with equally spaced adjusting holes 23, forming discrete positioning references. The adjusting block 26 is connected to any one of the adjusting holes 23 via a pin or bolt. When the installation position of the diagonal member 25 needs adjustment, simply release the current adjusting hole 23, move the adjusting block 26 to the target adjusting hole 23, and re-fix it. This structure allows for multi-level adjustment of the hinge point of the diagonal member 25 along the chord axis. For example, when installing a cross support beam, the most suitable adjusting hole 23 can be selected based on the abutment position of the second support beam 3, so that the extension / retraction adjustment range of the diagonal member 25 adapts to the cross angle of the support beam.

[0074] In some specific embodiments, the adjusting hole 23 may be designed as an oblong hole to accommodate installation errors, and an anti-loosening washer is used between the adjusting block 26 and the hole to ensure connection stability. The adjusting block 26 may also be equipped with a quick-locking device, such as an eccentric wheel lock, to achieve tool-free manual adjustment.

[0075] Through the above technical solution, this application realizes the lateral position adjustment of the adjustment block 26 on the upper chord 21 and the lower chord 22, so that the installation base point of the diagonal bar 25 can match the support beam layout with different intersection angles, which enhances the adaptability of the horizontal connection structure to different construction scenarios, and avoids the problem of insufficient length or interference of the diagonal bar 25 due to the change of the intersection position of the support beam.

[0076] This application further proposes that the diagonal bar 25 and the adjusting block 26 be connected by turnbuckle 27.

[0077] Among them, turnbuckle 27 refers to a fastener with a two-way thread structure, which can be implemented by a rod-shaped connector with left-hand and right-hand threads. The synchronous extension and retraction of the threaded rods at both ends is achieved by rotating the intermediate sleeve. This structure makes the connection length between the inclined rod 25 and the adjusting block 26 adjustable.

[0078] The adjusting block 26 is a connecting component used to install the end of the diagonal bar 25. It can be implemented as a metal block with mounting holes, forming a movable connection with the end of the diagonal bar 25 via a hinge. This component can slide along the extension direction of the upper chord 21 or the lower chord 22, thereby changing the installation position of the diagonal bar 25.

[0079] Specifically, the two ends of the turnbuckle 27 are threadedly connected to the ends of the diagonal brace 25 and the adjusting block 26, respectively. When the length of the diagonal brace 25 needs to be adjusted, the threaded rods at both ends are synchronously extended and retracted by rotating the middle sleeve of the turnbuckle 27, thereby changing the overall length of the diagonal brace 25. At this time, the adjusting block 26 can move along the sliding track of the upper chord 21 or the lower chord 22, so that the installation angle and extension / retraction of the diagonal brace 25 are adjusted synchronously. This mechanical linkage adjustment method allows the arrangement of the diagonal braces 25 at the intersection of the horizontal truss 20 to adapt to the installation requirements of different Bailey beam spacings.

[0080] Through the above technical solution, this application achieves stepless adjustment of the connection length between the diagonal brace 25 and the supporting component, solving the installation position conflict problem caused by the traditional fixed connection method. When there is a height restriction at the intersection of Bailey beams, the length of the diagonal brace 25 can be shortened by rotating the turnbuckle 27, which can avoid interference between the diagonal brace 25 and the second supporting beam 3; when it is necessary to increase structural stability, the length of the diagonal brace 25 can be extended by rotating the turnbuckle 27 in the opposite direction, so that the diagonal brace 25, the upper chord 21 and the lower chord 22 form a tighter triangular support structure.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A horizontally connected structure at the intersection of Bailey beams, characterized in that, include: The first support beam includes a first branch beam and a second branch beam, and the first branch beam and the second branch beam are on the same straight line; A connecting beam, one end of which is connected to the first support beam and the other end of which is connected to the second support beam; The second support beam is intersected with the first support beam and is at the same height as the first support beam. The second support beam abuts against the connecting beam.

2. The Bailey beam cross-position horizontal connection structure according to claim 1, characterized in that, The connecting beam includes two sets of parallel horizontal trusses, the horizontal trusses comprising: The upper chord is connected at one end to the first support beam and at the other end to the second support beam. The lower chord is arranged parallel to the upper chord, with one end connected to the first support beam and the other end connected to the second support beam; At least two vertical bars, which are respectively connected to the upper chord and the lower chord, and the at least two vertical bars are spaced apart along the extension direction of the upper chord; At least two diagonal braces, one end of which is connected to the upper chord and the other end of which is connected to the lower chord, and every two diagonal braces are arranged in a cross configuration between two adjacent vertical bars.

3. The Bailey beam cross-position horizontal connection structure according to claim 2, characterized in that, The second support beam passes between the upper chord and the lower chord.

4. The Bailey beam cross-position horizontal connection structure according to claim 2, characterized in that, The two intersecting diagonal bars are a first bar and a second bar. The first bar has a clearance hole, and the second bar passes through the clearance hole.

5. The Bailey beam cross-position horizontal connection structure according to claim 4, characterized in that, The first rod body includes a first segment, a second segment, and two connecting pieces. One end of each connecting piece is connected to one end of the first segment, and the other end of each connecting piece is connected to one end of the second segment. The two connecting pieces, together with the first segment and the second segment, form the clearance hole.

6. The Bailey beam cross-position horizontal connection structure according to claim 2, characterized in that, The diagonal brace is a one-piece molded structure.

7. The Bailey beam cross-position horizontal connection structure according to claim 2, characterized in that, Fixing holes are provided at the intersection of the two diagonal rods.

8. The Bailey beam cross-position horizontal connection structure according to any one of claims 2 to 7, characterized in that, The horizontal truss also includes multiple adjusting blocks, each adjusting block being located at one end of the diagonal member, and one end of the diagonal member being hinged to the adjusting block. One end of the diagonal member is connected to the upper chord via the adjusting block, and the other end of the diagonal member is connected to the lower chord via the adjusting block. The adjusting block is adapted to adjust the installation position along the length direction of the upper chord or the lower chord, and the diagonal member is adapted to extend and retract to adjust its own length.

9. The Bailey beam cross-position horizontal connection structure according to claim 8, characterized in that, Both the upper chord and the lower chord are provided with multiple adjustment holes spaced apart along their length, and the adjustment block is connected to the upper chord or the lower chord through at least one of the adjustment holes.

10. The Bailey beam cross-position horizontal connection structure according to claim 8, characterized in that, The diagonal rod and the adjusting block are connected by turnbuckles.

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