A steel truss girder assembly structure and assembly process

Abstract

The present invention relates to the technical field of steel truss girder assembly, and specifically discloses a steel truss girder assembly structure and an assembly process, which include a placement rack for placing the girder body. Auxiliary racks are arranged on both sides of the girder body, and two groups of guiding devices are horizontally and spacedly arranged on the placement rack; the guiding device includes: a fixed rack installed on the placement rack, a support rack, a guiding rack that are slidably matched with the fixed rack, a driving component connected to the fixed rack, and a pushing member connected to the support rack; the support rack is respectively connected to the driving component and the guiding rack, and is rotationally matched with the guiding rack. The output end of the pushing member is rotationally connected to the guiding rack; a pair of guiding plates are vertically and spacedly arranged at one end of the guiding rack away from the support rack, and the ends of the two guiding plates away from the support rack are inclined in a direction away from each other vertically; the steel truss girder assembly structure and the assembly process of the present invention have the effects of improving the assembly efficiency and the assembly accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of steel truss girder assembly, and particularly relates to a steel truss girder assembly structure and an assembly process. Background Art

[0002] Steel truss girders are widely used in railway and highway bridges, especially in long-span bridges spanning complex terrains such as rivers and canyons. During assembly, the two steel truss girder segments to be assembled are butt-jointed and then connected and fixed through a combined process of welding and bolting.

[0003] A patent document with the publication number CN113123250B discloses a precise assembly adjustment device for steel truss girders, including a sliding mechanism; a deviation rectification mechanism, which is placed on the slideway and rectifies the steel truss girder segments on two sliding cradles in real time. The deviation rectification mechanism includes a plurality of deviation rectification roller assemblies arranged on the slideway and a control unit for adjusting and controlling the plurality of deviation rectification roller assemblies; a towing mechanism, which tows the beam segment to be assembled towards the assembled beam segment for closure; a positioning mechanism, which includes a node positioning component and an end point positioning component. By setting the deviation rectification mechanism, the straightness and height alignment are ensured when the beam segment to be assembled slides towards the assembled beam segment, and then the positioning between adjacent two upper chord rods and between adjacent two splicing rods is realized in sequence through the end point positioning component and the node positioning component, and then subsequent assembly is carried out.

[0004] However, the following problems still exist in this solution. In actual construction and assembly, the positions where steel truss girders are erected are often river channels or uneven roads, resulting in poor practicability of the above adjustment device. And when constructing in a river channel, the floating towing method is usually used to splice steel truss girders. However, since this method uses floating boxes to carry and push the steel truss girder into position, during the process, affected by environmental factors such as water flow fluctuations and wind loads, the steel truss girder may be laterally offset or swing, and it is easy to cause the floating box to shake due to water level changes or uneven flow velocities, which is indirectly transmitted to the steel truss girder. If the above adjustment device is used, the position of the steel truss girder needs to be continuously adjusted. However, since the shaking of the steel truss girder under the action of floating towing is irregular and continuous shaking, the adjustment difficulty is large, which easily causes the erection position of the steel truss girder to deviate, affecting the assembly efficiency and assembly quality. Summary of the Invention

[0005] The present invention provides a steel truss girder assembly structure and an assembly process, aiming to solve the problem that it is difficult to adjust and position due to the shaking of the steel truss girder during the assembly of the steel truss girder by the floating towing method in the related art.

[0006] In a first aspect, the present invention provides a steel truss girder assembly structure, including a placement rack for placing the beam body, auxiliary racks are arranged on both sides of the beam body, and two groups of guiding devices are horizontally and spacedly arranged on the placement rack;

[0007] The guiding device includes: a fixing frame installed on a placing rack, a supporting frame, a guiding frame that are slidably engaged with the fixing frame, a driving assembly connected to the fixing frame, and a pushing member connected to the supporting frame;

[0008] The supporting frame is respectively connected to the driving assembly and the guiding frame, and is rotationally engaged with the guiding frame. The output end of the pushing member is rotationally connected to the guiding frame;

[0009] A pair of guiding plates are arranged at intervals up and down at one end of the guiding frame away from the supporting frame. The ends of the two guiding plates away from the supporting frame are inclined in a direction away from each other along the up and down direction;

[0010] The driving assembly drives the guiding frame to move away from the fixing frame. The pushing members in the two guiding devices synchronously drive the guiding frame to rotate and open. The auxiliary frame moves to cooperate with the supporting frame through the guiding plates and the opened guiding frame. Subsequently, the pushing member drives the guiding frame to rotate until it abuts against the auxiliary frame. The guiding frame and the supporting frame move to drive the beam body to move to be docked with the beam body on the placing rack.

[0011] The effect is that during assembly, a floating towing device is used to transfer the beam body to be assembled to the placing rack. The driving assembly drives the supporting frame to move within the fixing frame, and the supporting frame drives the guiding frame to move. When the guiding frame moves outside the fixing frame, that is, after the guiding frame is separated from the fixing frame, the pushing member drives the two guiding frames to rotate and unfold synchronously, so that the distance between the ends of the two guiding frames becomes larger for the beam body to enter between the two guiding frames. At the same time, under the action of the two guiding plates, the auxiliary frame moves to be flush with the guiding frame. After the beam body moves to cooperate with the supporting frame, the pushing member drives the guiding frame to move until it abuts against the auxiliary frame. At the same time, the floating towing device is separated from the beam body. Then the guiding frame moves back into the fixing frame with the supporting frame, and at the same time drives the beam body to move accordingly until the beam body moves to be docked with the beam body on the placing rack. By setting the guiding frame and the guiding plates, the shaking beam body can be positioned to improve the assembly efficiency and assembly accuracy.

[0012] Preferably, correction wheels are rotatably arranged on both guiding frames. The correction wheels are arranged between the two guiding plates. An elastic member is arranged between the correction wheel and the guiding frame, and the elastic member is used to drive the correction wheel to move and cooperate with the auxiliary frame.

[0013] The effect is that after the beam body moves between the guiding frames, the correction wheels abut against both sides of the auxiliary frame. At the same time, under the action of the elastic member, the beam body is pushed to move to the center of the two guiding frames. At the same time, the elastic member can reduce the shaking amplitude and shaking frequency of the beam body before it cooperates with the supporting frame, so that the beam body can cooperate with the supporting frame.

[0014] Preferably, after the auxiliary frame moves to cooperate with the supporting frame, the correction wheels are separated from the auxiliary frame. The pushing member drives the guiding frame to rotate until it is in the same straight line as the supporting frame, and the guiding frame drives the correction wheels to abut against the side surface of the beam body.

[0015] The effect is that the correction wheel abuts against the side surface of the beam body, and when the support frame and the guide frame move, the correction wheel can assist in pushing the beam body, so that the beam body moves synchronously with the guide frame and the support frame.

[0016] Preferably, a support rod is slidably provided on the guide frame, the elastic member is sleeved on the outside of the support rod, and the correction wheel is rotatably assembled on the support rod.

[0017] The effect is that the support rod is provided to support the correction wheel, thereby improving the stability of the correction wheel when it cooperates with the beam body.

[0018] Preferably, a through slot is provided on the fixed frame, a connecting plate 1 is provided on the supporting frame, and a connecting plate 2 is provided on the guide frame. Connecting plate 1 and connecting plate 2 are both provided on the side of the supporting frame away from the other supporting frame. Connecting plate 1 and connecting plate 2 extend to the outside of the fixed frame through the through slot. The pushing piece is installed on connecting plate 1, and the output end of the pushing piece is rotatably matched with connecting plate 2.

[0019] The effect is that the push piece is arranged on the side of the fixing frame away from the other fixing frame through the connecting plate 1 and the connecting plate 2, so as to reduce the phenomenon that the push piece interferes with the movement of the beam body between the guide frame and the support frame.

[0020] Preferably, the driving assembly includes a power member and a lead screw, the power member is arranged on a fixed frame, the lead screw is rotationally matched with the fixed frame, the lead screw is threadedly connected to the support frame, and the output end of the power member is connected to the lead screw.

[0021] The effect is that the power member drives the lead screw to rotate, and the lead screw drives the support frame to move, thereby adjusting the positions of the support frame and the guide frame.

[0022] Preferably, the support frame includes a connecting plate three, the connecting plate three extends to the outside of the through groove, and the lead screw passes through the connecting plate three and cooperates with the connecting plate three thread.

[0023] The effect is that the power member and the lead screw are arranged on the side of the fixed frame away from the other fixed frame through the connecting plate three, thereby reducing the phenomenon that the power member and the lead screw interfere with the movement of the beam body.

[0024] Preferably, a plurality of rollers are rotatably mounted on the side wall of the fixing frame, and the plurality of rollers are arranged along the sliding direction of the supporting frame, and the supporting frame and the guide frame slide in the fixing frame via the rollers.

[0025] The effect is that the support frame and the guide frame slide in the fixed frame through the rollers. By providing the rollers, the friction force when the support frame and the guide frame move is reduced, thereby facilitating the adjustment of the position of the support frame.

[0026] Preferably, a mounting rod is provided on the placement rack, a winding motor is provided on the mounting rod, a pull rope is wound around the output end of the winding motor, a pull ring is provided at one end of the guide rack away from the support rack, and the end of the pull rope away from the winding motor is tilted downward and connected to the pull ring to support the guide rack.

[0027] The effect is that as the guide frame moves, the winding motor winds up or releases the pull rope, and the guide frame is supported by the pull rope, thereby improving the stability of the guide frame and the beam body when they are matched.

[0028] In a second aspect, the present invention provides a steel truss girder assembly process, using the above-mentioned steel truss girder assembly structure, comprising the following steps:

[0029] Place the beam on the placement rack, use floating equipment to push the beam to be assembled to the placement rack, and make the two beams on the same horizontal plane;

[0030] After the power member drives the guide frame to move to be separated from the fixed frame, the push member drives the two guide frames to rotate and open synchronously;

[0031] The floating and dragging equipment transfers the beam to be assembled between the guide frames, and the guide plate and the correction wheel guide the auxiliary frame into the slide groove on the guide frame;

[0032] Continue to move the beam body, after the auxiliary frame moves to the support frame and the correction wheel is separated from the auxiliary frame, the pusher drives the guide frame to rotate in the opposite direction, so that the guide frame cooperates with the auxiliary frame, and at the same time the correction wheel moves to abut against the side surface of the beam body;

[0033] The power member drives the guide frame to move, and then drives the guide frame to move into the fixed frame again. At the same time, the guide frame drives the beam body to move synchronously through the correction wheel until the beam body to be assembled cooperates with the beam body on the placement frame.

[0034] The effect is that, under the action of the opened guide frame and the guide plate, when the beam moves toward the support frame, the guide beam cooperates with the support frame, and then the push piece drives the guide frame to reset. After the guide frame is reset and moves into the fixed frame again, it assists in clamping and positioning the beam so that the beam can be moved to the specified position for assembly.

[0035] Beneficial effects:

[0036] The present invention provides a guide frame and a guide plate on the guide frame. After the guide frame is separated from the fixed frame, the pusher drives the guide frame to open. Through the opened guide frame and the guide plate, the auxiliary frame on the beam to be assembled is guided to gradually cooperate with the support frame. Then the guide frame rotates and resets, and the beam is driven to move to a specified position through the support frame and the guide frame. The guide frame and the guide plate can be used to guide and position the beam in the case of irregular shaking of the beam, thereby improving the assembly efficiency and assembly quality of the beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a partial explosion schematic diagram of the beam body and the guide frame in the embodiment of the present invention.

[0038] Figure 2 It is a schematic diagram of the state where the guide frame moves to the outside of the fixed frame in the embodiment of the present invention.

[0039] Figure 3 It is a schematic diagram of the state when two guide frames are opened in the embodiment of the present invention.

[0040] Figure 4 It is a schematic diagram of the structure of the guide plate in the embodiment of the present invention.

[0041] Figure 5 It is a schematic diagram of the structure of the correction wheel in the embodiment of the present invention.

[0042] Figure 6 It is a schematic diagram of the state where the correction wheel cooperates with the side surface of the beam body in the embodiment of the present invention.

[0043] Figure 7 It is a schematic diagram of the structure of the support device in the embodiment of the present invention.

[0044] Figure 8 It is a schematic diagram of the structure of the roller in the embodiment of the present invention.

[0045] Reference signs:

[0046] 01, beam body; 02, auxiliary frame; 1, placement frame; 2, fixed frame; 21, through groove; 22, roller; 3, support frame; 31, connecting plate one; 32, connecting plate two; 33, connecting plate three; 4, guide frame; 41, guide plate; 42, support rod; 43, elastic member; 5, drive assembly; 51, power member; 52, lead screw; 6, pushing member; 7, chute; 8, correction wheel; 9, support device; 91, mounting rod; 92, winding motor; 93, pulling rope; 94, pulling ring. Detailed implementation manners

[0047] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0048] A steel truss beam assembly structure disclosed by the present invention. Refer to Figures 1 to 8, the steel truss girder assembly structure includes a placement rack 1, a guiding device, and a supporting device 9. The placement rack 1 is used to place the girder body 01. The guiding device and the supporting device 9 are arranged on the placement rack 1. The supporting device 9 is connected to the guiding device and used to support the guiding device. The guiding device guides and positions the girder body 01 to be assembled. Specifically, a floating towing device is used to transfer the girder body 01 to be assembled to cooperate with the guiding device. The floating towing device is a prior art and will not be elaborated here. At the same time, the girder body 01 to be assembled is transferred to the girder body 01 on the placement rack 1 for subsequent assembly and connection.

[0049] Refer to Figure 1 , Figure 2 , Figure 3 , two groups of guiding devices are arranged at intervals on the placement rack 1. The guiding device includes: a fixed rack 2, a support rack 3, a guiding rack 4, a driving component 5, and a pushing member 6. The fixed rack 2 is welded and fixed on the placement rack 1. The girder body 01 is placed on the fixed rack 2, that is, the girder body 01 is placed on the placement rack 1 through the fixed rack 2. Both the support rack 3 and the guiding rack 4 are slidably matched with the fixed rack 2. The driving component 5 is arranged on the fixed rack 2. The output end of the driving component 5 is connected to the support rack 3. The support rack 3 is arranged between the driving component 5 and the guiding rack 4. The guiding rack 4 is rotatably matched with the support rack 3, and the guiding rack 4 rotates in the horizontal plane. The pushing member 6 is set as a cylinder. The pushing member 6 is arranged on the support rack 3, and the output end of the pushing member 6 is rotatably connected to the guiding rack 4.

[0050] Refer to Figure 4 , Figure 7 , sliding grooves 7 are formed on the inner sides of both the guiding rack 4 and the support rack 3. An auxiliary rack 02 is arranged on the side surface of the girder body 01, and the auxiliary rack 02 is slidably arranged in the sliding groove 7.

[0051] The driving component 5 drives the support rack 3 to slide. The support rack 3 drives the pushing member 6 and the guiding rack 4 to move synchronously. After the guiding rack 4 moves away from the fixed rack 2, the pushing members 6 in the two groups of guiding devices simultaneously drive the guiding rack 4 to rotate in opposite directions. The guiding rack 4 rotates in the direction away from the other guiding rack 4, causing the end away from the support rack 3 to open, thereby increasing the distance between the ends of the guiding rack 4 away from the support rack 3, so that the girder body 01 can enter between the two guiding racks 4. At the same time, the auxiliary rack 02 enters the sliding groove 7. After the auxiliary rack 02 moves to the support rack 3, the pushing member 6 drives the guiding rack 4 to rotate back to its original position. Then the driving component 5 drives the support rack 3 and the guiding rack 4 to move in the opposite direction, thereby driving the girder body 01 to be assembled closer to the girder body 01 on the placement rack 1.

[0052] Refer to Figure 4 , a pair of guiding plates 41 are arranged at the end of the guiding rack 4 away from the support rack 3. The two guiding plates 41 are arranged at intervals up and down, and the gap between the two guiding plates 41 corresponds to the sliding groove 7 on the guiding rack 4. The ends of the two guiding plates 41 away from the support rack 3 are inclined in the direction away from each other up and down.

[0053] When the beam 01 to be assembled is pushed to the guiding frame 4 by the floating towing method, so that through the opened guiding frame 4 and the guiding plate 41, the auxiliary frame 02 is placed between the two guiding frames 4 and the guiding plate 41. Additionally, when horizontally driving the beam 01 to move, so that through the guiding frame 4 and the guiding plate 41, the auxiliary frame 02 is driven to move to cooperate with the support frame 3, realizing the positioning of the beam 01, eliminating the influence of factors such as the shaking of the beam 01 during assembly, and improving the assembly efficiency.

[0054] Refer to Figure 2 、 Figure 3 As shown in, the driving assembly 5 includes a power member 51 and a lead screw 52. The power member 51 is set as a motor. The lead screw 52 is rotatably arranged on the fixed frame 2. The lead screw 52 is arranged at the output end of the power member 51. The lead screw 52 is in threaded cooperation with the support frame 3. The power member 51 drives the lead screw 52 to rotate, and the lead screw 52 drives the support frame 3 to move, thereby adjusting the positions of the support frame 3 and the guiding frame 4.

[0055] Refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown in, correction wheels 8 are arranged on both guiding frames 4. The correction wheels 8 are arranged between the two guiding plates 41, that is, the correction wheels 8 are arranged on the side of the guiding frame 4 close to the other guiding frame 4. A support rod 42 is arranged on the guiding frame 4. The support rod 42 is slidably arranged on the guiding frame 4 in a direction perpendicular to the other guiding frame 4. The correction wheels 8 are rotatably arranged on the support rod 42. An elastic member 43 is arranged outside the support rod 42. The elastic member 43 is set as a spring. The spring is sleeved outside the support rod 42, and the elastic member 43 is arranged between the correction wheel 8 and the guiding frame 4. The elastic member 43 is connected to the support rod 42 and is used to drive the support rod 42 to move in a direction towards the other guiding frame 4.

[0056] After the auxiliary frame 02 enters between the two guiding plates 41, the correction wheels 8 on the two guiding frames 4 are simultaneously in contact with the auxiliary frame 02. At the same time, under the action of the elastic member 43, the auxiliary frame 02 is driven to move to correspond to the center of the two guiding frames 4 until the auxiliary frame 02 moves to cooperate with the chute 7.

[0057] Refer to Figure 3 、 Figure 6, after the auxiliary frame 02 moves to cooperate with the support frame 3, the auxiliary frame 02 is separated from the correction wheel 8. At this time, the pushing member 6 drives the guiding frame 4 to rotate in the reverse direction, so that the guiding frame 4 and the support frame 3 are on the same straight line. At the same time, the guiding frame 4 drives the correction wheel 8 to move to the side of the beam 01 to be assembled and abuts against the side of the beam 01. At this time, the floating towing device is separated from the beam 01. When the power member 51 drives the support frame 3 to move in the reverse direction, by abutting the correction wheel 8 against the side of the beam 01, the beam 01 can be driven to move synchronously with the support frame 3, and the beam 01 to be assembled is driven to move to the position of the beam 01 on the placing frame 1.

[0058] In addition, a support rod 42 is provided and connected to the correction wheel 8, and the support rod 42 is slidably matched with the guiding frame 4. After the correction wheel 8 abuts against the beam 01, the support rod 42 can support the correction wheel 8 to improve the stability when the correction wheel 8 cooperates with the beam 01.

[0059] Refer to Figure 2 , Figure 3 , a through groove 21 is formed in the fixed frame 2, and the through groove 21 is arranged on the side of the support frame 3 facing away from the other support frame 3. A connecting plate one 31 and a connecting plate three 33 are arranged on the support frame 3, and a connecting plate two 32 is arranged on the guiding frame 4. The connecting plate one 31, the connecting plate two 32, and the connecting plate three 33 are all arranged on the side of the support frame 3 close to the through groove 21, and all three pass through the through groove 21 and extend to the outside of the through groove 21, that is, the outside of the fixed frame 2. The pushing member 6 is installed on the connecting plate one 31, and the output end of the pushing member 6 is rotationally matched with the connecting plate two 32 on the guiding frame 4. The lead screw 52 penetrates through the connecting rod three and is threadedly matched with the connecting plate three 33, that is, the lead screw 52 is connected to the support frame 3 through the connecting plate three 33.

[0060] By providing the connecting plate one 31, the connecting plate two 32, and the connecting plate three 33, the pushing member 6, the power member 51, and the lead screw 52 are all installed on the side of the support frame 3 facing away from the sliding groove 7, reducing the phenomenon that they interfere with the sliding of the auxiliary frame 02 between the two support frames 3, so as to position and assemble the auxiliary frame 02.

[0061] Refer to Figure 1 , Figure 7 , the support device 9 includes: a mounting rod 91, a winding motor 92, a pulling rope 93, and a pulling ring 94. The mounting rod 91 is vertically installed on the placing frame 1, the winding motor 92 is arranged at the end of the mounting rod 91 facing away from the placing frame 1, the pulling ring 94 is arranged at the end of the guiding frame 4 facing away from the support frame 3, one end of the pulling rope 93 is connected to the output end of the winding motor 92, and the other end is inclined downward and connected to the pulling ring 94. The pulling rope 93 is in an inclined state. When the guiding frame 4 moves, the winding motor 92 will rotate correspondingly to wind or release the pulling rope 93, so as to provide support for the guiding frame 4 through the pulling rope 93 during the assembly process and enhance its stability.

[0062] Refer to Figure 8, a plurality of rollers 22 are provided on the side wall of the fixing frame 2, and the plurality of rollers 22 are arranged along the sliding direction of the support frame 3. The sides of the guide frame 4 and the support frame 3 are both engaged with the rollers 22, that is, the support frame 3 and the guide frame 4 are slidably assembled in the fixing frame 2 through the rollers 22. By assembling the rollers 22, the frictional force during the sliding of the support frame 3 is reduced, so as to adjust the position of the support frame 3.

[0063] The implementation principle of the present invention is as follows: during assembly, the guide frame 4 is moved to be separated from the fixing frame 2, and then the pushing member 6 drives the two guide frames 4 to rotate and open. At the same time, two inclined guide plates 41 are provided on the guide frame 4, so as to move the auxiliary frame 02 between the two guide frames 4 through the opened guide frame 4. Through the two guide plates 41, the auxiliary frame 02 is moved to correspond to the center of the guide frame 4, realizing the positioning and guiding of the beam body 01 until the beam body 01 is engaged with the support frame 3, eliminating the influence of the shaking of the beam body 01, and improving the assembly efficiency.

[0064] The present invention also discloses a steel truss beam assembly process, adopting the above steel truss beam assembly structure.

[0065] A steel truss beam assembly process includes the following steps:

[0066] S1, place the beam body 01 on the placement frame 1, and use a floating towing device to push the beam body 01 to be assembled to the placement frame 1, and at the same time make the two beam bodies 01 on the same horizontal plane;

[0067] S2, the power member 51 drives the support frame 3 and the guide frame 4 to move. After the guide frame 4 moves to be separated from the fixing frame 2, the pushing member 6 drives the two guide frames 4 to rotate and open synchronously;

[0068] S3, the floating towing device transfers the beam body 01 to be assembled between the guide frames 4, and the guide plates 41 and the correction wheels 8 guide the auxiliary frame 02 on the beam body 01 into the sliding grooves 7 on the guide frames 4;

[0069] S4, continue to move the beam body 01. After the auxiliary frame 02 moves to the support frame 3 and the correction wheels 8 are separated from the auxiliary frame 02, the pushing member 6 drives the guide frame 4 to rotate in the reverse direction, so that the guide frame 4 cooperates with the auxiliary frame 02. At the same time, the correction wheels 8 move to abut against the side surface of the beam body 01;

[0070] S5, the power member 51 drives the guide frame 4 to move, and drives the guide frame 4 to move into the fixing frame 2 again. At the same time, the guide frame 4 drives the beam body 01 to move synchronously through the correction wheels 8 until the beam body 01 to be assembled cooperates with the beam body 01 on the placement frame 1.

[0071] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A steel truss assembly structure, comprising a placement frame (1) for placing a beam body (01), characterized in that: Auxiliary frames (02) are arranged on both sides of the beam body (01), and two sets of guiding devices are arranged horizontally at intervals on the placement frame (1); the guiding device comprises: a fixed frame (2) installed on the placement frame (1), a support frame (3) and a guide frame (4) slidably matched with the fixed frame (2), a driving component (5) connected to the fixed frame (2), and a push piece (6) connected to the support frame (3); the support frame (3) is connected to the driving component (5) and the guide frame (4) respectively, and is rotationally matched with the guide frame (4), and the output end of the push piece (6) is rotationally connected to the guide frame (4); the end of the guide frame (4) away from the support frame (3) is arranged at intervals up and down. A pair of guide plates (41) are provided, and the ends of the two guide plates (41) facing away from the support frame (3) are tilted up and down in a direction away from each other; the driving assembly (5) drives the guide frame (4) to move to separate from the fixed frame (2), and the pushers (6) in the two sets of guide devices synchronously drive the guide frame (4) to rotate and open, and the auxiliary frame (02) moves to cooperate with the support frame (3) through the guide plates (41) and the guide frame (4), and then the pusher (6) drives the guide frame (4) to rotate to abut against the auxiliary frame (02), and the guide frame (4) and the support frame (3) move to drive the beam body (01) to move to abut against the beam body (01) on the placement frame (1).

2. The steel truss assembly structure according to claim 1, characterized in that: A correction wheel (8) is rotatably provided on both guide frames (4), the correction wheel (8) is provided between the two guide plates (41), an elastic member (43) is provided between the correction wheel (8) and the guide frame (4), and the elastic member (43) is used to drive the correction wheel (8) to move and cooperate with the auxiliary frame (02).

3. The steel truss assembly structure according to claim 2, characterized in that: After the auxiliary frame (02) moves to cooperate with the support frame (3), the correction wheel (8) separates from the auxiliary frame (02), the push piece (6) drives the guide frame (4) to rotate until it is in the same straight line as the support frame (3), and the guide frame (4) drives the correction wheel (8) to abut against the side of the beam body (01).

4. The steel truss assembly structure according to claim 3, characterized in that: A support rod (42) is slidably disposed on the guide frame (4), an elastic member (43) is sleeved on the outside of the support rod (42), and a correction wheel (8) is rotatably assembled on the support rod (42).

5. The steel truss assembly structure according to claim 1, characterized in that: A through slot (21) is provided on the fixed frame (2), a connecting plate 1 (31) is provided on the supporting frame (3), and a connecting plate 2 (32) is provided on the guide frame (4). The connecting plate 1 (31) and the connecting plate 2 (32) are both provided on a side of the supporting frame (3) away from the other supporting frame (3), and the connecting plate 1 (31) and the connecting plate 2 (32) extend to the outside of the fixed frame (2) through the through slot (21). The push piece (6) is mounted on the connecting plate 1 (31), and the output end of the push piece (6) is rotatably matched with the connecting plate 2 (32).

6. The steel truss assembly structure according to claim 4, characterized in that: The driving assembly (5) comprises a power member (51) and a lead screw (52); the power member (51) is arranged on a fixed frame (2); the lead screw (52) and the fixed frame (2) are rotationally matched; the lead screw (52) and the support frame (3) are threadedly matched; and the output end of the power member (51) is connected to the lead screw (52).

7. The steel truss assembly structure according to claim 6, characterized in that: The support frame (3) comprises a connecting plate three (33), the connecting plate three (33) extends to the outside of the through slot (21), and the lead screw (52) passes through the connecting plate three (33) and is threadedly engaged with the connecting plate three (33).

8. The steel truss assembly structure according to claim 1, characterized in that: A plurality of rollers (22) are rotatably mounted on the side wall of the fixed frame (2), and the plurality of rollers (22) are arranged along the sliding direction of the support frame (3). The support frame (3) and the guide frame (4) slide in the fixed frame (2) via the rollers (22).

9. The steel truss assembly structure according to claim 1, characterized in that: The placement frame (1) is provided with a mounting rod (91), a winding motor (92) is provided on the mounting rod (91), a pull rope (93) is wound around the output end of the winding motor (92), a pull ring (94) is provided at one end of the guide frame (4) away from the support frame (3), and an end of the pull rope (93) away from the winding motor (92) is tilted downward and connected to the pull ring (94) to support the guide frame (4).

10. A steel truss girder assembly process, using the steel truss girder assembly structure according to claim 6, characterized in that: The steps include: Placing the beam body (01) on the placement rack (1), and using a floating drag device to push the beam body (01) to be assembled to the placement rack (1), while making the two beam bodies (01) on the same horizontal plane; After the power member (51) drives the guide frame (4) to move to be separated from the fixed frame (2), the push member (6) drives the two guide frames (4) to rotate and open synchronously; The floating and dragging equipment transfers the beam body (01) to be assembled between the guide frames (4), and the guide plate (41) and the correction wheel (8) guide the auxiliary frame (02) to enter the slide groove (7) on the guide frame (4); The beam body (01) continues to be moved, and after the auxiliary frame (02) moves to the support frame (3), and the correction wheel (8) is separated from the auxiliary frame (02), the push piece (6) drives the guide frame (4) to rotate in the opposite direction, so that the guide frame (4) cooperates with the auxiliary frame (02), and at the same time, the correction wheel (8) moves to abut against the side surface of the beam body (01); The power member (51) drives the guide frame (4) to move, and then drives the guide frame (4) to move into the fixed frame (2). At the same time, the guide frame (4) drives the beam body (01) to move synchronously through the correction wheel (8) until the beam body (01) to be assembled is matched with the beam body (01) on the placement frame (1).

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