Aqueduct bailey beam construction device and method convenient to install

Abstract

The invention belongs to the technical field of building construction, and discloses an aqueduct bailey beam construction device and method convenient to install, the aqueduct bailey beam construction device comprises a supporting column, a bailey beam body and an aqueduct body, the supporting column serves as a bottom support to be connected with the ground, and the aqueduct body is installed at the top of the supporting column through the bailey beam body; the construction method comprises the following steps that S1, the row number, the layer number and the supporting column layout of the bailey beam bodies are determined according to loads and geological data; concrete is poured to install the supporting columns, and column foot connecting pieces are pre-buried; through cooperation of structures such as the vertical rod, the pushing piece and the transverse groove, locking of the pushing plate and the reinforcing chord member is relieved, through the elastic force of the spring to the pushing rod, the pushing rod at one end pulls the male connector to retract into the reinforcing chord member through the rod body, and the pushing rod at the other end pulls the female connector to be perpendicular to the reinforcing chord member; and therefore, the single bailey beam body can be quickly pulled and separated, the complexity of disassembling the bailey beam body is greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically a construction device and method for aqueduct Bailey beams that is easy to install. Background Technology

[0002] The design and construction of aqueducts using Bailey bridges refers to the specialized technology for constructing water conveyance aqueducts in hydraulic engineering projects using standardized prefabricated steel trusses (Bailey bridges) as temporary support structures. Its core lies in the rapid erection of a load-bearing platform using modular Bailey panels to bear all loads during the concrete pouring stage (including self-weight, wet concrete weight, construction loads, etc.). The platform is dismantled after the aqueduct structure has formed and achieved self-supporting capacity. Currently, during dismantling, the bolts or clips connecting adjacent Bailey bridges are manually removed. Then, using cranes and ropes, the Bailey bridges are pulled out one by one from the middle of the aqueduct and supports. During this pulling process, even if adjacent Bailey bridges are unlocked, their male and female ends remain connected. When pulling a single Bailey bridge outwards, this connection also causes adjacent Bailey bridges to move, increasing the complexity of dismantling and reducing overall work efficiency. Therefore, improvements are needed. Meanwhile, Bailey beams are usually rigidly connected during assembly. If the connection is not accurate, frequent adjustments are troublesome and can easily cause wear and tear, leading to component damage. Summary of the Invention

[0003] To address the problem mentioned in the background art where Bailey beams are pulled outwards one by one from the middle of the aqueduct and support using a crane and ropes, even if two adjacent Bailey beams have been unlocked, their male and female ends will still be interlocked. When a single Bailey beam is pulled outwards, the interlocking of the male and female ends will also cause adjacent Bailey beams to move, increasing the complexity of dismantling. This invention provides an aqueduct Bailey beam construction device and method that is easy to install.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an easy-to-install aqueduct Bailey beam construction device, comprising a support column, a Bailey beam body and an aqueduct body, wherein the support column serves as a bottom support and is connected to the ground, and the aqueduct body is installed on the top of the support column through the Bailey beam body. The Bailey beam body includes multiple sets of reinforcing chords and trusses, which are spliced ​​together to form part of the frame of the Bailey beam body. Its characteristic is that it further includes: Abutment, which is installed inside the reinforcing chord located below; used to provide auxiliary support for the support column; A pusher element is located at the upper end of the reinforcing chord located above; The reinforcing chord is equipped with a male connector and a female connector at both ends. The male connector is slidably connected to the inside of one end of the reinforcing chord, and a vertical rod is fixed to one end of the male connector. The female connector is hinged to the other end of the reinforcing chord away from the male connector. The abutment includes an L-shaped rod, with a hollow roller shaft fixedly connected to the inside of the bent end of the L-shaped rod. The hollow roller shaft is rotatably connected to a reinforcing chord. An abutment rod is slidably connected inside the L-shaped rod. The hollow roller shaft communicates with the inside of the L-shaped rod through an oil groove.

[0005] Preferably, the reinforcing chord has an oil cavity inside; The vertical rod includes a rod body, which is disposed at the end of the reinforcing chord away from the female connector. The rod body is fixedly connected to the male connector and is used to connect the upper and lower male connectors.

[0006] Preferably, one end of the rod is slidably engaged with the reinforcing chord, and the bottom of the rod is fixedly connected to a push block that is slidably connected inside the oil cavity. The inside of the oil cavity is used to hold hydraulic oil, and an oil pipe is fixedly connected inside the oil cavity. The lower end of the rod is Z-shaped, and one end abuts against the outer wall of the L-shaped rod.

[0007] Preferably, the rod body is equipped with blocks on both sides near the male connector end, and the female connector sidewall is equipped with baffles at both ends. The baffle plate is provided with a horizontal groove; Both the stop block and the baffle plate have corresponding bolt holes.

[0008] Preferably, the hollow roller shaft and the outer wall of the rotating end of the reinforcing chord are equipped with spring plates for elastic reset, and the hollow roller shaft is connected to the inner cavity of the oil chamber through an oil pipe.

[0009] Preferably, the pushing member includes a push plate, which is movably engaged with the middle of the reinforcing chord located above. The two sides of the bottom end of the push plate are respectively connected to push rods that are slidably connected to the inside of the reinforcing chord. The ends of the two push rods away from the push plate are elastically connected to the reinforcing chord by springs.

[0010] Preferably, the adjacent ends of the two push rods are provided with an angle; One end of the push rod, away from the push plate, is C-shaped and slidably connected to the transverse groove; the other end of the push rod, away from the push plate, is fixedly connected to the rod body.

[0011] Preferably, the push plate is connected to the reinforcing chord by bolts, and the push plate will be embedded in the reinforcing chord after being pressed down; the L-shaped rod is initially retracted inside the reinforcing chord, and the bottom surface of the L-shaped rod is at the same level as the bottom surface of the reinforcing chord.

[0012] Preferably, one end of the oil pipe is rotatably connected to the hollow roller shaft, and the end of the oil pipe away from the hollow roller shaft is fixed to the reinforcing chord.

[0013] A method for constructing a Bailey bridge aqueduct that is easy to install is as follows: S1. Based on load and geological data, determine the number of rows and layers of Bailey beams and the layout of support columns; pour concrete, install support columns, and pre-embed column base connectors; S2. Hoist steel pipe columns and lattice columns, add inter-column scissor bracing, and install transverse I-beam distribution beams on the top of the support columns; S3. The installation of the Bailey beam body is completed through ground assembly, hoisting positioning and reinforcement; the formwork is installed and the steel bars are tied; the concrete is poured symmetrically and evenly to complete the installation of the aqueduct body frame; S4. After the concrete strength reaches the standard, unload in stages according to the principle of "last installation, first removal"; first remove the formwork and distribution beams, and then unload the Bailey beam body in sections.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By setting up a combination of vertical rods, pushers and horizontal grooves, the present invention releases the locking between the push plate and the reinforcing chord. Through the elastic force of the spring on the push rod, one end of the push rod pulls the male connector to retract into the interior of the reinforcing chord through the rod body, and the other end of the push rod pulls the female connector to be perpendicular to the reinforcing chord. This makes the male and female connectors between two adjacent Bailey beam bodies no longer plugged in, thereby allowing a single Bailey beam body to be quickly pulled away, greatly reducing the complexity of disassembling the Bailey beam body and improving work efficiency.

[0015] (2) By setting up abutment and vertical rod and other structures, the push rod on one side will drive the push block to move synchronously through the rod body, release the contact with the L-shaped rod, and make the push block push the hydraulic oil inside the oil cavity. When the rod body does not contact the L-shaped rod, the L-shaped rod will flip downward with the hollow roller shaft as the axis through the spring plate. The push block will squeeze the hydraulic oil inside the oil cavity and enter the interior of the L-shaped rod through the oil pipe, hollow roller shaft and oil groove to press the abutment. Then the end of the abutment away from the L-shaped rod presses against the side wall of the support column and completes the locking connection of multiple Bailey beam bodies through existing technologies such as bolts or pins, thereby greatly improving the overall placement stability of the Bailey beam body. (3) After the male connector is inserted into the female connector and locked by bolt connection, the two blocks on the rod body will be inserted into the middle area of ​​the baffle on the female connector. The baffle will limit the block while the bolt passes through the bolt hole on the rod body and locks with the female connector. This greatly improves the horizontal stability of the two female connectors and the male connector by adding auxiliary limiting and positioning to the two on the basis of the existing simple snap-fit ​​connection using only the male connector and the female connector, without consuming more structure and usage costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of the support column, Bailey beam body, and aqueduct body of the present invention; Figure 3 This is a schematic diagram of the structure of the vertical rod and the abutment of the present invention; Figure 4 for Figure 3 A magnified view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the pusher block and oil cavity of the present invention; Figure 6 This is a schematic diagram of the structure of the oil pipe and hollow roller shaft of the present invention; Figure 7 for Figure 6 A magnified schematic diagram of the structure at point B in the middle; Figure 8 This is a detailed structural diagram of the pusher component of the present invention; Figure 9 This is a schematic diagram of the structure of the rod and the abutment of the present invention; Figure 10 This is a schematic diagram of the female connector and transverse groove of the present invention; Figure 11 for Figure 10 A magnified schematic diagram of the structure at point C in the middle; Figure 12 This is a schematic diagram of the male connector and push plate of the present invention; Figure 13 This is a schematic diagram of the structure of the transverse groove and the aqueduct body of the present invention.

[0017] In the diagram: 100, Support column; 200, Bailey beam body; 210, Reinforcing chord; 211, Oil cavity; 220, Truss; 230, Male connector; 240, Female connector; 241, Horizontal groove; 250, Vertical rod; 251, Rod body; 252, Push block; 300, Aqueduct body; 400, Abutment; 410, L-shaped rod; 420, Oil groove; 430, Abutment rod; 440, Hollow roller; 450, Oil pipe; 460, Spring plate; 500, Pushing component; 510, Push plate; 520, Push rod; 530, Spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 13 As shown, the present invention provides a construction method for an aqueduct Bailey bridge that is easy to install, including a support column 100, a Bailey bridge body 200, and an aqueduct body 300. The support column 100 serves as a bottom support and is connected to the ground. The aqueduct body 300 is installed on the top of the support column 100 through the Bailey bridge body 200. The construction method is as follows: S1. Based on load and geological data, determine the number of rows and layers of the Bailey beam body 200 and the layout of the support columns; pour concrete to install the support columns 100 and pre-embed column foot connectors; S2. Hoist the steel pipe columns and lattice columns, add inter-column scissor bracing, and install a transverse I-beam distribution beam on the top of the 100mm support column. S3. The installation of the Bailey beam body 200 is completed through ground assembly, hoisting positioning and reinforcement; the formwork is installed and the steel bars are tied; the concrete is poured symmetrically and evenly to complete the installation of the aqueduct body 300 frame. S4. After the concrete strength reaches the standard, unload in stages according to the principle of "last installation, first removal"; first remove the formwork and distribution beams, and then unload the Bailey beam body in sections of 200mm.

[0020] A construction device for an aqueduct Bailey bridge that is easy to install includes a Bailey bridge body 200 comprising multiple sets of reinforcing chords 210 and trusses 220, which are spliced ​​together to form part of the frame of the Bailey bridge body 200. The device also includes: Abutment 400 is installed inside the reinforcing chord 210 located below; it is used to provide auxiliary support for the support column 100. A pusher 500 is disposed at the upper end of the reinforcing chord 210 located above; Among them, the two ends of the reinforcing chord 210 are respectively equipped with a male connector 230 and a female connector 240. The male connector 230 is slidably connected to the inside of one end of the reinforcing chord 210, and a vertical rod 250 is fixedly connected to one end of the male connector 230. The female connector 240 is hinged to the other end of the reinforcing chord 210 away from the male connector 230. The abutment 400 includes an L-shaped rod 410, a hollow roller shaft 440 is fixedly connected to the inside of the bent end of the L-shaped rod 410, the hollow roller shaft 440 is rotatably connected to the reinforcing chord 210, an abutment rod 430 is slidably connected inside the L-shaped rod 410, and the hollow roller shaft 440 is connected to the inside of the L-shaped rod 410 through an oil groove 420.

[0021] like Figure 4 and Figure 5 As shown, an oil cavity 211 is provided inside the reinforcing chord 210; The vertical rod 250 includes a rod body 251, which is located at the end of the reinforcing chord 210 away from the female connector 240. The rod body 251 is fixedly connected to the male connector 230 and is used to connect the upper and lower male connectors 230.

[0022] like Figure 4 , Figure 5 and Figure 9 As shown, one end of the rod 251 is slidably engaged with the reinforcing chord 210, and the bottom of the rod 251 is fixedly connected to a push block 252 that is slidably connected inside the oil cavity 211. The inside of the oil cavity 211 is used to place hydraulic oil, and the inside of the oil cavity 211 is fixedly connected to an oil pipe 450. The lower end of the rod 251 is Z-shaped, and one end abuts against the outer wall of the L-shaped rod 410.

[0023] It should be noted that both the upper and lower male connectors 230 are connected via rod 251. See the attached document for details. Figure 9 This ensures the synchronicity of the driving of the two male connectors 230, and the lower part of the Z-shaped rod 251 can be controlled to abut against the L-shaped rod 410 when moving. It is easy to understand that when the rod 251 moves towards the male connector 230, it will squeeze the hydraulic oil inside the oil cavity 211 through the push block 252, so that the hydraulic oil enters the oil pipe 450. The hydraulic oil is placed in the space embedded inside the reinforcing chord 210, which will not increase the additional use cost. At the same time, one end of the rod 251 is in close contact with the top surface of the reinforcing chord 210, and the length of the rod 251 on the top surface of the oil cavity 211 is much greater than the length of the oil cavity 211. Therefore, the rod 251 above the oil cavity 211 will seal the oil cavity 211, ensuring that the hydraulic oil in the oil cavity 211 will not flow out.

[0024] like Figure 13 As shown, the rod body 251 has blocks installed on both sides near the male connector 230, and the female connector 240 has baffles installed on both ends of its sidewall. A transverse groove 241 is provided on the baffle plate; Both the stop block and the baffle plate have corresponding bolt holes.

[0025] It is not difficult to understand that, combined Figure 13 When the male connector 230 is inserted into the female connector 240 and fixed by bolts, the two stops on the rod body 251 will be inserted into the middle of the baffle on the female connector 240. The baffle will limit the stop blocks, and then the bolts will pass through the bolt holes on the rod body 251 to lock with the female connector 240. Based on the existing simple snap-fit ​​connection using only the male connector 230 and the female connector 240, additional auxiliary limiting and positioning is provided for the two, which improves the horizontal stability of the snap-fit ​​connection between the two female connectors 240 and the male connector 230 without consuming more structural and usage costs.

[0026] like Figure 6 and Figure 7As shown, a spring plate 460 for elastic reset is installed on the outer wall of the rotating end of the hollow roller shaft 440 and the reinforcing chord 210. The hollow roller shaft 440 is connected to the inner cavity of the oil chamber 211 through the oil pipe 450.

[0027] It is easy to understand that when the pusher 252 squeezes the hydraulic oil inside the oil chamber 211, the hydraulic oil will enter the interior of the hollow roller 440 through the oil pipe 450, and then enter the interior of the oil groove 420 through the hollow roller 440. As the hydraulic oil is continuously injected, the hydraulic oil inside the oil groove 420 will fill the gap between the pusher 430 and the oil groove 420, and use the oil pressure to push the pusher 430 to move outward from the interior of the L-shaped rod 410, so that the end of the pusher 430 away from the L-shaped rod 410 is pressed against the side wall of the support column 100 by the pressure of the hydraulic oil. It is important to note that when assembling the Bailey beam body 200 on top of the support column 100, since the abutment 400 is installed on the end of the reinforcing chord 210 near the male connector 230, the Bailey beam body 200 should be arranged such that the end near the abutment 400 is placed on the side closest to the support column 100. The specific position can be selected using a measuring instrument of the prior art. Alternatively, the Bailey beam body 200 can be placed closer to the support column 100, while normal Bailey beams can be placed in the remaining positions. The design of the additional abutment 400, specifically the L-shaped rod 410 and the abutment 430, allows the reinforcing chord 210 to be additionally supported outwards via the abutment 400, thereby improving the overall stability of the Bailey beam body 200 assembly, while the existing technology allows the Bailey beam body 200 to be directly fixed to the top surface of the support column 100.

[0028] like Figures 8 to 10 and Figure 12 As shown, the pusher 500 includes a push plate 510, which is movably engaged with the middle of the reinforcing chord 210 located above. The two sides of the bottom end of the push plate 510 are respectively connected to push rods 520 that are slidably connected to the inside of the reinforcing chord 210. The ends of the two push rods 520 away from the push plate 510 are elastically connected to the reinforcing chord 210 through springs 530.

[0029] like Figures 8 to 10 As shown, the adjacent ends of the two push rods 520 are both provided with bevels; One end of the push rod 520, away from the push plate 510, is slidably connected to the transverse groove 241 in a C-shape; the other end of the push rod 520, away from the push plate 510, is fixedly connected to the rod body 251.

[0030] It is easy to understand that when the downward-pressing push plate 510 causes its bottom end to press against the two push rods 520 at the angled ends, causing them to move in opposite directions. At this time, the spring 530 is in a compressed state, and one push rod 520 will gradually contact the female connector 240 through the sliding connection with the transverse groove 241 and flip it over, so that the female connector 240 and the reinforcing chord 210 are in a horizontal state. Figure 10 The female connector 240 is initially perpendicular to the reinforcing chord 210. Figure 12 and Figure 13 After the female connector 240 is flipped over, it is in a horizontal position with the reinforcing chord 210. When the female connector 240 is reset later, it can also be flipped over with the assistance of the operator.

[0031] The other push rod 520 will drive the male connector 230 to move outward from the inside of the reinforcing chord 210, so that one end of the male connector 230 is located on the outside of the reinforcing chord 210; When the female connector 240 is in a horizontal position against the reinforcing chord 210, and one end of the male connector 230 is moved outward, multiple Bailey beam bodies 200 can be spliced ​​and assembled through the male connector 230, the female connector 240, and bolts. Simultaneously, when multiple Bailey beam bodies 200 need to be dismantled, the bolts on the top of the push plate 510 and the reinforcing chord 210 are removed. The two push rods 520, under the elastic force of their respective springs 530, will move towards each other, causing one end of the female connector 240 to be pulled back to a perpendicular position with the reinforcing chord 210, and the other end of the male connector 230 to be pulled into the reinforcing chord. Inside the rod 210, it is important to note that during the dismantling of the Bailey beam body 200, there are personnel assisting in the operation. At this time, two adjacent Bailey beam bodies 200 are not connected through the female connector 240 and the male connector 230. This effectively prevents the situation in the prior art where, even after the bolts used to lock the female connector 240 and the male connector 230 are removed, the female connector 240 will still be connected to the male connector 230. This would cause the adjacent Bailey beam bodies 200 to shake significantly when a single Bailey beam body 200 is pulled out, thus reducing the complexity and tediousness of dismantling.

[0032] like Figure 8 , Figure 9 and Figure 12 As shown, the push plate 510 is connected to the reinforcing chord 210 by bolts. After the push plate 510 is pressed down, it will be embedded in the reinforcing chord 210. The L-shaped rod 410 is initially retracted inside the reinforcing chord 210, and the bottom surface of the L-shaped rod 410 is at the same level as the bottom surface of the reinforcing chord 210.

[0033] It should be noted that after the push plate 510 is pressed down and fixed, it will be on the same horizontal plane as the upper reinforcing chord 210, that is, the push plate 510 is embedded inside the upper reinforcing chord 210, and the lower L-shaped rod 410 will also be completely retracted inside the reinforcing chord 210, so it will not affect the overall placement and use of the Bailey beam body 200.

[0034] like Figure 6 and Figure 7 As shown, one end of the oil pipe 450 is rotatably connected to the hollow roller shaft 440, and the other end of the oil pipe 450 away from the hollow roller shaft 440 is fixed to the reinforcing chord 210.

[0035] Working principle and usage process of this invention: Installation of Bailey beam body 200: First, using existing technologies such as cranes, the Bailey beam body 200 is placed on the support column 100. After placement, the push plate 510 is pressed down and bolts are used to lock the push plate 510 to the upper reinforcing chord 210. Then, steel plates are placed at both ends of the top surface of the reinforcing chord 210 to ensure complete support of the bottom of the aqueduct frame while leaving space above the push plate 510. When the push plate 510 is pressed down, the angled ends of the push rods 520 press against the two push rods 520 and move them in opposite directions. This causes the female connector 240 to rotate and become horizontal with the reinforcing chord 210, and the male connector 230 to move outward from inside the reinforcing chord 210. This achieves the insertion between the female connector 240 and the male connector. If they do not connect properly, they can automatically reset. Then, the Bailey beam body 200 can be adjusted, avoiding wear caused by rigid connection.

[0036] Secondly, the push rod 520 on one side will drive the push block 252 to move synchronously through the rod body 251, so that the rod body 251 gradually releases its resistance to the L-shaped rod 410. The push block 252 simultaneously pushes the hydraulic oil inside the oil chamber 211. When the rod body 251 gradually stops contacting the L-shaped rod 410, the L-shaped rod 410 will flip downward with the hollow roller shaft 440 as the axis through the spring plate 460. At the same time, the push block 252 will squeeze the hydraulic oil inside the oil chamber 211 through the oil pipe 450, the hollow roller shaft 440 and the oil groove 420 into the interior of the L-shaped rod 410, and continuously press the abutment rod 430, so that the end of the abutment rod 430 away from the L-shaped rod 410 presses against the side wall of the support column 100. The locking connection of multiple Bailey beam bodies 200 is completed by existing technologies such as bolts or pins. This avoids the problems of inaccurate rigid connection and easy wear of the joints between the Bailey beam bodies 200mm apart, while also enabling quick multi-locking and improving installation stability.

[0037] Disassembly of the Bailey beam body 200: First, the bolt connection between the push plate 510 and the reinforcing chord 210 is removed. The spring 530 applies elastic force to the push rod 520. One end of the push rod 520 pulls the female connector 240 through the transverse groove 241 to be perpendicular to the reinforcing chord 210 again. The other end of the push rod 520 pulls the male connector 230 through the vertical rod 250 to move it back into the reinforcing chord 210. At the same time, the lower end of the vertical rod 250 gradually presses against the L-shaped rod 410 as it moves, causing the L-shaped rod 410 to rotate clockwise around the hollow roller shaft 440. The push block 252 moves away from the male connector 230 inside the oil chamber 211, so that the hydraulic oil pressing the push rod 430 no longer has the pressure. When the push rod 430 is about to contact the reinforcing chord 210 after rotating clockwise, the push rod 430 can be manually and smoothly retracted into the L-shaped rod 410. This process can be done with the help of external tools. Secondly, the male connector 230 retracts into the interior of the reinforcing chord 210, and the female connector 240 is perpendicular to the reinforcing chord 210, so that there is no longer a plugging state between the male connector 230 and the female connector 240 between the two Bailey beam bodies 200. At this time, the rope on the crane can be directly tied to the middle position of the Bailey beam body 200 and pulled outward, which greatly reduces the complexity of disassembling the Bailey beam body 200.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easy-to-install aqueduct Bailey beam construction device, comprising a support column (100), a Bailey beam body (200) and an aqueduct body (300), wherein the support column (100) is connected to the ground as a bottom support, and the aqueduct body (300) is installed on the top of the support column (100) through the Bailey beam body (200). The Bailey beam body (200) includes multiple sets of reinforcing chords (210) and trusses (220), which are spliced ​​together to form part of the frame of the Bailey beam body (200), characterized in that: Also includes: Abutment (400) is installed inside the reinforcing chord (210) located below; Used to provide auxiliary support for the support column (100); A pusher (500) is disposed at the upper end of the reinforcing chord (210) located above; Wherein, the two ends of the reinforcing chord (210) are respectively equipped with a male connector (230) and a female connector (240). The male connector (230) is slidably connected to the inside of one end of the reinforcing chord (210), and a vertical rod (250) is fixedly connected to one end of the male connector (230). The female connector (240) is hinged to the other end of the reinforcing chord (210) away from the male connector (230). The abutment (400) includes an L-shaped rod (410), a hollow roller shaft (440) is fixedly connected to the inside of the bent end of the L-shaped rod (410), the hollow roller shaft (440) is rotatably connected to the reinforcing chord (210), and an abutment rod (430) is slidably connected inside the L-shaped rod (410). The hollow roller shaft (440) is connected to the inside of the L-shaped rod (410) through an oil groove (420).

2. The easy-to-install aqueduct Bailey beam construction device according to claim 1, characterized in that: The reinforcing chord (210) has an oil cavity (211) inside; The vertical rod (250) includes a rod body (251), which is located at the end of the reinforcing chord (210) away from the female connector (240). The rod body (251) is fixedly connected to the male connector (230) and is used to connect the upper and lower male connectors (230).

3. The easy-to-install aqueduct Bailey beam construction device according to claim 2, characterized in that: One end of the rod (251) is slidably engaged with the reinforcing chord (210), and the bottom of the rod (251) is fixedly connected to a push block (252) that is slidably connected inside the oil cavity (211). The inside of the oil cavity (211) is used to place hydraulic oil, and the inside of the oil cavity (211) is fixedly connected to an oil pipe (450). The lower end of the rod (251) is Z-shaped, and one end abuts against the outer wall of the L-shaped rod (410).

4. The easy-to-install aqueduct Bailey beam construction device according to claim 3, characterized in that: The rod (251) is equipped with blocks on both sides near the male connector (230), and the female connector (240) is equipped with baffles at both ends of its sidewall. The baffle is provided with a transverse groove (241); Both the stop block and the baffle plate have corresponding bolt holes.

5. The easy-to-install aqueduct Bailey beam construction device according to claim 1, characterized in that: The hollow roller shaft (440) and the outer wall of the rotating end of the reinforcing chord (210) are equipped with spring plates (460) for elastic reset. The hollow roller shaft (440) is connected to the inner cavity of the oil chamber (211) through the oil pipe (450).

6. The easy-to-install aqueduct Bailey beam construction device according to claim 1, characterized in that: The pusher (500) includes a push plate (510), which is movably engaged in the middle of the reinforcing chord (210) located above. The two sides of the bottom end of the push plate (510) are respectively connected to push rods (520) that are slidably connected to the inside of the reinforcing chord (210). The ends of the two push rods (520) away from the push plate (510) are elastically connected to the reinforcing chord (210) through springs (530).

7. The easy-to-install aqueduct Bailey beam construction device according to claim 6, characterized in that: The adjacent ends of the two push rods (520) are provided with bevels; One end of the push rod (520) away from the push plate (510) is slidably connected to the transverse groove (241) in a C-shape; the other end of the push rod (520) away from the push plate (510) is fixedly connected to the rod body (251).

8. The easy-to-install aqueduct Bailey beam construction device according to claim 7, characterized in that: The push plate (510) is connected to the reinforcing chord (210) by bolts. After the push plate (510) is pressed down, it will be embedded in the reinforcing chord (210). The L-shaped rod (410) is initially retracted inside the reinforcing chord (210), and the bottom surface of the L-shaped rod (410) is at the same level as the bottom surface of the reinforcing chord (210).

9. The easy-to-install aqueduct Bailey beam construction device according to claim 3, characterized in that: One end of the oil pipe (450) is rotatably connected to the hollow roller shaft (440), and the end of the oil pipe (450) away from the hollow roller shaft (440) is fixed to the reinforcing chord (210).

10. A method for constructing an easily installed aqueduct Bailey bridge, applied to the easily installed aqueduct Bailey bridge construction device according to any one of claims 1-9, characterized in that: The construction method is as follows: S1. Based on the load and geological data, determine the number of rows, layers and support column layout of the Bailey beam body (200); pour concrete to install the support columns (100) and pre-embed column foot connectors; S2. Hoist the steel pipe columns and lattice columns, add inter-column scissor bracing, and install transverse I-beam distribution beams on the top of the support column (100); S3. The installation of the Bailey beam body (200) is completed by ground assembly, hoisting positioning and reinforcement; the formwork is installed and the steel bars are tied; the concrete is poured symmetrically and evenly to complete the installation of the aqueduct body (300) frame; S4. After the concrete strength reaches the standard, unload in stages according to the principle of "last installation, first removal"; first remove the formwork and distribution beams, and then unload the Bailey beam body in sections (200).

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