Beam column support auxiliary mounting device for bridge construction and using method thereof

Abstract

The invention discloses a beam column support auxiliary mounting device for bridge construction and a using method thereof, and the beam column support auxiliary mounting device comprises a bottom foundation preset on the top surface of a bridge pier body, a horizontal adjusting mechanism arranged on the bottom foundation and used for adjusting the mounting position of a support cross beam, and a hoisting mechanism arranged on the horizontal adjusting mechanism and used for hoisting the support cross beam, the horizontal adjusting mechanism comprises a longitudinal adjusting assembly used for adjusting the longitudinal position of the support cross beam on the horizontal plane and a transverse adjusting assembly arranged on the longitudinal adjusting assembly and used for adjusting the transverse position of the support cross beam on the horizontal plane, and the hoisting mechanism is arranged on the transverse adjusting assembly. Through the innovative technology of ground integral splicing and synchronous lifting, three breakthroughs of construction efficiency, safety performance and space adaptability are achieved; compared with a traditional fragmentation hoisting technology adopted by the support, the method can be implemented in the minimum working face between beam spans, and a recyclable standardized solution is provided for intelligent construction.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction technology, specifically relating to an auxiliary installation device for beam-column supports used in bridge construction and its usage method. Background Technology

[0002] Currently, global bridge construction is characterized by large spans, heavy loads, and a fast pace. According to statistics from the International Association for Bridge and Structural Engineering (IABSE), over 60% of cast-in-place beam projects in the past decade still utilize traditional segmented hoisting scaffolding technology. Traditional methods suffer from efficiency limitations due to the high turnover rate of hoisting equipment; for example, in the construction of the Akashi Kaikyo Bridge in Japan, hoisting time accounted for as much as 45%. Furthermore, accidents occurring in confined spaces account for 32% of bridge construction accidents (data from the US NTSB 2023 report). With the surge in projects involving complex terrain such as urban elevated highways and bridges spanning canyons, the adaptability limitations of traditional methods are becoming increasingly apparent, particularly in the field of cast-in-place beam scaffolding.

[0003] Internationally, breakthroughs have been achieved through modular construction (such as the UK's HS2 high-speed rail project) and hydraulic jacking technology (the construction of the piers and towers of the Hong Kong-Zhuhai-Macau Bridge), but technological gaps still exist in the field of cast-in-place beam supports. Traditional methods are difficult to meet the minimum working area requirements for bridges in mountainous areas and also suffer from problems such as long construction periods and high safety risks.

[0004] Therefore, this invention proposes an overall lifting technology that draws on the engineering thinking of assembling spacecraft into segments and launching them as a whole. Through ground modular pre-assembly and synchronous lifting system, the construction cycle can be shortened by more than 50%, the safety risks of segmented hoisting can be greatly reduced, and the construction requirements can be met by only requiring an assembly site between beam spans. Summary of the Invention

[0005] In view of this, the beam-column support auxiliary installation device and its usage method for bridge construction provided by this invention achieve a triple breakthrough in construction efficiency, safety performance, and spatial adaptability through an innovative process of overall ground assembly and synchronous lifting. Compared with the traditional segmented hoisting process for supports, this invention shortens the construction cycle of a single span by more than 50%, transfers more than 80% of high-altitude operations to the ground, significantly reduces the accident rate, and can be implemented within the smallest working area between beam spans, providing a reusable standardized solution for intelligent construction.

[0006] The present invention provides an auxiliary installation device for beam-column supports for bridge construction, comprising a bottom foundation pre-installed on the top surface of the bridge pier, a horizontal adjustment mechanism installed on the bottom foundation for adjusting the installation position of the support beam, and a lifting mechanism installed on the horizontal adjustment mechanism for lifting the support beam. The horizontal adjustment mechanism includes a longitudinal adjustment component for adjusting the longitudinal position of the support beam on the horizontal plane and a transverse adjustment component installed on the longitudinal adjustment component for adjusting the transverse position of the support beam on the horizontal plane. The lifting mechanism is installed on the transverse adjustment component.

[0007] Furthermore, the bottom foundation includes pad stones symmetrically arranged on both sides of the longitudinal centerline on the top surface of the bridge pier, a lower longitudinal beam arranged on the top surface of the pad stones, and a spreader beam located at the middle of the top surface of the lower longitudinal beam. A connecting component is provided between the spreader beam and the top of the bridge pier. One end of the connecting component is pre-embedded in a predetermined position in the top of the bridge pier, and the other end passes through the spreader beam and is connected and fixed to form a tie structure, thereby connecting and fixing the spreader beam and the lower longitudinal beam.

[0008] Furthermore, it also includes load-bearing columns installed on the top surfaces of the two ends of the lower longitudinal beam and an upper longitudinal beam installed on the load-bearing columns, wherein diagonal bracing rods are provided between the beam ends of the upper longitudinal beam and the lower ends of the load-bearing columns.

[0009] Furthermore, an anti-overturning bracket is provided on the outer side of the lower longitudinal beam, and an anti-overturning support leg is provided between the bottom of the anti-overturning bracket and the top surface of the bridge pier. The anti-overturning support leg and the load-bearing column are located on the same horizontal cross-section.

[0010] Furthermore, there are two lower longitudinal beams, and a lower horizontal connector for connecting the two lower longitudinal beams is installed between their inner sides.

[0011] Furthermore, there are two upper longitudinal beams, and an upper horizontal connector for connecting the two upper longitudinal beams is installed between their inner sides.

[0012] Furthermore, the longitudinal adjustment component includes a load-bearing crossbeam with a rectangular frame structure and a first driving member. The load-bearing crossbeam is slidably connected to the top surface of the upper longitudinal beam with a single degree of freedom, and the first driving member is used to provide sliding power for the load-bearing crossbeam.

[0013] Furthermore, the lateral adjustment assembly includes a winch that is slidably connected to the top surface of the load-bearing beam with a single degree of freedom, and a second drive component for providing sliding power to the winch.

[0014] Furthermore, the lifting mechanism includes a lifting system mounted on the winch, the lifting system including a hook that can be raised and lowered by the winch and a wire rope mounted on the hook for fixing the support beam.

[0015] A method for using an auxiliary installation device for beam-column supports in bridge construction is also provided, applicable to the aforementioned auxiliary installation device for beam-column supports in bridge construction, comprising the following steps:

[0016] S1. At the pre-installation position of the beam and column support, the top surface of the adjacent bridge pier is used as the working surface for lifting the support beam, and an auxiliary installation device for the beam and column support is erected on the working surface.

[0017] S2. The support beam is fixed to the lifting mechanism's lifting system using a bottom-mounted connection method, and the winch is used to lift the support beam to a position 30cm above the design elevation and then suspend it.

[0018] S3. Install and fix the support columns around the bridge piers according to their pre-installed positions.

[0019] S4. Adjust the horizontal installation position of the support beam through the horizontal adjustment mechanism. After the adjustment is in place, start the winch to slowly lower the support beam onto the support column and complete the subsequent installation and fixing of the beam-column support.

[0020] The beneficial effects of this invention are as follows: The auxiliary installation device for beam-column supports in bridge construction and its method of use utilize the top surface of the bridge pier as the working surface for lifting operations. The overall lifting and lowering of the support is achieved through a wire rope wound on a drum using a winch system. The longitudinal and transverse hydraulic cylinders installed on the device are used to adjust the planar position of the support. Compared to traditional segmented hoisting processes, this invention demonstrates significant comprehensive benefits in engineering practice: Firstly, construction efficiency achieves a qualitative leap. Through the combination of ground modular assembly and synchronous lifting devices, the time for a single assembly and lifting operation can be controlled within 2 working days (compared to 3-5 working days for traditional processes), reducing the overall construction period by more than 50%. Secondly, safety performance is comprehensively improved. The use of an integrated lifting system completely eliminates the risk of falling during high-altitude assembly, significantly reducing the accident rate. Thirdly, spatial adaptability breaks through conventions. Construction can be completed with only 1 / 3 of the working surface required by traditional processes, making it particularly suitable for urban overpass reconstruction and expansion, and mountainous terrain. This invention provides a new solution for "new intelligent construction." Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a cross-sectional view of the auxiliary installation device of the present invention.

[0023] Figure 2 This is a longitudinal section view of the auxiliary installation device of the present invention.

[0024] Figure 3 This is a plan view of the auxiliary installation device of the present invention.

[0025] Figure 4 This is a longitudinal section view of the auxiliary installation device of the present invention during use.

[0026] Figure 5 This is a cross-sectional view of the auxiliary installation device of the present invention during use.

[0027] Figure 6 A plan view of the auxiliary installation device of the present invention during use.

[0028] Figure 7 This is a longitudinal section view of the auxiliary installation device of the present invention being lifted into place.

[0029] In the diagram: 1. Pier body; 2. Pad stone; 3. Embedded precision-rolled threaded steel; 4. Spreader beam; 5. Lower longitudinal beam; 6. Diagonal brace; 7. Load-bearing column; 8. Upper longitudinal beam; 9. Lower horizontal bracing; 10. Upper horizontal bracing; 11. Anti-tipping bracket; 12. Anti-tipping outrigger; 13. Load-bearing crossbeam; 14. Longitudinal movement cylinder; 15. Winch; 16. Lifting system; 17. Lateral movement cylinder; 18. Cylinder limit device; 19. Bailey bridge; 20. Support crossbeam; 21. Wire rope; 22. Support distribution beam; 23. Support column. Detailed Implementation

[0030] As shown in the figure, the present invention provides an auxiliary installation device for beam-column supports in bridge construction, comprising a bottom foundation pre-installed on the top surface of the bridge pier 1, a horizontal adjustment mechanism installed on the bottom foundation for adjusting the installation position of the support beam 20, and a lifting mechanism installed on the horizontal adjustment mechanism for lifting the support beam 20. The horizontal adjustment mechanism includes a longitudinal adjustment component for adjusting the longitudinal position of the support beam 20 on the horizontal plane and a transverse adjustment component installed on the longitudinal adjustment component for adjusting the transverse position of the support beam 20 on the horizontal plane. The lifting mechanism is installed on the transverse adjustment component. The bottom foundation is a steel structure platform, and its pre-installed position needs to be determined based on the bearing capacity calculation of the top surface of the bridge pier 1. In the horizontal adjustment mechanism, both the longitudinal and transverse adjustment components are implemented through a guide rail slider mechanism. The lifting mechanism preferably uses an electric hoist or a hydraulic winch 15, and the lifting system 16 needs to be equipped with a self-locking anti-disengagement device. The connection method between the bottom foundation and the top surface of the pier 1 includes chemical anchor bolt fixing or welding of pre-embedded steel plates.

[0031] The beam-column support auxiliary installation device in this technical solution is mainly designed and applied for the overall lifting of beam-column supports. It can lift single-span cast-in-place beam supports or continuous adjacent multi-span cast-in-place beam supports. It primarily utilizes the top surface of the bridge pier 1 as the working surface for the lifting operation. The beam-column support auxiliary installation device is used to hoist the support beam 20, making it suitable for areas with limited construction space, such as urban overpass reconstruction and expansion projects and mountainous terrain, where large lifting equipment cannot be directly used. This technical solution achieves precise three-dimensional positioning of the support beam 20 through a modular structural design. The horizontal adjustment mechanism adopts a graded control strategy: the longitudinal adjustment component first completes large-scale coarse positioning, and the lateral adjustment component performs fine-tuning and calibration. The coordinated operation of the lifting mechanism and the adjustment mechanism allows the support beam 20 to be adjusted in a suspended state, avoiding the repeated lifting procedures in traditional processes. Furthermore, the ground pre-assembly and overall lifting method solves the problem of low turnover efficiency of hoisting equipment in traditional support installation, while also reducing the safety risks of high-altitude splicing operations.

[0032] In this embodiment, the bottom foundation includes pad stones 2 symmetrically arranged on both sides of the longitudinal center line on the top surface of the bridge pier 1, a lower longitudinal beam 5 arranged on the top surface of the pad stones 2, and a spreader beam 4 arranged at the middle of the top surface of the lower longitudinal beam 5. A connecting component is provided between the spreader beam 4 and the top of the bridge pier 1. One end of the connecting component is pre-embedded in a preset position in the top of the bridge pier 1, and the other end passes through the spreader beam 4 and is connected and fixed to form a tie structure, thereby connecting and fixing the spreader beam 4 and the lower longitudinal beam 5. The pad stone 2 is a precast reinforced concrete component with bolt holes pre-embedded on its top surface for fixing to the lower longitudinal beam 5 with high-strength bolts. The connecting components are precision-rolled threaded steel bars and pads and nuts set at both ends of the threaded steel bars. During the construction of the pier body 1, precision-rolled threaded steel bars 3 are pre-embedded on both sides of the pad stone 2 to assist in the anchoring of the installation device. When the precision-rolled threaded steel bars 3 are pre-embedded, pads and nuts are installed at the bottom to enhance the pull-out resistance of the pre-embedded precision-rolled threaded steel bars 3. After the pad stone 2 is completed, the lower longitudinal beam 5 is installed on the pad stone 2, with one lower longitudinal beam 5 on each of the left and right pad stones 2 of the pier body 1. A spreader beam 4 is installed on the top surface of the middle position of the lower longitudinal beam 5. The precision-rolled threaded steel bars are passed through the middle of the spreader beam 4, and then pads and nuts are installed on the top surface of the spreader beam 4. The nuts are tightened to lock the spreader beam 4 and the lower longitudinal beam 5. This technical solution forms a stable support surface through symmetrically distributed pad stones 2 and lower longitudinal beams 5. The three-point force balance is achieved by using the tension system composed of the spreader beam 4 and the connecting components. The connecting components directly transfer the construction load to the concrete structure of the bridge pier 1, effectively avoiding the risk of foundation slippage. The box section design of the spreader beam 4 ensures bending stiffness while providing a central installation reference surface for the crane mechanism, thereby ensuring the straightness of the load transfer path.

[0033] In this embodiment, it also includes load-bearing columns 7 disposed on the top surfaces of the two ends of the lower longitudinal beam 5 and an upper longitudinal beam 8 disposed on the load-bearing columns 7. A diagonal brace 6 is provided between the beam end of the upper longitudinal beam 8 and the lower end of the load-bearing column 7. The two ends of the lower longitudinal beam 5 are connected to the diagonal brace 6 and the load-bearing column 7 by welding steel plates. The lower longitudinal beam 5 is connected to the diagonal brace 6 and the load-bearing column 7 by high-strength bolts. Figure 1 As shown, the upper longitudinal beam 8 is installed on the upper part of the load-bearing column 7, and a diagonal brace 6 is set between the two. The upper longitudinal beam 8 and the diagonal brace 6 are welded together, and the upper longitudinal beam 8 and the load-bearing column 7 are bolted together. This technical solution effectively solves the problem of insufficient lateral stiffness of traditional support systems by adding a spatial support system composed of the load-bearing column 7, the upper longitudinal beam 8, and the diagonal brace 6. Among them, the load-bearing column 7 directly transfers the lifting load to the top foundation of the pier body 1; the upper longitudinal beam 8 expands the installation base of the horizontal adjustment mechanism; and the diagonal brace 6 significantly improves the lateral displacement resistance of the support system.

[0034] In this embodiment, an anti-overturning bracket 11 is provided on the outer side of the lower longitudinal beam 5. An anti-overturning support leg 12 is provided between the bottom of the anti-overturning bracket 11 and the top surface of the bridge pier 1. The anti-overturning support leg 12 and the load-bearing column 7 are located on the same horizontal cross-section. The anti-overturning bracket 11 is welded to the outer side of the lower longitudinal beam 5. The position of the anti-overturning bracket 11 corresponds to the load-bearing column 7. An anti-overturning support leg 12 is bolted to the flange at the bottom of the anti-overturning bracket 11. The anti-overturning support leg 12 is supported on the top surface of the pier 1, mainly to prevent the device from overturning during operation. This technical solution adds an anti-overturning bracket 11 and a support leg structure to the outside of the lower longitudinal beam 5, forming a spatially coordinated force-bearing system with the load-bearing column 7. When the support beam 20 is hoisted, the anti-overturning bracket 12 can effectively resist the lateral overturning moment generated by the hoisting mechanism, preventing the lower longitudinal beam 5 from lateral displacement. Furthermore, by setting the anti-overturning bracket 12 and the load-bearing column 7 on the same cross-section, it can be ensured that the reaction force of the bracket is directly transmitted to the force path of the load-bearing column 7, avoiding the generation of additional bending moment.

[0035] In this embodiment, there are two lower longitudinal beams 5, and a lower horizontal connector 9 for connecting the two lower longitudinal beams 5 is installed between their inner sides; combined with Figure 1 As shown, the two lower longitudinal beams 5 installed on the top of the left and right pad stones 2 are connected into a whole by lower horizontal bracing 9 installed on their inner sides. The lower horizontal bracing 9 can be made of I-beams or channel steel and is connected to the web of the lower longitudinal beams 5 by high-strength bolts, which facilitates disassembly and significantly improves the overall stability of the double lower longitudinal beams 5 structure. At the same time, when working on the top surface of the bridge pier 1, the horizontal load generated by the hoisting mechanism can easily cause relative displacement of the lower longitudinal beams 5. The addition of the lower horizontal bracing 9 can effectively transfer the lateral shear force and prevent excessive stress on one side of the lower longitudinal beam 5.

[0036] In this embodiment, there are two upper longitudinal beams 8, and an upper horizontal connector 10 for connecting the two upper longitudinal beams 8 is installed between their inner sides; combined with Figure 1 As shown, the upper horizontal bracing 10 can also be made of I-beams or channel steel and connected to the upper longitudinal beam 8 by high-strength bolts. The upper horizontal bracing 10 is installed inside the upper longitudinal beam 8, with a total of four locations: one at the corresponding position of the load-bearing column 7 and the other at the foremost position of the upper longitudinal beam 8. This technical solution forms a stable spatial force-bearing system by setting the upper horizontal bracing 10 between the upper longitudinal beams 8. When the horizontal adjustment mechanism moves longitudinally, the upper horizontal bracing 10 can effectively transfer the load borne by one side of the longitudinal beam to the other side, thereby balancing the forces on both sides.

[0037] In this embodiment, the longitudinal adjustment assembly includes a load-bearing crossbeam 13 with a rectangular frame structure and a driving component. The load-bearing crossbeam 13 is slidably connected to the top surface of the upper longitudinal beam 8 with a single degree of freedom. The first driving component is used to provide sliding power for the load-bearing crossbeam 13. Figure 3 As shown, a load-bearing crossbeam 13 is installed on the top of the upper longitudinal beam 8. The load-bearing crossbeam 13 has a rectangular frame structure and is fixed to the upper longitudinal beam 8 by sliding grooves and pins. A first driving component, a longitudinal displacement cylinder 14, is installed at each intersection of the load-bearing crossbeam 13 and the upper longitudinal beam 8. The longitudinal displacement cylinder 14 is locked to the upper longitudinal beam 8 by a cylinder limit device 18. The forward and backward movement of the load-bearing crossbeam 13 is achieved by the telescopic function of the longitudinal displacement cylinder 14 in conjunction with the sliding grooves. After moving to the designated position, it is fixed by pins. The longitudinal displacement cylinder 14 is existing technology and will not be described in detail here. This technical solution achieves precise longitudinal positioning of the support crossbeam 20 through a modular sliding structure. The rectangular frame load-bearing crossbeam 13 reduces its own weight while ensuring rigidity. The single-degree-of-freedom sliding connection ensures the linearity of the movement trajectory. At the same time, the horizontal adjustment process does not require interruption of the hoisting operation. Accurate positioning can be achieved by controlling the drive component, which is particularly suitable for support installation operations in narrow spaces.

[0038] In this embodiment, the lateral adjustment assembly includes a winch 15 slidably connected to the top surface of the load-bearing beam 13 with a single degree of freedom, and a second drive component for providing sliding power to the winch 15. Combined with... Figure 1 and Figure 3As shown, a winch 15 is installed on the load-bearing crossbeam 13. The winch 15 is fixed to the load-bearing crossbeam 13 by a sliding groove and a pin. A linear guide rail is set on the top surface of the load-bearing crossbeam 13. A slider matching the guide rail is installed at the bottom of the winch 15. A second driving component is installed at each intersection of the winch 15 and the load-bearing crossbeam 13. The second driving component is a horizontal movement cylinder 17. The horizontal movement cylinder 17 is equipped with a cylinder limit device 18 and locked on the load-bearing crossbeam 13. The winch 15 can move left and right by the extension and retraction function of the horizontal movement cylinder 17 in conjunction with the sliding groove. After moving to the designated position, it is fixed by a pin. This technical solution sets the winch 15 as a structure that can move laterally, so that the support beam 20 can be accurately positioned without repeatedly adjusting the longitudinal position of the load-bearing beam 13 during hoisting operations. The specific working principle is as follows: when the support beam 20 is lifted to the design elevation, the second drive component pushes the winch 15 to slide laterally along the load-bearing beam 13, driving the lifting system 16 to move synchronously, thereby realizing the fine adjustment of the position of the support beam 20 in the lateral direction.

[0039] In this embodiment, the lifting mechanism includes a lifting system 16 mounted on the winch 15. The lifting system 16 includes a hook that can be controlled by the winch 15 to lift and lower, and a wire rope 21 mounted on the hook for fixing the support beam 20. By installing the lifting system 16 on the winch 15, the winch 15 and the lifting system 16 must be able to meet the load-bearing requirements for lifting the support. The lifting system 16 is connected to the support via the wire rope 21, which can be used to connect the support beam 20 in a bottom-lifting manner. The upper part of the support beam 20 consists of a Bailey beam 19 and a support distribution beam 22. Starting the winch 15 synchronously lifts the support beam 20 to achieve the overall lifting operation of the beam-column support. This technical solution, through the integrated design of the lifting system 16, solves the problems of poor positioning accuracy and easy swaying of the support beam 20 in traditional segmented lifting. The coordinated control of the winch 15 and the lifting system enables the support beam 20 to achieve millimeter-level vertical positioning, improving the operating efficiency by more than 3 times compared to the traditional manual hoist lifting method. The anti-rotation characteristics of the wire rope 21, combined with the horizontal adjustment mechanism, effectively prevent installation misalignment caused by component deflection during hoisting. This design is particularly suitable for the precise hoisting of heavy components in narrow spaces. Through mechanical self-locking and speed-adjustable functions, it significantly reduces the risks of working at height.

[0040] This embodiment also provides a method for using an auxiliary installation device for beam-column supports in bridge construction, applicable to the aforementioned auxiliary installation device for beam-column supports in bridge construction, including the following steps:

[0041] S1. At the pre-installation position of the beam and column support, the top surface of the adjacent bridge pier 1 is used as the working surface for lifting the support beam 20, and an auxiliary installation device for the beam and column support is erected on the working surface.

[0042] S2. The support beam 20 is fixed to the lifting system 16 of the hoisting mechanism using a bottom-mounted connection method, and the winch 15 is used to lift the support beam 20 to a position 30cm above the design elevation and then suspend it. The bottom-mounted connection method refers to fixing the support beam 20 at multiple points by wrapping the bottom of the support beam 20 with steel wire rope 21 to ensure uniform force distribution during hoisting. The suspension height of 30cm above the design elevation is a safety margin set to compensate for the need for fine-tuning the position during installation.

[0043] S3. Install and fix the support columns 23 at their pre-installed positions around the bridge pier 1;

[0044] S4. Adjust the horizontal installation position of the support beam 20 through the horizontal adjustment mechanism. After the adjustment is in place, start the winch 15 to slowly lower the support beam 20 onto the support column 23 and complete the subsequent installation and fixing of the beam-column support. The operation of the horizontal adjustment mechanism includes the coordinated control of the longitudinal adjustment component and the lateral adjustment component. The longitudinal adjustment is achieved by sliding the load-bearing beam 13 on the top surface of the upper longitudinal beam 8, and the lateral adjustment is achieved by sliding the winch 15 on the top surface of the load-bearing beam 13.

[0045] In this embodiment, the winch 15 lifts the support beam 20 to a position 30cm above the design elevation and suspends it. The longitudinal and transverse hydraulic cylinders 14 and 17 adjust the planar position of the support beam 20 to the design position. After the longitudinal and transverse hydraulic cylinders 14 and 17 complete the planar position adjustment, the winch 15 is activated to lower the support 30cm and place it on the support column 23, fixing it according to the support design drawings. This completes the overall lifting operation of the beam-column support. If only a single-span cast-in-place beam support is to be lifted, only the lifting-side load-bearing beam 13 and the winch 15 need to be installed. If simultaneous lifting of multiple adjacent spans of cast-in-place beam supports is required, this device needs to be installed on the tops of multiple adjacent piers 1. This auxiliary installation device can be assembled on the ground and then hoisted to the top of the pier for fixation. Alternatively, it can be assembled from individual parts multiple times on the top of the pier. After the cast-in-place beam support lifting operation is completed, it can be hoisted to the ground and reused at the next construction site.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An auxiliary installation device for beam-column supports in bridge construction, characterized in that: The system includes a bottom foundation pre-installed on the top surface of the bridge pier, a horizontal adjustment mechanism installed on the bottom foundation for adjusting the installation position of the support beam, and a lifting mechanism installed on the horizontal adjustment mechanism for lifting the support beam. The horizontal adjustment mechanism includes a longitudinal adjustment component for adjusting the longitudinal position of the support beam on the horizontal plane and a lateral adjustment component installed on the longitudinal adjustment component for adjusting the lateral position of the support beam on the horizontal plane. The lifting mechanism is installed on the lateral adjustment component.

2. The auxiliary installation device for beam-column supports in bridge construction according to claim 1, characterized in that: The bottom foundation includes pad stones symmetrically arranged on both sides of the longitudinal centerline on the top surface of the bridge pier, a lower longitudinal beam on the top surface of the pad stones, and a spreader beam located at the middle of the top surface of the lower longitudinal beam. A connecting component is provided between the spreader beam and the top of the bridge pier. One end of the connecting component is pre-embedded in a predetermined position in the top of the bridge pier, and the other end passes through the spreader beam and is connected and fixed to form a tie structure, thereby connecting and fixing the spreader beam and the lower longitudinal beam.

3. The auxiliary installation device for beam-column supports in bridge construction according to claim 2, characterized in that: It also includes load-bearing columns installed on the top surfaces of the two ends of the lower longitudinal beam and an upper longitudinal beam installed on the load-bearing columns, wherein diagonal bracing rods are provided between the beam ends of the upper longitudinal beam and the lower ends of the load-bearing columns.

4. The auxiliary installation device for beam-column supports in bridge construction according to claim 3, characterized in that: An anti-overturning bracket is provided on the outer side of the lower longitudinal beam. An anti-overturning support leg is provided between the bottom of the anti-overturning bracket and the top surface of the bridge pier. The anti-overturning support leg and the load-bearing column are located on the same horizontal cross-section.

5. The auxiliary installation device for beam-column supports in bridge construction according to claim 3, characterized in that: There are two lower longitudinal beams, and a lower horizontal connector is installed between the inner sides of the two lower longitudinal beams to connect them.

6. The auxiliary installation device for beam-column supports in bridge construction according to claim 3, characterized in that: There are two upper longitudinal beams, and an upper horizontal connector is installed between the inner sides of the two upper longitudinal beams to connect them.

7. The auxiliary installation device for beam-column supports in bridge construction according to claim 3, characterized in that: The longitudinal adjustment assembly includes a load-bearing crossbeam with a rectangular frame structure and a first driving member. The load-bearing crossbeam is slidably connected to the top surface of the upper longitudinal beam with a single degree of freedom. The first driving member is used to provide sliding power for the load-bearing crossbeam.

8. The auxiliary installation device for beam-column supports in bridge construction according to claim 7, characterized in that: The lateral adjustment assembly includes a winch that is slidably connected to the top surface of the load-bearing beam with a single degree of freedom, and a second drive component for providing sliding power to the winch.

9. The auxiliary installation device for beam-column supports in bridge construction according to claim 8, characterized in that: The lifting mechanism includes a lifting system mounted on the winch, the lifting system including a hook that can be raised and lowered by the winch and a wire rope mounted on the hook for fixing the support beam.

10. A method for using an auxiliary installation device for beam-column supports in bridge construction, characterized in that: The auxiliary installation device for beam-column supports for bridge construction according to any one of claims 1 to 9 includes the following steps: S1. At the pre-installation position of the beam and column support, the top surface of the adjacent bridge pier is used as the working surface for lifting the support beam, and an auxiliary installation device for the beam and column support is erected on the working surface. S2. The support beam is fixed to the lifting mechanism's lifting system using a bottom-mounted connection method, and the winch is used to lift the support beam to a position 30cm above the design elevation and then suspend it. S3. Install and fix the support columns around the bridge piers according to their pre-installed positions. S4. Adjust the horizontal installation position of the support beam through the horizontal adjustment mechanism. After the adjustment is in place, start the winch to slowly lower the support beam onto the support column and complete the subsequent installation and fixing of the beam-column support.

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