Rapid erecting and sliding system for super-long multi-connected curve steel truss girder and construction method of rapid erecting and sliding system

Abstract

The invention discloses a sliding system for quickly erecting a super-long multi-connected curve steel truss girder and a construction method of the sliding system. The sliding system comprises a sliding unit and a monitoring unit, the sliding units are respectively arranged at the upper ends of the pier bracket and the assembling platform; the monitoring unit is in communication connection with the sliding unit in a wired or wireless mode. In the construction process of sliding erection of the curved steel trussed beams, after curved steel trussed beam components are lifted to an assembling platform through a lifting gantry crane and assembled into sections of the curved steel trussed beams, the sliding unit is regulated and controlled through the monitoring unit to enable each section of the curved steel trussed beams to slide to a designed position and fall, and erection of each section of the curved steel trussed beams is completed. According to the method, real-time control over the moving track of the curved steel truss girder is achieved, the purpose of rapid sliding erection construction of the curved steel truss girder is achieved, meanwhile, the occupied area of a construction site is small, the construction efficiency is high, the method is suitable for the curved steel truss girders with different curvatures, and the method has extremely high use value.

Description

Technical Field

[0001] This invention belongs to the technical field of steel truss erection equipment, and more specifically, relates to a rapid erection and sliding system for ultra-long multi-section curved steel trusses and its construction method. Background Technology

[0002] Currently, steel trusses are increasingly widely used in bridge construction. Their high strength, good plasticity and toughness, and excellent weldability make them an ideal choice for crossing major rivers, deep valleys, or meeting the needs of complex terrain. However, with the popularization of steel truss construction, the diversity of construction methods has also increased, including traditional hoisting, cantilever assembly, and other techniques. Each method has its advantages, but they also face specific challenges. For example, the traditional in-situ hoisting method for curved steel trusses requires a certain amount of construction space, and the amount of work involved in the lower support structure is substantial. Furthermore, due to the structural characteristics of steel trusses, loads are mainly transferred at the nodes, requiring extremely precise handling of these nodes during construction to ensure the stability and safety of the entire structure. Sliding construction technology is a highly efficient construction method developed specifically to address this characteristic. This method allows steel trusses to be pre-assembled on the ground or temporary supports, and then gradually slid forward into place using a laid sliding track system, making it particularly suitable for space-constrained or environmentally sensitive areas.

[0003] In the prior art, Chinese Patent CN113718662B discloses a method for jacking and sliding complex vertical curved steel truss girders. This method increases the sliding stability of the vertical curved steel truss girder while reducing the amount of padding work, thus improving the construction efficiency of jacking and sliding complex vertical curved steel truss girders. Chinese Patent CN115434256A discloses a curved platform and its construction device for jacking vertical curved steel truss bridges. This platform uses a jacking system to drive the lower steel truss girder to slide along the curved surface of the sliding beam. Because the curve of the surface is consistent with the vertical curve of the bridge's main truss bottom, the steel truss girder can slide along the vertical curve of the bridge's main truss bottom. When it reaches the installation position or enters the next jacking section, the steel truss girder... The bottom and the curved surface of the slide beam are always parallel, and the vertical height difference is always consistent. Therefore, there will be no large height difference between the actual position and the pre-installation position. Thus, it is not necessary to add extra height pads between the steel truss beam and the slide beam to adjust the height difference, thereby reducing the difficulty and risk of the steel truss beam jacking construction. However, the above solutions do not solve the following technical problems: (1) During the jacking construction, especially for large-span bridges, it may be necessary to occupy a large area for the laying and jacking of the slide beam, which may cause some interference to the surrounding environment and traffic. (2) Jacking construction is more suitable for straight or small-slope bridges. It is not suitable for the erection of transverse curved steel trusses, and the construction is difficult and inefficient. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a rapid erection and sliding system for ultra-long multi-section curved steel trusses and its construction method. The system uses a gantry crane to lift the curved steel truss components onto an assembly platform and assemble them into a single curved steel truss section. Then, a monitoring unit controls the sliding unit to slide each section of the curved steel truss to its designed position and lower it, completing the erection of each section. This achieves real-time control of the curved steel truss's trajectory, enabling rapid sliding and erection of the curved steel truss. Furthermore, it requires minimal construction space, boasts high construction efficiency, and is adaptable to curved steel trusses with varying curvatures, making it highly valuable in practical applications.

[0005] To achieve the above objectives, the present invention provides a rapid erection and sliding system for ultra-long multi-section curved steel trusses, comprising: a sliding unit and a monitoring unit; The sliding unit includes: shims, beam-moving tracks, lifting jacks, and beam-carrying trolleys; the shims are fixedly mounted on the upper part of the pier bracket and the assembly platform; the beam-moving tracks are fixedly mounted on the upper part of the shims, and their two sides are prepared according to the radius of curvature of the curved steel truss beam at the design position. Simultaneously, several beam-moving tracks are raised using several shims based on several pier elevation data; several lifting jacks are respectively fixedly mounted on the upper part of the pier bracket and the assembly platform; several beam-carrying trolleys are detachably mounted on the upper part of the beam-moving tracks. The monitoring unit includes: a total station for monitoring the curved steel truss to obtain the edge coordinate values ​​of the curved steel truss, and a control component that is communicatively connected to the total station and the sliding unit respectively; the monitoring unit controls the sliding unit to slide each segment of the curved steel truss to the design position and lower the beam, thereby completing the erection of each segment of the curved steel truss, realizing real-time control of the running trajectory of the curved steel truss, and achieving the purpose of rapid sliding erection of the curved steel truss.

[0006] Further, the beam transport trolley includes: a beam transport vehicle body, a moving roller, guide rail clamping rollers, a bracket, a servo reducer, and a worm gear; the beam transport vehicle body slides on the upper end of the beam transport track via the moving rollers, and its lower end is fixedly provided with two adjacent square grooves; a plurality of the moving rollers are disposed inside the square grooves; the guide rail clamping rollers are detachably disposed on both sides of the beam transport vehicle body via support plates fixedly disposed on the outside of the two square grooves; the bracket is fixedly disposed on one side of the beam transport vehicle body, and a first vertical support plate and a second vertical support plate are fixedly disposed on the lower side of the bracket; a second vertical support plate is fixedly disposed on the outer side of the second vertical support plate. There is a horizontal support plate; a worm gear bracket is fixedly provided at the bottom end of the second vertical support plate and the horizontal support plate; the servo reducer is fixedly provided on the outside of the first vertical support plate, the output shaft of the servo reducer passes through the first vertical support plate to the space between the first vertical support plate and the second vertical support plate, and a gear is fixedly sleeved on its outside; the worm is provided between the two worm gear brackets, so that it can rotate between the two worm gear brackets, and one end of the worm passes through the worm gear bracket at the bottom end of the second vertical support plate, and is connected to the servo reducer through the gear fixedly sleeved on its outside.

[0007] Furthermore, square grooves are fixed on both sides of the beam-moving track and are adapted to the guide rail clamping wheels.

[0008] Furthermore, a worm gear is fixedly provided on one side of the beam-moving track, and the worm is adapted to the worm gear.

[0009] Furthermore, there are multiple beam-carrying trolleys at the upper end of the beam-moving track, and the operating mode of the multiple beam-carrying trolleys at the upper end of each beam-moving track is the same.

[0010] Furthermore, the running speed of the beam transport trolley is adjusted in real time by the monitoring unit, and the maximum speed is 31.4 cm / min.

[0011] Furthermore, the distance the beam-carrying trolley travels on the beam-moving track in a single trip is less than the length of the beam-moving track.

[0012] Furthermore, the bridge piers are divided into inner arc piers and outer arc piers according to their distance from the center of the curve, and the corresponding inner arc piers and outer arc piers form a group. The moving speeds of several beam transport trolleys at the upper end of a group of inner arc piers and outer arc piers are not completely consistent.

[0013] Furthermore, the control components include: a main control station, a switch, a distributed I / O module, a PLC module, and a drive module, and the main control station, the switch, the distributed I / O module, the PLC module, and the drive module maintain communication connections through connection methods including daisy chaining.

[0014] Another aspect of the present invention provides a construction method for a rapid erection sliding system for ultra-long multi-section curved steel trusses, which utilizes the sliding system described above and includes the following steps: S1: Inspect the equipment and machinery required for the sliding construction, including temporary and permanent supports, and ensure they are in good working order; prepare the necessary construction materials and ensure that the materials meet the standards. S2: Install shims, beam-moving rails and lifting jacks sequentially on the upper end of the pier bracket, and install several beam-carrying trolleys on the upper end of the pier bracket near the assembly platform; S3: After the curved steel truss girder component is lifted to the assembly platform by the lifting gantry crane and assembled into a section of curved steel truss girder, the curved steel truss girder is hoisted to the upper end of the beam transport trolley on the assembly platform; S4: After the beam transport trolley is controlled by the control component to move the curved steel truss beam a certain distance at a certain speed, the lifting jack is used to lift the curved steel truss beam, the beam transport trolley is moved back to the starting position, and the lifting jack is retracted to place the curved steel truss beam on the beam transport trolley. S5: Repeat step S4 until the rear end of the curved steel truss is moved forward out of the pier, remove several of the beam transport trolleys at the upper end of the pier, transport the beam through the curved steel truss, and install it on the nearest pier in the forward direction of the curved steel truss. S6: Repeat steps S4 and S5 until the beam transport trolley moves a section of the curved steel truss to the design position, the lifting jack lifts the curved steel truss, the temporary support is placed on the corresponding pier to support the curved steel truss, the beam transport trolley, the beam moving track and the shims are removed, and the permanent support is installed. S7: The lifting jack lifts the curved steel truss beam, removes the temporary support, and then the lifting jack retracts to place the curved steel truss beam on the permanent support; S8: Repeat steps S6 and S7 to slide each segment of the curved steel truss beam to the design position. After verifying that there are no errors, proceed with the subsequent construction.

[0015] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects: 1. The sliding system of the present invention lifts the curved steel truss components to the assembly platform using a lifting gantry crane and assembles them into a section of curved steel truss. Then, the monitoring unit controls the sliding unit to slide each section of the curved steel truss to the designed position and lower it, thus completing the erection of each section of the curved steel truss. This achieves real-time control of the curved steel truss's running trajectory, enabling rapid sliding and erection of the curved steel truss. Furthermore, it requires little construction space, has high construction efficiency, and is adaptable to curved steel trusses with different curvatures, making it highly valuable.

[0016] 2. The sliding system of the present invention supports the curved steel truss girder to move along the direction of the bridge pier through a plurality of the girder-carrying trolleys, and adjusts the moving speed of the plurality of girder-carrying trolleys at different ends of the girder-moving tracks through the servo reducer to realize the curved movement of the curved steel truss girder; at the same time, when the girder-carrying trolley moves forward to the position, the lifting jack lifts the curved steel truss girder, the girder-carrying trolley moves backward to the starting position, the lifting jack retracts to put the curved steel truss girder back onto the girder-carrying trolley, and so on to complete the forward movement of the curved steel truss girder in a cycle, thereby reducing the need for large lifting machinery, reducing the difficulty of sliding operation and construction interference, facilitating monitoring and adjustment, and improving construction efficiency.

[0017] 3. The sliding system of the present invention obtains the edge coordinate values ​​of the curved steel truss in real time through the control component and adjusts the running speed of the beam transport trolleys at the upper ends of the inner and outer arc piers to achieve precise control of the sliding construction process. Thus, through intelligent control, the number of construction personnel is effectively reduced, labor costs are lowered, and construction safety is improved by reducing high-altitude operations. At the same time, precise control of sliding speed and position avoids unnecessary damage to the curved steel truss and extends its service life.

[0018] 4. The sliding system of the present invention, through the rolling friction generated by the beam transport trolley moving the curved steel truss beam, effectively reduces the total friction force compared with the sliding friction force of conventional jacking, weakens the impact on the substructure, and improves construction efficiency. Attached Figure Description

[0019] Figure 1 This is a side view of the bridge pier and sliding system according to an embodiment of the present invention; Figure 2 This is a top view of the bridge pier and sliding system according to an embodiment of the present invention; Figure 3 This is a side view of the sliding unit according to an embodiment of the present invention; Figure 4 This is a top view of the sliding unit according to an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the beam-carrying trolley according to an embodiment of the present invention; Figure 6 This is a side view of the beam-carrying trolley according to an embodiment of the present invention; Figure 7 This is a front view of the beam-carrying trolley according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the construction method of the sliding system according to an embodiment of the present invention.

[0020] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-Pier, 11-Pier bracket, 12-Inner arc pier, 13-Outer arc pier, 2-Assembly platform, 3-Curved steel truss, 4-Shim, 41-Stop block, 5-Beam moving track, 51-Worm bar, 6-Lifting jack, 7-Beam transport trolley, 71-Beam transport vehicle body, 72-Moving roller, 73-Guide rail clamping wheel, 74-Bracket, 741-First vertical support plate, 742-Second vertical support plate, 743-Horizontal support plate, 744-Worm support, 75-Servo reducer, 76-Worm. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figures 1 to 7 As shown, one embodiment of the present invention provides a rapid erection and sliding system for ultra-long multi-section curved steel truss girders, comprising: a sliding unit and a monitoring unit; the sliding unit is respectively installed on the upper end of the pier bracket 11 and the assembly platform 2; the monitoring unit is connected to the sliding unit via wired or wireless means; during the construction of the curved steel truss girder sliding erection, the curved steel truss girder components are lifted to the assembly platform 2 by a lifting gantry crane and assembled into a section of curved steel truss girder 3, and then the sliding unit is controlled by the monitoring unit to slide each section of curved steel truss girder 3 to the design position and lower the girder, thus completing the erection of each section of curved steel truss girder 3, realizing real-time control of the running trajectory of the curved steel truss girder 3, achieving the purpose of rapid sliding erection of the curved steel truss girder 3, and at the same time, the construction site occupies a small area, the construction efficiency is high, and it is adaptable to curved steel trusses with different curvatures, thus having extremely high application value.

[0023] Preferably, the assembly platform 2 is located on one side of the higher pier 1 in the approach bridge; Preferably, the bridge pier 1 is divided into inner arc bridge pier 12 and outer arc bridge pier 13 according to the distance from the center of the curve, and the corresponding inner arc bridge pier 12 and outer arc bridge pier 13 form a group; Specifically, such as Figures 1 to 7 As shown, the sliding unit is located on the upper end of the pier bracket 11 and the assembly platform 2, and is used to support the curved steel truss beam 3 and drive it to move along the pier 1 to the designed position. It includes: shims 4, beam moving track 5, lifting jacks 6 and beam transport trolley 7. Several of the aforementioned gaskets 4 are fixedly installed on the upper end of the pier bracket 11 and the assembly platform 2; Preferably, the gasket 4 is mainly made of stainless steel; Preferably, the gasket 4 is wedge-shaped; In an optional embodiment, baffles 41 are fixedly provided on both sides of the gasket 4 to enhance the stability of the gasket 4 and ensure construction safety; The beam-moving track 5 is fixedly mounted on the upper end of the pad 4 to support the beam-carrying trolley 7 and restrict the direction of movement of the beam-carrying trolley 7; Preferably, the beam-shifting track 5 is prepared on both sides according to the radius of curvature of the curved steel truss beam 3 at the designed position; Preferably, square grooves are fixed on both sides of the beam-moving track 5 to ensure the safety of the beam-carrying trolley 7 during movement; Preferably, a worm gear 51 is fixedly provided on one side of the beam-moving track 5 to assist the movement of the beam-carrying trolley 7; Preferably, there are multiple beam-carrying trolleys 7 on the upper end of the beam-moving track 5, and the operating mode of the multiple beam-carrying trolleys 7 on the upper end of each beam-moving track 5 is the same; Preferably, the several beam-moving tracks 5 are raised using several shims 4 according to the elevation data of several piers 1; Several of the lifting jacks 6 are respectively fixed on the upper end of the pier bracket 11 and the assembly platform 2, and are used to lift the curved steel truss beam 3 to cooperate with the beam transport trolley 7 to move the curved steel truss beam 3. Preferably, the two lifting jacks 6 are respectively fixed at both ends of the pad 4 along the approach bridge direction; Several of the beam transport trolleys 7 are detachably mounted on the upper end of the beam transfer track 5, and are used to drive the curved steel truss beam 3 to move forward and backward along the beam transfer track 5. Each trolley includes: a beam transport vehicle body 71, a moving roller 72, a guide rail clamping wheel 73, a bracket 74, a servo reducer 75, and a worm gear 76. Preferably, the running speed of the beam transport trolley 7 is adjusted in real time by the monitoring unit, and the maximum speed is 31.4 cm / min; Preferably, the distance traveled by the beam-carrying trolley 7 on the beam-moving track 5 in a single trip is less than the length of the beam-moving track 5; Preferably, the beam transport trolley 7 has a load capacity of 750 tons; The beam transport vehicle 71 slides on the upper end of the beam transfer track 5 via the movable roller 72; Preferably, the upper end of the beam transport vehicle body 71 is a square flat plate, and two adjacent square grooves are fixedly provided at its lower end; Several of the movable rollers 72 are disposed inside the square groove, allowing them to rotate inside the square groove; The guide rail clamping wheel 73 is detachably mounted on both sides of the beam transport vehicle body 71 via a support plate fixed to the outside of the two square grooves. Preferably, a plurality of the guide rail clamping rollers 73 fall into the square grooves on both sides of the beam-moving track 5 to ensure the safety of the beam-carrying trolley 7 during movement; Preferably, the guide rail clamping wheel 73 can rotate within the square grooves on both sides of the moving beam track 5; The bracket 74 is fixedly mounted on one side of the beam transport vehicle body 71 and located above the worm gear 51. A first vertical support plate 741 and a second vertical support plate 742 are fixedly mounted on the lower side of the bracket 74. A transverse support plate 743 is fixedly mounted on the outer side of the second vertical support plate 742. A worm gear bracket 744 is fixedly mounted at the bottom end of the second vertical support plate 742 and the transverse support plate 743. Preferably, the second vertical support plate 742 and the horizontal support plate 743 are reinforced by triangular ribs to ensure structural stability; The servo reducer 75 is fixedly mounted on the outside of the first vertical support plate 741; Preferably, the output shaft of the servo reducer 75 passes through the first vertical support plate 741 to the space between the first vertical support plate 741 and the second vertical support plate 742, and a gear is fixedly sleeved on its outer side. The worm 76 is disposed between the two worm supports 744, allowing it to rotate between the two worm supports 744; Preferably, the worm gear 76 is adapted to the worm nut 51 to enable the beam transport trolley 7 to move along the beam transfer track 5; Preferably, one end of the worm gear 76 passes through the worm gear bracket 744 at the bottom end of the second vertical support plate 742, and is connected to the servo reducer 75 through a gear fixedly sleeved on its outer side, so as to provide power for the movement of the beam transport trolley 7 and control the movement direction of the beam transport trolley 7; Preferably, the moving speeds of several beam-carrying trolleys 7 at the upper ends of a group of inner arc piers 12 and outer arc piers 13 are not completely consistent, so as to make the curved steel truss beam 3 move in a curved manner; During the sliding construction of the curved steel truss girder 3, the curved steel truss girder 3 is supported by several beam-carrying trolleys 7 moving along the direction of the pier 1. The moving speed of several beam-carrying trolleys 7 on different beam-moving tracks 5 is adjusted by the servo reducer 75 to realize the curved movement of the curved steel truss girder 3. At the same time, when the beam-carrying trolley 7 moves forward to its position, the lifting jack 6 lifts the curved steel truss girder 3, the beam-carrying trolley 7 moves backward to the starting position, and the lifting jack 6 retracts to put the curved steel truss girder 3 back onto the beam-carrying trolley 7. This cycle is repeated to complete the forward movement of the curved steel truss girder 3, thereby reducing the need for large lifting machinery, reducing the difficulty of sliding operation and construction interference, facilitating monitoring and adjustment, and improving construction efficiency.

[0024] Specifically, such as Figures 1 to 4 As shown, the monitoring unit is connected to the sliding unit via wired or wireless means to control the entire sliding construction process, and includes: a total station and control components; Several total stations are installed on the outside of the bridge pier 1 and are communicatively connected to the control component to monitor the curved steel truss 3 to obtain the edge coordinate values ​​of the curved steel truss 3. The control unit is communicatively connected to the total station and the sliding unit, and includes: a main control station, a switch, a distributed I / O module, a PLC module, and a drive module; The main control station is used to process the edge coordinate values ​​of the curved steel truss beam 3 and issue control commands. The switch, the distributed I / O module, and the PLC module are used to collect field data and execute instructions from the main control station; The drive module is used to receive control commands and control the lifting and retraction of the lifting jack 6 and the movement mode of the beam transport trolley 7. Preferably, the main control station, the switch, the distributed I / O module, the PLC module, and the drive module maintain communication connections through connection methods including daisy chaining; Preferably, the monitoring unit communicates via a communication protocol including Siemens PROFINT.

[0025] During the sliding construction of the curved steel truss 3, the control component acquires the edge coordinate values ​​of the curved steel truss 3 in real time and adjusts the running speed of the beam transport trolleys 7 at the upper ends of the inner arc piers 12 and the outer arc piers 13. This achieves precise control of the sliding construction process, thereby effectively reducing the number of construction personnel and labor costs through intelligent control. Furthermore, by reducing high-altitude operations, construction safety is improved. At the same time, precise control of the sliding speed and position avoids unnecessary damage to the curved steel truss 3 and extends its service life.

[0026] like Figures 1 to 8 As shown, another embodiment of the present invention provides a construction method for a rapid erection and sliding system for ultra-long multi-section curved steel truss girders, comprising the following steps: S1: Inspect the equipment and machinery required for the sliding construction, including temporary and permanent supports, and ensure they are in good working order; prepare the necessary construction materials and ensure that the materials meet the standards. S2: Install shims 4, beam-moving rails 5 and lifting jacks 6 sequentially on the upper end of the pier bracket 11, and install several beam-carrying trolleys 7 on the upper end of the pier bracket 11 near the assembly platform 2. S3: After the curved steel truss girder component is lifted to the assembly platform 2 by the lifting gantry crane and assembled into a section of curved steel truss girder 3, the curved steel truss girder 3 is hoisted to the upper end of the beam transport trolley 7 on the assembly platform 2; S4: After the beam transport trolley 7 is adjusted by the control component to drive the curved steel truss beam 3 to move a certain distance at a certain speed, the lifting jack 6 is used to lift the curved steel truss beam 3, the beam transport trolley 7 is moved back to the starting position, and the lifting jack 6 is retracted to place the curved steel truss beam 3 on the beam transport trolley 7. S5: Repeat step S4 until the rear end of the curved steel truss 3 moves forward out of the pier 1, remove several of the beam transport trolleys 7 at the upper end of the pier 1, transport them through the curved steel truss 3, and install them on the nearest pier 1 in the forward direction of the curved steel truss 3. S6: Repeat steps S4 and S5 until the beam transport trolley 7 moves a section of the curved steel truss 3 to the design position, the lifting jack 6 lifts the curved steel truss 3, the temporary support is placed on the corresponding pier 1 to support the curved steel truss 3, the beam transport trolley 7, the beam moving track 5 and the shim 4 are removed, and the permanent support is installed. S7: The lifting jack 6 lifts the curved steel truss 3, removes the temporary support, and then the lifting jack 6 retracts to place the curved steel truss 3 on the permanent support. S8: Repeat steps S6 and S7 to slide each segment of the curved steel truss beam 3 to the design position. After verifying that there are no errors, proceed with the subsequent construction.

[0027] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] In this patent, the terms "comprising," "including," or any other variations thereof are intended to cover a 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit it; those skilled in the art will readily understand that the above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A super-long multi-connected curved steel truss beam rapid erection sliding system, characterized in that, The utility model relates to a kind of curve steel truss erection device and method, including: Slip unit and monitoring unit; The slip unit includes: gasket (4), beam moving track (5), jacking jack (6) and beam transport trolley (7);The gasket (4) is fixedly arranged on the upper end of pier bracket (11) and assembly platform (2);The beam moving track (5) is fixedly arranged on the upper end of the gasket (4), and its two sides are prepared according to the curvature radius of the curve steel truss (3) of design position curve, at the same time, several beam moving tracks (5) are elevated using several gaskets (4) according to the elevation data of several piers (1);Several jacking jacks (6) are respectively fixedly arranged on the upper end of the pier bracket (11) and the assembly platform (2);Several beam transport trolleys (7) are detachably arranged on the upper end of the beam moving track (5). The monitoring unit includes: total station for monitoring the curve steel truss (3) to obtain the edge coordinate value of the curve steel truss (3), and control component respectively communicated with the total station and the slip unit;Through the monitoring unit, the slip unit is regulated and controlled to slide each curve steel truss (3) to design position and beam landing, complete the erection of each curve steel truss (3), realize the real-time control of the running track of the curve steel truss (3), achieve the purpose of rapid slip erection construction of the curve steel truss (3).

2. The slip system of claim 1, wherein, The beam transport trolley (7) includes: beam transport trolley body (71), moving roller (72), guide rail clamping wheel (73), support (74), servo reducer (75) and worm (76);The beam transport trolley body (71) slides on the upper end of the beam moving track (5) through the moving roller (72), and the lower end is fixedly provided with two adjacent square grooves;Several moving rollers (72) are arranged in the square groove;The guide rail clamping wheel (73) is detachably arranged on both sides of the beam transport trolley body (71) through the support plate fixedly arranged outside the two square grooves;The support (74) is fixedly arranged on one side of the beam transport trolley body (71), and the lower side of the support (74) is fixedly provided with a first vertical support plate (741) and a second vertical support plate (742);The outer side of the second vertical support plate (742) is fixedly provided with a horizontal support plate (743);The bottom end of the second vertical support plate (742) and the horizontal support plate (743) is fixedly provided with a worm support (744);The servo reducer (75) is fixedly arranged outside the first vertical support plate (741), and the output shaft of the servo reducer (75) penetrates through the first vertical support plate (741) to between the first vertical support plate (741) and the second vertical support plate (742), and a gear is fixedly sleeved outside it;The worm (76) is arranged between two worm supports (744), so that it rotates between two worm supports (744), and one end of the worm (76) penetrates through the worm support (744) at the bottom end of the second vertical support plate (742), and is drivingly connected with the servo reducer (75) through the gear fixedly sleeved outside it.

3. The slip system of claim 2, wherein, The moving beam track (5) is fixed with square grooves on both sides, which are matched with the guide rail clamp wheel (73).

4. The slip system of claim 2, wherein, The moving beam track (5) is fixed with a worm nut strip (51) on one side, and the worm (76) is matched with the worm nut strip (51).

5. The slip system according to any one of claims 1 to 4, characterized in that The number of the beam transport trolleys (7) on the upper end of the moving beam track (5) is multiple, and the operation modes of the beam transport trolleys (7) on the upper end of each moving beam track (5) are the same.

6. The slip system according to any one of claims 1 to 4, characterized in that The running speed of the beam transport trolley (7) is adjusted in real time by the monitoring unit, and the maximum speed is 31.4 cm / min.

7. The slip system according to any one of claims 1 to 4, characterized in that The running distance of the beam transport trolley (7) on the moving beam track (5) is less than the length of the moving beam track (5) in a single operation.

8. The slip system according to any one of claims 1 to 4, characterized in that The pier (1) is divided into an inner arc pier (12) and an outer arc pier (13) according to the distance from the center of the curve, and the inner arc pier (12) and the outer arc pier (13) correspond to a group, and the moving speeds of the beam transport trolleys (7) on the upper end of the inner arc pier (12) and the outer arc pier (13) in a group are not completely consistent.

9. The slip system according to any one of claims 1 to 4, characterized in that The control component includes a master control station, a switch, a distributed IO module, a PLC module, and a driving module, and the master control station, the switch, the distributed IO module, the PLC module, and the driving module are communicatively connected through a connection mode including a daisy chain.

10. A construction method of a super-long multi-connected curved steel truss beam fast-erection sliding system, implemented by using the sliding system according to any one of claims 1-9, characterized in that, The method comprises the following steps: S1: Check the equipment and machinery required for the sliding construction, including temporary supports and permanent supports, to ensure that they are in good working condition; prepare the required construction materials and ensure that the material quality meets the standards; S2: Install the gasket (4), the moving beam track (5), and the jacking jack (6) on the upper end of the pier bracket (11) in sequence, and install several beam transport trolleys (7) on the upper end of the pier bracket (11) near the assembly platform (2); S3: After lifting the curved steel truss member to the assembly platform (2) by the lifting crane and assembling it into a curved steel truss (3), hoist the curved steel truss (3) to the upper end of the beam transport trolley (7) on the assembly platform (2); S4: After controlling the beam transport trolley (7) to move a certain distance at a certain speed by the control component, use the jacking jack (6) to jack up the curved steel truss (3), and then retreat the beam transport trolley (7) to the starting position, and then retract the jacking jack (6) to place the curved steel truss (3) on the beam transport trolley (7); S5: Repeat step S4 until the rear end of the curved steel truss (3) moves out of the pier (1), remove the several beam transport trolleys (7) on the upper end of the pier (1) at this position, pass through the curved steel truss (3) from the inside, and install them on the nearest pier (1) in the forward direction of the curved steel truss (3). S6: repeat steps S4 and S5 until the beam trolley (7) moves a section of the curved steel truss girder (3) to the designed position, the jacking jack (6) jacks up the curved steel truss girder (3), the temporary support supports the curved steel truss girder (3) on the corresponding pier (1), the beam trolley (7), the beam moving track (5) and the gasket (4) are removed, and the permanent support is installed; S7: the jacking jack (6) jacks up the curved steel truss girder (3), removes the temporary support, and then the jacking jack (6) retracts to place the curved steel truss girder (3) on the permanent support; S8: repeat steps S6 and S7 to slide each section of the curved steel truss girder (3) to the designed position, and after checking that there is no error, subsequent construction is carried out.

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