Construction method of cantilever construction bridge machine adaptable to various bridge types
Patent Information
- Application Number
- CN202511296388.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2045-09-11
AI Technical Summary
[0004]鉴于现有技术的上述缺点、不足,本发明提供一种可适应多种桥型的悬臂施工造桥机的施工方法,其解决了施工效率低的技术问题
[0025]本发明的有益效果是:
Smart Images

Figure CN120990020B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of railway bridge manufacturing technology, and in particular to a construction method for a cantilever bridge construction machine that can adapt to various bridge types. Background Technology
[0002] In existing technologies, continuous beam bridges constructed using cantilever construction methods require specialized bridge-building equipment. Due to the fundamental structural differences between prestressed reinforced concrete continuous beam bridges and corrugated steel web continuous beam bridges, the bridge-building machines used in their construction also differ in structure, making them incompatible. Furthermore, when the corrugated steel web is installed asynchronously, the transport equipment must travel directly on the already welded corrugated steel web, which can easily cause displacement or deformation of the installed web. This necessitates multiple readjustments of the corrugated steel web position before concrete pouring, severely reducing construction efficiency. Summary of the Invention
[0003] (a) Technical problems to be solved
[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a construction method for a cantilever bridge construction machine that can adapt to various bridge types, which solves the technical problem of low construction efficiency.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, the main technical solutions adopted by the present invention include:
[0007] This invention provides a construction method for a cantilever bridge construction machine adaptable to various bridge types. The cantilever bridge construction machine includes a traveling device, a load-bearing device, an anchoring device, and a formwork device. It also includes a hoisting device and a conveying device. The hoisting device is detachably mounted on the top of the load-bearing device, and the conveying device is mounted on the already cast bridge body. The construction method includes the following steps:
[0008] S1. The material is transported from the near end of the already poured bridge body to the near end of the hoisting device using a conveying device;
[0009] S2. Use a hoisting device to lift the materials on the conveying device and transport them to the construction location;
[0010] S3. After the material arrives at the construction location, adjust the posture of the material by adjusting at least three lifting points on the lifting device.
[0011] S4. Install the adjusted materials into position;
[0012] S5. Concrete is poured using a formwork device to form beam segments;
[0013] S6. Drive the load-bearing device to the next construction segment via the traveling device;
[0014] S7. Repeat steps S1-S6 to complete the cantilever construction of the continuous beam bridge.
[0015] Preferably, when used in the construction of a continuous beam bridge with corrugated steel web, the material in step S1 is a corrugated steel web; in step S2, the horizontally placed corrugated steel web is lifted by a hoisting device; in step S3, the corrugated steel web is flipped from a horizontal state to a vertical state by adjusting the hoisting points; in step S4, the vertical corrugated steel web is connected and installed with the already installed corrugated steel web.
[0016] Preferably, when used for the construction of prestressed reinforced concrete continuous beam bridges, the materials in step S1 include a steel cage or a concrete hopper; in step S2, the steel cage or concrete hopper is hoisted by a hoisting device; and in step S4, the steel cage is installed in place or concrete is poured.
[0017] Preferably, the hoisting device includes a connecting frame and a hoisting mechanism. The connecting frame is detachably mounted on the top of the load-bearing device and extends longitudinally along the bridge body. The hoisting mechanism is slidably connected to the connecting frame and moves along its extension direction. The hoisting mechanism is used to lift the material on the conveying device and transport it to the construction position. The hoisting mechanism has three hoisting points, which can move laterally along the bridge body to adjust the posture of the material.
[0018] Preferably, when used for the construction of a continuous beam bridge with corrugated steel web, and the material in step S1 is corrugated steel web; in step S2, two lifting points of the lifting mechanism of the lifting device are connected to the upper edge of the corrugated steel web on the conveying device, and the third lifting point is connected to the panel of the corrugated steel web. After all lifting points are connected, the corrugated steel web is lifted and transported to the construction position; in step S3, the third lifting point on the panel of the corrugated steel web is lowered to make the horizontal corrugated steel web rotate around the end face to a vertical state. The posture of the corrugated steel web is adjusted by adjusting the two lifting points on the upper edge of the corrugated steel web laterally to align with the installed corrugated steel web.
[0019] Preferably, the hoisting mechanism includes a crane frame and three hoisting units; the crane frame is slidably connected to the connecting frame, and the extension direction of the crane frame is perpendicular to the extension direction of the connecting frame; the hoisting units are arranged parallel to the crane frame and move along the extension direction of the crane frame.
[0020] Preferably, the three hoisting units are a first hoisting unit, a second hoisting unit, and a third hoisting unit; the first hoisting unit and the second hoisting unit are set at the same height; the third hoisting unit is set at a height lower than the first hoisting unit and is located between the first hoisting unit and the second hoisting unit.
[0021] Preferably, the overhead crane frame includes two movable beams, two first connecting beams, one second connecting beam, and a movable seat; the two movable beams are arranged opposite each other, and the two first connecting beams and the second connecting beam are connected between the two movable beams, with the extension directions of the first connecting beams and the second connecting beam perpendicular to the extension direction of the connecting frame; a first hoisting unit and a second hoisting unit are disposed on the movable seat, which is disposed on the two first connecting beams, and the movable seat drives the first hoisting unit and the second hoisting unit to move along the extension direction of the first connecting beam; the second connecting beam is disposed between the two first connecting beams, and a third hoisting unit moves along the extension direction of the second connecting beam.
[0022] Preferably, it further includes a first linear motion component; the first linear motion component includes a first linear drive unit and two first tracks; the two first tracks are respectively disposed on two first connecting beams; the first linear drive unit is disposed on the movable seat, and the first linear drive unit drives the movable seat to reciprocate linearly along the first tracks.
[0023] Preferably, the hoisting unit is an electric hoist.
[0024] (III) Beneficial Effects
[0025] The beneficial effects of this invention are:
[0026] This invention relates to a construction method for a cantilever bridge-building machine adaptable to various bridge types. By incorporating detachable hoisting and conveying devices into a traditional cantilever bridge-building machine, a single set of equipment can adapt to the construction of two bridge types with significantly different structural forms: corrugated steel web continuous beam bridges and prestressed reinforced concrete continuous beam bridges. Simultaneously, through the coordinated operation of multiple lifting points of the hoisting device, the corrugated steel web is flipped from horizontal to vertical in mid-air. This avoids the defects of the traditional asynchronous method, where the conveying equipment directly travels on the installed corrugated steel web, eliminating problems such as displacement and deformation of the corrugated steel web, avoiding multiple adjustments, and thus improving construction efficiency. Attached Figure Description
[0027] Figure 1 A structural schematic diagram of a cantilever bridge-building machine from a first-person perspective;
[0028] Figure 2 A structural schematic diagram of a cantilever bridge-building machine from a second perspective;
[0029] Figure 3 This is a structural schematic diagram of the hoisting device;
[0030] Figure 4 This is a schematic diagram of the hoisting mechanism;
[0031] Figure 5 for Figure 4 The right view;
[0032] Figure 6 A schematic diagram showing the structure in which the second linear motion component and the third hoisting mechanism cooperate;
[0033] Figure 7 A structural schematic diagram of the corrugated steel web plate on the hoisting and conveying device of the hoisting mechanism;
[0034] Figure 8 A schematic diagram of the structure for lifting a horizontally positioned corrugated steel web plate by a hoisting mechanism;
[0035] Figure 9 A structural diagram illustrating how a hoisting mechanism transports corrugated steel webs to the construction site;
[0036] Figure 10 A schematic diagram of the structure for the hoisting mechanism to connect the vertically positioned corrugated steel web with the already installed corrugated steel web.
[0037] [Explanation of Labels in the Attached Images]
[0038] 1: Lifting device; 11: Connecting frame; 111: Frame body; 12: Lifting mechanism; 121: Overhead crane frame body; 1211: Moving beam; 1212: First connecting beam; 1213: Second connecting beam; 1214: Moving seat; 13: First lifting unit; 14: Second lifting unit; 15: Third lifting unit; 16: First linear motion assembly; 161: First linear drive unit; 162: First track; 17: Second linear motion assembly; 171: Second linear drive unit; 172: Moving frame; 173: Second track; 18: Third linear motion assembly;
[0039] 2: Load-bearing device; 21: Main beam; 22: Portal frame; 23: Hanger rod; 24: Bottom platform;
[0040] 3: Conveying device;
[0041] 4: Bridge body;
[0042] 5: Corrugated steel web;
[0043] 6: Traveling device;
[0044] 7: Anchoring device;
[0045] 8: Template device; 81: Bottom mold; 82: Top mold; 83: Side mold;
[0046] 9: Demolding device. Detailed Implementation
[0047] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0048] This invention provides a construction method for a cantilever bridge-building machine adaptable to various bridge types, employing a cantilever bridge-building machine, such as... Figure 1 and Figure 2 As shown, the cantilever bridge construction machine includes a traveling device 6, a load-bearing device 2, an anchoring device 7, a formwork device 8, a hoisting device 1, and a conveying device 3. The hoisting device 1 is detachably mounted on the top of the load-bearing device 2, and the conveying device 3 is mounted on the already cast bridge body 4 and extends longitudinally along the bridge body 4.
[0049] like Figure 2 As shown, the load-bearing device 2, serving as the core support structure, includes a parallel main beam 21, a gantry 22 mounted on the main beam 21, and a base platform 24 suspended below the gantry 22 by a hanger 23. The traveling device 6 is mounted on the already cast bridge body 4 and connected to the main beam 21, used to drive the bridge-building machine to move along the bridge deck. The anchoring device 7 is located at the tail of the main beam 21, used to anchor the main beam 21 to the already cast bridge body 4 at the construction site, providing reaction force for cantilever construction.
[0050] The formwork device 8 is used to support concrete and form beam segments. It includes a bottom formwork 81 laid and fixed on the bottom platform 24, a top formwork 82 suspended from the gantry 22 by a hanger 23, and two side formworks 83 located on both sides of the beam segment. The demolding or closing of the top formwork 82 and bottom formwork 81 is achieved by the lifting and lowering movement of the hanger 23, thereby separating them from the concrete. A demolding device is used to separate the side formwork 83 from the concrete; its fixed end is hinged to the gantry 22, and its movable end is connected to the side formwork 83. During demolding, the movable end moves up and down and left and right, thereby moving the side formwork 83 up and down and left and right to complete the demolding or closing action.
[0051] like Figure 1 As shown, the conveying device 3 includes a guide rail and a transport vehicle. The guide rail is set on the cast-in-place bridge body 4 and extends longitudinally along the bridge body 4. The transport vehicle is slidably connected to the guide rail and is used to carry materials.
[0052] The construction method includes the following steps:
[0053] S1. The material is transported from the near end of the cast-in-place bridge body 4 to the near end of the hoisting device 1 via the conveying device 3.
[0054] S2. The materials on the conveying device 3 are lifted by the hoisting device 1 and transported to the construction position;
[0055] S3. After the material arrives at the construction location, adjust the posture of the material by adjusting at least three lifting points on the lifting device 1.
[0056] S4. Install the adjusted materials into position;
[0057] S5. Concrete is poured using formwork device 8 to form a beam segment;
[0058] S6. Drive the load-bearing device 2 to the next construction segment via the traveling device 6;
[0059] S7. Repeat steps S1-S6 to complete the cantilever construction of the continuous beam bridge.
[0060] The present invention relates to a construction method for a cantilever bridge construction machine adaptable to various bridge types. By adding a detachable hoisting device 1 and a conveying device 3 to a traditional cantilever bridge construction machine, a single set of equipment can adapt to the construction of two bridge types with significantly different structural forms: continuous beam bridges with corrugated steel webs 5 and prestressed reinforced concrete continuous beam bridges. Simultaneously, through the coordinated operation of multiple lifting points of the hoisting device 1, the corrugated steel web 5 is directly rotated from horizontal to vertical in mid-air. This avoids the defects caused by the transfer equipment directly moving on the already installed corrugated steel web 5 in the traditional asynchronous method, eliminating problems such as displacement and deformation of the corrugated steel web 5, avoiding multiple adjustments, and thus improving construction efficiency.
[0061] When used in the construction of a continuous beam bridge with corrugated steel web 5, the material in step S1 is corrugated steel web 5.
[0062] like Figure 7 and Figure 8 As shown, in step S2, the horizontally placed corrugated steel web 5 is lifted by the lifting device 1;
[0063] like Figure 9 As shown, in step S3, the corrugated steel web 5 is flipped from a horizontal state to a vertical state by adjusting the lifting points;
[0064] like Figure 10 As shown, in step S4, the vertical corrugated steel web 5 is connected and installed with the already installed corrugated steel web 5. It should be noted that the hoisting device 1 can also hoist other materials required for the construction of continuous beam bridges using the corrugated steel web 5.
[0065] When used in the construction of prestressed reinforced concrete continuous beam bridges, the materials in step S1 include steel cages or concrete hoppers.
[0066] In step S2, the steel cage or concrete hopper is hoisted using hoisting device 1;
[0067] In step S4, the reinforcing cage is installed or concrete is poured.
[0068] In this embodiment, the hoisting device 1 required in the construction method includes a connecting frame 11 and a hoisting mechanism 12. The connecting frame 11 is detachably mounted on the top of the bridge-building machine body and extends longitudinally along the bridge body 4. The hoisting mechanism 12 is slidably connected to the connecting frame 11 and moves along its extension direction. The hoisting mechanism 12 is used to lift the materials on the conveying device 3 and transport them to the construction position. By setting a detachably connected hoisting device 1 on the bridge-building machine body and setting multiple laterally movable hoisting points in the hoisting mechanism 12, one set of equipment can meet the hoisting requirements of two different bridge types: corrugated steel web 5 continuous beam bridges (which require multi-point coordination to flip the corrugated steel web 5 from a horizontal state to a vertical state) and prestressed reinforced concrete continuous beam bridges (conventional hoisting).
[0069] Meanwhile, the hoisting mechanism 12 can move along the extension direction of the connecting frame 11 and work in coordination with the conveying device 3 to realize the material transport, hoisting and transfer from the bridge deck to the construction position, reducing intermediate links and manual intervention, and significantly improving construction efficiency.
[0070] Since the hoisting mechanism 12 has three hoisting points, the hoisting points can move laterally along the bridge body 4 to adjust the posture of the material. By adjusting the position of each hoisting point, the posture of large materials (such as corrugated steel web 5) in the air can be adjusted flexibly and accurately, so that they can dock with the installed part at the best angle, reducing the installation difficulty and operation risk.
[0071] When used for the construction of a continuous beam bridge with corrugated steel web 5, and the material in step S1 is corrugated steel web 5, in step S2, two lifting points of the lifting mechanism 12 of the lifting device 1 are connected to the upper edge of the corrugated steel web 5 on the conveying device 3, and the third lifting point is connected to the panel of the corrugated steel web 5. After all lifting points are connected, the plate is lifted and transported to the construction position. In step S3, the third lifting point on the panel of the corrugated steel web 5 is lowered, causing the horizontal corrugated steel web 5 to rotate around the end face to a vertical state. The posture of the corrugated steel web 5 is adjusted by laterally adjusting the two lifting points on the upper edge of the corrugated steel web 5 to align with the installed corrugated steel web 5.
[0072] like Figure 3As shown, the hoisting mechanism 12 includes a trolley frame 121 and three hoisting units. The trolley frame 121 is slidably connected to the connecting frame 11, and the extension direction of the trolley frame 121 is perpendicular to the extension direction of the connecting frame 11. The hoisting units are arranged parallel to the trolley frame 121 and move along the extension direction of the trolley frame 121. When the bridge-building machine is used for a continuous beam bridge with corrugated steel web 5, the hoisting device 1 is used to hoist the corrugated steel web 5. The three hoisting units in the hoisting device 1 form a three-point connection on the horizontally placed corrugated steel web 5, thereby forming a stable surface support. This effectively prevents the heavy, large-area corrugated steel web 5 from swaying or tilting during hoisting, improving the overall stability and safety of the hoisting process. Because the hoisting unit can move along the extension direction of the gantry frame 121, and the gantry frame 121 can move along the extension direction of the connecting frame 11, and the extension direction of the gantry frame 121 is perpendicular to the extension direction of the connecting frame 11, the hoisting unit has both longitudinal and lateral movement capabilities, integrating hoisting and precise positioning capabilities. This hoisting device 1, due to its stable hoisting, precise positioning, and reduced cumbersome equipment coordination processes, allows the hoisting, transportation, and installation of the corrugated steel web 5 to be carried out continuously and smoothly, significantly shortening the construction cycle of a single segment and thus improving overall construction efficiency.
[0073] like Figures 4-5 As shown, in this embodiment, taking a bridge-building machine used for a continuous beam bridge with corrugated steel web 5 and a hoisting device 1 used for hoisting the corrugated steel web 5 as an example, the three hoisting units are the first hoisting unit 13, the second hoisting unit 14 and the third hoisting unit 15. The first hoisting unit 13 and the second hoisting unit 14 are set at the same height and are respectively used to connect the ends of the corrugated steel web 5 (located at the top when in a vertical state). The third hoisting unit 15 is set at a height lower than the first hoisting unit 13 and is located between the first hoisting unit 13 and the second hoisting unit 14. The third hoisting unit 15 is connected to the panel of the corrugated steel web 5 (located at the bottom when in a vertical state).
[0074] In this embodiment, the first lifting unit 13, the second lifting unit 14, and the third lifting unit 15 are all electric hoists. The electric hoists have multi-speed adjustment capabilities, enabling accurate lifting and lowering of heavy objects, thus allowing the accurate installation of the heavy corrugated steel web 5 to a preset position. The rated lifting capacity of the electric hoist is 10000KG, suitable for construction scenarios of continuous beam bridges with large corrugated steel web 5.
[0075] like Figure 4As shown, the overhead crane frame 121 includes two movable beams 1211, two first connecting beams 1212, one second connecting beam 1213, and a movable seat 1214. The two movable beams 1211 are arranged opposite to each other, and the two first connecting beams 1212 and the second connecting beam 1213 are connected between the two movable beams 1211. The extending directions of the first connecting beams 1212 and the second connecting beam 1213 are perpendicular to the extending direction of the connecting frame 11. The movable beams 1211, the first connecting beams 1212, and the second connecting beam 1213 form a stable frame structure that can effectively support the heavy corrugated steel web 5 and its hoisting unit, preventing structural deformation due to excessive load and ensuring the stability and safety of the entire hoisting process.
[0076] The first lifting unit 13 and the second lifting unit 14 are mounted on a movable seat 1214, which is mounted on two first connecting beams 1212. The movable seat 1214 drives the first lifting unit 13 and the second lifting unit 14 to move along the extension direction of the first connecting beams 1212. The second connecting beam 1213 is positioned between the two first connecting beams 1212. The third lifting unit 15 moves along the extension direction of the second connecting beam 1213. By mounting the first lifting unit 13 and the second lifting unit 14 on the movable seat 1214 and the third lifting unit 15 on the second connecting beam 1213, the two upper lifting points can move synchronously, while the lower lifting point can move independently. This avoids interference when adjusting the position of the corrugated steel web 5, thereby improving the adjustment accuracy.
[0077] The hoisting device 1 also includes a first linear motion assembly 16, which includes a first linear drive unit 161 and two first tracks 162. The two first tracks 162 are respectively disposed on two first connecting beams 1212. The first linear drive unit 161 is disposed on a movable seat 1214, and the first linear drive unit 161 drives the movable seat 1214 to reciprocate linearly along the first tracks 162. It should be noted that the movable seat 1214 is provided with rollers, and the movable seat 1214 is rotatably connected to the first tracks 162. The first linear drive unit 161 drives at least one roller on the movable seat 1214 to rotate, thereby causing the movable seat 1214 to move along the first tracks 162.
[0078] like Figure 5 and Figure 6As shown, the hoisting device 1 also includes a second linear motion assembly 17, which includes a second linear drive unit 171, a moving frame 172, and a second track 173. The second linear drive unit 171 is mounted on the moving frame 172, and the third hoisting unit 15 is mounted on the bottom end of the moving frame 172. The second track 173 is mounted on the bottom end of the second connecting beam 1213. The second linear drive unit 171 drives the moving frame 172 to move the third hoisting unit 15 reciprocally in a linear motion along the second track 173. It should be noted that the moving frame 172 is equipped with rollers, and the moving frame 172 is rotatably connected to the second track 173. The second linear drive unit 171 drives at least one roller on the moving frame 172 to rotate, thereby causing the moving frame 172 to move along the second track 173.
[0079] like Figure 3 As shown, the connecting frame 11 includes two frame bodies 111, which are positioned at a distance from each other at the top of the bridge-building machine. The double-frame body 111 structure provides ample support points, ensuring the entire hoisting device 1 is stably positioned on the bridge-building machine, avoiding the risk of overturning, and effectively transferring the load to the main structure of the bridge-building machine.
[0080] The hoisting device 1 also includes a third linear motion assembly 18, which includes a third linear drive unit and two third rails. The two third rails are respectively arranged on the two frames 111 along the extension direction of the frame 111. The third linear drive unit is arranged on the crane frame 121. Rollers are provided on the moving column of the crane frame 121. The third linear drive unit drives at least one roller on the moving column of the crane frame 121 to rotate, thereby driving the crane frame 121 to reciprocate linearly along the third rail.
[0081] In this embodiment, although a continuous beam bridge with corrugated steel web 5 is used as an example to illustrate the specific application of the lifting device 1 in lifting and rotating the corrugated steel web 5, it should be understood that this cantilever bridge-building machine is also applicable to the construction of prestressed reinforced concrete continuous beam bridges. In this type of bridge, the lifting device 1 can be used to efficiently lift large materials such as steel cages, embedded parts, and concrete hoppers without any structural changes, and accurately transport them to the construction position within the formwork device 8. This achieves a wide adaptability of a single device to the construction needs of various bridge types, significantly improving the versatility and economy of the equipment.
[0082] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0083] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0084] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0085] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A construction method for a cantilever bridge construction machine adaptable to various bridge types, comprising a traveling device, a load-bearing device, an anchoring device, and a formwork device, characterized in that... It also includes a hoisting device and a conveying device. The hoisting device is detachably mounted on the top of the load-bearing device, and the conveying device is mounted on the already cast bridge body. The construction method includes the following steps: S1. The material is transported from the near end of the cast-in-place bridge body to below the near end of the hoisting device using the conveying device. S2. The material on the conveying device is lifted and transported to the construction position using the lifting device. The lifting device includes a connecting frame and a lifting mechanism. The connecting frame is detachably mounted on the top of the load-bearing device and extends longitudinally along the bridge body. The lifting mechanism is slidably connected to the connecting frame and moves along its extension direction. The lifting mechanism is used to lift and transport the material on the conveying device to the construction position. The lifting mechanism has three lifting points, which can move laterally along the bridge body to adjust the posture of the material. When used for the construction of a corrugated steel web continuous beam bridge, step S... When the material in 1 is a corrugated steel web, two lifting points of the lifting mechanism of the lifting device are connected to the upper edge of the corrugated steel web on the conveying device, and a third lifting point is connected to the panel of the corrugated steel web. After all lifting points are connected, the material is lifted and transported to the construction position. The lifting mechanism includes a crane frame and three lifting units. The crane frame is slidably connected to the connecting frame. The extension direction of the crane frame is perpendicular to the extension direction of the connecting frame. The lifting units are arranged parallel to the crane frame and move along the extension direction of the crane frame. The three lifting units form three lifting points. S3. When the material arrives at the construction position, the posture of the material is adjusted by adjusting the three lifting points on the hoisting device. The third lifting point on the panel of the corrugated steel web is lowered to make the horizontal corrugated steel web rotate around the end face to a vertical state. The posture of the corrugated steel web is adjusted by adjusting the two lifting points on the upper edge of the corrugated steel web to connect with the installed corrugated steel web. S4. Install the adjusted materials into position; S5. Concrete is poured using the template device to form a beam segment; S6. Drive the load-bearing device to the next construction segment via the traveling device; S7. Repeat steps S1-S6 to complete the cantilever construction of the continuous beam bridge.
2. The construction method of the cantilever bridge construction machine adaptable to various bridge types as described in claim 1, characterized in that: When used in the construction of continuous beam bridges with corrugated steel webs, the material in step S1 is corrugated steel webs; In step S2, the horizontally placed corrugated steel web is lifted using a hoisting device; In step S3, the corrugated steel web is flipped from a horizontal state to a vertical state by adjusting the lifting points; In step S4, the vertical corrugated steel web is connected and installed with the already installed corrugated steel web.
3. The construction method of the cantilever bridge construction machine adaptable to various bridge types as described in claim 1, characterized in that: When used in the construction of prestressed reinforced concrete continuous beam bridges, the materials in step S1 include steel cages or concrete hoppers. In step S2, the steel cage or concrete hopper is hoisted using the hoisting device; In step S4, the reinforcing cage is installed or concrete is poured.
4. The construction method of the cantilever bridge construction machine adaptable to various bridge types as described in claim 1, characterized in that: The three hoisting units are the first hoisting unit, the second hoisting unit, and the third hoisting unit; The first hoisting unit and the second hoisting unit are positioned at the same height; The third hoisting unit is set at a lower height than the first hoisting unit and is located between the first hoisting unit and the second hoisting unit.
5. The construction method of the cantilever bridge construction machine adaptable to various bridge types as described in claim 4, characterized in that: The overhead crane frame includes two movable beams, two first connecting beams, one second connecting beam, and a movable base; The two movable beams are arranged opposite each other, and the two first connecting beams and the second connecting beam are connected between the two movable beams. The extending directions of the first connecting beam and the second connecting beam are perpendicular to the extending direction of the connecting frame. The first hoisting unit and the second hoisting unit are mounted on the movable seat, which is mounted on two first connecting beams. The movable seat drives the first hoisting unit and the second hoisting unit to move along the extension direction of the first connecting beams. The second connecting beam is disposed between the two first connecting beams, and the third hoisting unit moves along the extension direction of the second connecting beam.
6. The construction method of the cantilever bridge construction machine adaptable to various bridge types as described in claim 5, characterized in that: It also includes a first linear motion component; The first linear motion component includes a first linear drive unit and two first tracks; The two first tracks are respectively mounted on the two first connecting beams; The first linear drive unit is disposed on the movable seat, and the first linear drive unit drives the movable seat to reciprocate linearly along the first track.
7. The construction method of the cantilever bridge construction machine adaptable to various bridge types as described in claim 6, characterized in that: The hoisting unit is an electric hoist.
Citation Information
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