Foldable construction system for an assembled bridge cast-in-place continuous segment

Abstract

The utility model provides a kind of foldable construction system of assembly type bridge cast-in-place continuous section, it is related to bridge construction technical field;Among them, foldable construction platform includes ladder stand subassembly, support subassembly and rotating subassembly.Wherein, the top of the ladder stand subassembly is fixedly connected with the top surface of bridge flange plate;The support subassembly is set to the bottom end of the ladder stand subassembly, one end of the support subassembly is detachably connected with the stopper on bridge bent cap, the other end of the support subassembly is rotatably connected with the bottom end of the ladder stand subassembly, and the other end of support subassembly can rotate relative to the ladder stand subassembly;The rotating subassembly is set between the bottom end of the ladder stand subassembly and the other end of the support subassembly, and the support subassembly is rotated relative to the ladder stand subassembly.The method provided by the utility model can improve construction safety and efficiency, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a foldable construction system for cast-in-place continuous sections of prefabricated bridges. Background Technology

[0002] The main construction method for prefabricated prestressed reinforced concrete bridges that are initially simply supported and then transition to a continuous structure is as follows: After the prefabricated beams of two adjacent spans are installed, a cast-in-place continuous section needs to be constructed at the pier top, i.e., the cast-in-place crossbeam at the mid-support of the prefabricated continuous beam. Then, the negative moment prestressing engineering is constructed, transforming the simply supported beam into a continuous beam. Because the outer flange of the bridge side beam is outside the pier cap beam, and the outermost web of the side beam is close to the pier cap beam block, the top surface of the block is generally only about 30cm wide, leaving insufficient working area for construction personnel to approach and work safely. When constructing the cast-in-place continuous section at the pier top (i.e., the crossbeam at the mid-support of the continuous beam), the installation and reinforcement of the transverse end reinforcement, side formwork, and bottom formwork of the outer flange of the side beam are difficult. A reliable working platform needs to be set up under the outer flange of the bridge side beam, outside the pier cap beam block. Traditional construction platform methods include erecting scaffolding, but this involves a large amount of work in scaffolding installation and dismantling, is labor-intensive, time-consuming, costly, inefficient, and unsuitable for high-pier bridges or situations crossing rivers, roads, canyons, etc. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a foldable construction system for cast-in-place continuous sections of prefabricated bridges, so as to improve construction safety and efficiency and reduce construction costs.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A foldable construction system for cast-in-place continuous sections of prefabricated bridges includes:

[0006] A ladder assembly, the top of which is fixedly connected to the top surface of the bridge flange plate;

[0007] A support assembly is disposed at the bottom end of the ladder assembly. One end of the support assembly is detachably connected to a stop block on the bridge cap beam, and the other end of the support assembly is rotatably connected to the bottom end of the ladder assembly, and the other end of the support assembly is rotatable relative to the ladder assembly; and

[0008] A rotating component is disposed between the bottom end of the climbing assembly and the other end of the support assembly, and the support assembly is rotated relative to the climbing assembly.

[0009] In one embodiment, the ladder assembly includes:

[0010] Two vertical support ribs are provided, arranged in parallel, and their top ends are fixedly connected to one side of the bridge crash barrier; and

[0011] Multiple transverse support ribs are evenly distributed between two vertical support ribs.

[0012] In one embodiment, a first hook is provided at the top of the two vertical support ribs.

[0013] In one embodiment, the rotating assembly includes:

[0014] The first fixing nut is disposed at the bottom end of the ladder assembly;

[0015] A second fixing nut is disposed at the other end of the support assembly, and the second fixing nut is offset from and opposite to the first fixing nut; and

[0016] A rotating shaft is provided, which passes through the first fixing nut and the second fixing nut;

[0017] In one embodiment, the support component is a support platform, the support platform comprising:

[0018] The platform body, which is a mesh structure, is used to support construction personnel and materials; and

[0019] The platform frame is located on both sides of the platform body and is fixedly connected to both sides of the platform body respectively. One end of the platform frame is detachably connected to the stop block on the bridge cap beam, and the other end of the platform frame is rotatably connected to the bottom end of the ladder assembly.

[0020] In one embodiment, a second hook is provided at one end of the platform frame to be detachably connected to a stop on the bridge cap beam.

[0021] In one embodiment, a hanging rope is provided at one end of the platform frame. The rotation angle and position of the platform frame are adjusted by controlling the opening and closing of the hanging rope, so that the platform frame can switch between vertical, horizontal and intermediate positions.

[0022] In one embodiment, it also includes:

[0023] An anchoring and limiting component is disposed at the connection between the climbing ladder component and the bridge flange plate, and is used to anchor the top of the climbing ladder component to the bridge flange plate.

[0024] In one embodiment, both the ladder assembly and the support assembly are made of steel bars or structural steel.

[0025] A construction method based on the aforementioned foldable construction system for cast-in-place continuous sections of prefabricated bridges includes the following steps:

[0026] Loosen the hanging rope and control the support platform to rotate to a vertical position;

[0027] Raise the hanging rope and control the rotation of the support platform to lift it to the inside of the climbing ladder assembly;

[0028] Install the top of the ladder assembly onto the top surface of the bridge flange, loosen the hanging rope and control the support platform to rotate to a horizontal position. Move the support platform laterally along the bridge to adjust it so that one end of the support platform can be detachably connected to the stop block on the bridge cap beam.

[0029] The top of the ladder assembly is fixedly connected to the top surface of the bridge flange plate, and an anchoring and limiting component is installed at the connection point to anchor the ladder assembly to the bridge flange plate. This completes the installation of the foldable construction platform and allows construction operations to begin.

[0030] The above-described solution of this utility model has at least the following beneficial effects:

[0031] The present invention provides a foldable construction system and method for cast-in-place continuous sections of prefabricated bridges. The foldable construction platform includes a ladder assembly, a support assembly, and a rotating assembly. The top of the ladder assembly is fixedly connected to the top surface of the bridge flange plate. The support assembly is located at the bottom of the ladder assembly, with one end detachably connected to a stop block on the bridge cap beam, and the other end rotatably connected to the bottom of the ladder assembly, allowing the other end to rotate relative to the ladder assembly. The rotating assembly is positioned between the bottom of the ladder assembly and the other end of the support assembly, enabling the support assembly to rotate relative to the ladder assembly. The foldable construction platform and method provided by this invention can improve construction safety and efficiency while reducing construction costs. Attached Figure Description

[0032] Figure 1 This is an unfolded main view of a foldable construction system for a cast-in-place continuous section of a prefabricated bridge, provided in an embodiment of this utility model.

[0033] Figure 2 This is an unfolded side view of a foldable construction system for a cast-in-place continuous section of a prefabricated bridge, provided in an optional embodiment of this utility model.

[0034] Figure 3 This is a schematic diagram of the installation of a foldable construction system for a prefabricated bridge cast-in-place continuous section with a bridge, according to an optional embodiment of this utility model.

[0035] The following are the reference numerals: 1. Ladder assembly; 2. Support assembly; 3. Vertical support rib; 4. Horizontal support rib; 5. First hook; 6. Bridge flange plate; 7. Exposed embedded reinforcement of the crash barrier; 8. Bridge cap beam; 9. Stop block; 10. Rotating shaft; 11. Platform body; 12. Platform frame; 13. Second hook; 14. Hanging rope. Detailed Implementation

[0036] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0037] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0038] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0039] In the following description, to clearly demonstrate the structure and operation of this utility model, various directional terms will be used. However, the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "outer," "inner," "outward," "inward," "upward," and "downward" are based on the orientations or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] See Figures 1 to 3 This utility model proposes a foldable construction system for a prefabricated bridge cast-in-place continuous section, which may include a ladder assembly 1, a support assembly 2, and a rotating assembly. The top of the ladder assembly 1 is fixedly connected to the top surface of the bridge flange plate 6; the support assembly 2 is disposed at the bottom of the ladder assembly 1, one end of the support assembly 2 is detachably connected to a stop block 9 on the bridge cap beam 8, and the other end of the support assembly 2 is rotatably connected to the bottom of the ladder assembly 1, and the other end of the support assembly 2 can rotate relative to the ladder assembly 1; the rotating assembly is disposed between the bottom of the ladder assembly 1 and the other end of the support assembly 2, allowing the support assembly 2 to rotate relative to the ladder assembly 1.

[0042] In this embodiment, the support component 2 serves as a platform supporting construction personnel and materials, and the ladder component 1 is a suspension unit. Its top end is fixedly connected to the bridge flange plate 6, and its bottom end is rotatably connected to the support component 2, so that the support component 2 is located below the bridge deck for easy construction operations. Here, the support component 2 is rotatably connected to the ladder component through a rotating component, allowing the support component 2 to rotate around the ladder component 1, so that the entire support component 2 can be folded or unfolded at a certain angle relative to the ladder component. Here, the lengths of the ladder component 1 and the support component 2 can be set according to the actual size of the bridge under construction.

[0043] The foldable construction platform according to this utility model embodiment is designed to be simple to manufacture, low in cost, and easy to install and dismantle. Furthermore, the ladder component facilitates worker access, and the support component 2 eliminates the need for separate scaffolding during construction, thus improving efficiency and reducing costs. This foldable construction platform also features a folding function, making it easy to carry and highly adaptable, making it widely applicable in various bridge projects, especially suitable for the construction of cast-in-place continuous sections of prefabricated bridges.

[0044] In an optional embodiment of this utility model, both the ladder assembly 1 and the support assembly 2 are made of steel bars or structural steel to ensure the strength of the entire foldable construction platform and thus ensure the safety of construction personnel.

[0045] Continue reading Figures 1 to 3In an optional embodiment of this utility model, the ladder assembly 1 may include two vertical support ribs 3 and multiple horizontal support ribs 4. The two vertical support ribs 3 are arranged in parallel, and the top ends of the two vertical support ribs 3 are fixedly connected to the top surface of the bridge flange plate 6; the multiple horizontal support ribs 4 are evenly distributed between the two vertical support ribs 3.

[0046] In this embodiment, the ladder assembly 1 is fixedly connected by vertical support ribs 3 and multiple horizontal support ribs 4. Two vertical support ribs 3 are arranged in parallel to form the main support structure of the ladder assembly 1; multiple horizontal support ribs 4 are welded and fixed between the two vertical support ribs 3 to form steps for construction workers to step on; here, the multiple horizontal support ribs 4 can be configured as plate-like structures for easy stepping.

[0047] In an optional embodiment of this utility model, a first hook 5 is provided at the top of the two vertical support ribs 3. The first hook 5 can be integrally formed with the top of the vertical support rib 3, or it can be a separate hook piece welded to the top of the vertical support rib 3. When installing the foldable construction platform, a pin component is provided between the first hook 5 and the pre-embedded exposed rib 7 of the crash barrier to anchor the first hook 5 to the pre-embedded exposed rib 7 of the crash barrier, so as to fix the top of the ladder assembly 1 to the bridge flange plate 6, thereby fixing the top of the foldable construction platform.

[0048] Continue reading Figures 1 to 3 In an optional embodiment of this utility model, the support component 2 is a support platform, which may include a platform body 11 and a platform frame. The platform body 11 is a mesh structure used to support construction personnel and construction materials; the platform frame 12 is disposed on both sides of the platform body 11 and fixedly connected to both sides of the platform body 11 respectively, one end of the platform frame 12 is detachably connected to the stop block 9 on the bridge cap beam 8, and the other end of the platform frame 12 is rotatably connected to the bottom end of the ladder component 1.

[0049] In this embodiment, the platform body 11 can be a mesh structure formed by welding multiple longitudinal and transverse steel bars, used to support construction personnel and materials; the platform frame 12 can be a frame structure composed of main reinforcing bars, which is connected to both sides of the platform body 11; here it can be fixed by welding. One end of the platform frame 12 is snapped onto and supported on the stop block 9 on the bridge cap beam 8, and the other end of the platform frame 12 is rotatably connected to the bottom end of the climbing ladder assembly 1 through a rotating component, so that the entire support platform can rotate around the rotating component, and thus unfold or fold relative to the climbing ladder assembly 1.

[0050] Preferably, a second hook 13 is provided at one end of the platform frame 12 for detachable connection with the stop block 9 on the bridge cap beam 8; here, the second hook 13 can be integrally formed with one end of the platform frame 12, or it can be a hook component that is welded and fixed separately; the second hook 13 can also be an obtuse angle hook, used to fasten to the inside of the stop block 9 on the bridge cap beam 8 to restrict the support platform from moving outward, to ensure the stability of the support platform supported on the top surface of the stop block 9, and thus to ensure the stability of the entire foldable construction platform.

[0051] In an optional embodiment of this utility model, a hanging rope 14 is provided at one end of the platform body 11. The rotation angle and position of the platform frame 12 are adjusted by controlling the opening and closing of the hanging rope 14, so that the platform frame 12 can switch between vertical position, horizontal position and middle position.

[0052] In this embodiment, one end of the hanging rope 14 is located at one end of the platform body 11, and the other end of the hanging rope 14 is located at the top of the support component 1. The rotation angle and position of the support platform can be adjusted by controlling the extension and retraction of the hanging rope 14, thereby realizing the flexible conversion and positioning of the support platform in vertical, horizontal, and intermediate positions. By precisely controlling the extension and retraction length and tension of the hanging rope 14, the rotation angle and position of the support platform can be adjusted to ensure that the support platform can be stably and reliably supported on the stop block 9 and remain stable throughout the construction operation, providing a safe and reliable working environment for construction personnel and thus ensuring the safety of construction. Preferably, the hanging rope 14 can be made of high-strength nylon rope.

[0053] In an optional embodiment of this utility model, the rotating assembly may include a first fixing nut, a second fixing nut, and a rotating shaft 10. The first fixing nut is disposed at the bottom end of the ladder assembly 1; the second fixing nut is disposed at the other end of the support assembly 2, and is offset from and opposite to the first fixing nut; the rotating shaft 10 passes through both the first and second fixing nuts.

[0054] In this embodiment, the first fixing nut is fixedly connected to the bottom end of the vertical support rib 3 of the climbing ladder assembly 1; the second fixing nut is fixedly connected to the other end of the support frame 12 in the support assembly 2; both the first fixing nut and the second fixing nut are nuts with internal threads, and the outer periphery of the rotating shaft 10 is provided with an external thread that matches the internal thread, and the rotating shaft 10 is inserted between the first fixing nut and the second fixing nut so that when the hanging rope 14 is loosened or lifted, the support assembly 2 can rotate relative to the climbing ladder assembly 1;

[0055] Here, the first and second fixing nuts can also be replaced by other ring components with similar functions to adapt to different construction environments and material supply conditions.

[0056] In an optional embodiment of this utility model, the above-mentioned foldable construction system for cast-in-place continuous sections of prefabricated bridges may further include an anchoring and limiting component. The anchoring and limiting component is disposed at the connection between the climbing ladder component 1 and the bridge flange plate 6, and is used to anchor the top of the climbing ladder component 1 to the bridge flange plate 6.

[0057] In this embodiment, the anchoring limiting component is anchored to the exposed reinforcing bar 7 embedded in the crash barrier to limit the top of the ladder component 1 and the first hook 5 to the bridge flange plate 6, thereby enhancing the overall stability of the foldable construction platform.

[0058] Here, the anchoring and limiting component consists of transverse pin bars, which can be one or more anchoring bars. These transverse bars are horizontally inserted between the exposed reinforcing bar 7 embedded in the crash barrier and the first hook 5, forming an anchoring pin. This pin transmits the lateral force of the ladder assembly 1 and the first hook 5 to the exposed reinforcing bar 7 embedded in the crash barrier, thus limiting the lateral displacement of the ladder assembly 1 and the first hook 5. The anchoring and limiting component can also be a channel steel, angle steel, or I-beam.

[0059] Here, the material of the anchoring and limiting component is the same as or similar to that of the ladder component 1 and the support component 2, and its strength meets the load requirements borne by the construction platform during use; the length and size of the anchoring and limiting component can be customized according to the thickness of the bridge flange plate 6 and the position of the embedded steel bars to ensure that the anchoring and limiting component can fit tightly between the exposed steel bar 7 of the crash barrier and the first hook 5, and provide sufficient anchoring force.

[0060] Preferably, the anchoring and limiting component is disposed through the top of the first hook 5 of the ladder component 1 to evenly distribute and enhance the anchoring effect of the entire foldable construction platform, thereby improving the stability and safety of the foldable construction platform.

[0061] Here, the anchoring and limiting components are set and connected to the pre-embedded exposed reinforcing bar 7 and the first hook 5 of the crash barrier in the following manner:

[0062] After installing the top hook of the ladder assembly at the pre-embedded exposed reinforcement 7 of the crash barrier on the bridge deck, the transverse reinforcement of the anchoring and limiting component is horizontally inserted between the pre-embedded exposed reinforcement 7 of the crash barrier and the first hook 5 to form an anchoring pin. This transfers the transverse force of the ladder assembly 1 and the first hook 5 to the pre-embedded exposed reinforcement 7 of the crash barrier, thus limiting the transverse displacement of the ladder assembly 1 and the first hook 5. Elastic gaskets or rubber pads are placed between the anchoring and limiting component and the pre-embedded exposed reinforcement 7 and the first hook 5 to reduce vibration and impact, and improve the connection tightness and durability of the anchoring and limiting components.

[0063] Preferably, the anchoring and limiting component can also be connected to the support component 2 by ropes or chains to form a double insurance, further enhancing the stability of the foldable construction platform and preventing accidental rotation or displacement of the foldable construction platform during use.

[0064] The present invention also provides a construction method for a foldable construction system for a prefabricated bridge cast-in-place continuous section based on the above embodiments, comprising the following steps:

[0065] Step 11: Loosen the hanging rope 14 and control the support platform to rotate to a vertical position;

[0066] Step 12: Lift the hanging rope 14 and control the support platform to rotate and lift it to the inside of the climbing ladder assembly 1;

[0067] Step 13: Install the top of the climbing ladder assembly 1 onto the top surface of the bridge flange plate 6, loosen the hanging rope 14 and control the support platform to rotate to a horizontal position, move the support platform laterally along the bridge to adjust it so that one end of the support platform is detachably connected to the stop block 9 on the bridge cap beam 8.

[0068] Step 14: Fix the top of the ladder assembly 1 to the top surface of the bridge flange plate 6, and set the anchoring limit assembly at the connection point so that the ladder assembly 1 is supported and anchored on the bridge flange plate 6. This completes the installation of the foldable construction platform and allows construction work to begin.

[0069] When installing the foldable construction platform, first grasp the first hook 5 at the top of the ladder assembly 1, loosen the hanging rope 14, rotate the support platform to a vertical position, and check the integrity of each part of the device; then lift the hanging rope 14 to rotate and lift the support platform to the inside of the ladder assembly 1, that is, below the first hook 5.

[0070] Furthermore, the first hook 5 at the top of the ladder assembly 1 is accurately installed at the pre-embedded exposed rib 7 of the crash barrier. Then, the hanging rope 14 is slowly lowered to allow the support platform to rotate smoothly to a horizontal position. At the same time, the support platform is moved laterally along the bridge to adjust it so that the second hook 13 at one end of the support platform is accurately installed on the inside of the stop block 9. This ensures that the outer end of the support platform can be stably supported on the top surface of the stop block 9 and that reliable limiting and fixing are achieved through the second hook 13. Furthermore, the first hook 5 is pressed against the exposed part of the pre-embedded exposed rib 7 of the crash barrier and the anchoring limiting component is inserted to make the entire foldable construction platform tightly and firmly anchored to the pre-embedded exposed rib 7 of the crash barrier. This completes the installation of the foldable construction platform.

[0071] Construction workers climb down the ladder assembly 1 from the bridge deck to the support platform, attach safety ropes to the ladder assembly 1, and conduct a comprehensive inspection of the safety and reliability of the foldable construction platform and whether all safety protection measures are in place. After confirming that everything is in order, the construction work can be carried out. After the construction work is completed, each component is dismantled and stored in the reverse order of the installation steps, the construction site is cleaned up, and the device is properly stored for use in the next construction site.

[0072] The foldable construction platform provided by the embodiments of this utility model is simple to manufacture, low in cost, easy to install and dismantle, convenient for construction personnel to get on and off, and lightweight, mobile and flexible with strong adaptability. It can improve construction efficiency and construction safety, and is especially suitable for the construction of cast-in-place continuous sections of prefabricated bridges. It can be widely used in various bridge projects.

[0073] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A foldable construction system for cast-in-place continuous sections of prefabricated bridges, characterized in that, include: A ladder assembly, the top of which is fixedly connected to the top surface of the bridge flange plate; A support component is disposed at the bottom end of the ladder component. One end of the support component is detachably connected to a stop block on the bridge cap beam, and the other end of the support component is rotatably connected to the bottom end of the ladder component, and the other end of the support component can rotate relative to the ladder component. A rotating component is disposed between the bottom end of the climbing assembly and the other end of the support assembly, and the support assembly is allowed to rotate relative to the climbing assembly. as well as An anchoring and limiting component is disposed at the connection between the climbing ladder component and the bridge flange plate, and is used to anchor the top of the climbing ladder component to the bridge flange plate.

2. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 1, characterized in that, The ladder assembly includes: Two vertical support ribs are provided, arranged in parallel, and their top ends are fixedly connected to one side of the bridge crash barrier; and Multiple transverse support ribs are evenly distributed between two vertical support ribs.

3. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 2, characterized in that, The top of each of the two vertical support ribs is provided with a first hook.

4. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 1, characterized in that, The rotating assembly includes: The first fixing nut is disposed at the bottom end of the ladder assembly; A second fixing nut is disposed at the other end of the support assembly, and the second fixing nut is offset from and opposite to the first fixing nut; and A rotating shaft is provided, which passes through the first fixing nut and the second fixing nut.

5. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 1, characterized in that, The supporting component is a supporting platform, which includes: The platform body, which is a mesh structure, is used to support construction personnel and materials; and The platform frame is located on both sides of the platform body and is fixedly connected to both sides of the platform body respectively. One end of the platform frame is detachably connected to the stop block on the bridge cap beam, and the other end of the platform frame is rotatably connected to the bottom end of the ladder assembly.

6. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 5, characterized in that, A second hook is provided at one end of the platform frame to be detachably connected to the stop block on the bridge cap beam.

7. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 5, characterized in that, A hanging rope is provided at one end of the platform frame. The rotation angle and position of the platform frame can be adjusted by controlling the opening and closing of the hanging rope, so that the platform frame can switch between vertical, horizontal and intermediate positions.

8. The foldable construction system for a prefabricated bridge cast-in-place continuous section according to claim 1, characterized in that, Both the ladder assembly and the support assembly are made of steel bars or structural steel.

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