A method for early removal of formwork for high-speed railway platform canopies

Abstract

This application relates to a method for early removal of formwork for high-speed railway platform canopies, comprising: arranging several auxiliary support systems in the first pouring segment; arranging canopy formwork in the first pouring segment; pouring the first pouring segment; after the concrete of the first pouring segment has cured to the first strength, moving the canopy formwork downwards, and then folding the drip edge formwork and beam bottom formwork so that the lateral dimension of the folded canopy formwork is smaller than the distance between the first and second auxiliary supports; the first strength is less than 100%; moving the canopy formwork longitudinally to the next pouring segment and erecting formwork, and arranging auxiliary support systems in the next pouring segment; performing the pouring operation of the next pouring segment; and after the concrete of the first pouring segment has cured to 100% strength, removing the auxiliary support systems. This invention enables early removal of canopy formwork, overall transfer of canopy formwork, reduced curing waiting time, and improved construction efficiency.

Description

Technical Field

[0001] This application relates to the field of platform canopy construction technology, and in particular to a method for early formwork removal construction of high-speed railway platform canopies. Background Technology

[0002] With the rapid development of China's high-speed rail, high-speed rail stations have sprung up like mushrooms after rain, with small and medium-sized stations becoming increasingly common. Platform canopies, serving as shelters for passengers getting on and off trains, are an essential and important architectural feature of high-speed rail stations.

[0003] In the traditional construction of platform canopies, the pouring is usually carried out in sections, and the formwork system is composed of wooden joists and wooden formwork. After the pouring is completed, all the formwork can only be removed at the same time after the concrete structure strength reaches 100%. This results in an excessively long turnover cycle of the formwork system, which affects the overall construction efficiency of the platform canopy. Summary of the Invention

[0004] Therefore, it is necessary to provide a method for early removal of formwork for high-speed railway platform canopies, and the specific technical solution is as follows.

[0005] A method for early removal construction of a high-speed railway platform canopy, the canopy comprising a beam bottom portion extending laterally, a cantilever portion, and a drip edge portion; the early removal construction method includes the following steps:

[0006] The high-speed railway platform canopy is divided into multiple pouring sections along the longitudinal direction.

[0007] An auxiliary support system is arranged in the first pouring segment. The auxiliary support system includes a first auxiliary support and a second auxiliary support. The first auxiliary support is arranged below the drip edge and the second auxiliary support is arranged below the bottom of the beam.

[0008] The canopy formwork is arranged in the first pouring segment; the canopy formwork includes the drip edge formwork, the cantilever formwork and the beam bottom formwork, which are hinged in sequence;

[0009] Pouring the first pouring segment;

[0010] After the concrete of the first pouring segment has cured to the first strength, the canopy formwork is moved downwards, and the drip edge formwork and beam bottom formwork are folded up so that the lateral dimension of the folded canopy formwork is smaller than the distance between the first auxiliary support and the second auxiliary support; the first strength is less than 100%;

[0011] The entire canopy formwork is moved longitudinally to the next pouring segment and the formwork is erected. An auxiliary support system is then set up in the next pouring segment for pouring operations.

[0012] After the concrete of the first poured segment has cured to 100% strength, the auxiliary support system is removed and the segment is transferred to other unpoured segments for use.

[0013] Repeat the above process to complete the pouring operation of each pouring segment in sequence.

[0014] Furthermore, a truss is provided below the canopy template. The truss includes a main truss and an auxiliary truss. The main truss is connected to and supports the cantilever template, and the auxiliary truss is connected to and supports the drip edge template. The auxiliary truss is rotatably hinged to the main truss about the vertical direction.

[0015] When folding up the drip edge formwork, the auxiliary truss is rotated around the vertical direction to fold up the auxiliary truss, so that the lateral dimension of the folded truss is smaller than the distance between the first auxiliary support and the second auxiliary support.

[0016] When moving the canopy formwork longitudinally, the truss moves together with the canopy formwork to the next pouring segment.

[0017] Furthermore, a support member is provided below the drip edge template. The end of the support member away from the drip edge template is connected to a guide component. The guide component includes two guide plates arranged opposite each other. One end of the guide plate is connected to the support member, and the other end extends outward from the end face of the support member and bends, so that the distance between the two guide plates gradually increases.

[0018] When setting up the formwork for the next pouring segment, the drip edge formwork is deployed at the same time as the auxiliary truss is deployed. The rotation angle of the auxiliary truss is restricted by the guide plate until the bottom of the support member abuts against the auxiliary truss.

[0019] Furthermore, the auxiliary truss includes a first channel steel extending in the vertical direction, and the main truss includes an end face web steel pipe extending in the vertical direction. The first channel steel is hinged to the end face web steel pipe. The first channel steel is provided with a first locking hole, and the end face web steel pipe is provided with a second locking hole.

[0020] After the bottom of the support abuts against the auxiliary truss, the locking bolts are connected to the nuts through the first and second locking holes to lock the end face web steel pipe and the first channel steel.

[0021] Furthermore, the beam bottom formwork includes a first sub-formwork and a second sub-formwork. The first sub-formwork is hinged to the cantilever formwork, and the second sub-formwork is hinged to the first sub-formwork. The first sub-formwork and the second sub-formwork are also detachably connected by connecting bolts.

[0022] When stacking the bottom formwork of the beam, first flip the bottom formwork downward as a whole so that the first sub-formwork does not exceed the second auxiliary support. Then remove the connecting bolts between the first and second sub-formworks so that the second sub-formwork automatically flips downward under its own weight until the second sub-formwork does not exceed the second auxiliary support.

[0023] Furthermore, the first strength is 75%.

[0024] Furthermore, a first drive arm connects the drip edge template and the cantilever template, and the first drive arm drives the drip edge template to rotate; a second drive arm connects the bottom beam template and the cantilever template, and the second drive arm drives the bottom beam template to rotate.

[0025] Furthermore, the auxiliary truss folds up as the drip edge template is folded up, and unfolds as the drip edge template is unfolded.

[0026] Beneficial effects: The early removal construction method for high-speed railway platform canopies provided by this invention uses canopy formwork in conjunction with an auxiliary support system to pour the high-speed railway platform canopy in multiple pouring segments; without waiting for the poured concrete to cure to 100% of the design strength, the canopy formwork can be folded up and transported as a whole between different pouring segments, and the auxiliary support system supports the poured segments until the concrete cures to 100% strength, realizing early removal construction of the canopy formwork, overall transportation of the canopy formwork, reducing waiting time, and thus improving construction efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a flowchart illustrating the construction method.

[0029] Figure 2 A schematic diagram of the cross-section after pouring a certain segment;

[0030] Figure 3 A schematic diagram of the cross-section after the canopy formwork is transferred to the next pouring segment;

[0031] Figure 4 A schematic diagram illustrating the support provided for the poured concrete.

[0032] Figure 5 A schematic diagram of the auxiliary support structure;

[0033] Figure 6 This is a schematic diagram of the canopy formwork and truss.

[0034] Figure 7 This is a schematic diagram showing the unfolded formwork of a single canopy.

[0035] Figure 8 One of the schematic diagrams for the stacking of a single canopy template;

[0036] Figure 9 The second schematic diagram of the stacking of a single canopy template;

[0037] Figure 10 This is a schematic diagram of the truss deployment;

[0038] Figure 11 This is a schematic diagram of truss stacking;

[0039] Figure 12 This is a schematic diagram of a drip edge template;

[0040] Figure 13 This is a schematic diagram of the linkage structure.

[0041] Explanation of reference numerals in the attached drawings: 100, drip edge; 200, cantilever section; 300, bottom of beam;

[0042] 1. First auxiliary support; 2. Second auxiliary support; 3. Drip edge formwork; 4. Cantilever formwork; 5. Beam bottom formwork; 6. Main truss; 7. Auxiliary truss; 8. Support components; 9. Linkage structure;

[0043] 11. First support rod; 12. First auxiliary template;

[0044] 21. Second support rod; 22. Second auxiliary template;

[0045] 41. First drive arm; 42. Second drive arm;

[0046] 51. First sub-formwork; 52. Second sub-formwork; 53. Connecting bolts;

[0047] 61. End face steel pipe; 62. Second locking hole; 63. Upper chord;

[0048] 71. First channel steel; 72. First locking hole;

[0049] 81. Guide plate;

[0050] 91. First thread; 92. First mounting rod; 93. First gear; 94. First sleeve; 95. Second thread; 96. Second mounting rod; 97. Second gear; 98. Second sleeve; 99. Hinge. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0057] Example

[0058] This embodiment provides a method for early formwork removal construction of high-speed railway platform canopies, referring to... Figure 2 As shown, the high-speed railway platform canopy includes a beam base 300 extending laterally, a cantilevered portion 200, and a drip edge portion 100 on each side, forming a symmetrical structure. Specifically, referring to... Figure 1 As shown, the early demolition construction method includes the following steps:

[0059] S1. Divide the high-speed railway platform canopy into multiple pouring segments along the longitudinal direction; during construction, adopt a continuous pouring method and construct each pouring segment in sequence.

[0060] S2. Arrange an auxiliary support system in the first pouring segment, referring to... Figure 2 As shown, the auxiliary support system includes a first auxiliary support 1 and a second auxiliary support 2. The first auxiliary support 1 is arranged below the drip edge portion 100, and the second auxiliary support 2 is arranged below the bottom portion 300 of the beam. The drip edge portion 100 and the bottom portion 300 of the beam are both structural weak points, which are prone to settlement.

[0061] S3. Arrange the canopy template in the first pouring segment. The canopy template includes a drip edge template 3, a cantilever template 4 and a beam bottom template 5 that are hinged in sequence, corresponding to the drip edge part 100, the cantilever part 200 and the beam bottom part 300 of the platform canopy, respectively.

[0062] S4. Pour the first pouring segment; refer to the following for the post-pouring state. Figure 2 As shown;

[0063] S5. After the concrete of the first poured segment has cured to its first strength, move the canopy formwork downwards to demold it, ensuring that the top height of the drip edge formwork 3 is less than the bottom height of the already poured drip edge portion 100. Then, fold up the drip edge formwork 3 and the beam bottom formwork 5, ensuring that the lateral dimension of the folded canopy formwork is less than the distance between the first auxiliary support 1 and the second auxiliary support 2. Refer to the state of the folded canopy formwork. Figure 9As shown, the folded canopy formwork can be transported as a whole, reducing the amount of construction work and the time required, and improving construction efficiency.

[0064] S6. Move the canopy formwork longitudinally to the next pouring segment and erect the formwork. Then, install an auxiliary support system in the next pouring segment and proceed with the pouring operation. Refer to the following for the state after moving the canopy formwork: Figure 3 and Figure 4 As shown, in Figure 4 The canopy formwork, which has been moved to the next pouring segment, is hidden in the middle; since the first strength is less than 100% of the concrete strength, the canopy formwork does not need to wait for the concrete to cure to 100% strength before it can be transferred to the next pouring segment for construction, reducing waiting time and improving construction efficiency;

[0065] S7. After the concrete of the first poured segment has cured to 100% strength, remove the auxiliary support system and transfer it to other unpoured segments for use;

[0066] S8. Repeat the above process to complete the pouring operation of each pouring segment in sequence.

[0067] This embodiment provides a method for early formwork removal construction of high-speed railway platform canopies. The method utilizes a canopy formwork and an auxiliary support system to pour the canopy in multiple segments. Without waiting for the concrete to cure to 100% of its design strength, the canopy formwork can be folded up and transported as a whole between different pouring segments. The auxiliary support system supports the poured segments until the concrete cures to 100% strength. This allows for early formwork removal and overall formwork transport, reducing waiting time and improving construction efficiency.

[0068] Specifically, refer to Figure 5 As shown, the first auxiliary support 1 includes a first strut 11 and a first auxiliary template 12. The first strut 11 is connected to the first auxiliary template 12, which is located below the drip edge portion 100. The side of the first auxiliary template 12 is connected to the drip edge template 3, forming a smooth casting template below the drip edge portion 100. The second auxiliary support 2 includes a second strut 21 and a second auxiliary template 22. The second strut 21 is connected to the second auxiliary template 22, which is located below the beam bottom portion 300. The side of the second auxiliary template 22 is connected to the beam bottom template 5, forming a smooth casting template below the beam bottom template 5.

[0069] Specifically, refer to Figure 6As shown, a truss is also provided below the canopy template. The truss includes a main truss 6 and an auxiliary truss 7. The main truss 6 is connected to and supports the cantilever template 4, and the auxiliary truss 7 is connected to and supports the drip edge template 3. The auxiliary truss 7 is hinged to the main truss 6 in a rotatable manner around the vertical direction. When the drip edge template 3 is folded up, the auxiliary truss 7 is folded up simultaneously, so that the auxiliary truss 7 rotates in the vertical direction and folds up with the main truss 6. This makes the lateral dimension of the folded truss smaller than the distance between the first auxiliary support 1 and the second auxiliary support 2. A schematic diagram of the folded truss is shown in the figure below. Figure 11 As shown. When moving the canopy formwork longitudinally, the folded truss is moved together with the canopy formwork to the next pouring segment, achieving overall transfer and further reducing construction volume and time, thus improving construction efficiency. Before pouring the next segment, the canopy formwork and truss are unfolded during the canopy formwork erection. A schematic diagram of the unfolded truss is shown below. Figure 10 As shown.

[0070] Reference Figure 12 As shown, a support member 8 is provided below the drip edge template 3. A guide component is connected to the end of the support member 8 furthest from the drip edge template 3. The guide component includes two opposing guide plates 81. One end of each guide plate 81 is connected to the support member 8, and the other end extends outward from the end face of the support member 8 and bends, gradually increasing the distance between the two guide plates 81. Before pouring the next pouring stage, during formwork erection, the auxiliary truss 7 is deployed simultaneously with the drip edge template 3. During deployment, the guide component and the auxiliary truss 7 gradually align, with the guide plate 81 limiting the rotation angle of the auxiliary truss 7 until the bottom of the support member 8 abuts against the auxiliary truss 7, thus compensating for minor misalignments between the drip edge template 3 and the truss.

[0071] Specifically, refer to Figure 11 As shown, the auxiliary truss 7 includes a first channel steel 71 extending in the vertical direction, and the main truss 6 includes an end face web steel pipe 61 extending in the vertical direction. The first channel steel 71 is hinged to the end face web steel pipe 61. The first channel steel 71 is provided with a first locking hole 72, and the end face web steel pipe 61 is provided with a second locking hole 62.

[0072] When the bottom of the support member 8 abuts against the auxiliary truss 7, the slight misalignment between the drip edge template 3 and the truss has been compensated. The locking bolts are then connected to the nuts through the first locking hole 72 and the second locking hole 62 to lock the end face web steel pipe 61 and the first channel steel 71, thereby improving the stability of the truss after it is deployed and ensuring reliable support for the canopy template.

[0073] As a further improvement to this embodiment, the main truss 6 includes an upper chord 63, which is a steel pipe structure, as shown in the reference. Figure 13As shown in the diagram, a portion of the tube wall of the upper chord 63 is hidden. The upper chord 63 contains a linkage structure 9, which includes a first transmission structure and a second transmission structure. The first transmission structure includes a first wire 91, a first mounting rod 92, and a first gear 93. The first mounting rod 92 is mounted on the upper chord 63. Specifically, the first mounting rod 92 passes vertically through the upper chord 63 and is locked in place by a nut. The first gear 93 is connected to a first sleeve 94, which is rotatably connected to the first mounting rod 92. The first end of the first wire 91 is connected to the drip edge template 3. Specifically, the first wire 91 is fixed to a first transmission bolt, which is fixed to the keel of the drip edge template 3. The second end of the first wire 91 is connected to the first sleeve 94 and wound around it. The second transmission structure includes a second wire 95, a second mounting rod 96, and a second gear 97. The second mounting rod 96 is also mounted on the upper chord 63. Similarly, the second mounting rod 96 passes vertically through the upper chord 63 and is locked by a lock nut. The second gear 97 is connected to the second sleeve 98, which is rotatably fitted onto the second mounting rod 96. The auxiliary truss 7 and the main truss 6 are hinged together by a hinge 99. The first end of the second wire 95 is connected to the pivot of the hinge 99 and wound around the pivot, while the second end is connected to the second sleeve 98 and wound around the second sleeve 98. The first gear 93 meshes with the second gear 97.

[0074] When the drip edge template 3 is folded up, it flips upwards, pulling the first thread 91, causing the first gear 93 to rotate, which in turn drives the second gear 97 to rotate. The rotation of the second gear 97 drives the second thread 95, causing the hinge 99 to rotate, thus allowing the auxiliary truss 7 to fold up along with the drip edge. To match the moving distance of the drip edge template 3 with the rotation angle of the hinge 99, the gear ratio of the first gear 93 and the second gear 97 can be adjusted.

[0075] In this embodiment, the hinge 99 is a torsion hinge 99, that is, a torsion spring is provided on the pivot of the hinge 99, so that the hinge 99 has the torque to drive the auxiliary truss 7 to unfold. When the drip edge template 3 is unfolded, no tension is applied to the first thread 91, so that the hinge 99 drives the auxiliary truss 7 to unfold along with the drip edge template 3 under the action of torque.

[0076] Specifically, refer to Figure 7-9As shown, the beam bottom formwork 5 includes a first sub-formwork 51 and a second sub-formwork 52. The first sub-formwork 51 is hinged to the cantilever formwork 4, and the second sub-formwork 52 is hinged to the first sub-formwork 51. The first sub-formwork 51 and the second sub-formwork 52 are also detachably connected by connecting bolts 53. When stacking the beam bottom formwork 5, the entire beam bottom formwork 5 is first flipped downwards so that the first sub-formwork 51 does not exceed the second auxiliary support 2, as shown in the diagram. Figure 8 As shown; then remove the connecting bolts 53 between the first sub-formwork 51 and the second sub-formwork 52, so that the second sub-formwork 52 automatically flips downward under its own weight until the second sub-formwork 52 does not exceed the second auxiliary support 2, and its state is as shown. Figure 9 As shown; the process is reversed when unfolding the bottom formwork 5 of the beam.

[0077] Specifically, refer to Figure 7 As shown, a first drive arm 41 connects the drip edge template 3 and the cantilever template 4, driving the drip edge template 3 to rotate; a second drive arm 42 connects the beam bottom template 5 and the cantilever template 4, driving the beam bottom template 5 to rotate. When the drip edge template 3 is folded up, the first drive arm 41 drives the drip edge to fold towards the cantilever template 4 and rotate, while the auxiliary truss 7 is folded up under the action of the linkage structure 9; when the beam bottom template 5 is folded up, the second drive arm 42 first drives the beam bottom template 5 to fold towards the cantilever template 4, and then the connecting bolts 53 are removed so that the second sub-template 52 rotates downward under its own weight, so that the entire beam bottom template 5 will not exceed the second auxiliary support 2.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for early formwork removal construction of a high-speed railway platform canopy, wherein the high-speed railway platform canopy includes a beam bottom portion extending in a transverse direction, a cantilever portion, and a drip edge portion; characterized in that, The early stripping formwork construction method includes the following steps: The high-speed railway platform canopy is divided into multiple pouring sections along the longitudinal direction. An auxiliary support system is arranged in the first pouring segment. The auxiliary support system includes a first auxiliary support and a second auxiliary support. The first auxiliary support is arranged below the drip edge and the second auxiliary support is arranged below the bottom of the beam. The canopy formwork is arranged in the first pouring segment; the canopy formwork includes the drip edge formwork, the cantilever formwork and the beam bottom formwork, which are hinged in sequence; Pouring the first pouring segment; After the concrete of the first poured segment has cured to its first strength, the canopy formwork is moved downwards, and then the drip edge formwork and beam bottom formwork are folded up, so that the lateral dimension of the folded canopy formwork is smaller than the distance between the first auxiliary support and the second auxiliary support; the first strength is less than 100%; The entire canopy formwork is moved longitudinally to the next pouring segment and the formwork is erected. An auxiliary support system is then set up in the next pouring segment for pouring operations. After the concrete of the first poured segment has cured to 100% strength, the auxiliary support system is removed and transferred to other unpoured segments for use; Repeat the above process to complete the pouring operation of each pouring segment in sequence; A truss is also provided below the canopy template. The truss includes a main truss and an auxiliary truss. The main truss is connected to and supports the cantilever template. The auxiliary truss is connected to and supports the drip edge template. The auxiliary truss is hinged to the main truss in a rotatable manner around the vertical direction. When folding up the drip edge formwork, the auxiliary truss is rotated around the vertical direction to fold up the auxiliary truss, so that the lateral dimension of the folded truss is smaller than the distance between the first auxiliary support and the second auxiliary support. When moving the canopy formwork longitudinally, the truss moves together with the canopy formwork to the next pouring segment; The main truss includes an upper chord, which is a steel pipe structure. The upper chord contains a linkage structure, which includes a first transmission structure and a second transmission structure. The first transmission structure includes a first wire, a first mounting rod, and a first gear. The first mounting rod is installed on the upper chord, passing vertically through it and locked with a nut. The first gear is connected to a first sleeve, which is rotatably connected to the first mounting rod. The first end of the first wire is connected to the drip edge template, and the first wire is fixed to a first transmission bolt. On the keel of the drip edge formwork; the second end of the first wire is connected to the first sleeve and wound around the first sleeve; the second transmission structure includes a second wire, a second mounting rod, and a second gear; the second mounting rod is also installed on the upper chord, and the second mounting rod passes through the upper chord in the vertical direction and is locked by a lock nut; the second gear is connected to the second sleeve, and the second sleeve is rotatably sleeved on the second mounting rod; the auxiliary truss is hinged to the main truss, the first end of the second wire is connected to the hinge shaft and wound around the shaft, and the second end is connected to the second sleeve and wound around the second sleeve; the first gear meshes with the second gear; When the drip edge template is folded up, the drip edge template flips upward and pulls the first thread, causing the first gear to rotate and drive the second gear to rotate. The rotation of the second gear drives the second thread, causing the hinge to rotate, thereby causing the auxiliary truss to fold up along with the drip edge.

2. The method for early removal of formwork for high-speed railway platform canopies according to claim 1, characterized in that, A support member is provided below the drip edge template. A guide component is connected to the end of the support member away from the drip edge template. The guide component includes two guide plates arranged opposite each other. One end of the guide plate is connected to the support member, and the other end extends outward from the end face of the support member and bends, so that the distance between the two guide plates gradually increases. When setting up the formwork for the next pouring segment, the drip edge formwork is deployed at the same time as the auxiliary truss is deployed. The rotation angle of the auxiliary truss is restricted by the guide plate until the bottom of the support member abuts against the auxiliary truss.

3. A method for early removal of formwork for high-speed railway platform canopies according to claim 2, characterized in that, The auxiliary truss includes a first channel steel extending in a vertical direction, and the main truss includes an end face web steel pipe extending in a vertical direction. The first channel steel is hinged to the end face web steel pipe. The first channel steel is provided with a first locking hole, and the end face web steel pipe is provided with a second locking hole. After the bottom of the support abuts against the auxiliary truss, the locking bolts are connected to the nuts through the first and second locking holes to lock the end face web steel pipe and the first channel steel.

4. The method for early removal of formwork for high-speed railway platform canopies according to claim 1, characterized in that, The beam bottom formwork includes a first sub-formwork and a second sub-formwork. The first sub-formwork is hinged to the cantilever formwork, and the second sub-formwork is hinged to the first sub-formwork. The first sub-formwork and the second sub-formwork are also detachably connected by connecting bolts. When stacking the bottom formwork of the beam, first flip the bottom formwork downward as a whole so that the first sub-formwork does not exceed the second auxiliary support. Then remove the connecting bolts between the first and second sub-formworks so that the second sub-formwork automatically flips downward under its own weight until the second sub-formwork does not exceed the second auxiliary support.

5. A method for early removal of formwork for high-speed railway platform canopies according to claim 1, characterized in that, The first strength is 75%.

6. A method for early removal of formwork for high-speed railway platform canopies according to claim 1, characterized in that, A first drive arm connects the drip edge formwork and the cantilever formwork, and the first drive arm drives the drip edge formwork to rotate; a second drive arm connects the bottom beam formwork and the cantilever formwork, and the second drive arm drives the bottom beam formwork to rotate.

7. A method for early removal of formwork for high-speed railway platform canopies according to claim 6, characterized in that, The auxiliary truss folds up as the drip edge template is folded up, and unfolds as the drip edge template is unfolded.

Images