Support for cast-in-place construction of road beam in combined construction section

Abstract

The utility model relates to a support for cast-in-place construction of a combined construction section road beam, and belongs to the technical field of bridge construction, the support for cast-in-place construction of the combined construction section road beam comprises a lifting support, the top of the lifting support is provided with a bottom formwork used for pouring a beam body, and a web formwork and a wing formwork which are located on the two sides of the bottom formwork; the hydraulic driving device is arranged on the lifting bracket and is used for driving the web template and the wing templates so as to enable the web template to be butted with the bottom template; and the folding crawling ladder comprises an inspection ladder rotationally connected with the bottom template, and a driving part which is arranged on the lifting bracket and is used for driving the inspection ladder to swing to descend or ascend. The highway beam can be cast in situ in a way of inversely using the bracket hole by hole, so that the steel structure consumption of the highway beam cast-in-situ construction can be reduced, the construction cost is reduced, and the project is more economical and reasonable; in addition, the support can move as a whole, the dismounting workload of the support can be reduced, the high-altitude dismounting operation time of personnel is shortened, and construction operation is more convenient, efficient and safe.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a support for cast-in-place construction of a highway beam in a combined construction section. Background Art

[0002] For the construction of double-deck bridges with a common upper highway and lower railway, according to the traditional construction method, the highway beam is constructed after the railway box beam is completed, and steel pipe piles and Bailey plate supports are set up on it and formwork is installed, and then construction is carried out hole by hole.

[0003] This construction method requires a huge amount of support, a large workload for installation and removal, and great difficulty in fine-tuning the formwork. It also presents a greater construction safety risk.

[0004] In order to reduce the number of temporary structures such as supports, reduce the workload of on-site installation and disassembly, reduce the difficulty of construction, and minimize the safety risks of construction, it is necessary to design a convenient, efficient, universal, safe and economical cast-in-place construction support for the combined construction section of highway beams. Summary of the invention

[0005] The purpose of this application is to overcome the defects in the existing construction technology and, under the premise of ensuring the safety and reliability of the structure, propose a bracket for cast-in-place construction of highway beams in a combined construction section to meet the requirements of construction efficiency, economy, safety, convenience and versatility.

[0006] The embodiment of the present application provides a support for cast-in-place construction of a highway beam in a combined construction section, comprising:

[0007] A lifting bracket, the top of which is provided with a bottom formwork for pouring the beam body, and a web formwork and a wing formwork located on both sides of the bottom formwork;

[0008] A hydraulic drive device, which is arranged on the lifting bracket and is used to drive the belly template and the wing template so that the belly template butts against the bottom template;

[0009] The folding ladder comprises an inspection ladder rotatably connected to the bottom template, and a driving component arranged on the lifting bracket and used for driving the inspection ladder to swing down or rise.

[0010] In some embodiments, the driving component is a fall chain, one end of the fall chain is connected to the inspection ladder, and the other end of the fall chain is connected to the belly template.

[0011] In some embodiments, the bottom end of the lifting bracket is equipped with running wheels for cooperating with running tracks, and a jack for supporting the lifting bracket.

[0012] In some embodiments, the belly template is provided with a slot for docking with the side end of the bottom template, and the belly template and the wing template are rotatably connected to each other via a hinge.

[0013] In some embodiments, the hydraulic drive device includes a first hydraulic rod and a second hydraulic rod hinged between the belly template and the lifting bracket, and a third hydraulic rod hinged between the wing template and the lifting bracket.

[0014] In some embodiments, a transverse distribution beam is fixed to the top of the lifting bracket, a longitudinal distribution beam is fixed to the top of the transverse distribution beam, and the bottom template is fixed to the top of the longitudinal distribution beam.

[0015] In some embodiments, the lifting bracket includes at least two groups of retractable support columns and a connecting truss connecting the support columns together.

[0016] In some embodiments, the lifting bracket further includes a cushion beam fixedly connected to the bottom end of the supporting column, and the cushion beam is provided with a pushing component for lifting the connecting truss.

[0017] In some embodiments, the supporting column includes an upper column and a lower column that are slidably connected to each other, and a side wall of the upper column is fixedly connected to the connecting truss.

[0018] In some embodiments, the support column further includes a limit pin for fixedly connecting the upper column and the lower column, and the side walls of the upper column and the lower column are provided with a plurality of through holes arranged along the sliding direction and used to cooperate with the limit pin.

[0019] The beneficial effects of the technical solution provided by this application include:

[0020] The embodiment of the present application provides a support for cast-in-place construction of highway beams in a jointly built section. Due to the lifting support, a bottom formwork for casting the beam body, as well as a web formwork and a wing formwork located on both sides of the bottom formwork are provided on the top; a hydraulic drive device is provided on the lifting support, and is used to drive the web formwork and the wing formwork so that the web formwork docks with the bottom formwork; a folding ladder includes an inspection ladder rotatably connected to the bottom formwork, and a driving component is provided on the lifting support and is used to drive the inspection ladder to swing down or up.

[0021] Therefore, the highway beams can be cast in situ by using the bracket of the present application hole by hole, which can reduce the amount of steel structure used in the cast-in-situ construction of highway beams, reduce construction costs, and make the project more economical and reasonable; the bracket of the present application can also be moved as a whole, which can reduce the workload of bracket disassembly and assembly, and reduce the time for personnel to disassemble and assemble at high altitude. Personnel can also go up to the template area through the inspection ladder to work, making construction work more convenient, efficient and safe; the bracket of the present application can adjust the position of the template and the overall lifting and lowering adjustment, which can solve the problem of highway frame piers interfering with the bracket through holes, reduce the construction difficulty, and further improve the construction convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the implementation of the bracket of the embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of another perspective implementation of the bracket of the embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of another state of the bracket of the embodiment of the present application;

[0026] Figure 4 A partial schematic diagram of a cushion beam according to an embodiment of the present application;

[0027] Figure 5 This is a structural cross-sectional view of a cushion beam according to an embodiment of the present application;

[0028] Figure 6 This is a schematic diagram of the structure of the support column of an embodiment of the present application.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Railway pier; 2. Railway beam; 3. Highway frame pier; 4. Highway beam; 5. Column foot structure; 51. Pad beam; 52. Jack; 53. Running wheel; 6. Running track; 7. Support column; 71. Upper column; 72. Lower column; 73. Limit pin; 74. Column head; 8. Horizontal distribution beam; 9. Longitudinal distribution beam; 10. Highway beam construction template; 11. Inspection ladder; 12. Hydraulic drive device; 13. Connection truss; 14. Push component. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] The purpose of this application is to overcome the defects in the existing construction technology and, under the premise of ensuring the safety and reliability of the structure, propose a bracket for cast-in-place construction of highway beams in a combined construction section to meet the requirements of construction efficiency, economy, safety, convenience and versatility.

[0033] See also Figures 1 to 6 As shown, the embodiment of the present application provides a support for cast-in-place construction of a highway beam in a combined construction section, comprising:

[0034] A lifting bracket, the top of which is provided with a bottom formwork for pouring the beam body, and a web formwork and a wing formwork located on both sides of the bottom formwork;

[0035] A hydraulic drive device 12, which is arranged on the lifting bracket and is used to drive the belly template and the wing template so that the belly template is connected to the bottom template;

[0036] The folding ladder comprises an inspection ladder 11 rotatably connected to a bottom template, and a driving component arranged on a lifting bracket and used for driving the inspection ladder 11 to swing down or rise.

[0037] The support for cast-in-place construction of the jointly built section highway beam in the embodiment of the present application is achieved by installing a bottom formwork, a web formwork and a wing formwork on a lifting support. The bottom formwork, the web formwork and the wing formwork can together form a highway beam construction formwork 10, which can then be used to cast the highway beam 4 above the railway beam 2 of the jointly built section.

[0038] Exemplarily, the jointly built section of the bridge utilizes the railway pier 1 to support the railway beam 2, and a highway frame pier 3 for supporting the highway beam 4 is constructed on the railway pier 1. When in use, the lifting bracket is arranged on the top surface of the railway beam 2 of the jointly built section, and the position of the web formwork and the wing formwork is adjusted by the hydraulic drive device 12, so that the web formwork and the wing formwork, together with the bottom formwork, form a casting formwork for the highway beam 4, to cooperate in casting the highway beam 4. After the casting construction of this section is completed, the formwork is controlled to be demolded and adjusted by the lifting bracket to avoid the highway frame pier 3 as a whole, and then the lifting bracket is moved forward longitudinally along the railway beam 2 through the hole, and the above steps are repeated to cast the highway beam 4 at the next hole position.

[0039] That is, the highway beam 4 can be cast in situ by pouring the bracket of the present application hole by hole, which can reduce the amount of steel structure used in the cast-in-situ construction of the highway beam 4, reduce construction costs, and make the project more economical and reasonable; in addition, the bracket of the present application can also be moved as a whole, which can reduce the workload of bracket disassembly and assembly, and reduce the time for personnel to disassemble and assemble at high altitudes. The inspection ladder 11 can also be lowered by the driving component to facilitate personnel to go up to the template area to inspect the template, making the construction operation more convenient, efficient and safe; in addition, the bracket of the present application can also solve the problem of interference between the highway frame pier 3 and the bracket through hole by adjusting the template position and the overall lifting and lowering adjustment, thereby reducing the construction difficulty and further improving the construction convenience.

[0040] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, the driving component of which is a fall chain, one end of which is connected to an inspection ladder 11, and the other end of which is connected to a web formwork.

[0041] The driving component of the embodiment of the present application is a fall chain, one end of which is connected to the inspection ladder 11, and the other end of which is connected to the belly template. Since one end of the inspection ladder 11 is hinged to the bottom template, the inspection ladder 11 can be swung down or up by adjusting the length of the fall chain.

[0042] For example, scaffolds are arranged on both sides of the lifting bracket in this example, and the construction personnel can adjust the length of the fall chain to lower the inspection ladder 11 to a suitable height, and go up to the inspection ladder 11 through the scaffolds. The inspection ladder 11 can be used as a temporary support platform for construction personnel to approach the template, which is convenient for construction personnel to check and work on the template. In some other optional embodiments, the driving component can be an electric or pneumatic telescopic cylinder, which is connected between the inspection ladder 11 and the belly template in a hinged manner.

[0043] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, the bottom end of the lifting support of the support for cast-in-place construction of a jointly built section of highway beams is installed with running wheels 53 for cooperating with running tracks 6, and a jack 52 for supporting the lifting support.

[0044] The bottom end of the lifting bracket in the embodiment of the present application is equipped with running wheels 53 for cooperating with the running track 6, and a jack 52 for supporting the lifting bracket. When the jack 52 is retracted upward, the lifting bracket can be moved using the running wheels 53. When the jack 52 is lowered and pressed against the supporting surface, the lifting bracket can be positioned.

[0045] For example, the lifting bracket in this example is equipped with an electric drive device for driving the running wheels 53 and a hydraulic drive device 12 for controlling the extension and retraction of the jack 52. When the lifting bracket is arranged on the railway beam 2 of the combined construction section, the running wheels 53 at the bottom of the lifting bracket cooperate with the running tracks 6 installed on the top surface of the railway beam 2.

[0046] The electric drive device can drive the running wheel 53 to drive the lifting bracket to move along the running track 6. The two ends of the running track 6 are fixed with limit seats to prevent the running wheel 53 from slipping. During construction, the lifting bracket can be positioned by controlling the jack 52 to press against the top surface of the railway beam 2, which can increase the overall stability of the bracket, that is, the support point is increased during the cast-in-place construction, so that the force on the railway beam 2 is more uniform and reasonable, and the structural safety is improved.

[0047] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, the belly formwork of the support for cast-in-place construction of a jointly built section of highway beams is provided with a slot for docking with the side end of the bottom formwork, and the belly formwork and the wing formwork are rotatably connected to each other by a hinge.

[0048] The web formwork of the embodiment of the present application is provided with a slot for docking with the side end of the bottom formwork. The slot at the end of the web formwork can be driven by the hydraulic drive device 12 to abut against the side end of the bottom formwork to ensure the reliability of subsequent pouring construction.

[0049] In addition, the web formwork and the wing formwork are rotatably connected to each other through hinges, so that the web formwork and the wing formwork can be folded together under the drive of the hydraulic drive device 12 to avoid the highway frame piers 3 on both sides of the railway beam 2 when the lifting bracket moves.

[0050] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a combined-section highway beam, the hydraulic drive device 12 of the support for cast-in-place construction of a combined-section highway beam comprises a first hydraulic rod and a second hydraulic rod hinged between the web formwork and the lifting support, and a third hydraulic rod hinged between the wing formwork and the lifting support.

[0051] The hydraulic drive device 12 of the embodiment of the present application includes a first hydraulic rod and a second hydraulic rod hinged between the belly formwork and the lifting bracket, and a third hydraulic rod hinged between the wing formwork and the lifting bracket. Therefore, the belly formwork can be driven to move by the first hydraulic rod and the second hydraulic rod, and the wing formwork can be driven to move by the third hydraulic rod, thereby adjusting the positions of the belly formwork and the wing formwork to meet construction needs.

[0052] It should be noted that the two ends of the hydraulic rod in this example are installed and connected by hinges, and the hinges are hinges that can lock the angles. For example, bolts are used as hinge axes between the hinge and the hinge seat of the hinge. When the hinge needs to be fixed, the hinge and the hinge seat are fixedly connected by axially locking bolts.

[0053] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, a transverse distribution beam 8 is fixed on the top of the lifting support of the support for cast-in-place construction of a jointly built section of highway beams, a longitudinal distribution beam 9 is fixed on the top of the transverse distribution beam 8, and the bottom formwork is fixed on the top of the longitudinal distribution beam 9.

[0054] The top of the lifting bracket in the embodiment of the present application is welded and fixed with a transverse distribution beam 8 and a longitudinal distribution beam 9. The projections of the transverse distribution beam 8 and the longitudinal distribution beam 9 in the height direction are perpendicular to each other. During installation, the bottom formwork is welded to the top of the longitudinal distribution beam 9. The transverse distribution beam 8 and the longitudinal distribution beam 9 cooperate with each other to stably support the bottom formwork, thereby ensuring the load-bearing stability of the bottom formwork during casting construction.

[0055] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, the lifting support of which includes at least two groups of retractable support columns 7 and a connecting truss 13 connecting the support columns 7 together.

[0056] The lifting bracket of the embodiment of the present application includes at least two groups of retractable support columns 7 and a connecting truss 13 connecting the support columns 7, so that the support columns 7 can be raised and lowered synchronously. Specifically, the two groups of support columns 7 are fixed at the four corners of the connecting truss 13, thereby achieving stable support for the bottom template at the top.

[0057] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, the lifting support of which also includes a cushion beam 51 fixedly connected to the bottom end of the supporting column 7, and a pushing component 14 for lifting the connecting truss 13 is provided on the cushion beam 51.

[0058] The support column 7 of the lifting bracket of the embodiment of the present application is fixed on the cushion beam 51, and the cushion beam 51 is convenient for installing the jacking component 14 for lifting the connecting truss 13. In this example, the lifting bracket includes two cushion beams 51, and the top surfaces of the two cushion beams 51 are welded and fixed with two support columns 7. The four support columns 7 are fixed together through the connecting truss 13, and the jacking component 14 is fixed between the connecting truss 13 and the cushion beam 51. For example, the jacking component 14 can be a hydraulic rod, which can drive the connecting truss 13 to rise and fall to achieve the synchronous extension and retraction of the four support columns 7.

[0059] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a jointly built section of highway beams, the support column 7 of the support for cast-in-place construction of a jointly built section of highway beams comprises an upper column 71 and a lower column 72 slidably connected to each other, and the side wall of the upper column 71 is fixedly connected to the connecting truss 13.

[0060] The supporting column 7 of the embodiment of the present application includes an upper column 71 and a lower column 72 which are slidably connected to each other, and the side wall of the upper column 71 is welded and fixed to the connecting truss 13. Specifically, the upper column 71 and the lower column 72 in this example are both hollow structures, and the outer wall of the upper column 71 and the inner wall of the lower column 72 are slidably adapted to each other.

[0061] The bottom end of the lower column 72 is welded and fixed on the cushion beam 51, and the running wheels 53 and the jack 52 are installed at the bottom of the cushion beam 51. The cushion beam 51, the jack 52 and the running wheels 53 together constitute the column foot structure 5 of the bracket. The top of the upper column 71 is welded with a closed opening column head 74, and the top surface of the column head 74 is welded and fixed to the bottom surface of the transverse distribution beam 8.

[0062] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a support for cast-in-place construction of a highway beam of a jointly built section. The supporting column 7 of the support for cast-in-place construction of a highway beam of a jointly built section also includes a limit pin 73 for fixing an upper column 71 and a lower column 72. The side walls of the upper column 71 and the lower column 72 are provided with a plurality of through holes arranged along the sliding direction and used to cooperate with the limit pin 73.

[0063] The support column 7 of the embodiment of the present application also includes a detachable limit pin 73. A plurality of through holes arranged along the sliding direction are opened on the side walls of the upper column 71 and the lower column 72. When the pushing component 14 drives the connecting truss 13 to rise or fall to a suitable height, the through holes at corresponding positions on the upper column 71 and the lower column 72 overlap. By inserting the limit pin 73 at the through holes at the overlapping positions, the upper column 71 and the lower column 72 can be relatively fixed in position to bear weight.

[0064] Exemplarily, the construction operation of the support of the present application includes the following steps:

[0065] S1. When constructing the railway beam 2, the embedded parts corresponding to the position of the running track 6 are constructed in advance to provide a connection point for the subsequent fixing of the running track 6.

[0066] S2, processing the running wheel 53, the jack 52 and other components with the cushion beam 51 into a whole, and then hoisting them to the top surface of the railway beam 2 and installing them in place;

[0067] S3. According to the required erection height of the combined construction section, the height of the support column 7 is adjusted to the ground, and a single set of brackets is formed by connecting the trusses 13. The single set of brackets is then hoisted to the railway bridge deck and welded to the cushion beam 51 to form a whole. Finally, the jacking component 14 is installed.

[0068] S4. Lift the transverse distribution beam 8, longitudinal distribution beam 9, casting formwork and other components in blocks and sections in turn. After pre-assembly between sections, carry out connection construction between sections. After the inspection ladder 11 and hydraulic drive device 12 are installed at the corresponding positions on the ground, they can be hoisted.

[0069] S5. Complete the work of fine-tuning the support elevation and pre-stressing, and carry out the cast-in-place construction of the highway cast-in-place beams.

[0070] S6. After the cast-in-place construction of the highway beam 4 is completed, the jack 52 is first used to drop the mold and demould (at this time, the jack 52 is still supporting the force, and the running wheel 53 has not yet been transferred to bear the force), and then the push component 14 is used to bear the force to remove the inter-column limit pin 73;

[0071] After the disassembly is completed, the support is lowered as a whole through the pushing component 14, the single set of inspection ladder 11 is lowered, and the hydraulic drive device 12 is operated synchronously to fold the construction template to ensure that the top surface elevation of the support is at least 0.5m lower than the bottom of the crossbeam of the highway frame pier 3, and the distance between the outermost edge of the support and the inner edge of the highway frame pier 3 must not be less than 0.3m.

[0072] S7. After the whole hole bracket is split into multiple sets of independent brackets and the corresponding wings are folded, the brackets are moved forward one by one through the hole in units of a single set of brackets, and arrive at the designated position on the two sides of the next hole railway beam.

[0073] S8. After all sets of brackets are moved forward to their positions, the inter-section connection structures are reconnected, the template is deployed and the brackets are supported in place by the hydraulic drive device 12, the inter-column limit pins 73 are installed, and the elevation fine adjustment and pre-stressing are completed to start the second hole highway beam 4 body casting.

[0074] S9. Repeat the above steps until the cast-in-place construction of the highway beam 4 is completed. After the template is retracted and folded at the last hole position and the bracket is lowered, the construction bracket is hoisted and removed from top to bottom in sequence, and then used to continue the operation at other work sites. The operation steps are the same as above.

[0075] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0076] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0077] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A bracket for cast-in-place construction of highway beams in a combined construction section, characterized in that: include: A lifting bracket, the top of which is provided with a bottom formwork for pouring the beam body, and a web formwork and a wing formwork located on both sides of the bottom formwork; A hydraulic drive device (12), which is arranged on the lifting bracket and is used to drive the belly template and the wing template so that the belly template butts against the bottom template; A folding ladder comprises an inspection ladder (11) rotatably connected to the bottom template, and a driving component arranged on the lifting bracket and used to drive the inspection ladder (11) to swing down or rise.

2. The support for cast-in-place construction of a highway beam in a combined construction section as claimed in claim 1, characterized in that: The driving component is a fall chain, one end of the fall chain is connected to the inspection ladder (11), and the other end of the fall chain is connected to the belly template.

3. The support for cast-in-place construction of highway beams for joint construction as claimed in claim 1, characterized in that: The bottom end of the lifting bracket is provided with a running wheel (53) for cooperating with a running track (6), and a jack (52) for supporting the lifting bracket.

4. The support for cast-in-place construction of a highway beam in a combined construction section as claimed in claim 1, characterized in that: The belly template is provided with a clamping groove for docking with the side end of the bottom template, and the belly template and the wing template are rotatably connected to each other through a hinge.

5. The support for cast-in-place construction of highway beams for combined construction as claimed in claim 1, characterized in that: The hydraulic drive device (12) comprises a first hydraulic rod and a second hydraulic rod hinged between the belly template and the lifting bracket, and a third hydraulic rod hinged between the wing template and the lifting bracket.

6. The support for cast-in-place construction of highway beams in a combined construction section as claimed in claim 1, characterized in that: A transverse distribution beam (8) is fixed on the top of the lifting bracket, a longitudinal distribution beam (9) is fixed on the top of the transverse distribution beam (8), and the bottom template is fixed on the top of the longitudinal distribution beam (9).

7. The support for cast-in-place construction of a highway beam in a combined construction section as claimed in claim 1, characterized in that: The lifting support comprises at least two groups of telescopic supporting columns (7) and a connecting truss (13) connecting the supporting columns (7) together.

8. The support for cast-in-place construction of a highway beam in a combined construction section as claimed in claim 7, characterized in that: The lifting bracket also includes a cushion beam (51) fixedly connected to the bottom end of the supporting column (7), and a pushing component (14) for lifting the connecting truss (13) is provided on the cushion beam (51).

9. The support for cast-in-place construction of a highway beam in a combined construction section as claimed in claim 8, characterized in that: The supporting column (7) comprises an upper column (71) and a lower column (72) which are slidably connected to each other, and the side wall of the upper column (71) is fixedly connected to the connecting truss (13).

10. The support for cast-in-place construction of a highway beam in a combined construction section as claimed in claim 9, characterized in that: The supporting column (7) further comprises a limiting pin (73) for fixing the upper column (71) and the lower column (72) in connection, and the side walls of the upper column (71) and the lower column (72) are provided with a plurality of through holes arranged along the sliding direction and used to cooperate with the limiting pin (73).

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