Intelligent construction trolley construction method for station canopy

Abstract

The present application relates to high-speed railway station concrete canopy construction technology field, and disclose a kind of platform canopy intelligent construction trolley construction method, comprising the following steps: S1, according to platform canopy structure Reasonably arrange trolley and form, according to the load-bearing structure column of canopy structure, the beam and board pouring construction of canopy is carried out, trolley and form assembly and combination work are carried out in situ;S2, canopy construction trolley adjustment positioning;S3, by hydraulic jacking structure control open canopy folding steel formwork, and open formwork truss outside folding structure, adjust fixed and check the corresponding position size of formwork;S4, adjust trolley on landing support mechanism, let trolley bridge system off the ground.The platform canopy intelligent construction trolley construction method solves the numerous problems of traditional platform concrete canopy full-support scaffold+scattered formwork construction process, for example, the safety of full-support high formwork, the turnover of formwork material, poor construction site environment.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed railway station concrete canopy construction, and specifically to a platform canopy intelligent construction trolley construction method. Background Art

[0002] Chinese invention patent publication number CN114809734A discloses a method for constructing an assembled platform canopy, including: constructing a pile foundation on the station ground between the tracks within a railway station; constructing a cap on the pile foundation; hoisting prefabricated connecting columns and connecting them to the cap; hoisting prefabricated T-beams and connecting them to the prefabricated connecting columns; constructing the platform; for each prefabricated T-beam in the same row, connecting adjacent prefabricated T-beams with prefabricated crossbeams to form prefabricated components in the same row; installing roof components between adjacent prefabricated components in the same row; and completing construction. The canopy constructed by this method is continuously installed across the platform. The assembled construction method improves construction efficiency and ensures structural strength, making it suitable for widespread use.

[0003] In the related art, the existing high-speed railway platform canopy assembled square grid shell structure has a cast-in-place structure for beams and columns, a prefabricated structure for the slabs, and a support system using full-floor fasteners; however, the existing canopy construction formwork system usually adopts the form of wooden keels and wooden formwork, so that there are corresponding defects in the construction process, for example, the fastener frame, formwork, and keel are all disposable, which is not convenient for turnover, and the investment cost of the formwork is high, and the formwork is heavy, which cannot be quickly spliced ​​and assembled, and during the installation or disassembly process, due to the heavy weight of the formwork, there is a risk of falling, and safety cannot be guaranteed. During the disassembly and assembly process, more manpower is required, which increases labor costs and seriously reduces construction efficiency. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a construction method for an intelligent construction trolley for a platform canopy. The template installation platform is lifted by a hydraulic jacking scissors support structure, which can not only effectively reduce the high investment cost of the template, but also solve the problem that the template cannot be quickly spliced ​​and assembled due to its heavy weight, and solve the problem that during the installation or disassembly process, the heavy weight of the template increases the difficulty of disassembly and the risk of falling.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a construction method of a platform canopy intelligent construction trolley, comprising the following steps:

[0008] S1, according to the reasonable arrangement of the platform canopy structure trolley and formwork, according to the load-bearing structure column of the canopy structure, the beam and plate pouring construction of the canopy is carried out, and the trolley and formwork assembly and combination work are carried out on site;

[0009] S2, the canopy construction trolley adjustment positioning;

[0010] S3, the opening of the canopy folding steel formwork and the opening of the formwork truss outside folding structure are controlled through the hydraulic jacking structure, the corresponding position size of the formwork is adjusted and fixed and checked;

[0011] S4, the landing support mechanism on the trolley is adjusted, the trolley bridge system is separated from the ground, and all loads of the trolley are borne by the landing support, the formwork installation platform is jacked through the hydraulic jacking scissors support structure, the canopy steel formwork is in the initial preparation state of the formwork, and finally the pin shaft on the scissors support guide column is connected between the fixed formwork platform and the trolley chassis;

[0012] S5, the formwork is accurately adjusted and positioned through the adjusting mechanism on the formwork system, and the formwork is accurately positioned and combined through the landing support mechanism on the trolley;

[0013] S6, the temporary fixed support system is installed at the lower position of the formwork system, and the landing support is supported and reinforced at the position of the beam bottom formwork of the canopy H beam;

[0014] S7, the reinforcement binding construction of the beam and the plate is carried out on the platform canopy formwork;

[0015] S8, the upper formwork of the platform canopy is assembled, and the formwork is supported by the scattered plate, and then the concrete pouring construction of the platform canopy is carried out;

[0016] S9, when the concrete strength reaches 75%, the formwork is removed;

[0017] S10, the canopy steel formwork and the formwork truss outside folding structure are folded through the hydraulic jacking structure, the landing support structure of the trolley is adjusted, the trolley tire is in contact with the ground, and the trolley walking mechanism is adjusted and prepared;

[0018] S11, finally, the trolley is moved to the next construction section, and the steps S2-S10 are repeated, and the fixed support system needs to be removed when the concrete structure strength reaches 100%, and the trolley is used for circulation.

[0019] Preferably, the canopy structure in S1 includes a single-column canopy structure and a double-column canopy structure, and different numbers of construction trolleys are used according to the single-column canopy structure or the double-column canopy structure, wherein the number of construction trolleys required by the single-column canopy structure is four groups, and the design length of each group of trolley formwork is 12.5m, and the load-bearing structure column in S1 is in the completed pouring state.

[0020] Preferably, the hydraulic jacking structure in S3 comprises a first hydraulic telescopic rod and a second hydraulic telescopic rod, the steel formwork is driven to fan-shaped unfolding by the first hydraulic telescopic rod, and the outer folding structure of the formwork truss is driven to fan-shaped unfolding by the second hydraulic telescopic rod.

[0021] Preferably, the landing support mechanism in S4 adopts an adjustable support assembly, and the hydraulic jacking scissors support structure comprises an X-shaped support and a third hydraulic telescopic rod.

[0022] Preferably, the X-shaped support is composed of a plurality of guide columns hinged in an X shape, one group of guide columns of the X-shaped support is driven by the third hydraulic telescopic rod to form the jacking movement of the formwork mounting platform.

[0023] Preferably, the stripping construction in S9 comprises the following steps:

[0024] S91, removing the upper scattered formwork part;

[0025] S92, folding off the intermediate beam base hand tube support system;

[0026] S93, removing the formwork connection at the fixed support;

[0027] S94, removing the whole rain shed large formwork system.

[0028] Preferably, the fixed support system in S4 comprises a support plate, an arc-shaped supporting plate is fixedly connected to the top of the support plate, a base plate is fixedly connected to the bottom of the support plate, a sliding groove is formed in the bottom of the support plate, a sliding plate is slidably connected in the sliding groove, support rods are fixedly connected to the both sides of the bottom of the sliding plate, a first lead screw is rotatably connected in the sliding groove, the outer surface of the first lead screw is threadedly connected with the inner part of the sliding plate, a movable groove is formed in the top of the support plate, and an auxiliary support assembly is arranged in the movable groove.

[0029] Preferably, the auxiliary support assembly comprises a driving frame and a movable block rotatably connected in the movable groove, a top plate is hingedly connected to one end of the driving frame, a U-shaped frame is fixedly connected to the bottom of the driving frame, a driving block is rotatably connected in the U-shaped frame, a second lead screw is rotatably connected in the movable block, and the outer surface of the second lead screw is threadedly connected with the inner part of the driving block.

[0030] (Three) beneficial effects

[0031] Compared with the prior art, the present application provides a platform rain shed intelligent construction trolley construction method, which has the following beneficial effects:

[0032] 1. In the related art of the present application, the mold is accurately positioned and adjusted by the mold positioning mechanism on the template system, and the mold is accurately positioned and adjusted in the up-down direction by the floor support mechanism on the trolley, which solves the problems of misalignment and running of the template joint during installation, and the template installation platform is lifted by the hydraulic lifting scissors support structure, so that the steel template of the canopy is in the initial preparation state of the mold closing, and the fixed template platform is firmly connected with the trolley chassis, which not only effectively reduces the high investment cost of the template, but also solves the many problems in the construction process of the traditional full-support scaffold + scattered template of the platform concrete canopy, such as the safety of full-support formwork, the turnover of formwork materials, the poor construction site environment, and the falling danger due to the heavy weight of the template, further improving the safety during the construction of the canopy, and reducing the labor cost during disassembly and assembly, and effectively improving the construction efficiency.

[0033] 2. The first screw rod drives the sliding plate up and down, which in turn drives the two support rods to move up and down, and the downward movement of the two support rods can adjust the support height of the support plate, improve the contact area with the ground, and improve the stability of the support plate, and the auxiliary support assembly can improve the support area and range of the support plate, and improve the effect of the cured canopy. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A step schematic diagram of a platform canopy intelligent construction trolley construction method is provided for the present application;

[0035] Figure 2 A canopy construction trolley adjustment positioning schematic diagram in a platform canopy intelligent construction trolley construction method is provided for the present application;

[0036] Figure 3 A steel template template truss outside folding structure unfolding schematic diagram in a platform canopy intelligent construction trolley construction method is provided for the present application;

[0037] Figure 4 A mold closing schematic diagram in a platform canopy intelligent construction trolley construction method is provided for the present application;

[0038] Figure 5 A steel bar binding schematic diagram in a platform canopy intelligent construction trolley construction method is provided for the present application;

[0039] Figure 6 A mold stripping schematic diagram in a platform canopy intelligent construction trolley construction method is provided for the present application;

[0040] Figure 7A station canopy intelligent construction trolley construction method proposed in the application is a state diagram of a station canopy after construction.

[0041] Figure 8 A station canopy intelligent construction trolley construction method proposed in the application is a structure diagram of a fixed support system.

[0042] Figure 9 A station canopy intelligent construction trolley construction method proposed in the application Figure 8 A structure diagram of an auxiliary support assembly.

[0043] Figure 10 A station canopy intelligent construction trolley construction method proposed in the application is a state diagram of a canopy structure single column and double column.

[0044] In the figure: 1, steel formwork; 2, formwork truss outside folding structure; 3, formwork installation platform; 4, fixed support system; 41, support plate; 42, arc-shaped supporting plate; 43, pad plate; 44, sliding plate; 45, support column; 46, first lead screw; 47, movable groove; 48, auxiliary support assembly; 481, driving frame; 482, movable block; 483, top plate; 484, U-shaped frame; 485, driving block; 486, second lead screw; 5, first hydraulic telescopic rod; 6, second hydraulic telescopic rod; 7, supporting assembly; 8, X-shaped support; 9, third hydraulic telescopic rod. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0046] Embodiment 1

[0047] Referring to the accompanying drawings Figures 1-10 A station canopy intelligent construction trolley construction method, comprising the following steps:

[0048] S1, reasonably arranging a trolley and formwork according to a station canopy structure, pouring and constructing a beam and a plate of the canopy according to a load-bearing column condition of the canopy structure, and assembling and combining the trolley and the formwork on site;

[0049] S2, adjusting and positioning the canopy construction trolley;

[0050] S3, opening the canopy folding steel formwork 1 and the formwork truss outside folding structure 2 through a hydraulic jacking structure, adjusting and checking the corresponding position and size of the formwork;

[0051] S4, adjust the landing support mechanism on the trolley, let the trolley bridge system off the ground, and make all the loads of the trolley carried by the landing support, lift the formwork installation platform 3 through the hydraulic lifting scissors support structure, and make the canopy steel formwork 1 in the initial preparation state of closing the mold, and finally make the fixed formwork platform and the trolley chassis firmly connected on the scissors support guide column pin;

[0052] S5, adjust the mold through the mold system adjustment mechanism in the front, back, left and right direction, and accurately position the mold in the up and down direction through the landing support mechanism on the trolley;

[0053] S6, temporarily install the fixed support system 4 at the lower position of the mold system, and support and reinforce the position of the beam bottom formwork of the canopy H beam;

[0054] S7, perform the reinforcement binding construction of beams and slabs on the platform canopy formwork;

[0055] S8, assemble the upper formwork of the platform canopy, and support the formwork with scattered boards, and then perform the concrete pouring construction of the platform canopy;

[0056] S9, when the concrete strength reaches 75%, perform the formwork removal construction;

[0057] S10, fold the canopy steel formwork 1 and the outer folding structure 2 of the formwork truss through the hydraulic lifting structure, and return the landing support structure of the trolley to let the trolley tires touch the ground, and adjust the preparation of the trolley walking mechanism;

[0058] S11, finally move the trolley to the next construction section, repeat S2-S10, and when the concrete structure strength reaches 100%, remove the fixed support system 4, and then perform the removal;

[0059] The intelligent construction trolley for high-speed rail platform canopy is a movable and convenient whole formwork trolley integrating the early removal formwork system and construction method of high-speed rail platform canopy cantilever structure construction fixed support method and a plurality of scientific and technological achievements;

[0060] It takes the existing clear canopy as the application object, is used for clear concrete canopy construction, solves the modularization and industrialization construction upgrading of the full-frame formwork support system of the railway platform canopy, and realizes the intelligent mechanical construction of the platform canopy through finite element analysis calculation, self-adaptive mechanical design and intelligent research upgrading.

[0061] The construction modules mainly include: a fixed support method for early disassembly of a high-speed rail platform canopy cantilever structure construction formwork system, including an adjustable fixed support and an early disassembly formwork system construction; a high-speed rail platform canopy clean water large formwork system, including a flexible assembly clean water steel formwork 1, an automatic contraction and folding mechanism, and a powerful support truss structure; the canopy formwork has an automatic displacement adjustment mechanism, and an automatic and accurate jacking and folding structure, so that automatic installation and folding of the formwork are achieved;

[0062] The trolley is provided with a formwork installation platform 3, an automatic hydraulic jacking mechanism, and a stable support structure; the trolley chassis has an automatic walking mechanism control, an automatic hydraulic rear axle driving mechanism, an automatic hydraulic left and right side shifting mechanism, and an up-and-down fine adjustment landing support structure, which helps to accurately adjust and fold the formwork; the high-speed rail platform canopy construction has a smart construction site module, including intelligent detection and safety alarm;

[0063] The formwork is accurately adjusted and folded in the front, back, left and right directions by the adjusting mechanism on the formwork system, and the formwork is accurately positioned and folded in the up-and-down direction by the landing support mechanism on the trolley, so that the problems of misalignment and slurry running at the joints of the formwork during installation are solved; the formwork installation platform 3 is jacked up by the hydraulic jacking scissors support structure, so that the canopy steel formwork 1 is in the initial preparation state of folding, and the fixed formwork platform is firmly connected with the trolley chassis, which not only effectively reduces the high cost of formwork, but also solves the problems of large formwork weight and difficulty in rapid assembly, and the problem of falling danger during installation or disassembly, further improves the safety during canopy construction, and reduces the labor cost and effectively improves the construction efficiency during disassembly and assembly

[0064] The adjusting mechanism on the formwork system in S5 includes a driving groove opened in the formwork installation platform 3, and a hydraulic rod for driving and adjusting the formwork system in the front, back, left and right directions is installed in the driving groove, so as to improve the accurate positioning and folding work of the formwork in the up-and-down direction.

[0065] The canopy structure in S1 includes a single-column canopy structure and a double-column canopy structure, and different numbers of construction trolleys are used according to the single-column canopy structure or the double-column canopy structure, wherein the number of construction trolleys required for the single-column canopy structure is four groups, and the design length of the formwork of each group of trolleys is 12.5 m, and the bearing structure column in S1 is in a casted state.

[0066] The hydraulic jacking structure in S3 includes a first hydraulic telescopic rod 5 and a second hydraulic telescopic rod 6, the steel formwork 1 is driven to fan out by the first hydraulic telescopic rod 5, and the formwork truss outside folding structure 2 is driven to fan out by the second hydraulic telescopic rod 6.

[0067] The landing support mechanism in S4 adopts an adjustable support assembly 7, and the hydraulic jacking scissors support structure includes an X-shaped support 8 and a third hydraulic telescopic rod 9.

[0068] The X-shaped support 8 is composed of several guide columns hinged in an X shape. One group of guide columns of the X-shaped support 8 is driven by the third hydraulic telescopic rod 9 to form the jacking movement of the formwork mounting platform 3.

[0069] The stripping construction in S9 includes the following steps:

[0070] S91, remove the upper scattered formwork part;

[0071] S92, fold the intermediate beam foot pipe support system;

[0072] S93, remove the formwork connection at the fixed support;

[0073] S94, remove the whole rain shed formwork system.

[0074] Embodiment 2: different from embodiment 1;

[0075] Referring to the accompanying drawings Figures 8-9 In S4, the fixed support system 4 includes a support plate 41, the top of the support plate 41 is fixedly connected with an arc-shaped supporting plate 42, the bottom of the support plate 41 is fixedly connected with a pad plate 43, the bottom of the support plate 41 is provided with a sliding groove, the inside of the sliding groove is slidably connected with a sliding plate 44, the two sides of the bottom of the sliding plate 44 are fixedly connected with support rods 45, the inside of the sliding groove is rotatably connected with a first lead screw 46, the outer surface of the first lead screw 46 is threadedly connected with the inside of the sliding plate 44, the top of the support plate 41 is provided with a movable groove 47, and the inside of the movable groove 47 is provided with an auxiliary support assembly 48;

[0076] Through the setting of the support plate 41, the rain shed after stripping is temporarily supported, the effect after the solidification of the rain shed is ensured, and through the rotary driving of the first lead screw 46 by the handle, the sliding plate 44 can be driven up and down, and then the two support rods 45 can be driven to move up and down. Through the downward movement of the two support rods 45, the support height of the support plate 41 can be adjusted, and the contact area with the ground is increased, thereby improving the stability of the support.

[0077] The auxiliary support assembly 48 includes a driving frame 481 and a movable block 482 rotatably connected in the movable groove 47, one end of the driving frame 481 is hingedly connected with a top plate 483, the bottom of the driving frame 481 is fixedly connected with a U-shaped frame 484, the inside of the U-shaped frame 484 is rotatably connected with a driving block 485, the inside of the movable block 482 is rotatably connected with a second lead screw 486, and the outer surface of the second lead screw 486 is threadedly connected with the inside of the driving block 485;

[0078] Through the borrowed handle to the rotation drive of the second screw rod 486, the driving block 485 can be driven, because the driving block 485 is rotatably installed in the inside of the U-shaped frame 484, and the U-shaped frame 484 is rotatably installed in the inside of the movable groove 47 through the driving frame 481, so that the driving of the second screw rod 486 to the driving block 485 can drive the U-shaped frame 484 to drive the driving frame 481 to perform a sector motion at the rotating installation place, and the sector motion of the driving frame 481 can drive the top plate 483 to perform a sector motion, thereby supporting the rain shed after the die is removed, improving the support range of the rain shed, and further improving the support effect of the rain shed.

[0079] It should be noted that the term "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0080] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for constructing a platform canopy intelligent construction trolley, characterized in that: The following steps are involved: S1. Arrange the trolley and formwork reasonably according to the platform canopy structure, cast the beams and slabs of the canopy according to the load-bearing structural columns of the canopy structure, and assemble and combine the trolley and formwork on site; S2. Adjust and position the canopy construction trolley; S3, opening the canopy folding steel formwork (1) and the outer folding structure (2) of the formwork truss by controlling the hydraulic jacking structure, adjusting and fixing, and checking the corresponding position and size of the formwork; S4. Adjust the ground support mechanism on the trolley to lift the trolley axle system off the ground and make all the loads of the trolley be carried by the ground support. Lift the template installation platform (3) through the hydraulic lifting scissor support structure to put the canopy steel template (1) in the initial mold closing preparation state. Finally, pin the scissor support guide column to firmly connect the fixed template platform with the trolley chassis. S5. Use the adjustment mechanism on the template system to accurately adjust the front, back, left, and right directions of the template for mold closing. Use the landing support mechanism on the trolley to accurately position and close the template in the up and down directions. S6. Temporarily install the fixed support system (4) at the bottom of the formwork system, and provide ground support and reinforcement measures for the bottom formwork of the H-beam of the canopy; S7. Carry out steel bar binding construction of beams and slabs on the platform canopy formwork; S8. Assemble the upper formwork of the platform canopy and use loose slabs for formwork support, followed by pouring concrete for the platform canopy; S9. When the concrete strength reaches 75%, the formwork is removed; S10, retracting and folding the canopy steel formwork (1) and the outer folding structure (2) of the formwork truss through the hydraulic jacking structure, retracting the trolley landing support structure, allowing the trolley tires to touch the ground, and adjusting and preparing the trolley walking mechanism; S11, finally move the trolley to the next construction section, repeat the steps S2-S10, and the fixed support system (4) needs to wait until the concrete structure strength reaches 100% strength before dismantling and then use it for turnover; The fixed support system (4) includes a support plate (41), the top of the support plate (41) is fixedly connected to an arc-shaped support plate (42), the bottom of the support plate (41) is fixedly connected to a pad (43), the bottom of the support plate (41) is provided with a sliding groove, and the interior of the sliding groove is slidably connected to a sliding plate (44), both sides of the bottom of the sliding plate (44) are fixedly connected to support rods (45), the interior of the sliding groove is rotatably connected to a first screw rod (46), the outer surface of the first screw rod (46) is connected to the interior of the sliding plate (44) by threads, the top of the support plate (41) is provided with a movable groove (47), and the interior of the movable groove (47) is provided with an auxiliary support assembly (48); The auxiliary support assembly (48) includes a driving frame (481) and a movable block (482) rotatably connected to the inside of the movable groove (47), one end of the driving frame (481) is hinged with a top plate (483), the bottom of the driving frame (481) is fixedly connected to a U-shaped frame (484), the inside of the U-shaped frame (484) is rotatably connected to the driving block (485), the inside of the movable block (482) is rotatably connected to the second screw rod (486), and the outer surface of the second screw rod (486) is connected to the internal thread of the driving block (485).

2. The method for constructing a platform canopy intelligent construction vehicle according to claim 1, characterized in that: The canopy structure in S1 includes a single-column canopy structure and a double-column canopy structure. Different numbers of construction trolleys are used according to the single-column canopy structure or the double-column canopy structure. The single-column canopy structure requires four groups of construction trolleys, and the design length of the trolley template of each group is 12.5m. The load-bearing structural columns in S1 have been cast.

3. The method for constructing a platform canopy intelligent construction vehicle according to claim 1, characterized in that: The hydraulic jacking structure in S3 comprises a first hydraulic telescopic rod (5) and a second hydraulic telescopic rod (6), wherein the steel formwork (1) is driven to expand in a fan shape by the first hydraulic telescopic rod (5), and the outer folding structure (2) of the formwork truss is driven to expand in a fan shape by the second hydraulic telescopic rod (6).

4. The method for constructing a platform canopy intelligent construction vehicle according to claim 1, characterized in that: The landing support mechanism in S4 adopts an adjustable support assembly (7), and the hydraulic lifting scissors support structure includes an X-shaped bracket (8) and a third hydraulic telescopic rod (9).

5. The method for constructing a platform canopy intelligent construction vehicle according to claim 4, characterized in that: The X-shaped bracket (8) is composed of a plurality of guide columns hinged in an X shape, and a third hydraulic telescopic rod (9) is used to drive one group of guide columns on the X-shaped bracket (8), thereby forming a lifting movement of the template installation platform (3).

6. The method for constructing a platform canopy intelligent construction vehicle according to claim 1, characterized in that: The demoulding construction in S9 includes the following steps: S91, remove the upper loose mold part; S92, remove the scaffolding pipe support system at the bottom of the middle beam; S93, remove the template connection at the fixed support; S94, large formwork system for integrally retreating canopy.

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