Method for Matching and Fabricating the Vertical Integral Steel Bar Parts of Bridge Pier

Abstract

The present invention relates to the technical field of the manufacturing method of the steel bar parts of bridge piers, and specifically refers to a method for matching the manufacturing of the vertical integral steel bar parts of bridge piers. The method includes the following steps: S1, arranging an assembly jig; S2, binding the Nth section of steel bar parts in the assembly jig; S3, in the assembly jig, arranging the main steel bars of the (N + 1)th section of steel bar parts above the Nth section of steel bar parts, connecting the lower ends of the main steel bars of the (N + 1)th section of steel bar parts with the upper ends of the main steel bars of the Nth section of steel bar parts through threaded sleeves, and binding the (N + 1)th section of steel bar parts; S4, releasing the connection between the Nth section of steel bar parts and the (N + 1)th section of steel bar parts, transporting the Nth section of steel bar parts out of the assembly jig, and transporting them to the construction site of the pier; S5, lowering the (N + 1)th section of steel bar parts, binding the (N + 2)th section of steel bar parts on the (N + 1)th section of steel bar parts according to the above steps, and proceeding in sequence until all the steel bar parts are manufactured. The manufacturing method of the present invention is extremely efficient and has extremely high assembly accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of the manufacturing method of the reinforcing bar parts of a bridge pier, and particularly to a method for matching and manufacturing the vertical integral reinforcing bar parts of a bridge pier. Background Art

[0002] The construction of reinforcing bar parts is one of the future directions in the field of bridge construction. For bridge piers, their size and structure are single, and there is no overall taper change, which is particularly suitable for the construction of reinforcing bar parts. The prefabrication of pier reinforcing bar parts means that the steel bar binding is prefabricated under the tower in advance, and then hoisted onto the tower as a whole and connected to the already poured reinforcing bars to complete the steel bar operation on the tower column. Utilizing the prefabrication of reinforcing bar parts can not only improve the construction quality of reinforcing bars, but also improve the construction efficiency and the working environment of steel bar operations. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies in the above background art and provide a method for matching and manufacturing the vertical integral reinforcing bar parts of a bridge pier.

[0004] The technical solution of the present invention is as follows: A method for matching and manufacturing the vertical integral reinforcing bar parts of a bridge pier includes the following steps:

[0005] S1. Arrange an assembly jig;

[0006] S2. Bind the Nth section of reinforcing bar parts inside the assembly jig;

[0007] S3. Inside the assembly jig, arrange the main bars of the (N + 1)th section of reinforcing bar parts above the Nth section of reinforcing bar parts, connect the lower end of the main bars of the (N + 1)th section of reinforcing bar parts with the upper end of the main bars of the Nth section of reinforcing bar parts through threaded sleeves, and bind the (N + 1)th section of reinforcing bar parts;

[0008] S4. Release the threaded sleeve connection between the Nth section of reinforcing bar parts and the (N + 1)th section of reinforcing bar parts, remove the Nth section of reinforcing bar parts from the assembly jig, and transport them to the construction site of the pier;

[0009] S5. Lower the (N + 1)th section of reinforcing bar parts, and bind the (N + 2)th section of reinforcing bar parts on the (N + 1)th section of reinforcing bar parts according to the above steps, and proceed in sequence until all the reinforcing bar parts are manufactured.

[0010] According to the method for matching and manufacturing the vertical integral reinforcing bar parts of a bridge pier provided by the present invention, the method for arranging the assembly jig in step S1 includes: laying tracks, installing a walking platform on the tracks, arranging an outer climbing frame outside the walking platform, and arranging an inner climbing frame inside the outer climbing frame to complete the arrangement of the assembly jig.

[0011] According to a method for matching and fabricating the vertical integral steel bar components of a bridge pier provided by the present invention, when N = 1, the method for tying the Nth section of steel bar components in the assembly jig includes: arranging multiple layers of the Nth section main steel bar positioning plates on the walking platform, the multiple layers of the Nth section main steel bar positioning plates are arranged at intervals in the height direction, inserting the Nth section main steel bars into the positioning holes of the multiple layers of the Nth section main steel bar positioning plates, and making the ends of adjacent Nth section main steel bars stagger in the height direction. Tie stirrups and hook bars on the Nth section main steel bars to complete the tying and fabrication of the Nth section of steel bar components.

[0012] According to a method for matching and fabricating the vertical integral steel bar components of a bridge pier provided by the present invention, when N = 1, the method for making the ends of adjacent Nth section main steel bars stagger in the height direction includes: placing cushion blocks on the walking platform in advance, the cushion blocks corresponding to the Nth section main steel bars that protrude among the stagger - arranged Nth section main steel bars, and then sequentially inserting the Nth section main steel bars into the positioning holes of the Nth section main steel bar positioning plates, making the lower ends of some Nth section main steel bars support on the cushion blocks on the walking platform to form a protruding state, and staggering with the ends of adjacent Nth section main steel bars in the height direction.

[0013] According to a method for matching and fabricating the vertical integral steel bar components of a bridge pier provided by the present invention, the method for arranging the main steel bars of the (N + 1)th section of steel bar components in the assembly jig in step S3 includes: installing a support rod on the top of the external climbing frame, installing a (N + 1)th section main steel bar positioning plate on the support rod, using the support frame on the external climbing frame to hoist the internal climbing frame to the construction position for tying the (N + 1)th section of steel bars, inserting the (N + 1)th section main steel bars into the positioning holes of the (N + 1)th section main steel bar positioning plate, and connecting the lower end of the (N + 1)th section main steel bar with the upper end of the Nth section main steel bar through a threaded sleeve.

[0014] According to a method for matching and fabricating the vertical integral steel bar components of a bridge pier provided by the present invention, the method for connecting the lower end of the (N + 1)th section main steel bar with the upper end of the Nth section main steel bar through a threaded sleeve includes: pre - sleeving the spiral sleeve on the upper end of the Nth section main steel bar, when arranging the (N + 1)th section main steel bar, screwing the lower end of the (N + 1)th section main steel bar into the threaded sleeve by 2 - 3 threads.

[0015] According to a method for matching and fabricating the vertical integral steel bar components of a bridge pier provided by the present invention, the method for releasing the threaded sleeve connection between the Nth section of steel bar components and the (N + 1)th section of steel bar components in step S4 includes: screwing the threaded sleeve to the Nth section main steel bar to release the connection between the threaded sleeve and the (N + 1)th section main steel bar, and vertically lifting the (N + 1)th section of steel bar components upward through a lifting tool to completely separate the (N + 1)th section of steel bar components from the Nth section of steel bar components.

[0016] According to a method for matching and fabricating the vertical integral steel bar parts of a bridge pier provided by the present invention, the method for transporting the Nth section of steel bar parts out of the assembly jig in step S4 includes: opening the side door on the external climbing frame, and driving the walking platform along the track to transport the Nth section of steel bar parts out of the side door and out of the assembly jig.

[0017] According to a method for matching and fabricating the vertical integral steel bar parts of a bridge pier provided by the present invention, the method for lowering the (N + 1)th section of steel bar parts in step S5 includes: after the Nth section of steel bar parts on the walking platform is transported away, driving the walking platform back into the assembly jig and re-fixing it at the initial position, and then lowering the (N + 1)th section of steel bar parts onto the walking platform.

[0018] According to a method for matching and fabricating the vertical integral steel bar parts of a bridge pier provided by the present invention, the method for binding stirrups and hook bars on the Nth section of main steel bars includes: arranging stirrup positioning comb plates at the four corners of the installation space of the Nth section of steel bar parts between the external climbing frame and the internal climbing frame, clamping the stirrups into the stirrup positioning comb plates, and then welding the contact points between the Nth section of main steel bars and the stirrups, and sequentially installing external cavity stirrups, internal cavity stirrups and hook bars.

[0019] The advantages of the present invention are as follows: 1. In the present invention, the binding and assembly of two sections of steel bar parts are carried out vertically in the assembly jig. The adjacent two sections of steel bar parts will be pre-matched in the assembly jig. The upper section of steel bar parts in the assembly jig is bound and installed based on the lower section of steel bar parts, that is, the main steel bars of the upper and lower two sections of steel bar parts are pre-positioned and matched in advance. When actual assembly and installation are carried out, due to the pre-match positioning, the main steel bars of the upper and lower two sections of steel bar parts can be quickly aligned and matched naturally, and thus the alignment and assembly of the upper and lower two sections of steel bar parts can be quickly completed, greatly improving the installation efficiency of adjacent two sections of steel bar parts;

[0020] 2. The assembly jig of the present invention has a simple structure and is convenient for installation and operation, and can conveniently realize the vertical continuous binding construction of this case, and the transportation of steel bar parts is also extremely convenient;

[0021] 3. In the present invention, main steel bar positioning plates are arranged in the assembly jig, and the main steel bars are limited by the main steel bar positioning plates. The main steel bars are inserted into the corresponding positioning holes in the main steel bar positioning plates, and the positioning restriction is extremely convenient, greatly improving the binding construction efficiency of steel bar parts;

[0022] 4. In the present invention, by pre-installing a cushion block structure on the walking platform to support the main steel bars, the adjacent main steel bars are staggered in the height direction. When docking, there will be no mutual interference between the adjacent main steel bars, which is convenient for subsequent docking with the main steel bars of adjacent steel bar parts;

[0023] 5. When tying the (N + 1)-th section of the steel bar component in the present invention, the main steel bars of the (N + 1)-th section are installed based on the main steel bars of the N-th section. By pre-installing the positioning plate for the main steel bars of the (N + 1)-th section, and then inserting the main steel bars of the (N + 1)-th section into the positioning plate for the main steel bars of the (N + 1)-th section, the lower end of the main steel bars of the (N + 1)-th section is aligned with the upper end of the main steel bars of the N-th section, and they are connected by a threaded sleeve to complete the pre-positioning and pre-matching work, facilitating the assembly and docking during the final pier construction;

[0024] 6. The connection between the main steel bars of the (N + 1)-th section and the main steel bars of the N-th section in the present invention is a temporary connection, only for aligning the two to achieve the purposes of pre-matching and pre-positioning. Therefore, it is not necessary to tighten the threaded sleeve with the main steel bars of the (N + 1)-th section, and only screw it in 2 - 3 threads to facilitate subsequent detachment;

[0025] 7. After the tying of the (N + 1)-th section of the steel bar component in the present invention is completed, the (N + 1)-th section of the steel bar component is lifted upward by a lifting tool to completely separate the (N + 1)-th section of the steel bar component from the N-th section of the steel bar component, facilitating the transfer of the N-th section of the steel bar component. After the N-th section of the steel bar component is transferred out, the lowering of the (N + 1)-th section of the steel bar component can be used as the tying basis for the (N + 2)-th section of the steel bar component, and so on, greatly improving the tying efficiency;

[0026] 8. In the present invention, a side door is provided on the external climbing frame. After the (N + 1)-th section of the steel bar component is completely separated from the N-th section of the steel bar component, only by opening the side door, the N-th section of the steel bar component can be conveniently transferred out of the assembly jig through the walking platform, and the transfer method is extremely simple;

[0027] 9. After the N-th section of the steel bar component is transferred out in the present invention, the walking platform returns to the assembly jig again, and then the (N + 1)-th section of the steel bar component is lowered. The (N + 1)-th section of the steel bar component is used as the tying basis for the (N + 2)-th section of the steel bar component, completing the tying of the (N + 2)-th section of the steel bar component and the pre-matching and pre-positioning of the main steel bars of the (N + 1)-th section and the (N + 2)-th section of the steel bar component. The whole process is in good order and extremely efficient;

[0028] 10. In the present invention, the tying of the steel bar component positions the main steel bars through the main steel bar positioning plate and positions the stirrups through the stirrup positioning comb plate. The positioning accuracy during the whole tying construction process is extremely high, the accuracy of the formed steel bar component is good, and the tying construction is convenient.

[0029] The manufacturing method of the present invention is extremely efficient, and pre-positioning and pre-matching are completed in the assembly jig in advance. During the pier assembly construction, it can greatly improve the assembly efficiency of adjacent two sections of steel bar components, improve the assembly accuracy, and has great popularization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 : Front view of the assembly jig of the present invention;

[0031] Figure 2 : Side view of the assembly tire rack of the present invention;

[0032] Figure 3 : Schematic diagram of the main reinforcement positioning plate structure of the present invention;

[0033] Figure 4 : Schematic diagram of the support frame structure of the present invention;

[0034] Figure 5 : Schematic diagram of the binding and manufacturing of the first-stage steel bar parts of the present invention;

[0035] Figure 6 : Schematic diagram of the lifting of the inner row of frames of the present invention;

[0036] Figure 7 : Schematic diagram of the binding and manufacturing of the second-stage steel bar parts based on the first-stage steel bar parts of the present invention;

[0037] Figure 8 : Schematic diagram of the disconnection of the first-stage steel bar parts and the second-stage steel bar parts of the present invention;

[0038] Figure 9 : Schematic diagram of the transfer of the first-stage steel bar parts of the present invention;

[0039] Figure 10 : Schematic diagram of the structure when the walking platform returns to the assembly tire rack after the transfer of the first-stage steel bar parts of the present invention is completed;

[0040] Figure 11 : Schematic diagram of the structure when the second-stage steel bar parts are lowered onto the walking platform of the present invention;

[0041] Among them: 1 - external climbing frame; 2 - internal climbing frame; 3 - walking platform; 4 - track; 5 - main reinforcement positioning plate; 6 - positioning hole; 7 - support frame; 8 - support rod; 9 - suspension rod; 10 - stirrup positioning comb plate. Detailed implementation manners

[0042] The embodiments of the present invention will be described in detail below. The same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 thus cannot be construed as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] Existing steel bar component forming is usually carried out separately under the tower, and then the whole is hoisted onto the tower and matched and butted with adjacent steel bar components. The assembly requires that the main steel bars of the upper and lower adjacent sections of steel bar components are accurately aligned in the vertical direction. Otherwise, the threaded sleeve connecting the vertical adjacent main steel bars cannot be screwed in to complete the butt joint. Since existing steel bar components are formed separately during the forming process and the main steel bars are butted on the pier body, this mode often leads to the inability to accurately match the vertical adjacent main steel bars, the butt joint difficulty of the main steel bars of two steel bar components is extremely high, and the assembly efficiency of the steel bar components is extremely low.

[0046] To solve the above technical problems, the present application provides a method for matching and fabricating vertical integral steel bar components of a bridge pier body. During the fabrication process of the steel bar components, pre-positioning and pre-matching of two adjacent sections of steel bar components are carried out, so that the main steel bars in two adjacent sections of steel bar components can be accurately matched before the pier body installation. When matching and installing with the pier body, the two adjacent sections of steel bar components can be quickly butted, greatly reducing the assembly difficulty of the two adjacent sections of steel bar components and improving the assembly efficiency.

[0047] The following further elaborates the present invention in detail with reference to the drawings and specific embodiments.

[0048] As Figures 1 to 11 , the method for matching and fabricating vertical integral steel bar components of a bridge pier body in this embodiment is carried out according to the following steps:

[0049] S1. Arrange the assembly jig.

[0050] The assembly jig is a jig structure for binding steel bar components. The assembly jig should accommodate two sections of steel bar components at one time. The two sections of steel bar components are stacked vertically. In addition, a lifting device is arranged above the assembly jig for vertically lifting and lowering the upper section of steel bar components. Moreover, the assembly jig also needs to facilitate the transfer of the lower section of steel bar components.

[0051] S2. Bind the Nth section of steel bar components in the assembly jig;

[0052] All the steel bar components in this embodiment are bound and formed in the assembly jig.

[0053] S3. In the assembly jig, arrange the main bars of the (N + 1)th section of steel bar components above the Nth section of steel bar components, connect the lower end of the main bar of the (N + 1)th section of steel bar components to the upper end of the main bar of the Nth section of steel bar components through a threaded sleeve, and bind the (N + 1)th section of steel bar components;

[0054] The main bar of the (N + 1)th section of steel bar components is assembled and arranged based on the main bar of the Nth section of steel bar components. That is, when constructing the (N + 1)th section of steel bar components, the main bar of the Nth section of steel bar components is used as the basis to assemble the main bar of the (N + 1)th section of steel bar components at the beginning, and then the main bars of the two sections of steel bar components are connected through a threaded sleeve to complete the pre-positioning and pre-matching work. The whole pre-matching method is extremely simple.

[0055] The two ends of the main bar of the (N + 1)th section of steel bar components and the main bar of the Nth section of steel bar components should be pre-threaded to facilitate connection with the threaded sleeve. Threading should be done at both ends of the main bar. One end is threaded with long threads (thread length equal to the height of the threaded sleeve), and the other end is threaded with short threads (thread length equal to half of the height of the threaded sleeve).

[0056] S4. Disconnect the connection between the Nth section of steel bar components and the (N + 1)th section of steel bar components, transfer the Nth section of steel bar components out of the assembly jig, and transport them to the pier construction site;

[0057] Transfer the lower Nth section of steel bar components out of the assembly jig, and keep the upper (N + 1)th section of steel bar components in the assembly jig as the binding and assembly basis for the (N + 2)th section of steel bar components.

[0058] S5. Lower the (N + 1)th section of steel bar components, and bind the (N + 2)th section of steel bar components on the (N + 1)th section of steel bar components according to the above steps, and proceed in sequence until all steel bar components are manufactured;

[0059] Lower the (N + 1)th section of steel bar components, use it as the basis for the (N + 2)th section of steel bar components to be bound and assembled, and manufacture the (N + 2)th section of steel bar components on the (N + 1)th section of steel bar components according to the above steps, and proceed in sequence. The whole construction process is extremely smooth and the manufacturing efficiency is extremely high.

[0060] When the steel bar components are transported to the pier shaft, the steel bar components are lifted by a lifting tool above the already installed steel bar components on the pier shaft. Since the steel bar components of this section have been pre-matched with the already installed steel bar components in the assembly jig during fabrication, it is very convenient to accurately butt the main bars of the two sections of steel bar components, and then connect them through threaded sleeves. The entire assembly method is extremely simple, and the accuracy of butt matching is extremely high, greatly improving the installation efficiency of the steel bar components.

[0061] In some other embodiments of the present application, as Figures 1 to 4 shown, the assembly jig includes a walking platform 3, an inner climbing frame 2 and an outer climbing frame 1. The walking platform 3 is a movable platform support structure with walking wheels. The walking wheels of the walking platform 3 are supported on the laid track 4. The walking platform 3 can be used for the transfer of steel bar components, that is, by driving the walking platform 3 to move along the track 4, the steel bar components on the walking platform 3 can be transferred out of the assembly jig, facilitating subsequent loading and transfer. At the same time, the track 4 also limits the walking direction of the platform 3 so that it cannot deviate from the track 4.

[0062] The outer climbing frame 1 is a frame structure arranged outside the walking platform 3. The outer climbing frame 1 is a ring-shaped multi-layer artificial platform, and a stair structure is provided on the outer climbing frame 1 to facilitate personnel construction. An inner climbing frame 2 is also provided inside the outer climbing frame 1. The inner climbing frame 2 is also a ring-shaped multi-layer artificial platform, and a stair structure is also provided on the inner climbing frame 2 to facilitate personnel construction. The binding and fabrication of the steel bar components are carried out inside the outer climbing frame 1, or between the outer climbing frame 1 and the inner climbing frame 2.

[0063] A support frame 7 is also provided at the top of the outer climbing frame 1. The support frame 7 is a support structure for supporting the inner climbing frame 2., as Figure 3 shown, the support frame 7 is a ring-shaped frame structure arranged at the top of the outer climbing frame 1. Multiple support rods 8 are provided on the support frame 7. The support rods 8 are horizontal rods that can rotate around the vertical axis. When it is necessary for the support rods 8 to support the inner climbing frame 2, the support rods 8 can be rotated so that one end of the support rods 8 rotates above the inner climbing frame 2, and the inner climbing frame 2 is fixed by connecting one end of the support rods 8 with the inner climbing frame 2 through a vertical hanging rod 9.

[0064] It also includes a main bar positioning plate 5 for positioning the main bars of the steel bar components, as Figure 3 shown, the main bar positioning plate 5 of this embodiment is a ring-shaped plate structure. A plurality of positioning holes 6 corresponding to the main bars are opened on the main bar positioning plate 5. The positioning holes 6 are through holes passing through the main bar positioning plate 5. When installing the main bars, the main bars pass through the positioning holes 6 from top to bottom and are positioned by the main bar positioning plate 5.

[0065] The main bar positioning plate 5 includes an inner plate and an outer plate. The long side of the outer plate has double-layer positioning holes corresponding to double rows of main bars.

[0066] It also includes a stirrup positioning comb plate 10 for positioning stirrups. The positioned stirrups include outer cavity stirrups and inner cavity stirrups.

[0067] During use, the main reinforcement positioning plate 5 and the stirrup positioning comb plate 10 are both located between the outer climbing frame 1 and the inner climbing frame 2. The inner climbing frame 2 is located in the hollow position of the main reinforcement positioning plate 5. The stirrup positioning comb plate 10 is located at the four corners of the reinforcement component assembly for positioning stirrups.

[0068] It further includes a lifting tool that extends into the outer climbing frame 1 from top to bottom for hoisting the reinforcement components to move the reinforcement components vertically.

[0069] In some embodiments of the present application, the binding construction of the first section of reinforcement components is optimized. That is, when N = 1, the first section of reinforcement components is the reinforcement components at the lowest layer in the pier body reinforcement cage. The assembly of this section of reinforcement components is completed on the walking platform 3. That is, first fix the walking platform 3 at the initial position. At this time, the inner climbing frame 2 is also placed on the walking platform 3. Then, at least two layers of main reinforcement positioning plates 5 are arranged between the outer climbing frame 1 and the inner climbing frame 2. In this embodiment, there are two layers of main reinforcement positioning plates 5. During actual use, corresponding adjustments can be made according to the specifications and dimensions of the reinforcement components. The two layers of main reinforcement positioning plates 5 are arranged at intervals in the vertical direction.

[0070] The main reinforcement positioning plate 5 is temporarily fixed on the outer climbing frame 1 and the inner climbing frame 2, respectively located near the upper and lower ends of the main reinforcement to be installed. Then, four groups of stirrup positioning comb plates 10 are installed between the inner climbing frame 2 and the outer climbing frame 1 for positioning stirrups. The four groups of stirrup positioning comb plates 10 are respectively placed at the four corners of the reinforcement component installation space. Then, the main reinforcement is inserted into the main reinforcement positioning plate 5. The main reinforcement passes through the positioning holes 6 on the two layers of main reinforcement positioning plates 5. Stirrups and hook bars are tied to the main reinforcement through the stirrup positioning comb plate 10 to form the reinforcement components. The above is the manufacturing method of the first section of reinforcement components.

[0071] Since the main reinforcements of adjacent two sections of reinforcement components are connected by threaded sleeves, the gap between adjacent main reinforcements (especially adjacent main reinforcements in double-row main reinforcements) of each section of reinforcement components is relatively small. In order to avoid interference problems due to insufficient space during the butt joint of the main reinforcements of two sections of reinforcement components, in this embodiment, when manufacturing the reinforcement components, the main reinforcements in the reinforcement components are pre-arranged in a staggered arrangement mode. The staggered arrangement mode in this embodiment means that the end of each main reinforcement is staggered with the end of the adjacent main reinforcement in the height direction, that is, the end of the main reinforcement exceeds or is lower than the end of the adjacent main reinforcement by a set height. The set height in this embodiment is 5D (D is the diameter of the main reinforcement).

[0072] In some other embodiments of the present application, the method for staggering the ends of adjacent Nth main reinforcements in the height direction is optimized. Specifically, when N equals 1, that is, during the binding and fabrication of the first section of steel bar component, spacers are pre-placed on the walking platform 3. The spacers correspond to the Nth main reinforcements that protrude among the staggeringly arranged Nth main reinforcements. Then, the Nth main reinforcements are sequentially inserted into the positioning holes of the Nth main reinforcement positioning plate, such that the lower ends of some of the Nth main reinforcements are supported on the spacers on the walking platform, forming a protruding state, and staggering with the ends of the adjacent Nth main reinforcements in the height direction.

[0073] During actual use, it is not limited to the structure of the spacers. Short steel bars can also be used as the support structure. The short steel bars with a length of 5D are inserted into the positioning holes of the lower-layer Nth main reinforcement positioning plate. The short steel bars are arranged according to the distribution pattern of the protruding Nth main reinforcements. Then, the Nth main reinforcements are inserted into the positioning holes of the two-layer Nth main reinforcement positioning plate, and the lower ends of some of the Nth main reinforcements are supported on the upper ends of the short steel bars, forming an extended state.

[0074] In some optimized embodiments of the present application, the method for arranging the main reinforcements of the (N + 1)th section of steel bar component in the assembly jig is optimized. Specifically, a support rod is installed on the top of the external climbing frame. Actually, it is to rotate the support rod on the support frame above the internal climbing frame. A positioning plate for the (N + 1)th main reinforcement is installed on the support rod. At this time, there are three layers of main reinforcement positioning plates in the entire external climbing frame. Then, the internal climbing frame is lifted by a lifting tool (since the main reinforcement positioning plates and the formed steel bar components are all annular structures and there is a moving space in the middle, the internal climbing frame can be vertically lifted by the lifting tool) into the assembly space of the (N + 1)th section of steel bar component. The support rod and the internal climbing frame are connected by a suspender, such that the internal climbing frame is suspended in the external climbing frame. The (N + 1)th main reinforcements are inserted into the positioning holes of the (N + 1)th main reinforcement positioning plate. The threaded sleeve is pre-sleeved on the upper end of the Nth main reinforcement. When the (N + 1)th main reinforcement is inserted, the lower end of the (N + 1)th main reinforcement is screwed into the threaded sleeve to complete the pre-positioning and pre-matching of the main reinforcements of the upper and lower two sections of steel bar components. At this time, the threaded sleeve connects the lower end of the (N + 1)th main reinforcement with the upper end of the Nth main reinforcement. Then, the fabrication of the (N + 1)th section of steel bar component can be carried out based on the (N + 1)th main reinforcement.

[0075] In some other embodiments of the present application, the method for connecting the lower end of the (N + 1)th main reinforcement with the upper end of the Nth main reinforcement through the threaded sleeve is optimized. Because the butt joint of the (N + 1)th main reinforcement and the Nth main reinforcement in the assembly jig is only pre-positioning and pre-matching, and it is not necessary to completely fasten and connect the two groups of main reinforcements. Therefore, when the lower end of the (N + 1)th main reinforcement enters the threaded sleeve, it is only necessary to screw the lower end of the (N + 1)th main reinforcement into the threaded sleeve by 2 to 3 threads. This degree of connection can complete the pre-positioning and pre-matching of the two main reinforcements and will not affect the subsequent disconnection process.

[0076] In some embodiments of the present application, the method for disconnecting the Nth section of steel bar component and the (N + 1)th section of steel bar component in step S4 above is optimized. After the (N + 1)th section of steel bar component is fabricated, it is necessary to transfer the Nth section of steel bar component out of the assembly jig. At this time, the (N + 1)th section of steel bar component and the Nth section of steel bar component are connected together by a threaded sleeve. Therefore, first, the connection between the two sections of steel bar components needs to be disconnected. Screw the threaded sleeve onto the Nth main steel bar, and leave the threaded sleeve at the upper end of the Nth main steel bar. Disconnect the connection between the threaded sleeve and the (N + 1)th main steel bar, and vertically lift the (N + 1)th section of steel bar component upward by a hoisting device. The lifting height is 1.5 m, so that the (N + 1)th section of steel bar component is completely separated from the Nth section of steel bar component.

[0077] At this time, the Nth section of steel bar component is located on the walking platform and is only fixedly connected to the walking platform. The Nth section of steel bar component can be transferred out of the assembly jig through the walking platform.

[0078] In some other embodiments of the present application, the method for transferring the Nth section of steel bar component out of the assembly jig in step S4 above is optimized. A side door is provided on the external climbing frame in this embodiment. The side door is in a closed state during the steel bar component binding construction. After the (N + 1)th section of steel bar component is completely separated from the Nth section of steel bar component, open the side door and drive the walking platform to move along the track, then the Nth section of steel bar component can be transferred out of the assembly jig, and then it can be loaded and transported to the pier construction position.

[0079] In some further embodiments of the present application, the method for lowering the (N + 1)th section of steel bar component in step S5 above is optimized. After the Nth section of steel bar component on the walking platform is transported away, drive the walking platform back into the assembly jig and re-fix it at the initial position, and then lower the (N + 1)th section of steel bar component onto the walking platform. That is, the (N + 1)th section of steel bar component is directly lowered onto the walking platform. At this time, the (N + 1)th main steel bars on the (N + 1)th section of steel bar component are staggered, which can be used as the assembly foundation for the (N + 2)th main steel bars. Moreover, at this time, the internal climbing frame has been in the assembly space position of the (N + 2)th section of steel bar component, and the main steel bar positioning plate has also been installed in place, so the assembly of the (N + 2)th main steel bars can be carried out quickly.

[0080] In some other embodiments of the present application, the method for binding stirrups and hook bars on the Nth main steel bar is optimized. Stirrup positioning comb plates are arranged at the four corners of the installation space of the Nth section of steel bar component on the walking platform. Clip the stirrups into the stirrup positioning comb plates, and then weld the contact points between the Nth main steel bar and the stirrups. Install the outer cavity stirrups, inner cavity stirrups and hook bars in sequence.

[0081] Specifically, the method for matching and fabricating the vertical integral steel bar components of the bridge pier in the present application is carried out according to the following steps:

[0082] Step 1: Lay the track, install a walking platform on the track, arrange an external climbing frame and an internal climbing frame, and install a support frame on the top of the external climbing frame, as Figure 1 shown;

[0083] Step 2: Fix the walking platform at the initial position. The internal climbing frame is on the walking platform. Arrange two layers of main reinforcement positioning plates between the internal climbing frame and the external climbing frame. The two layers of main reinforcement positioning plates are arranged at intervals vertically. And insert short steel bars into some positioning holes of the lower-layer main reinforcement positioning plate, which are used to make the ends of the main reinforcements of the steel bar parts stagger at one end. At the same time, in the subsequent production of steel bar parts, they are used to support the steel bar parts, making the force on the steel bar parts at the bottom of the jig more uniform. The short steel bars are arranged corresponding to the extension of the first section of the main reinforcement of the first section of the steel bar part. Then arrange stirrup positioning comb plates at the four corners of the assembly space of the first section of the steel bar part. Insert the first section of the main reinforcement into the positioning holes of the two layers of main reinforcement positioning plates from top to bottom. The lower ends of some of the first section of the main reinforcement support on the short steel bars to form an extended state. Position the stirrups through the stirrup comb plates, and sequentially install external cavity stirrups, internal cavity stirrups, and hook bars. Snap the stirrups into the stirrup comb plates, and then weld the contact points between the first section of the main reinforcement and the stirrups firmly to complete the production of the first section of the steel bar part, as Figure 5 shown;

[0084] Step 3: Rotate the support rod on the support frame at the top of the external climbing frame above the internal climbing frame, install another main reinforcement positioning plate on the support rod, and lift the internal climbing frame to move it into the assembly space of the second section of the steel bar part, as Figure 6 shown. Fix the support rod and the internal climbing frame through a suspension rod, so that the internal climbing frame is suspended inside the external climbing frame. Sleeve a threaded sleeve on the upper end of the first section of the main reinforcement. Arrange four groups of stirrup positioning comb plates between the internal climbing frame and the external climbing frame. Then insert the second section of the main reinforcement into the topmost main reinforcement positioning plate. The lower end of the second section of the main reinforcement extends into the corresponding threaded sleeve below. Screw the lower end of the second section of the main reinforcement into the threaded sleeve by 2 - 3 threads to complete the pre-positioning and pre-matching of the first section of the main reinforcement and the second section of the main reinforcement. Bind and fabricate the second section of the steel bar part through the pre-arranged stirrup positioning comb plates, as Figure 7 shown;

[0085] Step 4: After the production of the second section of the steel bar part is completed, screw the threaded sleeve down onto the first section of the main reinforcement, unscrew the threaded sleeve from the lower end of the second section of the main reinforcement, release the connection between the first section of the main reinforcement and the second section of the main reinforcement. Connect the second section of the steel bar part through a lifting tool, and vertically lift the second section of the steel bar part to a certain height, as Figure 8 shown, so that the second section of the steel bar part is completely separated from the first section of the steel bar part. Remove the main reinforcement positioning plate on one side of the upper end of the first section of the steel bar part, open the side door on the external climbing frame, and drive the walking platform to move along the track. The walking platform transports the first section of the steel bar part out of the external climbing frame, asFigure 9 as shown;

[0086] Step Five: Open the side door at the bottom of the jig, transfer the first-section steel bar component from the walking platform to the transport vehicle. Leave the main reinforcement positioning plate on one side at the lower end of the first-section steel bar component on the walking platform. Then, transport the first-section steel bar component to the pier construction site by the transport vehicle, and hoist the first-section steel bar component to the construction site by a hoisting device;

[0087] Step Six: After the first-section steel bar component is transferred from the walking platform to the transport vehicle, drive the walking platform to move back into the external climbing frame along the track. As shown in, fix the walking platform at the original position again, close the side door at the bottom of the jig in time, and lower the second-section steel bar component to the walking platform by the spreader (at this time, since the internal climbing frame occupies the space for the spreader to lower, the internal climbing frame also needs to be fixed on the spreader for overall lowering, that is, the internal climbing frame and the second-section steel bar component are lowered together. Then, after the second-section steel bar component is lowered in place, lift the internal climbing frame to the binding space of the third-section steel bar component by the spreader) as shown in. Based on the second-section steel bar component, carry out the binding construction of the third-section steel bar component on the second-section steel bar component. Carry out in sequence according to the above steps until all the steel bar components are manufactured. Figure 10 as shown; Figure 11 as shown. Carry out the binding construction of the third-section steel bar component on the second-section steel bar component. Carry out in sequence according to the above steps until all the steel bar components are manufactured.

[0088] Hoist the steel bar component onto the tower, align the main reinforcement with the main reinforcement of the previous-section steel bar component, screw the threaded sleeve to the connection of the two-section main reinforcements, install the remaining stirrups, install one stirrup on each side of the threaded sleeve, and install the remaining hook bars.

[0089] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A method for matching and fabricating the vertical integral steel bar parts of a bridge pier shaft, characterized in that: It includes the following steps: S1. Arrange the assembly jig; S2. Bind the Nth section of steel bar parts inside the assembly jig; S3. Inside the assembly jig, arrange the main steel bars of the (N + 1)th section of steel bar parts above the Nth section of steel bar parts, connect the lower end of the main steel bars of the (N + 1)th section of steel bar parts with the upper end of the main steel bars of the Nth section of steel bar parts through threaded sleeves, and bind the (N + 1)th section of steel bar parts; S4. Release the threaded sleeve connection between the Nth section of steel bar parts and the (N + 1)th section of steel bar parts, remove the Nth section of steel bar parts from inside the assembly jig, and transport them to the pier construction site; S5. Lower the (N + 1)th section of steel bar parts, bind the (N + 2)th section of steel bar parts on the (N + 1)th section of steel bar parts according to the above steps, and proceed in sequence until all steel bar parts are fabricated; The method for arranging the assembly jig in step S1 includes: laying tracks, installing a walking platform on the tracks, arranging an external climbing frame outside the walking platform, and arranging an internal climbing frame inside the external climbing frame to complete the arrangement of the assembly jig; The method for arranging the main steel bars of the (N + 1)th section of steel bar parts inside the assembly jig in step S3 includes: installing a support rod on the top of the external climbing frame, installing a positioning plate for the main steel bars of the (N + 1)th section on the support rod, using the support frame on the external climbing frame to hoist the internal climbing frame to the construction position for binding the (N + 1)th section of steel bars, inserting the main steel bars of the (N + 1)th section into the positioning holes of the positioning plate for the main steel bars of the (N + 1)th section, and connecting the lower end of the main steel bars of the (N + 1)th section with the upper end of the main steel bars of the Nth section through threaded sleeves.

2. The method for fabricating a vertically integrated steel bar component of a bridge pier according to claim 1, characterized in that: When N is 1, the method for binding the Nth section of steel bar parts inside the assembly jig in step S2 includes: arranging multiple layers of positioning plates for the main steel bars of the Nth section on the walking platform, the multiple layers of positioning plates for the main steel bars of the Nth section are arranged at intervals in the height direction, inserting the main steel bars of the Nth section into the positioning holes of the multiple layers of positioning plates for the main steel bars of the Nth section, and making the ends of adjacent main steel bars of the Nth section stagger in the height direction, binding stirrups and hook bars on the main steel bars of the Nth section to complete the binding and fabrication of the Nth section of steel bar parts.

3. The method for matching and fabricating the vertical integral steel bar component of a bridge pier shaft according to claim 2, characterized in that: When N is 1, the method for making the ends of adjacent main steel bars of the Nth section stagger in the height direction includes: pre - placing cushion blocks on the walking platform, the cushion blocks corresponding to the main steel bars of the Nth section that protrude among the stagger - arranged main steel bars of the Nth section, and then sequentially inserting the main steel bars of the Nth section into the positioning holes of the positioning plates for the main steel bars of the Nth section, making the lower ends of some main steel bars of the Nth section support on the cushion blocks on the walking platform to form a protruding state, and staggering with the ends of adjacent main steel bars of the Nth section in the height direction.

4. A method for matching and fabricating the vertical integral steel bar components of a bridge pier shaft, as described in claim 1, characterized in that: The method for connecting the lower end of the main steel bars of the (N + 1)th section with the upper end of the main steel bars of the Nth section through threaded sleeves includes: pre - sleeving a spiral sleeve on the upper end of the main steel bars of the Nth section, when arranging the main steel bars of the (N + 1)th section, screwing the lower end of the main steel bars of the (N + 1)th section into the threaded sleeve for 2 - 3 threads.

5. The method for fabricating the vertical integral steel bar component of a bridge pier according to claim 4, characterized in that: The method for releasing the threaded sleeve connection between the Nth section of steel bar parts and the (N + 1)th section of steel bar parts in step S4 includes: screwing the threaded sleeve to the main steel bars of the Nth section to release the connection between the threaded sleeve and the main steel bars of the (N + 1)th section, and vertically lifting the (N + 1)th section of steel bar parts upward through the lifting device on the external climbing frame to completely separate the (N + 1)th section of steel bar parts from the Nth section of steel bar parts.

6. A method for fabricating a vertically integrated steel bar component of a bridge pier shaft according to any one of claims 1 to 5, characterized in that: The method for transporting the Nth section of steel bar components out of the assembled tire rack in step S4 includes: opening the side door on the external climbing frame, and driving the walking platform along the track to transport the Nth section of steel bar components out of the side door of the assembled tire rack.

7. The method for fabricating the vertical integral steel bar component of a bridge pier as claimed in claim 6, wherein: The method for lowering the (N + 1)th section of steel bar components in step S5 includes: after the Nth section of steel bar components on the walking platform is transported away, driving the walking platform back into the assembled tire rack and refixing it at the initial position, and then lowering the (N + 1)th section of steel bar components onto the walking platform.

8. The method for fabricating the vertical integral steel bar component of a bridge pier according to claim 2, characterized in that: The method for binding stirrups and hook bars to the Nth main bar includes: arranging stirrup positioning comb plates at the four corners of the installation space of the Nth section of steel bar components on the walking platform, clamping the stirrups into the stirrup positioning comb plates, then welding the contact points between the Nth main bar and the stirrups, and sequentially installing the outer cavity stirrups, inner cavity stirrups and hook bars.

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