Set-shaped steel mould pumping concrete ultrahigh cast-in-place vase pier construction system

Abstract

The utility model provides a set-shaped steel mould pumping concrete ultrahigh cast-in-place vase pier construction system which comprises a working table and a movable positioning power mechanism, a steel bar to be machined is placed on the working table, an adjustable positioning free wheel and a positioning free wheel which are used for fixing the steel bar are arranged on the working table, and the movable positioning power mechanism is arranged on the working table. A first positioning roller and a second positioning roller are movably arranged on the workbench, so that the first positioning roller and the second positioning roller control the reinforcing steel bar to be bent to form a prefabricated semi-finished reinforcing steel bar; the device has the characteristics of simplicity and convenience in steel bar arc bending operation, high precision, stability of a hoisting device, convenience in mounting and dismounting of a prefabricated ladder cage, convenience in binding of curved section steel bars and the like.

Description

Technical Field

[0001] This utility model relates to the field of vase-shaped pier construction, and in particular to a construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel molds and pumped concrete. Background Technology

[0002] With the rapid development of highway bridge construction and the increasing demands for harmony with the surrounding environment, aesthetic requirements are becoming more stringent. Vase-shaped piers, due to their attractive appearance, are increasingly being adopted in the design of highway bridges around cities. However, the construction speed of vase-shaped piers using traditional construction techniques is slow due to several factors: ① The irregular and complex arrangement of steel reinforcement in vase-shaped piers leads to low efficiency in traditional steel reinforcement fabrication methods; ② On-site installation of steel reinforcement is difficult, installation accuracy is hard to control, and errors are prone to occur; ③ The current conventional construction method for bridge piers is a combination of steel formwork and double-row steel pipe temporary scaffolding. Because the formwork and construction platform are independent systems, repeated installation and dismantling are required, leading to resource waste and construction delays; ④ For taller vase-shaped piers, the dense steel reinforcement inside and at the top prevents workers from entering the pier body for concrete vibration, requiring multiple pouring processes. This process is not only slow but also prone to defects such as concrete misalignment and color differences. Utility Model Content

[0003] The purpose of this utility model is to provide a standardized steel mold pumped concrete construction system for ultra-high cast-in-place vase-shaped piers that solves the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model provides a construction system for ultra-high cast-in-place vase-shaped piers using a fixed steel mold pumped concrete, including a workbench and a moving positioning power mechanism. The steel bars to be processed are placed on the workbench, and the workbench is equipped with adjustable positioning wheels and positioning wheels for fixing the steel bars. A first positioning roller and a second positioning roller are movable on the workbench so that the first positioning roller and the second positioning roller control the bending of the steel bars to form prefabricated semi-finished steel bars.

[0005] Furthermore, the bottom of the precast semi-finished steel bars is connected to the support legs and diagonal braces. Adjacent support legs are fixed by diagonal braces, which are arranged in a crisscross pattern, and support legs are provided at the intersection of the diagonal braces.

[0006] Furthermore, it also includes an improved overall hoisting device for reinforcing cages. The improved overall hoisting device for reinforcing cages includes guy ropes installed on the main body of the vase pier. The object to be hoisted is fixed to the lifting rod by a fixed cable and a fixed rod. The two ends of the fixed rod and the lifting rod are connected between two guy ropes by lifting rings so that the object to be hoisted can be transported along the direction of the guy ropes.

[0007] Furthermore, it also includes a prefabricated ladder cage operating platform, which is installed between the lower support and the upper support. The lower support is provided with embedded parts for fixing the pier body, and the uprights, horizontal tie rods and diagonal tie rods are connected to the outer periphery of the pier body by disc-type buckles to form the skeleton of the prefabricated ladder cage operating platform.

[0008] Furthermore, the workbench is provided with a support rail, on which a movable positioning roller bracket is provided, and the adjustable positioning roller is fixed to the movable positioning roller bracket by a pin.

[0009] Furthermore, the mobile positioning power mechanism includes several rotating feeding rollers and pressing rollers. The feeding rollers and pressing rollers are fixed on both sides of the steel bar to be processed. The pressing rollers are fixed on the pressing roller bracket. A hydraulic cylinder and a hydraulic cylinder bracket are fixed at the lower part of the pressing roller bracket. A limiting mechanism that can extend horizontally is provided on the upper part of the worktable. The limiting mechanism is located on the upper side of the steel bar to be processed and is used to limit the position of the steel bar.

[0010] Furthermore, a support plate is provided on one side of the adjustable positioning wheel on the worktable, and an adjusting rod is movably provided on the support plate. An adjusting nut is sleeved on one side of the adjusting rod, and the adjusting rod and the adjusting nut are threaded together so that the adjusting nut positions the adjusting rod.

[0011] Furthermore, the upper part of the guy rope is fixed to the upper part of the vase-shaped pier, and the lower end of the guy rope is suspended by a counterweight to make the guy rope vertical; the fixed sling is connected to the fixed rod and the lifting rod through a lifting ring, and the other end of the fixed sling is connected to the object being lifted through a lifting ring.

[0012] Furthermore, the lower support and the cantilevered bottom of the prefabricated ladder cage operating platform are connected and fixed by diagonal bracing; the prefabricated ladder cage operating platform has a ladder, and the two ends of the diagonal tie rod are connected to the ends of two horizontal tie rods of different heights; the top of the upright is equipped with a protective plate, the upper support is equipped with a support railing, the support railing is fixed to the upper support by a horizontal connecting rod, the bottom of the upright is equipped with several adjustable base supports, and the top of all uprights is equipped with adjustable top supports.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) During the processing of steel bars, the curvature of the steel bars can be preset by continuous bending. After one bending, the curvature of the next reverse bending can be set directly, which improves the processing accuracy and efficiency of steel bars. At the same time, the upper platform of the bending machine is equipped with a limiting device to prevent the steel bars from coming out during the bending process.

[0015] (2) The adoption of the improved steel cage hoisting device ensures the vertical stability of the steel cage during hoisting, eliminates the need for manual tensioning of the guy ropes, reduces labor costs, improves wind resistance and stability, and helps to improve construction efficiency.

[0016] (3) The prefabricated ladder cage operating platform is adopted. The components are standardized, which facilitates transportation and management. The prefabricated structure has no loose and easily lost components, resulting in low loss. The cost of each assembly and disassembly is half that of other types of ladders. It can be hoisted as a whole, which greatly improves construction efficiency, increases the reuse rate, and has significant comprehensive benefits. Attached Figure Description

[0017] Figure 1 This is a top view of the continuous bending machine.

[0018] Figure 2 This is a schematic diagram of the transverse cross-sectional structure of the overall binding frame.

[0019] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of the overall binding frame.

[0020] Figure 4 This is a top view of the integral vase-shaped support frame template.

[0021] Figure 5 A schematic diagram of the main view structure of the improved overall hoisting device for steel cages.

[0022] Figure 6 This is a schematic diagram of the side elevation structure of the prefabricated ladder cage operating platform.

[0023] In the diagram: 1-Operating platform; 2-Positioning roller; 3-Adjustable positioning roller; 4-First moving positioning roller; 5-Second moving positioning roller; 6-Support track; 7-Moving positioning roller support; 8-Support plate; 9-Adjusting rod; 10-Adjusting nut; 11-Feeding roller; 12-Pressure roller; 13-Pressure roller support; 14-Hydraulic cylinder; 15-Hydraulic cylinder support; 16-Restriction structure; 17-Outrigger; 18-Diagonal brace; 19-Outrigger support; 20-Integral rigid template; 21-Angle tie rod; 22-Vase-shaped pier panel template; 23 - Vertical stiffening rib; 24- Horizontal rib; 25- Guy rope; 26- Fixing rod; 27- Fixing lock; 28- Lifting ring; 29- Counterweight; 30- Lifting rod; 31- Lifting rope; 32- Lifted object; 33- Safety rope; 34- Upper support; 35- Lower support; 36- Prefabricated ladder cage operating platform; 37- Ladder; 38- Upright pole; 39- Horizontal tie rod; 40- Diagonal tie rod; 41- Buckle; 42- Protective plate; 43- Support railing; 44- Horizontal connecting rod; 45- Adjustable bottom support; 46- Adjustable top support; 47- Diagonal brace. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0025] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0026] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0027] like Figures 1-6 The present invention provides a construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel mold pumped concrete, which can be implemented through the following steps:

[0028] S1. Pre-processing of reinforcing bars using a continuous bending machine: The reinforcing bars to be processed are placed on the workbench 1. After being fixed by adjustable positioning rollers 3 and 2, the first positioning roller 4 and the second positioning roller 5 act on the reinforcing bars to be bent according to the original bending arc. After reaching the given arc requirement, the reinforcing bars are bent in the opposite direction by applying the second positioning roller 5 or the first moving positioning roller 4 to the reinforcing bars to be bent in the opposite direction. When the required arc is reached and a pre-fabricated semi-finished reinforcing bar is formed, the moving positioning power mechanism stops operating. This achieves automated multi-segment bending of reinforcing bars.

[0029] The continuous bending machine's worktable is equipped with a support rail 6, and the support rail 6 has a movable positioning roller bracket 7. The adjustable positioning roller 3 is fixed to the movable positioning roller bracket 7 by a pin. The moving positioning power mechanism includes several rotating feeding rollers 11 and pressing rollers 12. The feeding rollers 11 and pressing rollers 12 are fixed to both sides of the rebar to be processed. The pressing rollers 12 are fixed to the pressing roller bracket 13. A hydraulic cylinder 14 and a hydraulic cylinder bracket 15 are fixed to the lower part of the pressing roller bracket 13. The upper part of the platform is equipped with a horizontally extending limiting mechanism 16. The limiting mechanism 16 is located above the rebar to be processed and is used to limit the position of the rebar to prevent it from coming off upwards.

[0030] The workbench 1 has a support plate 8 on one side of the adjustable positioning wheel 3. An adjusting rod 9 is movably mounted on the support plate 8. An adjusting nut 10 is fitted on one side of the adjusting rod 9, and the adjusting rod 9 and the adjusting nut 10 are threaded together so that the adjusting nut 10 positions the adjusting rod 9, thereby ensuring the stable positioning of the adjustable positioning wheel 3 on the reinforcing bar.

[0031] Specifically, after the adjustable positioning roller 3 and positioning roller 2 have positioned the reinforcing bar, the first positioning roller 4 and the second positioning roller 5 move to push the reinforcing bar, causing the reinforcing bar to bend to one side, so as to control the bending angle and direction of the reinforcing bar. The first positioning roller 4 and the second positioning roller 5 can be controlled by a hydraulic cylinder to move.

[0032] S2. Design and fabricate the overall binding frame for the pier reinforcement: Process and weld the prefabricated semi-finished steel bars according to the drawings. First, weld the support leg 17 to the diagonal brace 18. Weld the support leg 17 to the diagonal brace 18 in sequence according to the diagonal principle. Then arrange the horizontal and vertical spacing of the support leg 17 and start welding the reinforcement bars in different directions. The frame structure is then completed.

[0033] The pier reinforcement integral binding frame includes several legs 17 and diagonal braces 18. The legs 17 are evenly spaced in the horizontal and vertical directions to form a support structure. The legs descend at the same height in the longitudinal direction, and their stroke matches the curvature of the pier column. Adjacent legs in the longitudinal and horizontal directions are reinforced and fixed by diagonal braces 18. The diagonal braces 18 are arranged in a crisscross pattern, and a leg support part 19 is set at the intersection of the diagonal braces 18.

[0034] S3. Accurately lay out the axis and outline of the pier body, and tie the pre-embedded steel bars of the pier body: The pier body formwork adopts the integral rigid formwork 20, and the interior of the integral rigid formwork 20 is covered with waterproof formwork cloth. The front and side formwork is tightened by 32 diagonal tie rods 21; the vase pier panel formwork 22 adopts ordinary 6mm steel plate, the vertical stiffening ribs 23 adopt 12mm channel steel, and the horizontal ribs 24 adopt 25mm channel steel.

[0035] The integral rigid formwork is divided into 20 blocks according to the cross-sectional shape, and the overall structural form is a stiffened panel back truss. The upper and lower layers of formwork are connected by positioning pins, and the front formwork and the side formwork are tightened at both ends by Φ32mm diagonal tie rods 21.

[0036] S4. Improved overall hoisting device for steel cage: First, install guy ropes 25 on the main body of the vase pier; the hoisting object 32 is fixed to the lifting rod 30 by the fixed cable 27 and the fixed rod 26. The two ends of the fixed rod 26 and the lifting rod 30 are connected between the two guy ropes 25 by the lifting rings 28 so that the hoisting object 32 can be transported along the direction of the guy ropes 25; finally, connect the lifting rod 30 and the lifting rope 31 to the hoisting equipment for hoisting operation.

[0037] The improved steel cage hoisting device includes guy ropes 25, fixed rods 26, fixed slings 27, lifting rings 28, counterweights 29, lifting rods 30, and lifting ropes 31. The upper parts of the two guy ropes 25 are fixed to the upper part of the vase-shaped pier, and the lower ends of the two guy ropes 25 are suspended from the counterweights 29, making the guy ropes 25 vertical. The fixed slings 27 are connected to the fixed rods 26 and the lifting rods 30 through the lifting rings 28, and the other end of the fixed slings 27 is connected to the hoisting object 32 through the lifting rings 28.

[0038] The connection between the lifting boom 30 and the lifting rope 31 is connected to the connection between the fixed sling 27 and the hoisting object 32 via a safety rope 33, so as to improve the hoisting stability of the hoisting object 32.

[0039] S5. Fabrication and Installation of Prefabricated Cage Operating Platform 36: The prefabricated cage platform is installed between the lower support 35 and the upper support 34. First, embedded parts are arranged on the lower support 35, then the pier body is fixed. Next, protective plates 42 are installed to form the prefabricated cage operating platform 36. The uprights 38, horizontal tie rods 39, and diagonal tie rods 40 are connected to the outer perimeter of the pier body using disc-type buckles 41 to form the skeleton of the prefabricated cage operating platform 36. Finally, the construction of the prefabricated cage operating platform 36 is completed.

[0040] The lower support 35 and the cantilevered bottom of the prefabricated ladder cage operating platform 36 are connected and fixed by diagonal bracing 47. The prefabricated ladder cage operating platform 36 contains a ladder 37 and also includes uprights 38 installed on the lower support 35. Several parallel horizontal tie rods 39 and diagonal tie rods 40 are provided between adjacent uprights 38. The two ends of the diagonal tie rods 40 are connected to the ends of two horizontal tie rods 39 at different heights. The top of the uprights 38 is provided with a protective plate 42, and the upper support 34 is provided with a support railing 43. The support railing 43 is fixed to the upper support 34 by a horizontal connecting rod 44. The bottom of the uprights 38 is provided with several adjustable base supports 45, and the top of all uprights 38 is provided with an adjustable top support 46.

[0041] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel molds and pumped concrete, characterized in that: The device includes a workbench (1) and a moving positioning power mechanism. The steel bars to be processed are placed on the workbench (1). The workbench (1) is equipped with adjustable positioning wheels (3) and positioning wheels (2) for fixing the steel bars. The workbench (1) is equipped with a first positioning roller (4) and a second positioning roller (5) so that the first positioning roller (4) and the second positioning roller (5) control the steel bars to bend and form prefabricated semi-finished steel bars.

2. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel formwork pumped concrete as described in claim 1, characterized in that: The bottom of the precast semi-finished steel bar is connected to the support leg (17) and the diagonal brace (18). Adjacent supports are fixed by the diagonal brace (18). The diagonal braces (18) are arranged in a cross pattern, and the support leg support part (19) is set at the intersection of the diagonal braces (18).

3. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel formwork pumped concrete as described in claim 1, characterized in that: It also includes an improved steel cage hoisting device, which includes guy ropes (25) installed on the main body of the vase pier. The hoisting object (32) is fixed to the lifting rod (30) by a fixed cable (27) and a fixed rod (26). The two ends of the fixed rod (26) and the lifting rod (30) are connected between the two guy ropes (25) by a lifting ring (28) so that the hoisting object (32) can be transported along the direction of the guy ropes (25).

4. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel mold pumped concrete as described in claim 1, characterized in that: It also includes a prefabricated ladder cage operating platform (36), which is installed between the lower support (35) and the upper support (34). The lower support (35) is provided with embedded parts for fixing the pier body, and the uprights (38), horizontal tie rods (39) and diagonal tie rods (40) are connected to the outer periphery of the pier body through disc-type buckles (41) to form the skeleton of the prefabricated ladder cage operating platform (36).

5. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel formwork pumped concrete as described in claim 1, characterized in that: The workbench (1) is provided with a support rail (6), and a movable positioning roller bracket (7) is provided on the support rail (6). The adjustable positioning roller (3) and the movable positioning roller bracket (7) are fixed by a pin.

6. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel mold pumped concrete as described in claim 1, characterized in that: The moving positioning power mechanism includes several rotating feeding rollers (11) and pressing rollers (12). The feeding rollers (11) and pressing rollers (12) are fixed on both sides of the steel bar to be processed. The pressing rollers (12) are fixed on the pressing roller bracket (13). The pressing roller bracket (13) has a hydraulic cylinder (14) and a hydraulic cylinder bracket (15) fixed at the lower part. The upper part of the worktable (1) is provided with a limiting mechanism (16) that can extend in the horizontal direction. The limiting mechanism (16) is located on the upper side of the steel bar to be processed and is used to limit the position of the steel bar.

7. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel formwork pumped concrete as described in claim 1, characterized in that: A support plate (8) is provided on one side of the adjustable positioning wheel (3) on the workbench (1). An adjusting rod (9) is movably provided on the support plate (8). An adjusting nut (10) is sleeved on one side of the adjusting rod (9), and the adjusting rod (9) and the adjusting nut (10) are threaded together so that the adjusting nut (10) positions the adjusting rod (9).

8. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel mold pumped concrete as described in claim 3, characterized in that: The upper part of the guy rope (25) is fixed to the upper part of the vase pier, and the lower end of the guy rope (25) is suspended by a counterweight (29) to make the guy rope (25) vertical; the fixed sling (27) is connected to the fixed rod (26) and the lifting rod (30) through the lifting ring (28), and the other end of the fixed sling (27) is connected to the object being lifted (32) through the lifting ring (28).

9. The construction system for ultra-high cast-in-place vase-shaped piers using prefabricated steel mold pumped concrete as described in claim 4, characterized in that: The lower support (35) and the cantilevered bottom of the prefabricated ladder cage operating platform (36) are connected and fixed by diagonal bracing (47); the prefabricated ladder cage operating platform (36) has a ladder (37) inside, and the two ends of the diagonal tie rod (40) are connected to the ends of two horizontal tie rods (39) of different heights; the top of the upright (38) is provided with a protective plate (42), the upper support (34) is provided with a support railing (43), the support railing (43) and the upper support (34) are fixed by a horizontal connecting rod (44), the bottom of the upright (38) is provided with several adjustable base supports (45), and the top of all uprights (38) is provided with an adjustable top support (46).

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