Reinforcement cage jig frame suitable for large-span prefabricated bent cap and mounting method thereof
By using a large-span precast cap beam reinforcement binding frame and its installation method, the problems of low efficiency and difficulty in controlling precision in traditional reinforcement binding were solved, achieving efficient and safe cap beam construction and meeting structural quality requirements.
Patent Information
- Application Number
- CN202510982648.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-16
- Publication Date
- 2025-11-21
AI Technical Summary
In traditional cantilever cap beam construction, the efficiency of rebar tying is low, the precision is difficult to control, and the construction safety is insufficient, resulting in slow construction progress and difficulty in ensuring quality.
A steel reinforcement binding frame suitable for large-span precast cap beams is adopted, which includes a base, support, hanging plates and positioning platform. It is composed of welding and bolting connections, and combined with carbon dioxide shielded welding technology to accurately weld and position the steel reinforcement, ensuring the overall binding quality of the steel reinforcement cage.
It improves the efficiency of rebar tying, ensures construction quality, shortens the construction cycle, and reduces safety hazards, making it suitable for widespread use.
Smart Images
Figure CN120984794A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application discloses a prefabricated large-span cap beam reinforcement cage jig and a mounting method thereof, and belongs to the technical field of civil engineering construction. BACKGROUND
[0002] At present, urban renewal projects are being carried out in various parts of the country, and the cap beam construction of viaducts is one of the key and difficult contents. When the lower part of the bridge is constructed to the cap beam, in order to ensure the construction progress, the cap beam framework is hoisted to the construction site after being prefabricated in the steel bar processing shed, which has the advantages of compressing the construction time, reducing the high-altitude operation and improving the safety.
[0003] In the traditional large-cantilever cap beam fabrication, the main reinforcement and stirrup during the binding of the cap beam reinforcement are all positioned and installed by manual operation, and the installation precision is low, and the thickness of the protective layer cannot be guaranteed. The cap beam framework fabricated by workers using conventional tools and self-controlling the spacing will make it difficult to control the positioning of the reinforcement. SUMMARY
[0004] The purpose of the application is to solve the problems of low efficiency and low flexibility of manual binding, and to provide a cap beam reinforcement overall binding jig and a mounting method thereof, which has the advantage of saving construction cost.
[0005] To achieve the above purpose, the application adopts the following technical scheme: A prefabricated large-span cap beam reinforcement overall binding jig, comprising a base, a support and a hanging piece and a positioning platform; the base comprises a bottom support cross beam and a bottom support vertical beam; the support comprises a steel bar end positioning plate support, a middle main reinforcement hanging piece stand support and a sleeve end positioning plate support; each support comprises a double-spliced column, an inclined support and a bottom support; the hanging piece comprises a left and right edge main reinforcement hanging piece, a lower edge main reinforcement hanging piece, an upper edge main reinforcement hanging piece, a lower edge stirrup hanging piece and a handheld stirrup hanging piece; and the positioning platform comprises a steel bar end positioning platform and a sleeve end positioning platform.
[0006] Further, the base is composed of 2 bottom support cross beams and 15 bottom support vertical beams, and the bottom support cross beam and the bottom support vertical beam are connected together by welding.
[0007] Further, the number of the supports is 15 in total, of which 13 are fixedly welded on the bottom support cross beam, and the other two are fixed on the bottom bracket by bolts according to the drawing during the first installation of the movable frame; the bottom support cross beam is fabricated in sections, the double-spliced column and the bottom support are connected together with the base support vertical beam by high-strength bolts, and the inclined support is connected with the double-spliced column by welding.
[0008] Further, the left and right edge main reinforcement hanging pieces are bolted with the double-spliced columns, the lower edge main reinforcement hanging pieces are bolted with the double-spliced columns, the upper edge main reinforcement hanging pieces are bolted with the double-spliced columns, and the lower edge stirrup hanging pieces are bolted with the double-spliced columns.
[0009] Further, the steel bar end positioning platform adopts A plates, B plates and inner corner supports as steel bar end positioning plates, the A plates, B plates and inner corner supports are connected by welding, the A plates are uniformly provided with steel bar sleeves, the steel bar sleeves are connected with the A plates by welding, the A plates are provided with limiting angle pieces and support head screws, and the limiting angle pieces are connected with the supports by welding; the sleeve end positioning platform adopts a face plate and a flange as a sleeve positioning plate, and the face plate is connected with the flange by welding.
[0010] The present application further provides a large-span prefabricated bent cap steel reinforcement whole binding jig frame installation method suitable for the large-span prefabricated bent cap steel reinforcement whole binding jig frame, which comprises the following steps: S1) after the column jig frame is assembled, the steel bar end positioning plate and the sleeve positioning plate are installed; S2) the grouting sleeve is installed, and is installed in place at one time, and the sleeve part stirrup and the draw hook are installed in place; S3) the upper row of main reinforcement is installed to place the left and right edge main reinforcement hanging pieces; S4) two rows of stirrups are installed to place the handheld stirrup hanging pieces; S5) the bottom row of main reinforcement is installed to place the lower edge main reinforcement hanging pieces and the upper edge main reinforcement hanging pieces on the side of the main reinforcement with the draw hook; S6) the vertical draw hook is installed, and the two ends of the vertical draw hook are bent from 90 degrees to 135 degrees; S7) the horizontal draw hook is installed, and the two ends of the horizontal draw hook are bent from 90 degrees to 135 degrees; S8) two-end stirrups and the vertical draw hook are all welded to the main reinforcement by carbon dioxide protective welding; S9) two-end stirrups and the horizontal draw hook are all welded to the main reinforcement by carbon dioxide protective welding; S10) the sleeve stopper, the column top steel strand lifting point and the protection layer cushion block are installed, the jack embedded bolt sleeve is adjusted and installed, and the local strengthening measures are installed.
[0011] Further, the large-span prefabricated bent cap steel reinforcement whole binding jig frame further comprises draw connecting reinforcement arranged between the base and the side main reinforcement for reinforcement.
[0012] Further, the large-span prefabricated bent cap steel reinforcement whole binding jig frame further comprises a rubber stopper ring arranged on the steel bar end positioning platform, and the stirrup is arranged against the rubber stopper ring.
[0013] The large-span prefabricated bent cap steel reinforcement whole binding jig frame provided by the present application has the following beneficial effects: the large-span prefabricated bent cap steel reinforcement whole binding jig frame provided by the present application has the advantages of simple structure, safety and reliability, improved work efficiency of large-span prefabricated bent cap steel reinforcement whole binding, guaranteed construction quality of the steel reinforcement cage, shortened construction period and suitability for popularization and use. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 Figure 1 is a schematic diagram of a large-span prefabricated cap beam reinforcement cage jig in an embodiment of the present application; Figure 2 Figure 2 is an elevation view of a large-span prefabricated cap beam reinforcement cage jig in an embodiment of the present application; Figure 3 Figure 3 is a plan view of a large-span prefabricated cap beam reinforcement cage jig in an embodiment of the present application; Figure 4 Figure 4 is a hanging piece diagram of a large-span prefabricated cap beam reinforcement cage jig in an embodiment of the present application; Figure 5 Figure 5 is a sleeve positioning plate detail view of a large-span prefabricated cap beam reinforcement cage jig in an embodiment of the present application; Figures 6-11 Figure 6 is a flow chart of a large-span prefabricated cap beam reinforcement overall binding method in an embodiment of the present application.
[0015] In the figure, the following are marked: 1, double-pinned column; 2, bottom support beam; 3, bottom support vertical beam; 4, inclined support; 5, reinforcement end positioning plate; 6, sleeve positioning plate; 7, lower edge main reinforcement hanging piece; 8, left and right edge main reinforcement hanging piece; 9, upper edge main reinforcement hanging piece; 10, handheld stirrup hanging piece; 11, A plate; 12, B plate; 13-27, support; 28, upper flange; 29, lower flange; 30, panel; 31, support head screw; 32, limiting angle piece; 33, bottom support; 34, stirrup; 35, inner corner support; 36, rubber stop grouting ring; 37, side main reinforcement; 38, bottom row main reinforcement; 39, vertical draw hook; 40, nut; 41, reinforcement sleeve; 42, horizontal draw hook; 44, grouting sleeve; 45, reinforcing steel bar; 46, tie reinforcement; 47, lower edge stirrup hanging piece. DETAILED DESCRIPTION
[0016] It should be noted that in the description of the embodiments of the present application, the terms "front, back, left, right, up, down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0017] The construction process of the application has the advantages of convenient operation, and can be directly constructed on the stable support jig after adjusting the interval of the cover beam of different sizes, without the need to set up a support on site, thereby simplifying the operation difficulty and being recyclable.
[0018] The application is improved and innovated based on the suspension type cover beam jig and the integral type hoisting and binding hoisting jig, and the advantages of the suspension type cover beam jig are absorbed, the cover beam with a plane top surface is controlled in size by the top surface, the characteristics that the movable bottom die can be used instead of the floor type bottom die are used, so that the situation that multiple bottom dies are not universal is solved, the integral type hoisting and binding hoisting jig can be divided into sections according to the vehicle transportation capacity to manufacture the cover beam steel bar binding jig, the disc type support is replaced by the large I-shaped steel, the advantages of the suspension type jig are combined, the stability of the jig is strengthened, the clamping groove is replaced by the push position clamping groove, the jig can be pushed forward and backward without affecting the downward penetration of the stirrup, and the stirrup of different widths is positioned.
[0019] Please refer to Figures 1-5 The large-span prefabricated cover beam steel reinforcement cage jig in the embodiment of the application comprises a base, a support, a hanging piece and a positioning platform.
[0020] The base comprises a bottom support beam 2 and a bottom support vertical beam 3. The support comprises a steel bar end positioning plate support, a middle main reinforcement hanging piece support and a sleeve end positioning plate support, each support comprises a double-spliced column 1, an inclined support 4 and a bottom support 33. The hanging piece comprises left and right edge main reinforcement hanging pieces 9, lower edge main reinforcement hanging pieces 7, upper edge main reinforcement hanging pieces 8, lower edge stirrup hanging pieces 47 and handheld stirrup hanging pieces 10. The positioning platform comprises a steel bar end positioning platform 5 and a sleeve end positioning platform 6.
[0021] As a preferred embodiment, the whole binding jig for the steel bars of the prefabricated large-span cover beam of the present application is suitable for the whole binding of the steel bars of the prefabricated large-span cover beam, and the base is composed of two bottom support cross beams 2 and 15 bottom support vertical beams 3, and the bottom support cross beams 2 and the bottom support vertical beams 3 are connected together by welding. The total number of the supports is 15, including 13 fixed supports (13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 27) and two movable supports (14, 26); among them, 13 supports are fixedly welded on the bottom support cross beam 2, and the other two movable frames are fixed on the base by bolts according to the drawing when they are installed for the first time; the movable supports 14 and 26 are provided with notches for easy movement, the double-pasted column 1 is provided with notches for easy connection of the hanging pieces 7, 8 and 9 with the column through nuts 40. Preferably, the bottom support cross beam 2 is made in sections, the double-pasted column 1 is connected with the base support vertical beam 3 by high-strength bolts, and the inclined support 4 is connected with the double-pasted column 1 by welding.
[0022] The hanging pieces of the present application include left and right edge main reinforcement hanging pieces 9, lower edge main reinforcement hanging pieces 7, upper edge main reinforcement hanging pieces 8, handheld stirrup hanging pieces 10 and lower edge stirrup hanging pieces 47; according to the specifications and spacing of the cantilever beam reinforcement of the design drawing, the corresponding arc-shaped clamping grooves are arranged, the reinforcement is placed in the arc-shaped clamping grooves, and the accuracy and stability of the reinforcement spacing are ensured, the double-pasted column 1 is provided with notches for easy connection of the hanging pieces 7, 8 and 9 with the column through nuts 40. Among them, the handheld stirrup hanging pieces 10 are adjusted and installed according to the position of the stirrup. As a preferred embodiment, the left and right edge main reinforcement hanging pieces 8 are bolted with the double-pasted column 1, the lower edge main reinforcement hanging pieces 7 are bolted with the double-pasted column 1, the upper edge main reinforcement hanging pieces 9 are bolted with the double-pasted column 1, and the lower edge stirrup hanging pieces 47 are bolted with the double-pasted column.
[0023] As a preferred embodiment, the steel bar end positioning platform 5 adopts A plate 11, B plate 12 and inner corner support 35 as the steel bar end positioning plate 5, the A plate 11, the B plate 12 and the inner corner support 35 are connected by welding, the A plate 11 is uniformly arranged with steel bar sleeves 41 to facilitate the installation of the steel bars; the steel bar sleeves 41 are welded with the A plate 11, the A plate 11 is provided with limiting angle pieces 32 and supporting head screws 31 to ensure that each steel bar sleeve 41 will not slide and be unstable during installation; the limiting angle pieces 32 are welded with the support; the sleeve end positioning platform 6 is composed of an upper flange 28, a lower flange 29 and a panel 30, that is, the panel and the flange are used as the sleeve positioning plate 6, and the panel and the flange are welded together. The upper flange 28, the lower flange 29 and the panel 30 are connected by bolts, the lower flange 29 is provided with a circular notch according to the position of the grouting sleeve 44, and the grouting sleeve 44 is hingedly connected with the lower flange 29.
[0024] Preferably, a circular notch is further arranged on the double-pasted column in the support 13, and the circular notch is hinged with one end of the reinforcing bar end positioning platform 5 through a pin shaft; a circular notch is further arranged on the double-pasted column in the support 27, and the circular notch is hinged with one end of the sleeve reinforcing bar end positioning platform 6 through a pin shaft.
[0025] After the whole reinforcing cage is completed, the whole reinforcing cage is completely processed and bound on the jig. The whole binding process is implemented according to the steps, and no skip processing is allowed. The whole process is measured while processing, so as to ensure that the accuracy of each processing step is controlled. The specific steps are as follows: Figures 6 to 11 S1) After the column jig is assembled and completed, the reinforcing bar end positioning plate 5 and the sleeve positioning plate 6 are installed. S2) Install the grouting sleeve, install all in one time, and install the sleeve part stirrup, draw hook to the right place. S3) Install the upper row of main reinforcement and place the left and right edge main reinforcement hanging piece 8. S4) Install two stirrups 34 and place the handheld stirrup hanging piece 10. S5) Install the bottom row of main reinforcement 38, place the lower edge main reinforcement hanging piece 7, and place the upper edge main reinforcement hanging piece 9 on the side main reinforcement 37 with a draw hook. S6) Install the vertical draw hook 39, and bend the two ends of the vertical draw hook from 90 degrees to 135 degrees. S7) Install the horizontal draw hook 42, and bend the two ends of the horizontal draw hook from 90 degrees to 135 degrees. S8) Use carbon dioxide protective welding to weld the two end stirrups 38 and the vertical draw hook 39 to the main reinforcement in place. S9) Use carbon dioxide protective welding to weld the two end stirrups 38 and the horizontal draw hook 42 to the main reinforcement in place. S10) Install the sleeve stopper, column top steel strand hanging point and protection layer cushion block, adjust the pre-buried bolt sleeve of the jack and install the local strengthening measures.
[0026] Further, the jig base is required to be installed horizontally during the jig installation and assembly process of the present application, and the accuracy is controlled within +2mm. The position of each support is required to be accurate and vertical, and the accuracy is controlled within +2mm. After the jig is installed, the whole support is measured to ensure that each frame is on the same line, so as to prevent the main reinforcement from being bent and twisted during installation.
[0027] Further, during the binding process of the column reinforcing cage, the fastening of the column reinforcing bar and the sleeve is a key control point, and it is very important to take necessary measures to ensure its firmness. In view of this situation, two measures are taken during the binding process: 1. A tie reinforcing bar 45 is arranged between the base and the side main reinforcement 37 for reinforcement. 2. A rubber stopper ring 36 is arranged on the reinforcing bar end positioning platform 5, and the stirrup 34 is arranged on the rubber stopper ring 36.
[0028] Further, the step S10 other auxiliary device, steel reinforcement framework hoisting should be by professional lifting command at the same time command gantry crane hoisting, running, falling process should be slow and smooth, the transverse error of steel reinforcement framework hoisting can be solved by the outer mold limiting, longitudinal deviation should be controlled within ± 5mm. Steel reinforcement cage is about 8.5t, adopts two 20t cranes to lift, the way of lifting frame and chain lock hanging on the outer side of the upper edge reinforcement, two positioning plates are lifted together.
[0029] It will be obvious to a person skilled in the art that, without departing from the spirit of the application or from the essential characteristics thereof, the detailed exemplary embodiments described above are subject to change in the form and details thereof and can be implemented in other specific forms. In addition, all the details can be substituted by other technically equivalent technical solutions which fulfill the same function, without thereby departing from the scope of the application. It is therefore understood that the above description is provided solely by way of example, and that modifications and improvements can be made to the application herein disclosed without for this reason only to be considered as falling outside the scope of the application. Aspects of the present application have been described in terms of specific embodiments which are intended to be illustrative only and not restrictive of the invention. Many modifications and variations of the described embodiments are possible and will be apparent to those skilled in the art. It is therefore contemplated to cover any alternatives, modifications, and variations that fall within the scope of the present application. It is intended that the following claims cover all such applications, modifications and variations as fall within the scope of the present application. In particular, claims that do not include obsolete features should be construed to cover the equivalents of those obsolete features.
Claims
1. A reinforcing steel bar whole binding jig suitable for large-span prefabricated cap beam, characterized in that, It comprises a base, a support and a hanging piece and a positioning platform; The base comprises a bottom support crossbeam (2) and a bottom support vertical beam (3); The support comprises an extended steel bar end positioning plate support, an intermediate main reinforcement hanging piece frame vertical support and a sleeve end positioning plate support; each support comprises a double-spliced column (1), an inclined support (4) and a bottom support (33); The hanging piece comprises left and right edge main reinforcement hanging pieces (9), lower edge main reinforcement hanging pieces (7), upper edge main reinforcement hanging pieces (8), lower edge stirrup hanging pieces (47) and handheld stirrup hanging pieces (10); The positioning platform comprises a steel bar end positioning platform (5) and a sleeve end positioning platform (6).
2. The whole binding jig frame for the steel reinforcement of the large-span prefabricated bent cap according to claim 1, characterized in that, The base is composed of two bottom support crossbeams (2) and 15 bottom support vertical beams (3), and the bottom support crossbeams (2) and the bottom support vertical beams (3) are connected together by welding.
3. The whole binding jig frame for the steel reinforcement of the large-span prefabricated bent cap according to claim 1, characterized in that, The total number of the supports is 15, of which 13 are fixedly welded on the bottom support crossbeams (2), and the other two are fixed on the bottom frame by bolts according to the drawing when the first installation of the movable frame is performed; the bottom support crossbeams (2) are made in sections, the double-spliced columns (1) and the bottom supports (33) are connected together with the base support vertical beams (3) by high-strength bolts, and the inclined supports (4) are connected with the double-spliced columns (1) by welding.
4. The whole binding jig frame for the steel reinforcement of the large-span prefabricated bent cap according to claim 1, characterized in that, The left and right edge main reinforcement hanging pieces (8) are bolted with the double-spliced columns (1), the lower edge main reinforcement hanging pieces (7) are bolted with the double-spliced columns (1), the upper edge main reinforcement hanging pieces (9) are bolted with the double-spliced columns (1), and the lower edge stirrup hanging pieces (47) are bolted with the double-spliced columns.
5. The whole binding jig frame for the steel reinforcement of the large-span prefabricated bent cap according to claim 1, characterized in that, The steel bar end positioning platform (5) uses an A plate (11), a B plate (12) and an inner corner support (35) as a steel bar end positioning plate (5), the A plate (11), the B plate (12) and the inner corner support (35) are connected by welding, the A plate (11) is uniformly provided with steel sleeves (41), the steel sleeves (41) are welded with the A plate (11), the A plate (11) is provided with a limiting corner piece (32) and a support head screw (31), and the limiting corner piece (32) is welded with the support; the sleeve end positioning platform (6) uses a face plate and a flange as a sleeve positioning plate (6), and the face plate is welded with the flange.
6. The method according to any one of claims 1-5, characterized in that, The method comprises the following steps: S1) after the column jig is assembled, the steel bar end positioning plate (5) and the sleeve positioning plate (6) are installed; S2) the grouting sleeves are installed in place at one time, and the sleeve parts of the stirrups and the draw hooks are installed in place; S3) the upper row of main reinforcements are installed to place the left and right edge main reinforcement hanging pieces (8); S4) two layers of stirrups (34) are installed to place the handheld stirrup hanging pieces (10); S5) the bottom row of main reinforcements (38) are installed to place the lower edge main reinforcement hanging pieces (7) and the upper edge main reinforcement hanging pieces (9) on the side main reinforcements (37) with draw hooks; S6) the vertical draw hooks (39) are installed, and the two ends of the vertical draw hooks are bent from 90 degrees to 135 degrees; S7) the horizontal draw hooks (42) are installed, and the two ends of the horizontal draw hooks are bent from 90 degrees to 135 degrees. S8) Using carbon dioxide shielded welding, both ends of the stirrup (38) and vertical pull hook (39) and the main reinforcement are welded in place; S9) Using carbon dioxide shielded welding, both ends of the stirrup (38) and horizontal pull hook (42) and the main reinforcement are welded in place; S10) Install sleeve stopper, column top steel wire hoisting point and protective layer cushion block, adjust the pre-embedded bolt sleeve of the jack and install local strengthening measures.
7. The method for installing the whole binding jig frame suitable for the steel reinforcement of the large-span prefabricated bent cap according to claim 6, characterized in that, Also includes setting tie reinforcement (45) between the base and the side main reinforcement (37) for reinforcement.
8. The method for installing the whole binding jig frame suitable for the steel reinforcement of the large-span prefabricated bent cap according to claim 6, characterized in that, Also includes setting rubber stopper ring (36) on the steel reinforcement end positioning platform (5), and making the stirrup (34) stop against the rubber stopper ring (36).