Method for processing precast beam reinforcement cage

Abstract

The application discloses a prefabricated beam steel reinforcement framework processing method, which divides box beam steel reinforcement frameworks into four modules of top plate steel reinforcement, left and right web plate steel reinforcement and bottom plate steel reinforcement; each module is connected through "numerical control straightening + numerical control bending center"; longitudinal reinforcement and transverse stirrup are automatically distributed; after being integrally welded into a mesh shape, the whole is bent and formed; the web plate and the bottom plate module form a design angle through a hydraulic platform; short longitudinal reinforcement at the intersection is manually inserted and bound; the bottom web plate module is quickly assembled; after the bottom web plate assembly is completed, the whole is hoisted to a movable bottom die trolley, enters a concrete pouring station, a hydraulic system is started to combine side molds, inner molds and end molds are installed, finally, the top plate steel reinforcement is hoisted as a whole, and the prefabricated box beam steel reinforcement framework installation is completed. The application realizes modularization and standardization of the prefabricated box beam steel reinforcement framework, realizes rapid forming, improves the prefabricated box beam steel reinforcement processing and installation efficiency, guarantees engineering quality, and has remarkable economic and social benefits.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of highway construction, and particularly relates to a prefabricated beam steel reinforcement framework processing method. BACKGROUND

[0002] The prefabricated box beam of a highway is a relatively mature construction technology in the field of highway construction at present. The conventional prefabricated box beam steel reinforcement framework is constructed by using a binding jig frame, and it generally takes 10 hours for 6 workers to complete the processing of one set of steel reinforcement framework, the construction efficiency is low, the steel binding jig frame occupies a large area, and positioning and welding are both performed by manual work, the degree of intelligence is low, and the box beam cannot meet the requirements of large base and tight construction period. SUMMARY

[0003] In order to overcome the technical defects of low degree of intelligence and low construction efficiency of manual binding of the prefabricated box beam steel reinforcement framework in the prior art, the application provides a prefabricated beam steel reinforcement framework processing method, each process is a standardized flow operation, easy to connect, and the processing and installation are both performed by using customized equipment, so that the installation precision is high, and the above technical problems are solved.

[0004] A prefabricated beam steel reinforcement framework processing method, the processing method comprising the following steps:

[0005] S1: the box beam steel reinforcement framework is divided into four modules of top plate steel reinforcement, left web plate steel reinforcement, right web plate steel reinforcement and bottom plate steel reinforcement;

[0006] S2: the top plate steel reinforcement, the left web plate steel reinforcement, the right web plate steel reinforcement and the bottom plate steel reinforcement are all formed by netting type bending and welding, the bottom plate longitudinal steel reinforcement and the bottom plate transverse stirrup are automatically distributed according to the designed interval by using the numerical control straightening and numerical control bending equipment, the end of the bottom plate transverse stirrup is automatically bent to form a hook, the whole is welded to form a bottom plate steel reinforcement netting, and the above steps are repeated to complete the processing of the top plate steel reinforcement, the left web plate steel reinforcement and the right web plate steel reinforcement netting;

[0007] S3: the numerical control hydraulic equipment is used to bend the bottom plate transverse stirrup at the middle part of the bottom plate steel reinforcement netting, the size of the bottom plate transverse stirrup in the range of 3.2 m at the ends of the beam increases regularly compared with the middle position, the bottom plate transverse stirrup in the range of 3.2 m at the ends of the beam is bent individually, and is bound with the upper row of bottom plate longitudinal steel reinforcement, so that the bottom plate steel reinforcement is processed;

[0008] S4: the above steps are repeated to complete the processing of the top plate steel reinforcement, the left web plate steel reinforcement and the right web plate steel reinforcement, and the top plate steel reinforcement tensioning slot is manually processed and formed;

[0009] S5: After the left web steel bar, the right web steel bar and the bottom plate steel bar are processed and formed, hoist them to the hydraulic platform, place the stirrup and the longitudinal reinforcement in the corresponding positioning slot on the hydraulic platform, start the hydraulic system to make the left web steel bar, the right web steel bar and the bottom plate steel bar form a design angle, then manually insert and bind the first short longitudinal reinforcement at the intersection of the web and the bottom plate, and finally complete the positioning and installation of the corrugated pipe;

[0010] S6: Hoist the bottom web steel bar framework to the movable bottom die trolley, drive it into the concrete pouring station along the longitudinal track, start the hydraulic system to combine the side mold, install the inner mold plate and the end mold plate, hoist the top plate steel bar as a whole, then manually insert and bind the second short longitudinal reinforcement at the intersection of the web and the top plate, and finally complete the installation of the prefabricated box girder steel bar framework.

[0011] The prefabricated beam steel bar framework processing method has the characteristics of fast construction speed and high standardization degree.

[0012] Compared with the traditional "installing and binding at the same time" process, the welding efficiency is greatly improved, and the method has the characteristics of less labor input and high intelligent level.

[0013] The prefabricated beam steel bar framework processing method has the characteristics of fast construction speed and high standardization degree.

[0014] The prefabricated beam steel bar framework processing method has the characteristics of fast construction speed and high standardization degree.

[0015] The prefabricated beam steel bar framework processing method has the characteristics of fast construction speed and high standardization degree.

[0016] Overall, compared with the prior art, the technical scheme conceived by the present application can achieve the following beneficial effects:

[0017] 1. The prefabricated beam steel reinforcement framework processing method can greatly improve the processing and installation efficiency of the prefabricated box girder steel reinforcement framework, is especially suitable for large-volume highway prefabricated box girder construction, has simple operation, mature operation step technology, all components are modularized processing, has small operation difficulty, high mechanization degree, small amount of manual labor, low manual operation intensity and low safety risk;

[0018] 2. The processing method adopted by the present application is a standardized flow operation, easy to connect, and the processing and installation are all using customized equipment, with high installation precision, the construction efficiency is improved from the traditional "60 man-hours / set" to "12 man-hours / set", the mechanical equipment used in construction is operated by professional personnel and is regularly checked and maintained, and a full-time staff is arranged to supervise during the construction process, so that the whole construction operation is safe and orderly. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0020] Figure 1 Fig. 1 is a flowchart of the prefabricated beam steel reinforcement framework processing method of the present application;

[0021] Figure 2 Fig. 2 is a module splitting schematic diagram of the prefabricated beam steel reinforcement framework processing method of the present application;

[0022] Figure 3 Fig. 3 is a sectional view of the bottom steel mesh of the prefabricated beam steel reinforcement framework processing method of the present application;

[0023] Figure 4 Fig. 4 is a plan view of the bottom steel mesh of the prefabricated beam steel reinforcement framework processing method of the present application;

[0024] Figure 5 Fig. 5 is a bending schematic diagram of the bottom steel mesh of the prefabricated beam steel reinforcement framework processing method of the present application;

[0025] Figure 6 Fig. 6 is a bottom and web steel module assembly schematic diagram of the prefabricated beam steel reinforcement framework processing method of the present application;

[0026] Figure 7 Fig. 7 is a top plate steel module hoisting schematic diagram of the prefabricated beam steel reinforcement framework processing method of the present application;

[0027] In the figure: 1-top plate steel, 2-left web steel, 3-right web steel, 4-bottom plate steel, 5-first short longitudinal steel, 6-second short longitudinal steel, 7-bottom plate longitudinal steel, 8-bottom plate transverse stirrup, 9-bottom plate steel mesh, 10-hydraulic platform, 11-positioning clamping groove. DETAILED DESCRIPTION

[0028] As Figure 1 The flowchart of the prefabricated beam steel reinforcement framework processing method is shown in the figure, which mainly includes the following construction steps:

[0029] Step one: divide the steel reinforcement framework into four modules, i.e., top plate steel reinforcement 1, left web plate steel reinforcement 2, right web plate steel reinforcement 3 and bottom plate steel reinforcement 4, and prepare the raw materials and process the steel reinforcement in three lines, i.e., top plate, web plate and bottom plate, as shown in Figure 2 The four template splitting diagrams are shown in the figure;

[0030] Step two: first, use the numerical control straightening and numerical control bending equipment to automatically distribute the transverse stirrup and longitudinal reinforcement according to the design spacing requirements, take the bottom plate steel reinforcement 4 as an example, automatically distribute the bottom plate longitudinal reinforcement 7 and transverse stirrup 8 according to the design spacing, the stirrup spacing meets the requirements of "10 cm within 3.2 m of the box beam end and 20 cm within the middle part of the box beam", the end of the transverse stirrup 8 is automatically bent to form a hook, and is integrally welded with the bottom plate longitudinal reinforcement 7 to form a bottom plate steel reinforcement mesh 9, as shown in Figure 3 and Figure 4 The cross-sectional view and plan view of the bottom plate steel reinforcement mesh 9 are shown in the figures, and the above steps are repeated to complete the processing of the top plate steel reinforcement 1, left web plate steel reinforcement 2 and right web plate steel reinforcement 3 in turn;

[0031] Step three: use the numerical control hydraulic equipment to bend the bottom plate steel reinforcement mesh 9, the stirrup size within 23.6 m of the middle part of the box beam is consistent, and the bending point position is the same, first, the transverse stirrup 8 within this range is bent integrally, because the stirrup size within 3.2 m of the two ends of the box beam increases regularly, the transverse stirrup at the two ends of the bottom plate steel reinforcement mesh 9 is individually bent according to the design drawing, and is bound with the upper longitudinal reinforcement, the processing of the bottom plate steel reinforcement 4 is completed, and this construction step is shown in Figure 5 .

[0032] Step four: repeat the above steps to complete the processing of the left web plate steel reinforcement 2, right web plate steel reinforcement 3 and top plate steel reinforcement 1, and the top plate steel reinforcement 1 tensioning slot is manually processed and formed.

[0033] Step five: hoist the assembled and formed left web plate steel reinforcement 2, right web plate steel reinforcement 3 and bottom plate steel reinforcement 4 to the hydraulic platform 10, the positioning clamping grooves 11 on the hydraulic platform are set according to the spacing of the design longitudinal reinforcement and stirrup, so that the stirrup and longitudinal reinforcement are placed corresponding to the positioning clamping grooves 11 on the assembly platform, start the hydraulic system to form the designed bottom-web plate included angle of the left web plate steel reinforcement 2, right web plate steel reinforcement 3 and bottom plate steel reinforcement 4, then manually insert and bind the first short longitudinal reinforcement 5 at the intersection of the web plate and the bottom plate, and install the corrugated pipe positioning, complete the processing and forming of the bottom-web plate steel reinforcement framework, and effectively improve the assembly efficiency between the modules, as shown in Figure 6 The bottom-web plate steel reinforcement module assembly diagram is shown in the figure.

[0034] Step six: the bottom web reinforcement cage is hoisted to the mobile bottom mold trolley, the hoisting process is as shown in Figure 7 shown, drives into the concrete pouring position along the longitudinal track, starts the hydraulic system to combine the side mold, installs the inner mold plate and the end mold plate, hoists the top plate reinforcement 1 as a whole, and then inserts and binds the second short longitudinal reinforcement 6 at the intersection of the web and the top plate by manual operation, to complete the installation of the prefabricated box girder reinforcement cage.

Claims

1. A method of processing a reinforcement cage for a precast beam, characterized by, The processing method comprises the following steps: S1: the box girder steel reinforcement framework is divided into top plate steel reinforcement (1), left web plate steel reinforcement (2), right web plate steel reinforcement (3) and bottom plate steel reinforcement (4) four modules; S2: the top plate steel reinforcement (1), the left web plate steel reinforcement (2), the right web plate steel reinforcement (3) and the bottom plate steel reinforcement (4) are all formed by mesh type bending and welding, the bottom plate steel reinforcement (4) is automatically distributed according to the design interval by using numerical control straightening and numerical control bending equipment on the bottom plate longitudinal steel reinforcement (7) and the bottom plate transverse stirrup (8), the end of the bottom plate transverse stirrup (8) is automatically bent to form a hook, and the whole is welded to form a bottom plate steel reinforcement mesh (9), and the above steps are repeated to complete the mesh processing of the top plate steel reinforcement (1), the left web plate steel reinforcement (2) and the right web plate steel reinforcement (3); S3: the numerical control hydraulic equipment is used to bend the whole bottom plate transverse stirrup (8) in the middle part of the bottom plate steel reinforcement mesh (9), the size of the bottom plate transverse stirrup (8) in the range of 3.2m at the ends of the beam is larger than that in the middle position, the bottom plate transverse stirrup (8) in the range of 3.2m at the two ends of the bottom plate steel reinforcement mesh (9) is bent individually, and is bound with the upper row of bottom plate longitudinal steel reinforcement (7), and the bottom plate steel reinforcement (4) processing is completed; S4: the above steps are repeated to complete the processing of the top plate steel reinforcement (1), the left web plate steel reinforcement (2) and the right web plate steel reinforcement (3), and the top plate steel reinforcement (1) tensioning notch is artificially processed and formed; S5: the left web plate steel reinforcement (2), the right web plate steel reinforcement (3) and the bottom plate steel reinforcement (4) after processing are hoisted to the hydraulic platform (10), the stirrup and the longitudinal reinforcement are placed in the corresponding positioning clamping groove (11) on the hydraulic platform (10), the hydraulic system is started to make the left web plate steel reinforcement (2), the right web plate steel reinforcement (3) and the bottom plate steel reinforcement (4) form a design angle, the first short longitudinal reinforcement (5) at the intersection of the web plate and the bottom plate is inserted and bound by artificial, and finally the positioning and installation of the corrugated pipe are completed; S6: the whole bottom web plate steel reinforcement framework is hoisted to the movable bottom die trolley, is driven along the longitudinal track into the concrete pouring working position, the hydraulic system is started to close the side mold, the inner mold plate and the end mold plate are installed, the top plate steel reinforcement (1) is hoisted as a whole, the second short longitudinal reinforcement (6) at the intersection of the web plate and the top plate is inserted and bound by artificial, and the prefabricated box girder steel reinforcement framework installation is completed.

2. The method for processing the steel reinforcement cage of the precast beam according to claim 1, characterized in that, In the step S2, the numerical control straightening and numerical control bending equipment is used to automatically distribute the bottom plate transverse stirrup (8) and the longitudinal reinforcement according to the design parameters, and then the whole is welded.

3. The method of claim 1, wherein the method further comprises: In the step S2, the bottom plate transverse stirrup (8) and the longitudinal reinforcement are welded into a steel reinforcement mesh first, and then the numerical control hydraulic equipment is used to bend the whole bottom plate transverse stirrup (8).

4. The method of claim 1, wherein the method further comprises: In the step S3, the stirrup and the longitudinal reinforcement in the middle part of the bottom plate steel reinforcement mesh (9) are welded first and then bent as a whole, and the stirrup at the two end parts of the bottom plate steel reinforcement mesh (9) is bent according to the design drawing first and then bound with the longitudinal reinforcement.

5. The method of claim 1, wherein the method further comprises: In the step S5, the hydraulic platform (10) is used for integrated assembly of the left web plate steel reinforcement (2), the right web plate steel reinforcement (3) and the bottom plate steel reinforcement (4), the bottom plate transverse stirrup (8) and the longitudinal reinforcement are placed in the corresponding positioning clamping groove (11) on the assembly platform, the first short longitudinal reinforcement (5) at the intersection of the web plate and the bottom plate is inserted and bound.

6. The method of claim 1, wherein the method further comprises: The step S6 is performed after the installation of the outer hydraulic formwork, the inner hydraulic formwork and the end formwork, hoisting the roof steel bars (1), and finally binding the second short longitudinal bars (6) at the intersection of the web and the roof.

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