Full-spiral stirrup rectangular stand column reinforcement cage and manufacturing method

Abstract

The invention discloses a full-spiral stirrup rectangular stand column reinforcement cage and a manufacturing method, a reinforcement cage body comprises longitudinal bars and stirrups which are fixedly connected with each other, and each stirrup is formed by interweaving and hooping a large spiral stirrup forming a rectangular outer frame and small circular spiral stirrups located at the four corners of a rectangle; the method comprises the steps that S1, forming and positioning are conducted through longitudinal bars at the corners, and four circular reinforcement cages with the same diameter are manufactured through an automatic cage rolling machine; s2, the four circular reinforcement cages are sequentially assembled on the same automatic cage rolling machine according to the starting point positions of the small circular spiral stirrups, the four circular reinforcement cages occupy the corners of a rectangle respectively, and meanwhile the remaining longitudinal bars are installed on the automatic cage rolling machine; s3, large spiral stirrups are installed and welded through an automatic cage rolling machine, and a stand column reinforcement cage body is formed; and S4, opening joint bars or opposite-pull steel bars are welded and installed at the designed positions through automatic machining equipment, and manufacturing of the stand column reinforcement cage is completed. The vertical column reinforcement cage adopts the spiral stirrups and can be manufactured through automatic machining equipment, the manufacturing time of the reinforcement cage is shortened, the labor intensity of workers is reduced, the production efficiency is greatly improved, and the vertical column reinforcement cage has good economic benefits, scientific and technological benefits and social benefits and is worthy of application and popularization.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal and highway bridge construction, and particularly relates to a full-spiral stirrup rectangular column steel cage and a manufacturing method thereof. Background Art

[0002] The steel bars of municipal and highway bridge columns are mainly composed of longitudinal bars and stirrups. For the construction of steel cages, the traditional method is that workers use steel processing equipment to cut and bend the steel bars according to the requirements of the design drawings, and then assemble the main bars and stirrups into a cage structure by wire tying or welding. Due to the complex construction process, it is currently impossible to completely replace manual labor to complete the steel cage tying with automated processing equipment, resulting in low production efficiency. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a full spiral stirrup rectangular column steel cage and a manufacturing method to solve the deficiencies in the prior art.

[0004] In order to achieve the above object, the present invention is achieved through the following technical solutions:

[0005] A fully spirally hoop-reinforced rectangular column steel cage is provided, which includes a steel cage body, wherein the steel cage body includes longitudinal bars and stirrups fixedly connected to each other, the stirrups are formed by a large spiral stirrup forming a rectangular outer frame and small circular spiral stirrups located at the four corners of the rectangle, which are interwoven and hooped together, the longitudinal bars are evenly distributed on the rectangular outer frame, and the extension direction of the longitudinal bars is the same as the extension direction of the central axis of the small circular spiral stirrups.

[0006] As described in the fully spirally reinforced rectangular column steel cage, wherein the longitudinal reinforcement located between two adjacent small circular spiral stirrups is provided with open dowel bars or tension steel bars.

[0007] In addition, a method for manufacturing a full spiral stirrup rectangular column steel cage is provided, which is used to manufacture the full spiral stirrup rectangular column steel cage, and includes:

[0008] S1. Relying on the longitudinal reinforcement at the corner position for forming and positioning, four circular reinforcement cages with the same diameter are made using an automated cage rolling machine;

[0009] S2, assemble four circular steel cages in sequence on the same automated cage rolling machine according to the starting position of the small circular spiral stirrups, with each of the four circular steel cages occupying a corner of a rectangle, and install the remaining longitudinal bars on the automated cage rolling machine;

[0010] S3. Use an automated cage rolling machine to install and weld large spiral stirrups to form the main body of the column reinforcement cage;

[0011] S4. Use automated processing equipment to weld and install open dowel bars or tension bars at the designed position to complete the production of the column reinforcement cage.

[0012] As described in the method for manufacturing a fully spirally reinforced rectangular column steel cage, in step S1, the starting positions of the circular spiral stirrups of the four circular steel cages are staggered by one quarter of the pitch in sequence.

[0013] As described in the method for manufacturing a fully spirally reinforced rectangular column steel cage, in step S2, four circular steel cages are assembled in sequence according to the starting positions of the spiral stirrups, leaving space for the installation of large spiral steel bars.

[0014] The beneficial effects of the technical solution of the present invention are:

[0015] The column steel cage adopts spiral stirrups and can be produced through automated processing equipment, which reduces the production time of the steel cage, reduces the labor intensity of workers, and greatly improves production efficiency. It has good economic, scientific and technological and social benefits and is worthy of promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To further illustrate the above-mentioned objectives, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Figure 1 A plan view of a preferred embodiment of the present invention;

[0018] Figure 2 A stereogram of a preferred embodiment of the present invention;

[0019] Figure 3 It is a plan layout diagram of another preferred embodiment of the present invention;

[0020] Figure 4 It is a three-dimensional diagram of another preferred embodiment of the present invention;

[0021] In the figure: 1. Longitudinal reinforcement; 2. Large spiral stirrups; 3. Small circular spiral stirrups; 4. Open dowel bars; 5. Tensile reinforcement. DETAILED DESCRIPTION

[0022] The terms "invention", "present invention" and "the present invention" used in this specification are intended to refer broadly to all subject matter of this specification and any patent claims below. Statements containing these terms should not be understood to limit the subject matter described herein or to limit the meaning or scope of any patent claim below. In addition, this specification does not attempt to describe or limit the subject matter covered by any claim of any specific component, paragraph, statement or figure of this application. The subject matter should be understood with reference to the entire specification, all drawings and any claims below. The present invention may have other embodiments and be practiced or implemented in other ways. Moreover, it should be understood that the words and terms used herein are for illustrative purposes and should not be considered as limiting.

[0023] The details of the present invention will now be discussed with reference to the accompanying drawings which illustrate the present invention by way of example only. In the accompanying drawings, similar features or components may be marked with the same reference numerals.

[0024] The use of "including," "having," and "comprising" and variations thereof herein is meant to encompass the items listed thereafter and their equivalents and additional items. Although reference may be made to directions such as above, below, upward, downward, rearward, bottom, top, front, rear, etc., in describing the drawings, for convenience, reference is made relative to the drawings. These directions are not intended to literally accept or limit the present invention in any form. In addition, terms such as "first," "second," "third," etc., are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0025] See also Figures 1 to 4 As shown, in a preferred embodiment, the fully spirally reinforced rectangular column steel cage of the present invention includes a steel cage body, the steel cage body includes longitudinal bars 1 and stirrups fixedly connected to each other, the stirrups are formed by a large spiral stirrup 2 forming a rectangular outer frame and small circular spiral stirrups 3 located at the four corners of the rectangle, which are interwoven and hooped together, the longitudinal bars 1 are evenly distributed on the rectangular outer frame, and the extension direction of the longitudinal bars 1 is the same as the extension direction of the central axis of the small circular spiral stirrups 3.

[0026] The longitudinal reinforcement 1 between two adjacent small circular spiral stirrups 3 is provided with an open dowel 4 or a tension reinforcement 5. The shape of the open dowel 4 is similar to an isosceles trapezoid. Figure 1 , Figure 2 As shown, the embodiment of the tension steel bar 5 is shown in Figure 3 , Figure 4 As shown.

[0027] The method for making a full spiral stirrup rectangular column steel cage comprises the following steps:

[0028] S1. Relying on the longitudinal reinforcement at the corner position for forming and positioning, four circular reinforcement cages with the same diameter are made using an automated cage rolling machine;

[0029] S2, assemble four circular steel cages in sequence on the same automated cage rolling machine according to the starting position of the small circular spiral stirrups, with each of the four circular steel cages occupying a corner of a rectangle, and install the remaining longitudinal bars on the automated cage rolling machine;

[0030] S3. Use an automated cage rolling machine to install and weld large spiral stirrups to form the main body of the column reinforcement cage;

[0031] S4. Use automated processing equipment, such as welding robots and robotic arms, to weld and install open dowel bars or tension steel bars at the designed position to complete the production of the column steel cage.

[0032] Furthermore, in step S1, the starting positions of the circular spiral stirrups of the four circular reinforcement cages are staggered by one quarter of the pitch in sequence.

[0033] Furthermore, in step S2, four circular steel cages are assembled in sequence according to the starting positions of the spiral stirrups, leaving space for the installation of the large spiral steel bars, thereby avoiding conflicts between the installation positions of the two stirrups.

[0034] The column steel cage of the present invention adopts spiral stirrups and can be produced by automated processing equipment, which reduces the production time of the steel cage, reduces the labor intensity of workers, greatly improves production efficiency, has good economic benefits, scientific and technological benefits and social benefits, and is worthy of promotion and application.

[0035] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A full spiral stirrup rectangular column steel cage, characterized in that: It includes a steel cage main body, which includes longitudinal bars and stirrups fixedly connected to each other. The stirrups are formed by a large spiral stirrup forming a rectangular outer frame and small circular spiral stirrups located at the four corners of the rectangle, which are interwoven and hooped together. The longitudinal bars are evenly distributed on the rectangular outer frame, and the extension direction of the longitudinal bars is the same as the extension direction of the central axis of the small circular spiral stirrups.

2. The fully spirally reinforced rectangular column steel cage according to claim 1, characterized in that: The longitudinal reinforcement located between two adjacent small circular spiral stirrups is provided with an open dowel bar or a tension steel bar.

3. A method for manufacturing a fully spirally reinforced rectangular column steel cage, used to manufacture a fully spirally reinforced rectangular column steel cage as claimed in claim 1 or 2, characterized in that: include: S1. Relying on the longitudinal reinforcement at the corner position for forming and positioning, four circular reinforcement cages with the same diameter are made using an automated cage rolling machine; S2, assemble four circular steel cages on the same automated rolling cage machine in sequence according to the starting position of the small circular spiral stirrups, with each of the four circular steel cages occupying a corner of a rectangle, and install the remaining longitudinal bars on the automated rolling cage machine; S3. Use an automated cage rolling machine to install and weld large spiral stirrups to form the main body of the column reinforcement cage; S4. Use automated processing equipment to weld and install open dowel bars or tension bars at the designed position to complete the production of the column reinforcement cage.

4. The method for manufacturing a fully spirally reinforced rectangular column steel cage according to claim 3, characterized in that: In step S1, the starting points of the circular spiral stirrups of the four circular reinforcement cages are staggered by one quarter of the pitch.

5. The method for manufacturing a fully spirally reinforced rectangular column steel cage according to claim 3, characterized in that: In step S2, four circular steel cages are assembled in sequence according to the starting positions of the spiral stirrups, leaving space for the installation of large spiral steel bars.

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