CN114961108B

CN114961108B - Reinforcement cage

Info

Publication number: CN114961108B
Application number: CN202110209507.8A
Authority: CN
Inventors: 尹衍樑; 王瑞祯; 魏彰延; 陈智轩
Original assignee: Ruentex Engineering and Construction Co Ltd
Current assignee: Ruentex Engineering and Construction Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2024-08-09
Anticipated expiration: 2041-02-24
Also published as: CN114961108A

Abstract

The invention provides a reinforcement cage, which comprises: a continuous stirrup defined with two opposite side regions and a middle region therebetween, and comprising: a plurality of first portions extending in the Z-axis direction, the plurality of first portions being located in both side edge regions; a plurality of second portions connecting the adjacent two of the plurality of first portions in the X-axis direction; and a plurality of third portions connecting the two plurality of first portions in the Y-axis direction, the plurality of third portions being located in the intermediate region. In addition, the continuous stirrup includes a plurality of longitudinal ribs extending in the X-axis direction and joining a plurality of first portions of the continuous stirrup.

Description

Reinforcement cage

Technical Field

The present disclosure relates to providing a reinforcement cage, and in particular to a reinforcement cage for a beam.

Background

Reinforcement cages used in buildings, such as those in beam structures, should be provided with a certain number of stirrups to prevent splitting and caving of the concrete cover. The stirrup has the function of shear strength, and is connected with the stressed longitudinal bars and the stressed concrete to make them work together, and in addition, the stirrup is used for fixing the positions of main bars so that various bars in the beam form bars of the steel bar framework. Meanwhile, the stirrup can limit the development of cracks in the concrete, improve the bonding strength, and limit the width of the cracks reaching the surface of the component, thereby improving the bonding strength.

In the preparation process of the traditional beam reinforcement cage, U-shaped plane stirrups are fixed on longitudinal ribs one by one in a welding or binding mode. However, the process of manufacturing the reinforcement cage above, which fixes a large number of stirrups one by one onto the longitudinal bars, consumes considerable manpower and time. In addition, the U-shaped planar stirrup has two upper free ends extending outwards, and in order to avoid personnel from being stabbed by the free ends due to accidents such as falling, a sheath is additionally arranged on the free ends or other protectors are covered on the free ends in the construction process. However, the addition of these protective measures is quite time consuming and additionally creates unnecessary construction costs and waste. Therefore, the steel reinforcement cage which can truly protect personnel on a construction site, is convenient to construct and saves materials is expected by the construction and construction industry.

Disclosure of Invention

Accordingly, in order to solve the above-mentioned problems, an embodiment of the present invention provides a reinforcement cage with continuous stirrups, so as to reduce the manpower and time required for fixing the stirrups on the longitudinal bars. In addition, the continuous stirrup structure does not have a free end or a tip extending outwards, so that additional jackets and protectors are not needed, and the safety of the building site can be effectively improved.

Some embodiments of the present disclosure provide a reinforcement cage, comprising: a continuous stirrup is defined having a first side region, a second side region, and a middle region between the first side region and the second side region, wherein the first side region and the second side region are respectively located on opposite sides of the middle region and are substantially parallel to each other and substantially perpendicular to the middle region. The continuous stirrup includes: a plurality of first portions extending along the Z-axis direction, the plurality of first portions being located in the first side region and the second side region and being arranged substantially in parallel; a plurality of second portions connecting adjacent two of the plurality of first portions in the X-axis direction; and a plurality of third portions connecting the two opposing first portions in the Y-axis direction, the plurality of third portions being located in the intermediate region. In addition, the continuous stirrup includes a plurality of longitudinal ribs extending in the X-axis direction and joining the plurality of first portions of the continuous stirrup.

Some embodiments of the present disclosure also provide a reinforcement cage, comprising: a continuous stirrup is defined having a first side region, a second side region, and a middle region between the first side region and the second side region, wherein the first side region and the second side region are on opposite sides of the middle region, respectively, and are substantially perpendicular to the middle region. The continuous stirrup includes: a plurality of first portions extending along the Z-axis direction, the plurality of first portions being located in the first side region and the second side region and being arranged substantially in parallel; a plurality of first positioning portions joining one ends of the plurality of first portions remote from the intermediate region, the plurality of first positioning portions being curved toward an inner side of the continuous stirrup with respect to the plurality of first portions; a plurality of second positioning portions joining one ends of the plurality of second portions remote from the intermediate region, the plurality of second positioning portions being curved toward the inside of the continuous stirrup relative to the plurality of second portions; a plurality of second portions connecting adjacent two of the plurality of first portions in the X-axis direction; and a plurality of third portions connecting the two opposing first portions in the Y-axis direction, the plurality of third portions being located in the intermediate region. In addition, the continuous stirrup includes a plurality of longitudinal ribs extending in the X-axis direction and joining the plurality of first portions of the continuous stirrup.

Drawings

Fig. 1 shows a schematic structural view of a reinforcement cage according to an embodiment of the present disclosure.

Fig. 2 shows a planar structure for making the reinforcement cage of fig. 1.

Fig. 3 shows a continuous stirrup formed by bending the planar structure of fig. 2.

Fig. 4 is a graph showing performance tests of a reinforcement cage according to an embodiment of the present disclosure and a reinforcement cage of a control group

Fig. 5 shows a schematic structural view of a reinforcement cage according to another embodiment of the present disclosure.

Fig. 6 shows a planar structure for making a reinforcement cage according to another embodiment of the present disclosure.

Fig. 7 shows a schematic view of the planar structure of fig. 6 after partial machining.

Fig. 8 shows a second schematic view of the structure of fig. 7 further processed to form a continuous stirrup.

Fig. 9 shows a planar structure for making a cap for a reinforcement cage according to another embodiment of the present disclosure.

Fig. 10 shows a schematic structural view of a cap according to another embodiment of the present disclosure.

Fig. 11 shows a schematic diagram one of assembling a cap in the further embodiment of the present disclosure to the continuous stirrup to form a reinforcement cage.

Fig. 12 shows a second schematic view of the assembly of a cap in the further embodiment of the present disclosure to the continuous stirrup to form a reinforcement cage.

Fig. 13 shows a schematic diagram III of the assembly of a cap in the further embodiment of the present disclosure to the continuous stirrup to form a reinforcement cage.

Detailed Description

For a clearer understanding of the features, contents and advantages of the present invention and the effects thereof, the present invention will be described in detail below with reference to the accompanying drawings and expressed in terms of embodiments, wherein the drawings are used for illustration and for assisting the description only, and therefore the appended drawings should not be construed as limiting the claims of the present invention with respect to the scale and configuration of the drawings.

The terms "a" or "an" are used herein to describe the elements and components of the subject innovation. This terminology is for the convenience of description only and gives the basic idea of the present creation. This description should be read to include one or at least one and, unless expressly stated otherwise, reference to the singular also includes the plural. In the claims, the terms "a" and "an" when used in conjunction with the word "comprising" may mean one or more than one. Furthermore, the term "or" is used herein to mean "and/or".

Unless otherwise specified, spatial descriptions such as "above," "below," "upward," "left," "right," "downward," "body," "base," "vertical," "horizontal," "side," "upper," "lower," "upper," "above," "below," and the like are indicated with respect to the directions shown in the figures. It should be understood that the spatial descriptions used herein are for illustrative purposes only, and that the actual implementation of the structures described herein may be spatially arranged in any relative direction, without this limitation altering the advantages of the embodiments of the present invention. For example, in the description of some embodiments, an element provided "on" another element may encompass the situation in which the previous element is directly on (e.g., in physical contact with) the next element as well as the situation in which one or more intervening elements are located between the previous element and the next element.

As used herein, the terms "substantially," "essentially," "substantially," and "about" are used to describe and contemplate minor variations. When used in connection with an event or circumstance, the terms can mean that the event or circumstance happens explicitly, and that the event or circumstance is very close to that of it.

Fig. 1 shows a schematic structural view of a reinforcement cage according to an embodiment of the present disclosure. In this embodiment, the reinforcement cage 1 includes a continuous stirrup 100 and a plurality of longitudinal ribs 150. The continuous stirrup 100 is a three-dimensional structure of bent steel bars, having a first lateral zone 101, a second lateral zone 102, and a central zone 103. The middle region 103 is interposed between the first side region 101 and the second side region 102, wherein the first side region 101 and the second side region 102 are located on opposite sides of the middle region 103, respectively, and are substantially perpendicular to the middle region 103.

The continuous stirrup 100 is formed by connecting a plurality of sections bent over each other. In one embodiment, the continuous stirrup 100 includes a plurality of first sections 110, a plurality of second sections 120, and a plurality of third sections 130. The plurality of first portions 110 are located in the first side region 101 and the second side region 102, and extend in the Z-axis direction, and are arranged substantially parallel to each other, wherein every two first portions 110 are disposed in pairs in the Y-axis direction. The second portions 120 are staggered along the X-axis direction and configured to connect two adjacent first portions 110. In some embodiments, the two staggered second portions 120 do not overlap or substantially do not overlap in the Y-axis direction. Specifically, one end of one of the two second portions 120 that are staggered, as viewed in the Y-axis direction, may overlap one end of the other of the two second portions 120 in one embodiment and not overlap in another embodiment. The third portion 130 is located in the middle region 103, and connects the two first portions 110 opposite in the Y-axis direction along the Y-axis direction.

In some embodiments, the two free ends of the continuous stirrup 100 each include a hook 140. Each of the hooks 140 is bent from the first portion adjacent thereto in the X-axis direction. In the embodiment shown in fig. 1, the two hooks 140 are located on the same side of the continuous stirrup 100, but the disclosure is not limited thereto. In another embodiment, hooks 140 at both free ends of the continuous stirrup 100 may be located on opposite sides in the Y-axis direction, respectively. The provision of hooks 140 prevents or avoids personnel from being stabbed during construction at the construction site by touching the sharp free ends of the continuous stirrup 100. In another embodiment, the hooks 140 of the continuous stirrup 100 are omitted and the first part 110 with the two free end portions of the continuous stirrup 100 has a shorter length in the Z-axis direction than the remaining first part 110, thereby preventing or avoiding stabbing of the person.

In some embodiments, the reinforcement cage 1 includes four longitudinal ribs 150 extending in the X-axis direction, wherein two longitudinal ribs 150 are oppositely disposed in the Y-axis direction and join at the intersection of the first portion 110 and the third portion 130 of the continuous stirrup 100. The other two longitudinal ribs 150 are disposed opposite to each other in the Y-axis direction and are coupled to the plurality of second portions 120. The joining of the longitudinal ribs 150 to the continuous stirrup 100 can be accomplished via wire (not shown) tying or welding.

In some embodiments, the step of making the continuous stirrup 100 of fig. 1 includes the steps of: the long straight bars are bent to form a planar structure 100' having a plurality of vertical bends as shown in fig. 2. At this time, the first side region 101, the second side region 102, and the middle region 103 are located on the same plane. In some embodiments, the two free ends of the long and straight bars are further bent inward to form hooks 140 during the process of manufacturing the planar structure 100 'or after the planar structure 100' is manufactured.

The planar structure 100' is then bent to form the continuous stirrup 100 as shown in fig. 3. The step of bending the planar structure 100' may include supporting at least a portion of the first side region 101 with an elongated mold (not shown), and applying a pushing force to the first side region 101 with the elongated mold to bend the first side region 101 upward relative to the middle region 103. Then, at least a portion of the second side region 102 is supported by the same or another elongated mold (not shown), and a pushing force is applied to the second side region 102 by the elongated mold, so that the second side region 102 is bent upward with respect to the middle region 103 to form the continuous stirrup 100 as shown in fig. 3. At this time, the first side region 101 and the second side region 102 are located on opposite sides of the middle region 103, respectively, and are substantially parallel to each other, and are substantially perpendicular to the middle region 103.

When the reinforcement cage 1 is used at a construction site as a building structure (e.g., a trabecula that is not primarily load-bearing), the continuous stirrup 100 is placed with the side having the plurality of second portions 120 facing upward. Because the second portion 120 is disposed substantially horizontally and the junction of the second portion 120 and the first portion 110 has a rounded shape, accidental injury to personnel at the site can be prevented.

Fig. 4 shows a graph of performance tests performed on a steel reinforcement cage 1 according to an embodiment of the present invention and a conventional steel reinforcement cage of a control group. The reinforcement cage of the control group is composed of a plurality of stirrups which are separately arranged and bent into a U shape as described in the specification (prior art). As shown in fig. 4, the reinforcement cage 1 (indicated by line 51) of an embodiment of the present disclosure is capable of withstanding approximately the same external force as a control reinforcement cage (indicated by line 52) at a displacement ratio of less than about 1%. However, when the displacement ratio exceeds 1%, the reinforcement cage 1 of the present disclosure is significantly superior to that of the control group. Therefore, the reinforcement cage 1 of an embodiment of the present disclosure has a preferable capability of withstanding external force than the reinforcement cage of the control group.

Table 1 shows experimental data for reinforcement cage 1 of some embodiments of the present disclosure and reinforcement cages of the control group described above. As can be seen from the observation of table 1, the reinforcement cage 1 according to some embodiments of the present disclosure has better performance in terms of the limit load and the maximum displacement than those of the reinforcement cage of the control group, and only 85% of the material is used as compared with those of the reinforcement cage of the control group.

TABLE 1

Project	Control group	Reinforcement cage 2
			Limit load (tf)	25.03(100％)	26.79(107％)
Maximum displacement (%)	7.73(100％)	7.67(99.2％)
			Stirrup amount (%)	100％	85％

Fig. 5 shows a schematic structural view of a reinforcement cage 2 according to another embodiment of the present disclosure. The reinforcement cage 2 includes a plurality of continuous stirrups 200, a plurality of longitudinal ribs 250, and a plurality of cap structures, such as a first cap structure 310 and a second cap structure 320. The plurality of continuous stirrups 200 are arranged in sequence along the X-axis and are connected by longitudinal ribs 250 to form the desired elongated structure of the girder of the main girder. The first cap structure 310 and the second cap structure 320 are configured to straddle the continuous stirrup 200 and overlap without interfering with each other. It should be understood that, although fig. 5 only shows three continuous stirrups 200 and one first cap structure 310 and one second cap structure 320, the disclosure is not limited thereto. The number of continuous stirrups 200, first cap structure 310 and second cap structure 320 may be correspondingly increased depending on the desired design length of reinforcement cage 2.

In some embodiments of the present disclosure, the fabrication of the continuous stirrup 200 in fig. 6 includes bending long straight bars to form a planar structure 200' with multiple vertical bends, as shown in fig. 7. At this time, the first side region 201, the second side region 202, and the middle region 203 are located on the same plane. Next, the planar structure 200' is bent to form an intermediate structure 200 "having a first positioning portion 260 and a second positioning portion 270 as shown in fig. 8. For example, an elongated mold (not shown) may be used to support an end of the first side region 201 away from the middle region 203, and the elongated mold may be used to apply a pushing force to the first side region 201, so that the outer end of the first side region 201 is bent upwards. Then, the end of the second side region 202 away from the middle region 203 is supported by the same or another elongated mold (not shown), and a pushing force is applied to the second side region 202 by the elongated mold, so that the second side region 202 is bent upward relative to the middle region 203. In some embodiments, during the fabrication of intermediate structure 200", the two free ends of the long straight rebar are further bent inward to form hooks 240.

And then bending the intermediate structure 200″ shown in fig. 8 to form the continuous stirrup 200 as shown in fig. 6, comprising supporting at least a portion of the first side region 201 with an elongated mold (not shown), and applying a pushing force to the first side region 201 with the elongated mold to bend the first side region 201 upward relative to the intermediate region 203. Next, at least a portion of the second side region 202 is supported by the same or another elongated mold (not shown) and a pushing force is applied to the second side region 202 by the elongated mold, so that the second side region 202 is bent upward with respect to the middle region 203 to form the continuous stirrup 200 as shown in fig. 6. At this time, the first side region 201 and the second side region 202 are located on opposite sides of the middle region 203, respectively, and are substantially parallel to each other and substantially perpendicular to the middle region 203.

As shown in fig. 6, the continuous stirrup 200 has a first side region 201, a second side region 202, and a middle region 203. The middle region 203 is interposed between the first side region 201 and the second side region 202, wherein the first side region 201 and the second side region 202 are located on opposite sides of the middle region 203, respectively, and are substantially perpendicular to the middle region 203.

The continuous stirrup 200 is formed by connecting a plurality of bent portions, including a plurality of first portions 210, a plurality of second portions 220, a plurality of third portions 230, a plurality of first positioning portions 260, and a plurality of second positioning portions 270. The plurality of first portions 210 are located in the first side region 201 and the second side region 202. And, a plurality of the first portions 210 extend in the Z-axis direction and are arranged substantially in parallel with each other, wherein every two of the first portions 210 are disposed in pairs in the Y-axis direction. The first positioning portion 260 is located in the first side area 201 and is connected to an end of the first portion 210 located in the first side area 201 away from the middle area 203. The second positioning portion 270 is located in the second side region 202 and is connected to an end of the first portion 210 located in the second side region 202 remote from the middle region 203. The first positioning portion 260 and the second positioning portion 270 are each curved toward the inside of the continuous stirrup 200 with respect to the first portion 210 to which they are connected.

The second portions 220 are staggered along the X-axis direction and configured to connect two adjacent first positioning portions 260 or two adjacent second positioning portions 270. In some embodiments, the two staggered second portions 220 do not overlap or substantially do not overlap in the Y-axis direction. Specifically, one end of one of the two second portions 220 that are staggered in the X-axis direction may overlap one end of the other of the two second portions 220, as viewed in the Y-axis direction, in some embodiments, and may not overlap in other embodiments. The third portion 230 is located in the middle region 203 and connects the two first portions 210 opposite in the Y-axis direction along the Y-axis direction.

In some embodiments, the two free ends of the continuous stirrup 200 each include a hook 240. The hooks 240 are bent toward the inside of the continuous stirrup 200 in the Y-axis direction. In the embodiment shown in fig. 8, hooks 240 are located on opposite sides of continuous stirrup 200, but the disclosure is not limited thereto. In another embodiment, hooks 240 at both free ends of the continuous stirrup 200 may be located on the same side in the Y-axis direction, respectively. The provision of hooks 240 prevents or avoids personnel from being stabbed during construction at the construction site by touching the sharp free ends of the continuous stirrup 200. In another embodiment, the hooks 240 of the continuous stirrup 200 are omitted and the first part 210 with two free end portions is arranged to have a shorter length in the Z-axis direction than the remaining first part 210, thereby preventing or avoiding stabbing of the person.

In some embodiments, the first cap structure 310 and the second cap structure 320 in fig. 5 are each a three-dimensional structure formed by continuously bending a single stirrup. In some embodiments, the first cap structure 310 and the second cap structure 320 are fabricated by bending two long straight bars to form a planar structure 310', 320' having a plurality of vertical bends as shown in fig. 10. The step of fabricating the first cap structure 310 and the second cap structure 320 further includes bending the planar structures 310', 320' to form the first cap structure 310 and the second cap structure 320 having the first fastening portions 311, 321 and the second fastening portions 312, 322 as shown in fig. 9. For example, the first ends of the first fastening portions 311, 321 may be bent downward by abutting the first ends of the bridging structures 313, 323 with an elongated mold (not shown) and applying a pushing force to the bridging structures 313, 323 with the elongated mold. Then, the same or another elongated mold (not shown) is abutted against the second ends of the bridging structures 313, 323, and the elongated mold is used to apply a pushing force to the bridging structures 313, 323, so that the second ends of the bridging structures 313, 323 are bent downward to form the first cap structure 310 and the second cap structure 320 as shown in fig. 9.

The first cap structure 310 includes a plurality of first fastening portions 311, a plurality of second fastening portions 312, and a plurality of bridging structures 313. The plurality of bridging structures 313 are arranged substantially parallel in the X-axis direction. From the first bridging structure 313, the first ends of each two bridging structures 313 in the Y-axis direction are connected together to the first fastening portion 311. The first fastening portion 311 has a substantially U-shaped structure and a first width W1 in the X-axis direction. In addition, the second ends of each two bridging structures 313 in the Y-axis direction are commonly connected to the second fastening portion 312. The second fastening portions 312 and the first fastening portions 311 are staggered in the X-axis direction. The second fastening portion 312 has a substantially U-shaped structure and has a second width W2 in the X-axis direction. The first width W1 is narrower than the second width W2. In an embodiment, the first cap structure 310 has three first fastening portions 311 and two second fastening portions 312, but the disclosure is not limited thereto. The number of the first fastening portions 311 and the second fastening portions 312 can be adjusted according to the requirement. In some embodiments, the fastening portion (e.g., the first fastening portion 311) having a narrower width is disposed at the outermost side in the X-axis direction, thereby increasing the convenience of installation.

In some embodiments, the first fastening portion 311 and the second fastening portion 312 are each bent with respect to the bridging structure 313. In an embodiment, the bending radians of the first fastening portion 311 and the second fastening portion 312 are different with respect to the bridging structure 313. For example, the first fastening portion 311 has a first bending curvature a1 relative to the bridging structure 313, and the second fastening portion 312 has a second bending curvature a2 relative to the bridging structure 313, and the first bending curvature a1 is greater than the second bending curvature a2. In an exemplary embodiment, the first bending arc ranges between 130 degrees and 160 degrees and the second bending arc ranges between 75 degrees and 95 degrees. The first fastening portion 311 has a larger bending curvature, which is advantageous for the combination of the first cap structure 310 and the reinforcement cage 200.

In some embodiments, the second cap structure 320 includes a plurality of first fastening portions 321, a plurality of second fastening portions 322, and a plurality of bridging structures 323. In the embodiment shown in fig. 9, the structure of the second cap structure 320 is the same as that of the first cap structure 310, and the description is not repeated here for simplicity of description.

Referring to fig. 11, the method of assembling the reinforcement cage 2 includes arranging a plurality of consecutive stirrups 200 in the X-axis direction such that consecutive stirrups 200 of adjacent arrangement are spaced apart by substantially the same distance as adjacent two first portions 210 in the respective consecutive stirrups 200. In the embodiment shown in fig. 11, only 3 continuous stirrups 200 are shown, but the disclosure is not limited thereto. The number of continuous stirrups 200 may be increased or decreased depending on the design length of the reinforcement cage 2.

The method of assembling the reinforcement cage 2 further includes joining a plurality of longitudinal ribs 250 extending in the X-axis direction to a plurality of first portions 210 of the continuous stirrup 200. In some embodiments, two longitudinal bars 250 located below the reinforcement cage 2 are secured to the junctions of the third portions 230 and the adjacent two first portions 210 of the continuous stirrup 200, respectively. Two longitudinal ribs 250, which are additionally located above the reinforcement cage 2, are coupled to the first and second positioning portions 260 and 270, respectively. And is sandwiched between the first portion 210 and the first positioning portion 260 or between the first portion 210 and the second positioning portion 270.

Next, the first cap structure 310 is straddled over one or more continuous stirrups 200. Specifically, as shown in fig. 11, the method for disposing the first cap structure 310 may include first fastening the first fastening portion 311 of the first cap structure 310 to the first side region 201 of the continuous stirrup 200, where the first fastening portion 311 is located between the two first portions 210 and is staggered with the second portion 220 of the continuous stirrup 200 in the Y-axis direction. At this time, as shown in fig. 11, the first fastening portion 311 directly fastens the longitudinal rib 250 located in the first side region 201. Next, as shown in fig. 12, the second fastening portion 312 of the first cap structure 310 is fastened to the second side region 202 of the continuous stirrup 200, wherein the second fastening portion 312 abuts against the outer side of the first portion 210 of the second side region 202.

Then, the second cap structure 320 is straddled over one or more continuous stirrups 200. Specifically, as shown in fig. 13, the method of disposing the second cap structure 320 may include first fastening the first fastening portion 321 of the second cap structure 320 to the second side region 202 of the continuous stirrup 200, where the first fastening portion 321 is located between the two first portions 210 and overlaps the second portion 220 of the continuous stirrup 200 in the Y-axis direction. At this time, as shown in fig. 13, the first fastening portion 321 is directly fastened to the longitudinal rib 250 located in the second side region 202, and the first fastening portion 321 of the second cap structure 320 is located in the second fastening portion 312 of the first cap structure 310. Then, the second fastening portion 322 of the second cap structure 320 is fastened to the first side region 201 of the continuous stirrup 200, so as to form the reinforcement cage 2 as shown in fig. 5.

In some embodiments, after the first cap structure 310 and the second cap structure 320 span the plurality of continuous stirrups 200 and join the first side region 201 and the second side region 202, the first cap structure 310 and the second cap structure 320 are disposed over the continuous stirrups 200 in an overlapping manner and do not interfere with each other. Specifically, the first fastening portions 311 of the first cap structure 310 and the first fastening portions 321 of the second cap structure 320 are located on opposite sides of the continuous stirrup 200 in the Y-axis direction, and the second fastening portions 312 of the first cap structure 310 and the second fastening portions 322 of the second cap structure 320 are located on opposite sides of the continuous stirrup 200 in the Y-axis direction.

When the reinforcement cage 2 is used at a construction site as a construction structure (e.g., a girder that mainly receives a load), the continuous stirrup 200 is placed with the side having the plurality of second portions 220 facing upward. Since the second portion 220 is disposed substantially horizontally and the connection between the second portion 220 and the first portion 210 is a rounded first positioning portion 260 and second positioning portion 270, the person is prevented from being pricked.

Table 2 shows experimental data for reinforcement cage 2 of some embodiments of the present disclosure with reinforcement cages of a control group. The steel reinforcement cage in the control group is composed of a plurality of stirrups which are separately arranged as described in the specification [ prior art ] and bent into a U shape and a traditional net-shaped top cover. As can be seen from inspection of table 2, the reinforcement cage 2 of some embodiments of the present disclosure exhibited superior performance in terms of ideal yield force, maximum load and limit deflection compared to the reinforcement cage of the control group, and only required 87% of the material consumption compared to the reinforcement cage of the control group.

TABLE 2

Project	Control group	Reinforcement cage 2
			Ideal yield offset (%)	0.49(100％)	0.44(90％)
Ideal yield force (kN)	128.3(100％)	142.9(111％)
			Highest load (kN)	141(100％)	156(111％)
Limit offset (%)	4.4(100％)	4.57(104％)
			Stirrup amount (%)	100％	87％

The above-described embodiments are provided for illustrating the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the same, and when the patent scope of the present invention is not limited thereto, equivalent changes or modifications according to the spirit of the present invention shall be covered in the patent scope of the present invention.

Symbol description

1: Reinforcement cage

100: Continuous stirrup

100': Planar structure

101: First side region

102: Second side edge region

103: Third side edge region

110: First part

120: Second part

130: Third part

140: Hook

150: Longitudinal rib

2: Reinforcement cage

200: Continuous stirrup

200': Planar structure

200": Intermediate structure

201: First side region

202: Second side edge region

203: Third side edge region

210: First part

220: Second part

230: Third part

240: Hook

250: Longitudinal rib

260: A first positioning part

270: A second positioning part

310: First cap structure

310': Planar structure

311: First fastening part

312: Second fastening part

313: Bridging structure

320: Second cap structure

320': Planar structure

321: First fastening part

322: Second fastening part

323: Bridging structure

51: Wire (C)

52: Wire (C)

A1: first bending radian

A2: second bending radian

W1: first width of

W2: a second width.

Claims

1. A reinforcement cage, comprising:

A continuous stirrup defined with a first side region, a second side region, and a middle region between the first side region and the second side region, wherein the first side region and the second side region are located on opposite sides of the middle region, respectively, and perpendicular to the middle region, the continuous stirrup comprising:

A plurality of first portions extending along the Z-axis direction, the plurality of first portions being located in the first side region and the second side region and being arranged in parallel;

A plurality of first positioning portions coupled to one end of the plurality of first portions located at the first side region remote from the intermediate region, the plurality of first positioning portions being curved toward an inner side of the continuous stirrup with respect to the plurality of first portions;

a plurality of second positioning portions joined to one end of the plurality of first portions located at the second side regions remote from the intermediate region, the plurality of second positioning portions being curved toward the inside of the continuous stirrup with respect to the plurality of first portions;

a plurality of second portions connecting adjacent two of the plurality of first portions in the X-axis direction; and

A plurality of third portions joining the two opposing first portions in the Y-axis direction, the plurality of third portions being located in the intermediate region;

A plurality of longitudinal ribs extending in the X-axis direction and joining the plurality of first portions of the continuous stirrup, wherein two of the plurality of longitudinal ribs are joined to the first positioning portion in the first side region and the second positioning portion in the second side region, respectively; and

The first cap structure and the second cap structure are respectively a three-dimensional structure formed by continuously bending a single stirrup, and are configured to span over the continuous stirrup and connect the first side edge area with the second side edge area, and the first cap structure and the second cap structure respectively comprise:

a plurality of bridging structures arranged in parallel in the X-axis direction and straddling the upper parts of the continuous stirrups;

A plurality of first fastening parts extending from one ends of the plurality of bridging structures by a first width in the X-axis direction and bending relative to the plurality of bridging structures; and

A plurality of second fastening parts extending from the other ends of the plurality of bridging structures by a second width in the X-axis direction and bending relative to the plurality of bridging structures, wherein the first width is narrower than the second width;

wherein the first buckling parts and the second buckling parts are arranged in a staggered way,

Wherein the first buckling part has a first bending radian relative to the bridging structure, the second buckling part has a second bending radian relative to the bridging structure, the first bending radian ranges from 130 degrees to 160 degrees, the second bending radian ranges from 75 degrees to 95 degrees,

Wherein the plurality of first snap-fit portions of the first cap structure snap-fit directly to the longitudinal ribs of the first positioning portion in the first side region, the plurality of second snap-fit portions of the first cap structure abut against the outer sides of the plurality of first portions of the second side region,

Wherein the plurality of first snap-fit portions of the second cap structure snap-fit directly to the longitudinal ribs of the second locating portion in the second side region, the plurality of second snap-fit portions of the second cap structure abutting the outside of the plurality of first portions of the first side region.

2. The reinforcement cage of claim 1, wherein the first and second cap structures are disposed over the continuous stirrup in an overlapping relationship and do not interfere with each other.

3. The reinforcement cage of claim 2, wherein the plurality of first snap-fit portions of the first cap structure and the plurality of first snap-fit portions of the second cap structure are located on opposite sides of the Y-axis direction, respectively, and the plurality of second snap-fit portions of the first cap structure and the plurality of second snap-fit portions of the second cap structure are located on opposite sides of the Y-axis direction, respectively.