ENHANCED NON-COPLANAR DOUBLE WINDING REINFORCEMENT METHOD, STRUCTURE BUILT BY THE SAME, AND CROSSTIE FOR THE SAME

Abstract

An enhanced non-coplanar double winding reinforcement method has a main reinforcing bars erecting step, a reinforcement stirrup winding step, and a crossties double hooking and confining step. The main reinforcing bars and the reinforcement stirrup can be stably confined by the crossties. No iron wire is needed for bundling. Toughness and aseismatic capability of a structure built by the enhanced non-coplanar double winding reinforcement method is improved. Accordingly, construction steps are simplified and construction efficiency are increased. A first plane defined by a main rod portion and a first hook portion of the crosstie and a second plane defined by the main rod portion and a second hook portion of the crosstie intersect, the second hook portion can pass between two of the main reinforcing bars that are disposed next to each other even when the main reinforcing bars are densely arranged.

Claims

1. An enhanced non-coplanar double winding reinforcement method comprising steps of: a main reinforcing bars erecting step, wherein multiple main reinforcing bars are vertically disposed and are separately arranged annularly; a reinforcement stirrup winding step, wherein a reinforcement stirrup is horizontally wound around the main reinforcing bars; and a crossties double hooking and confining step, wherein multiple crossties are prepared, each of the crossties has a main rod portion, a first hook portion formed on an end of the main rod portion and a second hook portion formed on another end of the main rod portion, and a first plane defined by the main rod portion and the first hook portion and a second plane defined by the main rod portion and the second hook portion intersect and are non-coplanar, and wherein the first hook portion is placed on the reinforcement stirrup, is disposed by a lateral side of a corresponding one of the main reinforcing bars and is tilted to be hooked to the corresponding main reinforcing bar and the reinforcement stirrup, and the second hook portion passes between two of the main reinforcing bars that are disposed next to each other and is hooked to the reinforcement stirrup.

2. The enhanced non-coplanar double winding reinforcement method as claimed in claim 1, wherein in the crossties double hooking and confining step, the first hook portion of each crosstie is bent at an angle of 135 degrees or 180 degrees and the second hook portion of each crosstie is bent at an angle of 90 degrees.

3. The enhanced non-coplanar double winding reinforcement method as claimed in claim 1, wherein in the crossties double hooking and confining step, each two main reinforcing bars that are disposed opposite to each other are provided with two of the crossties, and the first hook portions of the two crossties are hooked to the two main reinforcing bars that are disposed opposite to each other respectively and to the reinforcement stirrup.

4. The enhanced non-coplanar double winding reinforcement method as claimed in claim 2, wherein each two main reinforcing bars that are disposed opposite to each other are provided with two of the crossties, and the first hook portions of the two crossties are hooked to the two main reinforcing bars that are disposed opposite to each other respectively and to the reinforcement stirrup.

5. An enhanced non-coplanar double winding reinforcement structure comprising: multiple main reinforcing bars, each of the main reinforcing bars vertically disposed, and the main reinforcing bars separately arranged annularly; a reinforcement stirrup horizontally wound around the main reinforcing bars; and multiple crossties, each of the crossties having a main rod portion; a first hook portion formed on an end of the main rod portion; and a second hook portion formed on another end of the main rod portion; wherein a first plane defined by the main rod portion and the first hook portion and a second plane defined by the main rod portion and the second hook portion intersect and are non-coplanar; and the first hook portion of each crosstie is placed on the reinforcement stirrup, is disposed by a lateral side of a corresponding one of the main reinforcing bars and is tilted to be hooked to the corresponding main reinforcing bar and the reinforcement stirrup, and the second hook portion of each crosstie passes between two of the main reinforcing bars that are disposed next to each other and is hooked to the reinforcement stirrup.

6. The enhanced non-coplanar double winding reinforcement structure as claimed in claim 5, wherein the first hook portion of each crosstie is bent at an angle of 135 degrees or 180 degrees; and the second hook portion of each crosstie is bent at an angle of 90 degrees.

7. The enhanced non-coplanar double winding reinforcement structure as claimed in claim 5, wherein each two main reinforcing bars that are disposed opposite to each other are provided with two of the crossties, and the first hook portions of the two crossties are hooked to the two main reinforcing bars that are disposed opposite to each other respectively and to the reinforcement stirrup.

8. The enhanced non-coplanar double winding reinforcement structure as claimed in claim 6, wherein each two main reinforcing bars that are disposed opposite to each other are provided with two of the crossties, and the first hook portions of the two crossties are hooked to the two main reinforcing bars that are disposed opposite to each other respectively and to the reinforcement stirrup.

9. A crosstie for an enhanced non-coplanar double winding reinforcement method, and the crosstie having a main rod portion; a first hook portion formed on an end of the main rod portion; and a second hook portion formed on another end of the main rod portion; wherein a first plane defined by the main rod portion and the first hook portion and a second plane defined by the main rod portion and the second hook portion intersect and are non-coplanar.

10. The crosstie as claimed in claim 9, wherein the first hook portion of each crosstie is bent at an angle of 135 degrees or 180 degrees; and the second hook portion of each crosstie is bent at an angle of 90 degrees.

11. The crosstie as claimed in claim 9, wherein the first plane defined by the first hook portion and the main rod portion and the second plane defined by the second hook portion and the main rod portion intersect at an angle larger than 90 degrees.

12. The crosstie as claimed in claim 10, wherein the first plane defined by the first hook portion and the main rod portion and the second plane defined by the second hook portion and the main rod portion intersect at an angle larger than 90 degrees.

13. The crosstie as claimed in claim 9, wherein the first plane defined by the first hook portion and the main rod portion and the second plane defined by the second hook portion and the main rod portion intersect at an angle of 90 degrees.

14. The crosstie as claimed in claim 10, wherein the first plane defined by the first hook portion and the main rod portion and the second plane defined by the second hook portion and the main rod portion intersect at an angle of 90 degrees.

15. The crosstie as claimed in claim 9, wherein the first plane defined by the first hook portion and the main rod portion and the second plane defined by the second hook portion and the main rod portion intersect at an angle smaller than 90 degrees.

16. The crosstie as claimed in claim 10, wherein the first plane defined by the first hook portion and the main rod portion and the second plane defined by the second hook portion and the main rod portion intersect at an angle smaller than 90 degrees.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG. 1 is a block diagram of an enhanced non-coplanar double winding reinforcement method in accordance with the present invention;

[0015] FIG. 2 is an enlarged perspective view of an enhanced non-coplanar double winding reinforcement structure in accordance with the present invention, showing a first embodiment of a crosstie in accordance with the present invention is used;

[0016] FIG. 3 is a top view of the enhanced non-coplanar double winding reinforcement structure in FIG. 2;

[0017] FIG. 4 is a side view of the enhanced non-coplanar double winding reinforcement structure in FIG. 2;

[0018] FIG. 5 is a perspective view of the first embodiment of the crosstie used in the enhanced non-coplanar double winding reinforcement structure in FIG. 2;

[0019] FIG. 6 is an enlarged perspective view of an enhanced non-coplanar double winding reinforcement structure in accordance with the present invention, showing a second embodiment of a crosstie in accordance with the present invention is used;

[0020] FIG. 7 is a top view of the enhanced non-coplanar double winding reinforcement structure in FIG. 6;

[0021] FIG. 8 is a side view of the enhanced non-coplanar double winding reinforcement structure in FIG. 6;

[0022] FIG. 9 is a perspective view of the second embodiment of the crosstie used in the enhanced non-coplanar double winding reinforcement structure in FIG. 6;

[0023] FIG. 10 is a perspective view of a third embodiment of the crosstie used in an enhanced non-coplanar double winding reinforcement structure;

[0024] FIG. 11 is an enlarged perspective view of a conventional coplanar single winding reinforcement structure in accordance with the prior art;

[0025] FIG. 12 is a top view of the conventional coplanar single winding reinforcement structure in FIG. 11; and

[0026] FIG. 13 is an enlarged perspective view of a conventional double winding reinforcement structure in accordance with the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] With reference to FIG. 1, an enhanced non-coplanar double winding reinforcement method in accordance with the present invention comprises the following steps: a main reinforcing bars erecting step S1, a reinforcement stirrup winding step S2, and a crossties double hooking and confining step S3.

[0028] With further reference to FIGS. 2 to 4, in the main reinforcing bars erecting step S1, multiple main reinforcing bars 10 are vertically disposed and are separately arranged annularly.

[0029] In the reinforcement stirrup winding step S2, a reinforcement stirrup 20 is horizontally wound around the main reinforcing bars 10. In the preferred embodiment, the main reinforcing bars 10 are arranged in a rectangle, and the reinforcement stirrup 20 is wound in a rectangular shape.

[0030] In the crossties double hooking and confining step S3, multiple crossties 30 are prepared. Each of the crossties 30 horizontally extends between two of the main reinforcing bars 10 that are disposed opposite to each other and has a main rod portion 33, a first hook portion 31, and a second hook portion 32. The first hook portion 31 is formed on an end of the main rod portion 33 and is bent at an angle of 135 degrees or 180 degrees. The second hook portion 32 is formed on another end of the main rod portion 33 and is bent at an angle of 90 degrees. A first plane is defined by the main rod portion 33 and the first hook portion 31 and a second plane is defined by the main rod portion 33 and the second hook portion 32. The first plane and the second plane are non-coplanar and intersect at an angle of 45 degrees or 90 degrees. The first hook portion 31 is placed on the reinforcement stirrup 20, is disposed by a lateral side of a corresponding one of the main reinforcing bars 10, and is tilted to be hooked to the corresponding main reinforcing bar 10 and the reinforcement stirrup 20. The second hook portion 32 passes between two of the main reinforcing bars 10 that are disposed next to each other and is hooked to the reinforcement stirrup 20.

[0031] Moreover, each two main reinforcing bars 10 that are disposed opposite to each other are provided with two of the crossties 30. The two crossties 30 are reversely disposed, such that the first hook portions 31 of the two crossties 30 are hooked to the two main reinforcing bars 10 that are disposed opposite to each other respectively and to the reinforcement stirrup 20.

[0032] With reference to FIGS. 2 to 5, an enhanced non-coplanar double winding reinforcement structure using a first embodiment of the crossties 30 is shown. In each of the crossties 30, the first plane defined by the first hook portion 31 and the main rod portion 33 and the second plane defined by the second hook portion 32 and the main rod portion 33 intersect at an angle of 90 degrees.

[0033] With further reference to FIGS. 6 to 9, an enhanced non-coplanar double winding reinforcement structure using a second embodiment of the crossties 30A is shown. In each of the crossties 30A, the first plane defined by the first hook portion 31A and the main rod portion 33A and the second plane defined by the second hook portion 32A and the main rod portion 33A intersect at an angle smaller than 90 degrees. Specifically, as shown in FIG. 9, the first plane and the second plane intersect at an angle of 45 degrees.

[0034] With further reference to FIG. 10, an enhanced non-coplanar double winding reinforcement structure using a third embodiment of the crossties 30B is shown. In each of the crossties 30B, the first plane defined by the first hook portion 31B and the main rod portion 33B and the second plane defined by the second hook portion 32B and the main rod portion 33B intersect at an angle larger than 90 degrees. Specifically, as shown in FIG. 10, the first plane and the second plane intersect at an angle of 135 degrees.

[0035] Since the first hook portion 31, 31A, 31B of each crosstie 30, 30A, 30B is hooked to the reinforcement stirrup 20 and the corresponding main reinforcing bar 10 at the same time, a stable and full confinement effect can be formed. Moreover, with the second hook portion 32, 32A, 32B of each crosstie 30, 30A, 30B forming a 90-degree half confinement effect on the corresponding main reinforcing bar 10, the crosstie 30, 30A, 30B is able to be stably hooked to the reinforcement stirrup 20 and two of the main reinforcing bars 10 that are disposed opposite to each other and does not fall off easily. Thus, no iron wire is needed for bundling. Therefore, the first hook portion 31, 31A, 31B and the second hook portion 32, 32A, 32B of each crosstie 30, 30A, 30B form a total of three confinement, such that toughness and aseismatic capability of the enhanced non-coplanar double winding reinforcement structure is improved. Accordingly, construction steps are simplified and construction efficiency are increased.

[0036] In addition, as shown in FIGS. 8, 9, and 10, since the first plane defined by the main rod portion 33, 33A, 33B and the first hook portion 31, 31A, 31B of the crosstie 30, 30A, 30B and the second plane defined by the main rod portion 33, 33A, 33B and the second hook portion 32, 32A, 32B of the crosstie 30, 30A, 30B intersect at the angle of 45 degrees or 90 degrees, the second hook portion 32, 32A, 32B can pass between two of the main reinforcing bars 10 that are disposed next to each other. Thus, the crosstie 30, 30A, 30B in accordance with the present invention can be used for confining the main reinforcing bars 10 that are densely arranged.

[0037] Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.