Crack-resistant structure of buildings
By employing a mesh structure with alternating ring and straight steel bars at the corners of buildings, the stress transmission path is altered, thus solving the stress concentration problem at the corners of concrete buildings, improving the durability and stability of the buildings, and simplifying the construction process.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- PHASE TRANSITION ENERGY LTD
- Filing Date
- 2026-05-27
- Publication Date
- 2026-07-24
Smart Images
Figure 0003256726000001_ABST
Abstract
Description
Technical Field
[0005] , ,
[0001] The present invention relates to a crack-resistant structure for buildings, and particularly to a crack-resistant structure used at the corner positions of door and window frames in reinforced concrete building construction.
Background Art
[0002] In conventional reinforced concrete buildings, the corner positions of door and window frames have a corner structure, and it is impossible to continuously arrange steel bars in the building. Therefore, it is necessary to perform end treatment by bending or an anchor method, resulting in poor stress transmission and easy stress concentration at the corner part. As a result, bending or interruption occurred at that position due to the structure, and it was difficult to smoothly transmit external forces, and a phenomenon of local stress concentration at that position easily occurred. In particular, when the building is subjected to external forces such as earthquakes, wind pressure, and temperature changes, the phenomenon of stress concentration at that position easily occurs, and over a long period, cracks are extremely likely to occur.
[0003] When such cracks occur at the corners of doors and windows, it not only affects the structural safety and appearance integrity but also easily causes problems such as water leakage and air leakage due to the cracks. Furthermore, there is also a risk of subsequent damages such as wall peeling, steel bar corrosion, and difficulty in repair.
[0004] In the prior art, a combination form of steel bars and concrete is generally adopted as the support for the main structure, but for the corner area of the door and window frames, no specific design has been made to effectively disperse or induce stress, and there is also a lack of auxiliary structures to enhance the crack-resistant performance of this area. Therefore, it is still difficult to avoid the occurrence of cracks at such stress concentration points, and there is still room for further improvement in the durability of the structure and the overall stability.
Summary of the Invention
Problems to be Solved by the Invention
[0005] The objective of this invention is to provide a crack-resistant structure for buildings that can improve the overall durability and crack resistance of the building by dispersing and re-inducing local stress transmission paths, thereby preventing the occurrence and expansion of cracks. [Means for solving the problem]
[0006] To solve the above problems, according to a first embodiment of the present invention, a crack-resistant structure for a building is provided, which is fixed to a plurality of reinforcing bars of the building, and comprises annular reinforcing bars, wherein the annular reinforcing bars are polygonal and include two first directional fixing sides that are parallel to each other, and when the first directional fixing sides are fixed to the reinforcing bars, the first directional fixing sides overlap parallel to the reinforcing bars.
[0007] To solve the above problems, a second embodiment of the present invention provides a crack-resistant structure for a building comprising a plurality of straight reinforcing bars and a plurality of annular reinforcing bars, wherein the straight reinforcing bars are arranged radially from the center and do not intersect with each other, and the annular reinforcing bars do not intersect with each other but intersect with the straight reinforcing bars and are fixed together.
[0008] Preferably, the structure further comprises two side reinforcements, the side reinforcements being arranged adjacent to each other, the side reinforcements and the straight reinforcements being arranged radially from the center, the side reinforcements and the straight reinforcements not intersecting, the annular reinforcement being fixed to intersect with each of the side reinforcements, and the annular reinforcement being connected between the side reinforcements and the straight reinforcements, except for the region between the side reinforcements, thereby forming a notch in the region between the side reinforcements.
[0009] The annular reinforcement preferably exhibits a polygonal shape with an even number of sides and includes two first directional fixed sides that are parallel to each other. [Effects of the Invention]
[0010] The crack-resistant structure for buildings according to this invention has the following effects (1) to (5). (1) By forming a sub-structural support area at the corner of the door / window frame and changing the stress transmission path due to external forces there, the local stress that was originally concentrated at the corner can be distributed outward throughout the entire building, thereby suppressing the occurrence of initial cracks and slowing the expansion of cracks, and significantly improving the crack resistance and long-term stability of the entire building. (2) By forming a substructure support area around the tubular structure and changing the stress transmission path due to external forces there, local stress around the tubular structure can be distributed outward throughout the entire building, thereby suppressing the occurrence of initial cracks and slowing the expansion of cracks, and significantly improving the crack resistance and long-term stability of the entire building. (3) The crack-resistant structure can be installed directly on the reinforced steel frame of a building, does not require formwork or special processing techniques, has an easy construction method, contributes to shortening the construction period and reducing labor costs, and can achieve both structural reinforcement and construction efficiency. (4) The crack-resistant structure has a reinforcing structure with a protruding main body, which significantly increases the adhesion between multiple straight or annular reinforcing bars and concrete, allowing it to effectively bear and transmit external forces, thereby improving the overall structural integrity and load-bearing capacity, and significantly enhancing the crack-resistant effect and durability. (5) By improving the stress distribution mechanism and structural stability described above, it is possible to effectively prevent cracks and water leakage from occurring in corners, reduce future repair costs and maintenance frequency, and substantially contribute to improving the usable life and quality of buildings. [Brief explanation of the drawing]
[0011] [Figure 1] This is a perspective view showing a crack-resistant structure for a building according to the first embodiment of the present invention. [Figure 2] This is a front view showing the crack-resistant structure of a building according to the first embodiment of the present invention. [Figure 3] This is a magnified view of part A in Figure 1. [Figure 4] This is a magnified view of section B in Figure 1. [Figure 5]This is a magnified view of section C in Figure 1. [Figure 6] This is a front view showing the crack-resistant structure for buildings according to the first embodiment of the present invention, installed on a building and door / window frame, and subjected to force. [Figure 7] This is a front view showing the crack-resistant structure for buildings according to the second embodiment of the present invention installed on a building and door / window frame. [Figure 8] This is a front view showing the crack-resistant structure for buildings according to the third embodiment of the present invention installed on a building and door / window frame. [Figure 9] This is a front view showing the crack-resistant structure for buildings according to the fourth embodiment of the present invention installed in a building and a tubular structure. [Figure 10] This is a front view showing the crack-resistant structure for buildings according to the fifth embodiment of the present invention installed in a building and a tubular structure. [Modes for carrying out the invention]
[0012] Other technical details, features, and effects of this invention will be clarified below by a detailed description of preferred embodiments with reference to the drawings. In order to be concise and clear, some conventional structures and components are depicted in a simplified manner or omitted to the extent that they do not affect the interpretation of the technical features of this invention. Furthermore, the dimensions of each structure and component in the drawings are not necessarily the same as the actual dimensions, but are represented in proportions suitable for the reader.
[0013] Unless otherwise defined, all technical and scientific terms used herein have their ordinary meanings as understood by those skilled in the art.
[0014] In this specification, unless otherwise specified, the articles "one," "one," and "any" refer to one or more items (i.e., at least one). For example, "one component" refers to one component or more than one component.
[0015] (First embodiment) Refer to FIG. 1. FIG. 1 is a perspective view showing a crack-resistant structure of a building according to the first embodiment of the present invention. As shown in FIG. 1, the crack-resistant structure 10 of the first embodiment of the present invention includes two side ribs 20, a plurality of straight ribs 30, a plurality of annular ribs 40, and a notch portion 50.
[0016] Refer to FIG. 2. FIG. 2 is a front view showing a crack-resistant structure of a building according to the first embodiment of the present invention. As shown in FIG. 2, the number of straight ribs 30 of the crack-resistant structure is three. The two side ribs 20 and each straight rib 30 are radially arranged from the center P at their ends. The two side ribs 20 are provided adjacent to each other. The two side ribs 20 and each straight rib 30 do not intersect with each other. Specifically, the ends of each side rib 20 and the ends of each straight rib 30 intersect at the center P, but the other parts extend in individual directions respectively, so they do not intersect with each other. The number of annular ribs 40 is three. Each annular rib 40呈円弧状, but since their arc radii are all different, each annular rib 40 also does not intersect with each other. Each annular rib 40 has the center P as the center of the arc. In other words, the arcs of each annular rib 40 are concentric arcs with all different radii. Also, each annular rib 40 intersects and is fixed to the two side ribs 20 and each straight rib 30 respectively. Except for the area between the two side ribs 20, each annular rib 40 is connected between the two side ribs 20 and each straight rib 30. Thereby, a notch 50 is formed in the area between the two side ribs 20. In one embodiment, the two side ribs 20 have a plurality of protrusions 21 extending at locations corresponding to the notch 50. Each protrusion 21 is integrally formed with the two side ribs 20 respectively, and it is used to form a gap 22 between the two side ribs 20 and the door / window frame of the building. In other embodiments, the number of the straight ribs 30 or the annular ribs 40 is not limited to three, and as long as the annular rib 40 intersects and is fixed to the straight rib 30, it is included in the scope of this embodiment. In other embodiments, the two side ribs 20 and each straight rib 30 are not limited to being arranged radially. As long as the two side ribs 20 and each straight rib 30 do not intersect each other and each annular rib 40 intersects the two side ribs 20 and each straight rib 30 respectively, it is included in the scope of this embodiment. In other embodiments, the arcs of each annular rib 40 are not limited to concentric arcs. As long as each annular rib 40 does not intersect each other and each annular rib 40 intersects the two side ribs 20 and each straight rib 30 respectively, it is included in the scope of this embodiment.
[0017] Continuing to refer to FIG. 2. As shown in FIG. 2, the crack resistance structure 10 includes a central portion 60. The central portion 60 is formed at the location where the ends of each side rib 20 and the ends of each straight rib 30 intersect.
[0018] Refer to FIG. 3. Figure 3 is a partially enlarged view of section A of Figure 1. As shown in Figure 3, the outer surface 201 of each side reinforcement 20 has a protruding reinforcing structure 202. The reinforcing structure 202 is used to increase the area of the outer surface 201 and to ensure that concrete adheres securely to the side reinforcement 20. Specifically, the reinforcing structure 202 includes a curved protruding structure 202a and a straight protruding structure 202b. The curved protruding structure 202a is curved and provided around the outer surface 201. The curve mentioned above is, for example, a screw thread, but is not limited to this. The straight protruding structure 202b is provided in a straight line on the outer surface 201.
[0019] Refer to Figure 4. Figure 4 is a partially enlarged view of section B of Figure 1. As shown in Figure 4, the outer surface 301 of each straight reinforcing bar 30 has a protruding reinforcing structure 302. The reinforcing structure 302 is used to increase the area of the outer surface 301 and to ensure that concrete adheres securely to the straight reinforcing bar 30. Specifically, the reinforcing structure 302 includes a curved protruding structure 302a and a straight protruding structure 302b. The curved protruding structure 302a is curved and provided around the outer surface 301. The curve mentioned above is, for example, a screw thread, but is not limited to this. The straight protruding structure 302b is provided in a straight line on the outer surface 301.
[0020] Refer to Figure 5. Figure 5 is a partially enlarged view of section C in Figure 1. As shown in Figure 5, the outer surface 401 of each annular reinforcement 40 has a protruding reinforcing structure 402. The reinforcing structure 402 is used to increase the area of the outer surface 401 and to ensure that concrete adheres securely to the annular reinforcement 40. Specifically, the reinforcing structure 402 includes a curved protruding structure 402a and a straight protruding structure 402b. The curved protruding structure 402a is curved and provided around the outer surface 401. The curve mentioned above is, for example, a screw thread, but is not limited to this. The straight protruding structure 402b is provided in a straight line on the outer surface 401.
[0021] Refer to Figure 6. Figure 6 is a front view showing the crack-resistant structure for a building according to the first embodiment of the present invention installed in the building 70 and door / window frames 71 and subjected to force. As shown in Figure 6, the crack-resistant structure 10 is installed inside the building 70 and corresponds to each corner 711 of each door / window frame 71 located inside the building 70 (generally, if the door / window frame 71 is rectangular, it has four corners 711, but in order to more clearly disclose the technical details, only one of the corners 711 is depicted in Figure 6). When actually installing, the notches 50 are set at positions corresponding to the corners 711, and each annular reinforcement 40 and each straight reinforcement 30 are fixed to the reinforcing bars 72 inside the building 70, respectively. Then, concrete is poured into the building 70, filling the spaces between the reinforcing bars 72, each annular reinforcement 40, and each straight reinforcement 30 with concrete, thereby fixing the crack-resistant structure 10 inside the building 70. When the door / window frame 71 is installed in the building 70, the corner portion 711 of the door / window frame 71 corresponds to the central portion 60 in the notch portion 50, and the protruding portions 21 abut against the outside of the two frame bodies 712 adjacent to the corner portion 711, so that the two side reinforcements 20 are tightly packed parallel to the outside of the two frame bodies 712 adjacent to the corner portion 711, and a gap 22 is formed between the two side reinforcements 20 and the two frame bodies 712. Because the crack-resistant structure 10 is positioned at the corner 711, when the building 70 is subjected to external forces (earthquakes, wind pressure, temperature changes, etc.), the local stress that was originally concentrated at the corner 711 is transmitted to each annular reinforcement 40 and each straight reinforcement 30 via the central portion 60 (corresponding to the point where the ends of each side reinforcement 20 and each straight reinforcement 30 intersect) or each protrusion 21, and is ultimately diffused throughout the building 70, thereby changing the stress transmission path. In other words, when an external force is applied to the building 70, the crack-resistant structure 10 forms a sub-structural support area, assisting in sharing and bearing a portion of the stress, preventing the stress from concentrating at the corner 711, and allowing it to be transferred within the building 70 along the direction of arrangement of the crack-resistant structure 10 and the reinforcement bars 72. This effectively reduces the stress peak value at the corner 711, prevents the occurrence of initial cracks, suppresses crack propagation, and thereby improves the crack resistance stability and durability of the building 70. Notably, the contour of the notch 50 must conform to the corner 711 (for example, the angle of the notch 50 and the angle of the corner 711 in Figure 6 are both 90°), and when the door / window frame 71 is attached to the building 70, the two side reinforcements 20 are in close contact with the outside of the two frame bodies 712 adjacent to the corner 711, resulting in a tighter connection between the two.
[0022] (Second example) Refer to Figure 7. Figure 7 is a front view showing the crack-resistant structure for buildings according to the second embodiment of the present invention installed on a building and door / window frame. As shown in Figure 7, unlike the first embodiment, the crack-resistant structure 10 of the second embodiment has two annular reinforcements 40, and each annular reinforcement 40 is a polygon (regular hexagon) with an even number of sides, and their dimensions are all different, so that the annular reinforcements 40 do not intersect with each other, and each annular reinforcement 40 is arranged with its center P as a common geometric center.
[0023] Furthermore, each annular reinforcement 40 includes two first directional fixed sides 41. Each first directional fixed side 41 is parallel to the others. Each first directional fixed side 41 overlaps parallel to the two longitudinal reinforcement bars 72. This provides each annular reinforcement 40 with more fixing points for connecting to the reinforcement bars 72, making the connection between each annular reinforcement 40 and each reinforcement bar 72 stronger. Also, because each first directional fixed side 41 overlaps parallel to the two longitudinal reinforcement bars 72, the stress path transmitted from each annular reinforcement 40 to the building 70 is shortened, resulting in improved crack resistance. In addition, each hexagonal annular reinforcement 40 has straight and orderly sides, resulting in larger voids between it and the reinforcement bars 72. When concrete is poured, the concrete fills the voids in the reinforcement bars 72 more uniformly, resulting in less air bubble formation and increasing the strength of the building 70. Aside from the differences mentioned above, the second embodiment has the same characteristics as the first embodiment, and therefore will not be described in detail here.
[0024] (Third embodiment) Refer to Figure 8. Figure 8 is a front view showing the crack-resistant structure for buildings according to the third embodiment of the present invention installed on a building 70 and door / window frame 71. As shown in Figure 8, unlike the first embodiment, the third embodiment has two annular reinforcement bars 40, and each annular reinforcement bar 40 is a polygon (regular octagon) with an even number of sides, and all of their dimensions are different, so that the annular reinforcement bars 40 do not intersect with each other, and each annular reinforcement bar 40 is arranged with its center P as a common geometric center.
[0025] Furthermore, each annular reinforcement 40 includes two first directional fixed sides 41 and two second directional fixed sides 42. Each first directional fixed side 41 is parallel to the others. Each first directional fixed side 41 is superimposed parallel to the two longitudinal reinforcement bars 72. Each second directional fixed side 42 is also parallel to the others. Each second directional fixed side 42 is superimposed parallel to the two transverse reinforcement bars 72. This provides each annular reinforcement 40 with more fixing points for connection to the reinforcement bars 72, making the connection between each annular reinforcement 40 and each reinforcement bar 72 stronger. In addition, because each first directional fixed side 41 is superimposed parallel to the two longitudinal reinforcement bars 72 and each second directional fixed side 42 is superimposed parallel to the two transverse reinforcement bars 72, the stress path transmitted from each annular reinforcement 40 to the building 70 is shortened, thereby improving crack resistance. Furthermore, each of the octagonal ring-shaped reinforcements 40 has straight and orderly sides, resulting in larger gaps between them and the reinforcing bars 72. When concrete is poured, the concrete fills the gaps in the reinforcing bars 72 more uniformly, resulting in less air bubble formation and higher strength for the building 70. Aside from the differences mentioned above, the third embodiment has the same characteristics as the first embodiment and will not be described in detail here.
[0026] (Fourth embodiment) Refer to Figure 9. Figure 9 is a front view showing the crack-resistant structure for buildings according to the fourth embodiment of the present invention installed in a building 70 and a tubular structure 73. The crack-resistant structure 10 according to the fourth embodiment of the present invention includes a plurality of straight reinforcing bars 30 and a plurality of annular reinforcing bars 40. There are four straight reinforcing bars 30. Each straight reinforcing bar 30 is arranged radially from the center P at its end. Each straight reinforcing bar 30 does not intersect with each other. Specifically, the ends of each straight reinforcing bar 30 intersect at the center P, and the other parts extend in separate directions, so they do not intersect with each other. There are two annular reinforcing bars 40. Each annular reinforcing bar 40 is a polygon (regular hexagon) with an even number of sides, and their dimensions are all different, so that each annular reinforcing bar 40 does not intersect with each other. Each annular reinforcement bar 40 is positioned with center P as a common geometric center. Each annular reinforcement bar 40 is also fixed in intersection with each straight reinforcement bar 30. In other embodiments, the number of straight reinforcement bars 30 is not limited to four, nor is the number of annular reinforcement bars 40 limited to two. As long as the annular reinforcement bars 40 and straight reinforcement bars 30 can be fixed in intersection with each other, it is included within the scope of this embodiment. In other embodiments, each straight reinforcement bar 30 is not limited to being arranged radially, and as long as the straight reinforcement bars 30 do not intersect with each other, and each annular reinforcement bar 40 intersects with each straight reinforcement bar 30, it is included within the scope of this embodiment. In the fourth embodiment, each annular reinforcement bar 40 includes two first directional fixed sides 41. Each first directional fixed side 41 is parallel to each other, and each first directional fixed side 41 overlaps parallel to two transverse reinforcement bars 72. In other embodiments, each first directional fixing side 41 may be superimposed parallel to two vertical or diagonal reinforcing bars 72, and as long as each first directional fixing side 41 is superimposed parallel to the reinforcing bars 72, it falls within the scope of this embodiment.
[0027] Furthermore, the crack-resistant structure 10 is installed inside the building 70 and corresponds to the perimeter of each tubular structure 73 located inside the building 70. When actually installing it, the innermost ring-shaped reinforcement 40 is fitted around the tubular structure 73, each ring-shaped reinforcement 40 and each straight reinforcement 30 are fixed to the reinforcing bars 72 inside the building 70, and concrete is poured into the building 70 to fill the spaces between the reinforcing bars 72, each ring-shaped reinforcement 40 and each straight reinforcement 30 with concrete, thereby fixing the crack-resistant structure 10 inside the building 70. By placing the crack-resistant structure 10 on the tubular structure 73, when the building 70 is subjected to external forces (earthquakes, wind pressure, temperature changes, etc.), the stress that was originally concentrated around the tubular structure 73 is transmitted to each ring-shaped reinforcement 40 and each straight reinforcement 30, and finally diffused into the building 70, further changing the stress transmission path, thereby increasing the crack resistance stability and durability of the building 70. Furthermore, each annular reinforcement 40 provides more fixing points for connecting with the reinforcing bars 72, making the connection between each annular reinforcement 40 and each reinforcing bar 72 stronger. Also, because each first directional fixing side 41 is superimposed parallel to the two longitudinal reinforcing bars 72, the path through which stress is transmitted from each annular reinforcement 40 to the building 70 is shortened, resulting in improved crack resistance. Moreover, each hexagonal annular reinforcement 40 has straight and orderly sides, resulting in larger voids between it and the reinforcing bars 72. When concrete is poured, the concrete fills the voids in the reinforcing bars 72 more uniformly, reducing the generation of air bubbles and increasing the strength of the building 70.
[0028] (Fifth example) Refer to Figure 10. Figure 10 is a front view showing the crack-resistant structure for a building according to the fifth embodiment of the present invention installed in the building 70 and the tubular structure 73. As shown in Figure 10, the crack-resistant structure 10 of the fifth embodiment includes one annular reinforcement bar 40. The annular reinforcement bar 40 has an even number of sides and is a polygon (regular hexagon). The annular reinforcement bar 40 includes two first directional fixed sides 41. Each first directional fixed side 41 is parallel to the others. Each first directional fixed side 41 overlaps parallel to two transverse reinforcement bars 72. In other embodiments, each first directional fixed side 41 may overlap parallel to two longitudinal or diagonal reinforcement bars 72. Each first directional fixed side 41 is included in the scope of this embodiment as long as it overlaps parallel to the reinforcement bars 72. The crack-resistant structure 10 is installed inside the building 70 and corresponds to the perimeter of each tubular structure 73 located inside the building 70. When actually installed, the ring-shaped reinforcement bars 40 are fitted around the tubular structure 73, and the ring-shaped reinforcement bars 40 and each first directional fixing edge 41 are fixed to the reinforcing bars 72 inside the building 70. Furthermore, by pouring concrete into the building 70, the space between the reinforcing bars 72 and the ring-shaped reinforcement bars 40 is filled with concrete, thereby fixing the crack-resistant structure 10 inside the building 70. By placing the crack-resistant structure 10 in the tubular structure 73, when the building 70 is subjected to external forces (e.g., earthquakes, wind pressure, temperature changes, etc.), the stress that was originally concentrated around the tubular structure 73 is transmitted to the ring-shaped reinforcement bars 40, and finally diffused into the building 70, changing the stress transmission path. This can improve the crack resistance stability and durability of the building 70.
[0029] In each of the embodiments described above, the crack-resistant structure 10 is integrally molded, and its material may be a composite material formed by bonding plastic and fibers. The fibers mentioned above are selected from carbon fibers, glass fibers, basalt fibers, or Kevlar® fibers.
[0030] In each of the embodiments described above, the ring-shaped reinforcement 40 may be any geometric shape, including, but is not limited to, polygons with an odd number of sides (e.g., triangles, pentagons, etc.), polygons with an even number of sides (e.g., quadrilaterals, hexagons, octagons, decagons, etc.), arcs, circles, ellipses, or other irregular shapes. The polygons described above may be regular polygons or irregular polygons, and the interior angles of irregular polygons do not have to be exactly the same, nor do the lengths of the sides have to be exactly equal.
[0031] The above-described embodiments are merely a selection of preferred embodiments of the present invention and are not intended to limit the present invention. Details disclosed in some embodiments of the present invention are for the purpose of clarifying the disclosure in the specification, and those skilled in the art will understand that these details are unnecessary and do not limit the present invention. Equivalent modifications or alterations made by persons with ordinary skill in the art, based on an understanding of the aforementioned technical features and embodiments of the present invention, without departing from the spirit and scope of the present invention, shall still be included within the scope of the present invention. The claims for utility model registration of the present invention shall be defined in accordance with the claims attached to this specification. [Explanation of Symbols]
[0032] 10. Crack-resistant structure 20 Lateral muscle 21 Protrusion 22 gaps 30 straight reinforcing bars 40 Circular muscle 41 First direction fixed edge 42 Second direction fixed edge 50 Notch 60 center part 70 Buildings 71 Doors and window frames 72 Reinforcement bars 73 Tubular structure 201 External surface 202 Reinforcement structure 202a Curved protruding structure 202b Straight protruding structure 301 outer surface 302 Reinforcement Structure 302a Curve Prominent Structure 302b Straight-line protruding structure 401 outer surface 402 Reinforcement Structure 402a Curve Prominent Structure 402b Straight-line protruding structure 711 Sumibe 712 Frame P Center
Claims
1. A crack-resistant structure for buildings, which is fixed to multiple reinforcing bars of a building, Equipped with circular supports, The aforementioned annular reinforcement is polygonal and includes two first directional fixed sides that are parallel to each other. The first direction-fixing edge is characterized in that, when fixed to the reinforcing bar, the first direction-fixing edge overlaps parallel to the reinforcing bar. Crack-resistant structure for buildings.
2. A crack-resistant structure for buildings, comprising multiple straight reinforcements and multiple ring reinforcements, The aforementioned straight reinforcing bars are arranged radially from the center and do not intersect with each other. The annular reinforcement bars are characterized in that they do not intersect with each other, but are fixed in place by intersecting with the straight reinforcement bars. Crack-resistant structure for buildings.
3. It also has two lateral muscles, The aforementioned side reinforcements are arranged adjacent to each other, The aforementioned lateral reinforcement and the aforementioned straight reinforcement are arranged radially from the center, and the lateral reinforcement and the aforementioned straight reinforcement do not intersect. The crack-resistant structure for a building according to claim 2, characterized in that the annular reinforcement is fixed intersecting with the side reinforcement, and the annular reinforcement is connected between the side reinforcement and the straight reinforcement, except for the region between the side reinforcement, thereby forming a notch in the region between the side reinforcement.
4. The crack-resistant structure for a building according to claim 2, characterized in that the annular reinforcement has an even-numbered polygonal shape and includes two first direction-fixed sides that are parallel to each other.