Structure

Abstract

To provide a structure including a hybrid beam that includes a wooden beam and can prevent the wooden beam from being broken by the applied bearing force.SOLUTION: A structure has a pair of columns, a wooden beam connected to the pair of columns, a pair of reinforced concrete, and a pair of reinforcement materials. The pair of reinforced concrete cover a first end and a second end of the wooden beam, respectively, and are disposed so as to expose the wooden beam between the first end and the second end. The pair of reinforcement materials are partially covered with the pair of reinforced concrete, respectively. The pair of reinforcement materials come in contact with a top face and an undersurface of the wooden beam, respectively, and include a first reinforcement plate and a second reinforcement plate that are partially covered with the reinforced concrete.SELECTED DRAWING: Figure 2B

Description

Technical Field

[0001] One embodiment of the present invention relates to a structure exemplified by a building or the like.

Background Art

[0002] In recent years, in structures exemplified by buildings that require large indoor spaces such as office buildings, hospitals, and commercial facilities, a steel frame is used as a beam connecting a pair of columns, and both ends of the steel frame are covered with reinforced concrete (hybrid beam). By using a hybrid beam, the number of columns can be significantly reduced compared to the case where all beams are constructed with reinforced concrete. As a result, a structure with a large space can be designed and built (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] One embodiment of the present invention aims to provide a structure including a hybrid beam containing a wooden beam. Alternatively, one embodiment of the present invention aims to provide a structure including a hybrid beam containing a wooden beam and capable of preventing damage to the wooden beam due to the applied bearing pressure.

Means for Solving the Problems

[0005] One embodiment of the present invention is a structure comprising a pair of columns, a wooden beam connected to the pair of columns, a pair of reinforced concrete sections, and a pair of reinforcing members. The pair of reinforced concrete sections cover a first end and a second end of the wooden beam, respectively, and are positioned so that the wooden beam is exposed between the first and second ends. The pair of reinforcing members are each partially covered by the pair of reinforced concrete sections. Each of the pair of reinforcing members includes a first reinforcing plate and a second reinforcing plate that are in contact with the upper and lower surfaces of the wooden beam, respectively, and are partially covered by the reinforced concrete.

[0006] One embodiment of the present invention is a structure comprising a pair of columns, a wooden beam connected to the pair of columns, a pair of reinforced concrete sections, and a pair of reinforcing members. The pair of reinforced concrete sections cover the first and second ends of the wooden beam, respectively, and are positioned so that the wooden beam is exposed between the first and second ends. The pair of reinforcing members are each partially covered by the pair of reinforced concrete sections. Each of the pair of reinforcing members includes a plurality of first screws driven into the upper surface of the wooden beam and a plurality of second screws driven into the lower surface of the wooden beam. [Brief explanation of the drawing]

[0007] [Figure 1] A schematic perspective view of a structure which is one embodiment of the present invention. [Figure 2A] A schematic side view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 2B] A schematic side view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 3A] A schematic top view of a hybrid beam structure, which is one embodiment of the present invention. [Figure 3B] A schematic top view of a hybrid beam structure, which is one embodiment of the present invention. [Figure 4A] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 4B] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 5A]A schematic front view of a reinforcing material used in a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 5B] A schematic front view of a reinforcing material used in a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 6A] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 6B] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 7A] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 7B] A schematic side view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 8A] A schematic side view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 8B] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 8C] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 9A] A schematic side view of a hybrid beam of a structure, which is one embodiment of the present invention. [Figure 9B] A schematic end view of a hybrid beam of a structure, which is one embodiment of the present invention. [Modes for carrying out the invention]

[0008] The embodiments of the present invention will be described below with reference to the drawings and other documents. However, the present invention can be implemented in various forms without departing from its spirit, and is not to be interpreted as being limited to the embodiments described below.

[0009] The drawings may schematically show the width, thickness, shape, etc. of each part compared to the actual embodiment for clearer explanation, but this is merely an example and does not limit the interpretation of the present invention. In this specification and each drawing, elements having the same functions as those described with respect to the previously shown drawings may be given the same reference numerals, and duplicate explanations may be omitted. When denoting a part of an element with a reference numeral, a lowercase alphabet is appended to the reference numeral. When separately denoting a plurality of elements having the same or similar structures, a hyphen and a natural number are appended after the reference numeral. When collectively denoting a plurality of elements having the same or similar structures, only the reference numeral is used.

[0010] Hereinafter, the expression "a certain structure is exposed from another structure" means a mode in which a part of a certain structure is not covered by another structure, and the part not covered by this other structure also includes a mode in which it is covered by yet another structure.

[0011] Hereinafter, "concrete" refers to a substance in which the hydrate formed by the reaction of cement, which is one of the raw materials, with water has hardened and does not exhibit fluidity, and is distinguished from a state (ready-mix concrete, fresh concrete) in which a mixture containing cement and water has fluidity without being completely hardened.

[0012] <First Embodiment> Hereinafter, the structure of the structure 100, which is one of the embodiments of the present invention, will be described. In the drawings used in the description, for convenience, a plane parallel to the horizontal ground surface is defined as the xy plane, and the vertical direction perpendicular to the xy plane is defined as the z direction for the description.

[0013] 1. Overall Structure A schematic perspective view of the structure 100 is shown in FIG. 1. As shown in FIG. 1, the structure 100 basically includes a plurality of columns 110 extending in the vertical direction (z direction), a plurality of beams 120 connected to a pair of columns 110 and extending in the horizontal direction (x direction or y direction), and a floor slab 150 provided on the beams 120. Each beam 120 is connected to an adjacent pair of columns 110.

[0014] At least one of the beams 120 provided in the structure 100 is a hybrid beam. All of the beams 120 provided in the structure 100 may be hybrid beams, or some of the beams 120 may be hybrid beams and the other beams 120 may be entirely made of reinforced concrete (reinforced concrete beams, hereinafter referred to as RC beams) or wooden beams. For example, in the structure 100 shown in Figure 1, the first beam 120-1 and the third beam 120-3 are hybrid beams, and the second beam 120-2 and the fourth beam 120-4 are RC beams. Here, hybrid beams are used as beams 120 connected to pairs of columns 110 that are spaced far apart (spans) (for example, the pair of the first column 110-1 and the second column 110-2, the pair of the third column 110-3 and the fourth column 110-4, and the pair of the fifth column 110-5 and the sixth column 110-6), while reinforced concrete (RC) beams are used as beams 120 connected to pairs of columns 110 that are spaced far apart (for example, the pair of the first column 110-1 and the third column 110-3, the pair of the second column 110-2 and the fourth column 110-4, the pair of the third column 110-3 and the fifth column 110-5, and the pair of the fourth column 110-4 and the sixth column 110-6). The arrangement of hybrid beams and RC beams can be determined arbitrarily, but it is preferable to use hybrid beams between pairs of columns 110 that are spaced far apart, as shown in the example in Figure 1. This is because hybrid beams are lighter than RC beams, and by using hybrid beams for beams with large spans (in this case, the first beam 120-1, the third beam 120-3, etc.), it is possible to secure a large interior space while providing sufficient strength to the structure 100.

[0015] 2. Pillar Schematic side views of a pair of columns 110 (first column 110-1, second column 110-2) and a beam 120 connected to them are shown in Figures 2A and 2B. In Figure 2B, the concrete 116 and 130 of the columns 110 and beam 120 are shown with dotted lines to show the internal structure. Also, the floor slab 150 is not shown in Figures 2A and 2B. The floor slab 150 is reinforced concrete provided on the beam 120, and a known structure can be used, so its explanation is omitted.

[0016] There are no particular restrictions on the number of columns 110 as long as it is four or more; their number and arrangement can be appropriately determined according to the size and shape of the structure 100. The columns 110 are connected to piles and foundation beams, which are not shown. The shape of the columns 110 (end face shape in the xy plane) is also arbitrary, and can be appropriately selected from squares, circles, ellipses, etc. The length of the columns 110 is also designed appropriately according to the size of the structure 100 and the height of each floor.

[0017] Each column 110 is provided with a reinforcing bar unit that includes at least one main column reinforcement 112 extending vertically, and multiple stirrups 114 that intersect with and surround the main column reinforcement 112. Concrete 116 is poured around this reinforcing bar unit (Figure 2B). The number of main column reinforcement 112 and the density of the stirrups 114 are appropriately determined according to the length and thickness of the column 110 and the required strength.

[0018] 3. Hybrid Beam (1) Wooden beams and reinforced concrete As shown in Figures 2A and 2B, the hybrid beam 120 comprises a wooden beam 122 and a pair of reinforced concrete sections 124 (a first reinforced concrete section 124-1 and a second reinforced concrete section 124-2) that cover both ends of the wooden beam 122, are spaced apart from each other, and are positioned so that the wooden beam 122 is exposed between the ends. The section of the beam 120 in which the wooden beam 122 is exposed from the reinforced concrete section 124 is called the W section, and the section covered by the reinforced concrete section 124 is called the RC section. The wooden beam 122 is connected to a pair of columns 110 via reinforced concrete sections 124 that are positioned to embed both ends of the wooden beam 122. As will be described later, the reinforced concrete section 124 includes various reinforcing bars connected to the columns 110, and concrete 130 that covers both ends of the wooden beam 122 and the reinforcing bars.

[0019] The wooden beam 122 includes timber, and its end face shape (the end face perpendicular to the extension direction of the wooden beam 122) can be arbitrarily determined. The end face shape may be a polygon such as a circle, ellipse, or quadrilateral. Alternatively, the contour of the end face shape may be formed by multiple curves and multiple straight lines. Furthermore, the end face shape may be constant in the extension direction of the wooden beam 122, or it may change continuously due to the original shape of the timber. There are no restrictions on the type of timber; for example, it may be timber derived from coniferous trees such as cypress, pine, and cedar, or timber derived from hardwoods such as oak, beech, zelkova, walnut, teak, and mahogany. In addition, the wooden beam 122 may be formed from plywood made by gluing together multiple plank-shaped pieces of timber.

[0020] Figure 3A shows a schematic top view centered on a single reinforced concrete structure 124. As shown in Figures 2B and 3A, each reinforced concrete structure 124 is equipped with multiple beam main reinforcements 126 and multiple lateral reinforcements 128.

[0021] The main beam reinforcement bars 126 extend in a direction parallel to the extension direction of the wooden beam 122 and are positioned above and below the wooden beam 122, spaced apart from the wooden beam 122 (see Figure 2B). A portion of the main beam reinforcement bars 126 is inserted into the reinforcement unit of the column 110, thereby fixing the main beam reinforcement bars 126 to the reinforcement unit of the column 110. On the other hand, an anchoring plate 126a with a larger end area than the main beam reinforcement bar 126 may be formed on the beam center side of each main beam reinforcement bar 126 (Figure 2B).

[0022] The lateral reinforcement bars 128 are arranged to intersect with the wooden beam 122 and the main beam reinforcement bars 126. As shown in the schematic diagram of the end face along the dashed line AA' in Figure 3A (Figure 4A), the lateral reinforcement bars 128 are arranged to surround the wooden beam 122 and the main beam reinforcement bars 126. The lateral reinforcement bars 128 may also be arranged to surround all of the main beam reinforcement bars 126. The arrangement density (pitch) of the lateral reinforcement bars 128 may be constant or not constant within the reinforced concrete 124. For example, the lateral reinforcement bars 128 may be arranged at a higher density on the column 110 side (i.e., the end side of the beam 120) and on the center side of the beam 120.

[0023] As shown in Figure 3B, multiple reinforcing bars 132 may be further placed in the reinforced concrete 124 as an arbitrary configuration. The reinforcing bars 132 may be placed so as to be in contact with the lateral reinforcing bars 128 or the main beam reinforcing bars 126. Although not shown, the reinforcing bars 132 are inverted U-shaped reinforcing bars that intersect the wooden beam 122 and two or more main beam reinforcing bars 126, enclosing part of the wooden beam 122 and the main beam reinforcing bars 126, and are positioned so that the U-shaped opening faces downwards. Each reinforcing bar 132 can be placed, for example, sandwiched between two adjacent lateral reinforcing bars 128 and in contact with one of the lateral reinforcing bars 128. The number, density, and length of the reinforcing bars 132 can also be determined arbitrarily.

[0024] The wooden beam 122 may be in contact with the column 110. More specifically, both ends of the wooden beam 122 may be in contact with the stirrups 114 of a pair of columns 110, or they may be in contact with the concrete 116 forming the column 110, or they may be embedded in the concrete 116. The wooden beam 122 is sandwiched between multiple beam main reinforcements 126 and surrounded by lateral reinforcements 128 and interlocking reinforcements 132.

[0025] The concrete 130 is provided to embed the main beam reinforcement 126, lateral reinforcement 128, and inserting reinforcement 132, along with both ends of the wooden beam 122. Each reinforced concrete 124 is composed of the main beam reinforcement 126, lateral reinforcement 128, and concrete 130. When inserting reinforcement 132 is used, the inserting reinforcement 132 also constitutes each reinforced concrete 124.

[0026] (2) Reinforcement When a load is applied to the beam 120 in the vertical direction due to an earthquake or other event, the wooden beam 122 receives bearing pressure with the end of the section exposed from the reinforced concrete 124 (W section) (i.e., the boundary between the W section and the RC section) as the support point. Since the wood that makes up the wooden beam 122 has lower strength compared to steel, if a large bearing pressure is applied, the wooden beam 122 may sink into the concrete 130 of the reinforced concrete 124 and be damaged. In addition, if the bearing pressure exceeds a certain value, the wooden beam 122 will be destroyed (bearing failure). Therefore, the beam 120 is provided with reinforcing members 140 to prevent the wooden beam 122 from sinking into the concrete 130 and the resulting bearing failure.

[0027] Specifically, as shown in Figures 2A to 3B, a pair of reinforcing members 140, each including a pair of reinforcing plates 140-1 and 140-2, are provided on the beam 120. The pair of reinforcing members 140 are positioned at both ends of the W section in which the wooden beam 122 is exposed from the reinforced concrete 124. That is, one reinforcing member 140 is provided at one end of the W section, and the other reinforcing member 140 is provided at the other end of the W section. The reinforcing plates 140-1 and 140-2 are in contact with the upper and lower surfaces of the wooden beam 122, respectively, and are fixed to the wooden beam 122 by adhesive or fasteners such as nuts, bolts, or screws, sandwiching the wooden beam 122 between them.

[0028] As shown in Figure 5A, the reinforcing plates 140-1 and 140-2 are plate-shaped members, for example, steel plates containing iron. Alternatively, the reinforcing plates 140-1 and 140-2 may be plate-shaped members formed from resin (fiber-reinforced plastic) containing fibers such as carbon fiber, glass fiber, aramid fiber, basalt fiber, flax fiber, or cellulose fiber. The thickness of the reinforcing material 140, that is, the thickness of the reinforcing plates 140-1 and 140-2, can be appropriately set according to the bearing capacity required for the wooden beam 122, and can be appropriately selected within the range of 1 mm to 20 mm, or 3 mm to 15 mm. Furthermore, as shown in Figure 5B, the plate-shaped members may have a mesh shape with multiple openings 140a arranged at a constant pitch.

[0029] Schematic diagrams of the end faces along the dashed lines BB' and CC' in Figure 3A are shown in Figures 4B, 6A, and 6B. As shown in Figures 4B and 6A, the width W of the reinforcing plates 140-1 and 140-2 (length in the direction perpendicular to the extension direction of the wooden beam 122; the same applies hereinafter) may be greater than the width of the portion of the wooden beam 122 that contacts the reinforcing plates 140-1 and 140-2, or it may be the same as shown in Figure 6B. The length of the reinforcing plates 140-1 and 140-2 (length in the extension direction of the wooden beam 122; the same applies hereinafter) can also be appropriately determined by the length of the beam 120, the ratio of the length of the W section to the length of the RC section, etc., and can be selected from the range of 10 cm to 50 cm or 15 cm to 30 cm.

[0030] Here, as can be seen from Figures 3A, 3B, 4B, 6A, etc., each pair of reinforcing members 140 is partially covered by each pair of reinforced concrete 124. More specifically, each of the reinforcing plates 140-1 and 140-2 is positioned such that part of it is covered or embedded in the reinforced concrete 124, and the other part is exposed from the reinforced concrete 124. Furthermore, reinforcing plate 140-1 is positioned such that the upper surface of the wooden beam 122 is not exposed from reinforcing plate 140-1 in a direction perpendicular to the extension direction of the wooden beam 122. Similarly, reinforcing plate 140-2 is positioned such that the lower surface of the wooden beam 122 is not exposed from reinforcing plate 140-2 in a direction perpendicular to the extension direction of the wooden beam 122. By arranging the reinforcing plates 140-1 and 140-2 in this manner, when the beam 120 is subjected to a load in the vertical direction and deflects, the upper and lower surfaces of the wooden beam 122 do not come into direct contact with the concrete 130. The bearing pressure is distributed by the reinforcing plates 140-1 and 140-2, preventing the wooden beam 122 from sinking into the concrete 130. As a result, damage to the wooden beam 122 and the resulting bearing failure are prevented.

[0031] The configuration of the reinforcing member 140 is not limited to the configuration described above. For example, as shown in Figure 7A, a schematic end view corresponding to Figure 6A or Figure 6B, the reinforcing member 140 may include a pair of reinforcing plates 140-3 and 140-4 that contact the side surface of the wooden beam 122, cover this side surface, and sandwich the wooden beam 122, together with a pair of reinforcing plates 140-1 and 140-2. The reinforcing plates 140-3 and 140-4 are plate-shaped members including steel plate or reinforced plastic, similar to the reinforcing plates 140-1 and 140-2. The reinforcing plates 140-1 to 140-4 are each independent parts and may be connected to each other by adhesive, welding, or fasteners, or they may be a single integrated part. Therefore, a pair of reinforcing plates 140-1 to 140-4 may be integrated to form a single tubular reinforcing member 140.

[0032] The width and / or height (vertical length) of the wooden beam 122 may be constant from the W section to the RC section, or, as shown in Figure 7B, the portion where the reinforcing member 140 is provided may be smaller than other portions. In the latter case, the width and / or height of the wooden beam 122 may be adjusted so that the surface 122a of the wooden beam 122 exposed from the reinforcing member 140 in the W section is on the same plane as the surface 140b of the reinforcing member 140. By adjusting the width and / or height of the wooden beam 122 in this way, the irregularities caused by the reinforcing member 140 are not visible in the W section, thus preserving the aesthetic appearance of the beam 120.

[0033] Alternatively, as shown in Figure 8A and the schematic diagram of the end face along the dashed line DD' (Figure 8B), the reinforcing member 140 may include a pair of reinforcing plates 140-1 and 140-2, along with one or more reinforcing rods 142 connecting the reinforcing plates 140-1 and 140-2 to each other. One of the functions of the reinforcing rods 142 is to prevent a large compressive force from being applied to the wooden beam 122 when a large bearing pressure is applied to the wooden beam 122. For this reason, the reinforcing rods 142 are configured so that the distance between the reinforcing plates 140-1 and 140-2 does not change when bearing pressure is applied to the wooden beam 122. For example, high-tensile steel wire (PC steel wire) containing iron can be used as the reinforcing rod 142. The diameter of the end face of the reinforcing rod 142 can also be appropriately determined according to the bearing capacity required of the wooden beam 122, for example, it can be selected in the range of 10 mm to 30 mm. The reinforcing rod 142 is fixed to the reinforcing plates 140-1 and 140-2 by welding, adhesive, or fasteners.

[0034] As shown in Figure 8B, the reinforcing rods 142 may be arranged so as not to overlap with the wooden beams 122 in the vertical direction, or they may be arranged to penetrate the wooden beams 122 (Figure 8C). In the former case, the reinforcing rods 142 may be separated from the wooden beams 122 or may be in contact with the wooden beams 122. If the reinforcing material 140 includes multiple reinforcing rods 142, some may penetrate the wooden beams 122, while other parts may not overlap with the wooden beams 122 in the vertical direction. Also, if the reinforcing material 140 includes multiple reinforcing rods 142, two reinforcing rods 142 may overlap in a direction parallel to the extension direction of the wooden beams 122 (see Figure 8A).

[0035] As described above, the beam 120 provided in the structure 100 according to one embodiment of the present invention includes a wooden beam 122, but a reinforcing member 140 is provided at the boundary between the W section and the RC section, including at least one pair of reinforcing plates 140-1 and 140-2 that sandwich the wooden beam 122 vertically. This prevents bearing failure of the wooden beam 122. This means that by applying the embodiment of the present invention, it is possible to provide a structure with high strength even when using a hybrid beam that includes a wooden beam 122.

[0036] Furthermore, by using wooden beams instead of steel frames, it is possible to construct a hybrid beam with superior design. Since a portion of the wooden beams 122 that make up beam 120 are exposed from the concrete 130, the warmth inherent in wood can be provided to the interior, and a relaxing effect can be obtained. Moreover, since wood is a product of carbon dioxide fixation through plant photosynthesis, applying the embodiments of the present invention can contribute to the reduction of carbon dioxide, a greenhouse gas.

[0037] <Second Embodiment> In this embodiment, a reinforcing member 144, which has a different structure from the reinforcing member 140 described in the first embodiment, will be described. Configurations that are the same as or similar to those described in the first embodiment may be omitted from the description.

[0038] As shown in Figure 9A and the schematic diagram of the end face along the dashed line EE' (Figure 9B), the reinforcing member 144 according to this embodiment differs from the reinforcing member 140 of the first embodiment, which includes a plurality of reinforcing plates (for example, a pair of reinforcing plates 140-1, 140-2), in that it includes a plurality of first screws 144-1 arranged on the upper surface of the wooden beam 122, and a plurality of second screws 144-2 arranged on the lower surface of the wooden beam 122. Each of the first screws 144-1 and the second screws 144-2 is made of iron and comprises a threaded portion 144a and a head 144b connected to the threaded portion 144a (see the enlarged view in Figure 9B). The threaded portion 144a may or may not have threads formed on it. Although not shown, the head 144b may have a notch (drive part) that engages with a screwdriver, or it may have a polygonal shape that engages with a wrench or the like. The number of first screws 144-1 and the number of second screws 144-2 can be appropriately determined according to the size of the first screws 144-1 and the second screws 144-2, the width of the wooden beam 122, etc. For example, they can be selected within the range of 3 to 10 for each. The number of first screws 144-1 and the number of second screws 144-2 may be the same or different. The pitch of the first screws 144-1 and the pitch of the second screws 144-2 may also be the same or different.

[0039] As can be seen from Figures 9A and 9B, the first screw 144-1 and the second screw 144-2 are driven into the wooden beam 122 such that a portion of the threaded portion 144a is exposed from the wooden beam 122. Therefore, the head 144b does not come into contact with the wooden beam 122 and is separated from it. The length L of the threaded portion 144a exposed from the wooden beam 122 can be, for example, 1 cm to 5 cm. In addition, the first screw 144-1 and the second screw 144-2 are positioned such that a portion of the head 144b is exposed from the reinforced concrete 124 and a portion is covered by the reinforced concrete 124 (see Figure 9A). Therefore, the bearing pressure on the wooden beam 122 is distributed by the heads 144b of the multiple first screws 144-1 and second screws 144-2. Furthermore, since the head 144b does not come into contact with the wooden beam 122 when bearing pressure is applied, the wooden beam 122 is prevented from sinking into the head 144b and from being damaged as a result. In addition, even when bearing pressure is applied, the first screw 144-1 and the second screw 144-2 can move further toward the wooden beam 122, so it is possible to absorb a portion of the bearing pressure by the movement of the first screw 144-1 and the second screw 144-2. For this reason, even when using the reinforcing material 144 according to the embodiment of the present invention, bearing pressure failure of the wooden beam 122 is prevented.

[0040] The embodiments described above as examples of the present invention can be combined and implemented as appropriate, insofar as they do not contradict each other. Additions, deletions, or design modifications of components based on these embodiments, made by those skilled in the art, are also included within the scope of the present invention, as long as they retain the essence of the invention.

[0041] Any effects or benefits other than those brought about by the embodiments described above, if they are clear from the description herein or easily predictable to those skilled in the art, are naturally understood to be brought about by the present invention. [Explanation of Symbols]

[0042] 100: Structural element, 110: Column, 110-1: First column, 110-2: Second column, 110-3: Third column, 110-4: Fourth column, 110-5: Fifth column, 110-6: Sixth column, 112: Main column reinforcement, 114: Stirrups, 116: Concrete, 120: Beam, 120-1: First beam, 120-2: Second beam, 120-3: Third beam, 120-4: Fourth beam, 122: Wooden beam, 122a: Surface, 124: Reinforced concrete, 124-1: First reinforced concrete T, 124-2: Second reinforced concrete, 126: Main beam reinforcement, 126a: Anchorage plate, 128: Transverse reinforcement, 130: Concrete, 132: Insertion bar, 140: Reinforcement material, 140-1: Reinforcement plate, 140-2: Reinforcement plate, 140-3: Reinforcement plate, 140-4: Reinforcement plate, 140a: Opening, 140b: Surface, 142: Reinforcement rod, 144: Reinforcement material, 144-1: First screw, 144-2: Second screw, 144a: Threaded part, 144b: Head, 150: Floor slab

Claims

1. A pair of pillars, Wooden beams connected to the aforementioned pair of columns, A pair of reinforced concrete structures are arranged to cover the first and second ends of the wooden beam, respectively, and to expose the wooden beam between the first and second ends, and Each of the two reinforced concrete structures comprises a pair of reinforcing members that are partially covered by the pair of reinforced concrete structures, A structure comprising a first reinforcing plate and a second reinforcing plate, each of the pair of reinforcing members, which are in contact with the upper and lower surfaces of the wooden beam, respectively, and are partially covered by the reinforced concrete.

2. The structure according to claim 1, wherein the widths of the first reinforcing plate and the second reinforcing plate are greater than or equal to the width of the wooden beam.

3. Each of the pair of reinforcing members further includes a third reinforcing plate and a fourth reinforcing plate that are in contact with the side surface of the wooden beam, The structure according to claim 1, wherein the third reinforcing plate and the fourth reinforcing plate are both fixed to the first reinforcing plate and the second reinforcing plate such that the reinforcing material surrounds the wooden beam.

4. The structure according to claim 1, wherein each of the pair of reinforcing members further includes at least one reinforcing rod connecting the first reinforcing plate and the second reinforcing plate.

5. The at least one reinforcing rod includes a plurality of reinforcing rods, The structure according to claim 4, wherein at least one of the plurality of reinforcing rods penetrates the wooden beam.

6. One of the pair of reinforced concrete members extends from one side of the pair of columns toward the other column in the direction in which the wooden beam extends, The structure according to claim 1, wherein the other of the pair of reinforced concrete members extends in the direction toward the one of the pair of columns from the side surface of the other member.

7. The structure according to claim 1, wherein the beam extends from the side surfaces of the pair of columns.

Images