Corner part reinforcing member, and corner part reinforcing structure

Abstract

To solve the problems of the prior art, namely, to provide a corner part reinforcing member capable of reinforcing a corner part without performing fillet bonding in a field at a place where an operator cannot see, and a corner part reinforcing structure reinforced by the corner part reinforcing member.SOLUTION: The corner part reinforcing member is a member for reinforcing the corner part formed by a first base material and a second base material, and is provided with a body plate including a first flat plate, a second flat plate, and an intermediate flat plate, and a sub-plate bonded and fixed to the first flat plate. When viewed from the side of the corner part reinforcing member, the sub-plate protrudes toward the intermediate flat plate side from the connecting part between the first flat plate and the intermediate flat plate. A portion of the sub-plate protruding from the connecting part between the first flat plate and the intermediate flat plate, and a place sandwiched by the intermediate flat plate are fixed by fillet bonding.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a reinforcement technology for corners formed by two members, and more specifically to a corner reinforcement material consisting of a main plate and a sub-plate adhesively fixed to a part of the main plate, and a corner reinforcement structure reinforced by this corner reinforcement material. [Background technology]

[0002] Bridges are classified into various types. For example, when it comes to deck type, they can be broadly divided into concrete deck bridges, steel-concrete composite deck bridges, and steel deck bridges. Of these, steel deck bridges are primarily composed of main girders and steel decks, and the steel decks are formed by steel deck plates (e.g., steel plates) and longitudinal and transverse ribs that stiffen the steel deck plates. Steel deck bridges are lighter than concrete decks and steel-concrete composite decks, making them more earthquake-resistant. Since they do not use concrete, on-site construction time is shorter, and they are also advantageous in terms of maintenance because the concrete does not peel off after use. For these reasons, steel deck bridges are often used for viaducts and long-span bridges in urban areas.

[0003] Urban expressways, which make extensive use of viaducts within cities, support a large volume of traffic every day, with an extremely high proportion of large vehicles. This means that viaducts on urban expressways are subjected to numerous wheel loads over many years, and it is easy to imagine that fatigue damage can occur in the main components that make up the viaduct. In particular, steel decks, although sandwiched between pavement, are directly affected by wheel loads, making them prone to fatigue damage. In fact, fatigue damage has been reported in the steel decks of many urban expressways.

[0004] In recent years, it has become clear that there are certain locations on steel decks where fatigue cracks are particularly likely to occur. More specifically, many fatigue cracks have been confirmed around the welds between the steel deck plate and the longitudinal ribs, with the majority of these occurring at the welds or in the steel deck plate itself. Because a large force acts on the steel deck plate at the point where it comes into contact with the upper end of the web of the longitudinal rib, fatigue cracks are likely to occur from this point onward. One type of fatigue crack propagates toward the weld, while another propagates toward the steel deck plate.

[0005] Various reinforcement techniques have been proposed to prevent fatigue cracks in steel decks. For example, Patent Document 1 proposes a technique for reinforcing the joints between steel deck plates and longitudinal ribs by using reinforcing materials placed inside the longitudinal ribs. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-133320 Summary of the Invention [Problem to be solved by the invention]

[0007] 7 is a diagram illustrating the invention disclosed in Patent Document 1, where (a) is a partial cross-sectional view showing the state in which the joint between the deck plate DP and the longitudinal rib RB is reinforced by an inner reinforcement RM, and (b) is a detailed cross-sectional view showing the inner reinforcement RM. As shown in this figure, the inner reinforcement RM is a plate-like member formed, for example, by bending flat steel, and is composed of a deck plate contact surface Pa, a longitudinal rib contact surface Pc, and a connecting surface Pb that connects the deck plate contact surface Pa and the longitudinal rib contact surface Pc.

[0008] To reinforce the joint between the deck plate DP and the longitudinal rib RB with the inner reinforcement RM, the deck plate contact surface Pa is adhesively fixed to the underside of the deck plate DP, and the longitudinal rib contact surface Pc is adhesively fixed to the inside surface of the longitudinal rib RB, as shown in Figure 8(a). In this way, the inner reinforcement RM is placed inside the "closed area" surrounded by the deck plate DP and the longitudinal rib RB, and as a result, a "deformation suppression area" is formed in which deformation of the deck plate DP and the longitudinal rib RB is suppressed.

[0009] Furthermore, as shown in Figure 8(a), it is desirable to glue and fix so-called "fillets" that form a roughly triangular shape in cross section on both sides (left and right in the figure) of the deck plate contact surface Pa, and also glue and fix fillets on both sides (top and bottom in the figure) of the longitudinal rib contact surface Pc. This gluing work is performed on-site. However, when it comes to the areas to be glued on the back side of the inner reinforcement RM, workers cannot visually inspect the condition of the fillet adhesive, and they often finish the work without knowing whether the adhesive has formed the proper shape, as shown in Figure 8(a). When inspecting the actual condition after the work, some areas were glued and fixed with an improper shape, and in some areas the fillet adhesive had deformed (drooped) due to gravity, as shown in Figure 8(b). In such cases, sufficient reinforcement effect cannot be expected.

[0010] So far, we have explained the example of the joint between the deck plate DP and the longitudinal rib RB in a steel deck of a bridge, but the inner reinforcement RM in Cited Document 1 can reinforce not only steel decks but also "corners" where two members are joined. When adhesively fixing the inner reinforcement RM to such corners, it is inevitable that an undesirable adhesive shape will occur, as shown in Figure 8(b).

[0011] The object of the present invention is to solve the problems of the prior art, that is, to provide a corner reinforcement material that can reinforce corners in areas that are not visible to workers without fillet gluing on-site, and a corner reinforcement structure reinforced with this corner reinforcement material. [Means for solving the problem]

[0012] The present invention is based on the unconventional idea of ​​constructing a corner reinforcement material using a main plate and a secondary plate, and completing the fillet adhesion between the main plate and the secondary plate in advance at a factory or the like.

[0013] The corner reinforcement of the present invention is a component for reinforcing a corner formed by a first base material and a second base material. It comprises a main plate including a first flat plate, a second flat plate, and an intermediate flat plate, and a sub-plate adhesively fixed to the first flat plate. The main plate is connected to the first flat plate at one end of the intermediate flat plate and to the second flat plate at the other end of the intermediate flat plate. Furthermore, the first flat plate is arranged substantially parallel (including parallel) to the orientation of the first base material, and the second flat plate is arranged substantially parallel (including parallel) to the orientation of the second base material. When viewed from the side of the corner reinforcement, the sub-plate protrudes toward the intermediate flat plate beyond the connection between the first flat plate and the intermediate flat plate. The portion of the sub-plate that protrudes beyond the connection between the first flat plate and the intermediate flat plate and the portion sandwiched between the intermediate flat plates are fixed by fillet adhesive.

[0014] The corner reinforcement of the present invention may have a sub-plate that protrudes beyond the end of the first flat plate in a side view. In this case, the portion of the sub-plate that protrudes beyond the end of the first flat plate is fixed to the end face of the first flat plate by fillet bonding.

[0015] The corner reinforcement of the present invention may also include a first sub-plate adhesively fixed to the first flat plate and a second sub-plate adhesively fixed to the second flat plate. In this case, the first sub-plate protrudes toward the middle flat plate from the connection between the first flat plate and the middle flat plate in side view, and the portion of the first sub-plate that protrudes from the connection between the first flat plate and the middle flat plate and the portion sandwiched by the middle flat plate are fixed by fillet bonding. Similarly, the second sub-plate protrudes toward the middle flat plate from the connection between the second flat plate and the middle flat plate in side view, and the portion of the second sub-plate that protrudes from the connection between the second flat plate and the middle flat plate and the portion sandwiched by the middle flat plate are fixed by fillet bonding.

[0016] The corner reinforcement of the present invention may be configured such that the first sub-plate protrudes beyond the end of the first flat plate in side view, and the second sub-plate protrudes beyond the end of the second flat plate in side view. In this case, the portion of the first sub-plate that protrudes beyond the end of the first flat plate is fixed to the end face of the first flat plate by fillet welding, and the portion of the second sub-plate that protrudes beyond the end of the second flat plate is fixed to the end face of the second flat plate by fillet welding.

[0017] The corner reinforcement structure of the present invention is a structure in which a corner is reinforced by a corner reinforcement material including a main plate and a sub-plate. The sub-plate is adhesively fixed to a first base material, and a second flat plate is adhesively fixed to a second base material.

[0018] The corner reinforcement structure of the present invention can also be a structure in which the corner is reinforced by a corner reinforcement member including a main plate, a first sub-plate, and a second sub-plate. In this case, the sub-plate is adhesively fixed to the first base material, and the second sub-plate is adhesively fixed to the second base material.

[0019] The corner reinforcement structure of the present invention may also be configured such that the first base material and the first flat plate are joined with bolts, and the second base material and the second flat plate are joined with bolts. [Effects of the Invention]

[0020] The corner reinforcing member and corner reinforcing structure of the present invention have the following effects. (1) The fillet joint between the main plate and the sub-plate is completed in advance at a factory, etc., so there is no need to perform fillet jointing on-site in areas that workers cannot see. As a result, visual inspection can be avoided, quality defects can be avoided, and the phenomenon of deformation (sagging) of the fillet joint due to gravity can be suppressed. (2) The inventors of the present application conducted an analysis and found that the vertical stress (i.e., the force that tends to cause separation) generated in the corner reinforcement material fixed to the base material was reduced compared to the invention of Patent Document 1. (3) Since the work is done on the underside of the steel deck plate, there is no need to restrict traffic. In addition, the steel deck plate does not need to be modified, such as by creating bolt holes, and reinforcement can be achieved mainly through adhesive bonding, making the work relatively easy. [Brief explanation of the drawings]

[0021] [Figure 1] (a) is a partial cross-sectional view showing the corner formed where the steel deck plate and longitudinal rib are joined, and (b) is a partial cross-sectional view showing the corner formed by a typical first base material and second base material. [Figure 2] (a) is an exploded cross-sectional view showing the corner reinforcement before completion, and (b) is a cross-sectional view showing the corner reinforcement after completion. [Figure 3] (a) is an exploded cross-sectional view showing the state before completion of a corner reinforcement having a first sub-plate and a second sub-plate, and (b) is a cross-sectional view showing the state after completion of a corner reinforcement having a first sub-plate and a second sub-plate. [Figure 4] 1 is a cross-sectional view showing a corner reinforcement structure of the present invention. [Figure 5] Graph showing vertical stress in the adhesive layer when loading is applied from above the first base material. [Figure 6] Graph showing the minimum vertical stress in the adhesive layer when loading is applied from above the first base material. [Figure 7] (a) is a partial cross-sectional view showing the connection between the steel deck plate and the longitudinal rib reinforced by an inner reinforcement, and (b) is a detailed cross-sectional view showing the inner reinforcement. [Figure 8] (a) is a partial cross-sectional view showing a properly shaped fillet weld on both sides of the deck plate joint surface and the longitudinal rib joint surface, and (b) is a partial cross-sectional view showing a deformed fillet weld on one end side of the deck plate joint surface. DETAILED DESCRIPTION OF THE INVENTION

[0022] An example of an embodiment of the corner reinforcing material and corner reinforcing structure of the present invention will be described with reference to the drawings.

[0023] 1. Corner reinforcement First, we will explain the corner reinforcement material of the present invention. Note that the corner reinforcement structure of the present invention is a structure in which a corner is reinforced by the corner reinforcement material of the present invention. Therefore, we will first explain the corner reinforcement material of the present invention, and then explain the corner reinforcement structure of the present invention.

[0024] The corner reinforcement of the present invention is a component that reinforces a "corner." Here, a corner is a portion formed by a first base material MT1 and a second base material MT2, as shown in Figure 1, and more specifically, a portion formed as a result of joining the first base material MT1 and the second base material MT2. For example, Figure 1(a) shows a portion of a steel deck, where the steel deck plate corresponds to the first base material MT1 and the longitudinal rib corresponds to the second base material MT2, and the corner is formed where the steel deck plate and the longitudinal rib are joined.

[0025] In addition, in Figure 2(b), the second base material MT2 is positioned approximately perpendicular to the first base material MT1, and the first base material MT1 and the second base material MT2 are joined with the end (top end in the figure) of the second base material MT2 abutting against the first base material MT1. A corner is formed at the joint between the first base material MT1 and the second base material MT2. Thus, the "corner" of the present invention is not limited to bridge structures, nor is it limited to joints between steel deck plates and longitudinal ribs. It applies to "corner" of any structure formed by the first base material MT1 and the second base material MT2. However, for convenience, the following description will be given using an example in which the first base material MT1 is a steel deck plate and the second base material MT2 is a longitudinal rib.

[0026] FIG. 2 shows a corner reinforcement 100 of the present invention. (a) is an exploded cross-sectional view of the corner reinforcement 100 before completion, and (b) is a cross-sectional view of the corner reinforcement 100 after completion. As shown in this figure, the corner reinforcement 100 is composed of a main plate 110 and a sub-plate 120. The main plate 110 is a plate-shaped member composed of a first flat plate 111, a second flat plate 112, and an intermediate flat plate 113, and can be formed, for example, by bending flat steel. More specifically, the first flat plate 111 is connected to one end of the intermediate flat plate 113 (upper right in the figure), and the second flat plate 112 is connected to the other end of the intermediate flat plate 113 (lower left in the figure). 1, when the main body plate 110 is viewed from the side, the first flat plate 111, the second flat plate 112, and the intermediate flat plate 113 are arranged so that the orientation of the first flat plate 111 (left-right in the figure) differs from the orientation of the intermediate flat plate 113 (inclined from upper right to lower left in the figure), and so that the orientation of the second flat plate 112 (inclined from upper left to lower right in the figure) differs from the orientation of the intermediate flat plate 113. As will be described later, the first flat plate 111 is adhesively fixed to the first base material MT1, and the second flat plate 112 is adhesively fixed to the second base material MT2, so that the first flat plate 111 is arranged approximately parallel (including parallel) to the orientation of the first base material MT1, and the second flat plate 112 is arranged approximately parallel (including parallel) to the orientation of the second base material MT2.

[0027] The sub-plate 120, like the main plate 110, is a plate-like member, and can be made of, for example, flat steel. The main plate 110 and the sub-plate 120 can be made of various materials, such as synthetic resin and wood, as long as they are strong enough, not just steel. As shown in FIG. 2(b), the sub-plate 120 is adhesively fixed to the outer surface of the first flat plate 111 of the main plate 110. The length (i.e., plate width) of the sub-plate 120 in a side view is longer than the length (plate width) of the first flat plate 111 in a side view. The sub-plate 120 is positioned so that it protrudes toward the middle plate 113 (left side in the figure) beyond the connection (hereinafter referred to as the "first connection end CN1") between the first flat plate 111 and the middle plate 113. In other words, the portion of the sub-plate 120 that does not contact the first flat plate 111 is positioned toward the middle plate 113 (left side in the figure). Furthermore, the sub-plate 120 can be arranged so that it protrudes (to the right in the figure) beyond the end of the first flat plate 111 (hereinafter referred to as the "first end EG1"), in other words, so that the part of the sub-plate 120 that does not contact the first flat plate 111 is located outside the first end EG1 (to the right in the figure).

[0028] When adhesively fixing the sub-plate 120 to the first flat plate 111, an adhesive is applied to the contact surfaces of both plates. Various conventional adhesives can be used. In particular, when the main plate 110 and the sub-plate 120 are made of steel, a highly durable adhesive for steel members is preferably used. As described above, the sub-plate 120 is positioned so as to form a portion that does not contact the first flat plate 111 and that protrudes toward the intermediate flat plate 113 beyond the first connection end CN1 (hereinafter referred to as the "first connection protrusion"). As shown in FIG. 2(b), an adhesive is also applied to the space between the first connection protrusion and the intermediate flat plate 113 (hereinafter referred to as the "first connection space SC1"). Specifically, since the first connection space SC1 has a roughly triangular shape when viewed from the side, the adhesive is applied in a fillet-like manner (hereinafter referred to as "fillet adhesion") to fill the triangular shape.

[0029] As described above, the sub-plate 120 can also be arranged so as to form a portion that does not contact the first flat plate 111 and that protrudes outward from the first end EG1 (hereinafter referred to as the "first outer protrusion"). As shown in FIG. 2(b), adhesive is also applied to the space (hereinafter referred to as the "first outer space SE1") sandwiched between this first outer protrusion and the end face (so-called "end face") of the first end EG1. Specifically, since the first outer space SE1 has a roughly triangular shape when viewed from the side, fillet bonding is performed to fill the triangular shape.

[0030] The corner reinforcement 100 of the present invention may also have a first sub-plate 121 and a second sub-plate 122, as shown in FIG. 3. FIG. 3 shows the corner reinforcement 100 having the first sub-plate 121 and the second sub-plate 122. (a) is an exploded cross-sectional view of the corner reinforcement 100 before completion, and (b) is a cross-sectional view of the corner reinforcement 100 after completion. As shown in FIG. 3(b), the first sub-plate 121 is adhesively fixed to the outer surface of the first flat plate 111 of the main plate 110, and the second sub-plate 122 is adhesively fixed to the outer surface of the second flat plate 112 of the main plate 110. The first sub-plate 121 shown in FIG. 3 corresponds to the sub-plate 120 shown in FIG. 2. Therefore, the second sub-plate 122 will be described in detail below.

[0031] The second sub-plate 122, like the main plate 110 and the sub-plate 120 (i.e., the first sub-plate 121), is a plate-like member, and can be made of, for example, flat steel. Alternatively, various materials, such as synthetic resin or wood, can be used as long as they have sufficient strength. The length of the second sub-plate 122 when viewed from the side (i.e., the plate width) is longer than the length of the second flat plate 112 when viewed from the side (i.e., the plate width). The second sub-plate 122 is arranged so that it protrudes toward the middle flat plate 113 (upper side in the figure) beyond the connection portion (hereinafter referred to as the "second connection end CN2") between the second flat plate 112 and the middle flat plate 113. In other words, the portion of the second sub-plate 122 that does not contact the second flat plate 112 is arranged so that it is located toward the middle flat plate 113 (upper side in the figure). Furthermore, the second sub-plate 122 can be arranged so that it protrudes (below in the figure) beyond the end of the second flat plate 112 (hereinafter referred to as the "second end EG2"), in other words, so that the part of the second sub-plate 122 that does not contact the second flat plate 112 is located outside (below in the figure) the second end EG2.

[0032] When the second sub-plate 122 is bonded and fixed to the second flat plate 112, an adhesive is applied to the contact surfaces of both plates. Various conventional adhesives can be used. In particular, when the main plate 110 and the second sub-plate 122 are made of steel, a highly durable adhesive for steel members is preferably used. As described above, the second sub-plate 122 is positioned so as to form a portion that does not contact the second flat plate 112 and that protrudes toward the intermediate flat plate 113 beyond the second connection end CN2 (hereinafter referred to as the "second connection protrusion"). As shown in FIG. 3(b), an adhesive is also applied to the space between this second connection protrusion and the intermediate flat plate 113 (hereinafter referred to as the "second connection space SC2"). Specifically, the second connection space SC2 has a roughly triangular shape when viewed from the side, and fillet bonding is performed to fill the triangular shape.

[0033] As described above, the second sub-plate 122 can also be arranged so that it has a portion that does not contact the second sub-plate 122 and that protrudes outward from the second end EG2 (hereinafter referred to as the "second outer protrusion"). As shown in FIG. 3(b), adhesive is also applied to the space between this second outer protrusion and the end face of the second end EG2 (hereinafter referred to as the "second outer space SE2"). Specifically, the second outer space SE2 has a roughly triangular shape when viewed from the side, and fillet bonding is performed to fill the triangular shape.

[0034] 2. Corner reinforcement structure Next, the corner reinforcement structure of the present invention will be described with reference to the drawings. The corner reinforcement structure of the present invention is a structure in which a corner is reinforced by the corner reinforcement member 100 described so far. Therefore, we will avoid overlapping explanations with those described for the corner reinforcement member 100 and will only describe the details unique to the corner reinforcement structure of the present invention. In other words, the details not described here are the same as those described in "1. Corner Reinforcement Member."

[0035] Figure 4 is a cross-sectional view showing a corner reinforcement structure 200 of the present invention. As shown in this figure, the corner reinforcement structure 200 of the present invention is a structure in which a corner reinforcement member 100 of the present invention is installed in a "corner" formed by a first base material MT1 and a second base material MT2. More specifically, a sub-plate 120 is adhesively fixed to the first base material MT1, and a second flat plate 112 is adhesively fixed to the second base material MT2, thereby installing the corner reinforcement member 100 in the corner. In this way, the corner reinforcement member 100 can reinforce the corner formed by the first base material MT1 and the second base material MT2.

[0036] While Figure 4 shows a corner reinforcement structure 200 in which the corner reinforcement 100 shown in Figure 2, i.e., the corner reinforcement 100 having one sub-plate 120, is installed in a corner, it is of course also possible to form the corner reinforcement structure 200 by installing the corner reinforcement 100 shown in Figure 3, i.e., the corner reinforcement 100 having a first sub-plate 121 and a second sub-plate 122 in a corner. In this case, the corner reinforcement 100 is installed in the corner by adhesively fixing the first sub-plate 121 to the first base material MT1 and adhesively fixing the second sub-plate 122 to the second base material MT2.

[0037] 4, the corner reinforcement structure 200 can be constructed by adhesively fixing the second flat plate 112 (or the second sub-plate 122) to the second base material MT2, and then joining (stitching) the second base material MT2 and the second flat plate 112 (or the second sub-plate 122) with bolts 210. Furthermore, in addition to (or instead of) joining the second base material MT2 and the second flat plate 112 (or the second sub-plate 122) with the bolts 210, the sub-plate 120 (first sub-plate 121) can be adhesively fixed to the first base material MT1, and then joining the first base material MT1 and the sub-plate 120 (first sub-plate 121) with the bolts 210.

[0038] (Finite element analysis results) The following describes the results of an analysis performed by the inventors of the present invention using the finite element method to confirm the effects of the present invention. Figure 5 is a graph showing the vertical stress in the adhesive layer when a load is applied directly from above the first base material MT1, and Figure 6 is a graph showing the minimum vertical stress in the adhesive layer when a load is applied from above the first base material MT1. In Figure 5, the horizontal axis represents the distance from the first connection end CN1, and the vertical axis represents the vertical stress in the adhesive layer. In Figure 6, the horizontal axis represents each of the following cases, the vertical axis on the left represents the minimum vertical stress in the adhesive layer for each case, and the vertical axis on the right represents the ratio of each case to the minimum vertical stress in the adhesive layer for CASE01. Note that the vertical stress in the adhesive layer in Figures 5 and 6 is negative in the downward direction, so the smaller the value, the greater the absolute value.

[0039] The cases in Figures 5 and 6 are as follows: CASE01: In a case where the sub-plate 120 is not provided and only the main plate 110 (i.e., the inner reinforcement material RM of Patent Document 1) is used for reinforcement, and no fillet bonding is applied to the first connection space SC1 (Figure 2), the vertical stress in the adhesive layer between the first base material MT1 and the inner reinforcement material RM was calculated. CASE02: In a case where the sub-plate 120 was not provided and the main plate 110 was reinforced only (i.e., the inner reinforcement material RM of Patent Document 1), and fillet bonding was applied to the first connection space SC1 (Figure 2), the vertical stress in the adhesive layer between the first base material MT1 and the inner reinforcement material RM was calculated. CASE03: In a case reinforced with the corner reinforcement material 100 of the present invention, the vertical stress in the adhesive layer between the first base material MT1 and the sub-plate 120 was calculated. CASE04: In a case reinforced with the corner reinforcement member 100 of the present invention, the vertical stress in the adhesive layer between the sub-plate 120 and the first flat plate 111 was calculated. CASE05: Similar to CASE01, but calculated using a coarser division along the horizontal axis (Figure 5) than CASE01. CASE06: Similar to CASE02, but calculations were performed after loading via rails instead of direct loading.

[0040] As can be seen from Figures 5 and 6, Case 03 and Case 04, which were reinforced with the corner reinforcement material 100 of the present invention, exhibit larger vertical stresses (smaller absolute values) than the other cases. Note that Case 03 and Case 04 have roughly the same stress distribution, so the two lines overlap in Figure 5. Specifically, the minimum vertical stress in Case 03 and Case 04 is extremely reduced to 16% of Case 01, confirming the reinforcing effect of the present invention. [Industrial Applicability]

[0041] The corner reinforcement material and corner reinforcement structure of the present invention can be used for bridges and various other structures with corners. Considering that the present invention can lead to a longer lifespan of social infrastructure such as bridges, it can be said that the invention is not only applicable to industry but can also be expected to make a significant contribution to society. [Explanation of symbols]

[0042] 100 Corner reinforcement material of the present invention 110 (corner reinforcement) body plate 111 (Main body plate) First flat plate 112 (Main plate) Second flat plate 113 (Main plate) Intermediate plate 120 (corner reinforcement) subplate 121 First Subplate (of Subplates) 122 Second subplate (of the subplate) 200 Corner reinforcement structure of the present invention 210 (corner reinforcement structure) bolt CN1 First connection end CN2 Second connection end DP Deck Plate EG1 1st end EG2 2nd end MT1 First base material MT2 2nd base material Pa (Inner reinforcement) Deck plate splice surface Pb (internal reinforcement) connection surface Pc (inner reinforcement) longitudinal rib attachment surface RB vertical rib RM inner reinforcement SC1 First connection space SC2 Second Connection Space SE1 1st outer space SE2 2nd outer space

Claims

1. A member for reinforcing a corner formed by a first base material and a second base material, a main body plate including a first flat plate, a second flat plate, and an intermediate flat plate; a sub-plate adhesively fixed to the first flat plate, The first plate is connected to one end of the intermediate plate, and the second plate is connected to the other end of the intermediate plate, The main body plate has a shape in which the first flat plate is arranged parallel or approximately parallel to a direction of the first base material, and the second flat plate is arranged parallel or approximately parallel to a direction of the second base material, the sub-plate in a side view protrudes toward the intermediate plate beyond a connection portion between the first plate and the intermediate plate in a side view, The portion sandwiched between the sub-plate protruding from the connection portion between the first plate and the intermediate plate and the intermediate plate is fixed by fillet bonding. A corner reinforcement material characterized by:

2. The sub-plate in a side view protrudes beyond an end of the first flat plate in a side view, The sub-plate protruding beyond the end of the first flat plate and the end surface of the first flat plate are fixed by fillet bonding.

2. The corner reinforcement according to claim 1.

3. A member for reinforcing a corner formed by a first base material and a second base material, a main body plate consisting of a first flat plate, a second flat plate, and an intermediate flat plate; a first sub-plate adhesively fixed to the first flat plate; a second sub-plate adhesively fixed to the second flat plate, The main body plate has a shape in which the first flat plate is arranged parallel or approximately parallel to a direction of the first base material, and the second flat plate is arranged parallel or approximately parallel to a direction of the second base material, The first sub-plate in a side view protrudes toward the intermediate plate beyond a connection portion between the first plate and the intermediate plate in a side view, The portion sandwiched between the first sub-plate protruding from the connection portion between the first flat plate and the intermediate flat plate and the intermediate flat plate is fixed by fillet bonding, The second sub-plate in a side view protrudes toward the intermediate plate beyond a connection portion between the second plate and the intermediate plate in a side view, The portion sandwiched between the second sub-plate protruding from the connection portion between the second flat plate and the intermediate flat plate and the intermediate flat plate is fixed by fillet bonding. A corner reinforcement material characterized by:

4. The first sub-plate in a side view protrudes beyond an end of the first flat plate in a side view, The first sub-plate protruding beyond the end of the first flat plate and the end surface of the first flat plate are fixed by fillet bonding, The second sub-plate in a side view protrudes beyond an end of the second flat plate in a side view, The second sub-plate protruding from the end of the second flat plate and the end surface of the second flat plate are fixed by fillet bonding.

4. The corner reinforcement according to claim 3.

5. A structure in which the corner is reinforced by the corner reinforcing material according to claim 1, The sub-plate is adhesively fixed to the first base material, and the second flat plate is adhesively fixed to the second base material. A corner reinforcement structure characterized by:

6. A structure in which the corner is reinforced by the corner reinforcing member according to claim 3, The first sub-plate is adhesively fixed to the first base material, and the second sub-plate is adhesively fixed to the second base material. A corner reinforcement structure characterized by:

7. The first base material and the first flat plate, and / or the second base material and the second flat plate are bolted together.

7. The corner reinforcement structure according to claim 5 or 6.

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