JP5869802B2 - Wall-type structure of reinforced concrete structure and construction method thereof - Google Patents

Description

  The present invention relates to a wall-type structure in a reinforced concrete structure and a method for constructing a reinforced concrete structure constructed with the wall-type structure.

  As is well known, the wall-type structure in a reinforced concrete structure (RC structure) is different from that in which a pillar and a beam are used as the basic structure, such as a ramen structure. Is constructed as a basic component, and at the intersections where the bearing walls and wall beams intersect, the internal reinforcing bars are bent in an L-shape, and the reinforcing bars are further arranged. In addition, by placing the concrete, a reinforced concrete having an L shape or a T shape in plan view is constructed. In addition, inside the member constituting the vertical surface portion such as the load bearing wall, a main bar having an axis line in the horizontal direction is disposed, but this main bar is bent for fixing and is more than the bent portion. The tip part was placed in the intersection as a fixing part. Therefore, the reinforcing bars are concentrated at the intersection, and the filling state of the cast concrete may be insufficient in some cases.

  In addition, in a concrete wall-floor type structure (a structure that supports the force applied to the frame by the wall slab and the floor slab), a configuration for strengthening the intersection has been proposed (see Patent Document 1). It was a technique to prevent slippage due to adhesion failure of concrete around the reinforcing bars. And the content is what inserts a restraint bar | burr in the crossing part of a wall slab and a floor slab, and was not aiming at the structural strengthening of the crossing part itself.

JP 2009-7759 A JP-A-11-200558 JP 2001-159214 A

  As described above, when constructing a well-known wall-type structure, in order to construct an intersection using folded reinforcing bars, the reinforcing bars used for the intersection are folded at the construction site, Or it was necessary to carry in the reinforcing bar bent beforehand at the time of factory shipment. The same applies to the case where the fixing portion is formed by bending the main bars used for the bearing wall. Therefore, it is not easy to bend large-diameter rebars at the construction site, and even if pre-folded rebars are loaded, transportation itself is easy depending on the angle of folding and the length of both sides of the bend. It wasn't.

  Further, when fixing without bending the main bars, the fixing strength is not maintained unless the normal fixing length is 40 times the diameter of the fixing bars (this is indicated as 40d) or more. Therefore, when using a reinforcing bar formed with an outer diameter of 12 mm, a fixing length of 480 mm or more is required, and in order to use a reinforcing bar with an outer diameter of 20 mm, a fixing length of 800 mm is required. It was supposed to be. Therefore, in the wall-type structure, it has been practically difficult to fix the structural members such as the bearing walls at the intersections.

  By the way, it is very difficult to calculate the strength (structure calculation) of the intersection in the wall type structure of reinforced concrete, and when using a part of the main reinforcement as the anchorage, the calculated strength and the strength of the actual structure are the same. It was not easy to verify whether they were doing it. As a result, statutory building standards and other guidelines have traditionally secured fixing strength with a sufficient fixing length. However, recently, actual strength has been determined to satisfy the specified strength through strength experiments. If it becomes clear, the strength calculation (structure calculation) can be omitted. In other words, if the strength of the intersection is ensured in a strength experiment or the like, and if the fixing strength of the fixing reinforcing bar at the intersection is sufficient, the frame is constructed by an arbitrary structure and by an arbitrary fixing position or fixing method. Is acceptable.

  Recently, a new fixing reinforcing bar has been developed, and a construction in which a fixing plate is provided at the tip of the fixing reinforcing bar is used at a construction site (see Patent Documents 2 and 3). By using such a fixing reinforcing bar, a predetermined fixing strength can be obtained while shortening the fixing length.

  The present invention has been made in view of the above-described points, and the object of the present invention is to provide a wall-type structure of a reinforced concrete structure capable of simplifying bar arrangement at an intersection while maintaining sufficient strength, and a wall. It is to provide a method for constructing a reinforced concrete structure of formula structure.

  Therefore, the present invention according to the wall type structure of a reinforced concrete structure is a reinforced concrete structure having a wall type structure in which a basic part of a frame is constituted by a reinforced concrete load-bearing wall, a floor slab and a roof slab. The crossing portion where the end portions of the frame constituent portions intersect with each other is constructed by the crossing portion constituent member, and the continuous portion forming the housing constituent portion together with a part of the crossing portion constituent member is formed continuously with the crossing portion constituent member. The continuous component member has a fixed reinforcing bar with a fixing plate at the tip, and the tip of the fixed reinforcing member is arranged inside the intersecting component member. It is characterized by.

  According to the above configuration, the intersecting portion constituting member and the continuous portion constituting member are continuously constructed with sufficient fixing strength by the fixing reinforcing bar having the fixing plate. The housing structure part containing can be comprised.

  In the above invention, the intersecting portion may be an intersecting portion where the bearing wall and the bearing wall intersect in an L shape, a T shape, or a cross shape. In this case, the part where the load-bearing wall in the wall-type structure intersects the L-shape, the part intersecting the T-shape, or the part that intersects the cross can be formed by the cross-section component member. It can comprise by a part of member and a continuous part structural member.

  In the above invention, the intersection may be an intersection where the load-bearing wall and the wall beam intersect. In this case, it is possible to construct a structure in which the load-bearing wall and the wall beam are made continuous by the cross-section member, and a part of the cross-section member can form a part of the load-bearing wall. It is also possible to connect the wall beam to a portion constituting a part of the bearing wall.

  The present invention according to the method for constructing a reinforced concrete structure having a wall structure includes a crossing portion constituting a crossing portion in which ends of a plurality of frame constituting portions constituting a part of the crossing portion cross each other, and the crossing portion. It is divided into continuous part constituent members that are continuous with the constituent members, and the cross section constituent members are to be configured in a range in which reinforcing bars that are bent according to the crossing angle of the cross parts and cross section reinforcements that are orthogonal to the reinforcing bars. A reinforcing bar group including reinforcing bars is arranged, and a predetermined reinforcing bar for the continuous part constituting member is arranged in a range where the continuous part constituting member is to be constructed, and a fixing provided with a fixing plate at the tip Reinforcing bars are arranged with the fixing plate intruding into the range where the crossing component is to be constructed, and concrete is placed in both ranges to form a frame component It is.

  According to the above configuration, the intersecting portion constituent member only arranges reinforcing bars necessary for constituting the intersecting portion, and the continuous portion constituting member includes only the reinforcing bars necessary for constituting the portion continuous to the intersecting portion. By arranging the bars, it is possible to construct the respective constituent members, and it is possible to construct an integral constituent member by fixing them with the fixing reinforcing bars. In particular, by using a fixing reinforcing bar having a fixing plate, the range necessary for fixing in the intersection portion constituting member can be reduced.

  Further, the present invention according to the method for constructing a reinforced concrete structure having a wall structure includes a crossing member constituting an intersection where ends of a plurality of load-bearing walls or wall beams intersect, and the crossing member constituting the crossing member. In the range to be divided into continuous part constituting members and to constitute the crossing part constituting members, there are a plurality of strips elongated in the direction of the beam of the frame and a plurality of strips elongated in the direction between the beams of the frame. The bars are overlapped so as to form a rectangle at the intersecting position, and vertical vertical bars that are long in the vertical direction are arranged at appropriate intervals on the inner side of the two strips. In a range to be configured, a predetermined reinforcing bar for the continuous portion constituting member is arranged, and a fixing rebar provided with a fixing plate at the tip thereof is fixed in the range to constitute the intersecting portion constituting member. The bars are placed while intruding the board, and the concrete is placed in both the above ranges. And it is characterized in that by forming a formed part.

  According to the said structure, it can avoid that the reinforcing bar for constructing a cross | intersection part member concentrates inside the said cross | intersection part member. That is, the reinforcing bars bent in an L-shape are not disposed, and the fixing portions of the wall main bars and beam main bars are not placed in the intersections. It is possible to avoid the concentration of steel bars.

  In the said invention, the said cross | intersection part structural member can be set as the structure which has the length of the column direction which can ensure the fixation length by the said fixing reinforcing bar, and the beam line direction. In the case of the above configuration, when continuously constructing a bearing wall or wall beam in the direction of beam or beam, different types of members are fixed by the fixing reinforcing bars used for the bearing wall or wall beam. It will be.

  According to the present invention relating to the wall-type structure of a reinforced concrete structure, the intersection where the frame components intersect is constructed by the intersection component, but the intersection component includes the continuous component. Since the casing constituting portion is formed by being continuous, the intersecting portion constituting member and the continuous portion constituting member can be combined to maintain sufficient strength at the intersecting portion. Furthermore, the crossing component member and the continuous component member are fixed by the fixing reinforcing bars arranged on the continuous component member, and those having a fixing plate are used for the fixing reinforcing rods. A sufficient fixing force can be exhibited even when the fixing length is 12 times (12d) to 16 times (16d) the diameter of the reinforcing bar. As a result, fixing can be performed with a very short fixing length.

  According to the present invention concerning the construction method of the reinforced concrete structure of the wall type structure, in the construction of the structural body constituting the structural body, the intersecting part structural member and the continuous part structural member are not constructed individually, but concrete By arranging the reinforcing bars after arranging the reinforcing bars for the crossing component and the continuous component at the time of the bar arrangement work before placing, the frame component is integrated. Can be built. In addition, the housing component (particularly, the intersection) constructed as described above can be configured to have sufficient strength.

  Since the strength of the intersection is sufficiently ensured as described above, the structural calculation can be facilitated by obtaining a strength exceeding the legal building standards by conducting a strength test of the frame. In addition, in order to obtain the strength exceeding the legal building standards, it is only necessary to optimize the bar arrangement density and the structure of the anchoring section based on the strength test results of the frame. With this configuration, it is possible to construct intersections on each floor.

It is explanatory drawing which shows the outline of the reinforced concrete structure of a wall type structure. It is explanatory drawing which shows embodiment concerning the wall type structure of a reinforced concrete structure. It is explanatory drawing which shows the bar arrangement state around an intersection. It is explanatory drawing which shows embodiment concerning the construction method of the reinforced concrete structure of a wall type structure. It is explanatory drawing which shows the modification of the reinforcing bar group for a cross | intersection part structural member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an outline of a reinforced concrete structure having a wall structure. As shown in this figure, the structure of the wall type structure is composed of a load-bearing wall 1 and a wall beam 2 that constitute a vertical surface portion, and a slab 3 that constitutes a horizontal surface portion. It is what. Here, the present invention is easy to construct while maintaining sufficient strength for a portion 4 (this is called an intersecting portion) that intersects in an L shape, a T shape, or a cross shape, where these housing components are concentrated. Is to do. Hereinafter, a case where two load bearing walls intersect in an L shape in plan view will be described as a representative form of the intersecting portion 4.

  FIG. 2 is a diagram showing an embodiment of the present invention according to a wall-type structure of a reinforced concrete structure. As shown in this figure, the present embodiment is composed of an intersecting portion constituting member 5 formed integrally with the intersecting portion 4 and continuous portion constituting members 6 and 7 continuous thereto. . If the case where the housing component intersects in an L shape is illustrated as an example, the intersecting portion constituting member 5 is formed in an L shape in plan view as in the intersecting state. That is, the intersecting portion constituting member 5 is configured to form an L shape by the two flat portions 52 and 53, and a first continuous portion is formed at an end portion (one end portion) of the one flat portion 52. By continuing the part component member 6, the first casing component part (bearing wall 1 a) is configured together with the one flat part 52, and the end part (the other end part) of the other flat part 53 is the second one. When the two continuous portion constituting members 7 are continued, the second casing constituting portion (bearing wall 1b) is constituted together with the other plane portion 53.

  As described above, the intersecting portion constituting member 5 is formed in an L shape in a plan view, and therefore, the center thereof intersects at a predetermined angle (vertical in the case of the L shape). In other words, the boundary portion 51 of the both-body structural portions is formed by the center of the intersecting portion constituting member 5, respectively, toward the column direction X and the beam direction Y with respect to the boundary portion 51. Short plane portions 52 and 53 are provided.

  In addition, the intersecting portion constituting member 5 and the continuous portion constituting members 6 and 7 are not limited to the case where they are constructed as completely separate independent members, and can be constructed integrally by placing concrete simultaneously. Is. The reason why the intersecting part constituting member 5 and the continuous part constituting members 6 and 7 are distinguished from each other is that the reinforcing bars for constructing these members are not integrally arranged, but the reinforcing bars for constructing the intersecting part constituting member 5. This is because the group A and the reinforcing bar groups B and C for constructing the continuous portion constituent members 6 and 7 are provided by different configurations.

  Therefore, the reinforcing bar group A for the intersecting portion constituting member 5 includes a plurality of strips 54 that are long in the beam row direction X, a plurality of strips 55 that are long in the beam row direction Y, and the strips 54 and 55. It is comprised with the vertical stripes 56 and 57 standingly arranged inside. The long streak 54 that is long in the beam direction X and the long streak 55 that is long in the beam direction Y are arranged so as to overlap inside the boundary portion 51 of the frame. It is arranged to form. A bending reinforcing bar 58 is erected on the innermost side of the apex that protrudes outwardly from the square, and is reinforced so as to resist bending stress acting on the boundary 51 (or the entire intersection 4).

  On the other hand, the reinforcing bar groups B and C for the continuous component members 6 and 7 surround the plurality of horizontal bars 61 and 71 extending in the column direction X or the beam direction Y and the horizontal bars 61 and 71. And star wraps 62 and 72 are provided. The reinforcing bar groups B and C are provided with fixing reinforcing bars 63 and 73 at appropriate positions. The fixing reinforcing bars 63, 73 are inserted into the reinforcing bar group A for the crossing component member 5 while the axis is horizontal like the horizontal bars 61, 71. Further, fixing plates 64, 74 are provided at the tips of the fixing reinforcing bars 63, 73, and the fixing plates 64, 74 are arranged so as to be positioned inside the reinforcing bar group A for the cross member 5. -ing

  As described above, the reinforcing bar group A for the intersecting part constituent member 5 and the reinforcing bar groups B and C for the continuous part constituent members 6 and 7 are formed separately, so that the continuous part configuration The fixing reinforcing bars 63 and 73 are arranged in order to fix the members 6 and 7 to the intersecting portion constituting member 5. By the way, when the fixing reinforcing bars 63 and 73 having the fixing plates 64 and 74 at the tips are used, a sufficient fixing force can be exhibited with a short fixing length. For example, when the outer diameter of the fixing plates 64 and 74 is about 2.5 times the diameter of the reinforcing bar, the fixing length at that time is 12 times the diameter of the fixing reinforcing bars 63 and 74 (this is expressed as 12d). ) To 16 times (this is expressed as 16d), a sufficient fixing force can be obtained. Although the fixing length is 12d to 16d, the fixing length may be changed depending on the configuration and strength other than the intersection. In other words, it is important that the structure of the intersection is provided with a predetermined strength by conducting a strength experiment of the entire housing or the intersection, so that if the strength is insufficient due to insufficient fixing power of the reinforcing bars, Adjustment can be performed by increasing the diameter of the fixing plates 64 and 74 or by increasing the fixing length. On the other hand, if the fixing force of the reinforcing bar is excessively strong, adjustment can be performed by further shortening the fixing length. Is also possible. These dimensions and the like are appropriately adjusted according to the result of the strength experiment or the like. The fixing length by the fixing reinforcing bars 63 and 73 indicates the length from the leading end position of the reinforcing bar group A for the intersecting portion constituting member 5 in the direction X or the beam direction Y to the fixing plates 64 and 74. is there.

  Since the wall-type structure of the present embodiment has the above-described configuration, a main bar such as a load bearing wall is not inserted into the intersecting part, and there is no fixing part where the main bar is bent. . Therefore, concentration of reinforcing bars around the intersection can be avoided by not inserting the main reinforcing bars and the fixing portions of the frame constituting parts formed on both sides of the intersection. By avoiding the concentration of the reinforcing bars, it is possible to provide a sufficient interval between the reinforcing bars arranged for constructing each component member, and to sufficiently fill the periphery of the reinforcing bars with the cast concrete. As described above, the concrete is sufficiently filled around the reinforcing bars, thereby constructing a structural member made of reinforced concrete having strength.

  In addition, by configuring a part of the casing including the intersecting portion with the intersecting portion constituting member 5 as described above, the strength of the intersecting portion depends on the strength of the intersecting portion constituting member 5. Therefore, if a sufficient strength is given to the crossing member 5, the crossing member 5 can be applied to a similar structure as it is. Further, as long as the fixing strength between the intersection portion constituting member 5 and the continuous portion constituting members 6 and 7 is sufficient, the same fixing structure can be applied to the same structure. Therefore, when constructing a structure of a plurality of floors with at least the same structure, the intersections of each floor can have the same configuration. As a result, when designing the strength of the entire building (structural calculation), it is possible to eliminate the need for detailed structural calculation by adopting the structure of the intersection with a predetermined strength. Furthermore, with respect to several types of cross-section components with different rebar diameters and various dimensions, the cross-section has a configuration that demonstrates the strength required for the structure by conducting strength experiments in advance and measuring the maximum strength of each. It is also possible to select and design components.

  Next, an embodiment of the present invention according to a method for constructing a reinforced concrete structure having a wall structure will be described. The construction method according to the present embodiment includes reinforcing bars such as main bars for each of the structural members, as in the case of constructing the structural components of a normal reinforced concrete structure (RC structure). By enclosing a predetermined range with a formwork, placing concrete in the range, and removing the formwork after the concrete has solidified, a reinforced concrete structure is constructed. Therefore, in the following, the description will focus on matters specific to the construction method according to the present invention.

  FIG. 3 is a diagram illustrating a bar arrangement state around the intersection of the present embodiment. FIG. 3A shows a state in which the reinforcing bar group A for constructing the intersecting portion constituting member and the reinforcing bar groups B and C for constructing the continuous portion constituting member are integrated, and FIG. The state which isolate | separated the said both is shown. As described in the embodiment relating to the wall-type structure, the housing component in the present invention is composed of the intersecting member and the continuous member, and the reinforcing bars for that purpose are shown in FIG. In addition, the reinforcing bar group A for the intersecting portion constituting member and the reinforcing bar groups B and C for the continuous portion constituting member are distinguished and arranged.

  These two types of reinforcing bar groups may be arranged in parallel in order to form a state after connection, in addition to the case where they are connected in an individually arranged state, while distinguishing them conceptually. . In any of the reinforcing bar arrangement methods, two types of reinforcing bar groups, that is, a reinforcing bar group A for intersecting part constituent members and reinforcing bar groups B and C for continuous part constituent members are configured at predetermined positions. As clearly shown in FIG. 3B, a plurality of fixing reinforcing bars 63 and 73 are arranged at appropriate intervals in the reinforcing bar groups B and C for the continuous portion constituting member. A part of the fixing reinforcing bars 63 and 73 is disposed so as to protrude from the reinforcing bar groups B and C by a length corresponding to a necessary fixing length. Furthermore, fixing plates 64 and 74 are provided at the protruding ends of the fixing rebars 63 and 73, respectively. Further, a part of the fixing reinforcing bars 63 and 73 protruding from the reinforcing bar groups B and C are inserted into the reinforcing bar group A for the intersection constituting member as clearly shown in FIG. It has become a state. The continuous portion constituting member is fixed to the intersecting portion constituting member by the reinforcement reinforcing bars 63 and 73.

  By the way, the reinforcing bar group A for the intersecting portion constituting member can be formed into an L shape in plan view by bending the main reinforcing bar in an L shape and arranging it horizontally. As shown in the figure, long strips 55 may be provided in different directions (for example, the beam row direction and the beam row direction), respectively, and may be arranged so as to form an L shape in plan view as a whole. On the other hand, the reinforcing bar groups B and C for the continuous component members are constituted by vertical bars and stirrup necessary for the load-bearing wall.

  Further, in the present embodiment, the state of constructing an intersection when two bearing walls intersect will be described as an example, but as a stage before the bearing wall is constructed, a foundation beam is constructed, A floor slab is built on top. After the load-bearing wall is built, the floor slab on the upper floor is built, and further, the load-bearing wall on the upper floor is built and the roof slab is built, so that the entire structure of the wall structure is built. It is what is done.

  By the way, although the crossing part shown in figure has shown the part where two load-bearing walls cross | intersect, the crossing part by a frame structure part exists in addition. For example, an intersection is also formed between the bearing wall and the floor slab. For such an intersection, the intersection constituent member can be constructed. In this case, since the load bearing wall on the lower floor is constructed first, the intersection component member is constructed so as to be continuous with the upper end of the bearing wall already constructed. At this time, a fixed reinforcing bar that protrudes upward from the upper end is pre-arranged on the bearing wall, and a reinforcing bar group for the intersecting member is arranged while including the tip of the fixed reinforcing bar inside. . Moreover, a floor slab can be constructed | assembled by the reinforcing bar group for a continuous part structural member being arranged so that it may continue to a horizontal direction to this cross | intersection part structural member. Thus, the intersection part of a load-bearing wall and a floor slab can be constituted by constructing the intersection part constituent member and the continuous part constituent member for the floor slab at the same time (concrete is placed). Is. In addition, after the floor slab of the upper floor is constructed, the entire building is constructed by constructing the load-bearing wall of the upper floor and finally constructing the roof slab.

  Next, a specific construction method will be described. As shown in FIG. 4, a reinforcing bar group A for the intersection component member is constructed (FIG. 4A), and reinforcing bar groups B and C for the continuous component member are constructed (FIG. 4B). Then, concrete is cast after providing the molds 8 and 9 in a range in which the frame constituting portion including these reinforcing bar groups A, B, and C is provided (FIG. 4C).

  The construction of the reinforcing bar group A for the intersecting part constituting member is performed by arranging the reinforcing bars necessary for the plane parts 52 and 53 (FIG. 2) on both sides where the intersecting part is formed, and at the intersecting part (the boundary part of the frame constituting part). 51) As shown in the figure, the stirrups 54 and 55 for the flat portions on both sides are overlapped at the intersecting portions so that the fours (FIG. 2) are integrally formed. When the straps 54 and 55 are used, a rectangular shape in plan view is formed by the overlapped portion, and the vertex of the rectangular shape coincides with a point that is appropriately located on the inner side from the boundary portion 51 (FIG. 2) of the frame constituting portion. The bar is arranged as you do. In addition, although it does not use the strips 54 and 55, it is also possible to arrange the reinforcing bars bent in the L shape at the intersection, but in this case, the reinforcing portions of the intersection are provided at the bent portions of the L-shaped reinforcing bars. By doing so, bending reinforcement at the intersection is performed.

  Reinforcing bar groups B and C for the continuous part constituent members are constructed by arranging the reinforcing bars necessary for forming the bearing walls 1 and 1 (FIG. 2) together with the plane parts 52 and 53 (FIG. 2) of the intersecting part constituent members. It is to be established. In the reinforcing bar groups B and C, a plurality of horizontal bars 61 and 71 whose horizontal direction is horizontal and stirrups 62 and 72 surrounding the horizontal bars 61 and 71 are arranged. Further, similarly to the horizontal bars 61 and 71, fixing reinforcing bars 63 and 73 whose longitudinal direction is horizontal are arranged inside the stirrups 62 and 72. The fixing reinforcing bars 63 and 73 are provided with fixing plates 64 and 74 at their tips, and the fixing plates 64 and 74 are arranged so as to be positioned inside the reinforcing bar group A for the cross-section constituting member. is there. At this time, the distance from the end portion of the reinforcing bar group A for the cross member constituting member to the fixing plates 64 and 74 (the length inserted into the reinforcing bar group A for the cross member constituting member) is the fixing length. When the bars are arranged in the reinforcing bar groups B and C for the continuous member, the length is adjusted so as to be 12d to 16d.

  As described above, the arrangement of the reinforcing bar groups A, B, and C for the intersecting part constituent member and the continuous part constituent member is completed, and further, the reinforcement arrangement is performed for the other frame constituent parts (and other intersecting parts). After finishing, the molds 8 and 9 are mounted and concrete is cast. When mounting the mold, as a matter of course, the cover 8 is held on the wall surface on both sides of the reinforcing bar groups A, B, C while maintaining the cover thickness with the reinforcing bars arranged in the reinforcing bar groups A, B, C. 9 are opposed to each other so that a predetermined wall thickness can be formed.

  Thus, after the bearing walls 1 and 1 (FIG. 2) including the intersection are constructed, the slab 3 (FIG. 1) is constructed, and the bearing walls on the upper floor are constructed in the same manner as described above. Thus, the entire structure is constructed.

  As described above, in the embodiment of the wall-type structure and the embodiment of the construction method of the concrete structure according to the present invention, the intersection where the frame components intersect is constituted by the intersection component 5 (FIG. 2). Therefore, the strength of the crossing portion is determined by the strength of the crossing member 5. If the strength test is performed on the crossing member 5 and it is found that the crossing member 5 has a sufficient bending strength exceeding a predetermined strength, the crossing member 5 having the configuration can be used as a module. It becomes.

  Further, the fixing reinforcing bars 63 and 73 (FIG. 2) having the fixing plates 64 and 74 (FIG. 2) are also used for the fixing strength between the intersecting part constituent member 5 and the continuous part constituent members 6 and 7 (FIG. 2). Thus, the fixing length can be shortened, and if the fixing strength at this time is found to have sufficient fixing strength exceeding a predetermined strength by the strength test, the fixing reinforcing bars 63 and 73 enable the continuous portion constituting member 6 to be fixed. , 7 can be fixed to form the housing structure.

  The excess or deficiency of the bending strength or fixing strength as described above can be adjusted by increasing / decreasing the bending reinforcing bars or vertical bars, or increasing / decreasing the fixing reinforcing bars or the length of the fixing length. Each structural component (bearing wall, wall) A structure using these reinforcing bar groups A, B, and C can be used as a module by determining the required structure and the number of reinforcing bars according to the strength required for the beam or intersection). It becomes possible.

  The embodiments of the present invention are as described above, but the present invention is not limited to these embodiments, and various modes can be taken without departing from the spirit of the present invention. For example, the intersecting portion formed at the portion where the frame constituting portion intersects is not limited to the L shape, and may intersect in a T shape or a cross shape, and if the structure of each intersecting portion constituting member 5 is appropriately changed It can also be used at various intersections. That is, at the T-shaped intersection, as shown in FIG. 5 (a), in the vicinity of the center in the longitudinal direction of one band 54, the other band 55 is overlapped so as to form a rectangle. The other reinforcing bars are arranged to constitute the reinforcing bar group A1 for the T-shaped intersection portion constituting member. If the reinforcing bar group A1 is configured in this manner, the continuous member constituting member can be continued in three directions from the reinforcing bar group A1, and the reinforcing bar group for the continuous member constituting member is disposed on each of them, thereby forming a T-shape. It is possible to construct a housing having a plurality of intersections. Further, at the cross-shaped intersection, as shown in FIG. 5 (b), both straps 54 and 55 are overlapped while intersecting each other in the vicinity of the center, and the bars are arranged so as to form a rectangle near the center. The reinforcing bar group A2 for the cross-shaped intersection portion constituting member is constituted. In this case, the continuous member can be continued in four directions.

  Furthermore, when constructing the wall beam 2 (FIG. 1) in place of the bearing walls 1 and 1, it is possible to cope with the problem by setting the continuous part constituent member continuous to the cross part constituent member to the dimension of the beam. . In this case, by shortening the vertical lengths of the stirrups 62, 72 of the continuous portion constituting members 6, 7, a wall beam having a predetermined dimension can be formed.

DESCRIPTION OF SYMBOLS 1 Load-bearing wall 2 Wall beam 3 Slab 4 Crossing part 5 Crossing part structural member 6,7 Continuous part structural member 8,9 Formwork 51 Boundary part 52,53 of a frame structural part Flat part 54,55 of a crossing structural member 56, 57 Longitudinal bars 61, 71 Horizontal bars 62, 72 Stirrup 63, 73 Fixing reinforcing bars 64, 74 Fixing plates A, B, C Reinforcing bars

Claims (6)

In a reinforced concrete structure with a wall structure in which the basic part of the frame is formed by reinforced concrete load-bearing walls, floor slabs and roof slabs, the intersections where the ends of the multiple frame components constituting the frame intersect each other A continuous part constituting member constructed by a cross part constituting member having a plurality of plane parts and continuously forming a housing constituting part together with the plane part of the cross part constituting member. The component member is provided with a fixing reinforcing bar having a fixing plate at the tip thereof, and the tip portion including the fixing length from which the fixing force is obtained is the inside of the flat portion constituting the crossing component member. A wall-type structure of a reinforced concrete structure, characterized by being arranged in a bar.   The intersecting portion is one in which the bearing wall and the bearing wall intersect in an L shape, a T shape, or a cross shape, and a boundary portion of the housing component portion is formed by the center of the intersecting portion component member, The wall-type structure of a reinforced concrete structure according to claim 1, wherein a plurality of short planar portions extending in the direction of the beam and the direction of the beam with the boundary as a boundary are provided.   The crossing part is a crossing of the load-bearing wall and the wall beam, and the boundary part of the frame structure part is formed by the center of the crossing part component member. The wall-type structure of a reinforced concrete structure according to claim 1, wherein a plurality of short planar portions directed in the direction are provided. A method for constructing a reinforced concrete structure having a wall-type structure, wherein a plurality of structural members constituting a part of the structural body intersect with each other. It is divided into a continuous part constituent member that is continuous with the part constituent member, and the range where the cross part constituent member is to be formed is bent according to the crossing angle of the cross part, and the cross part and a plurality of both sides thereof A reinforcing bar group including a reinforcing bar for the flat part and a cross reinforcing bar orthogonal to the reinforcing bar is arranged, and the range to constitute the continuous part constituting member is within a predetermined range for the continuous part constituting member. The reinforcing bar with the fixing plate at the tip is arranged while the reinforcing plate and the portion including the predetermined fixing length are intruded into the range in which the flat portion of the crossing member is formed. A concrete frame is placed in both areas above. Method for constructing a reinforced concrete structure Wall structure characterized by comprising forming a formed part. A method for constructing a reinforced concrete structure having a wall-type structure, which comprises a crossing part constituting an intersection where ends of a plurality of load-bearing walls or wall beams intersect, and a continuous continuous part of the crossing part In the range where the above-mentioned intersecting portion constituting member is to be divided into a portion constituting member, a plurality of strips elongated in the direction of the beam for the plane portion configured in the row direction of the case, and a beam of the case A plurality of strips long in the beam row direction for the plane portion configured in the row direction are arranged in an overlapping manner so as to form a rectangle at the intersection position, and are long in the vertical direction. Straight vertical bars are arranged at appropriate intervals on the inner side of the two band bars, and a predetermined reinforcing bar for the continuous part constituting member is arranged in a range to constitute the continuous part constituting member. The fixing rebar having the fixing plate at the tip constitutes the flat surface portion of the crossing component member While fixing plate and allowed to penetrate the portion including the predetermined fixing length囲内is Haisuji, reinforced concrete structure Wall structure characterized by comprising forming the precursor components to Da設concrete to the both ranges How to build things. The flat portion of the cross section structure member, reinforced concrete structure Wall structure according to claim 4 or 5 is a plan section with a length of Longitudinal direction and RyoKo direction that ensures the fixing length by the fixing reinforcement How to build.

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