JP5697942B2 - Reinforcing bar unit and foundation reinforcing bar unit and foundation reinforcing bar structure - Google Patents

Description

  The present invention relates to a reinforcing bar unit for building a corner of a frame made of reinforced concrete, a basic reinforcing bar unit for building a foundation of a corner of a frame, and a basic reinforcing bar structure using the basic reinforcing bar unit.

  In general, in the foundation construction that constitutes the foundation of a building, the foundation rebar is assembled at the construction site. In this case, since there is a problem that it takes time to work on site, it has been proposed to assemble reinforcing bars in advance in a factory. Therefore, in the conventional steel structure (S structure) or steel reinforced concrete structure (SRC) foundation rebar structure, a column base reinforced rod is formed by screwing anchor bolts to anchor plates that are continuous with the foundation pile. (See Patent Document 1). However, in the reinforced concrete structure (RC structure), it is not a structure using an anchor plate or the like, and thus this type of reinforcing bar can not be formed.

  On the other hand, a basic rebar unit for constructing a reinforced concrete foundation has been proposed (see Patent Document 2). In this technique, the rising bars (reinforcing bars whose horizontal axis direction is horizontal) are composed of a long part and a short part, and both form an L shape in plan view. And in order to comprise integrally said long part and short part, the said standing | starting_up | stitching line was bent in the corner part.

Japanese Patent Laid-Open No. 5-112952 JP 2008-169778 A (page 7)

  Since the above-described conventional technology is configured to bend the reinforcing bars for reinforcing the foundation beams located on both sides of the corners of the frame at the corners, the shape of the entire foundation reinforcing bar unit is L-shaped in plan view. Is. Therefore, the corner and beam foundation reinforcing bars are constructed by connecting the elongated part of another foundation reinforcing bar unit to the short part of an arbitrary foundation reinforcing bar unit.

  However, since the bent main bars (reinforcing bars for reinforcing the foundation beam) are constructed by connecting the bent short part and the long part, and they are fixed by connecting them with joints, the corner ends In the case of a building structure in which bending reinforcing bars are arranged at the corner ends as represented by the wall structure, the reinforcing bars are concentrated at the corner ends. It was a thing. For this reason, the density of the reinforcing bars at the corner ends becomes high, and therefore, there is a possibility that the concrete cannot be sufficiently filled when placing the concrete.

  In addition, when assembling the foundation rebar at the construction site, the beam reinforcement is arranged toward the end reinforcement at the corner, and the beam reinforcement is bent to fix the beam reinforcement, and the bent portion is Fixing reinforcement bars for reinforcement are provided, and even in this case, the density of the reinforcing bars at the corners is high, and there is a possibility that the placement of concrete may be insufficient. Moreover, the reinforcing bar unit used for corners other than the foundation of a housing was not proposed, but this kind of reinforcing bar unit was desired.

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a reinforcing bar unit and a basic reinforcing bar unit in which the density of reinforcing bars in the corners of the casing does not increase, and further, this basic reinforcing bar unit It is to provide a foundation rebar structure using

  Therefore, the present invention according to the reinforcing bar unit at the corner of the frame is a reinforcing bar unit at the corner of the frame made of reinforced concrete, and forms a long rectangle in the direction of the adjacent beam or between the beams forming the corner. And a longitudinal support reinforcing bar that is overlapped at the corners and is supported at an appropriate interval in the vertical direction.

  Here, the “corner corner” or “corner corner” refers to a portion where two or more adjacent beam portions or wall portions are connected to each other in the building constituting the building. Is included.

  According to the above configuration, for the beam portion or the wall portion constituting the frame corner, the straps are in a state of being supported at appropriate intervals, and are assembled in a state where the straps overlap in advance at the corners. It is possible to construct a bar arrangement necessary for the corner portion by inserting the inner space portion of the tie bar into the vertical bar arranged in the corner portion and the periphery thereof.

  Further, the present invention relating to a foundation reinforcing bar unit at a corner of a building is a foundation reinforcing bar unit at a corner of a foundation made of reinforced concrete, and a base reinforcing bar disposed on a bottom surface at a position where a foundation is to be formed, and the base A corner base vertical streak erected from the streak, a corner end vertical streak erected on the base rebar so as to form a vertex in a rectangular shape in plan view with the corner base vertical streak as a base point, and the corner Encloses the unit end portion vertical bars standing on the base reinforcing bar with appropriate spacing from the end portion vertical bars in the direction of the beam or between the beams, and the corner base vertical bars and the unit end portion vertical bars. Thus, it is characterized in that it has a strip forming a long rectangle.

  Here, the “longitudinal bar” refers to a reinforcing bar that is arranged so that its axis line is substantially aligned with the vertical direction. A rectangular portion in plan view having a vertex formed by the corner base vertical stripe and the corner edge constituting vertical stripe is referred to as a “corner edge”.

  According to the above configuration, the axis of the band extends in the direction of the beam or the direction between the beams with the corner end formed by the corner base vertical stripe and the corner edge constituting vertical stripe as the center. And this strip is hold | maintained by the said corner edge part and a unit terminal part structure vertical stripe. In addition, the foundation part of the corner of the frame is a part where two adjacent foundation beams are continuous, and the streaks overlap at this corner, and further, a long rectangle is formed toward both the foundation beams. By arranging the band reinforcement, it is possible to build a foundation reinforcing bar portion that is continuous on both sides with the corner of the frame as the center. Further, at the unit end portion, the unit end portion constituting vertical bars and the strips are arranged in the vertical and horizontal directions (lattice form), so that the beam main bars can be inserted into the gaps between these reinforcing bars.

  In the above invention, the base reinforcing bars can be constituted by base reinforcing bars assembled in a lattice pattern at predetermined intervals, and base reinforcing bars supplementarily assembled in the middle of adjacent base reinforcing bars.

  According to the above configuration, the base reinforcing bars are arranged in a lattice shape with the base reinforcing bars and the base reinforcing bars, and the base reinforcing bars are arranged in the middle of the base reinforcing bars. The base vertical bars and the corner end configuration vertical bars) can be easily erected on the base reinforcing bars. At this time, by bending the lower end of the vertical bar into a substantially L shape, the bent tip can be brought into contact with the base bar or the base reinforcing bar so that the vertical bar stands upright. The installation state can be stabilized.

  Further, in the above invention, the unit end portion constituting vertical stripes are erected while having an appropriate interval in two directions of the beam running direction and the inter-beam direction, which are configured in a direction perpendicular to the planar view with respect to the corner base vertical stripe. It can be set as the structure which is two types of unit terminal part structure vertical stripes.

  According to the above configuration, the foundation reinforcing bar unit at the corner of the building can be L-shaped in plan view, and can be connected to the beam main reinforcing bar to be joined thereto. In this case, the same basic reinforcing bar unit can be used not only when the corner of the building is a protruding corner but also when the corner is a corner.

  Furthermore, in the above invention, the corner base vertical reinforcing bars are vertical bars constituting the corner end bending reinforcing bars, and the corner end bending reinforcing bars are apexes of a rectangular shape in plan view with the corner base vertical reinforcing bars as a base point. It can be set as the structure which is the reinforcing bar of the vertical direction which forms.

  According to the above configuration, the corner base longitudinal bars serve as a reference for forming the corner ends, and also serve as a reference for the bending reinforcement bars arranged at the vertices of the rectangle in plan view. Thereby, since it functions as a reference for the entire corner, the basic reinforcing bar unit of the present invention can be used as a reference for the corner of the building with the position where the corner base vertical bars are installed.

  In the case of such a configuration, the corner end bending reinforcing bar can be a long corner end bending reinforcing bar extending linearly upward.

  According to the said structure, the bending reinforcement which comprises a foundation reinforcing bar unit can be used with the reinforcement arrange | positioned upwards rather than the foundation part in a frame corner part. In particular, since straight longitudinal bars are used, it is possible to eliminate the need for bending work for position correction of the portions provided for the basic reinforcing bars and the portions provided for the building portions. Moreover, common reinforcing bars can be used not only on the first floor of the building but also on the upper floor. And when this rebar serves as a standard of a corner of a building, the standard in the whole building becomes clear not only in a foundation part.

  The present invention relating to a basic reinforcing bar structure is a basic reinforcing bar structure using the basic reinforcing bar unit according to any one of claims 2 to 6, wherein the basic reinforcing bar unit is disposed in a basic configuration range of a corner of a building, The tip of the beam reinforcement is inserted from the end of the basic reinforcing bar unit, and the beam reinforcement is held by the stirrup.

  According to the said structure, the reference | standard at the time of arrange | positioning a foundation reinforcement will be decided by arrange | positioning the foundation reinforcement unit assembled | attached in the foundation part of a corner of a building, and the foundation reinforcement of an arbitrary corner And the reinforcement of the whole foundation can be completed by constructing a beam main reinforcement between the foundation reinforcement of the corner which should be connected with this. At this time, it is possible to use the beam reinforcement part pre-assembled in the factory. However, considering the installation error at the site and the transportation of the large beam reinforcement, the beam reinforcement is constructed at the construction site. Also good. Even in the case of construction at such a site, since the foundation reinforcing bars at the corners to be connected are constructed first, the construction of the beam main reinforcement can be performed relatively easily.

  In the above invention, the beam main bar may be a fixing reinforcing bar having a fixing member at the tip.

  According to the above configuration, when constructing the foundation reinforcing bar, in particular, when constructing the beam reinforcing bar at the construction site, it is not necessary to bend the beam reinforcing bar for fixing the beam reinforcing bar. In addition, when the fixing part is bent in advance, it may be difficult to insert the main reinforcing bar unit into the basic reinforcing bar unit. However, when the fixing reinforcing bar is used, the beam main reinforcing bar is easily inserted into the basic reinforcing bar unit. be able to.

  According to the present invention relating to the reinforcing bar unit at the corner of the frame, a portion excluding the vertical bars to be used at the corner of the box is formed in advance by the band reinforcing bar and the longitudinal support reinforcing bar. By inserting vertical bars such as bending reinforcing bars, the reinforcing bars at the corners can be constructed, so that the density of the reinforcing bars at the corners of the frame does not increase. By not increasing the density of the reinforcing bars in the corners, the cast concrete can be distributed around the reinforcing bars and the adhesion between the reinforcing bars and the concrete can be improved.

  Further, according to the present invention relating to the foundation reinforcing bar unit at the corner of the frame, the foundation reinforcing bar and the beam reinforcing bar at the corner of the building are constructed separately, and only the foundation reinforcing bar at the corner is installed in advance. Is easy to construct. In particular, the basic shape of the entire unit is formed by the corner base vertical stripes and the corner edge constituting vertical stripes forming the corner ends, and the unit terminal constituting vertical stripes, and is directed toward the direction of the columns or between the beams. An L-shape in a plan view is formed by the horizontally extending band, so that the position where the beam main bar should be connected can be clear. Even in this case, since a sufficient space is secured in the basic reinforcing bar unit, the beam main reinforcing bar can be inserted into the basic reinforcing bar unit, and the density of the reinforcing bars in the corner base portion is not increased. In addition, the adhesion between the cast concrete and the reinforcing bar can be improved.

  On the other hand, according to the present invention relating to the foundation rebar structure, by placing the foundation rebar unit in the foundation part of the corner of the building, the position of the foundation of the corner of the building can be determined first. Reinforcement work for continuation of the beam main bar to the foundation becomes easy. That is, it is only necessary to arrange the beam main bars so that the beam main bars are arranged in the middle of the foundation reinforcing bars without paying attention to the arrangement positions of the beam main bars. And the reinforcing bar density of the corner constructed | assembled in this way does not become high, but it can arrange with the reinforcing bar of moderate density.

  When a fixing reinforcing bar is used as the beam reinforcing bar, the beam reinforcing bar having fixing force can be arranged by inserting the tip of the beam reinforcing bar into the basic reinforcing bar unit. In particular, it may be difficult to secure a space in the foundation reinforcing bar unit having the corner end and the corner end bending reinforcement bar to accommodate the bent portion for fixing the beam main bar. If reinforcing bars are used as beam main bars, it is not necessary to secure such a space. In addition, when the beam main bars are arranged with a fixing length that does not reach the corner end bending reinforcing bars, the density of reinforcing bars in the corners can be clearly reduced.

It is explanatory drawing which shows the outline of embodiment concerning the reinforcing bar unit of this invention. It is explanatory drawing which shows the outline of embodiment concerning the basic rebar unit of this invention. (A) is explanatory drawing which shows the state of the bending reinforcement in embodiment of a basic reinforcing bar unit, (b) is a fragmentary sectional view of IIIb-IIIb. It is explanatory drawing which shows the relationship between embodiment of a basic reinforcement unit and a beam main reinforcement. It is explanatory drawing which shows the state which connected the beam main reinforcement to embodiment of a basic reinforcement unit. It is explanatory drawing which shows the outline of the basic rebar structure using embodiment of a reinforcing bar unit. It is explanatory drawing which shows the usage pattern for embodiment of a reinforcing bar unit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Drawing 1 is a figure showing an outline of an embodiment concerning a foundation reinforcing bar unit in a corner of a frame. As shown in this figure, the basic reinforcing bar unit is composed of a base rebar 1 and a lower portion composed of a plurality of vertical bars 2, 3a, 4a, and vertical supporting reinforcing bars 5a, 5b, 8a, 8b. And the upper part. This upper part is a reinforcing bar unit at the corner of the frame.

  Therefore, the reinforcing bar unit at the corner of the housing will be described. As shown in FIG. 1, the reinforcing bar unit is composed of long rectangular strips 6 and 9, and longitudinal supporting reinforcing bars 5a, 5b, 8a and 8b for supporting them. The strips 6 and 9 are oriented in the longitudinal direction of the rectangle in the direction of the rows or between the beams, and overlap at positions to be corners. In this overlapping portion, both straps 6 and 9 are bound in parallel. Further, the band bars 6 and 9 are supported by the longitudinal supporting reinforcing bars 5a, 5b, 8a, and 8b with an appropriate interval. By providing a plurality of longitudinal supporting reinforcing bars 5a, 5b, 8a, 8b, the band bars 6, 9 are maintained in parallel at a predetermined interval.

  In this way, by configuring the reinforcing bar unit at the corners of the frame, it is possible to provide the necessary reinforcing bars at the corners of the frame by integrating with the remaining vertical bars 2, 3a, 4a. . In FIG. 1, the vicinity of the lower ends of the longitudinal supporting reinforcing bars 5 a, 5 b, 8 a, 8 b is bent in a substantially L shape, but this is a configuration for placing on the base reinforcing bar 1. When the corner base reinforcing bars are not constructed, the lower ends of the longitudinal supporting reinforcing bars 5a, 5b, 8a, and 8b are not bent and are formed in a straight line.

  Next, the lower part of the basic reinforcing bar unit will be described. The lower part is provided with a base rebar 1 assembled in a lattice shape, and is located at the corner base vertical bars 2 standing from the upper surface of the base rebar 1 and at the three vertices of a rectangle in plan view with this as the center. Corner-end constituting vertical bars 3a, 3b, 3c are provided. At this time, the rectangular shape in plan view formed by the corner base vertical bars 2 and the corner edge constituent vertical bars 3a, 3b, 3c may be a rectangle or a square.

  Here, the base reinforcing bar 1 is based on the base reinforcing bars 1a and 1b assembled in a lattice shape, and the base reinforcing bars 1c and 1d are assembled in the middle thereof. The base reinforcing bars 1c and 1d form a fine grid, making it easy to stand up the corner base vertical bars 2 and the corner end constituting bars 3a to 3c. That is, the vicinity of the lower ends of the vertical bars 2, 3a to 3c is bent in an approximately L shape, and the ends of the bent portions can intersect the base bars 1a, 1b or the base reinforcing bars 1c, 1d. .

  In addition to the corner base vertical bars 2 and the corner edge constituent bars 3a to 3c, the base reinforcing bars 1 are further provided with vertical bars 4a, 4b, 7b and 7c. These vertical bars 4a to 7c constitute the unit end portion when constructing the basic reinforcing bar unit.

  FIG. 2 shows a state in which a basic reinforcing bar unit is constructed. As shown in this figure, the above-mentioned upper part and lower part are constructed integrally. Various vertical bars 2, 3 a, 4 a... In the lower part are inserted inside the band bars 6, 9 in the upper part.

  As described above, when the basic reinforcing bar unit is constructed, the vertical bars (hereinafter referred to as “unit terminal part vertical bars”) 4a, 4b (or 7b, 7c) constituting the unit terminal part are the above corner end part vertical bars. 3a, 3b, and 3c are in a state of being erected at positions appropriately spaced from the vertical bars 3a and 3b (or 3b and 3c) that form one side of the rectangle. The unit end portion constituting vertical bars 4a, 4b (or 7b, 7c) are composed of two vertical bars having the same width as the corner end portion constituting vertical bars 3a, 3b (or 3b, 3c). Are provided with a predetermined interval in a direction (column direction or beam direction) to be constructed. This interval corresponds to the length (referred to as fixing length) that can sufficiently fix the main beam of the reinforcing bar group for the foundation beam. If the fixing length of the main beam of the beam is long, the interval is set longer and fixed. When the length is short, the interval can be shortened.

  The longitudinal supporting reinforcing bars 5a, 5b, 8a, 8b are located between the corner end constituting vertical bars 3a, 3b and the unit end constituting vertical bars 4a, 4b. This is a state of surrounding the longitudinal bars in the beam direction. The strips 6 and 9 are, in one direction, the corner end base vertical bars 2 and the corner end part vertical bars 3a to 3c constituting the corner ends, and the unit end part vertical bars 4a and 4b. The corner end base vertical bars 2, the corner end constituent vertical bars 3a to 3c, and the unit terminal end constituent vertical bars 7b and 7c are surrounded in the other direction, and the direction of the beam and the direction between the beams It constitutes a reinforcing bar group extending to both sides.

  As described above, since various vertical bars and strips cross each other at a plurality of locations, the reinforcing bars are held together by being fixed by binding or spot welding or the like at the intersection. It is.

  As described above, in the basic reinforcing bar unit A of the present embodiment, the plan view substantially perpendicular direction centering on the corner end portion of the rectangular shape in plan view constituted by the corner end base longitudinal bars 2 and the corner end portion constituting vertical bars 2a to 2c. A continuous portion is provided, and an L-shaped reinforcing bar group in plan view is constructed. And in the space of the direction where the strips 6 and 9 extend, the beam main reinforcement which should be continued to a corner end part can be received.

  Further, as shown in the figure, the corner base vertical bars 2 are located on the outermost side of the corner ends, and are the members that can be easily grasped in the entire basic reinforcing bar unit A. Can be used as a reference for the basic reinforcing bar unit A. Further, the corner base vertical bars 2 can be used as a reference when constructing a building as well as a basic reinforcing bar. In other words, the longitudinal bars 2 can be arranged in a straight line upward by being constituted by long reinforcing bars that reach the building part, and the building part with reference to the straight outermost reinforcing bar. Can be arranged.

  At this time, it is also possible to provide a corner end bending reinforcement bar having a rectangular shape in plan view including the corner base vertical bars 2. The state which provided the corner edge part bending reinforcement is shown in FIG. As shown in this figure, the apex of the plan view rectangle inside the plan view rectangle (rectangle formed by the corner end basic longitudinal bars 2 and the corner end configuration vertical bars 3a to 3c) in which the corner ends are formed. The corner end bending reinforcing bars 2b, 2c and 2d are provided in the portion. The bending reinforcing bars are arranged at the four corners of the rectangle together with the corner end base vertical bars 2, and the corner base vertical bars 2 serve as both the corner end parts and the bending reinforcing bars. By arranging such bending reinforcement bars, the strength against bending stress at the corner ends can be improved. These corner end bending reinforcing bars 2, 2a, 2b, 2c can be extended upward (upper floor) from the base portion, and a series of continuous linear bending reinforcing bars is continuous upward. The corners can be reinforced.

  The present embodiment is as described above, and the connection state between the basic reinforcing bar unit A and the beam reinforcing bar group B of the present embodiment will be described.

  FIG. 4 shows a state in which the beam reinforcing bar group B is connected to the basic reinforcing bar unit A. As shown in this figure, the beam reinforcing bar group B is composed of beam main bars 11a, 11b, 12a, 12b and stirrup bars 13 arranged in the horizontal direction.

  The beam main reinforcing bars 11a to 12b are divided into upper beam main reinforcing bars 11a and 11b and lower end beam main reinforcing bars 12a and 12b, and are further provided with a predetermined interval in the width direction. This interval in the width direction is arranged slightly narrower than the width dimension of the longitudinal bars of the basic reinforcing bar unit A described above. That is, it is narrower than the interval between the unit end portion constituting vertical bars 4a and 4b, and can be arranged just inside the vertical bars 4a and 4b. Further, the leading ends of the beam main reinforcing bars 11a to 12b reach the point immediately before the corner end constituting vertical bars 3a, 3b, and the extension thereof is inside the interval between the corner end constituting vertical bars 3a, 3b. It is arranged.

  By arranging the beam main bars 11a to 12b in this way, the beam main bars 11a to 12b are inserted into the gap portions of the basic reinforcing bar unit A, and the reinforcing bar density inside the basic reinforcing bar unit A is extremely increased. There is no.

  Further, as shown in the figure, a plate-shaped fixing portion is provided at the tip of each beam main reinforcing bar 11a to 12b. Therefore, in order to fix the beam main reinforcing bars 11a to 12b, near one end of the beam main reinforcing bars 11a to 12b. There is no need to bend. This also suppresses an increase in the reinforcing bar density inside the basic reinforcing bar unit A.

  Note that the tip ends of the beam main bars 12a and 12b at the lower end are bent slightly upward so that the fixing force is sufficient. If the fixing force by the fixing reinforcing bars is strengthened, it is expected that such bending will not be necessary, but if sufficient fixing force can be obtained by bending only a small range at the tip. Further, it is possible to bend in a range in which the reinforcing bar density inside the basic reinforcing bar unit A is not greatly increased.

  In this manner, the main reinforcing bars 11a to 12b whose ends are inserted into the inside of the basic reinforcing bar unit A are provided with the stirrup bars 13 so as to surround them. The beam main bars 11a to 12b arranged away from each other in the vertical and width directions by the arrangement of the stirrups 13 form a group of reinforcing bars. In addition, in some cases, auxiliary reinforcing bars 14 as illustrated may be provided horizontally in these reinforcing bar groups. When the upper beam main bars 11a and 11b are far away from the lower beam main bars 12a and 12b, an auxiliary reinforcing bar 14 may be provided between the main bars 11a and 12b.

  The beam reinforcing bar group C similar to the beam reinforcing bar group B as described above is also formed in the other unit terminal portion constituting vertical bars 7a and 7b of the basic reinforcing bar unit A. In this way, the beam reinforcing bar groups B and C are constructed so as to be continuous from the basic reinforcing bar unit A on both sides, whereby the entire basic reinforcing bar of the building is constructed. In addition, after these rebar construction is completed, a formwork is provided while maintaining a predetermined cover thickness, and concrete is placed in the formwork, so that the foundation of a reinforced concrete building is constructed. .

  FIG. 5 shows a state where the basic reinforcing bar unit A and the beam reinforcing bar groups B and C are separated from each other. This does not simply indicate a separated state, but the beam reinforcing bar groups B and C are pre-assembled. As shown in this figure, the beam reinforcing bar groups B and C can be assembled in advance. This can be assembled at the factory, but includes the case where it is pre-assembled on a flat ground instead of working in the depression excavated for foundations.

  In this way, the same basic reinforcing bars can be constructed by assembling the beam reinforcing bar groups B and C in advance and finally inserting the tip portions of the beam main reinforcing bars 11a to 12b into the basic reinforcing bar unit A. It is. In this case, if the beam reinforcing bar groups B and C have a predetermined length and a straight beam reinforcing bar group B and C, the tip portions of the beam main reinforcing bars 11a to 12b projecting from both ends thereof are respectively set. What is necessary is just to insert in the inside of the basic rebar unit which should be connected.

  As described above, by installing the basic reinforcing bar unit A first, the beam main reinforcing bar may be constructed on the site, or a method of connecting the pre-assembled ones on the site may be selected.

  Next, a basic reinforcing bar structure using the above-described basic reinforcing bar unit A will be described. FIG. 6 is a diagram showing a basic reinforcing bar structure in the case of constructing a foundation of a rectangular building in plan view with four protruding corners. As shown in this figure, the same basic reinforcing bar units A1, A2, A3, and A4 are respectively installed at the protruding corner portions. At this time, as described above, the basic reinforcing bar unit A (A1 to A4) is configured in an L-shape that is substantially perpendicular to the corner end base vertical bars 2 in plan view. 2 is arranged so as to coincide with the reference position of the corner foundation. In such a state, by installing the basic reinforcing bar units A1, A2, A3, and A4 at the four protruding corners, the construction of the basic reinforcing bars at the corners is completed.

  Subsequently, the beam foundation is constructed between these foundation reinforcing bar units. Specifically, a beam foundation is sequentially formed between an arbitrary basic reinforcing bar unit A1 and a basic reinforcing bar A2 located on the right side of the basic reinforcing bar unit A1, and further on the right side of the basic reinforcing bar unit A3. Build it. At this time, as described above, the beam reinforcing bar groups B and C may be constructed on site, but the beam reinforcing bar groups B and C assembled in advance may be connected to the reinforcing bar units A1 to A4. Regardless of which method is used, by constructing a beam reinforcing bar group between adjacent units, all the building of the basic reinforcing bar is completed. It will be.

  Further, in the case where the base reinforcing bar of the frame is constructed by assembling the basic reinforcing bar unit A and the beam reinforcing bar group as described above, the corner reinforcing bar unit as shown in FIG. 7 can be arranged. That is, as shown in the drawing, the basic reinforcing bar units A1 to A4 as described above are arranged at the four corners which are basic corners, and in the middle of the basic reinforcing bar units A1 and A2 constituting the two protruding corners. The basic reinforcing bar unit A5 constituting the protruding corner and the basic reinforcing bar unit A6 constituting the entering corner are arranged. As described above, the corners of the housing can be roughly classified into two types, that is, the exit corner and the entrance corner, and the same basic reinforcing bar unit can be used for both. In this case, the beam reinforcing bar groups B and C are connected between the basic reinforcing bar units A1 to A6.

  Although the embodiment of the invention relating to the basic reinforcing bar unit and the basic reinforcing bar structure is as described above, the present invention is not limited to these, and various forms can be adopted. For example, in the above-described embodiment, the corner base vertical bars 2, the corner end constituent vertical bars 3a to 3c, and the unit end part vertical bars 4a, 4b, 7b, and 7c are all erected on the base reinforcing bar 1. In this standing state, the lower end may be bent to increase the contact range with the base rebar 1, but the bundling is performed in accordance with the position of the lattice rebar constituting the base rebar 1. It may be fixed by, for example. The number of various reinforcing bars can be increased or decreased according to the dimensions of the building or foundation.

  Furthermore, although the reinforcing bar unit (refer FIG. 1) mentioned above illustrated the state integrated with the basic reinforcing bar which has the base reinforcing bar 1, this reinforcing bar unit is a reinforcing bar unit at the time of comprising a corner part above a basic part. It can be used. In that case, since the corner base vertical stripes 2 extend upward, it is possible to integrate them by a common reference with the same configuration.

1 Base Reinforcing Bars 1a, 1b Base Reinforcing Bars 1c, 1d Base Reinforcing Bar 2 Corner End Base Vertical Bars 2a, 2b, 2c Corner End Bending Reinforcing Bars 3a, 3b, 3c Corner End Constructing Vertical Bars 4a, 4b, 7a, 7b Unit Longitudinal reinforcing bars 5a, 5b, 8a, 8b Longitudinal supporting reinforcing bars 6, 9 Strip bars 11a, 11b Beam main bars (upper beam main bars)
12a, 12b Beam reinforcement (beam reinforcement at the bottom)
13 Stirrup
A, A1, A2, A3, A4, A5, A6 Basic rebar unit A
B, C Beam rebar group

Claims (8)

Reinforcing bar units at the corners of the reinforced concrete frame, a plurality of strips forming a long rectangle in the direction of the adjacent beam or between the beams forming the corners, and the strips at the corners The reinforcing bar unit at the corner of the frame is provided with vertical supporting bars that are overlapped with each other and supported with an appropriate interval in the vertical direction. A basic reinforcing bar unit at the foundation corner of a reinforced concrete frame base, the base reinforcing bar arranged on the bottom surface at the position where the foundation should be formed, the corner base vertical bars standing from the base reinforcing bar, and the corner The corner-end vertical bars standing on the base reinforcing bar so as to form a rectangular vertex in plan view with the end base vertical bars as the base point, and an appropriate interval from the corner-end vertical bars to the direction of rows or between beams And a unit end portion vertical bar erected on the base reinforcing bar, and a strip forming a long rectangle so as to surround the corner base vertical bar and the unit end portion vertical bar. A basic rebar unit at the corner of the frame. The base rebar is a base rebar composed of a base rebar assembled in a grid pattern at a predetermined interval and a base reinforcing bar that is supplementarily assembled in the middle adjacent to the base rebar. Basic rebar unit described in 1. The unit end portion constituting vertical stripes are erected with two types of units with appropriate spacing in two directions of the beam running direction and the beam-to-beam direction configured in a direction perpendicular to the plan view with respect to the corner base vertical stripe. The foundation reinforcing bar unit at the corner of the frame according to claim 2, wherein the reinforcing bar unit is a longitudinal bar constituting the end portion. The corner base vertical bars are vertical bars constituting the corner end bending reinforcing bars, and the corner end bending reinforcing bars are formed in the vertical direction to form a vertex in a rectangular shape in plan view with the corner base vertical bars as base points. 5. The foundation reinforcing bar unit at the corner of the frame according to claim 2, wherein the reinforcing bar unit is composed of reinforcing bars. The base corner reinforcing bar unit according to claim 5, wherein the corner end bending reinforcing bar is a long corner end bending reinforcing bar extending linearly upward. A basic reinforcing bar structure using the basic reinforcing bar unit according to any one of claims 2 to 6,
The above-mentioned foundation reinforcing bar unit is arranged in the foundation composition range at the corner of the building, and the tip of the beam reinforcing bar is inserted from the end of the foundation reinforcing bar unit, and the beam reinforcing bar is held by the stirrup. Rebar structure. 8. The basic reinforcing bar structure according to claim 7, wherein the beam main reinforcing bar is a fixing reinforcing bar having a fixing member at a tip.

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