JP2017078253A - Reinforcing bar arrangement method and reinforcing bar arrangement structure of reinforced concrete foundation slab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing bar arrangement method in which the reinforcing bar arrangement of a reinforced concrete foundation slab can efficiently be performed by a simple work.SOLUTION: A slab reinforcement is constituted of a vertical reinforcement frame 30 and a horizontal reinforcement frame 40. The vertical reinforcement frame 30 is constituted of multiple vertical reinforcements 4 and a temporarily fixed reinforcement 31 for the vertical reinforcement for holding the vertical reinforcements 4 at regular intervals. The horizontal reinforcement frame 40 is constituted of multiple horizontal reinforcements 40 and a temporarily fixed reinforcement 41 for the horizontal reinforcement for holding the vertical reinforcements 4 at regular intervals. In the installation location of a reinforced concrete base beam slab, the vertical reinforcement frame 30 and the horizontal reinforcement frame 40 are overlapped and fixed to each other so that the vertical reinforcement 4 may be perpendicular to the horizontal reinforcement 5, and thereby the slab reinforcement is constituted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bar arrangement method and a bar arrangement structure of a reinforced concrete foundation slab such as a house.

  For slab reinforcement of reinforced concrete foundation slabs used in residential construction, etc., the vertical and horizontal slab reinforcements are arranged at predetermined intervals on the installation site, and the intersections are bound by binding lines to construct a lattice-like slab reinforcement structure. doing. In Patent Document 1, in order to easily perform the slab reinforcement arrangement, the slab reinforcement holding bodies with grooves at regular intervals are arranged at the four corners, and the slab reinforcements are arranged in the grooves of the slab reinforcement holding body. Thus, vertical and horizontal slab streaks can be arranged in a grid pattern.

JP 2007-327193 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a reinforcing method and a reinforcing bar arrangement method for a reinforced concrete foundation slab capable of easily and efficiently arranging a slab reinforcing element without using a frame such as a slab reinforcing element. .

  In order to solve the above-described problems, in the reinforcing bar arrangement method for a reinforced concrete foundation slab of the present invention, the slab bar is composed of a vertical bar frame and a horizontal bar frame. A plurality of vertical bars arranged on a plane in a state in which the vertical bar frames extend in parallel at regular intervals, and the vertical bars temporarily welded to these vertical bars and holding these vertical bars at regular intervals It consists of muscles. A plurality of transverse bars arranged on a plane in a state in which the transverse stripe frame extends in parallel at regular intervals, and temporary transverse bars for transverse muscles welded to these transverse stripes and holding these transverse stripes at regular intervals Configure. And in the installation place of the slab reinforcement in which the reinforced concrete foundation beam is installed, the longitudinal reinforcement frame and the transverse reinforcement frame are overlapped and fixed to each other so that the longitudinal reinforcement and the transverse reinforcement are orthogonal to each other to constitute the slab reinforcement.

  Here, when the installation area of the slab bars is large, a plurality of vertical bar frames and horizontal bar frames are arranged. In this case, a lap joint is formed between adjacent vertical stripe frames and between adjacent horizontal stripe frames.

  For example, in the case where the two vertical stripe frames are arranged in the longitudinal stripe length direction, these end portions are overlapped with each other over a predetermined length to form a lap joint, and the vertical stripe frames overlap. The temporary reinforcing bars for vertical bars arranged at the respective end portions of the vertical bar frame are positioned in the portions. Similarly, when arranging the two horizontal stripe frames in the horizontal stripe length direction, these end portions are overlapped with each other over a predetermined length to form a lap joint, and the horizontal stripe frames overlap. In the portion, the temporary fixing bars for the horizontal stripes arranged at the respective ends of the horizontal stripe frame are positioned.

  If it does in this way, in the overlap joint part of two frames (vertical stripe frames or horizontal stripe frames), the part of the concrete with which a overlap joint part is filled will be in the state restrained between the stop bars. Therefore, it is possible to shorten the length of the lap joint by using the strength of the stopper.

When two vertical stripe frames are arranged in the vertical stripe length direction, the vertical stripes protruding from the vertical stripe temporary fixing stripes arranged at one end of the vertical stripe length direction in one vertical stripe frame The two vertical streaks are overlapped with each other, and the vertical streak portion protruding from the vertical stapling temporary stapling arranged at one end of the other vertical streak frame in the longitudinal streak length direction. A lap joint may be formed between the frames.

  Similarly, when arranging the two horizontal stripe frames in the horizontal stripe length direction, the horizontal stripe portion projecting from the temporary fastening muscle for horizontal stripes arranged at one end of the horizontal stripe length direction in one horizontal stripe frame, A horizontal joint protruding from the horizontal bar temporary fastening bar arranged at one end in the horizontal bar length direction of the other horizontal bar frame is overlapped with each other to form a lap joint of these two horizontal bar frames. Also good.

  Or, of course, a lap joint having a required length may be formed between the ends of the adjacent vertical stripe frames or between the ends of the adjacent horizontal stripe frames regardless of the position of the temporary fixing stripe. is there.

  Next, when the vertical bar frame and the horizontal bar frame are overlapped, the vertical bar and the horizontal bar temporary bar are positioned on the same side as the vertical bar frame and the horizontal bar frame so that the overlapping thickness does not increase. It is desirable to do so. Thus, the overlap thickness is the total dimension of the vertical stripe frame diameter and the horizontal stripe frame diameter. As the stop bars, reinforcing bars with the same diameter as or smaller than the vertical and horizontal bars can be used, so that the stop bars fit within the overlap thickness dimension of the vertical and horizontal bars and suppress the increase in the overlap thickness. it can.

  For this reason, in the present invention, in the vertical frame, the vertical bar temporary fixing bars are welded to the same side with respect to the vertical bars. Similarly, in the horizontal bar frame, the horizontal bar temporary bars are set on the same side of the horizontal bar. Weld the stop bars. The vertical bar frame and the horizontal bar frame are overlapped with each other so that the vertical bar temporary fixing bar and the horizontal bar temporary fixing bar are located inside.

  In order to eliminate quality variations and reduce the work process at the site, it is desirable to produce the vertical and horizontal stripe frames in the factory and carry them to the site.

Next, the bar arrangement structure of the reinforced concrete foundation slab of the present invention is as follows:
A plurality of vertical bars arranged on a plane in a state extending parallel to each other at regular intervals, and a vertical bar temporary fixing bar that is welded to these vertical bars and holds these vertical bars at regular intervals A vertical bar frame for slab reinforcement,
A slab arrangement comprising a plurality of transverse bars arranged on a plane extending parallel to each other at regular intervals, and temporary transverse bars for transverse muscles welded to these transverse stripes and holding these transverse stripes at regular intervals A horizontal stripe for the muscle,
A crossing portion of the vertical stripe and the horizontal stripe is fixed in a state where the vertical stripe frame and the horizontal stripe frame are overlapped with each other so that the vertical stripe and the horizontal stripe are orthogonal to each other.

  Here, the two horizontal stripe frames are arranged in the horizontal stripe length direction, and between the horizontal stripe frames, the end portions of the horizontal stripe frames are overlapped with each other over a predetermined length. In the case where the horizontal stripe frame is provided, it is desirable that the temporary fixing bars for the horizontal stripes arranged at the respective end portions of the horizontal stripe frames are located at the portions where the horizontal stripe frames overlap.

  Similarly, the two vertical stripe frames are arranged in the longitudinal stripe length direction, and the ends of the vertical stripe frames are overlapped with each other over a predetermined length between the vertical stripe frames. In the case where the overlapped joint is provided, the vertical bar temporary fixing bars arranged at the respective end portions of the vertical bar frame are located in the overlapping portions of the vertical bar frames. It is desirable.

It is explanatory drawing which shows the bar arrangement structure of the slab reinforcement to which this invention is applied. It is explanatory drawing which shows an example of the vertical stripe frame and the horizontal stripe frame which comprise a slab stripe.

  Hereinafter, an embodiment of a reinforcing bar arrangement method for a reinforced concrete foundation slab to which the present invention is applied will be described with reference to the drawings.

  Fig.1 (a) is explanatory drawing which shows the slab reinforcement of a reinforced concrete foundation slab, and FIG.1 (b) is explanatory drawing which shows the overlap joint part. FIG. 2A is an explanatory view showing a vertical stripe frame constituting the slab muscle, and FIG. 2B is an explanatory view showing a horizontal stripe frame constituting the slab muscle.

  As shown in these drawings, in the slab reinforcement 3 of the reinforced concrete foundation slab, the longitudinal reinforcement 4 and the transverse reinforcement 5 are arranged in a lattice pattern. In this example, the vertical stripe frame 30 constituted by the vertical stripes 4 and the horizontal stripe frame 40 constituted by the horizontal stripes 5 are overlapped in a state in which the vertical stripes 4 and the horizontal stripes 5 are orthogonal to each other.

  The required number of vertical stripe frames 30 are arranged in the length direction and the width direction, and a lap joint is formed between the vertical stripe frames 30 adjacent to each other in the length direction. Similarly, the necessary number of horizontal stripe frames 40 are arranged in the length direction and the width direction, and a lap joint is formed between the horizontal stripe frames 40 adjacent in the length direction.

  As shown in FIG. 2B, the vertical stripe frame 30 includes a plurality of vertical stripes 4 arranged on a plane so as to extend in parallel at a constant interval. The vertical bar temporary fixing bars 31 are arranged at regular intervals in the length direction so as to be orthogonal to the vertical bars 4. Intersections between the vertical reinforcing bars 31 and the vertical bars 4 are fixed by welding. The welding strength is set to be equal to or higher than the yield point strength of the reinforcing steel base material. Further, the vertical reinforcing bars 31 are attached to the same side of the vertical bars 4.

  As shown in FIG. 2A, the horizontal stripe frame 40 includes a plurality of horizontal stripes 5 arranged on a plane so as to extend in parallel at a constant interval. Transverse temporary fastening bars 41 are arranged at regular intervals in the length direction in a state orthogonal to the horizontal bars 5. The intersecting portions of the horizontal reinforcing bars 41 and the horizontal bars 5 are fixed by welding. The welding strength is set to be equal to or higher than the yield point strength of the reinforcing steel base material. The horizontal reinforcing bars 41 are attached to the same side of the horizontal bars 5.

  Here, with reference to Fig.1 (a), the part of the overlap joint of the horizontal stripe frame 40 is demonstrated. In the lap joint between two adjacent horizontal stripe frames 40, the horizontal stripe portion 5a protruding from the horizontal stripe temporary fixing stripe 41 arranged at one end in the horizontal stripe length direction of the one horizontal stripe frame 40, and the other The horizontal bar portions 5b protruding from the horizontal bar temporary fixing bars 41 arranged at one end in the horizontal bar length direction of the horizontal bar frame 40 are overlapped with each other and bound by a binding line or the like. In the case of the vertical stripe frame 30 as well, the overlap joint portion can be formed in the same manner.

  Instead of this, the horizontal reinforcing bar 41 is attached to the end of the one horizontal bar frame 40 in the horizontal line length direction, and the vertical reinforcing bar 41 is also attached to the other side of the horizontal bar frame 40 in the horizontal line length direction. The ends of these horizontal stripe frames may be overlapped with each other, and a lap joint may be formed between these two horizontal stripe frames. In the case of the vertical stripe frame 30, a lap joint can be configured in the same manner.

In this way, by arranging the temporary reinforcing bars 41 for the horizontal stripes at the portion of the overlapping joint between the horizontal stripe frames 40, the length of the overlapping joint can be shortened using the temporary fixing stripes. In addition, regardless of the position of the temporary fastening line, between the ends of the adjacent vertical stripe frames, or between the ends of the adjacent horizontal stripe frames,
Of course, a lap joint having a required length may be formed.

  In addition, when the vertical bar frame 30 and the horizontal bar frame 40 are overlapped, the vertical bar temporary fixing bar 31 and the horizontal bar temporary barb are provided between the vertical bar frame 30 and the horizontal bar frame 40 so that the overlapping thickness does not increase. A stop bar 41 is positioned.

  That is, as shown in FIG. 1 (b), in the vertical bar frame 30, the vertical bar temporary fixing bars 31 are welded to the same side of the vertical bar 4, and in the horizontal bar frame 40, the same to the horizontal bar 5. The temporary reinforcing bar 41 for horizontal bars is welded to the side of the side. The vertical stripe frame 30 and the horizontal stripe frame 40 are overlapped with each other so that the vertical stripe temporary fixing stripe 31 and the horizontal stripe temporary fixation stripe 41 are located inside.

  Note that the vertical streak frame 30 and the horizontal streak frame 40 are also produced in the factory in this example in order to eliminate variations in quality and reduce the work process in the field.

  Further, the vertical bar temporary fixing bar and the horizontal bar temporary fixing bar used as the vertical bar 4 and the horizontal bar 5 can be used as the structural material in the vertical bar direction and the horizontal bar direction. That is, by temporarily connecting the temporary fastening bars using joint bars (forming a lap joint portion), the temporary fastening bars can be used as vertical and horizontal slab bars, that is, as a structural material.

  Furthermore, in this example, the anchor part (falling part) 5A bent at a predetermined angle is formed at one end of the horizontal bar 5, but there may be no anchor part. In addition, the anchor portion can have various lengths according to the arrangement state of the bar arrangement and the like, and the bending angle can be various angles such as 90 degrees and 135 degrees.

3 slab muscle 4 longitudinal muscle 5 transverse muscle 5A falling portion 5a, 5b transverse muscle portion 30 longitudinal muscle frame 31 longitudinal muscle temporary fastening muscle 40 transverse muscle frame 41 transverse muscle temporary fastening muscle

Claims (8)

A plurality of vertical bars arranged on a plane in a state extending parallel to each other at regular intervals, and a vertical bar temporary fixing bar that is welded to these vertical bars and holds these vertical bars at regular intervals Prepare a vertical bar frame for slab reinforcement,
A slab arrangement comprising a plurality of transverse bars arranged on a plane extending parallel to each other at regular intervals, and temporary transverse bars for transverse muscles welded to these transverse stripes and holding these transverse stripes at regular intervals Prepare a horizontal stripe for the muscle,
An arrangement of a reinforced concrete foundation slab, wherein the vertical bar frame and the horizontal bar frame are overlapped with each other so that the vertical bar and the horizontal bar are orthogonal to each other, and an intersection of the vertical bar and the horizontal bar is fixed. Muscle method. In claim 1,
When arranging the two vertical stripe frames in the vertical stripe length direction, these ends are overlapped with each other over a predetermined length to constitute a lap joint,
A reinforcing bar arrangement method for a reinforced concrete foundation slab in which the temporary reinforcing bars for vertical bars arranged at the respective ends of the vertical bar frames are positioned at portions where the vertical bar frames overlap. In claim 1,
When arranging the two horizontal stripe frames in the horizontal stripe length direction, these end portions are overlapped with each other over a predetermined length to constitute a lap joint,
A reinforcing bar arrangement method for a reinforced concrete foundation slab in which the horizontal reinforcing bar temporary fixing bars arranged at the respective end portions of the horizontal reinforcing bar frame are positioned at portions where the horizontal reinforcing bar frames overlap. In claim 1,
In the vertical bar frame, welding the vertical bar temporary fixing bars on the same side with respect to the vertical bars,
In the horizontal bar frame, welding the horizontal bar temporary fixing bars on the same side with respect to the horizontal bar,
A reinforcing bar arrangement method for a reinforced concrete foundation slab in which the vertical bar frame and the horizontal bar frame are overlapped with each other so that the vertical bar temporary bar and the horizontal bar temporary bar are positioned inside. In claim 1,
A reinforcing bar arrangement method for a reinforced concrete foundation slab in which the vertical bar frame and the horizontal bar frame are produced in a factory and are carried to a slab bar installation place. A plurality of vertical bars arranged on a plane in a state extending parallel to each other at regular intervals, and a vertical bar temporary fixing bar that is welded to these vertical bars and holds these vertical bars at regular intervals A vertical bar frame for slab reinforcement,
A slab arrangement comprising a plurality of transverse bars arranged on a plane extending parallel to each other at regular intervals, and temporary transverse bars for transverse muscles welded to these transverse stripes and holding these transverse stripes at regular intervals A horizontal stripe for the muscle,
Reinforced concrete, wherein the vertical bars and the horizontal bars are overlapped with each other so that the vertical bars and the horizontal bars are orthogonal to each other, and the intersection of the vertical bars and the horizontal bars is fixed Reinforcement structure of basic slab. In claim 6,
The two horizontal stripe frames are arranged in the horizontal stripe length direction,
Between the horizontal bar frames, each end of the horizontal bar frame is provided with a lap joint in a state of being overlapped with each other over a predetermined length,
The bar arrangement structure of the reinforced concrete foundation slab in which the horizontal reinforcing bar temporary fixing bars arranged at the respective ends of the horizontal reinforcing bar frames are located in the overlapping portions of the horizontal reinforcing bar frames. In claim 6,
The two vertical stripe frames are arranged in the vertical stripe length direction,
Between the vertical bar frames, each of the ends of the vertical bar frame is provided with a lap joint in a state of being overlapped with each other over a predetermined length,
Reinforcement structure of reinforced concrete foundation slab in which the vertical reinforcing bar temporary reinforcing bars arranged at the respective ends of the vertical reinforcing frame are located in the overlapping portions of the vertical reinforcing frame.

Images