JPH03180652A - Bar arrangement structure for light air bubble concrete panel - Google Patents

Abstract

PURPOSE:To prevent twist of an arranged bar even when the thickness of a spring is reduced due to a pattern by disposing mesh bars so that a longitudinal wire is positioned on the inner side of a lateral wire, and welding a lateral wire to a longitudinal main bar and a longitudinal wire to the lateral main bar formed of a square steel. CONSTITUTION:Flat bars 10 being longitudinal main bars having the same length are arranged so that upper and lower end surfaces 10B are arranged in a line, and square steels 20 being a lateral main bar are securely welded to the upper and lower end surfaces 10B to form a frame. Two mesh bars 30 are disposed to the two sides of the flat bar 10 so that longitudinal wires 30A are positioned on the inner side of the lateral wire. Lateral wires 30B are secured to sides 10A of the flat bar 10 and the longitudinal wires 30A are secured to sides 20A of the square steel 20 by welding, and this arrangement is disposed in forms to manufacture a patterned light air bubble concrete panel. The square steel 20 is used as the lateral main bar, and even when a panel thickness is reduced, lowering of twist rigidity of the whole of arranged bars is prevented.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a reinforcement structure for lightweight cellular concrete panels, and particularly relates to reinforcing structures for lightweight cellular concrete panels used as external walls of industrialized houses. .

[Background technology]

In industrialized housing, where parts are mass-produced in a factory and then transported to the site to build houses, etc., the curtain wall construction method, in which panels are attached to the housing steel framework to form the exterior wall, and box-shaped frames are used. There is a unit construction method in which panels are attached to form the exterior wall. In these construction methods,
Lightweight aerated concrete panels are used as exterior wall panels. Conventionally, this lightweight aerated concrete panel has been made by connecting mesh reinforcements with multiple angle members sandwiched between them, separated from each other, but with this, the reinforcement arrangement would warp after joining the mesh reinforcements to the angle members. There is a problem. For this reason, the present applicant proposed a lightweight cellular concrete panel 60 shown in FIG. 5 as a panel using flat bars instead of angle members (Utility Application No. 172131). This panel 60 has a rectangular shape, and flat pars 50B as horizontal main reinforcing bars are provided near both upper and lower end surfaces. This flat par 50B
A plurality of flat pars 50A as longitudinal main reinforcements are provided between each flat par 50B in a direction orthogonal to each flat par 50B.
are arranged at predetermined intervals. Mesh muscles 5I are fixed to both sides of the panel skeleton formed by these flat pars 50A and 50B.

[Problem to be solved by the invention]

However, in the above-mentioned reinforcement structure for lightweight aerated concrete panels, two upper and lower flat bars are used as the main horizontal reinforcement, and due to the deflection of these flat bars, twisting occurs throughout the reinforcement. easy.

In particular, for panels with uneven patterns on the entire surface of the panel, the thickness of the cover between the panel surface and the reinforcement is insufficient due to the influence of this pattern, so as a countermeasure. Although it is possible to adopt a method of setting the interval between the two mesh muscles small, this method has the disadvantage that the resistance against torsion becomes even weaker.

An object of the present invention is to provide a reinforcement structure for a lightweight cellular concrete panel that can reduce the panel thickness while maintaining sufficient strength against torsion.

[Means to solve the problem]

The reinforcement structure for a lightweight aerated concrete panel according to the present invention includes horizontal main reinforcements arranged substantially parallel to the upper and lower ends at predetermined intervals, and horizontal main reinforcements arranged at predetermined intervals between the groove direction main reinforcements. A plurality of vertical main reinforcements are arranged perpendicularly and are fixed at both ends to the horizontal main reinforcements, and a plurality of longitudinal main reinforcements are arranged on both sides of the plurality of longitudinal main reinforcements so as to sandwich the whole of the plurality of longitudinal main reinforcements. The mesh reinforcement is arranged so that its vertical line is located inside the horizontal line, the horizontal line is fixed to the vertical main reinforcement, and the horizontal main reinforcement is formed from square steel. ing.

[Effect]

The longitudinal main reinforcing bars of the same length are arranged at predetermined intervals so that their end surfaces are located on the same straight line. Square steel bars serving as horizontal main reinforcing bars are welded to both end faces of the longitudinal main reinforcing bars, thereby forming a framework. Next, mesh reinforcements are arranged so that the vertical lines of the mesh reinforcements are on the inside, and the horizontal lines of the mesh reinforcements are fixed by welding to both sides of the entire longitudinal main reinforcement.

In addition, vertical lines of mesh reinforcement are fixed by welding to both sides of the square steel serving as the horizontal main reinforcement.

In this way, since square steel is used as the lateral main reinforcing bars, it is possible to prevent the torsional rigidity of the reinforcing metal body from decreasing even when the cosiclete panel thickness decreases. This achieves the above objective.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

The reinforcement structure for a lightweight cellular concrete panel according to this embodiment is used as a reinforcing structure for a patterned lightweight cellular concrete panel used as the exterior wall of the above-mentioned industrialized house.

FIG. 1 shows the entire patterned lightweight cellular concrete panel according to the invention. 2 and 3 also show cross sections.

In these figures, the patterned lightweight aerated concrete panel 100 has a thickness of 1 mm without changing the total thickness of the concrete panel (80 mm in this example).
, unevenness on one side (maximum 15 [mm in this example)]
), the pattern 40 is formed. The reinforcement arrangement of this panel 100 is such that a plurality of flat pars 1O as longitudinal main reinforcements extend vertically and are arranged parallel to each other.
Corners r@20 as lateral main reinforcements are fixed to the upper and lower ends of these flat pars 10, respectively, perpendicular to the flat pars 10, and mesh reinforcements 30 are arranged on both side surfaces 10A of the flat pars 10. It is said that

As shown in FIG. 4, the mesh reinforcement 30 is made by assembling steel bars of a predetermined diameter (φ5 (mm) in this example) in a lattice shape and fixing them by welding. line 3
Flat par lO with horizontal line 30B with 0A facing inside
It has a structure that is fixed to the side surface 10A by welding. Therefore, since the horizontal line 30B of the mesh reinforcement 30 is placed on the outermost side, the distance from the outer surface of the horizontal line 30B to the outer surface of the concrete panel 100 is the "cover thickness" (D in FIG. 2). Here, the "cover thickness" must be ensured to be m (at least 15 (mm) in this example) necessary to protect the reinforcement, so the horizontal line 30 of the mesh reinforcement 30 must be
The position of B is determined, and the width of the flat parlO is also determined (in this example, the width is set to 25 (mm)).The square steel 20 has a square cross section, and the width of the flat parlO is also determined. The width is determined from the pure spacing between the vertical lines 30A of the two mesh strips 30 positioned as described above (in this example, the width is 15 (mrr+), so 15X15
angle [20 is used]. A mounting nut 41 for mounting the panel 100 to a frame (not shown) is fixed to the flat par 10 and the square steel 20.

Next, a reinforcement procedure for a lightweight cellular concrete panel according to this embodiment will be explained.

As shown in FIG. 1, flat parls 10 as longitudinal main reinforcements of the same length are arranged at predetermined intervals so that their upper and lower end surfaces 10B are located in a straight line. panel 100
One corner w420 is fixed as a horizontal main reinforcement by welding to the center of both end surfaces 10B of these flat pars 10 so that the thickness direction of the flat pars 10 matches the width direction of the flat pars 10. form. Attachment nuts 41 are fixed to predetermined positions of the flat par 10 and square steel 20 of this frame by welding.

Next, two mesh strips 30 are placed on both sides of the flat parlO so that the vertical lines 30A are on the inside of the panel. In this state, the horizontal line 30B of the mesh strip 30 is fixed to the side surface lOA of the flat parl lO by welding. On the other hand, since the vertical lines 30A of the mesh reinforcement 30 come into contact with both side surfaces 20A of the square steel 20, these vertical lines 30A are fixed to the side surfaces 20A of the square steel 20 by welding.

The reinforcing bars thus formed are placed in a formwork (not shown), and concrete slurry is poured into the formwork to produce a patterned lightweight cellular concrete panel.

According to this embodiment, since the angle M20 is used as the horizontal main reinforcement, reinforcement can be arranged in a thin lightweight cellular concrete panel without reducing torsional rigidity.

In other words, since the square steel 20 is used instead of the flat bar used as the two upper and lower horizontal main reinforcements in the conventional example, the distortion of the member itself is reduced, and as a result, the reinforcement arrangement is closer to a flat surface. becomes possible.

In addition, although the square steel 20 was used only as a horizontal main reinforcement in the said Example, it may be used also as a longitudinal main reinforcement instead of a flat par lO together with a horizontal main reinforcement. However, if square steel was used only as the horizontal main reinforcement as in the above embodiment, the high cost square steel 20 would have been used at the minimum necessary.
Cost increases can be kept to a minimum.

〔Effect of the invention〕

As explained above, according to the reinforcement structure for lightweight aerated concrete panels according to the present invention, the torsional rigidity is not reduced despite the substantial reduction in panel thickness due to the pattern provided on the panel surface. , it is possible to effectively prevent twisting of reinforcement.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional plan view showing an entire embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line 1-I in FIG. 1, and FIG. 3 is a cross-sectional view taken along FIG. 4 is a perspective view showing the state of reinforcement, and FIG. 5 is a plan view showing the reinforcement of a concrete panel, which is the premise of the present invention. 10...Flat par as longitudinal main reinforcement 2
0... Square steel as horizontal main reinforcement, 30...
...Metusi muscle, 30A...vertical line of Metschus muscle, 30B...horizontal line of Metschus muscle.

Claims (1)

[Claims] (1) Horizontal main reinforcements arranged substantially parallel to the upper and lower ends at a predetermined interval, and horizontal main reinforcements arranged perpendicular to the lateral main reinforcements at a predetermined interval between the lateral main reinforcements and in the lateral direction. A plurality of longitudinal main reinforcements having both ends fixed to the main reinforcements, and mesh reinforcements arranged on both sides of the plurality of longitudinal main reinforcements so as to sandwich the entire plurality of longitudinal main reinforcements, the mesh reinforcements comprising: Reinforcement for a lightweight aerated concrete panel, characterized in that the vertical line is located inside the horizontal line, the horizontal line is fixed to the vertical main reinforcement, and the horizontal main reinforcement is formed of square steel. structure.