JPS59485A - Fixing of sash in sash pre-attaching method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for fixing a sash used in a sash tip attachment method.

The satsushi tip construction method has recently been adopted at many construction sites as part of labor-saving efforts, but while it has achieved the goals of shortening construction times and saving labor, it has resulted in a decline in quality and accuracy. .

Figure 1 is a front view of a concrete building under construction as seen from the outside. FIG. 2 is an enlarged sectional view taken along the line B--B in FIG. 1.

The outer board is made of thick plywood, and is made of concrete IJ of the building.
- A mold for forming the outer wall, although not shown,
It is supported together with a scaffold configured as a concrete formwork support member. An external formwork 3 is fixed to the outside plate with nails or bolts (7).As shown in Fig. 4 of the CC sectional view of Fig. 3, the external formwork 3 In order to form a mold with the shape of the outside, the opening is made so that the water slopes horizontally and vertically at the top and sides, and at the bottom toward the outside.The outside form 3 has an internal form q. On the outside of the internal formwork, plywood or the like is inserted between the upper frame 6, the vertical frame, and the frame, and is fitted into the opening frame 5, which is assembled in a four-sided manner.

The external mold gallery 3 has a flange /l with an opening rod for assembly and disassembly at the outside end of the square mold forming the outside side of the opening l, and the mounting flange /l has bolts and nuts.
Partition material L that is connected by drilling mounting holes and interposing thin plywood, etc.
The partition member 1 is provided with a fitting portion t3 that is downward facing toward the inside. In addition to the above, reinforcing ribs (not shown) are provided inside the external formwork 3. The outer formwork 3 is generally an upper frame 3-/, a lower frame 3-ko, a vertical frame J-, ? It can be assembled and disassembled at or near the four corners (details are not shown).

The internal formwork DA should be set so that there is a thickness of the inclusions such as plywood mentioned above from the largest rectangular body that passes through the inside and outside directions of the opening frame S, and a slight gap between the bottom frame ta and the bottom frame /4. It is also a rectangular rigid structure with inserts such as plywood inserted.
An end plate lS is placed at a position with a gap from the partition material l of the external formwork 3.
A female-shaped fitting part 16 is provided on the end plate is toward the inside to fit into the outside of the fitting part 13 of the external formwork 3, and the fitting part /, ? The outer formwork 3 and the inner formwork DA are fixed by fastening bolts and nuts 17 inserted through bolt holes penetrating through the holes 3 and 6 (Fig. S).

An inner flange t is provided on the inside side of the inner formwork flange, and an opening 19 for assembly and disassembly is provided at the center of the inner flange t.

For example, a wooden picture frame is placed inside the opening l,
The inner board of the base of the internal finishing material is here, and the insulation material is on the inside of it.
will be arranged. Then, plywood pieces are placed in a rectangular shape on the inner periphery of the wooden picture frame 1 and on the inner periphery of the opening frame j in order to prevent damage to the wooden picture frame 1 (wooden picture frame 1, inner board 1, and insulation material 1). 3. How to support the plywood frame to prevent damage to the wooden frame will be explained later).

The lower part of the partition material/co of external formwork 3 is an opening frame! The screen door rail 5 of the lower frame ia is avoided and retreated to the outside in a stepped manner to form a supporting wall roller, and the opening between the supporting wall ``16'' and the water return core of the lower frame /f of the opening frame S is The auxiliary external formwork t, which has the part that will become the mold of part l, comes into contact with the support wall roller, and the auxiliary external formwork g is formed by the bolt nut knob inserted through the bolt hole of the support wall roller. is fixed to the external formwork 3.

An example of the sash tip construction method described above allows the external formwork and internal formwork to be assembled separately, but integral formwork is often used.

Regarding the present application, it does not matter whether the formwork is integrated or the formwork is divided.

The deformation of the aluminum sash during concrete pouring in the conventional sash tipping method is thought to cause each member to deform inward due to lateral pressure, and the fixation of the sash is not considered in particular, with emphasis placed only on the manufacturing accuracy of the formwork. However, the satsushi frame sometimes deforms to the outside.

FIG. 6 is a diagram showing the deformation of the sash during concrete pouring in the sash tipping method, where the sash indicated by the solid line deforms as shown by the exaggerated two-dot chain line. That is, the opening frame j
The upper frame 6 deforms outward, and the vertical frames t, g, and lower frame /U deform inward.

The amount of deformation of the vertical frames 1, 1 and the lower frame/42 that deform inward is limited by the internal form II, and is prevented by fitting the opening frame S and the internal form D appropriately. The reason why the upper frame 6 deforms outward is that the upper frame 6 generally has a small section modulus, so the vertical frame 7. Even if tapping screws are not sufficient to connect the concrete to the vertical frame 7. t
, the vertical frames q and t deform inward, and then the poured concrete is applied to the upper frame for 6 moments. 7. Vertical frame angled so that the area expands upward. Because both ends are strongly pressed at the l end, the neutral axis of the upper frame 6 is originally in a position that is biased outward, so it should bend inward in conjunction with the concrete pouring pressure, but due to the internal formwork q, it will not bend inward. Can be bent, deformed outward,
It is thought that before the concrete is placed on the upper frame 6 in a state of being deformed outward, a portion of the concrete enters the gap between the inner formwork and the upper frame 6, and the deformation is fixed.

An object of the present invention is to provide a method for preventing outward deformation of the sash in the sash tipping method.

The present invention prevents outward deformation of the sash upper frame by fastening the middle part of the upper frame of the internal form and the upper frame of the opening frame in the sash tipping method.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 7 is a longitudinal cross-sectional view of the upper frame portion in the formwork installation state in the sash tipping method.

The outer material 6-/ of the upper Azusa Otsu, and the inner peripheral material A- between the inner material 6-2
3, and a protrusion 6-da is provided between them to form the upper guide groove t-! of the shoji. r, 4-6 is formed.

And the protrusion A-41 has a locking protrusion 6-? , A-t are provided, and a locking protrusion 4-9 is provided in the groove 6-5 on the outer side member. A fixing member 3g having a short length in a direction perpendicular to the plane of FIG. 7 is inserted by hooking onto the stepped portion 4-10 of the inner member 6-co and the locking protrusion 6-7. And 3 screws for fixing tool 3g! The ends are fixed, and the screw 39 is inserted through the plywood 4'/ and the upper frame of the internal form frame.Insert the seat head into the screw 39, screw in the nut 3, and attach the fixture 3S to the internal form frame. It is drawn and concluded. The fixing member 3g is disposed at an intermediate portion of the upper frame 6, for example, at one or more locations in the center, so that the upper frame 6 does not bend upward.

FIG. 3 is a view in the direction of arrow A in FIG. 7. As shown in the figure, there is a hole in the upper frame of the internal formwork and the plywood 4I/ that can be passed through by pulling the screw 3D in the axial direction when the fixture 3g in Figure 3 is rotated 90 degrees around the screw 39. 414t is drilled, hole 1
A groove aS having a width slightly larger than the outer diameter of the screw 3D is provided on one side of the screw 3D.

Fit the opening frame 3 into the internal formwork via the plywood U/, and
,, Insert the fixing tool 3g from tIq, turn it 90 degrees with the screw 39, and as shown in FIG.
-70, and slot the screw 39 in the longitudinal direction of the upper frame 6 to shift the fixing tool and 3g! into the screws 3 and 3 through the washer q. To remove it, unscrew the Nara l-4IJ in the opposite manner to the above, move the fixture 3t in the longitudinal direction of the upper frame 6, turn it 90 degrees with the screw 3, and pull it out from the hole 4to.

The upper frame 6 of the opening frame j is prevented from curving upward by tightening the upper frame 6 to the internal formwork da through the plywood lIl using the fixture 3g, screws 39, and nuts 13. It also helps in fastening the opening frame j to the internal formwork da.

A short bracket 6 made of angle material was welded to the internal formwork q, a nut duct was welded to the bracket 4!6, and a stopper pg was fixed to the tip inserted through the bolt hole of the bracket 4!6. Bolt 4I9 is provided, and the
g to prevent damage to the picture frame by attaching the plywood core to the wooden picture frame 21 and the wooden picture frame,
The opening frame S is fixed by pressing the flange jθ of the opening frame j to which 2/ is fixed.

As mentioned above, in this method, the upper frame of the opening frame and the inner formwork into which the opening frame is inserted are connected in the sash tipping method, so that the upper frame of the opening frame bulges outward due to concrete pouring pressure. Never.

[Brief explanation of drawings]

Figure 1 is a schematic front view of the building under construction as seen from the outside.
The figure is an enlarged sectional view taken along line A-A in figure 1, and figure 3 is an enlarged sectional view taken along line B-A in figure 3.
B is an enlarged sectional view, Figure 9 is a CC sectional view in Figure 3, Figure S is a DD sectional view in Figure 3, and Figure 6 shows the deformation of the sash in the conventional sash tipping method. A front view, FIG. 7 is a longitudinal cross-sectional view of the upper frame portion of the sash in a state where it is attached to a formwork, and FIG. L...Opening K...Outer plate 3...External formwork J-/
・・Upper frame 3−・・・Lower frame 3−3・・Vertical frame ・・Internal formwork J・・Opening frame 6・・Upper frame A−/・・Outside material 6−2・・Inside material 6− 3.Inner peripheral material 6-4t...
Projection 6-! , 6-4... Upper guide groove t-7, A
-4, A -De...Latching protrusion 6-/θ...Step 7.
T... Vertical frame W... Opening lθ... Bolt nut //...
・Mounting flange → fitting ・・Partition material 13・・Mating part /
41..Bottom frame /jf..End plate /6.--Mating part 17
・・Bolt Nara) 1g・・Inner flange Lde・・Opening Koto・Wooden frame here・・Inner board λ3・・Insulation material Stiffness・・Plywood 5・Screen door rail Corro・Booklet wall Core・・Water return 2g・・Additional external formwork Core...Bolt/nut 3g...Fixing tool 39...Screw II/@-plywood
V2Φ・Washer 11j...Nut 4t4t・-hole 4t
z@-n 4! A--Bracket 7--Nut 41
ff...-F? -・Holt jO・・Flange. Patent applicant Fujisash Co., Ltd. Agent Arai - Department Figure 1 Figure 4 Figure 5 Figure 6 Figure 8

Claims (1)

[Claims] l In the sash tip construction method in which concrete is poured by fitting a sash opening frame into the opening formwork in advance, the upper frame of the internal form of the opening form into which the sash opening frame is fitted and the upper frame of the opening frame. A sash fixing method in the sash tip attachment method in which the gap is fastened at the middle of the upper frame of the opening.