JPS601466B2 - renovated building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a renovated building in which a new exterior wall material is placed outside the old exterior wall material when the exterior wall material of an existing building is renovated.

In buildings that were constructed a long time ago, over the years, the exterior wall materials have weathered, corroded, cracked, and become stained due to wind and rain, vibrations, and air pollution, making the building's exterior look poor and causing problems such as peeling off of the exterior wall materials. This would create an extremely dangerous situation, and it would be necessary to replace the exterior wall materials with new ones. Conventionally, when renovating a building, the old exterior wall materials were first removed from the entire surface of the building, and then the new exterior wall materials were installed on top of that. When stripping off the old exterior wall materials, it made a lot of noise and caused pollution by scattering dust into the surrounding area, and it also took a long time to renovate. In order to solve this problem, for example, as shown in Tokukan Sho 52-55225, the old external wall materials of wooden buildings are left without being removed from the building framework, and appropriate supporting metals are placed on top of them. There are construction examples in which new exterior wall materials are installed through the roof, but since the watertightness of wooden buildings is ensured by the tiled roof at the top, the above construction example eliminates the risk of water leakage. However, in the case of Jinyaro type buildings such as reinforced concrete buildings, the top of the building, the cap, is exposed to the wind and rain the most and is usually severely weathered, corroded, or stained. It is not possible to ensure sufficient water-resistance with only this construction method. In other words, when building this kind of reinforced steel or steel-framed concrete, the old exterior wall material is removed from the building body, the old cap is removed, and new exterior wall materials and new caps are installed on top of this. Although there is not much of a problem, if the old exterior wall material is left without being removed from the building body and a new exterior wall material is installed on top of it, it is natural that the new exterior wall material will extend from the old Kasagi part to the outdoor side. Because there is a large amount of protrusion, even if watertight treatment is applied between the top end of the new exterior wall material and that of the old exterior wall material using a sealing material such as caulking material, the area between the old and new exterior wall materials from the old Kasagi part,
Alternatively, rainwater entered the building frame from the attachment point of the supporting hardware that supports the new exterior wall material, causing water to leak indoors in a short period of time. In view of this, the present invention does not remove the old exterior wall material from the building, but leaves the old exterior wall material in the building and installs a new exterior wall material on the outside so that the old exterior wall material covers the old exterior wall material. At the same time, the above-mentioned pollution is eliminated and the number of days required for renovation work is significantly reduced by devising a unique method for rain protection at the top of the exterior wall material. For example, as shown in Figure 1, the exterior wall material 1 of an existing building frame A whose exterior walls are tiled is replaced with a new exterior wall material 2, such as curtain wall or spandrel (trade name), as shown in Figure 2. When replacing, the present invention is to attach a cap mounting member 4, which is a relatively long support hardware, to the old cap board part 3, which is the top wall of the old exterior wall material 1 in the building frame A, in the longitudinal direction of the top wall, as shown in FIG. They are arranged at required intervals and fixed with a foundation shield inserting punch (for example, Holin Anchor, trade name) 5.

At this time, a long hole 4a is pre-drilled in the Kasagi mounting member 4, and when the mounting member 4 is fixed at the foundation tank-containing village 5, the mounting member 4
is moved in the width direction on the old Kasagi part 3 along the closest hole 4a, and the amount of protrusion of the mounting pieces 4b and 4c provided at both ends of each mounting member 4 to the indoor and outdoor areas is adjusted. unit 6
Also serves as positioning when installing. Next, in advance, the Kasagi board 6a
The Kasagi receiving plate 6b is integrally fixed to the Kasagi receiving plate 6b, and both ends of the Kasagi receiving plate 6b in the width direction are bent into an L shape to form connection pieces 6c and 6d, and a mounting bracket 6e is attached to the back side of the Kasagi receiving plate 6b in the longitudinal direction. A Kasagi unit 6 is manufactured by integrally welding a reinforcing rib 6f and a reinforcing rib 6f, and this Kasagi unit 6 is mounted on the Kasagi mounting portion 4, and the mounting bracket 6e of the Kasagi unit 6 and the connecting piece 6d are connected. It is welded to the mounting pieces 4b and 4c of the Kasagi mounting member 4, and mortar 7 is appropriately filled between the reinforcing rib 6f and the Kasagi mounting member 4 to strengthen the support of the Kasagi unit 6 to the old exterior wall material 1. Also, on the outer surface of the building frame A, old external wall materials 1' are installed with foundation tanks 8, and support bases 9, which are angle-shaped support hardware, are installed at a required number of locations, and between these support bases 9 are installed. A support frame 10, which is a vertical support hardware, is constructed and welded, and the vertical support frame 1
A horizontal supporting frame 11 is erected and fixed over a distance of 0.0000000000000000000000000000000000000000000000000000000000000000.00 0.0000000000000000000000000000000000000000000000.00 0.000000000000000000000000000000000000000000000.00 0.00000000000000000000000000000000000000.00.
As shown in FIGS. 4 and 5, inside the window entrance section 12 of the building base A, the main frame 13 of the old window frame is cut away with unnecessary protruding parts, and its base part is removed. One end of the support member 14 is left on the concrete wall, and one end of the support member 14 is welded to the upper frame 13a of the frame main body 13 of this old window frame and the side frame (not shown), and the other end of this support member 14 is attached to the frame of the window frame. A connecting portion village 15 is made to protrude outward from the building frame A from the main body 13 and welded to the projecting end, and further this connecting portion village 15 is welded and fixed to the vertical support frame 10. Also, a supporting member 1 is attached to the lower frame 13b (FIG. 5) of the old frame main body 13.
At the same time, one end of the support member 16 is made to project outward from the window opening 12, and an inverted L-shaped reinforcing member 17 is welded to this projecting end. Furthermore, the reinforcing member 17 is welded to the vertical supporting frame 10 below the window opening □ portion 12, and the receiving member 18 is attached to this reinforcing member 17. Reference numeral 19 denotes a newly installed aluminum window frame.As shown in FIG. The anchor auxiliary hardware 21 is attached to the locking piece-shaped protrusions 20a, 20a using the fork-shaped support pieces 21a, 21a on the upper frame 19a and the side frames, and from this state, the window frame 19 is removed. Upper and lower support frames 10, 11, 10, 1 located outside the old exterior wall material 1 and sandwiching the window opening 12
The lower frame 19b of this new window frame 19 is fixed with screws to the receiving member 181, and the upper frame 19a and side frames are connected to the anchor fittings 21 and the connecting member. 15 and is fixed by a mounting bracket 22 welded across.

Even if the window frame 19 is placed outside the old exterior wall material 1 in this way, the connecting member 15 and the receiving member 18 are fixed to the support frame 10, and the support members 14 and 16 prevent the old window frame 13, so there is no need to worry about its strength. Next, as shown in FIG. 4, a drain plate 23a is installed between the upper frame 19a of the new window frame 19 and the horizontal supporting frame 11, and the lower frame of the new window frame 19 is installed as shown in FIG. Attach the drain plate 23b to 19b. Using the above-mentioned vertical and horizontal support frames 10 and 11, a new exterior wall material 2 is applied to the outside of the frame, and the required parts of this exterior wall material 2 are fixed to the horizontal support frame 11 with screws, and the old A new exterior wall material 2 is installed leaving a space on the outside of the exterior wall material 1 with a support base 9 and vertical and horizontal support frames 10 and 11.The top end of this new exterior wall material 2 is attached to the building frame A. In the old Kasagi part 3, the above-mentioned Kasagi board 6
It is covered by protruding into a recess 24 formed by continuously bending the outer wall side tip part of a into an uneven shape, and in this recess 24, the Kasagi unit 6 and the uppermost end of the outer wall material 2 are connected to the sealing material 2.
Watertightly coupled by 7. Immediately below the window opening 12, the upper end of the new outer wall material 2 is inserted into the recess 25 provided in the draining plate 23b, and the new outer wall material 2 is connected in a watertight manner with a sealing material. As a result, the space between the old exterior wall material 1 and the new exterior wall material 2 is closed off by the thick shade board 6a and the drain board 23, respectively. In addition, the new window frame 19 and the indoor side of the window opening 12 are connected so as to close the old window frame 13, supporting members 14, 16, connecting members 15, receiving members 18, etc. in the window opening □ section 12. By attaching health plates 26a and 26b between them, the old window frame 13 is covered and the appearance is improved. As described above, the present invention allows new exterior wall materials to be placed on the old exterior wall materials via supporting hardware without removing the old exterior wall materials, so there is no need to strip off the old exterior wall materials when replacing the exterior wall materials. This greatly reduces the number of work days required to renovate a building, making it possible to renovate a building in a relatively short period of time, and also eliminates the noise and dust pollution caused by stripping off old exterior wall materials. Beneficial.

In addition, when renovating a building, it is necessary to assemble a work scaffold close to the building, but with the present invention, there is no need to remove the old external wall, so it is possible to install a suitable support structure into this old external wall material. Scaffolding can be attached to this, and there is no need to assemble the scaffolding independently from the ground surface as in the past, which simplifies the scaffolding installation work and shortens the number of days required for renovation work. In particular, in the present invention, in a building with a dome roof type such as a building made of reinforced steel or steel-framed concrete, the old cap that protrudes from the top of the building frame remains without being removed from the building frame, By attaching a new cap to this, construction is as easy as installing the exterior wall material.Moreover, this new cap is designed to cover both the entire surface of the old cap and the top end of the new exterior wall material. Once installed, the new cap and the new exterior wall material are watertightly connected in this state, making it possible to quickly and reliably shut off rain between the old and new exterior wall materials, and between the new exterior wall material and the old cap. can.

[Brief explanation of drawings]

Figure 1 is a front view showing the exterior of the building before renovation, Figure 2
The figure is a front view showing the exterior of the renovated building. Figure 3 is an enlarged longitudinal sectional view showing the top wall of the renovated building, Figure 4 is an enlarged longitudinal sectional view showing the upper frame of the window of the renovated building, and Figure 5 is the window of the renovated building. It is an enlarged vertical side view showing a lower frame part. 1... Old exterior wall material, 2... New exterior wall material, 3... Old Kasagi part, 6... New Kasagi, 9, 10, 11...・・Support hardware (support base,
(Support frame), (Kasagi unit), 27... Seal material. Sazuruko Sagigata side koji large amount of fishing

Claims (1)

[Claims] 1. Fix supporting hardware to the old exterior wall material that remains without being removed from the building frame, wrap and spread the new exterior wall material over the old exterior wall material via the support hardware, and also remove it from the building frame. Attach a new cap to the old cap that was left intact at the top so that it covers the entire surface of the cap and the top end of the new exterior wall material, and connect the new cap and the new exterior wall material in a watertight manner. A renovated building.