JPS605960A - Wall remodeling method of existing building - 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 construction method for renovating an existing building by covering the outer wall surface with metal panels. Conventionally, when renovating the exterior walls of an existing building, the method of installing tiles has generally been used, but there are drawbacks such as the construction is not easy, the construction costs are high, and the construction period is long. In order to solve the above-mentioned conventional problems, this invention proposes a rational construction method that is simple to construct, requires less construction cost and construction period, and is also easy to dismantle and partially renovate. . The present invention will now be described with reference to the drawings. First, anchor metal fittings 2 are fixed to the outer wall surface 1 of an existing building in a series L-shaped manner at predetermined intervals in the downward and left-right directions. This anchor hardware 2 has a vertically long steel joint plate 2b vertically welded to the surface of a steel base plate 2a (7) and has a pear-shaped cross section, and has elongated holes provided in at least two places on the WI4 base plate 2a. 3, embed it in the outer wall surface 1 in advance and fix it by passing the fixing bolt 4 and tightening it with the nut 5. In this case, scrape off a part of the outer wall surface 1 to which the anchor hardware 2 will be attached, and install it by mounting it. Adjust the surface appropriately and adjust the installation +f! of each anchor hardware 2 so that the vertical direction of the joint plate 2b matches exactly. After fixing the anchor hardware 2 in this way, A rim 6 made of channel steel or the like is fixed to the joint plate 2b of the matching anchor metal IIg□2.2 with bolts, and then the rim 6 is continuously fixed in the vertical direction of the outer wall surface 1 in the same manner. Next, horizontally long exterior wall panels 7 are successively attached to the left and right side-by-side furrings 6 from the bottom to the top of the exterior wall surface 1.This exterior wall panel 7 is used as a formwork for creating a floor slab. A lightweight and highly rigid corrugated plate such as a deck plate is used, and on the back side of the plate, multiple vertical and horizontal 8's for reinforcing and fixing, such as angle steel, are welded and fixed at predetermined intervals on the left and right at the factory. A joint metal fitting 9, such as an angle metal fitting, whose tip protrudes horizontally is fixed by welding to the side surface of the upper end.Furthermore, a hook whose tip protrudes upward is placed at a predetermined position on the slope of the corrugated plate at the lower end of the back surface of the outer wall panel 7. A mold-shaped locking piece 1o is fixed by welding.Meanwhile, on the side of the flange 61 to which the outer wall panel 7 is attached, the joining hardware 11 to be joined by overlapping the joining hardware 9 of the outside wall panel 7 is placed in a predetermined position. It is fixed with bolts, and the front side receives the locking piece 1° of the outer wall panel 7, and the hook-shaped tip protrudes downward. (An anti-vibration material 13 made of neoprene rubber or the like is attached to buffer the locking piece 1o engaged in the piece 12. When installing the outer wall panel 7, the locking piece at the bottom thereof)
0 on the body rim 6 and the lower part was locked by engaging between the piece 12 and the vibration isolator (A 13). They are stacked on top of each other and fixed together with bolts 14.Then, they are successively constructed on the left and right using the same process, and then the exterior wall panels 7 are successively installed above.In this case, the upper and lower exterior wall panels are opposed to each other. - The lower ends are overlapped as shown in the figure and integrated continuously. By performing the installation work of the outer wall panels 7 in this way, the joining hardware 9.1 can be easily installed in the space above each panel 7.
1 bolt tightening work can be carried out, and an attractive finish can be achieved without any unsightly members such as bolts being exposed on the outer surface of the panel. On the other hand, a minute gap is maintained between the joints 1' between the exterior wall panels 7 and 7 that are connected in the structural direction, and this joint T is located at the same position in the upper and lower exterior wall panels 7, so that there is a slight gap in the downward direction. Make a straight line - ni continuous. In order to prevent rainwater etc. from entering through this joint T, rain protection construction is performed. That is, the furrow 6 near the joint T is provided with a groove-shaped @ll! via a support arm ]5 in advance. 16 is fixed in a series below the bow, thereby surrounding the inside of the joint part T. The outside of this downspout 16 is formed with unevenness that is approximately the same as the unevenness of the outer wall panel 7, so that it closely engages with the back surface of the outer wall panel 7, so that wind and rain do not blow into the inside even in strong wind and rain. Rub it. More

[As shown in 2, the installation of the exterior wall panels 7 is carried out continuously from the lower end of the exterior wall surface 1 to the upper end, but due to the need to secure the scaffolding during construction and the need to be able to remove the repaired parts after installation, each A curtain plate 17 is attached in the middle of the surgery. Channel steel is used as this curtain plate 17, and bolts 18 are attached to the joint plate 2b of the anchor hardware 2, whose bottom surface is arranged in series in the construction direction.
and fix it to the bracket 19 with bolts 2o. Note that the gap between this curtain board 17 and one end of the outer wall panel 71 below is provided by a draining board 2 fixed to the upper end of this panel 7.
1, and the gap between the lower end of one of the outer wall panels 7 is closed by a draining plate 22 fixed on the curtain plate 17. Yes
:, The joints between the curtain plates 17 and 17 that are connected to the left and right are connected vertically to the joints T of the outer wall panels 7, as well as the joints T! !
] 6 It's raining. Curtain plate] 7 is also fixed to the upper end of the outer wall surface 1, and a roof plate 23 is attached ++X above between this curtain plate 17 and the outer wall.An opening is provided in the front part of the window of the existing building, and A new window frame 2 is installed between the edge of the outer wall panel 7 around the area and the existing window 119.
Install 4. As described above, according to the present invention, the anchor hardware to be attached to the 9I wall 1n1, the rim to be attached to this anchor hardware, and the exterior wall panel to be attached to this rim can be constructed in one step, so construction costs are low and economical. In addition, construction is easy and the construction period is short. In addition, since the exterior wall panels are made of highly rigid and lightweight metal corrugated sheets, they are easy to install and can be simply fixed to the rim using bolts, etc., and can be disassembled or partially repaired at a later date. Moreover, since the outer wall panel is fixed to the rim on the back surface thereof, a good-looking finish can be achieved without exposing fixing members such as bolts to the outer surface of the outer wall panel.

[Brief explanation of drawings]

Fig. 1 is a front view showing the state of construction using the construction method of the present invention, Fig. 2 is a front view showing the state in which the rim is attached, and Fig. 3 is a partially enlarged longitudinal sectional side view showing the state of construction using the construction method of the present invention. , Figure 4 is a cross-sectional view taken along ■--■ in Figure 3, Figure 5 is a cross-sectional view taken along ■-■ in Figure 3, Figure 6 is a partially enlarged vertical cross-sectional view showing the construction state of the upper end of the outer wall, and Figure 7 is a cross-sectional view taken along ■-■ in Figure 3. is a vertical cross-sectional view of the window portion. 1... Exterior wall panel, 2... Anchor hardware, 6...
Rim, 7 - External wall panel. Figure 2 Figure 3■

Claims (1)

[Claims] Anchor metal fittings are fixed at predetermined intervals vertically and horizontally on the exterior wall surface of an existing building, and a rim is fixed in a series to the anchor metal fittings arranged in series in the vertical direction, and horizontally elongated metal rims are fixed to the rims parallel to the left and right. A method for renovating the exterior wall of an existing building, which comprises: abutting a corrugated exterior wall panel and fixing it to the rim by tightening bolts or the like on the back side of the exterior wall panel; and successively fixing the exterior wall panel vertically and horizontally