JPH04146B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a waterproof roofing method using metal plates for a dome-shaped roof.

``Prior Art'' In waterproofing the roofs of buildings, metal plates such as stainless steel have come to be widely used as waterproof face plates because of their superior mechanical strength, weather resistance, and durability. In this waterproofing method, generally, a band-shaped metal face plate formed to a predetermined width is
They are connected to each other by welding, and are easy to install on flat roofs and roofs with quadratic curved surfaces, and have excellent effects.

However, when the shape of the roof to be constructed is a dome shape with a three-dimensional curved surface, it is difficult to fit together, and it becomes extremely difficult to weld the metal face plates together, especially at the top of the roof, resulting in incomplete waterproofing. For this reason, dome-shaped roofs are now waterproofed with sheets or coatings.

``Problems to be Solved by the Invention'' The above-mentioned sheet waterproofing and coating waterproofing are easy to apply and are easy to install on three-dimensionally curved roofs, such as dome-shaped roofs, but they have a short service life and often require repair. There are disadvantages such as having to carry out construction work, which in most cases requires complete restoration. Therefore, there is a strong demand for waterproofing using metal plates for waterproofing construction of dome-shaped roofs.

In view of this situation, the present invention aims to provide a method for waterproofing dome-shaped roofs, which can be reliably and easily constructed using metal plates, and which can provide waterproof roofing with excellent strength and durability. It is something to do.

"Means for Solving the Problems" Next, the configuration of the present invention will be explained with reference to the drawings.The present invention provides a dome-shaped roof structure with a roof structure installed at the top of the roof structure, which is one step higher than the upper surface of the roof structure. Add a protrusion base with the required width, and install a waterproof board for the protrusion base made of a metal plate on the top surface of this protrusion base.
A large number of long fan-shaped trapezoidal metal waterproof face plates with raised parts formed on both sides are laid on the roof frame excluding the protruding parts, and these face plates are joined to each other at their raised parts by seam welding. the end of the connected raised part is bent and overlapped on the face plate, the end is overlapped with the outer periphery of the protrusion pedestal waterproof plate, and is integrally joined by seam welding. This is a characteristic feature.

"Function" According to the present invention, waterproof roofing using metal plates on a dome-shaped roof structure is carried out in two stages: a raised protrusion at the top of the roof structure and its outer periphery. Become. Generally speaking, large dome roofs have a very gentle curvature, so if a large number of strip-shaped metal plates are joined together, it is possible to lay them in a smooth manner. Construction of the top of the dome roof, which is said to be the biggest difficulty, involved adding a raised protrusion to the top of the roof frame, and constructing that part separately from the rest of the roof, making the protrusion waterproof. By joining the plate to the metal waterproof face plate laid on other parts, construction can be achieved by seam welding.
This means that waterproof roofing can be done using metal plates that are reliable and easy to work with.

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

In the figure, 1 is a building with a dome-shaped roof, and the periphery is supported by many pillars 2, etc., and the top of the dome-shaped roof frame 3 has a projection of the required width that is one step higher than the top surface of the roof frame. A table part 4 is added, and its upper surface is formed into a gently curved surface. In the present invention, providing this protruding base portion 4 is one of the important points. Then, on the upper surface of this protrusion base part 4, a protrusion base part waterproof plate 5 made of a metal plate and having a width that projects outward from the periphery of the protrusion base part 4 is laid.
This protrusion waterproof plate 5 has metal face plates 6, 6 of a fixed width, such as stainless steel plates, on which raised parts 7 are formed on both side edges.
are arranged in parallel and connected to each other at the vertical parts 7, 7 by seam welding. At this time, the upright part 7 is fixed to the protrusion part 4 by simultaneously welding it to a hanger (not shown) attached to the protrusion part 4. After welding, the outer end of the upright portion 7 is bent 7a over a required length as shown in FIG. 3 and overlapped 7a onto the face plate 6.

Next, on the body of the dome roof excluding the protruding base part 4, a metal plate of a fixed width, such as a stainless steel plate, is cut into a tapered shape to form a long fan shape, and a rising part 7 is formed on both sides of the metal plate. The trapezoidal metal waterproof face plate 8 is used as a waterproof face plate. The length of this metal waterproof face plate 8 is such that its short side can protrude upward along the peripheral wall of the protruding base portion 4, and its long side can protrude outward from the outer peripheral edge of the roof frame 3. . Then, the trapezoidal metal waterproof face plates 8, 8 are laid out on the roof body 3 and seam welded to each other at the upright parts 7, 7. At this time, a hanger (not shown) is attached to the roof body 3. The standing parts 7, 7 are welded at the same time, and the metal waterproof face plates 8, 8 are laid. In addition, both ends of the rising portion 7 of each metal waterproof face plate 8, 8 are bent over a required length as shown in FIG.
a, and the short end thereof is bent 9 upward as shown in FIG. 4, and is made to protrude above the protruding base part 4 along the peripheral wall of the protruding base part 4. In addition, at this time, the outer circumferential portion of the protrusion base portion waterproof plate 5 is also bent upward and overlapped with the face plate 8, and both are joined 10 by seam welding.

Next, as shown in Fig. 5, the outer periphery of the protrusion waterproof plate 5 is wound around the tips of the previous metal waterproof face plates 8, 8, and then the upwardly protruding part is rolled horizontally as shown in Fig. 6. Or bend it diagonally downward. Also,
As shown in FIG. 7, the outer periphery of the metal waterproof face plates 8, 8 is fixed 13 by welding to a metal waterproof face plate 12 installed on a terrace 11 or the like that is provided with a step from the roof frame 3, or If the metal waterproof face plate is not bound to other waterproof face plates, the outer peripheral part of the metal waterproof face plate is either extended diagonally downward or bent downward.

"Effects of the Invention" As explained above, according to the present invention, when waterproofing a dome-shaped roof using a metal plate, a raised protrusion is added to the top of the dome. The upper surface of this protrusion was waterproofed by laying a protrusion waterproof plate made of metal plates, and many metal waterproof face plates in the shape of a ladder were installed on the dome roof frame excluding the protrusion. Lay them side by side and connect them to each other by seam welding at their raised parts. Both ends of the raised parts joined with this metal waterproof face plate are bent and overlapped on the face plate, and the short side of the metal waterproof face plate is Since the end portion is wrapped around the outer periphery of the protrusion base waterproof plate and the two are integrally joined by seam welding, each metal waterproof face plate cannot be welded on its short side due to the protrusion base. As a result, the seam welding of each face plate can be performed reliably and efficiently, and the amount of material cut off when forming these face plates is also saved. The cost of the face plate can be reduced. In addition, the connection between the metal waterproof face plate and the protrusion waterproof plate is easy to bend at the ends, as each face plate is bent at each end to the connected raised part and overlapped on the face plate. Moreover, seam welding can be easily and reliably performed. As a result, excellent effects such as good workability and waterproof construction can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view showing an example of construction, FIG. 2 is a plan view of the same, FIG. Figure 4 is a side sectional view showing the state in which the protrusion waterproof plate and the metal waterproof face plate are connected, and Figure 5 is a side sectional view showing the protrusion base waterproof plate wound around the metal waterproof face plate. FIG. 6 is a side sectional view showing the bonded portion bent horizontally, and FIG. 7 is a side sectional view showing the state in which the outer peripheral portion of the metal waterproof face plate and another face plate are bonded. DESCRIPTION OF SYMBOLS 1...Building, 3...Roof frame, 4...Protrusion base part, 5...Protrusion base waterproof plate, 6...Katsupa metal face plate, 7...Rising part, 7a...Bending part, 8... Metal waterproof face plate, 10... binding part.

Claims (1)

[Claims] 1. At the top of the dome-shaped roof frame, add a protrusion base of the required width that is one step higher than the top surface of the roof frame, and on the top surface of this protrusion base, install a waterproof board for the protrusion base made of a metal plate. A large number of trapezoidal metal waterproof face plates, which are long fan-shaped and have raised parts on both sides, are lined up on the roof frame excluding the protruding parts, and each of these face plates is seam welded to each other at the raised parts. The ends of the joined standing parts are bent and overlapped on the face plate, the ends are overlapped with the outer periphery of the above-mentioned protrusion base waterproof plate, and they are integrally joined by seam welding. characterized by
Waterproof roofing method using metal plates for dome-shaped roofs.