JP4199162B2 - Membrane roof structure and its laying method - Google Patents

Description

  The present invention relates to a membrane roof structure for laying a roof at a low cost and a method for laying the same in order to prevent rainwater from entering a wide area.

  Conventionally, a roof to be installed in order to suppress rainwater intrusion in a wide area has been constructed as a permanent building having a certain fire resistance regardless of use under the same conditions as a normal roof. For example, even on the roof of the waste final disposal site, a normal folded plate roof used for a warehouse or the like is used, although it is installed only for the purpose of suppressing the intrusion of rainwater.

  The prior art is generally practiced among those skilled in the art, and does not relate to a known literature invention.

  Such a folded-plate roof is difficult to install on a complex site between mountains, requires a lot of pillars, and costs as a roof as a roof to be installed under normal building structural conditions. There are restrictions.

  The purpose of the present invention is to solve the inconvenience of the above-mentioned conventional example, with a simple frame so that the base can be reduced and the roof can be built in a complicated site shape where the roof has been difficult to build. To do.

  The roofing material is made of fabric-like material without waste, the fastening details are simplified, and the stress on the membrane material is reduced, so that the material of the membrane material does not need to be particularly strong. Widen the range of types of membrane materials that can be used to reduce costs.

  And, depending on the situation, the roof slope can be changed freely while it is laid, improving safety, making it easy to hang the roof, allowing it to be treated as a temporary construction, and restricting legal restrictions. Membrane roof structure that can suppress the cost and reduce the cost from this aspect, and facilitate all-weather construction (construction that is not affected by rain) using the roof, and a method for laying the membrane roof Is to provide.

  The invention according to claim 1 is a membrane roof structure in which a central suspended cable material is attached to the center in the length direction, and a membrane material having an end suspended cable material attached to the periphery, It consists of a column that supports the suspended cable material in the center and a foundation that pulls and fixes the suspended cable material at the end, and suspends the membrane material by tilting it downward on both sides around the position of the suspended cable material in the center. This is the gist.

  According to the first aspect of the present invention, since the membrane material is simply suspended from the support by the central suspension cable and is stretched to the foundation by the suspension cable at the peripheral edge, the attachment is easy. Thus, the force applied to the membrane material is small and the material of the membrane material does not require a large tensile strength. In addition, it is possible to hang down the roof while laying it down by simply changing the suspension point from the column, and it is possible to flexibly cope with surrounding conditions by lowering the roof or changing the roof slope.

  The gist of the invention of claim 2 is that the membrane material is formed to have a predetermined membrane material width by connecting the workpieces in the width direction with the warp cable material in the width direction.

  According to the second aspect of the present invention, since the film material is formed simply by connecting the workpiece in the opposite width direction without cutting the workpiece, it is easy to manufacture and the film material can be used without waste. In addition, since the distance between the membrane cables is constant and the roof membrane is not subjected to a large force as described above, the distance between the cables supporting the membrane can be made larger, resulting in fewer cables used per unit area. .

  The gist of the invention described in claim 3 is that the membrane material forms a hole for venting at the position of the central suspended cable material.

  According to the third aspect of the present invention, by providing the air vent hole, it is possible to cope with the blowing of the wind from below, and it is possible to avoid the situation where the film material is beaten and blown. Moreover, this hole can be easily formed by the attachment method of the film material of a general part. It is possible to prevent rainwater from entering from the hole by devising a method of attaching the suspension material to the suspension cable at the center of the membrane material.

  The present invention according to claim 4 is a method of laying a membrane roof, wherein the central suspended cable material is a membrane material in which a central suspended cable material is attached to the center in the width direction and an end suspended cable material is attached to the periphery. The suspension cable is suspended from the support column, and the suspended cable material at the end is pulled and fixed by the foundation, and the membrane material is suspended from the suspended cable material at the center and the suspended cable material at the end. Is.

  According to the fourth aspect of the present invention, the membrane material can be easily stretched by simply lifting the central suspended cable material along the support and pulling the suspended cable material at the end and fixing it to the foundation. Also, since the number of foundations is small and it is only necessary to fix the suspended cable material at the end, it can be made spot-like and the installation location can be freely selected. But it can be easily constructed.

  Furthermore, since it is easy to hang down the roofing material, it can be used as a temporary building that is limited to use within a year, for example, it is easy to repair and maintain, and is not durable. It can also be used.

  As described above, the membrane roof structure and the method of laying the membrane roof of the present invention are simple in structure, and only require lifting the central suspended cable material along the support, without using a large-scale machine such as a crane. Since the membrane material is installed in a state of being suspended from the central suspended cable material, there is little stress on the membrane material, and the material of the membrane material does not require a particularly strong material. Can widen the range of types of membrane material that can be used, and by moving the central suspended cable material up and down along the column, the slope of the roof membrane can be freely lowered or laid down depending on the situation The safety can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the membrane roof structure of the present invention. The membrane roof structure of the present invention is a membrane material 2 to which a support column 1, a central suspended cable material 3 and an end suspended cable material 4 are attached. And a foundation 5 on which the suspended cable member 4 at the end is pulled and fixed.

  The struts 1 are erected by using, for example, steel frames so as to face each other at intervals of the roof width and to stand one by one. As shown in FIG. 2, the support column 1 is provided with lifting means 9 for lifting the central suspended cable member 3. The elevating means 9 uses, for example, an electric winch, and a slide member 9b that is moved up and down by an electric winch is attached to a slit 9a formed in the vertical direction on the support column 1, and one end of a central suspended cable member 3 is attached to the slide member 9b. Were combined.

  As shown in FIG. 3, the membrane material 2 uses a fabric 6 as shown in FIG. 4, and is connected in a layout in which a plurality of warp cable materials 7 are arranged in parallel in the width direction in the width direction as shown in FIG. 3. A predetermined film material width was formed. The warp cable material 7 has a function as a reinforcing cable. As shown in FIG. 3B, the ends of the pieces to be connected are overlapped with each other so that the warp cable material 7 is inserted into the overlapping portion. I made it.

  As a result, the workpiece 6 is connected in the width direction without using a special connection fitting or the like, and the film material 2 having a predetermined width is obtained. And since the warp cable material 7 is interposed in the connecting portion, the strength of the entire membrane material 2 is increased. Further, since the workpiece 6 is simply connected in the width direction by cutting a desired length of the film material 2, it can be cut without three-dimensional cutting, and can be easily manufactured using materials without waste.

  A central suspended cable member 3, one end of which is attached to the column 1, is attached to the center position in the length direction of the membrane member 2. In this case, the membrane material 2 is cut into half the length in the length direction of the roof membrane, and is left unbonded at the center position in the length direction of the roof membrane, and the central suspension is placed on this portion. The cable member 3 is arranged, and only the end portions of the opposite widths of the plurality of pieces 6 arranged side by side are attached to the central suspended cable member 3.

  Thereby, the fabric 6 connected in parallel in the horizontal direction is coupled only to the suspended cable member 3 at the center in the longitudinal direction (longitudinal direction), and the fabrics 6 are not connected to each other at the end. No special film attachment method is required in the ridge portion, and a gap is formed in this portion. Therefore, this gap is used as an air vent hole 8.

  The suspended cable member 4 at the end is attached to the peripheral edge of the membrane member 2 in the length direction and the width direction.

  The foundation 5 is spot-installed in four directions centering on the standing position of the support column 1, and can be installed even on a poorly erected site where the membrane roof is laid out in an irregular shape with a height difference, for example. And

  In order to lay the membrane material 2 at a predetermined location, as shown in FIG. 5, two columns 1 are erected at the laying location so as to face the roof width, and are positioned between the columns 1 and 1 and placed on the ground. Spread material 2. In this case, the central suspension cable member 3 and the end suspension cable member 4 are attached to the membrane member 2 in advance.

  Moreover, the base 5 is provided and the end of the suspension cable member 4 at the end is fixed to this.

  In this state, when the lifting / lowering means 9 provided on the support column 1 is operated and the end of the central suspended cable member 3 is pulled up along the support column 1, the length of the membrane material 2 is increased as shown in FIG. The center of the direction is raised. The lifting height is determined according to the roof slope to be obtained.

  When the central suspended cable member 3 is pulled up to a height at which a predetermined roof slope is obtained, the suspended cable member 4 at the end is pulled to adjust the tension balance and fix it to the foundation 5.

  In this state, the membrane material 2 is suspended from the central suspended cable material 3, and no tension is applied to the membrane material 2 other than stretching its own membrane. Therefore, it is not necessary to use the film material 2 that requires a high strength as the material.

  Further, as shown in FIG. 3, the film material 2 is formed by connecting the workpieces 6 in the width direction, so that some slack occurs in the width direction in the laid state. Since this slack is formed in the direction of the slope of the roof, it functions as a gutter, allowing rainwater and snow to flow easily, and reducing the stress burden on the roof membrane during rainfall and snowfall.

  When the snow falls, as shown in FIG. 7, the height of the central suspended cable member 3 and the installation position of the foundation 5 are changed to increase the gradient of the membrane member 2, thereby making it difficult to accumulate snow.

  In addition, although the wind pressure from below due to normal blowing can escape from the hole 8 for wind release, in the case of strong winds such as typhoons, the gradient of the film material 2 is reduced and lowered to a position close to the ground to make it less susceptible to wind pressure. . Then, if necessary, the holding cable 10 is stretched over the membrane material 2 to prevent the membrane material 2 from being blown by wind.

  The down cable member 11 can be installed as shown in FIGS. 9 and 10 to reduce the deformation of the overall roof surface in the out-of-plane direction.

  As described above, the roof membrane of the present invention can be easily hung up and down by simply raising and lowering the central suspended cable member 3 along the support column 1, so that the roof membrane is limited to use within one year, for example. Since it can be used as a building and can be easily repaired and maintained, even if the membrane material 2 is not excellent in durability as a material, it can be used.

It is a perspective view which shows embodiment of the membrane roof structure of this invention. It is a partial perspective view of the support | pillar of the principal part which shows embodiment of the membrane roof structure of this invention. It is a perspective view of the membrane material of the principal part showing the embodiment of the membrane roof structure of the present invention. It is a perspective view of the fabric for producing the film | membrane material of the principal part which shows embodiment of the membrane roof structure of this invention. It is a perspective view before lifting the film | membrane material which shows embodiment of the laying method of the film | membrane roof of this invention. It is a perspective view of the state which lifted up the membrane material which shows the embodiment of the laying method of the membrane roof of the present invention. It is a perspective view at the time of snowfall which shows embodiment of the laying method of the membrane roof of this invention. It is a perspective view at the time of the typhoon which shows embodiment of the laying method of the membrane roof of this invention. It is a perspective view at the time of installing the down cable material which shows embodiment of the laying method of the membrane roof of this invention. It is a perspective view of the other example at the time of installing the down cable material which shows embodiment of the laying method of the membrane roof of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Membrane material 3 Suspended cable material 4 Suspended cable material 5 Foundation 6 Workpiece 7 Warp cable material 8 Vent hole 9 Lifting means 9a Slit 9b Slide member 10 Holding cable material 11 Pulling cable material

Claims (4)

  A central suspension cable material is attached to the center in the length direction, a membrane material having an end suspension cable material attached to the periphery, a support column that is erected at an opposite position and supports the suspension cable material in the center, and an end portion A membrane roof structure characterized by comprising a foundation for pulling and fixing the suspended cable material, and suspending the membrane material inclined downward on both sides of the center suspended cable material position.   The membrane roof structure according to claim 1, wherein the membrane material is formed to have a predetermined membrane material width by connecting the fabrics in the width direction with warp cable members in the width direction.   The membrane roof structure according to claim 1 or 2, wherein the membrane material forms an air vent hole at a central suspended cable material position.   A central suspended cable material is attached to the center in the width direction, and the central suspended cable material is attached to the peripheral edge of the membrane material with the suspended cable material attached to the periphery. A method for laying a membrane roof, comprising pulling and fixing a cable material on a foundation and suspending the membrane material from the central suspended cable material and the suspended cable material at the end.

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