JP2001049906A - Structure and method for mounting membrane on large- span doughnut-shaped membrane roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a membrane mounting structure and a membrane mounting method for roofing a large-span roof with a membrane. SOLUTION: A membrane attaching member 10 which is supported through a rope- like edge on both side edges of a membrane and provided with a groove of C-shaped section for attaching the membrane to pull out the membrane 5 in the horizontal direction on both sides is arranged in an inclined direction of a roof. The rope-like edge provided on both side edges of the membrane 5 are supported through the groove for attaching the membrane of the membrane attaching member 10. A rope-like edge is provided in the longitudinal direction at an approximately intermediate position in the width direction of the membrane 5. A membrane pulling member 25 which can be supported through the rope-like edge at the intermediate position and equipped with the membrane attaching groove of upwardly C-shaped section to pull out the membrane 5 in the upward direction is arranged in the inclined direction of the roof. The rope-like edge at the intermediate position is supported through the membrane attaching groove of upwardly C-shaped section of the membrane pulling member 25, and the tension is introduced in the membrane 5 by pulling the membrane pulling member 25 downward, and the membrane is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder and granular material storage facility for efficiently storing a large amount of powder and granular material typified by coal by production area and type, and mechanizing and storing the material in a first-in first-out manner. The present invention belongs to the technical field of large-span membrane roofs for protecting powders and granules during storage from the weather and preventing scattering, and more particularly, to a membrane mounting structure and a mounting method.

[0002]

2. Description of the Related Art Conventionally, not only in powder and granular material storage facilities, but also roofing of large spans with a membrane material to reduce the weight of the roof has been already practiced (for example, Japanese Patent No. 29463).
No. 76, etc.).

[0003]

A problem in the implementation of a membrane roof is that when a large span roof is covered with a membrane material, the installation of the membrane can be performed rationally by any structure and method with good workability. , Easily and inexpensively in a short construction period. It is required to attach the membrane material to the foundation of the roof frame firmly and firmly, while applying an appropriate tension. It is also required that later maintenance is easy.

Accordingly, an object of the present invention is to lay a large-span roof with a membrane material, which can be carried out rationally, with good workability, safely and inexpensively in a short period of time. An object of the present invention is to provide a film mounting structure and a film mounting method that can be mounted firmly and firmly on a substrate with an appropriate tension, and that can be easily maintained later.

[0005]

As means for solving the above-mentioned problems, a membrane mounting structure for a large span donut type membrane roof according to the present invention according to the first aspect of the present invention comprises a tension ring on an outer peripheral edge and a tension ring on an inner peripheral edge. A compression ring is arranged, a portion between the tension ring and the compression ring is a storage space, and a cross-sectional shape of the roof between the tension ring and the compression ring is formed in a substantially mountain shape, which is continuous in a circumferential direction. A membrane roof mounting structure in which a membrane material is laid on a doughnut-shaped roof, and can be supported through rope-shaped edges on both side edges of the membrane material, which will be described later, and the membrane material can be pulled out in a horizontal direction. Membrane fixing materials having cross-section film fixing grooves formed on both sides are arranged in parallel at a fixed interval in the inclination direction of the roof. The interval between the rope-shaped edges provided at the edge is formed to be substantially the same width as the interval between the film fastening materials, and is formed in a long strip shape in the inclination direction of the roof. The film fixing material is supported through a film fixing groove, and a rope-like edge is provided in a longitudinal direction also at an approximately middle position in the width direction of the film material, and the rope-like edge at the intermediate position is provided. A membrane pulling member having a membrane fastening groove having an upward C-shaped cross section which can be supported through the membrane member and which can be pulled out in an upward direction is disposed in the inclination direction of the roof, and the rope-shaped edge at the intermediate position is fixed to the membrane. The tension member is supported through a film fixing groove having an upward C-shaped cross section, and the film tension member is pulled downward, whereby tension is introduced into the film material and fixed.

According to a second aspect of the present invention, there is provided a membrane mounting method for a large span donut-shaped membrane roof, wherein a tension ring is disposed on an outer peripheral edge and a compression ring is disposed on an inner peripheral edge, and a portion between the tension ring and the compression ring is formed. The membrane of the membrane roof is a storage space, and the roof cross-section between the tension ring and the compression ring is formed substantially in a mountain shape, and is continuously formed in the circumferential direction so that the membrane material is laid on the roof having a flat donut shape. This is a mounting method, which can be supported through rope-shaped edges on both side edges of the film material described later, and the film material is a film fixing material formed on both sides with a film fixing groove having a C-shaped cross section that can be drawn out in the horizontal direction. The film material is arranged in parallel at a constant interval in the inclination direction of the roof, and the film material is formed by adjusting the distance between the rope-shaped edges provided on both side edges of the film material. It is formed to have a width substantially equal to the gap, is formed in a long strip shape in the inclination direction of the roof, and is wound in a roll shape, and the rope-shaped edges on both side edges of the membrane material are formed at the lower ends of the membrane fastening grooves of the membrane fastening material. The guide sheave at the roof top is U-turned by passing a tow rope fixed to the tip of the rope-shaped edge into each membrane fixing groove in accordance with the position, and the other end is wound into a winch, and the winch is driven to drive the membrane. Pulling up the material, supporting the rope-shaped edge over the entire length of the membrane fastening groove, providing a rope-shaped edge in the longitudinal direction at about the middle position in the width direction of the film material in advance, and The membrane material can be supported through the rope-shaped edge, and the membrane material is supported through the rope-shaped edge at an intermediate position in the membrane supporting groove of the membrane tension material formed with the membrane fastening groove having an upward C-shaped cross section that can be pulled out in the upward direction. In, respectively, characterized in that to fix introduces tension the film tensile material pulled into the lower film material.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a membrane mounting structure and a membrane mounting method for a large span donut type membrane roof according to the first and second aspects of the present invention are shown in FIG.

First, an outline of the structure of the roof frame will be described. As shown in FIGS. 1 and 2, a tension ring 1 is disposed on an outer peripheral edge, and a compression ring 2 is disposed on an inner peripheral edge, and a portion between the tension ring and the compression ring is a storage space 3. Are stored forming a mountain 4.

The roofs (roof base structural members) 11 and 13 between the tension ring 1 and the compression ring 2 have a cross-sectional shape slightly larger than the peak 4 of the coal so as to cover the peak 4 of the coal. In the case of FIG. 1, a roof frame having a donut shape having a substantially regular hexagonal plane is constructed by continuously forming the donut shape in the circumferential direction. The tension ring 1 and the compression ring 2 are shown in FIG.
As shown in the figure, the outer pillar 7 and the outer roof foundation structural member 11
At the intersection with the inner pillar 8 and the inner roof base structural member 1
3 is installed at each intersection. A top inner ring 14 and a top outer ring 12 are also arranged at the top positions of the inner and outer roof base structural members 13 and 11, and both rings 14 and 12 are connected by a connecting member 15 in a horizontal radial arrangement, which is advantageous in terms of dynamics. A reasonable and economical roof frame has been constructed.

That is, as compared with the case where the roof is simply constructed as a pillarless dome-shaped roof, the load acting on the mountain-shaped roof basement structural members 11 and 13 is less than the reaction force at the position of the tension ring 1 on the outer peripheral edge. The vertical reaction force is reduced to about 1/3 and the horizontal reaction force (thrust force) is reduced to about 1/8. Therefore, the cross section of the roof base structural members 11 and 13 can be reduced to about ８, and the tension ring 1
In addition, the section of the member of the compression ring 2 can be reduced accordingly.

A loading conveyor 23 connected to an external loading conveyor is installed on the linking member 15, and a pile 4 is formed immediately below by dropping powdery or granular material such as coal stored at the tip of each loading conveyor. A downward charging chute 18 is connected.

As a means for roofing the membrane material on the roof frame, the membrane material 5 is provided with a rope-like edge on which ropes 6 are wound and fastened on both side edges as shown in FIG. In addition, the film material 5 is formed so that the distance between the rope-shaped edges on both side edges thereof is substantially the same as the distance between the film fixing materials described later, and is formed in a belt shape long in the inclination direction of the roof, and wound into a roll. Keep it.

On the other hand, as shown in FIG. 5, the both ends of the film material 5 are tightly held (supported) through the rope-shaped edges.
The film material 5 itself has a C-shaped film fixing groove 10a having a slit capable of being drawn out in the horizontal direction and formed in parallel with both sides, and as an example, a film fixing material 10 which is an extruded aluminum product. However, as shown in FIGS. 3 and 4, they are arranged in parallel with a fixed interval (for example, an interval of 9 m) in the inclination direction of the roof base structural members 11 and 13. Specifically, as shown in FIG. 3, a bundle material 9 having a fixed height (for example, a height of 30 cm) is provided on the upper surface of the roof foundation structural member 11.
And is firmly fixed to the upper end thereof via a downward channel steel 16 used as a base material.

As shown in FIG. 5, a T-shaped groove 10b is formed in the longitudinal direction at the center of the lower surface of the film fastening material 10, and the T-shaped groove 1b is formed.
The film fastening material 10 and the channel steel 16 are firmly integrated by passing the connecting bolt 18 passing through the head side into the hole 0b into a bolt hole provided in the channel steel 16 in advance and tightening with the nut 19. Are combined. Although not specifically illustrated, the channel steel 16 is fastened to the bundle material 9 by bolting or the like using flange portions on both sides thereof.

FIG. 5 also shows that the film fixing material 10 is transported to the site as a unit material whose length is cut to about 4 m due to restrictions on road transportation and the like. When the bonding material 10 is overlapped on the upper surface of the channel steel 16 and integrally bonded, a joint portion for connecting the membrane fixing material 10 having a unit length in the longitudinal direction in series is formed by first using a plurality of connecting rods 20. The center lines of the film fixing members 10 are positioned to ensure continuity of the film fixing grooves 10a. Further, a structure is shown in which the upper surface of the joint portion 21 in which the film fixing members 10 of the unit length are successively butted in the longitudinal direction is covered with a drainage cover 22 and fixed with screws 23 to perform a rain finishing process.

Assuming the above configuration, the rope-shaped edges on both side edges of the film material 5 are aligned with the lower end position of the film fastening groove 10a of the film fastening material 10 as shown in FIG.
The roll body 5 ′ of the film material 5 is rotatably supported by a support 26. Then, the pulling ropes 24 fixed to the ends of the rope-shaped edges are respectively passed through the respective membrane fixing grooves 10a, the guide sheave 25 at the roof top is U-turned, and the other end is wound around the winch 27 below the roof. The winch 27 is driven to sequentially pull up the film material 5, the rope-like edge is supported over the entire length of the film fixing groove 10 a, and the film material 5 is stretched approximately between the left and right film fixing materials 10 a. Keep it in a state.

The upper end of the film material 5 pulled up as described above is
Roof top outer ring 12 or top inner ring 1
In the case where it is parallel to 4, it is directly fixed to the roof base structural member using a flat bar. On the other hand, as illustrated in FIG. 1, since the film fastening material 10 is arranged in parallel with the inclination direction (flow direction) of the roof, an oblique portion generated by crossing the so-called descending ridge 10 ′ is oblique. A film fixing material 10 is further arranged along the film edge, and the film fixing material 10
Is fixed directly to the roof foundation structural member, and the oblique membrane end is passed through the membrane fastening groove to be supported.

Next, as shown in FIG. 6, a rope-like edge 26 is formed in advance in the longitudinal direction at about the middle position in the width direction of the same film material 5 as well. Then, the film tension member 25, which can be firmly supported through the rope-shaped edge 26 at the intermediate position, and in which the film material 5 has one film fixing groove 25a having an upward C-shaped cross section having a slit that can be pulled out in the upward direction, The rope-like edge 26 at the intermediate position
Through the groove 25a. This film tension member 25
In addition to the case where a plurality of the ropes 26 are arranged so as to extend over the entire length of the rope-shaped edge 26 at the intermediate position, a plurality of the ropes 26 may be arranged at intervals of about 2 m, for example.

As shown in FIGS. 4 and 6, the film tension member 25 also has a T-shaped groove 25b in the center longitudinal direction on the lower surface thereof.
Are formed. The pull-in bolt 27 passing through the head side into the T-shaped groove 25b is inserted into, for example,
1 is passed downward through a bolt hole provided in a channel steel 28 as a stiffener previously fixed to the upper surface of the flange of the vertical member 11a, and a nut 29 is screwed from below and tightened.
In this manner, the pull-in bolt 27 is pulled downward, and thus the film tension member 25 is pulled down. As described above, the film material whose both side edges are supported at a constant height by the film fixing grooves 10a of the left and right film fixing materials 10 is provided. 5 is pulled down, a moderate amount of tension is introduced into the membrane material 5, and the pull-in bolt 27
Is fixed in that position.

Hereinafter, the same procedure is repeatedly performed between the film fastening members 10 and 10 of the roof frame to complete the roofing with the film material.

[0021]

According to the membrane mounting structure and the membrane mounting method for a large span donut-shaped membrane roof according to the first and second aspects of the present invention, a roof with a large span is roofed with a membrane material. In addition, it can be implemented with good workability, safely and inexpensively in a short construction period, and the membrane material can be securely and firmly attached to the foundation of the roof frame with appropriate tension, and later maintenance is also possible. It can be implemented with an easy structure.

[Brief description of the drawings]

FIG. 1 is a partially omitted plan view of a large span donut-shaped membrane roof according to the present invention.

FIG. 2 is a sectional view of a roof frame.

FIG. 3 is a cross-sectional view showing a structure for attaching a film material.

FIG. 4 is a plan view of the structure.

FIG. 5 is a perspective view showing an attachment structure on both side edges of a film material.

FIG. 6 is a perspective view showing a tensile structure at the center of the film material.

FIG. 7 is a perspective view showing a procedure for attaching both side edges of the film material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tension ring 2 Compression ring 3 Storage space 4 Mountain of storage 5 Membrane material 11, 13 Roof (roof base structural member) 6 Rope-like edge (rope) on both side edges of membrane material 10a Membrane support groove 10 Membrane fastening material 26 Rope edge 25a at membrane intermediate position 25a Membrane fixing groove 25 Membrane puller 27 Pull-in bolt

 ──────────────────────────────────────────────────続 き Continued on the front page (71) Applicant 000174943 Mitsui Construction Co., Ltd. 1-3-2 Otemachi, Chiyoda-ku, Tokyo (72) Inventor Noboru No. 4-33 Komachi, Naka-ku, Hiroshima-shi, Hiroshima Chugoku Electric Power Stock In-house (72) Inventor Sumi Yuko 4-33, Komachi, Naka-ku, Hiroshima-shi, Hiroshima Chugoku Electric Power Co., Inc. (72) Inventor Akifumi Nakashita 4-33, Komachi, Naka-ku, Hiroshima-shi, Hiroshima Chugoku Electric Power Co., Inc. ( 72) Inventor Eiji Matsui 10-10 Hashimoto-cho, Naka-ku, Hiroshima City, Hiroshima Prefecture Inside the Takenaka Corporation, Hiroshima City (72) Inventor Hitoshi Shimizu 10-10 Hashimoto-cho, Naka-ku, Hiroshima City, Hiroshima Prefecture Takenaka Corporation In-store in Hiroshima City (72) Inventor Hiroshi Une 10-10 Hashimotocho, Naka-ku, Hiroshima-shi, Hiroshima In-store in Hiroshima City Takenaka Corporation (72) Inventor Taku Hirai 8-21-1, Ginza, Chuo-ku, Tokyo No. Company Takenaka Civil Engineering (72) Inventor Hirokuni Tamura 8-21-1, Ginza, Chuo-ku, Tokyo Stock Company Civil Engineering Takenaka (72) Inventor Masatoshi Kato 1-1-1, Nakase, Mihama-ku, Chiba-shi Construction Co., Ltd.Makuhari Office (72) Inventor Toshio Shibata 1-9-1, Nakase, Mihama-ku, Chiba-shi, Chiba Mitsui Construction Co., Ltd. No. 1 Mitsui Construction Co., Ltd. Makuhari Office F-term (reference) 2E141 AA02 BB00 CC00 DD02 EE22 EE23 EE25 EE33 HH01

Claims (2)

[Claims] 1. A tension ring is disposed on an outer peripheral edge, a compression ring is disposed on an inner peripheral edge, a portion between the tension ring and the compression ring is a storage space, and a cross-sectional shape of the roof between the tension ring and the compression ring is substantially equal. A membrane mounting structure of a membrane roof that is formed in a mountain shape and that is continuous with the circumferential direction and that is a doughnut-shaped roof, and that is made up of a membrane material, is supported by rope-shaped edges on both side edges of the membrane material, which will be described later. And a film material having a C-shaped cross-section film fixing groove formed on both sides, which can be pulled out in the horizontal direction, is arranged in parallel with a fixed interval in the inclination direction of the roof, The interval between the rope-shaped edges provided on both side edges thereof is formed to be substantially the same width as the interval between the film fastening members, and is formed in a long strip shape in the inclination direction of the roof. The rope-shaped edges of both side edges are supported by passing through the film fixing grooves of the film fixing material, and the rope-shaped edges are provided in the longitudinal direction also at about the middle position in the width direction of the film material. A membrane pulling member which can be supported through the rope-shaped edge at the intermediate position and has a membrane fastening groove having an upward C-shaped cross section from which the membrane material can be pulled out in an upward direction is disposed in a slope direction of the roof; The rope-shaped edge at the position is supported by passing through a film fastening groove having an upward C-shaped cross section of the film tension member, and the film tension member is pulled downward to introduce tension into the film member and to be fixed. A large-span donut-shaped membrane roof membrane mounting structure. 2. A tension ring is disposed on an outer peripheral edge, and a compression ring is disposed on an inner peripheral edge. A portion between the tension ring and the compression ring is a storage space, and a roof cross-sectional shape between the tension ring and the compression ring is substantially equal. This is a method of attaching a membrane material to a roof having a doughnut-shaped roof, which is formed in a mountain shape and has a circumferentially continuous plane formed in a circumferential direction. The membrane material is supported through rope-shaped edges on both side edges of the membrane material, which will be described later. The film material can be pulled out in the horizontal direction, and a film fixing material with a C-shaped cross-section groove formed on both sides is arranged in parallel with a fixed interval in the inclination direction of the roof. The gap between the rope-shaped edges provided on both side edges thereof is formed to have a width substantially equal to the gap between the film fastening members, and is formed in a long strip shape in the inclination direction of the roof to form a roll. The rope-shaped edges on both side edges of the membrane material are aligned with the lower end position of the membrane fastening groove of the membrane fastening material, and the traction rope fastened to the tip of the rope-shaped edge is inserted into each membrane fastening groove. The guide sheave at the top of the roof is made a U-turn, and the other end is wrapped around the winch, and the winch is driven to pull up the membrane material.
The rope-shaped edge is supported over the entire length of the membrane fixing groove. A rope-shaped edge is provided in advance in a longitudinal direction also at about an intermediate position in the width direction of the film material, and is supported through the rope-shaped edge at the intermediate position. And a film material having a film fixing groove having an upward C-shaped cross section which can be drawn out in an upward direction. The film fixing material is supported by the film fixing groove through an intermediate rope-like edge in the film fixing groove. The method of attaching a membrane to a large span donut-shaped membrane roof, characterized in that the membrane is pulled downward to introduce tension into the membrane and fix it.