JP2000248780A - Air roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air roof easy and inexpensive to install at a necessary outdoor position such as a construction working site for reliable rain avoidance. SOLUTION: An air roof 4 has a balloon-structure roof mainbody 8 mounted with a roof top plate 6 on the upper face of a disc-like extending diaphragm 5 formed in an approximately horizontal plane so as to expand into a doom shape with the introduction of air and mounted with a roof bottom plate 7 on the lower face of the diaphragm 5 so as to expand into a flat dish shape with the introduction of air to hold itself in a horizontal shape and a column- structure anchor member 9 for supporting and fixing the roof mainbody 8 at its outer periphery points at a required height.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air roof used as a temporary roof or a permanent roof to prevent rain at a necessary place outdoors.

[0002]

2. Description of the Related Art When constructing an underground tank for storing a low-temperature liquefied gas such as LNG (liquefied natural gas), an underground space having a required volume is formed by digging the ground, and a bottom portion is formed in the underground space. Build a reinforced concrete tank body with side walls, then assemble a dome-shaped steel roof at the bottom of the tank body, and then pressurize air between the steel roof and the bottom of the tank body. The steel roof is floated by air pressure by being introduced, and the steel roof is connected to the upper end of the side wall of the tank body.

[0003]

However, during the construction of such an underground tank, no special measures were taken to avoid rainfall in the underground space where the work was to be carried out. However, there was a problem that the work could not be resumed unless the rainwater accumulated in the underground space was pumped up to the ground even if it was sunny the next day.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides an air roof that can be easily and inexpensively installed at a required outdoor place such as a construction work site and can reliably avoid rain. It is intended to provide.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a roof top is mounted on an upper surface of a diaphragm extending substantially in a horizontal plane and extending in a disk shape so as to expand in a dome shape by introducing air, and air is provided on a lower surface of the diaphragm. It is characterized by comprising a roof body having a balloon structure mounted with a roof bottom so as to be able to self-hold a horizontal shape by expanding into a flat plate shape by introduction, and an anchor member for fixing a plurality of outer peripheral portions of the roof body. An air roof.

Therefore, according to the present invention, a plurality of outer peripheral portions of the roof main body are fixed by the anchor member, and air is introduced between the roof top plate and the diaphragm inside the roof main body and between the diaphragm and the roof bottom plate. When the roof top board is inflated in a dome shape and the roof bottom board is inflated in a flat plate shape, an air roof is installed as a temporary roof or a permanent roof for avoiding rain at a necessary place outdoors.

[0007] In the air roof installed in this manner, the roof bottom plate is inflated into a flat plate shape so as to hold itself in a horizontal shape, so that a rigid frame or the like is not assembled to the roof body. The overall shape of the roof body is self-maintained satisfactorily without bending downward, and the installation can be completed with only a very simple work of introducing air to the roof body fixed with the anchor member and inflating it. It becomes possible.

Further, since the air roof can be constituted only by the roof main body having the balloon structure and the plurality of anchor members, the equipment cost is extremely low as compared with the case where various members are joined to assemble a conventional temporary or permanent roof. Can be suppressed.

Further, since the roof top swells in a dome shape to allow rainwater to flow down satisfactorily, problems such as accumulation of rainwater on the roof top can be avoided beforehand. Moreover, since the overall shape of the roof body forms a wing shape when viewed from the side, resistance in the case where a cross wind is blown is small, and rather, the generation of lift which lifts the roof body is promoted. It is avoided that a bending deformation occurs downward.

In the present invention, the space between the roof top and the diaphragm inside the roof main body and the space between the diaphragm and the roof bottom plate are divided into a plurality of air chambers, respectively, and the air chambers communicate with each other. Is preferred.

In this way, since each air chamber has a function of self-holding its shape, the ability to self-hold the entire shape of the roof main body is greatly enhanced.

Further, in such a case, it is preferable to lay a wire along the lane marking of the air chamber so as to suppress unnecessarily bulging in the roof bottom of the roof body. When the bottom plate expands in a flat dish shape, the ability to hold the horizontal shape by itself is enhanced, and the bending deformation of the roof main body is further suppressed.

[0013]

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

FIGS. 1 to 3 show an embodiment of the present invention. In this embodiment, an underground tank is used as a temporary roof at a work site for constructing the tank.

That is, in the state shown in FIG. 1, an underground space 1 formed by digging the ground is used as a work site, and a dome-shaped steel roof 3 is mounted on the bottom of a tank body 2 of a reinforced concrete structure constructed in the underground space 1. The assembled state is shown, and an upper opening of the underground space 1 is covered with an air roof 4 at a ground level.

In the air roof 4, a roof top 6 is mounted on the upper surface of a diaphragm 5 extending substantially in a horizontal plane and extending in a disk shape so as to expand in a dome shape by introducing air, and the lower surface of the diaphragm 5 is introduced by air. A roof body 8 having a balloon structure in which a roof bottom plate 7 is mounted so as to be able to self-hold a horizontal shape by inflating into a flat plate shape, and a column structure for supporting and fixing a plurality of outer peripheral portions of the roof body 8 at a required height Anchor member 9
It is comprised including.

As shown in FIG. 2, between the roof roof 6 and the diaphragm 5 inside the roof main body 8 and between the diaphragm 5 and the roof bottom plate 7, partition lines arranged in a spider web shape (described later). A plurality of air chambers 10 are defined by a wire 13 (corresponding to a chain line in the drawing), and the air chambers 10 are connected to each other through a ventilation port (not shown) so that air can enter and exit. It has become.

In the example shown in the figure, a blower 11 installed on the ground is connected to a predetermined air chamber 10 between the roof roof 6 and the diaphragm 5 via an air introduction pipe 12. Air is introduced by the device 11 so that the entire roof body 8 can be inflated.

Further, the roof bottom plate 7 of the roof body 8 has
Wires 13 are laid in a spider web shape along the lane markings of the air chamber 10 so that bulging more than necessary can be suppressed, and these wires 13 are laid integrally with the roof bottom panel 7. The wires 13 extending in the radial direction are fixed to the tops of the anchor members 9 and supported as they are.

At a required position of the roof body 8, a construction opening 14 corresponding to one part of the air chamber 10 is opened through the roof roof 6, the diaphragm 5 and the roof bottom 7. The construction parts of the steel roof 3 can be carried into the bottom of the tank body 2 through the construction opening 14.

Incidentally, it is a matter of course that the construction opening 14 is appropriately covered and covered with the waterproof sheet 15 or the like at the time of rainfall or the like.

Thus, a plurality of outer peripheral portions of the roof main body 8 are fixed by the anchor members 9, and between the roof roof 6 and the diaphragm 5 inside the roof main body 8 and between the diaphragm 5 and the roof bottom plate 7. Air is introduced by the blower 11 and the roof roof 6
When the roof is inflated into a dome shape and the roof bottom plate 7 is inflated into a flat plate shape, the air roof 4 is installed as a temporary roof for avoiding rain at a work site for constructing an underground tank.

In the air roof 4 installed in this manner, the roof bottom plate 7 expands like a flat plate so as to hold the horizontal shape by itself, so that a rigid frame or the like is not assembled to the roof body 8. However, the entire shape of the roof main body 8 is satisfactorily self-maintained without causing downward bending deformation, and air is introduced into the roof main body 8 fixed by the anchor member 9 to inflate the roof main body 8. The installation can be completed.

In particular, in this embodiment, the space between the roof roof 6 and the diaphragm 5 inside the roof body 8 and the diaphragm 5 and the roof bottom plate 7
Are divided into a plurality of air chambers 10 so that each air chamber 1
Since each of the air chambers 10 has a function of self-holding the shape of each of the air chambers 10,
The ability to self-hold the entire shape of the roof body 8 is greatly enhanced, and furthermore, the wires 13 are arranged along the lane markings of the air chamber 10 so that the roof bottom 7 of the roof body 8 can be prevented from unnecessarily bulging. By laying, the roof bottom
The ability to self-hold the horizontal shape when the swells into a flat dish shape is enhanced, and the bending deformation of the roof main body 8 is further suppressed.

Further, since the air roof 4 can be constituted only by the roof body 8 having a balloon structure and the plurality of anchor members 9, the equipment cost is extremely low as compared with the case where a conventional temporary roof is assembled by joining various members. Can be suppressed.

Furthermore, since the roof top 6 is swelled in a dome shape to allow rainwater to flow down satisfactorily, it is possible to prevent a problem that rainwater accumulates on the roof top 6 beforehand. In addition, since the overall shape of the roof body 8 forms a wing shape when viewed from the side, resistance in a case where a cross wind is blown is reduced, and a lift force such as lifting the roof body 8 is generated. Is prevented from bending downward.

Therefore, according to the above embodiment, a temporary roof can be easily and inexpensively installed as a temporary roof above the underground space 1 for constructing the underground tank, and it is possible to reliably avoid rain. This can prevent delays such as delaying the construction period due to the interruption of work, and the inability to resume work without pumping rainwater collected in the underground space 1 to the ground even if it is sunny the next day, and delay work. It is possible to significantly shorten the construction period by proceeding according to schedule.

It should be noted that the air roof of the present invention is not limited to the above-described embodiment, and in the above-described embodiment, the case where the air roof is used as a temporary roof at a work site for constructing an underground tank is described as an example. However, it can be used as a temporary roof to avoid rain on other various construction work sites, exhibition venues such as outdoor exhibitions, playgrounds, etc., and a permanent roof that can be installed easily and inexpensively It is also possible to use the anchor member as long as it can fix a plurality of outer peripheral portions of the roof main body. The anchor member does not necessarily have to have a pillar structure. In addition, it deviates from the gist of the present invention. Of course, various changes can be made within a range not to be performed.

[0029]

According to the air roof of the present invention described above,
Since it can be easily and inexpensively installed at the required place outdoors and can reliably avoid rain, for example, when the required place is a construction work site, heavy rain interrupts construction and delays the construction period Can be avoided and work can not be resumed without removing the rainwater accumulated at the work site, etc., and work can be carried out on schedule without delay and the construction period can be significantly shortened, In addition, when the required place is an event hall such as an exhibition, a game hall, or the like, there is an excellent effect that the event, the game, and the like can be performed without delaying in the rain.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an example of an embodiment for implementing the present invention.

FIG. 2 is a view in the direction of arrows II-II in FIG.

FIG. 3 is an enlarged view in the direction of arrows III-III in FIG. 2;

[Explanation of symbols]

 Reference Signs List 4 air roof 5 diaphragm 6 roof ceiling 7 roof bottom 8 roof body 9 anchor member 10 air chamber 13 wire

Claims (3)

[Claims] 1. A roof top is mounted on an upper surface of a diaphragm extending in a substantially horizontal plane and extending in a disk shape so as to expand in a dome shape by introducing air, and a lower plate of the diaphragm expands in a flat plate shape by introducing air to a horizontal plate. An air roof, comprising: a roof body having a balloon structure to which a roof bottom plate is mounted so as to be able to hold its shape, and an anchor member for fixing a plurality of outer peripheral portions of the roof body. 2. A method according to claim 1, wherein a plurality of air chambers are defined between the roof roof and the diaphragm inside the roof body and between the diaphragm and the roof bottom plate, and the respective air chambers are communicated with each other. The air roof according to claim 1, wherein 3. The air roof according to claim 2, wherein a wire is laid along a division line of the air chamber so as to suppress unnecessarily swelling on a roof bottom plate of the roof body.