JP2016132888A - Temporary roof structure of tsunami evacuation tower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-priced temporary roof structure of a tsunami evacuation tower that comprises a small number of members, may be stored readily in a small space at normal times, is light-weight and easy to handle, may be set up readily by hands in a short period of time, and may be set up only by evacuees from a tsunami.SOLUTION: A temporary roof structure of a tsunami evacuation tower includes an edge part support post 4 provided near each of fall prevention fences 3A that face each other on both sides of a central axial line of a roof floor 2, as seen in a planar view, and a water repellent cloth 5 fitted at a crown part of the edge part support post 4 from above and connected to the fall prevention fence 3B with a cord-like body at a plurality of locations on right and left edge sides 5a orthogonal to the central axial line. The edge part support post 4 has a height higher than the fall prevention fence 3, has a support part for having the support post body stand by itself, and is connected to the fall prevention fence near the support post with a cord-like body 7, at a top part or an intermediate part. All members that comprises the temporary roof structure is installed on a floor of the roof floor without being fixed on a foundation.SELECTED DRAWING: Figure 2

Description

  In the event of a tsunami, evacuees who have evacuated to the rooftop of a tsunami evacuation tower built higher than the tsunami's expected height will be able to withstand direct sunlight and rain before being rescued. The present invention relates to a temporary roof structure of a tsunami evacuation tower that is temporarily installed using a fall-preventing fence that is permanently installed.

When a tsunami refugee waits for rescue on the roof of the tsunami evacuation tower, a temporary evacuation device that is not exposed to cold wind, rain, snowstorm, etc. has a house structure (see FIG. 4 of Patent Document 1). .
This evacuation device is a temporary house structure in which a protective standing plate made of aluminum plate or the like is attached to the inner side surface of a handrail around the rooftop as a wall, and a protective top plate is attached to the protective standing plate attached to the handrail. Evacuation house). A large number of protective stand plates and protective top plates are prepared according to the length of the handrail around the roof.
The protective standing plate is stored in a stacked state using the upper space of the stair railing surrounding the roof opening for the staircase, and the plurality of protective top plates are laid side by side at a position near the roof rail Store in.
The guard stand is attached to a handrail with another fastening member for forming a gap (protective stand plate insertion space) with the handrail, and is inserted into the gap between the handrail and the fastening tool from above. In this way, attach it to the handrail around the roof.
The protective top plate has an insertion leg that is tilted when stowed, and when installed, raise the insertion leg and insert it into the insertion hole provided on the upper end surface of the protective stand plate. And attach it to the top edge of the protective stand.

JP2013-127193A

Patent Document 1 is a temporary house structure that uses a protective standing plate that is attached to a handrail around the rooftop floor and serves as a wall, and a protective top plate that is attached to the protective standing plate and serves as a roof. In addition to direct sunlight and rain, However, the entire rooftop floor is a temporary house and requires a large amount of members. In addition, it seems structurally difficult to cover the entire large rooftop floor with a protective top plate with both ends attached to a protective standing plate attached to a handrail. For example, it is necessary to install a column in the center of the rooftop floor. there is a possibility. Moreover, since it is necessary to attach a fastening tool to the whole handrail, the structure of the handrail itself becomes complicated.
Further, since a protective stand plate and a protective top plate are not used in normal times when there is no disaster such as a tsunami or flood, it is difficult to secure a storage place because a large amount of those members must be stored.
In addition, it is quite difficult to attach a protective stand plate to the handrail around the roof and attach a protective top plate to the protective stand plate to make the roof. There is also a large number of parts, so it seems that it will take a considerable amount of time to install, and it is not easy to build with tsunami evacuees alone.
In addition, since a large amount of protective standing plates and protective top plates are required, the cost is high.

  The present invention has been made to solve the above-described problems, and can be configured with a low number of members and inexpensive members, a storage space that is not used normally is small, can be easily stored, and is light in weight. It is intended to provide a temporary roof structure of a tsunami evacuation tower that is easy to handle, can be installed manually and in a short time, and can be installed only by tsunami refugees.

The invention of claim 1 that solves the above-mentioned problem is that the rooftop is designed so that evacuees who have evacuated to the rooftop floor of the tsunami evacuation tower can overcome direct sunlight and rain before being rescued. A temporary roof structure of a tsunami evacuation tower that is temporarily installed using fall prevention fences permanently installed around the floor,
The temporary roof structure is provided with an end column provided in the vicinity of an opposing fall-preventing fence on the central axis L in plan view of the rooftop floor, and is attached to the top of the end column from above, and the central axis A water repellent cloth connected to the fall-preventing fence with a cable-like body at a plurality of locations on the left and right edges in a direction perpendicular to
The end column is higher than the height of the fall-preventing fence, and has a support part that allows the pillar body to stand by weight or a protruding leg at the lower part, and the upper or middle part is a cord-like body on the fall-preventing fence near the post. All the members that are connected and constitute the temporary roof structure are installed without being fixed to the floor of the rooftop floor.

  In the temporary roof structure of the tsunami evacuation tower according to claim 1, a middle column having a support part for supporting the column main body with a weight or a projecting leg at a lower portion is provided in the middle of the opposed end column. An intermediate portion of the water-repellent cloth is attached to the top portion of the intermediate strut from above.

  Claim 3 is the temporary roof structure of the tsunami evacuation tower according to claim 2, wherein the end portions of the water-repellent cloth at the intermediate positions of the intermediate struts and the end struts on both sides are below the fall prevention fence. The drainage valley part which goes to the said edge part is formed in the said water-repellent cloth, and is connected by the said cord-like body, It is characterized by the above-mentioned.

  Claim 4 is the temporary roof structure of the tsunami evacuation tower according to any one of claims 1 to 3, wherein the support portion is configured such that a lower end portion of the pipe-like column main body is externally inserted or fitted into the upper surface of the bottom plate. A resin-made hollow body having a projecting leg in which an insertable short pipe is erected and a through-hole having an inner diameter into which both the short pipe of the projecting leg and the lower end of the column main body can be fitted and inserted. It is characterized by comprising a weight member having a hole with an opening / closing lid into which a fluid or sandy body can be injected.

  Claim 5 is the temporary roof structure of the tsunami evacuation tower according to any one of claims 1 to 4, wherein the end column is configured such that a column main body can be inserted into a lower pipe and a lower end portion of the lower pipe, and the insertion length. A small-diameter upper pipe having an outer peripheral surface that defines a flange portion, and has a small-diameter rod portion that can be inserted into a mounting hole provided in a water-repellent cloth at the top of the upper pipe, It has a cable-shaped body latching | locking part which can lock the said cable-shaped body for connecting a position below a top part with a fall prevention fence, It is characterized by the above-mentioned.

The members constituting the temporary roof structure of the invention of claim 1 are two end struts provided in the vicinity of the opposing fall-preventing fence on the central axis L of the roof floor, and water repellent attached to the tops of both end struts. It is a cord-like body for connecting the cloth, the end column to the fall-preventing fence, and a cord-like body for connecting the left and right edges of the water repellent cloth to the fall-preventing fence, and the number of necessary members is extremely Less. Moreover, those members are inexpensive.
Since the two end struts and cords are not bulky and the water-repellent cloth can be folded, the storage space during normal use is narrow. And since those weight is light, there is no difficulty in storing and it can store easily.

Since the two end struts are self-supporting by the support part, it is easy to stand up, and a water-repellent cloth is attached to the top of the two end struts, and the end struts are connected to the fall prevention fence with a cord-like body, The temporary roof structure can be installed by connecting the left and right ends of the water repellent cloth to the fall prevention fence with a cable-like body, so the installation work is extremely simple and can be done in a short time. it can. And if it is such installation work, it can be installed only by tsunami evacuees, it can be installed by only two people, and it can respond to the situation at the time of tsunami occurrence that can not call the installation contractor As such, it is extremely effective.
In addition, since the temporary roof structure can be installed by hand, it can be installed even in the event of an emergency without tools.

In addition, the end struts are self-supporting and are connected to the fall prevention fence with a cable-like body to prevent falling, and the edge of the water repellent cloth, which is a roofing material, is connected to the fall prevention fence with a cable-like body In order to stabilize the roof material, an anchor or the like is not required for the installation of the roof structure, and it is extremely suitable as a temporary roof structure to be installed on the roof floor of the tsunami evacuation tower.
The area of the roof surface (roof area) is close to the entire area surrounded by the fall prevention fence on the rooftop floor, and the rooftop floor can be used effectively as a tsunami evacuation site and can be used from the outside of the rooftop Even if there is no space for installing the roof structure, the roof structure can be installed.

  In the case where the distance between the opposing fall prevention fences on the central axis L of the roof floor is wide, this can be dealt with by providing an intermediate column as in claim 2. Even in this case, the effect of the invention of claim 1 is not impaired.

  In the case of providing the intermediate strut, the drainage trough is provided at each intermediate position between the intermediate strut and the end struts on both sides of the water repellent cloth, as in claim 3. Can prevent rainwater from collecting. Thereby, there is no possibility that the roof surface may collapse due to the weight of rainwater, or the end column and the intermediate column may fall down.

  If the support part for allowing the end column or the intermediate column to stand on its own is constituted by the overhanging leg and the weight member as in the fourth aspect, the column can be easily and stably provided with a structure.

  According to the end strut of claim 5, it is possible to easily assemble an end strut that is sufficiently higher than the height of a person without using a tool, and to connect the end strut to the fall prevention fence with a cord-like body. In addition, the force acting laterally on the end column with the weight of the water repellent cloth can be firmly received via the cord-like body.

It is a top view which shows the state which installed the temporary roof structure of the tsunami evacuation tower of one Example of this invention in the roof floor of the tsunami evacuation tower. (A) is AA sectional drawing of the principal part of FIG. 1, (b) is a front view of the roof floor of the tsunami refuge tower shown in the state which has not installed the temporary roof structure. It is BB sectional drawing of the principal part of FIG. 1 (however, the short side part of a fall prevention fence is abbreviate | omitting illustration). It is a front view of the edge part support | pillar used for the said temporary roof structure. (A) is the figure which showed only the lower pipe in the edge part support | pillar of FIG. 4, (b) is a right view of (b). (A) is the figure which showed only the upper pipe in the edge part support | pillar of FIG. 4, (b) is a right view of (a). It is a disassembled perspective view of the support part in the edge part support | pillar of FIG. It is a figure explaining the rough beginning of the operation | work at the time of installing the temporary roof structure of an Example, and the top view which has arrange | positioned the water repellent cloth of the state folded in the water repellent cloth width direction on the roof floor of a tsunami refuge tower It is. 8A is a diagram for explaining a situation where the work of installing the temporary roof structure proceeds from the stage of FIG. 8 and one end of the water-repellent cloth is attached to the top of the end column, and FIG. ) Is a diagram for explaining a state in which the end column is raised and set at a predetermined position and the upper portion is connected to the handrail by a belt with a buckle after the work of (). It is the enlarged view which expanded and showed the vicinity of the edge part support | pillar of the left side of FIG. It is a figure which shows the other Example of the aspect which connects the upper part of an edge part support | pillar to a fall prevention fence with a cord-like object, and is a figure equivalent to FIG. It is a figure explaining the other example about the arrangement | positioning aspect of the support | pillar (end part support | pillar or intermediate part support | pillar) which supports a water repellent cloth.

  Hereinafter, the form for implementing the temporary roof structure of the tsunami evacuation tower of this invention is demonstrated with reference to drawings.

FIG. 1 is a plan view showing a state in which a temporary roof structure 1 according to an embodiment of the present invention is installed on a roof floor 2 of a tsunami evacuation tower. FIG. 2 (a) is a cross-sectional view taken along line AA in FIG. ) Is a front view of the roof floor of the tsunami evacuation tower shown with no temporary roof structure 1 installed, and FIG. 3 is a cross-sectional view taken along the line BB of FIG.
In FIG. 1 to FIG. 3, the description of the structure of the tsunami evacuation tower itself is omitted, but a square steel pipe column made of, for example, a square steel pipe and a beam made of, for example, an H-shaped steel constitute a multi-story tower framework structure, There is a staircase that goes up to the rooftop floor 2. Although illustration of the staircase is omitted, in this embodiment, it is provided on the outer surface of the frame structure. Moreover, although the lighting pillar is installed in the rooftop floor 2, illustration was abbreviate | omitted.
This temporary roof structure 1 is placed around the rooftop floor 2 so that evacuees who have evacuated to the rooftop floor 2 of the tsunami evacuation tower during the tsunami can resist direct sunlight and rain until they are rescued. It is a temporary roof structure that is installed temporarily using a permanent fall prevention fence.

The roof floor 2 of the tsunami evacuation tower of the embodiment is rectangular in plan view. In the following, the term rooftop floor 2 is used including the meaning of the rooftop floor. The fall prevention fence 3 facing the long side direction (left and right direction in FIG. 1) is denoted by reference numeral 3A, and the fall prevention fence 3 facing the short side direction is denoted by reference numeral 3B. A central axis passing through the center in the short side direction of the rooftop floor 2 is indicated by a symbol L.
The fall prevention fence 3 uses a roof floor portion of a square steel pipe column 9 constituting the framework structure of the tsunami evacuation tower, and a plurality of columns 3 a are erected between the square steel pipe column 9 and the square steel pipe column 9. The upper and lower portions of adjacent columns 3a are connected by horizontal bars 3b and 3c, and the upper and lower horizontal bars 3b and 3c are connected by a plurality of vertical bars 3d.

The roof structure 1 includes end struts 4 that are respectively provided in the vicinity of the opposite fall prevention fence 3A on the central axis L of the rooftop floor 2 and are connected to the fall prevention fence 3A by the ropes 7; A plurality of portions 5a on the left and right sides (left and right in FIG. 3 and up and down in FIG. 1) in the direction perpendicular to the central axis L are attached to the top of the support column 4 in the short side direction with the cord 6 And a water repellent cloth 5 connected to the opposing fall prevention fence 3B to form a roof surface. The water repellent cloth 5 is as light as possible. When the above-described illumination pillar (not shown) interferes with the water-repellent cloth 5, it is preferable to make a notch in the water-repellent cloth 5 at that location.
In this embodiment, an intermediate strut 8 is also provided in the middle of the opposed end struts 4 and supports the intermediate portion of the water repellent cloth 5 at the top. The intermediate column support 8 has substantially the same structure as the end support column 4 as described later.
The said end part support | pillar 4 and the intermediate | middle part support | pillar 8 are higher than the fence height of the fall prevention fence 3 as shown in the figure.
The end struts 4, the intermediate struts 8, and the water repellent cloth 5 are all installed without being fixed to the floor of the rooftop floor. That is, an anchor or the like for fixing the support column or the water repellent cloth is not used, and all members constituting the roof structure 1 are installed without being fixed to the floor of the rooftop floor.
A storage box 20 for storing the water repellent cloth 5, the end column 4, the intermediate column 8, and the cords 6 and 7 is placed.

The water repellent cloth 5 that is a roofing material is made of a water repellent treatment and is as light and flexible as possible. Since the roof material is lightweight, it is easy to install the roof structure, the load received by the columns (end column 4 and intermediate column 8) that support the roof structure is small, and the columns 4 and 8 can be lightweight. .
Further, if the water repellent cloth 5 that is a roof material is flexible, it can be folded and stored as small as possible, the space required for storage can be reduced, and a small storage box 20 can be used.

Detailed structures of the end column 4 and the intermediate column 8 are shown in FIGS. Although the structure of the intermediate | middle part support | pillar 8 may be made into a structure different from the edge part support | pillar 4, the thing of the same structure is used in the Example.
The end column 4 will be described below. The end column 4 includes a lower pipe 11 and a small-diameter upper pipe 12 into which only the lower end can be inserted into the lower pipe 11. 12 has a linear thin rod portion 13 in the illustrated example that can be inserted into a grommet (attachment hole) 5b provided at the end of the water repellent cloth 5. An insertion length (insertion depth) of the upper pipe 12 into the lower pipe 11 is defined by welding and fixing a flange 12a serving as a stopper for the insertion depth to the lower portion of the upper pipe 12.
The small-diameter bar portion 13 may be bent from the upper end of the straight portion and have an inverted L shape. In the case of the straight thin rod portion 13, it is easy to insert into the grommet of the water repellent cloth 5, and in the case of the inverted L-shaped thin rod portion 13, it is difficult to come off from the grommet of the water repellent fabric.
Further, a butterfly bolt 15 is screwed into a female screw portion 11 a provided in the lower pipe 11 to prevent the upper pipe 12 from rotating.
As another means for defining the insertion length of the upper pipe 12 into the lower pipe 11, a through-hole penetrating both the lower pipe 11 and the upper pipe 12 is provided, and a through-hole on the lower pipe 11 side is provided. It is good also as a structure which welds and fixes a nut to an outer surface side, makes an insertion bolt penetrate both through-holes, and is screwed together to the said nut.
The lower pipe 11 and the upper pipe 12 of the embodiment are steel pipes, but aluminum pipes can also be used.

At a position slightly below the top of the upper pipe 12, a ring (cable body locking portion) 14 through which the cord 7 connecting the upper portion of the end column 4 and the fall prevention fence 3 is passed is fixed by welding. However, as will be described later, in the case where the portion of the small-diameter bar portion 13 at the top of the upper pipe 12 and the fall-preventing fence 3 are connected by the cord-like body 7, the ring 14 may not be provided.
The cord 7 connecting the upper portion of the end column 4 and the fall prevention fence 3 and the cord 6 connecting the end 5a of the water repellent cloth 5 to the fall prevention fence 3 are of the same kind. For example, it may be in the form of a rope or a belt. In the case of a belt shape, a belt with a buckle is preferable because the workability of the connecting work is good. Rope and belt are preferably made of synthetic resin.

As shown in the exploded perspective view of FIG. 7, the support portion 16 for self-supporting the column main body 10 of the end column 4 can be externally inserted into the upper surface of the bottom plate 17 a serving as an overhanging portion. A resin-made hollow body having a projecting leg 17 in which a short pipe 17b is fixed upright and a through-hole 18a into which the short pipe 17b of the projecting leg 17 can be fitted, or a fluid such as water or the like It consists of a weight member 18 having an injection hole with a cap capable of injecting a sand-like body such as sand. An injection hole of the injection hole with a cap is indicated by 18b and a cap is indicated by 18c. If a rubber plate is attached to the back surface of the bottom plate 17a, it is suitable for preventing slipping.
In the embodiment, since the lower end of the lower pipe 11 is externally inserted into the short pipe 17b of the overhanging leg 17 (inserted so as to cover the outer surface of the short pipe 17b), the inner diameter of the through hole 18a of the weight member 18 The inner diameter of the lower pipe 11 can be inserted into the lower pipe 11, but the lower end of the lower pipe 11 can be inserted into the short pipe 17b of the overhanging leg 17 (inserted into the short pipe 17b). ), The inner diameter of the through hole 18a of the weight member 18 may be an inner diameter that allows the short pipe 17b of the overhanging leg 17 to be fitted and inserted.
The support portion 4 of the embodiment has a structure in which a weight member 18 is placed on the overhanging leg 17. However, if only one of the overhanging leg 17 or the weighting member 18 can make the end column 4 independent, You may use only one as a support part which makes the support | pillar main body 10 self-support.

The operation | work which installs the above-mentioned roof structure 1 in the rooftop floor 2 is demonstrated.
(1) In FIG. 8, the end support | pillar 4 is each assembled in the state of FIG. 4 in the vicinity (standing position) of the fall prevention fence 3 (3A) which opposes on the center axis line L of the rooftop floor 2. FIG.
A cord-like body 7 that connects the end column 4 to the fall-preventing fence 3 is previously connected to the ring 14 at the top of the end column 4 as shown in FIG. In the embodiment, the cord 7 is a belt with a buckle having a buckle. The buckle is denoted by s. The end column 4 may be laid on the floor in the assembled state of FIG.
The intermediate strut 8 is also assembled in the state shown in FIG. 4, but is placed at a position away from the central axis L as shown in FIG. 8 so as not to disturb the water repellent cloth 5.
(2) The folded water-repellent cloth 5 is placed in the vicinity of the center of the long side direction (left and right direction in FIG. 8) on the central axis L of the rooftop floor 2 and is folded in the long side direction but short side direction It is assumed that it is expanded (in the vertical direction in FIG. 8) (the state in FIG. 8).
(3) Next, the water repellent cloth 5 is spread toward the fall prevention fences 3 on both sides in the long side direction of the rooftop floor 2 as indicated by arrows.

(4) Since the height of the end column 4 of the embodiment is about 2.6 m, which is considerably higher than the height of a person, the end column 4 is inclined as shown in FIG. The narrow rod portion 13 at the top is passed through the grommet 5b at one end of the water repellent cloth 5.
(5) Next, as shown in FIG. 9 (b), the end strut 4 is raised to stand at a predetermined position, and the cord-like body (belt with a buckle) 7 connected to the ring 14 of the end strut 4 in advance. Are connected to the upper horizontal rail 3b in the illustrated example of the fall prevention fence 3. In FIG. 9B, the water repellent cloth 5 is omitted.
As described above, the cord 7 is not connected to the ring 14 of the end column 4 in advance, but the ring 14 of the end column 4 and the fall prevention fence 3 are connected by the cord 7 at this stage. You may connect.
(6) Next, with respect to the end column 4 on the opposite side as well, the end column 4 is raised in the same manner and connected to the fall prevention fence 3 by the cord-like body 7.
(7) Next, the intermediate column support 8 is set at an intermediate position of the central axis L and inserted into a grommet at an intermediate position of the water repellent cloth 5 to support the intermediate portion of the water repellent cloth 5.

(8) Next, the grommet portions at a plurality of positions on the left and right end sides 5a of the water repellent cloth 5 are connected to the left and right fall prevention fences 3B in the direction orthogonal to the central axis L.
In this case, the edge 5a of the water-repellent cloth 5 at each intermediate position between the intermediate column 8 and the end columns 4 on both sides is connected to the horizontal beam 3c below the fall-preventing fence 3B. The edge 5a of the cloth 5 is connected to the horizontal rail 3b at the top of the fall prevention fence 3B, and is directed to the water-repellent cloth 5 at the intermediate position between the intermediate column 8 and the end columns 4 on both sides toward the edge 5a. A drainage trough 5c is formed.
(9) In the embodiment, as shown in FIG. 1, both the resin rope 6 </ b> A and the belt 6 </ b> B with a buckle are used as the cord-like body 6 that connects the edge 5 a of the water repellent cloth 5 to the fall-preventing fence 3. Yes.
A rope 6C made of resin is used as a cord-like body connected to the lower horizontal rail 3c at a location where the drainage valley portion 5c is formed. However, a resin rope or a belt with a buckle can be used at any location.
Through the above-described operation, both ends and the middle portion in the central axial direction of the water repellent cloth 5 are supported by the end support pillar 4 and the intermediate support pillar 8, respectively, and the left and right end sides 5a of the water repellent cloth 5 are prevented from falling. The roof structure 1 shown in FIGS. 1 and 2 (a) is completed. FIG. 10 is an enlarged view of the vicinity of the left end column 4 in FIG.

FIG. 11 shows another example of means for connecting the end column 4 to the fall prevention fence 3 with a cord-like body.
In this embodiment, the ring 14 is not used, but a ring 7a ′ is formed at the tip of the rope 7 ′, and this ring 7a ′ is hooked on the small-diameter bar 13 at the top of the end column 4 to prevent the other end from falling. Connected to (attached to) the upper horizontal rail 3b of the fence 3.

In the above-described embodiment, the columns (end column 4 and space column 8) that support the water-repellent cloth 5 are three parallel to the long side of the rooftop floor 2, but in FIGS. Various arrangement modes as shown can be adopted.
The figure (A) shows the case where there are two pillars parallel to the long side of the rooftop floor 2, the figure (B) shows the case of two pieces in the diagonal direction on the rooftop floor, and the figure (C) shows the direction of the diagonal line on the rooftop floor. In the case of three, the same figure (D) is the case of four at the four corners of the rooftop floor, and the same figure (e) is the case of five at the four corners of the rooftop floor and one at the center. (F) is the case of five, four at the center of the four sides of the rooftop floor and one at the center.

  In the end column 4 of the embodiment, the support unit 16 is separate from the column main body 10, but the support column may be integrated with the column main body.

1 Roof structure (temporary roof structure)
2 Rooftop 3 Fall prevention fence 3A (opposite on the central axis L of the rooftop) Fall prevention fence 3B (opposite in the direction orthogonal to the central axis L) Fall prevention fence 3a (of the fall prevention fence) Post 3b (Upper part) ) Horizontal beam 3c (Lower) Horizontal beam 3d Vertical beam 4 End column 5 Water repellent cloth 5a End side 5b Grommet (Mounting hole)
5c Drainage valley part 6 (connecting the edge of the water-repellent cloth to the fall prevention fence) Cable-like body 7 (connecting the end column to the fall-preventing fence) Cable-like body 8 Intermediary column 9 (Framework of the tsunami evacuation tower Square steel pipe column 10 of structure) Column main body 11 Lower pipe 12 Upper pipe 13 Small-diameter bar portion 14 Ring (cord-like body locking portion)
15 Butterfly bolt 16 Supporting part 17 Overhanging leg 17a Bottom plate 17b Short pipe 18 Weight member 18a Through hole 18b Injection hole 18c Cap 20 Storage box L Center axis (passing the center of the short side of the rooftop)

Claims (5)

To prevent evacuees who have evacuated to the rooftop floor of the tsunami evacuation tower during a tsunami from being able to withstand direct sunlight and rain before being rescued, use a fall prevention fence permanently installed around the rooftop floor. The temporary roof structure of the tsunami evacuation tower installed in the temporary construction,
The temporary roof structure is provided with an end column provided in the vicinity of an opposing fall-preventing fence on the central axis L in plan view of the rooftop floor, and is attached to the top of the end column from above, and the central axis A water repellent cloth connected to the fall-preventing fence with a cable-like body at a plurality of locations on the left and right edges in a direction perpendicular to
The end column is higher than the height of the fall-preventing fence, and has a support part that allows the pillar body to stand by weight or a protruding leg at the lower part, and the upper or middle part is a cord-like body on the fall-preventing fence near the post. A temporary roof structure of a tsunami evacuation tower, characterized in that all members connected and constituting a temporary roof structure are installed without being fixed to the floor of the rooftop floor. In the middle of the opposite end struts, there is provided a middle strut having a support part for supporting the main body of the strut by weight or a protruding leg at the lower part, and the middle portion of the water repellent cloth is located on the top of the middle strut from above 2. The temporary roof structure of a tsunami evacuation tower according to claim 1, wherein the temporary roof structure is attached. End portions of the water-repellent cloth at intermediate positions between the intermediate struts and the end struts on both sides are connected to a lower portion of the fall-preventing fence and the cord-like body, and the ends are connected to the water-repellent cloth. 3. The temporary roof structure of a tsunami evacuation tower according to claim 2, wherein a drainage trough toward the side is formed.   The supporting part includes an overhanging leg in which a bottom pipe that can be externally inserted or inserted into the bottom end of the pipe-like column main body is fixed on an upper surface of a bottom plate, and the short pipe and the column main body of the overhanging leg. A hollow body made of a resin having a through-hole with an inner diameter that can be fitted and inserted into any of the lower ends of the body, and a weight member having a hole with an opening and closing lid into which a fluid or sand-like body can be injected. The temporary roof structure of the tsunami evacuation tower according to any one of claims 1 to 3.   The end strut is composed of a lower pipe and a small-diameter upper pipe having a flange on the outer peripheral surface, the lower end of which can be inserted into the lower pipe and defining the insertion length, on the top of the upper pipe. It has a small-diameter bar portion that can be inserted into a mounting hole provided in a water-repellent cloth, and can lock the cord-like body for connecting a position below the top portion of the upper pipe to a fall-preventing fence. The temporary roof structure of the tsunami evacuation tower according to any one of claims 1 to 4, further comprising a cord-like body locking portion.

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