KR20190118022A - Disaster prevention shelter for natural disasters - Google Patents

Abstract

The present invention relates to a disaster prevention shelter for a precaution against natural disaster, which comprises: a plurality of semi-arc frames having a fully curved proximal portion and forming one side of an upper frame; a plurality of lower frames supporting the semi-arc frame; and a connector binding the semi-arc frames to the lower frames to form a cross-sectional surface of the disaster prevention shelter with a combination of the semi-arc frames and the lower frames. Moreover, a pair of the semi-arc frames are bound based on the connector to form a crown portion in a closed structure.

Description

Disaster Prevention Shelter for Natural Disasters {DISASTER PREVENTION SHELTER FOR NATURAL DISASTERS}

The present invention relates to a disaster prevention shelter for natural disaster preparedness, and to a disaster prevention shelter that can be assembled and installed in a house.

In order to minimize casualties due to natural disasters, various natural disaster evacuation-related technologies have been actively developed at home and abroad, but are mainly focused on the information transmission system field, and the lives and safety of residents in the event of actual natural disasters such as evacuation facilities and evacuation devices. The development of products that can protect the company was found to be insufficient. Currently, in Korea, earthquake and landslides are detected in advance to encourage residents to move to pre-designated shelters such as schools, town halls, and government offices. I wear it frequently.

Against this backdrop, it is necessary to develop a self-directed evacuation system that can help the residents practically along with the national control system, and to realize this, earthquakes and There is a need to focus on landslides. One of the self-directed evacuation devices is a disaster shelter that can be assembled and installed in a home to withstand the load of the decay. Korean Patent No. 1635088 discloses a prefabricated simple evacuation device. Disaster shelters for homes should be considered for their usability in storage, transport and assembly, and for their safety to withstand the load of decay. However, in the conventional disaster prevention shelter, when the usability is considered, the skeleton is easily broken in the environment of natural disasters such as landslides, and thus does not satisfy safety. Alternatively, when the conventional disaster prevention shelter is provided with a frame of excellent strength and safety is ensured, there is a problem that the frame frame is too heavy and difficult to assemble, resulting in poor usability.

Accordingly, the present applicant has devised a disaster prevention shelter that can satisfy the trade-off characteristics of usability and safety in the design of the evacuation mechanism for homes.

Korean Patent No. 1635088

The present invention is to provide a disaster prevention shelter that can be stored and easily installed in the home, withstand the load of natural disaster collapse such as earthquake or landslide.

In order to achieve the above object, the present invention, in the disaster shelter for natural disaster preparedness, a half-call frame that is curved proximal part and forms one side of the upper skeleton; A lower frame supporting the half call frame; And a connector for binding the half frame and the lower frame to form a cross-sectional skeleton of the disaster prevention shelter by combining the plurality of half frame and the plurality of lower frames, wherein the half frame includes a pair of the half frame based on the connector. It is characterized in that to form a top end with a closed structure.

Preferably, in the disaster prevention shelter according to the present invention, the cross-sectional skeleton of the disaster prevention shelter formed by combining the half frame and the lower frame may be a horseshoe type.

Preferably, the disaster prevention shelter according to the present invention further includes a reinforcement frame forming a longitudinal gap between the cross-sectional skeleton of the disaster prevention shelter, the reinforcement frame may bind the cross-sectional skeleton of the disaster prevention shelter based on the connector.

Preferably, the lower frame includes a lower side wall frame connected to one end of the half call frame through the connector in a direction perpendicular to the ground; And a lower bottom frame connected to the lower sidewall frame through the connector in a direction parallel to the ground and perpendicular to the lower sidewall frame.

Preferably, the connector is a body portion forming a node of the disaster prevention shelter skeleton; An extension portion may be formed extending from the body portion and inserted into an end portion of the half frame or the lower frame.

Preferably, the connector comprises a three-node connector having three extension parts for use in the cross-sectional skeleton of the disaster prevention shelter located in the front or rear; And a four-node connector having four extension parts for use in the cross-sectional skeleton of the disaster prevention shelter disposed at longitudinal intervals except for the front or rear side of the cross-sectional skeleton of the disaster prevention shelter.

Preferably, the half call frame and the bottom frame may be made of duralumin material, in this case

Preferably, the half arc frame and the lower frame may have a diameter of 39 to 41 mm and a thickness of 2.8 to 3.2 mm.

Preferably, the half arc frame and the lower frame may be a galvanized steel pipe material, in this case, the half arc frame and the lower frame are 38 to 39 mm in diameter and 1.8 to 2.2 mm in thickness.

Preferably, the disaster prevention shelter according to the present invention further comprises a membrane member which is covered on the skeleton of the disaster prevention shelter assembled by a combination of a plurality of the half-frame and a plurality of the lower frame, the membrane member may be a material of geotextile have.

According to the present invention, the two half call frames are closed on the basis of the center of the disaster prevention shelter to form a top end. The top end frame according to the present invention has an advantage in that the load distribution is excellent, the frame deformation is less, and the assembly is easier than the frame constituting the top end in the arc-shaped single frame.

In addition, according to the present invention, the frame forming the frame of the disaster prevention shelter is three kinds of half-frame, the lower side wall frame and the lower floor frame, the connector is a combination of the two kinds can be easily assembled without a separate manual, storage And it has the advantage of excellent convenience of movement.

In addition, according to the present invention by optimizing the member adequacy through the numerical analysis has the advantage of excellent safety by optimizing the diameter and thickness of the frame material (zinc steel pipe, duralumin), the longitudinal spacing of the frame.

1 is a perspective view showing a disaster prevention shelter according to an embodiment of the present invention.
2 shows two types of connectors according to an embodiment of the invention.
3 shows a connector measured view according to an embodiment of the present invention.
4 shows a connector measurement according to another embodiment of the present invention.
FIG. 5 shows a provisional manufacturing of the disaster prevention shelter according to the embodiment of FIG. 1.
FIG. 6 illustrates a three-node connector of a disaster prevention shelter prefabricated according to the embodiment of FIG. 5.
7 illustrates a four-node connector of a disaster prevention shelter prefabricated according to the embodiment of FIG. 5.
8 shows the evaluation of the bending momentum of the duralumin steel pipe member according to the present experimental example.
9 shows the bending momentum evaluation of the galvanized steel pipe member according to the present experimental example.

Hereinafter, with reference to the contents described in the accompanying drawings will be described in detail the present invention. However, the present invention is not limited or limited by the exemplary embodiments. Like reference numerals in the drawings denote members that perform substantially the same function.

The objects and effects of the present invention may be naturally understood or more apparent from the following description, and the objects and effects of the present invention are not limited only by the following description. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 shows a perspective view of a disaster prevention shelter 1 according to an embodiment of the present invention. Referring to FIG. 1, the disaster prevention shelter 1 may include a half call frame 131, a lower frame 133, connectors 135 and 136, a reinforcing frame 134, and a membrane member 30. In the disaster prevention shelter 1 according to the present embodiment, the cross-sectional skeletons 13 and 15 formed by combining the half call frame 131 and the lower frame 133 form a horseshoe shape.

The disaster prevention shelter 1 according to the present embodiment utilizes a prefabricated frame system 10 that expands high-strength steel pipes that can withstand housing collapse and falling objects, and high-strength fibers that can prevent load distribution and soil inflow in conjunction with the prefabricated frame system 10. It consists of a membrane system 30. The high-strength steel pipe which is the main material of the frame system is disclosed as duralumin, which is a galvanized steel pipe widely used for agricultural facilities and structural materials, and an aluminum alloy used as a structural material for tents and tarps.

Although duralumin is expensive in terms of usability due to its high cost and light weight compared to galvanized steel pipes, duralumin has a disadvantage in that it is not easy to install, dismantle, and move due to its heavier weight than duralumin, but has excellent advantages in terms of economy. Therefore, in the present embodiment, the supply and demand of high-strength material is smooth and excellent in workability during manufacturing, and the galvanized steel pipe and duralumin material were selected in consideration of the user's usability and the safety of the frame 10.

As a high strength fiber that is a main material of the membrane member 30 to be described later, PET Mat, which is a high strength civil fiber, is widely used in civil engineering. In addition, the frame structure was selected as a structurally stable barrel shell structure that can withstand external forces such as house collapse and falling objects due to earthquakes and landslides. The cross-sectional frameworks 13 and 15 of the disaster prevention shelter 1 according to the present embodiment may be designed to have a width of 1.5m, a length of 2.0m, and a height of 1.25m, which is the point that most houses inhabit one or two people per household. It is possible to use two people, but the size is easy to assemble. Note that the disaster prevention shelter 1 according to the present embodiment is intended to be installed in a room, a living room, or the like of a house, and is installed in a prefabricated manner so as to be easily dismantled after a risk is expected. Disaster prevention shelter 1 according to the present embodiment has a structure (10) compatible with the bed to increase usability in homes using ondol and bed. Hereinafter, a detailed configuration of the disaster prevention shelter 1 according to the present embodiment will be described with reference to FIGS. 1 and 2.

The half call frame 131 is curved proximal and forms one side of the upper skeleton. The half call frame 131 is coupled to a pair based on the connectors 135 and 136 to form a top end in a closed structure. The disaster prevention shelter 1 may be understood as a structure in which a plurality of cross-sectional skeletons 13 and 15 are longitudinally coupled. For convenience of description, a cross-sectional skeleton located at the front or rear of the disaster prevention shelter 1 is defined by reference numeral 13, and a cross-sectional skeleton disposed between the front and rear of the disaster prevention shelter 1 is defined by reference numeral 15.

Note that the disaster prevention shelter 1 according to the present embodiment is made of a combination of two half arc frames 131 (a) and 131 (b) having a top end of the upper skeleton. In general, the top end is conventionally composed of a single frame having an arc shape. The upper frame of the arc-shaped single frame has a disadvantage in that the load supporting capacity is not superior to the upper frame in which the half arc frame 131 is coupled with respect to the center of the cross-sectional skeleton 13, and the usability of the assembly component is large and the usability is inferior. . Accordingly, in the disaster prevention shelter 1 according to the present embodiment, a pair of the half call frames 131 (a) and 131 (b) is coupled to the connectors 135 and 136 to form a ligation portion of the membrane member 30 at the top of the center. At the same time, the load is evenly distributed to three groups of the reinforcement frame 134 and the half-arc frames 131 (a) and 131 (b), which will be described later, through the connectors 135 and 136. To be excellent.

The lower frame 133 supports the half call frame 131. The lower frame 133 may include a lower sidewall frame 1331 and a lower bottom frame 1333. The lower sidewall frame 1331 is connected to one end of the half frame 131 through the connectors 135 and 135 in a direction perpendicular to the ground. The lower bottom frame 1333 is connected to the lower sidewall frame 1331 through the connectors 135 and 135 in a direction parallel to the ground and perpendicular to the lower sidewall frame 1331.

The connectors 135 and 136 form the half arc frame 131 and the lower frame 133 to form the cross-sectional skeletons 13 and 15 of the disaster prevention shelter by a combination of the plurality of half arc frames 131 and the plurality of lower frames 133. Unite. 2 shows two connectors 135 and 135 in accordance with an embodiment of the present invention. 3 shows a connector measured view according to an embodiment of the present invention. 4 shows a connector measurement according to another embodiment of the present invention.

The reinforcement frame 134 forms a longitudinal gap between the cross-sectional skeletons 13 and 15 of the disaster prevention shelter 1. The reinforcement frame 134 may be vertically engaged with the half-armor frame 131 at the upper end of the upper frame. In addition, the reinforcement frame 134 may be vertically engaged with the lower frame 133 at the sidewall which is the lower frame.

In this embodiment, the axial length of the reinforcing frame 134 may be formed from 200mm to 500mm. More preferably, the axial length of the reinforcement frame 134 may be 200 mm to 250 mm. The reinforcement frame 134 determines the longitudinal spacing of the disaster prevention shelter 1, which is one of the major design variables related to the load bearing safety of the disaster prevention shelter 1. Selection of the length of the reinforcement frame 134, which is a vertical spacing (Skeleton spacing) reflects the safety test of the numerical analysis according to this experimental example, can be referred to the experimental example to be described later.

2 to 4, the connectors 135 and 136 extend from the body portions 1351 and 1361 and the body portions 1351 and 1361 forming the nodes of the disaster prevention shelter skeleton, and thus the half arc frame 131 or the lower portion. Extensions 1353 and 1363 penetrating the ends of the frame 133 are provided. Ligation means for fixing the membrane member 30 may be provided on the upper surfaces of the connectors 135 and 136 so that the membrane member 30 is overlaid on the framework.

The connectors 135 and 136 may include two kinds of three-node connectors 135 and four-node connectors 136. The three-node connector 135 is used for the cross-sectional skeleton 13 of the disaster prevention shelter located in the front or rear, three extensions 1353 are formed. The four-node connector 136 is used for the cross-sectional skeleton 15 of the disaster prevention shelter disposed at longitudinal intervals except for the front or rear of the cross-sectional skeletons 13 and 15 of the disaster prevention shelter, and the extension 1353 is 4 Dogs are formed.

Considering the half frame 131, the lower frame 133, the reinforcing frame 134, and the connectors 135 and 136 described above, at least three steel pipe frames are provided for each node of the skeleton of the disaster prevention shelter 1. 135, 136) can be confirmed that the binding. In the case of the upper frame, two half arc frames 131 (a) and 131 (b) and one reinforcement frame 134 support the load at the top end. In the case of the side wall frame, one half arc frame 131, one lower side wall frame 1331, and one reinforcing frame 134 support the upper load. In the case of the bottom frame, one lower side wall frame 1331, one lower bottom frame 1333, and one reinforcing frame 134 support the upper load. As a result, the closed structure of the top end formed by the half call frame 131 and the frame formed by the lower frame 133 and the reinforcement frame 134 have a uniform and stable load distribution as compared to the frame formed by the top end with a single arc-shaped frame. It is understood that this is provided as a possible structure.

In the present embodiment, the half call frame 131 and the lower frame 133 are preferably made of duralumin. In this case, it is preferable that the half frame 131 and the lower frame 133 have a diameter of 39 to 41 mm and a thickness of 2.8 to 3.2 mm. As described above, in the disaster prevention shelter 1, the selection of the material, the diameter, the thickness, and the longitudinal spacing of the material are the main design variables that determine the safety of the frame. In this case, the diameter and thickness of the frame may vary according to the properties of the material. In the present embodiment, the half-armor frame 131 and the lower frame 133, which are steel pipe frames, have a diameter of 39 to 41 mm and a thickness of 2.8 to 3.2 mm in the case of duralumin. In addition, the reinforcing frame 134 may also be provided with a duralumin material, the diameter is 39 ~ 41mm, may be provided with a thickness of 2.8 ~ 3.2mm. The diameter and thickness of the steel pipe reflecting the properties of the duralumin material reflect the safety test of the numerical analysis according to this experimental example, which may be referred to the experimental example to be described later.

In another embodiment, the half call frame 131 and the lower frame 133 is preferably a galvanized steel pipe material. In this case, it is preferable that the half call frame 131 and the lower frame 133 have a diameter of 38 to 39 mm and a thickness of 1.8 to 2.2 mm. In addition, the reinforcing frame 134 may also be provided as a galvanized steel pipe material, the diameter is 38 ~ 39mm, may be provided with a thickness of 1.8 ~ 2.2mm. Diameter and thickness of the steel pipe reflecting the characteristics of the galvanized steel pipe material reflects the safety test of the numerical analysis according to the present experimental example, which may be referred to the experimental example to be described later.

The membrane member 30 is covered on the skeletons 13 and 15 of the disaster prevention shelter assembled by the combination of the plurality of half call frames 131 and the plurality of lower frames 133. In this embodiment, the membrane member 30 may be provided as a material of geotextiles, the thickness of which may be designed to 0.8mm to 1.2mm. More preferably, the membrane member 30 of the geotextile may be designed to a thickness of 1mm. Fig. 5 shows a prefabricated disaster prevention shelter 1 'according to the embodiment of Fig. 6. Fig. 6 shows a three-node connector 135' of a disaster prevention shelter 1 'prefabricated according to the embodiment of Fig. Figure 7 shows a four-node connector 136 'of a disaster prevention shelter 1' prefabricated according to the embodiment of Figure 5. Referring to Figures 5-7, the prefabricated disaster prevention shelter 1 ' There is no steel pipe frame with a volume and weight greater than the bottom floor frame 1333 'as it consists of a combination of additional half call frames 131'. Therefore, it is possible to carry and assemble an adult male enough to easily assemble or dismantle as needed. The experimental example of confirming the safety through the numerical analysis to the control shelter (1 ') model as described above is as follows.

One. Experimental Example  : Control Shelter  Working load analysis

As the load acting on the disaster prevention shelter for the house has no established standards or guidelines, it is applied to evacuation mechanisms by analyzing previous studies and literatures on various loads that may occur in mountain disasters and loads due to housing collapse during earthquakes. A load was selected. The load acting on the disaster prevention shelter for home is divided into the concentrated load and the distribution load including impact in case of mountain disaster such as steep slope collapse and landslide.The loads generated during earthquake can be divided into the loads caused by the collapse of the housing due to vibration. Can be.

The steep collapse and landslide loads are concentrated loads. The average weight of rocks is 4kN. However, when designing a rockfall prevention facility, rockfall loads are generally reflected in the design based on 1kN ~ 30kN. have. (Kim et al., 2016). The distribution load is the impact load due to the soil, and as a result of analyzing 25 measured data of landslides occurring between 2006 and 2011, the impact pressure received by the structure was 21.57 to 214.11 kPa. It was analyzed that the structure was subjected to an impact pressure of 95.36 kPa on average, and that the average velocity of the soil was generated at 6.12 m / sec when the maximum impact force of the damaged structure was applied (Kim et al., 2016).

The collapse load of a house during an earthquake is divided into fixed load roof load and equal load load load, and according to the building load standard and commentary (Architectural Institute of Korea, 2000), the roof load is based on 0.2m of reinforced concrete slab thickness. A load of 5.0 kN / m ² is generated. Loading load is defined as the load related to occupancy of the building, such as occupants or appliances of the building. It is difficult to calculate the exact distribution load because the loading load is likely to move from time to time, and it is set as a house with little load, although it may cause unexpected load such as evacuation during natural disaster.

The working load of the disaster prevention shelter for home is as follows. The steep slope collapse and landslide loads take into account the distribution load of 15kN / m ² and the soil loads up to 2.0m indoor height of general houses, considering the falling load, the working load after the non-concrete building is destroyed, etc. It was selected as shown in Table 1 below. In addition, the load acting during the earthquake was selected as 10kN / m ² in consideration of the fixed roof load and the fluid load.

TABLE 1

Numerical analysis program for disaster adequacy shelter (1) member adequacy analysis according to the present embodiment was performed using the Sap2000 program that is widely used for 3D frame and membrane element analysis. In the modeling for analysis, the material of the membrane member 30 is geotextile, and the section of the steel pipe frame is composed of duralumin or galvanized steel pipe as a 3D Membrane element and a frame solid element, and each member is 20-25 cm. It consisted of the absence of elements.

In relation to the material properties, the materials used in the disaster prevention shelter (1) are geotextiles, duralumin, and galvanized steel pipes. In the case of geotextiles, the properties of tensile strength over 400kN / m were applied among PET Mats.Duralumin is a 2XXX series suitable for the structure of the structure, and galvanized steel pipe is a round bar material that satisfies the safety, usability and economic efficiency among SPVH After selecting, general mechanical properties such as modulus of elasticity, tensile strength, and elongation were used for 3D numerical analysis to be safe under working load using the values of existing data.

Regarding safety standards, there are no standards currently established for the safety shelter for home disaster prevention shelter (1). Therefore, the criteria for safety were established based on the allowable stress method. Generally, the safety factor of steel is 1.5 ~ 2.2 in buildings or civil structures, but the disaster prevention shelter (1) is not always a structure in which stress is applied, but a load acts temporarily in a specific state, so yielding each material in consideration of this By applying a safety factor of 1.5, which corresponds to 66.7% of stress, the stability criteria for allowable stresses were selected as shown in Table 2 below.

TABLE 2

In addition, the allowable displacement criterion was set as shown in Table 3 below as a reference for 5% displacement of the member dimension such as a material having ductile behavior while the member stress was within the allowable stress.

TABLE 3

In order to evaluate the adequacy of the disaster prevention shelter 1 member, it is important to determine the diameter (D), thickness (T), and longitudinal member spacing (CTC) of the duralumin and galvanized steel pipes that are resistant to most external forces. Do. Disaster prevention shelter (1) should also satisfy the safety, but above all, the user should also consider the usability aspects to facilitate assembly and disassembly easily. The narrower the longitudinal spacing and the larger the member diameter, the greater the effect in terms of safety. However, if the number of members is unnecessarily large, it is disadvantageous in terms of economy and usability. Therefore, in this test example, the member adequacy evaluation was performed by varying the diameters, thicknesses, and longitudinal spacings of geotextiles, duralumins, geotextiles, and galvanized steel pipes based on the specifications of members currently on the market.

2-1. Geotextile + Duralumin Absence Assessment

Table 4 below shows a model in which the diameter, thickness, and longitudinal spacing of the duralumin material per case of the loads are different. In Table 4, case1 and case2 are models using earthquake loads, and case3 and case 4 are landslide load models.

TABLE 4

Table 5 below shows the results of numerical analysis for each case model of Table 4 below. As a result of examining the adequacy of member diameter (D), thickness (t), and vertical spacing (Skeleton spacing) of disaster prevention shelter (1) combined with geotextile and duralumin, stress and displacement were the largest at the crown. .

TABLE 5

8 shows the evaluation of the bending momentum of the duralumin steel pipe member according to the present experimental example. Referring to [Table 5], in case 1 and case 2, stress was concentrated in geotextiles more than duralumin, which is a skeleton. This is a result of geosynthetic fiber that plays a role of dispersing the load to duralumin when the load is generated and resists the load. In addition, in case2, the longitudinal spacing is narrower than case1, but the stress and displacement are large, which indicates that the diameter and thickness of the member have a greater influence on the member force than the longitudinal spacing.

On the other hand, case3 and case4, which applied landslide load, were found to concentrate stress on duralumin rather than geotextile, which is narrow in the longitudinal distance of duralumin member, so that the geotextile disperses the load rather than resists the duralumin member. It can be seen that the stress is transferred.

2-2. Geosynthetic + Zinc Duct Steel Pipe Evaluation

Referring to [Table 4], the results of the safety review through numerical analysis by varying the longitudinal interval for the geotextile and galvanized steel pipe diameter (D) = 38.1 mm and thickness (t) = 2.0 mm are shown in Table 6 below. ] Is the same. 9 shows the bending momentum evaluation of the galvanized steel pipe member according to the present experimental example.

TABLE 6

Similar to the result of geosynthetic + duralumin, the maximum stress and displacement occurred at the top end, and geosynthesis disperses the load in galvanized steel pipe rather than resisting it. In case 1 and case 2 with housing collapse load during earthquake, the stress and displacement decreased by about 25% when the length of member longitudinal spacing increased by 100 mm, but in case 3 and case 4 with landslide load 3.2 times larger than the load in earthquake A 50 mm gap decreases the stress and displacement by about 20%. This can be interpreted as a safety precaution in the case of a relatively large working load, which increases the number of members and disperses stress.

3. Experimental  result

Geosynthetics disperses the load rather than resisting external forces, so that the load is concentrated in the duralumin and galvanized steel pipes, which are the main member materials, and the longitudinal member of the duralumin and galvanized steel pipe is increased rather than increasing the thickness (T) and tensile strength of the geotextile. Effective load distribution through spacing adjustment seems to be the dominant factor in improving the safety of disaster shelter.

In the case of disaster prevention shelter (1) combined with geotextile and duralumin, the longitudinal spacing of duralumin, which constitutes the framework, is more concentrated in the geotextile, and the diameter (D) and thickness (T) of duralumin than the longitudinal spacing. ) Seems to have more influence on absence force. In case of disaster prevention shelter combined with geotextile and galvanized steel pipe, longitudinal member spacing has a greater effect on member force and stress reduction effect than when small working load is large. It is thought that it is effective to disperse the stress.

Duralumin and galvanized steel pipe materials can be used as main materials for disaster prevention shelter for housing in terms of safety and usability.In manufacturing disaster prevention shelter, it is necessary to apply the landslide load with a large working load in consideration of the complexity of disasters to ensure safety. It would be reasonable to decide on this. Accordingly, the model of caseal and case4 where the highest external force is applied is 40mm in diameter, 3mm thick and 250mm longitudinally spaced apart from the case 3, and the longitudinal end and sidewall loads are superior to case4. It was confirmed that it can endure.

Although the present invention has been described in detail through the representative embodiments above, it will be understood by those skilled in the art that various modifications can be made without departing from the scope of the present invention with respect to the above-described embodiments. will be. Therefore, the scope of the present invention should not be limited to the embodiments described, but should be defined by all changes or modifications derived from the claims and the equivalent concepts as well as the following claims.

1: control shelter
10: framework of control shelter
13, 15: cross-sectional skeleton
131: half call frame
133: lower frame
134: reinforcement frame
135: three-node connector
136: four-node connector
1351, 1361: body part
1353, 1363: extension
30: membrane member

Claims (11)

For disaster shelter for natural disasters,
A half arc frame having a proximal portion curved and forming one side of the upper skeleton;
A lower frame supporting the half call frame; And
And a connector for coupling the half frame and the lower frame to form a cross-sectional skeleton of the disaster prevention shelter by combining the plurality of half frame and the plurality of lower frames.
The half call frame is a disaster prevention shelter, characterized in that the pair is bound based on the connector to form a top end in a closed structure.
The method of claim 1,
Disaster prevention shelter, characterized in that the cross-sectional skeleton of the disaster prevention shelter formed by combining the half frame and the lower frame is a horseshoe type.
The method of claim 1,
Further comprising a reinforcing frame to form a longitudinal gap between the cross-sectional skeleton of the disaster prevention shelter,
The reinforcement frame,
Disaster prevention shelter, characterized in that for binding the cross-sectional skeleton of the disaster prevention shelter based on the connector.
The method of claim 1,
The lower frame,
A lower sidewall frame connected to one end of the half call frame through the connector in a direction perpendicular to the ground; And
And a bottom bottom frame connected to the bottom side wall frame through the connector in a direction parallel to the ground and perpendicular to the bottom side wall frame.
The method of claim 1,
The connector,
Body portion forming a node of the disaster prevention shelter skeleton;
Disaster prevention shelter characterized in that it has an extension portion extending from the body portion to penetrate the end of the half frame or the lower frame.
The method of claim 5,
The connector,
A three-node connector in which the three extensions are used for the cross-sectional skeleton of the disaster prevention shelter located at the front or the rear; And
Disaster prevention shelter, characterized in that consisting of the four-node connector formed of the four extension parts used in the cross-sectional skeleton of the disaster prevention shelter disposed at every longitudinal interval except the front or rear of the cross-sectional skeleton of the disaster prevention shelter.
The method of claim 1,
The half call frame and the lower frame,
Disaster prevention shelter characterized by duralumin material.
The method of claim 7, wherein
The half call frame and the lower frame,
Disaster prevention shelter, characterized in that the diameter is 39 ~ 41mm, the thickness is 2.8 ~ 3.2mm.
The method of claim 1,
The half call frame and the lower frame,
Disaster prevention shelter characterized by the galvanized steel pipe material.
The method of claim 9,
The half call frame and the lower frame,
Disaster prevention shelter, characterized in that the diameter is 38 ~ 39mm, the thickness is 1.8 ~ 2.2mm.
The method of claim 1,
It further comprises a membrane member which is covered on the skeleton of the disaster prevention shelter assembled by a combination of a plurality of said half frame and a plurality of said lower frames,
Disaster prevention shelter, characterized in that the membrane member is a material of geotextile.

Images