Earthquake-resistant reinforcing structure of existing house

Abstract

To provide an earthquake-resistant reinforcing structure of an existing house sufficiently provided with unequal settlement countermeasures.SOLUTION: An earthquake-resistant reinforcing structure 1 of an existing house is newly installed inside an existing house. In this case, a column frame 21, a ceiling frame (first ceiling frame 22, second ceiling frame 23), and a protective frame 2 as a lower frame 20 are installed indoors. A foundation 3 is provided below the protective frame 2. Further, a plurality of piles 5 is driven into the ground G by inserting the piles into through-holes provided in the foundation 3.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a seismic reinforcement structure for an existing house. [Background technology]

[0002] Conventionally, as a method for protecting human lives and property from the collapse and damage of buildings caused by earthquakes, a method has been known in which a steel frame structure is constructed in one room of a building, with steel frames assembled into a frame shape, and the interior of the structure is made into an earthquake-resistant room (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-120045 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned methods have the problem that they do not adequately prevent existing houses from tilting due to liquefaction, that is, they do not adequately prevent uneven settlement.

[0005] In view of the above problems, the present invention aims to provide an earthquake-resistant reinforcement structure for an existing house in which sufficient measures have been taken to prevent uneven settlement. [Means for solving the problem]

[0006] The above object of the present invention can be achieved by the following means: Note that the parentheses indicate reference symbols of embodiments to be described later, but the present invention is not limited to these.

[0007] According to the invention of claim 1, a seismic reinforcement structure (1) for an existing house is newly installed in a room of an existing house (K), A protective frame (2) installed in the room as a pillar frame (21), a ceiling frame (a first ceiling frame 22, a second ceiling frame 23), and a lower frame (20); A foundation (3) provided at the bottom of the protective frame (2); The foundation (3) is characterized by comprising a plurality of piles (5) that are driven into the ground (G) by being inserted into through holes provided in the foundation (3).

[0008] According to the invention of claim 2, in the earthquake-resistant reinforcement structure for an existing house described in claim 1, ribs (5a) are provided at regular intervals on the outer periphery of each of the plurality of piles (5), The diameter of the rib (5a) is characterized in that it is formed so as to gradually decrease as the depth of the ground (G) increases.

[0009] According to the invention of claim 3, in the earthquake-resistant reinforcement structure for an existing house described in claim 1 or 2, the protective frame (2) is provided with fire-resistant materials (fire-resistant flooring 9a, fire-resistant board 9b, fire-resistant board 9c), The fireproof material is characterized by being used to construct the ceiling, floor, and walls of the room.

[0010] According to the invention of claim 4, in the earthquake-resistant reinforcement structure for an existing house described in claim 1 or 2, the ceiling frame (second ceiling frame 23) is provided with a wire mesh (10).

[0011] According to the invention of claim 5, in the earthquake-resistant reinforcement structure for an existing house described in claim 1 or 2, a shelf-like frame (12) is installed on at least one surface of the wall inside the room.

[0012] According to the invention of claim 6, in the earthquake-resistant reinforcement structure for an existing house described in claim 1 or 2, an escape exit (13) is provided under the floor of the room, allowing a person (H) to escape from the room to the outside.

[0013] According to the invention of claim 7, in the earthquake-resistant reinforcement structure for an existing house according to claim 1 or 2, a tank (15) is provided in the room, The tank (15) is provided with a water supply passage (16a) through which water can be supplied from the outside, and a circulation passage (16b) through which water discharged from the tank (15) is returned to the tank (15), The circulation path (16b) is characterized by being provided with a faucet (17). [Effects of the Invention]

[0014] Next, the effects of the present invention will be described with reference to the drawings. Note that the reference symbols in parentheses are those of the embodiments described below, but the present invention is not limited to these.

[0015] According to the invention of claim 1, the interior of the existing house (K) can be reinforced with a protective frame (2), and furthermore, measures against uneven subsidence can be taken by providing a foundation (3) and piles (5).

[0016] Therefore, according to the present invention, it is possible to provide an earthquake-resistant reinforcement structure for an existing house in which sufficient measures have been taken to prevent uneven settlement.

[0017] According to the invention of claim 2, the diameter of the rib (5a) is formed so that the diameter gradually decreases as the depth of the ground (G) increases, thereby exerting a wedge effect on the ground (G).

[0018] According to the invention of claim 3, fire prevention measures can be implemented on the floor, walls, and ceiling, making it possible to prevent the spread of fire.

[0019] According to the invention of claim 4, when an earthquake occurs, the wire mesh (10) can block glass fragments and the like that fall from above the wire mesh (10).

[0020] According to the invention of claim 5, the strength of the room can be improved and the material can be used as furniture or the like on a normal basis.

[0021] According to the invention of claim 6, even in an emergency such as an earthquake when it is impossible to escape through a door, window, etc., it is possible to escape to the outside of the room.

[0022] According to the invention of claim 7, the water can be used not only for daily life but also as water in emergencies such as earthquakes. [Brief explanation of the drawings]

[0023] [Figure 1] (a) is a front view showing an existing house, and (b) is a front view showing the state in which an earthquake-resistant reinforcement structure for an existing house according to one embodiment of the present invention has been installed on the existing house shown in (a). [Figure 2] FIG. 2 is a perspective view showing the earthquake-resistant reinforcement structure for an existing house according to the embodiment. [Figure 3] FIG. 2 is a front view mainly showing the interior of a room in which the earthquake-resistant reinforcement structure for an existing house according to the embodiment is installed. [Figure 4] FIG. 10 is an explanatory diagram for explaining a method for driving a pile according to the embodiment into the ground. [Figure 5] FIG. 1 is an explanatory diagram for explaining a method for constructing a floor, walls, and ceiling in a room. [Figure 6] FIG. 10 is an explanatory diagram illustrating that an escape exit and an underfloor storage compartment are provided under the floor. [Figure 7] FIG. 10 is an explanatory diagram illustrating the flow of water in a tank installed indoors. DETAILED DESCRIPTION OF THE INVENTION

[0024] <Explanation of earthquake-resistant reinforcement structure of existing houses> An embodiment of a seismic reinforcement structure for an existing house according to the present invention will be described below in detail with reference to the drawings. In the following description, when referring to directions such as up, down, left, and right, they refer to the directions when viewed from the front of the illustration.

[0025] The earthquake-resistant reinforcement structure for an existing house according to this embodiment is, for example, installed as a new earthquake-resistant reinforcement structure 1 for an existing house, as shown in Fig. 1(b), in one room KA of an existing house K as shown in Fig. 1(a). Note that the existing house K shown in Fig. 1(a) has a concrete continuous footing Kb installed at the bottom of the column Ka, and multiple beams Kc installed under the floor.

[0026] As shown in FIG. 2, the earthquake-resistant reinforcement structure 1 for an existing house includes a protective frame 2 installed inside one room KA shown in FIG. 1(a). As shown in FIG. 2, the protective frame 2 includes a lower frame 20 attached to the lower perimeter of the one room KA shown in FIG. 1(a). The lower frame 20 is constructed by joining square pipes or the like. As shown in FIG. 2, a plurality of column frames 21 (three in the figure) made of square pipes or the like are erected and fixed at regular intervals at each of the four corners of the lower frame 20. As shown in FIG. 2, a first ceiling frame 22 made of square pipes or the like is installed in the middle of the plurality of column frames 21 installed at each of the four corners in a direction perpendicular to the column frames 21 (horizontal direction) so as to connect the column frames 21. Furthermore, as shown in FIG. 2, a second ceiling frame 23 made of square pipes or the like is installed so as to connect all of the upper parts of the plurality of column frames 21 at the four corners. As shown in Fig. 2, this second ceiling frame 23 is provided with a plurality of sidings 24 and siding support materials 25. Also, as shown in Fig. 2, a plurality of column frames 21 provided at each of the four corners are provided with braces 26 made of square pipes or the like to reinforce the spaces between these column frames 21.

[0027] Thus, such a protective frame 2 is installed in a room KA shown in FIG. 1(a).

[0028] On the other hand, as shown in Figure 2, a concrete foundation 3 is provided below the lower frame 20 of the protective frame 2. As shown in Figures 2 and 3, reinforcing bars 4 are buried at regular intervals in this foundation 3. Furthermore, although not shown, multiple openings for passing piles are formed in this foundation 3.

[0029] Thus, as shown in FIGS. 2 and 3, a pile 5 to be driven into the ground G is inserted into such a pile penetration opening (not shown). The pile 5 is made of, for example, a steel pipe or reinforcing bar, and is formed in a rod shape as shown in FIGS. 1 to 3. As shown in FIG. 4, the pile 5 is provided with ribs 5a that are elongated rectangular in front view and spaced apart along its axial direction (vertical direction in the figure). The ribs 5a are formed so that their diameters gradually decrease along the axial direction (vertical direction in the figure). Therefore, the provision of such ribs 5a can exert a wedge effect on the ground G shown in FIGS. 2 and 3, thereby achieving a greater bearing capacity than without the ribs 5a. The ribs 5a are particularly effective when the ground G contains a weak layer Ga, as shown in FIGS. 2 and 3. In this case, if the piles 5 are driven into the bearing layer Gb, a large bearing capacity can be obtained even if a weak layer Ga is present. Furthermore, if the ribs 5a as described above are provided, a wedge effect can be exerted on the ground G, so that an even larger bearing capacity can be obtained even if a weak layer Ga is present.

[0030] When driving a pile 5 into the ground G, the pile 5 is inserted into a pile penetration opening (not shown) and then driven into the ground G using a hydraulic hammer 6 as shown in FIG. 4. At this time, as shown in FIG. 4, a load cell 7 is provided between the hydraulic hammer 6 and the pile 5, and the strain caused by the impact is electrically detected by this load cell 7. As shown in FIG. 4, a recorder 8 such as a PC (Personal Computer) is electrically connected to the load cell 7. This allows the recorder 8 to calculate and record the load based on the strain caused by the impact detected by the load cell 7. Therefore, the bearing capacity of the pile 5 can be immediately confirmed at the site where the pile 5 is being driven into the ground G. This makes it possible to drive the pile 5 with an appropriate bearing capacity.

[0031] Therefore, by doing as described above, the interior of the one room KA shown in Fig. 1(a) can be reinforced with the protective frame 2, and furthermore, measures against uneven settlement can be taken by providing the foundation 3 and piles 5. Therefore, according to this embodiment, it is possible to provide an earthquake-resistant reinforcement structure for an existing house in which measures against uneven settlement have been sufficiently taken.

[0032] In addition to the above, in this embodiment, fire prevention measures are also implemented because fires that occur during earthquakes are also a major problem. To explain this in more detail, as shown in FIG. 5, fire-resistant flooring 9a made of a fire-resistant material is installed on the lower frame 20 side of the protective frame 2. This forms the floor of the single room KA shown in FIG. 1(a). Also, as shown in FIG. 5, fire-resistant boards 9b made of a fire-resistant material are installed on the column frames 21 of the protective frame 2. This forms the interior walls of the single room KA shown in FIG. 1(a). Furthermore, as shown in FIG. 5, fire-resistant boards 9c made of a fire-resistant material are installed on the second ceiling frame 23 of the protective frame 2. This forms the interior ceiling of the single room KA shown in FIG. 1(a).

[0033] In this way, fire prevention measures can be implemented on the floor, walls, and ceiling, thereby preventing the spread of fire.

[0034] 2 and 5, a wire mesh 10 is attached to the upper surface of the joist support material 25 over the entire surface of the second ceiling frame 23. This allows the wire mesh 10 to block glass fragments and the like that fall from above in the event of an earthquake. Also, as shown in FIG. 5, a fireproof sheet 11 is attached to the upper surface of the wire mesh 10 as a fire prevention measure.

[0035] On the other hand, as shown in Figure 3, a shelf-like frame 12 is installed on one side of the fireproof board 9b that constitutes the interior wall. This not only improves the strength of the interior, but also allows it to be used as furniture or the like in normal times.

[0036] In this embodiment, as shown in FIG. 3, an escape exit 13 is provided under the fire-resistant flooring 9a so that people can escape to the outside of the room KA shown in FIG. 1(a) even when escape through a door or window is impossible in an emergency such as an earthquake. As shown in FIG. 6, this escape exit 13 has a door 13a that can be opened and closed. In an emergency, a person H can open the door 13a, crawl into the escape exit 13, and escape to the outside of the room KA shown in FIG. 1(a) through an exterior door 13b. This allows people H to escape to the outside of the room even when escape through a door or window is impossible in an emergency such as an earthquake. As shown in FIG. 3, multiple underfloor storage cabinets 14 are provided under the fire-resistant flooring 9a. As shown in FIG. 6, each of the multiple underfloor storage cabinets 14 can be opened and closed with a door 14a. Emergency supplies 14b can be stored inside the underfloor storage cabinets 14. This ensures survival even in the unlikely event that people are unable to escape to the outside of the room through the escape exit 13. Examples of disaster prevention items 14b include water, food, helmets, safety shoes, crowbars, hammers, shovels, fire extinguishers, lights, ropes, manual portable chargers, portable radios, and sleeping bags.

[0037] Meanwhile, since water is the most important thing for sustaining human life, in this embodiment, as shown in Fig. 3, a tank 15 is installed on one side of fireproof board 9b that constitutes the wall of the room. This tank 15 is capable of storing water W that can be used for daily life, as shown in Fig. 7. Further, as shown in Fig. 7, a water supply path 16a that can supply water into tank 15 from the outside is connected to this tank 15, and further, a circulation path 16b that can discharge water out of tank 15 is connected to this tank 15. Furthermore, as shown in Fig. 7, a faucet 17 is connected to circulation path 16b, and a washbasin 17a is installed below faucet 17, to which a discharge path 17b that discharges water to the outside is connected.

[0038] Thus, when faucet 17 is closed, water flows into water supply path 16a through circulation path 16b and is supplied back into tank 15. That is, the water in tank 15 is circulated to maintain a full water state. When faucet 17 is opened, the water flowing through circulation path 16b is discharged into sink 17a through faucet 17. At this time, water is supplied from water supply path 16a, just like in the case of existing piping, in addition to the water flowing from circulation path 16b. As a result, water is supplied from water supply path 16a to tank 15 in an amount equal to the amount of water discharged by faucet 17, maintaining a full water state.

[0039] Therefore, this will enable the water to be used not only for daily life but also as water in emergencies such as earthquakes.

[0040] <Description of Modifications> The above detailed description is of the earthquake-resistant reinforcement structure 1 for an existing house in this embodiment. However, the shapes and the like shown in this embodiment are merely examples, and various modifications and changes are possible within the scope of the gist of the present invention as described in the claims. For example, in this embodiment, an example is shown in which the protective frame 2 is constructed using square pipes, but this is not limiting, and any method that can construct the protective frame 2 is acceptable.

[0041] Furthermore, in this embodiment, an example has been shown in which the pile 5 is provided with the rib 5a in order to exert a wedge effect on the ground G, but if unnecessary, it is not necessary to provide it.

[0042] In this embodiment, the shelf-like frame 12 is installed to improve the strength of the room and can be used as furniture in normal times, but it does not have to be installed if it is not required. Also, if there are no space restrictions, it may be installed on two or more surfaces of the fireproof board 9b that constitutes the wall of the room, not just one surface.

[0043] Furthermore, in this embodiment, an example has been shown in which a new earthquake-resistant reinforcement structure 1 for an existing house is installed in one room KA of an existing house K, but it goes without saying that it may be installed in more than one room. [Explanation of symbols]

[0044] 1. Earthquake-resistant reinforcement structure for existing houses 2 Protective Frame 20 Lower frame 21 Pillar Frame 22 First ceiling frame (ceiling frame) 23 Second ceiling frame (ceiling frame) 3 Basics 5 stakes 5a Rib 9a Fire-resistant flooring (fire-resistant material) 9b Fireproof board (fireproof material) 9c Fireproof board (fireproof material) 10 wire mesh 12 Shelf-like frame 13 Escape Exit 15 Tank 16a Water supply channel 16b Circulation route 17 Faucet G Ground H people

Claims

1. A newly installed earthquake-resistant reinforcement structure for an existing house inside an existing house. A protective frame installed in the room as a column frame, a ceiling frame, and a lower frame; a foundation provided at the bottom of the protective frame; and a plurality of piles that are driven into the ground by being inserted into through holes provided in the foundation.

2. Ribs are provided at regular intervals on the outer periphery of each of the plurality of piles, 2. The earthquake-resistant reinforcement structure for an existing house according to claim 1, wherein the diameter of the ribs is formed so as to gradually decrease as the depth of the ground increases.

3. The protective frame is provided with a fire-resistant material, 3. The earthquake-resistant reinforcement structure for an existing house according to claim 1, wherein the fire-resistant material is used to construct the ceiling, floor, and walls of the room.

4. 3. The earthquake-resistant reinforcement structure for an existing house according to claim 1, wherein the ceiling frame is provided with a wire mesh.

5. 3. The earthquake-resistant reinforcement structure for an existing house according to claim 1, wherein a shelf-like frame is installed on at least one surface of the wall inside the room.

6. 3. The earthquake-resistant reinforcement structure for an existing house according to claim 1, wherein an escape exit is provided under the floor of the room, allowing people to escape from the room to the outside.

7. A tank is provided in the chamber, The tank is provided with a water supply passage that can supply water from the outside, and a circulation passage that returns water discharged from the tank to the tank again; 3. The earthquake-resistant reinforcement structure for an existing house according to claim 1, wherein a faucet is provided in the circulation path.

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