Wall structure to prevent tipping

Abstract

This invention provides a wall anti-tipping structure that reduces construction time and costs, is easy to construct, and prevents the wall from tipping over even if the studs detach from the upper runners. [Solution] In a wall body anti-tipping structure 1 equipped with a wall base material consisting of a plurality of studs 13 extending vertically between an upper runner 11 and a lower runner 12, a horizontal member 20 is provided that spans between the plurality of studs 13, and the horizontal member 20 is connected to the upper runner 11 or a fixing member 22 that fixes the upper runner 11 to the upper structural frame (structural slab 14). The horizontal member 20 is made of a linear member and is inserted through a hole (horizontal member insertion hole 21) formed in the upper end of the stud 13.

Description

Technical Field

[0001] The present invention relates to a structure for preventing a wall from toppling over.

Background Art

[0002] As a structure for preventing a partition wall from toppling over during an earthquake, for example, there is one described in Patent Document 1 or 2. Patent Document 1 describes a partition floor structure in which a stud collapse prevention fitting protruding downward from a runner is interposed between the runner and the stud. In this partition floor structure, when the upper end of the stud comes off the runner due to deformation during an earthquake, the stud engages with the stud collapse prevention fitting to prevent the partition wall from toppling over. Patent Document 2 describes a structure in which a toppling prevention tool is provided at the upper part of a ceiling base connected to the upper runner of a partition wall, and a structure body such as a ceiling slab and the toppling prevention tool are connected by a wire. According to this toppling prevention tool, since the ceiling base to which the partition wall is connected is connected to the structure body by a wire, the sway of the ceiling base is suppressed and the partition wall is prevented from toppling over.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the invention described in Patent Document 1, the anti-tipping device is installed for each stud, resulting in a large number of devices and thus high installation time and cost. In addition, in the invention described in Patent Document 2, although the ceiling substrate and partition wall are connected to the structure via wires, the connection structure between the upper runner of the partition wall and the stud is not mentioned, and there is no measure taken in case the stud comes off the upper runner.

[0005] From this perspective, the present invention aims to provide a wall anti-tipping structure that can reduce construction time and costs, is easy to construct, and can prevent tipping even if the studs detach from the upper runners. [Means for solving the problem]

[0006] The present invention, which solves the aforementioned problems, provides a wall base material comprising a plurality of studs extending in the vertical direction erected between an upper runner and a lower runner, wherein a horizontal member is provided that spans between the plurality of studs, and the horizontal member is connected to the upper runner or a fixing member that fixes the upper runner to the upper structural frame. According to the wall overturning prevention structure of the present invention, even if the upper end of a stud detaches from the upper runner during an earthquake, the stud and wall material can be prevented from overturning because the stud is connected to the upper runner or fixing member by a horizontal member. By using a horizontal member that spans multiple studs, the number of parts can be reduced, thereby reducing construction time and costs.

[0007] In the wall anti-tipping structure of the present invention, it is preferable that the horizontal member is inserted through a hole formed in the upper end of the stud. With this configuration, the horizontal member can be easily installed on the stud and easily connected to the upper runner or fixing member.

[0008] In the wall overturning prevention structure of the present invention, the horizontal members are preferably made of linear members and connected to the upper runner or the fixing member. The "linear member" in the present invention is, for example, a wire or a rope. With such a configuration, the horizontal members can be installed more easily using studs and can be easily connected to the upper runner or the fixing member.

[0009] In the wall anti-tipping structure of the present invention, the horizontal members are preferably composed of vibration-damping members made of grooved steel plates, and are connected at multiple points to the upper runner or the fixing member via connecting members. With such a configuration, the strength of the horizontal members is high, and the anti-tipping performance is enhanced.

[0010] In the wall anti-tipping structure of the present invention, it is preferable that the horizontal members are positioned within the width range of the multiple erected studs. With this configuration, since the horizontal members do not extend beyond the width range of the studs, the horizontal members are not exposed to the outside of the wall, and the wall panels can be easily installed.

[0011] In the wall anti-tipping structure of the present invention, it is preferable that the horizontal members are fixed in contact with the side surfaces of the studs. With this configuration, the horizontal members can be easily installed on the studs.

[0012] In the wall overturning prevention structure of the present invention, the horizontal member is preferably made of a strip-shaped member and connected to the upper runner or the fixing member. The strip-shaped member is, for example, a belt. With such a configuration, the horizontal member can be easily installed on the stud and the horizontal member can be easily handled.

[0013] In the wall anti-tipping structure of the present invention, the horizontal members are preferably made of flat metal plates and connected at multiple points to the upper runner or the fixing member via connecting members. With such a configuration, the horizontal members can be easily installed on the studs. [Effects of the Invention]

[0014] According to the wall overturning prevention structure of the present invention, construction time and costs can be reduced, construction can be easily carried out, and overturning can be prevented even if the studs come off the upper runners. [Brief explanation of the drawing]

[0015] [Figure 1] This is an overall perspective view showing a wall-tipping prevention structure according to the first embodiment of the present invention. [Figure 2] This is an enlarged view showing a wall-tipping prevention structure according to the first embodiment of the present invention, where (a) is an enlarged view of a key part showing the fixing state of the end of the horizontal member, and (b) is an enlarged view of a key part showing the fixing state of the middle part of the horizontal member. [Figure 3] This is a perspective view of a main part showing a wall-tipping prevention structure according to the first embodiment of the present invention. [Figure 4] This is a perspective view of a main part showing a wall-tipping prevention structure according to a second embodiment of the present invention. [Figure 5] This is a perspective view of the main part showing a wall-tipping prevention structure according to the third embodiment of the present invention. [Figure 6] This is a perspective view of the main part showing a wall-tipping prevention structure according to the fourth embodiment of the present invention. [Modes for carrying out the invention]

[0016] A wall anti-tipping structure according to the first embodiment of the present invention will be described in detail with reference to the drawings. In this embodiment, the case in which the wall anti-tipping structure of the present invention is applied to a high wall exceeding 5 meters in height, erected in a large space such as an exhibition hall, factory, or lobby will be described as an example. In Figure 1, the middle portion of the stud is omitted, and the two anti-vibration members at the top and bottom are shown. As shown in Figure 1, the wall anti-tipping structure 1 according to this embodiment includes a wall base material 10 having an upper runner 11, a lower runner 12, and studs 13. The wall anti-tipping structure 1 further includes a horizontal member 20 and a fixing member 22.

[0017] The upper runner 11 is a member that supports the upper end of the stud 13 and extends horizontally at the upper end of the wall base material 10. The upper runner 11 is composed of a channel steel with a U-shaped cross-section having a horizontal plate portion and a pair of side wall plate portions, and is arranged to open downward. The upper runner 11 abuts against the lower surface of the structural slab 14 (see FIG. 2), which is a structural body above the wall, and is fixed by an anchor 15 driven into the structural slab 14. The anchor 15 penetrates the horizontal plate portion of the upper runner 11, and a nut is screwed onto the portion protruding from the horizontal plate portion. Note that the structural body is not limited to the structural slab 14 and may be a steel member such as a beam or a concrete member.

[0018] The lower runner 12 is a member that supports the lower end of the stud 13 and extends horizontally at the lower end of the wall base material 10. The lower runner 12 is composed of a channel steel with a U-shaped cross-section having the same shape as the upper runner 11, and is arranged to open upward. The lower runner 12 abuts against the upper surface of the floor slab 16 below the wall, and is fixed by an anchor (not shown) driven into the floor slab 16. The anchor penetrates the horizontal plate portion of the upper runner 11, and a nut is screwed onto the portion protruding from the horizontal plate portion.

[0019] The stud 13 is a member that supports the wall panel. The stud 13 is composed of, for example, a square pipe with a rectangular cross-section and extends in the vertical direction. The stud 13 has a length exceeding 5 meters and is erected spanning between the upper runner 11 and the lower runner 12. A plurality of studs 13 are arranged at a predetermined interval (for example, a pitch of 450 mm) along the longitudinal direction of the upper runner 11 and the lower runner 12.

[0020] Studs 13 have through holes 17. Stud bracing members 18 are inserted through the through holes 17. Stud bracing members 18 are made of, for example, channel steel with a U-shaped cross-section. Stud bracing members 18 extend horizontally parallel to the upper runner 11 and the lower runner 12 and are inserted through the through holes 17 of each stud 13. Multiple stud bracing members 18 are arranged vertically at predetermined intervals (for example, at 1200 mm pitches).

[0021] The horizontal member 20 is a member for preventing the studs 13 from tipping over, and is stretched across a plurality of studs 13, 13... In this embodiment, the horizontal member 20 is made of a linear member. The linear member is, for example, a metal wire. Note that the linear member is not limited to a wire, but may be other things such as a cloth rope, a fibrous belt, or a steel bolt. A horizontal member insertion hole 21 is formed at the upper end of the stud 13. The horizontal member insertion hole 21 is a hole through which the horizontal member 20 is inserted. In this embodiment, the horizontal member insertion hole 21 is φ10 mm, and the wire has a diameter of 4 mm. The horizontal member insertion hole 21 is formed at a predetermined length (for example, 200 mm) from the upper end of the stud 13 and at a certain height. The horizontal member 20 is arranged within the width range of the plurality of erected studs 13. Note that the position of the horizontal member insertion hole 21 can be changed as appropriate.

[0022] In this embodiment, the cross member 20 is fixed at least at both ends to fixing members 22 that fix the upper runner 11. As shown in Figures 2(a) and 3, the fixing members 22 at the ends of the cross member 20 (end fixing parts) are made up of eye nuts 23 that are screwed onto the lower ends of anchors 15 that protrude downward from the upper runner 11. The eye nut 23 has a ring-shaped locking part formed on the nut portion, and the end of the cross member 20 is locked into the locking part. When fixing the end of the cross member 20 to the eye nut 23, the end of the cross member 20 is passed through the ring-shaped locking part and folded back, and fixed with a crimping jig 24 to form a folded ring portion. As a result, the locking part of the eye nut 23 and the ring portion of the cross member 20 lock into each other, and the cross member 20 is fixed to the eye nut 23.

[0023] The horizontal member 20 is also fixed to the fixing member 22 in the intermediate portion sandwiched between both ends. The portion in which the intermediate part is fixed is called the intermediate fixing portion. In this embodiment, multiple intermediate fixing portions are provided between the end fixing portions at predetermined intervals. Three studs 13 are arranged between the intermediate fixing portion and the end fixing portion, or between adjacent intermediate fixing portions. In other words, the horizontal member 20 is fixed to the fixing member 22 every time it passes through the horizontal member insertion holes 21 of the studs 13 at three locations. As shown in Figure 2(b) and Figure 3, the fixing member 22 of the portion in which the intermediate part of the horizontal member 20 is fixed (intermediate fixing portion) consists of an eye nut 23 and a shackle 25 that engages with the eye nut 23. The eye nut 23 has the same shape as the end fixing portion and is screwed onto the lower end of the anchor 15 that protrudes downward from the upper runner 11. The shackle 25 has a U-shaped body and a screw portion that closes the tip of the U-shape. When fixing the middle portion of the horizontal member 20 to the eye nut 23, the main body of the shackle 25 is passed through the ring-shaped locking portion, and the middle portion of the horizontal member 20 is inserted inside the main body. In this state, by tightening the screw portion, the middle portion of the horizontal member 20 is inserted inside the shackle 25 which is locked to the eye nut 23, and the horizontal member 20 is fixed to the eye nut 23 via the shackle 25. The fixing member 22 of the above configuration is positioned within the width range of the multiple erected studs 13.

[0024] The fixing structure between the horizontal member 20 and the fixing member 22 is not limited to the above configuration, and the horizontal member 20 may be fixed to the anchor 15 using other members other than the eye nut 23 and shackle 25 (for example, a hook member or a turnbuckle). Alternatively, the horizontal member 20 may be fixed directly to the upper runner 11 without going through the fixing member 22.

[0025] According to the wall overturning prevention structure 1 described above, the horizontal member 20 is stretched across multiple studs 13, 13, 13... and connected to the fixing member 22. Therefore, even if the upper end of the stud 13 comes off the upper runner 11 during an earthquake, the stud 13 is connected to the fixing member 22 by the horizontal member 20, preventing the stud 13 and the wall material from overturning. In other words, the wall overturning prevention structure 1 acts as a safety device and serves as a fail-safe. It is particularly effective for high walls, which are more prone to overturning than ordinary partition walls.

[0026] In particular, in this embodiment, since fixing members 22 connecting the ends and intermediate portions of the horizontal member 20 are provided for every three studs 13, sufficient fixing strength is ensured. As a result, the horizontal member 20 will not separate from the structural slab 14 above. Furthermore, since the horizontal member 20 is inserted through each stud 13, the studs 13 will not topple over.

[0027] Furthermore, since the horizontal member 20 is stretched across multiple studs 13, 13... and a fixing member 22 is provided for every three studs 13, the number of fixing parts can be reduced compared to the conventional configuration in which all studs were fixed to the upper runner. Therefore, the labor and cost of construction to build the wall anti-tipping structure 1 can be reduced.

[0028] In this embodiment, the horizontal member 20 is a wire and is inserted through a horizontal member insertion hole 21 formed in the stud 13, making it easy to handle the horizontal member 20 and easy to install on the stud 13. Furthermore, since the horizontal member insertion hole 21 is formed at the upper end of the stud, even if the stud 13 comes off the upper runner 11, the stud 13 will hardly tilt and can be held in a stable state.

[0029] Furthermore, since the fixing members 22 at both ends are made of eye nuts 23, they can be easily installed simply by screwing them onto the lower end of the anchor protruding from the upper runner 11. The fixing member 22 at the intermediate fixing section is made of an eye nut 23 and a shackle 25, so the eye nut 23 can be easily installed and the intermediate portion of the horizontal member 20 can be easily secured with the shackle 25.

[0030] Furthermore, since the horizontal members 20 and fixing members 22 are positioned within the width of the multiple erected studs 13, the horizontal members 20 and fixing members 22 do not extend beyond the width of the studs 13. As a result, the horizontal members 20 are not exposed to the outside of the wall, maintaining an aesthetic appearance, and the wall panels can be easily installed.

[0031] Next, with reference to Figure 4, the wall overturning prevention structure 1a according to the second embodiment will be described. In the first embodiment, the horizontal member 20 is a wire, whereas in the second embodiment, as shown in Figure 4, the horizontal member 20a is made of a vibration-retaining member 51. The vibration-retaining member 51, like the other vibration-retaining members 18, is made of, for example, a channel steel with a U-shaped cross-section, extends horizontally parallel to the upper runner 11, and is inserted through the through holes 52 (horizontal member insertion holes) formed in each stud 13. The vibration-retaining member 51 is arranged so that the channel shape opens downward and is stretched across a plurality of studs 13, 13...

[0032] The horizontal member 20a is supported by the fixing member 22 via connecting wires 53 at both the end fixing portion and the intermediate fixing portion. The fixing member 22 consists of an eye nut 23 and a shackle 25. Three studs 13 are positioned between the end fixing portion and the intermediate fixing portion, and between adjacent intermediate fixing portions. In other words, the horizontal member 20a is fixed to the fixing member 22 every three times it passes through the through holes 52 of the studs 13. The eye nut 23 and shackle 25 have the same shape as the intermediate fixing portion in the first embodiment.

[0033] The connecting wire 53 is a connecting member equipped with folded ring portions at both ends. The folded ring portions are formed by folding the ends of the wire into a ring shape and fixing them with a crimping jig 24. When fixing the cross member 20a to the eye nut 23, the main body of the shackle 25 is passed through the ring-shaped locking portion, and the upper edge of the upper folded ring portion of the connecting wire 53 is inserted inside the main body. In this state, by tightening the screw portion, the folded ring portion catches on the screw portion, and the connecting wire 53 is fixed to the eye nut 23 and shackle 25. After that, the lower end of the connecting wire 53 is wrapped around the underside of the cross member 20a and folded back, and fixed with the crimping jig 24 to form the lower folded ring portion. As a result, the cross member 20a is inserted into the lower folded ring portion of the connecting wire 53, and the cross member 20a is fixed. The connecting wire 53 may be used to suspend the horizontal member 20a while taut, or it may be used to insert the horizontal member 20a through the lower folded-over ring portion while slack.

[0034] The fixing structure between the horizontal member 20a and the fixing member 22 is not limited to the above configuration, and the horizontal member 20a may be fixed to the fixing member 22 using other members other than the connecting wire 53 (for example, a hook member or a turnbuckle). Also, the connecting wire 53 may be fixed directly to the upper runner 11 without going through the fixing member 22.

[0035] According to the wall overturning prevention structure 1a with the above configuration, in addition to obtaining the same effects as in the first embodiment, in this embodiment the horizontal member 20a is made of channel steel, so the strength is greater than that of the wire in the first embodiment.

[0036] Furthermore, even if the horizontal member 20a is fixed with the connecting wire 53 in a slack state, when the stud 13 detaches from the upper runner 11 during an earthquake, the connecting wire 53 will become taut and be able to secure the horizontal member 20a.

[0037] Next, with reference to Figure 5, the wall overturning prevention structure 1b according to the third embodiment will be described. In the first embodiment, the horizontal member 20 is a wire, whereas in the third embodiment, as shown in Figure 5, the horizontal member 20b is made of a flat metal plate 55. The metal plate 55 extends horizontally parallel to the upper runner 11 and is welded to the side of each stud 13. The horizontal member 20b is installed on the side of the stud 13 where the wall material is installed (both sides in this embodiment). In other words, in the case of an interior wall facing an exterior wall, the horizontal member 20b only needs to be installed on one side of the stud 13. Note that the fixing of the metal plate 55 to the stud 13 is not limited to welding, and other methods such as screw fastening may be used. Also, the installation position of the horizontal member 20b can be changed as appropriate.

[0038] The horizontal member 20b is supported by the fixing member 22 via annular wire 56 at both the end fixing portion and the intermediate fixing portion. The fixing member 22 consists of an eye nut 23 and a shackle 25. Three studs 13 are positioned between the end fixing portion and the intermediate fixing portion, and between adjacent intermediate fixing portions. In other words, the horizontal member 20b is fixed to the fixing member 22 every three times it passes through the through holes 52 of the studs 13. The eye nut 23 and shackle 25 have the same shape as the intermediate fixing portion in the first embodiment.

[0039] The annular wire 56 is a component formed by shaping a wire into a ring. When fixing the cross member 20b to the eye nut 23, the metal plate 55 is first inserted onto the annular wire 56. Then, the main body of the shackle 25 is passed through the ring-shaped locking part, and the upper edge of the annular wire 56 is inserted inside the main body. In this state, by tightening the screw part, the annular wire 56 catches on the screw part, and the annular wire 56 and the cross member 20b are fixed to the eye nut 23 and the shackle 25. The annular wire 56 may be installed taut or slack.

[0040] With the wall anti-tipping structure 1b described above, the same effects and advantages as in the first embodiment can be obtained, and in this embodiment, the horizontal member 20b can be easily installed on the stud 13. Furthermore, since the installation height of the horizontal member 20b can be easily adjusted, the slack of the annular wire 56 can be controlled.

[0041] Next, with reference to Figure 6, the wall overturning prevention structure 1c according to the fourth embodiment will be described. In the first embodiment, the horizontal member 20 is a wire, whereas in the fourth embodiment, as shown in Figure 6, the horizontal member 20c is made of a strip-shaped member 57. The strip-shaped member 57 is, for example, a resin belt and extends horizontally parallel to the upper runner 11. The horizontal member 20c is screwed to the side of each stud 13. The horizontal member 20c is installed on the side of the stud 13 where the wall material is installed (both sides in this embodiment). Note that the strip-shaped member 57 is not limited to a resin belt, but may be made of, for example, a fibrous material.

[0042] The horizontal member 20c is locked to the fixing member 22 at its end fixing portion. The fixing member 22 is made up of an eye nut 23. When fixing the horizontal member 20c to the eye nut 23, one end of the horizontal member 20c is passed through the ring-shaped locking portion of the eye nut 23 and attached to the belt adjustment jig 58 attached to the other end of the horizontal member 20c. The belt adjustment jig 58 adjusts the length of the belt, and the overall length of the horizontal member 20c is adjusted by changing the relative position between one end and the other end of the horizontal member 20c. After that, the horizontal member 20c is screwed to the side of the stud 13 at a suitable height so that the slack of the horizontal member 20c is in an appropriate state.

[0043] With the wall overturning prevention structure 1c described above, in addition to obtaining the same effects as in the first embodiment, the horizontal member 20c can be easily installed on the stud 13. Furthermore, since the installation height of the horizontal member 20c can be easily adjusted, the sagging of the strip-shaped member 57 can be controlled.

[0044] While embodiments for carrying out the present invention have been described above, the present invention is not limited to the above embodiments, and the material, shape, size, etc. can be appropriately modified without departing from the spirit of the present invention. For example, in the above embodiment, the horizontal member 20 is connected to the eye nut 23 screwed into the anchor 15, but the invention is not limited to this. For example, if the upper runner 11 is installed spaced apart from the upper structural slab, the horizontal member 20 may be directly fixed to the upper runner 11, or it may be fixed to a wire or the like that is fixed to the structural slab and extends to the upper runner 11.

[0045] Furthermore, although the above embodiment described an example where the wall overturning prevention structure 1 is applied to a high wall, it can also be applied to walls of normal height. [Explanation of symbols]

[0046] 1. Wall structure to prevent tipping 10 Wall underlayment 11 Top Runner 12 Lower Runners 13 studs 14. Structural slab (structural frame) 20 Crosspiece 21 Through holes for horizontal members 22 Fixing member 23 Eye Nut 25 shackles 1a Wall structure to prevent tipping 20a cross member 51 Vibration damper 52 Through-hole (horizontal member insertion hole) 53 Connecting wire (connecting component) 1b Wall structure to prevent tipping 20b cross member 55 Metal Plate 56 Annular wire (connecting member) 1c Wall structure to prevent tipping 20c cross member 57 Strip-shaped member

Claims

1. In a wall base material comprising multiple studs extending vertically between an upper runner and a lower runner, It is equipped with a horizontal member that spans between the aforementioned plurality of studs, The horizontal member is connected to the upper runner or a fixing member that secures the upper runner to the upper structural frame. A wall-tipping prevention structure characterized by the following features.

2. The horizontal member is inserted through a hole formed in the upper end of the stud. The wall overturning prevention structure according to feature 1.

3. The aforementioned horizontal member is made of a linear member and is connected to the upper runner or the fixing member. The wall overturning prevention structure according to feature 2.

4. The aforementioned horizontal members are composed of bracing members made of channel-shaped steel plates and are connected to the upper runner or the fixing member at multiple points via connecting members. The wall overturning prevention structure according to feature 2.

5. The aforementioned horizontal members are positioned within the width range of the multiple erected studs. The wall overturning prevention structure according to feature 1.

6. The aforementioned cross members are fixed in contact with the side surfaces of the studs. The wall overturning prevention structure according to feature 1.

7. The aforementioned horizontal member is made of a strip-shaped member and is connected to the upper runner or the fixing member. The wall anti-tipping structure according to feature 6.

8. The aforementioned cross members are made of flat metal plates and are connected to the upper runner or the fixing member at multiple points via connecting members. The wall anti-tipping structure according to feature 6.

Images