Wall body

Abstract

The present invention provides a wall body or the like in consideration of passage properties and equipment arrangement properties in the vicinity of the wall body. An earthquake-resistant wall 1 according to the present invention is provided on a foundation 2. The earthquake-resistant wall 1 has a structure in which concrete Con is filled between panel parts 12 made of steel materials provided on both sides in the wall thickness direction. The earthquake-resistant wall 1 is fixed on the foundation 2 by inserting an anchor bolt 21 projecting upward from the foundation 2 into a hole in a bottom plate 112 provided inside the earthquake-resistant wall 1 so as not to project to the outside of the earthquake-resistant wall 1, and fastening a nut 22 to a portion of the anchor bolt 21 that protrudes from the bottom plate 112.

Description

wall

[0001] The present invention relates to a wall such as a seismic wall.

[0002] Patent Documents 1 to 3 describe walls in which concrete is filled inside steel panels. The wall in Patent Document 1 has a pair of steel panels arranged in the wall thickness direction between a pair of steel pipe columns, and concrete is filled between these panels. In the walls in Patent Documents 2 and 3, the panels on both sides in the wall thickness direction are connected by a partition wall.

[0003] Japanese Patent Laid-Open No. 7-54425 Japanese Patent Laid-Open No. 2022-131243 Japanese Patent Laid-Open No. 2022-131245

[0004] Such walls are often large-scale, and require anchor bolts embedded in the foundation to secure the panel to the foundation and ensure resistance to pull-out. A common anchoring structure is to erect the panel on a base plate in an upside-down T-shape, pass the upper ends of the anchor bolts protruding from the foundation through holes in the base plate inside and outside the wall, and tighten nuts on the protruding parts of the anchor bolts.

[0005] However, this fixing structure makes it difficult for pedestrians to pass near the wall, as they may trip over the nuts on the outside of the wall.Furthermore, the nuts on the outside of the wall may become an obstacle when installing equipment near the wall.

[0006] The present invention has been made in view of the above problems, and has an object to provide a wall or the like that takes into consideration the ease of passage near the wall and the ease of equipment placement.

[0007] In order to solve the above-mentioned problems, the present invention provides a wall body that is built on a foundation, which has a configuration in which concrete is filled between steel panel sections that are provided on both sides of the wall body in the wall thickness direction, and which is fixed to the foundation by inserting anchor bolts that protrude upward from the foundation into holes in a bottom plate that is provided on the inside of the wall body so that they do not protrude outside the wall body, and tightening nuts on the parts of the anchor bolts that protrude from the bottom plate.

[0008] In this invention, when constructing a wall with concrete filled between steel panels, the anchoring structure to the foundation is established by passing anchor bolts through a bottom plate installed only on the inside of the wall and fastening nuts to the parts of the anchor bolts that protrude from the bottom plate. This eliminates the need to place nuts or other items on the outside of the wall, improving accessibility near the wall and making it easier to place equipment or similar near the wall.

[0009] The wall structure has the panel sections mounted on a box-shaped base made of steel, the concrete filled between the panel sections and inside the base, the base being shorter in height than the panel sections, and the bottom plate preferably being mounted on the base. By fixing a small, easy-to-handle base to the foundation and then mounting the panel sections on the base, it is not necessary to directly mount the large panel sections, which make up the majority of the wall, to the foundation, making it easy to build even large-scale walls. Furthermore, the nuts can be tightened by inserting a hand or tool through the base once the wall base is placed on the foundation, making the work easier.

[0010] The base preferably has a pair of side plates on both sides of the wall in the thickness direction of the wall, and the pair of side plates are connected by a connecting plate arranged in the thickness direction of the wall with the plate surfaces oriented vertically, thereby improving the resistance of the base to bending in the thickness direction of the wall.

[0011] It is also desirable that angle members extending in the direction of extension of the wall body be fixed to the inner surfaces of the upper ends of the side panels. The angle members function as reinforcement members for the side panels and can also be used to attach panel sections.

[0012] It is also desirable to arrange a pair of bottom plates on both sides of the wall in the wall thickness direction. This creates a gap between the two bottom plates, making the base lighter and easier to handle. In addition, the gap is filled with the concrete of the wall, improving the integrity of the base and the concrete.

[0013] According to the present invention, a wall can be provided that takes into consideration the ease of passage near the wall and the ease of equipment placement.

[0014] 1 is a diagram showing a shear wall 1. FIG. 2 is a diagram showing a cross section of the vicinity of a base 11 of the shear wall 1. FIG. 3 is a perspective view showing the base 11 before a panel portion 12 is provided. FIG. 4 is a diagram showing a cross section of the base 11. FIG. 5 is a diagram showing the base 11 as viewed from above.

[0015] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0016] 1 is a view showing a shear wall 1 according to an embodiment of the present invention. The shear wall 1 is a wall erected on a foundation 2.

[0017] The foundation 2 is a member made of reinforced concrete, and reinforcing bars (not shown) and anchor bolts 21 (see FIG. 2, etc.) described later are embedded inside the foundation 2.

[0018] The earthquake-resistant wall 1 has a base 11 fixed to the upper surface of the foundation 2 and a panel portion 12 provided on the base 11, the height of the base 11 being smaller than that of the panel portion 12. The panel portions 12 are provided on both sides of the earthquake-resistant wall 1 in the wall thickness direction (see symbol a in Figure 1), and concrete Con is filled between the panel portions 12 and inside the base 11.

[0019] A plurality of base portions 11 and panel portions 12 are arranged adjacent to each other in the extension direction (see symbol b in FIG. 1 ) of the earthquake-resistant wall 1. The extension direction of the earthquake-resistant wall 1 is a direction perpendicular to the wall thickness direction of the earthquake-resistant wall 1 in a plan view. The length of the base portion 11 in the extension direction is greater than the length of the panel portion 12 in the extension direction.

[0020] FIG. 2 shows a cross section of the earthquake-resistant wall 1 near the base 11, and is a vertical cross section along the wall thickness direction of the earthquake-resistant wall 1.

[0021] As described above, anchor bolts 21 are buried inside the foundation 2, with their upper ends protruding upward from the top surface of the foundation 2. A plurality of anchor bolts 21 are arranged at intervals in the wall thickness direction and extension direction of the earthquake-resistant wall 1. In Figure 2, the extension direction of the earthquake-resistant wall 1 corresponds to the normal direction to the page.

[0022] The base 11 is a box-shaped member made of steel, and is provided with side plates 111 and bottom plates (base plates) 112 on both sides in the wall thickness direction of the earthquake-resistant wall 1, with the side plates 111 on both sides connected by tie plates 113, which are connecting plates. The bottom plates 112 are provided on the inside of the earthquake-resistant wall 1 so as not to protrude outside the earthquake-resistant wall 1. Note that "outside (outside, outer surface)" refers to the outer side of the earthquake-resistant wall 1 in the wall thickness direction, and "inside (inside, inner surface)" refers to the inner side of the earthquake-resistant wall 1 in the wall thickness direction.

[0023] The bottom plate 112 has a plurality of holes (not shown) at planar positions corresponding to the anchor bolts 21, and the upper ends of the anchor bolts 21 protruding from the foundation 2 are passed through the respective holes. By tightening nuts 22 onto the protruding portions of the anchor bolts 21 protruding from the bottom plate 112, the base 11 and therefore the earthquake-resistant wall 1 are fixed to the upper surface of the foundation 2. Reference numeral 23 denotes a washer used in conjunction with the nuts 22.

[0024] The panel portion 12 is a plate-like member made of steel, and has a configuration in which angle irons 122 are provided on the inner surface of a rectangular plate-like panel body 121. The angle irons 122 are arranged along the four sides of the panel body 121 and function as reinforcing materials for maintaining the shape of the panel body 121. The angle irons 122 also function as protective materials for preventing damage to the peripheral edges of the panel body 121.

[0025] Although not specifically shown, studs and the like are provided on the inner surface of the panel body 121 to improve its unity with the concrete Con, and connecting materials are also placed between the panel sections 12 on both sides in the wall thickness direction of the earthquake-resistant wall 1 to connect the panel sections 12 together.

[0026] The earthquake-resistant wall 1 is constructed by erecting the base 11 on the foundation 2 and fixing it to its upper surface, then providing the panel sections 12 on both sides of the wall thickness direction of the earthquake-resistant wall 1 on the base 11, and then filling concrete Con between the panel sections 12 and inside the base 11. The panel sections 12 on both sides of the wall thickness direction may be erected separately on the base 11, or may be erected as a single unit connected by the above-mentioned ties. Alternatively, the internal space of the base 11 may be filled with concrete Con before installing the panel sections 12, and then the internal space between the panel sections 12 on both sides of the wall thickness direction may be filled with concrete Con after installing the panel sections 12.

[0027] Fig. 3 is a perspective view showing the base 11 before the panel portion 12 is provided. Fig. 4 is a cross-sectional view of the base 11 similar to Fig. 2, and Fig. 5 is a view of the base 11 as seen from above.

[0028] The side plates 111 and the bottom plate 112 are strip-shaped plate materials made of steel. The bottom plate 112 is arranged along the extension direction of the earthquake-resistant wall 1 with its plate surface oriented horizontally. The side plates 111 are fixed to the outer ends of the upper surface of the bottom plate 112 and are arranged along the extension direction of the earthquake-resistant wall 1 with their plate surface oriented vertically. In Figure 5, the extension direction of the earthquake-resistant wall 1 corresponds to the up-down direction. The side plates 111 and the bottom plate 112 are arranged in an L-shape in a vertical cross section of the earthquake-resistant wall 1 in the wall thickness direction.

[0029] The tie plate 113 is made of steel and has a rectangular plate body 1131 with flanges 1132 attached to it. The tie plate 113 is arranged along the wall thickness direction of the shear wall 1 with the plate surface of the plate body 1131 oriented vertically, and both ends of the tie plate 113 are fixed to the side plates 111 on both sides of the wall thickness direction of the shear wall 1. The flanges 1132 are horizontal plates arranged above and below the plate body 1131 along the wall thickness direction of the shear wall 1. Multiple tie plates 113 are arranged at intervals in the extension direction of the shear wall 1.

[0030] At the upper end of the side plate 111, an angle iron 114 extending in the extension direction of the earthquake-resistant wall 1 is provided on the inner surface of the side plate 111. The angle iron 114 functions as a reinforcing material for the side plate 111 and can also be used to attach the panel portion 12. That is, the panel portion 12 can be fixed onto the base 11 by vertically fastening the angle iron 114 of the base 11 to the angle iron 122 (see FIG. 2) at the bottom of the panel body 121 of the panel portion 12 using fasteners (not shown) such as bolts.

[0031] In addition, vertical angle members 115 are also provided on the inner surface of the side plate 111 at both ends in the longitudinal direction (extension direction of the earthquake-resistant wall 1) of the side plate 111. Note that the base 11 on the front side of Figure 3 is shown up to the middle of the longitudinal direction of the side plate 111, and the angle members 115 at the end of the front side of the side plate 111 are not shown. This is the same as in Figure 1.

[0032] In this embodiment, multiple bases 11 are arranged side by side in the extension direction of the earthquake-resistant wall 1, and adjacent bases 11 in the extension direction are joined by welding their side plates 111 together from the outside. Reference numeral 13 indicates this weld. In this embodiment, adjacent panel portions 12 (panel bodies 121) in the extension direction of the earthquake-resistant wall 1 are also joined by welding together from the outside. Similarly, the bases 11 (side plates 111) and the panel portions 12 (panel bodies 121) are also joined by welding together from the outside. Reference numeral 14 in FIG. 1 indicates the former weld, and reference numeral 15 indicates the latter weld.

[0033] As described above, in this embodiment, when constructing the earthquake-resistant wall 1 in which concrete Con is filled between the steel panel portions 12, the anchoring structure to the foundation 2 is such that the anchor bolts 21 are passed through the bottom plate 112 provided only on the inside of the earthquake-resistant wall 1, and the nuts 22 are fastened to the portions of the anchor bolts 21 that protrude from the bottom plate 112. This prevents the nuts 22 and the like from being placed on the outside of the earthquake-resistant wall 1, improving accessibility near the earthquake-resistant wall 1 and making it easier to place equipment and the like near the earthquake-resistant wall 1.

[0034] Furthermore, the earthquake-resistant wall 1 of this embodiment is configured such that a small, easy-to-handle base 11 is fixed onto the foundation 2 and the panel portion 12 is provided on the base 11, thereby eliminating the need to fix the large panel portion 12, which occupies most of the earthquake-resistant wall 1, directly to the foundation 2, and making it easy to construct even a large-scale earthquake-resistant wall 1. Furthermore, the nuts 22 can be tightened by inserting a hand or tool from above the base 11 once the base 11 of the earthquake-resistant wall 1 has been placed on the foundation 2, making the work easier.

[0035] In addition, in this embodiment, the side plates 111 on both sides of the base 11 are connected by tie plates 113, thereby improving the strength of the base 11 against bending in the wall thickness direction of the earthquake-resistant wall 1.

[0036] As described above, the angle members 114 of the base 11 function as reinforcing members for the side plates 111 and can also be used to attach the panel portion 12 .

[0037] The bottom plates 112 are arranged in pairs on both sides of the wall thickness of the earthquake-resistant wall 1, and a gap is created between the bottom plates 112, making the base 11 lighter and easier to handle. The concrete Con of the earthquake-resistant wall 1 is filled into the gap, improving the unity of the base 11 and the concrete Con.

[0038] However, the present invention is not limited to the above embodiment. For example, in this embodiment, the integral base 11 having the side plates 111 and bottom plate 112 on both sides in the wall thickness direction of the shear wall 1 is erected and fixed on the foundation 2. However, the side plates 111 and bottom plate 112 on both sides in the wall thickness direction of the shear wall 1 may be erected and fixed separately on the foundation 2, and then the side plates 111 on both sides in the wall thickness direction may be connected by the tie plates 113. Alternatively, a unit formed by integrating the side plate 111, bottom plate 112, and part of the length of the tie plate 113 on one side in the wall thickness direction and a unit formed by integrating the side plate 111, bottom plate 112, and remaining length of the tie plate 113 on the other side in the wall thickness direction may be erected and fixed separately on the foundation 2, and then the tie plates 113 of both units may be connected together using bolts and nuts.

[0039] The base 11 may be installed with a gap of about 100 mm from the upper surface of the foundation 2, and then the gap may be filled with a filler such as mortar. This allows for high installation accuracy.

[0040] Furthermore, the shape and configuration of the base 11 are not limited to those described above, as long as the bottom plate 112 through which the anchor bolts 21 pass is located at a position that abuts the inside of the shear wall 1, not the outside of the shear wall 1. Furthermore, if the angle irons 114 of the base 11 become a hindrance, the angle irons 114 can be omitted or replaced with flat steel or channel steel. Furthermore, in this embodiment, the bases 11 adjacent to each other in the extension direction of the shear wall 1 are joined by welding, but they may also be joined by bolts or the like instead of welding. The same applies to the joining of the base 11 and the panel portion 12, and the joining of the panel portions 12 together.

[0041] Furthermore, the configuration of the shear wall 1 is not limited to the above. For example, the base 11 may be omitted, and the panel 12 may be erected in an L-shape directly on the bottom plate 112. The spacing between the panel 12 on both sides of the shear wall 1 in the wall thickness direction and the thickness of the panel body 121 may also be determined as appropriate. Furthermore, the panel 12 of the shear wall 1 may be raised a predetermined height (e.g., approximately 1000 mm) above the slab of the upper floor, and this may be used as a base. The panel 12 may then be erected on top of this base, and the shear wall 1 may be constructed on the slab of the upper floor using the same construction method as described above. Furthermore, although the shear wall 1 is constructed in this embodiment, this embodiment can also be applied when constructing other types of walls.

[0042] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to these examples. It is clear that those skilled in the art can conceive of various modifications or alterations within the scope of the technical ideas disclosed herein, and it is understood that these modifications also fall within the technical scope of the present invention.

[0043] 1: Earthquake-resistant wall 2: Foundation 11: Base 12: Panel 21: Anchor bolt 22: Nut 111: Side plate 112: Bottom plate 113: Tie plate 114, 115, 122: Angle iron

Claims

1. A wall constructed on a foundation, the wall having a structure in which concrete is filled between steel panel sections provided on both sides of the wall in the wall thickness direction, the wall being fixed to the foundation by inserting anchor bolts protruding upward from the foundation into holes in a bottom plate provided on the inside of the wall so that they do not protrude outside the wall, and tightening nuts onto the parts of the anchor bolts protruding from the bottom plate.

2. The wall according to claim 1, characterized in that the panel sections are provided on a box-shaped base made of steel, the concrete is filled between the panel sections and inside the base, the base is smaller in height than the panel sections, and the bottom plate is provided on the base.

3. A wall body according to claim 2, characterized in that the base has a pair of side plates on both sides of the wall body in the wall thickness direction, and the pair of side plates are connected by a connecting plate arranged in the wall thickness direction of the wall body with the plate surface in the vertical direction.

4. A wall according to claim 3, characterized in that angle members extending in the direction of extension of said wall are fixed to the inner surfaces of the upper ends of said side plates.

5. A wall body according to claim 2, wherein a pair of said bottom plates are arranged on both sides of said wall body in the wall thickness direction.

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