WO2025173278A1 - Wall body - Google Patents

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

The present invention relates to walls such as earthquake-resistant walls.

Patent documents 1-3 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, with concrete 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.

Japanese Patent Application Publication No. 7-54425 Japanese Patent Application Laid-Open No. 2022-131243 Japanese Patent Application Laid-Open No. 2022-131245

Such walls are often large, and require anchor bolts embedded in the foundation to secure them to the foundation and ensure resistance to pull-out. A common anchoring structure involves erecting the panel on a base plate in an upside-down T-shape, with the upper ends of the anchor bolts protruding from the foundation passing through holes in the base plate on both the inside and outside of the wall, and then tightening nuts on the parts of the anchor bolts protruding from the base plate.

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

The present invention was made in consideration of the above problems, and aims to provide a wall or the like that takes into consideration factors such as accessibility near the wall and the placement of equipment.

The present invention, which solves the above-mentioned problems, is a wall that is built on a foundation and has a configuration in which concrete is filled between steel panel sections that are provided on both sides of the wall in the wall thickness direction, and the wall 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 so that they do not protrude outside the wall, and tightening nuts onto the parts of the anchor bolts that protrude from the bottom plate.

In this invention, when constructing a wall with concrete filled between steel panel sections, the anchoring structure to the foundation is achieved by passing anchor bolts through a bottom plate installed only on the inside of the wall, and fastening nuts to the anchor bolts' protruding parts 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 and other facilities near the wall.

The wall has the panel section mounted on a box-shaped base formed from 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 preferably mounted on the base.
In this way, by fixing a small, easy-to-handle base to the foundation and then placing the panel on top of the base, it is not necessary to fix the large panel, which takes up most of the wall, directly to the foundation, making it easy to build even large-scale walls. Furthermore, the work of tightening the nuts can be done by inserting your hand or tool from above the base once the wall base is placed on the foundation, making the work easier.

It is desirable that the base portion has a pair of side plates on both sides of the wall body in the wall thickness direction, and that the pair of side plates be connected by a connecting plate arranged in the wall thickness direction of the wall body with the plate surface vertical.
This improves the strength of the base against bending in the wall thickness direction of the wall body.

It is also desirable that an angle member extending in the extension direction of the wall body be fixed to the inner surface of the upper end of the side plate.
The angle members function as reinforcement members for the side panels and can also be used to attach the panel sections.

It is also desirable that a pair of the bottom plates be disposed on both sides of the wall body 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.

This invention makes it possible to provide a wall that takes into consideration factors such as accessibility near the wall and the placement of equipment.

FIG. FIG. 2 is a diagram showing a cross section near the base 11 of the earthquake-resistant wall 1. FIG. 2 is a perspective view showing the base 11 before the panel portion 12 is provided. FIG. FIG.

Below, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a shear wall 1 according to an embodiment of the wall of the present invention. The shear wall 1 is a wall erected on a foundation 2.

The foundation 2 is a reinforced concrete member, within which reinforcing bars (not shown) and anchor bolts 21 (see Figure 2, etc.), described below, are embedded.

The earthquake-resistant wall 1 has a base 11 fixed to the top surface of the foundation 2 and a panel portion 12 provided on top of the base 11, with 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.

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

Figure 2 shows a cross section near the base 11 of the earthquake-resistant wall 1, taken along a vertical cross section along the wall thickness direction of the earthquake-resistant wall 1.

As mentioned above, anchor bolts 21 are buried inside the foundation 2, with their upper ends protruding upward from the top surface of the foundation 2. Multiple 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 direction normal to the page.

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

The bottom plate 112 has multiple 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 each hole. By tightening nuts 22 onto the protruding parts 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. Note that reference numeral 23 denotes a washer used in conjunction with the nuts 22.

The panel portion 12 is a plate-shaped member made of steel, and is configured with angle bars 122 attached to the inner surface of a rectangular plate-shaped panel body 121. The angle bars 122 are arranged along the four sides of the panel body 121 and function as reinforcing materials to maintain the shape of the panel body 121. The angle bars 122 also function as protective materials to prevent damage to the peripheral edges of the panel body 121.

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

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

Figure 3 is a perspective view showing the base 11 before the panel portion 12 is provided. Figure 4 is a cross-sectional view of the base 11 similar to Figure 2, and Figure 5 is a top view of the base 11.

The side plates 111 and bottom plate 112 are strip-shaped plate materials made from steel plates. 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 end of the top surface of the bottom plate 112, and are arranged along the extension direction of the earthquake-resistant wall 1, with its 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 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.

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

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 attached to 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 to the base portion 11 by fastening the angle iron 114 of the base portion 11 and the angle iron 122 (see Figure 2) at the bottom of the panel body 121 of the panel portion 12 together using fasteners (not shown) such as bolts.

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

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 panel portions 12 (panel bodies 121) are also joined by welding together from the outside. Reference numeral 14 in Figure 1 indicates the former weld, and reference numeral 15 indicates the latter weld.

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

Furthermore, the earthquake-resistant wall 1 of this embodiment is configured by fixing a small, easy-to-handle base 11 onto the foundation 2, and then providing a panel portion 12 on top of the base 11. This eliminates the need to fix the large panel portion 12, which makes up the majority of the earthquake-resistant wall 1, directly to the foundation 2, 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.

In addition, in this embodiment, the side plates 111 on both sides of the base 11 are connected with tie plates 113, thereby improving the resistance of the base 11 to bending in the wall thickness direction of the earthquake-resistant wall 1.

As mentioned above, the angle members 114 of the base 11 function as reinforcement members for the side panels 111 and can also be used to attach the panel portion 12.

Furthermore, a pair of bottom plates 112 are arranged on both sides of the earthquake-resistant wall 1 in the wall thickness direction, and a gap is created between the two bottom plates 112, making the base 11 lighter and easier to handle. Furthermore, the gap is filled with the concrete Con of the earthquake-resistant wall 1, improving the integrity of the base 11 and the concrete Con.

However, the present invention is not limited to the above embodiments. For example, in this embodiment, the integrated 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 tie plates 113. Furthermore, a unit in which 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 are integrated, and a unit in which the side plate 111, bottom plate 112, and the remaining length of the tie plate 113 on the other side in the wall thickness direction are integrated, 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.

Furthermore, the base 11 may be installed with a gap of approximately 100 mm from the top surface of the foundation 2, and then this gap may be filled with a filler such as mortar. This allows for high installation precision.

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 earthquake-resistant wall 1, not the outside of the earthquake-resistant wall 1. Furthermore, if the angle irons 114 of the base 11 become a hindrance, the angle irons 114 can be omitted or changed to flat steel or channel steel. Furthermore, in this embodiment, adjacent bases 11 in the extension direction of the earthquake-resistant wall 1 are joined by welding, but joining with bolts or the like may also be used instead of welding. The same applies to the joining of the base 11 and panel portion 12, and the joining of the panel portions 12 together.

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 portion 12 may be erected in an L-shape directly on the bottom plate 112. The spacing between the panel portions 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 portion 12 of the shear wall 1 may be raised a predetermined height (for example, approximately 1000 mm) above the slab of the upper floor, and this may be used as a base, on which the panel portion 12 is erected, and the shear wall 1 may be constructed on the slab of the upper floor using a construction method similar to that described above. Furthermore, although a shear wall 1 is constructed in this embodiment, this embodiment can also be applied when constructing other wall structures.

The above describes preferred embodiments of the present invention with reference to the accompanying drawings, but the present invention is not limited to these examples. It is clear that those skilled in the art will be able to come up with various modifications and alterations within the scope of the technical ideas disclosed in this application, and it is understood that these also naturally fall within the technical scope of the present invention.

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

Claims (5)

A wall body provided on a foundation,
The wall has a structure in which concrete is filled between steel panel portions provided on both sides of the wall in the wall thickness direction,
A wall body characterized in that the wall body is fixed onto the foundation by inserting an anchor bolt protruding upward from the foundation into a hole in a bottom plate provided on the inside of the wall body so that the anchor bolt does not protrude outside the wall body, and tightening a nut on the part of the anchor bolt protruding from the bottom plate. The wall body has the panel portion provided on a box-shaped base portion formed of a steel material,
The concrete is filled between the panel portions and inside the base portion,
the base portion is smaller in height than the panel portion;
2. The wall according to claim 1, wherein the bottom plate is provided on the base. the base portion has a pair of side plates on both sides of the wall body in a wall thickness direction,
3. The wall body according to claim 2, wherein the pair of side plates are connected by a connecting plate disposed in the wall thickness direction of the wall body with the plate surface in the vertical direction. A wall as described in claim 3, characterized in that an angle iron extending in the extension direction of the wall is fixed to the inner surface of the upper end of the side panel. A wall body as described in claim 2, characterized in that a pair of the bottom plates are arranged on both sides of the wall body in the wall thickness direction.