JP2006200274A - Ground sill of corner part for earthquake-resistant building for outer wall protection - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ground sill of a corner part of an earthquake-resistant building for outer wall protection exhibiting firm anti-earthquake performance in crossing horizontal two directions and protecting an outer wall panel by yielding prior to the outer wall panel in the horizontal two directions and realizing it in a simple structure advantageously in cost. <P>SOLUTION: Upper and lower horizontal plate parts 7, 8 having a L shape seen in a plan view are connected by a plurality of vertical plate parts 9, 10 made of steel such as dead soft steel in an outer wall corner part. A partial vertical plate 9 is directed in the direction along one outer wall surface and the rest vertical plate 10 is directed in the direction along the other outer wall surface, and when horizontal force directed in the direction along the outer wall surface is applied, the vertical plate directed to the direction is shear-yielded prior to the outer wall panel. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a corner base structure for an earthquake-resistant building for protecting an outer wall.

  Adopting a structure that yields the foundation in advance in order to prevent cracks in the face panel of the outer wall panel and yielding of the strength elements such as braces due to the horizontal force due to earthquake etc. in the earthquake-resistant structure In this case, the outer wall corner portion is a portion where one outer wall panel and the other outer wall panel sandwiching the corner portion are installed in an orthogonal proximity state. It must be able to exhibit strong seismic performance in any direction, but it should be able to yield prior to good condition in relation to the protection of the outer wall panel in the two horizontal directions.

  In view of the above demands, the present invention can exhibit strong seismic performance in two orthogonal horizontal directions, and protect the outer wall panel by yielding prior to the outer wall panel in the two horizontal directions. It is another object of the present invention to provide a corner base structure for an earthquake-resistant building for protecting an outer wall, which can be realized in a cost-effective manner with a simple structure.

In the outer wall corner portion, the lower horizontal plate portion in plan view L is connected to the foundation side, and the upper horizontal plate portion in plan view L is connected to each of the two outer wall panels sandwiching the corner portion. These upper and lower horizontal plate portions are connected by a plurality of steel vertical plate portions interposed therebetween,
Part of the vertical plate is directed along the outer wall of one outer wall panel sandwiching the corner, and the other vertical plate is oriented along the outer wall of the other outer wall panel sandwiching the corner. Directed,
When a horizontal force directed in the direction along the outer wall surface acts on one outer wall panel sandwiching the corner portion, the vertical plate portion facing the direction is configured to shear yield before the one outer wall panel. ,
When a horizontal force directed in the direction along the outer wall surface acts on the other outer wall panel sandwiching the corner portion, the vertical plate portion facing that direction is sheared and yielded prior to the other outer wall panel. It is solved by a corner base structure for seismic building for protecting the outer wall.

  In this corner base structure, a part of the plurality of vertical plate portions is directed in a direction along the outer wall surface of one outer wall panel sandwiching the corner portion, and the remaining vertical plate portions are connected to the corner portions. Since it is directed in the direction along the outer wall surface of the other outer wall panel that sandwiches the wall, the shear strength in the in-plane direction of the vertical plate portion can exert a strong seismic performance in two orthogonal horizontal directions. And for a larger horizontal force, in two horizontal directions perpendicular to each other, the vertical plate portion may shear in the in-plane direction before the outer wall panel to protect each outer wall panel sandwiching the corner portion. it can.

  Moreover, ensuring the seismic performance and protecting each outer wall panel sandwiching the corner is realized by the shear strength in the in-plane direction of the vertical plate made of steel and the shear yield in the in-plane direction. They can be realized cost-effectively with a simple structure.

  In addition, since all the vertical plate parts are connected to the upper and lower horizontal plate parts of the L shape in plan view, only one corner base component is required, and the foundation can be easily constructed in the corner part. In addition, since both outer wall panels sandwiching the corner portion are connected and integrated by the L-shaped upper horizontal plate portion, the arrangement of the vertical plate portions between the upper and lower horizontal plate portions can be freely determined.

In the corner portion base structure, a vertical plate portion facing the direction along the outer wall surface of the other outer wall panel is provided on one outer wall panel side,
A vertical plate portion facing the direction along the outer wall surface of the one outer wall panel may be provided on the other outer wall panel side.

  In this structure, by combining each vertical plate portion with the upper and lower horizontal plate portions of the L shape in plan view, it is possible to exert a firm earthquake resistance performance in two orthogonal horizontal directions, Each outer wall panel sandwiching the corner portion can be protected by the preceding yielding action.

  In addition, since the vertical plate portion is provided in the corner portion so as to face the direction perpendicular to the outer wall surface of the outer wall panel in the region immediately below each outer wall panel, the outer wall panel can be stably supported on the base. In addition, it is possible to easily access the connecting portion between the lower horizontal plate portion and the foundation and the connecting portion between the upper horizontal plate portion and the outer wall panel through the upper and lower horizontal plate portions. Construction and subsequent replacement can be performed easily.

  Since the corner base structure of the present invention is as described above, it can exhibit strong seismic performance in two orthogonal horizontal directions and yield before the outer wall panel in the two horizontal directions. Thus, the outer wall panel can be protected, and it can be realized with a simple structure and in an advantageous cost.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  In the embodiment shown in FIG. 1, 1 is a foundation, 2 and 3 are outer wall panels sandwiching a corner portion, 4 and 4 are general bases, and 5 is a corner base.

  The foundation 1 is made of a concrete cloth foundation, and the outer wall panels 2 and 3 are made by attaching panel frames 2a and 3a to the back side of an outer wall surface material such as a concrete system (not shown).

  The general part base 4 is composed of a piece-like base, and as shown in FIGS. 1 and 3, the upper and lower horizontal plate parts 4a and 4b having a plan view shape are interposed between the horizontal plate parts 4a and 4b. The four vertical plate portions 4c, 4c, 4c, 4d are joined and integrated to each of the horizontal plate portions 4a, 4b by welding or the like, and three of the vertical plate portions 4c... The third vertical plate portion 4d is directed in a direction orthogonal to the outer wall surface of (3) and arranged in parallel at a predetermined interval, and the remaining one vertical plate portion 4d is directed in a direction along the outer wall surface of the outer wall panel 2 (3). And provided on one side of the three vertical plate portions 4c.

  Further, the upper and lower horizontal plate portions 4a and 4b are provided with through holes 6 between the parallel vertical plates 4c, respectively. The general base 4 uses the through holes 6 to make the foundation 1 Are connected to the panel frame 2a (3a) of the outer wall panel 2 (3) by bolts.

  The vertical plate portion 4d provided on one side of the three vertical plate portions 4c arranged in parallel is made of extremely mild steel or the like, and, as shown in FIG. 4 (a), one outer wall sandwiching the corner portion When a horizontal force directed in the direction along the outer wall surface is applied to the panel 2, the vertical plate portion 4d is sheared and yielded prior to the one outer wall panel 2 as shown by diagonal lines. 4 (b), when a horizontal force directed in the direction along the outer wall surface is applied to the other outer wall panel 3 sandwiching the corner portion, the vertical plate portion 4d is also connected to the other outer wall panel 3 as shown by diagonal lines. The outer wall panel 3 is sheared and yielded in advance.

  Depending on the contents of protection of the outer wall panel, all of the vertical plate portions 4c,..., 4d in the general base 4 may be made of ultra mild steel or the like.

  As shown in FIGS. 1 and 2, the corner base 5 is an L-shaped top and bottom horizontal plane that protrudes from the lower surface side of each of the outer wall panels 2 and 3 sandwiching the corner at the corner of the foundation 1. Plate portions 7 and 8 and four vertical plate portions 9 made of ultra-soft steel interposed between the horizontal plate portions 7 and 8 and joined and integrated to each of the horizontal plate portions 7 and 8 by welding or the like. 9, 10, and 10.

  Of the four vertical plate portions 9, 9, 10, 10, two vertical plate portions 9, 9 are directed in a direction along the outer wall surface of one outer wall panel 2 across the corner portion, and the other The other two vertical plate portions 10 and 10 are provided so as to be arranged in parallel with a predetermined interval between the side portions 7a and 8a on the side of the outer wall panel 3, and the remaining two vertical plate portions 10 and 10 sandwich the corner portion. The side walls 7b and 8b on the side of the one outer wall panel 2 are arranged in parallel with a predetermined interval.

  The upper and lower horizontal plate portions 7 and 8 are arranged between the vertical plates 9 and 9 arranged side by side on the side of one side 7a and 8a and the other side arranged on the side of the other side 7b and 8b. Through holes 6 are provided between the vertical plate portions 10 and 10 and at three locations between both sides, and the corner base 5 is anchor bolts to the foundation 1 using these through holes 6. Moreover, it connects with each of the panel frames 2a and 3a of both the outer wall panels 2 and 3 which pinch | interpose a corner part with a volt | bolt, and as shown in FIG. When a horizontal force directed in the direction along the outer wall surface is applied, as shown by the oblique lines, the vertical plate portions 9 and 9 directed in that direction are shear yielded prior to the one outer wall panel 2 and It is shown in Fig. 4 (b) In addition, when a horizontal force directed in the direction along the outer wall surface acts on the other outer wall panel 3 sandwiching the corner portion, the vertical plate portions 10 and 10 facing in the same direction are indicated by the diagonal lines, as shown in FIG. Shearing yields prior to the outer wall panel 3.

  In addition, the through-hole 6 between the both side portions 8a and 8b in the upper horizontal plate portion 8 is used for connecting a corner portion outer wall material (not shown).

  In the corner portion base structure, two vertical plate portions 9, 9 out of the four vertical plate portions 9, 9, 10, 10 are directed toward the outer wall surface of one outer wall panel 2 sandwiching the corner portion, Since the remaining two vertical plate portions 10 and 10 are directed toward the outer wall surface of the other outer wall panel 3 sandwiching the corner portion, the shear strength in the in-plane direction of the vertical plate portions 9, 9, 10, and 10 is As shown in FIGS. 4 (a) and (b), in the horizontal two directions perpendicular to each other, as shown in FIG. The vertical plate portions 9, 9, 10, and 10 can shear and yield in the in-plane direction ahead of the outer wall panels 2 and 3, and thus protect the outer wall panels 2 and 3 sandwiching the corner portion firmly. That.

  Specifically, when the outer wall surface material of the outer wall panel 2 (3) is a concrete surface material, the vertical plate portions 9 ... (10 ...) yield before the surface material is cracked or cracked. If the outer wall panels 2 and 3 are equipped with a strength element such as braces, the vertical plate portion 9 ... (10 ...) yields and is replaced before the yield strength element yields. The outer wall panels 2 and 3 sandwiching the corner portion are protected by protecting difficult braces and the like.

  Moreover, ensuring the seismic performance and protecting each of the outer wall panels 2 and 3 sandwiching the corner portion is achieved by the shear strength in the in-plane direction of the steel vertical plate portions 9, 10, and the shear yield in the in-plane direction. Therefore, they can be realized in a cost-effective manner with a simple structure.

  Further, since all the vertical plate portions 9 ..., 10 ... are connected to the upper and lower horizontal plate portions 7, 8 in plan view, only one corner base component is required. Construction can be performed easily, and the outer wall panels 2 and 3 sandwiching the corner portion are connected and integrated by the L-shaped upper horizontal plate portion 8, so that the space between the upper and lower horizontal plate portions 7 and 8 is The arrangement of the vertical plate portions 9 and 10 can be freely determined. Therefore, as in the present embodiment, the vertical plate portions 9, 10,... Are provided so as to face the direction orthogonal to the outer wall surfaces of the outer wall panels 2, 3 in the region immediately below the outer wall panels 2, 3. The outer wall panels 2 and 3 sandwiching the corner portion can be stably supported by the corner base 5, and the connecting portion between the lower horizontal plate portion 7 and the foundation 1, the upper horizontal plate portion 8, Access to the connecting part with the outer wall panels 2 and 3 can be easily performed between the upper and lower horizontal plate parts 7 and 8, and construction of the corner base 5 at the time of new construction and subsequent replacement can be easily performed. it can.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the general base is shown as a piece base, but may be a long base. In the above embodiment, the case where the vertical plate portion is made of ultra mild steel or the like is shown. However, the present invention is not limited to this, and any material that yields prior to the outer wall panel may be used. In addition, the yield of the vertical plate portion is not limited to the cracks and cracks of the face material of the outer wall panel, which is performed prior to the yield of the brace, depending on the content of protection of the outer wall panel, Anything can be used as long as it is performed in advance. Moreover, there is no restriction | limiting also about the number of vertical plate parts.

It is a perspective view which shows the foundation structure of embodiment. FIG. 2A is a perspective view, FIG. 2B is an exploded perspective view, and FIG. 2C is a plan view showing the relationship between the vertical plate portion of the base and the outer wall panel. FIG. 1A is a perspective view, FIG. 2B is an exploded perspective view, and FIG. 3C is a plan view showing a relationship between a vertical plate portion of the base and an outer wall panel. FIG. 1 (a) and FIG. 2 (b) are plan views showing the operating states of the respective bases in the corner portion and the general portion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Foundation 2, 3 ... Outer wall panel 5 ... Corner base 7 ... Lower horizontal plate part 8 ... Upper horizontal plate part 9, 10 ... Vertical plate part

Claims (2)

In the outer wall corner portion, the L-shaped lower horizontal plate portion in plan view is connected to the foundation side, and the L-shaped upper horizontal plate portion in plan view is connected to each of the two outer wall panels sandwiching the corner portion. The plate portions are connected by a plurality of vertical plate portions made of steel interposed therebetween,
Part of the vertical plate is directed along the outer wall of one outer wall panel sandwiching the corner, and the other vertical plate is oriented along the outer wall of the other outer wall panel sandwiching the corner. Directed,
When a horizontal force directed in the direction along the outer wall surface acts on one outer wall panel sandwiching the corner portion, the vertical plate portion facing the direction is configured to shear yield before the one outer wall panel. ,
When a horizontal force directed in the direction along the outer wall surface acts on the other outer wall panel sandwiching the corner portion, the vertical plate portion facing that direction is sheared and yielded prior to the other outer wall panel. Corner base structure for earthquake-resistant buildings for outer wall protection characterized by On the side of one outer wall panel, a vertical plate portion facing the direction along the outer wall surface of the other outer wall panel is provided,
The corner base structure for an earthquake resistant building for protecting an outer wall according to claim 1, wherein a vertical plate portion facing the outer wall surface of the one outer wall panel is provided on the side of the other outer wall panel. .

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