JP2020158985A - Wall panel mounting method, wall panel mounting structure, self-weight bearing metal fitting and building - Google Patents
Wall panel mounting method, wall panel mounting structure, self-weight bearing metal fitting and building Download PDFInfo
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Abstract
Description
本発明は、壁パネルの取付工法、取付構造体、自重受け金具および建物に関する。 The present invention relates to a wall panel mounting method, a mounting structure, a self-weight receiving metal fitting, and a building.
従来、このような分野の技術として、下記特許文献１に記載の壁パネル取付構造体が知られている。この取付構造体は、下段パネル上部に縦断面ト形の取付金具（自重受け金具）を取り付けたのち建て込み、ト形水平部上面を上段パネルの底面の高さになるよう高さ調節し、上部突出片の両脇を下地鋼材（定規アングル）の鉛直部に溶接固定する。 Conventionally, as a technique in such a field, the wall panel mounting structure described in Patent Document 1 below is known. This mounting structure is built after mounting a vertical cross-section G-shaped mounting bracket (self-weight receiving bracket) on the upper part of the lower panel, and the height of the upper surface of the G-shaped horizontal part is adjusted to the height of the bottom surface of the upper panel. Both sides of the upper protruding piece are welded and fixed to the vertical part of the base steel material (ruler angle).
しかしながら、上記の取付構造体では、つぎのような問題があった。
上部突出片の両脇を溶接する場合、立向き溶接となるため作業が難しく、熟練の技量が必要であった。
However, the above mounting structure has the following problems.
When welding both sides of the upper protruding piece, the work is difficult because it is an upright welding, and skill is required.
また、負風圧作用時には、自重受け金具に応力が作用する。この場合、図８に示すように、自重受け金具が取り付けられた下地鋼材の鉛直部の上端部が支点となり、溶接部の最下部に反力Ｒがかかる。このように、溶接部の最下部に最も負担がかかるが、溶接部の断面積（溶接断面積）が小さいと、そこに作用する応力度は大きくなる。例えば立向き溶接の場合、溶接断面積が大きくとれず、溶接部最下部での溶接断面積は、例えば、３ｍｍ×３ｍｍの２等辺三角形程度と小さい。また、溶接位置が高く、支点（下地鋼材の鉛直部の上端部）に対して、溶接部最下部が比較的高い位置にある場合も、そこに作用する応力度は大きくなる。 Further, when a negative wind pressure is applied, stress acts on the self-weight receiving metal fitting. In this case, as shown in FIG. 8, the upper end of the vertical portion of the base steel material to which the self-weight receiving metal fitting is attached serves as a fulcrum, and the reaction force R is applied to the lowermost portion of the welded portion. As described above, the lowermost portion of the welded portion is most burdened, but when the cross section of the welded portion (welded cross section) is small, the degree of stress acting on the cross section becomes large. For example, in the case of vertical welding, the weld cross section cannot be large, and the weld cross section at the bottom of the weld is as small as, for example, an isosceles triangle of 3 mm × 3 mm. Further, even when the welding position is high and the lowermost portion of the welded portion is at a relatively high position with respect to the fulcrum (the upper end portion of the vertical portion of the base steel material), the degree of stress acting on the welded portion is large.
ここで、溶接最下部に作用する応力度は、下記式で定義する。
溶接最下部に作用する応力度［Ｎ／ｍｍ２］＝反力Ｒ［Ｎ］÷溶接最下部溶接断面積Ａ［ｍｍ２］
また、反力Ｒ［Ｎ］＝パネル取付部荷重Ｔ［Ｎ］×距離ａ［ｍｍ］÷距離ｂ［ｍｍ］である。
Here, the degree of stress acting on the lowermost part of the weld is defined by the following formula.
Stress acting on the bottom of the weld [N / mm 2 ] = reaction force R [N] ÷ weld cross section at the bottom of the weld A [mm 2 ]
Further, the reaction force R [N] = the panel mounting portion load T [N] × the distance a [mm] ÷ the distance b [mm].
すなわち、最上部からの距離ｂが小さい（溶接位置が高い）ほど、また、溶接部最下部での溶接断面積Ａが小さいほど、作用する応力度は大きい。したがって、従来の方法では、溶接部に作用する応力度が大きくなり、溶接部の負担が大きかった。 That is, the smaller the distance b from the uppermost portion (higher welding position) and the smaller the welding cross section A at the lowermost portion of the welded portion, the greater the degree of stress acting. Therefore, in the conventional method, the degree of stress acting on the welded portion is large, and the burden on the welded portion is large.
本発明は、このような従来の実情に鑑みて提案されたものであり、本発明の目的は、負風圧力作用時の、自重受け金具の溶接部の負担（作用応力度）を軽減するとともに、溶接作業を容易化した壁パネルの取付工法、取付構造体、自重受け金具および建物を提供することにある。 The present invention has been proposed in view of such conventional circumstances, and an object of the present invention is to reduce the burden (acting stress degree) on the welded portion of the self-weight receiving metal fitting when a negative wind pressure is applied. The purpose of the present invention is to provide a wall panel mounting method, a mounting structure, a self-weight receiving metal fitting, and a building that facilitate welding work.
［１］
建物の梁（１０）の上面（１１）に固定された下地鋼材（２０）の鉛直部（２２）の屋外側の面に、上側壁パネル（１００Ａ）の重量を支持する自重受け金具（３０）を固定する、壁パネルの取付工法において、
前記自重受け金具（３０）は、金属板が折り曲げられてなり、上側壁パネル（１００Ａ）の下面を支持する水平部（３１）と、該水平部（３１）に対して略直交し上側に突出して設けられる上側突出部（３２）と、該水平部（３１）に対して下側に突出して設けられる下側突出部（３３）とが一体に形成されて断面略「ト」の字形状をなし、前記上側突出部（３２）の両側には、前記下側突出部（３３）側に向けて形成された略矩形状の凹部（３６）が設けられており、
前記自重受け金具（３０）を、前記水平部（３１）を屋外側へ向けて、前記上側突出部（３２）を前記下地鋼材（２０）の前記鉛直部（２２）の屋外側の面に当接させて固定する際に、少なくとも前記凹部（３６）の底部において溶接固定することを特徴とする、壁パネルの取付工法。
［２］
前記自重受け金具（３０）を前記下地鋼材（２０）に溶接固定する前に、前記水平部（３１）の上面を、予め決定されている前記上側壁パネル（１００Ａ）の底面の位置に略一致させる、［１］に記載の壁パネルの取付工法。
［３］
前記自重受け金具（３０）の下側突出部（３３）は、ボルトが挿通されるボルト孔（３４）を有し、下側突出部（３３）の屋外側の面を下側壁パネル（１００Ｂ）の屋内側の面上部に当接させて、
下側壁パネル（１００Ｂ）の屋内側の面上部に埋設された埋設アンカーに、該ボルト孔（３４）を介してボルト留めされる、［１］または［２］に記載の壁パネルの取付工法。
［４］
前記水平部（３１）の下側において、前記下側突出部（３３）と前記上側突出部（３２）との間には所定高さの段差部（３５）が設けられており、
前記段差部（３５）が前記梁（１０）の上面（１１）よりも上になるように、前記自重受け金具（３０）を配する、［１］から［３］のいずれかに記載の壁パネルの取付工法。
［５］
前記自重受け金具（３０）の前記凹部（３６）の幅が、該自重受け金具（３０）を構成する金属板の板厚の２倍以上である、［１］から［４］のいずれかに記載の壁パネルの取付工法。
［６］
前記自重受け金具（３０）の前記凹部（３６）の底部を、前記下側壁パネル（１００Ｂ）の屋内側の上端稜線から、俯角４５°の延長線（Ｌ１）以上、俯角１０°の延長線（Ｌ２）以下の位置となるように設ける、［３］から［５］のいずれかに記載の壁パネルの取付工法。
［７］
建物の梁（１０）の上面（１１）に固定された下地鋼材（２０）と、前記下地鋼材（２０）の鉛直部（２２）の屋外側の面に固定され、上側壁パネル（１００Ａ）の重量を支持する自重受け金具（３０）とを有する壁パネルの取付構造体（１）において、
前記自重受け金具（３０）は、金属板が折り曲げられてなり、上側壁パネル（１００Ａ）の下面を支持する水平部（３１）と、該水平部（３１）に対して略直交し上側に突出して設けられる上側突出部（３２）と、水平部（３１）に対して下側に突出して設けられる下側突出部（３３）とが一体に形成されて断面略「ト」の字形状をなし、前記上側突出部（３２）の両側には、前記下側突出部（３３）側に向けて形成された略矩形状の凹部（３６）が設けられており、
前記自重受け金具（３０）が、前記水平部（３１）を屋外側へ向けて、前記上側突出部（３２）を前記下地鋼材（２０）の前記鉛直部（２２）の屋外側の面に当接させた状態で、少なくとも前記凹部（３６）の底部において溶接固定されていることを特徴とする、壁パネルの取付構造体。
［８］
前記自重受け金具（３０）の下側突出部（３３）は、ボルトが挿通されるボルト孔（３４）を有し、下側突出部（３３）の屋外側の面を下側壁パネル（１００Ｂ）の屋内側の面上部に当接させて、
下側壁パネル（１００Ｂ）の屋内側の面上部に埋設された埋設アンカーに、該ボルト孔（３４）を介してボルト留めされている、［７］に記載の壁パネルの取付構造体。
［９］
［１］〜［６］のいずれかに記載の壁パネルの取付工法に用いられる自重受け金具であって、
前記自重受け金具（３０）は、金属板が折り曲げられてなり、上側壁パネル（１００Ａ）の下面を支持する水平部（３１）と、該水平部（３１）に対して略直交し上側に突出して設けられる上側突出部（３２）と、水平部（３１）に対して下側に突出して設けられる下側突出部（３３）とが一体に形成されて断面略「ト」の字形状をなし、前記上側突出部（３２）の両側には、前記下側突出部（３３）側に向けて形成された略矩形状の凹部（３６）が設けられており、用いられることを特徴とする、自重受け金具。
［１０］
［７］または[８]に記載の壁パネルの取付構造体を備えた、建物。
[1]
A self-weight receiving metal fitting (30) that supports the weight of the upper side wall panel (100A) on the outdoor side surface of the vertical portion (22) of the base steel material (20) fixed to the upper surface (11) of the beam (10) of the building. In the wall panel mounting method to fix
The self-weight receiving metal fitting (30) is formed by bending a metal plate, and is substantially orthogonal to a horizontal portion (31) that supports the lower surface of the upper side wall panel (100A) and projects upward from the horizontal portion (31). The upper protruding portion (32) provided in the above direction and the lower protruding portion (33) provided so as to project downward with respect to the horizontal portion (31) are integrally formed to form a substantially “G” shape in cross section. None, on both sides of the upper protruding portion (32), substantially rectangular recesses (36) formed toward the lower protruding portion (33) side are provided.
The self-weight receiving metal fitting (30) is brought into contact with the horizontal portion (31) toward the outdoor side and the upper protruding portion (32) against the outdoor side surface of the vertical portion (22) of the base steel material (20). A method for mounting a wall panel, which comprises welding and fixing at least at the bottom of the recess (36) when the walls are brought into contact with each other and fixed.
[2]
Before the self-weight receiving metal fitting (30) is welded and fixed to the base steel material (20), the upper surface of the horizontal portion (31) substantially coincides with the position of the lower surface of the upper side wall panel (100A) determined in advance. The wall panel mounting method according to [1].
[3]
The lower protrusion (33) of the self-weight receiving metal fitting (30) has a bolt hole (34) through which a bolt is inserted, and the outdoor side surface of the lower protrusion (33) is a lower side wall panel (100B). In contact with the upper part of the indoor side of the
The wall panel mounting method according to [1] or [2], wherein the wall panel is bolted to a buried anchor buried in the upper part of the indoor side surface of the lower side wall panel (100B) via the bolt hole (34).
[4]
On the lower side of the horizontal portion (31), a step portion (35) having a predetermined height is provided between the lower protruding portion (33) and the upper protruding portion (32).
The wall according to any one of [1] to [3], wherein the self-weight receiving metal fitting (30) is arranged so that the step portion (35) is above the upper surface (11) of the beam (10). Panel mounting method.
[5]
The width of the recess (36) of the self-weight receiving metal fitting (30) is at least twice the thickness of the metal plate constituting the self-weight receiving metal fitting (30), according to any one of [1] to [4]. The described wall panel mounting method.
[6]
The bottom of the recess (36) of the self-weight receiving metal fitting (30) is an extension line (L1) or more of a depression angle of 45 ° and an extension line of a depression angle of 10 ° from the upper end ridge line on the indoor side of the lower side wall panel (100B). L2) The wall panel mounting method according to any one of [3] to [5], which is provided so as to be at the following position.
[7]
The base steel material (20) fixed to the upper surface (11) of the beam (10) of the building and the base steel material (20) fixed to the outdoor side surface of the vertical portion (22) of the upper side wall panel (100A). In the wall panel mounting structure (1) having a self-weight receiving metal fitting (30) that supports the weight.
The self-weight receiving metal fitting (30) is formed by bending a metal plate, and is substantially orthogonal to a horizontal portion (31) that supports the lower surface of the upper side wall panel (100A) and projects upward from the horizontal portion (31). The upper protruding portion (32) provided in the above direction and the lower protruding portion (33) provided so as to project downward with respect to the horizontal portion (31) are integrally formed to form a substantially “G” shape in cross section. On both sides of the upper protrusion (32), substantially rectangular recesses (36) formed toward the lower protrusion (33) side are provided.
The self-weight receiving metal fitting (30) contacts the horizontal portion (31) toward the outdoor side and the upper protruding portion (32) against the outdoor side surface of the vertical portion (22) of the base steel material (20). A wall panel mounting structure characterized in that it is welded and fixed at least at the bottom of the recess (36) in a contacted state.
[8]
The lower protrusion (33) of the self-weight receiving metal fitting (30) has a bolt hole (34) through which a bolt is inserted, and the outdoor side surface of the lower protrusion (33) is a lower side wall panel (100B). In contact with the upper part of the indoor side of the
The wall panel mounting structure according to [7], which is bolted to a buried anchor embedded in the upper part of the indoor side surface of the lower side wall panel (100B) via the bolt hole (34).
[9]
A self-weight receiving metal fitting used in the wall panel mounting method according to any one of [1] to [6].
The self-weight receiving metal fitting (30) is formed by bending a metal plate, and projects upward at a horizontal portion (31) that supports the lower surface of the upper side wall panel (100A) and is substantially orthogonal to the horizontal portion (31). The upper protruding portion (32) provided in the above direction and the lower protruding portion (33) provided so as to project downward with respect to the horizontal portion (31) are integrally formed to form a substantially “G” shape in cross section. On both sides of the upper protruding portion (32), substantially rectangular recesses (36) formed toward the lower protruding portion (33) side are provided and are used. Self-weight receiving bracket.
[10]
A building comprising the wall panel mounting structure according to [7] or [8].
本発明によれば、負風圧力作用時の、自重受け金具の溶接部の負担（作用応力度）を軽減するとともに、自重受け金具の溶接作業を容易化した壁パネルの取付工法、取付構造体、自重受け金具および建物を提供することができる。 According to the present invention, a wall panel mounting method and a mounting structure that reduce the burden (actual stress degree) on the welded portion of the self-weight receiving metal fitting when a negative wind pressure is applied and facilitate the welding work of the self-weight receiving metal fitting. , Self-weight receiving brackets and buildings can be provided.
以下、本発明を実施するための実施の形態について詳細に説明する。
なお、以下の説明では、壁パネルとして外壁パネルを、建物躯体である梁に取り付ける場合を例に挙げて説明する。
Hereinafter, embodiments for carrying out the present invention will be described in detail.
In the following description, a case where the outer wall panel is attached to the beam which is the building frame as the wall panel will be described as an example.
図１は、本発明の壁パネルの取付構造体の一例を示す断面図であり、図２は、本発明の取付構造体に用いられる自重受け金具の一例を示す斜視図である。また、図５〜図７は、本発明の壁パネルの取付工法の一例を説明する図である。
なお、図では、図面左側を屋外側、図面右側を屋内側、図面上側を上側、図面下側を下側とする。
FIG. 1 is a cross-sectional view showing an example of a wall panel mounting structure of the present invention, and FIG. 2 is a perspective view showing an example of a self-weight receiving metal fitting used in the mounting structure of the present invention. Further, FIGS. 5 to 7 are views for explaining an example of the wall panel mounting method of the present invention.
In the drawing, the left side of the drawing is the outdoor side, the right side of the drawing is the indoor side, the upper side of the drawing is the upper side, and the lower side of the drawing is the lower side.
本発明の壁パネル１００の取付構造体１は、壁パネル１００（外壁パネル）と、壁パネル１００の屋内側に位置する建物の梁１０（建物躯体）と、梁１０の水平な上面１１に固定された下地鋼材２０と、下地鋼材２０の鉛直部（鉛直フランジ２２）の屋外側の面に固定され、上側壁パネル１００Ａの自重を該壁パネル１００の鉛直方向下方から受ける受け部（水平部３１）を有する断面略「ト」の字形の自重受け金具３０と、を備える。 The mounting structure 1 of the wall panel 100 of the present invention is fixed to the wall panel 100 (outer wall panel), the beam 10 (building frame) of the building located on the indoor side of the wall panel 100, and the horizontal upper surface 11 of the beam 10. The base steel material 20 is fixed to the outdoor side surface of the base steel material 20 and the vertical portion (vertical flange 22) of the base steel material 20, and the receiving portion (horizontal portion 31) that receives the weight of the upper side wall panel 100A from below in the vertical direction of the wall panel 100. ), And a self-weight receiving metal fitting 30 having a substantially “G” -shaped cross section.
壁パネル１００（１００Ａ、１００Ｂ）は、例えば発泡コンクリートパネルであり、ＡＬＣ（Autoclaved Lightweight aerated Concrete）パネルであることが好ましい。 The wall panel 100 (100A, 100B) is, for example, a foam concrete panel, and is preferably an ALC (Autoclaved Lightweight aerated Concrete) panel.
下地鋼材２０は、建物躯体である梁１０（横架材）に平行に延びる鋼製のアングル材（定規アングル）であり、梁１０の水平な上面１１に固定される水平フランジ２１と、水平フランジ２１の縁部から鉛直上方に延びる鉛直フランジ２２と、を有する、断面略Ｌ字形状の鋼材である。 The base steel material 20 is a steel angle material (regular angle) extending parallel to the beam 10 (horizontal member) which is the building frame, and has a horizontal flange 21 fixed to the horizontal upper surface 11 of the beam 10 and a horizontal flange. A steel material having a substantially L-shaped cross section having a vertical flange 22 extending vertically upward from the edge of 21.
水平フランジ２１が梁１０の上面１１に溶接またはボルト締めされることで、下地鋼材２０が梁１０に固定されている。鉛直フランジ２２は、梁１０の上面１１から僅かに屋外側にはみ出した位置にある。この鉛直フランジ２２のはみ出し量が、下地鋼材２０の設置時に調整されることで、壁パネル１００の設置位置を水平方向に出入り調整することができる。 The base steel material 20 is fixed to the beam 10 by welding or bolting the horizontal flange 21 to the upper surface 11 of the beam 10. The vertical flange 22 is located at a position slightly protruding to the outdoor side from the upper surface 11 of the beam 10. By adjusting the amount of protrusion of the vertical flange 22 when the base steel material 20 is installed, the installation position of the wall panel 100 can be adjusted in and out in the horizontal direction.
自重受け金具３０は、断面略「ト」の字形をなし、上側壁パネル１００Ａの自重を上側壁パネル１００Ａの下方から受ける受け部（水平部３１）を有し、梁１０に対して直接または間接的に位置が固定されている。
図１に示す例では、自重受け金具３０は、下地鋼材２０の鉛直フランジ２２の屋外側の面に溶接されることにより固定されている。
The self-weight receiving metal fitting 30 has a substantially "G" -shaped cross section, has a receiving portion (horizontal portion 31) that receives the self-weight of the upper side wall panel 100A from below the upper side wall panel 100A, and is directly or indirectly with respect to the beam 10. The position is fixed.
In the example shown in FIG. 1, the self-weight receiving metal fitting 30 is fixed by being welded to the outdoor side surface of the vertical flange 22 of the base steel material 20.
図２に示すように、自重受け金具３０は、金属板が折り曲げられてなり、上側壁パネル１００Ａの下面を支持する水平部３１と、該水平部３１に対して略直交し上側に突出して設けられる上側突出部３２と、水平部３１に対して下側に突出して設けられる下側突出部３３とが一体に形成されて断面略「ト」の字形状をなす。
ここで、『断面略「ト」の字形状』とは、水平部３１の端部から、上側に上側突出部３２が、下側に下側突出部３３がそれぞれ延びて配された形状を模式的に示すものであり、自重受け金具３０の断面形状が「ト」の字形状に一致することを意図するものではない。
例えば、「ト」の字では、横線が縦線に対して傾斜しているが、自重受け金具３０において、水平部３１が、上側突出部３２および下側突出部３３に対して傾斜していることを意味するものではない。また、「ト」の字では、縦線が一直線をなしているが、自重受け金具３０において、上側突出部３２と下側突出部３３との間に段差部が設けられている場合のように、上側突出部３２と下側突出部３３との断面が一直線であることを必ずしも意味するものではない。
As shown in FIG. 2, the self-weight receiving metal fitting 30 is provided with a horizontal portion 31 which is formed by bending a metal plate and supports the lower surface of the upper side wall panel 100A and a horizontal portion 31 which is substantially orthogonal to the horizontal portion 31 and projects upward. The upper protruding portion 32 to be formed and the lower protruding portion 33 provided so as to project downward with respect to the horizontal portion 31 are integrally formed to form a substantially “G” shape in cross section.
Here, the "shape having a substantially" T "cross section" is a schematic shape in which an upper protruding portion 32 extends upward and a lower protruding portion 33 extends downward from the end of the horizontal portion 31. It is not intended that the cross-sectional shape of the self-weight receiving metal fitting 30 matches the "T" shape.
For example, in the "T" character, the horizontal line is inclined with respect to the vertical line, but in the self-weight receiving metal fitting 30, the horizontal portion 31 is inclined with respect to the upper protruding portion 32 and the lower protruding portion 33. It does not mean that. Further, in the "T" character, the vertical lines are in a straight line, but as in the case where the self-weight receiving metal fitting 30 is provided with a stepped portion between the upper protruding portion 32 and the lower protruding portion 33. It does not necessarily mean that the cross section of the upper protruding portion 32 and the lower protruding portion 33 is a straight line.
水平部３１の上面に、上側壁パネル１００Ａの底面が当接することにより、水平部３１は、上側壁パネル１００Ａの自重を直接的に受けることとなる。 When the bottom surface of the upper side wall panel 100A comes into contact with the upper surface of the horizontal portion 31, the horizontal portion 31 directly receives the weight of the upper side wall panel 100A.
下側突出部３３には、ボルトが挿通されるボルト孔３４が形成されている。後述するように、下側突出部３３の屋外側の面は、下側壁パネル１００Ｂの屋内側の面上部に当接させて、該面上部に埋設された埋設アンカー（図示略）に、ボルト孔３４を介してボルト留めされる（図示略）。 A bolt hole 34 through which a bolt is inserted is formed in the lower protrusion 33. As will be described later, the outdoor side surface of the lower protruding portion 33 is brought into contact with the indoor upper surface of the lower side wall panel 100B, and a bolt hole is formed in the buried anchor (not shown) embedded in the upper surface. It is bolted via 34 (not shown).
また、下側突出部３３の幅は、下に向かうにつれて（水平部３１から離れるにつれて）幅が狭くなり、逆台形状をなしていてもよい、これにより、十分な強度を維持しつつも、材料使用量を削減することができる。材料コストの低下にもつながる。 Further, the width of the lower protruding portion 33 becomes narrower as it goes downward (as it moves away from the horizontal portion 31), and may have an inverted trapezoidal shape, whereby sufficient strength is maintained. The amount of material used can be reduced. It also leads to a reduction in material costs.
また、上側突出部３２の屋内側の面は、下地鋼材２０の鉛直フランジ２２の屋外側の面に当接し固定されている。ここで、上側突出部３２の両側には、下側突出部３３側に向けて形成された略矩形状の凹部３６が設けられている。 Further, the indoor side surface of the upper protruding portion 32 is in contact with and fixed to the outdoor side surface of the vertical flange 22 of the base steel material 20. Here, on both sides of the upper protruding portion 32, substantially rectangular recesses 36 formed toward the lower protruding portion 33 side are provided.
なお、水平部３１の下側において、下側突出部３３と上側突出部３２との間には所定高さの段差部３５が設けられている。この段差部３５により、下側壁パネル１００Ｂと下地鋼材２０（鉛直フランジ２２）との間に所定の間隙が保持される。
なお、図に示す例では、水平部３１の下側１０ｍｍほどのところに段差部３５が設けられているが、段差部３５は、水平部３１の直下であっても、いくらか（数ｍｍ〜十数ｍｍ程度）離れていても構わない。
In addition, on the lower side of the horizontal portion 31, a step portion 35 having a predetermined height is provided between the lower protruding portion 33 and the upper protruding portion 32. A predetermined gap is maintained between the lower side wall panel 100B and the base steel material 20 (vertical flange 22) by the step portion 35.
In the example shown in the figure, the step portion 35 is provided about 10 mm below the horizontal portion 31, but the step portion 35 is somewhat (several mm to ten) even if it is directly below the horizontal portion 31. It may be separated (about several mm).
つぎに、本発明の壁パネル１００の取り付け工法について説明する。
下側壁パネル１００Ｂの屋内側の面上部には、アンカーが埋設されている（図示略）。まず、下側突出部３３の屋外側の面を、下側壁パネル１００Ｂの屋内側の面上部に当接させて、該面上部に埋設されたアンカーに、ボルト孔３４を介してボルト留め（図示略）する。
これにより、図３に示すように、下側壁パネル１００Ｂの屋内側の面上部に自重受け金具３０が固定される。
Next, the mounting method of the wall panel 100 of the present invention will be described.
An anchor is embedded in the upper part of the indoor side surface of the lower side wall panel 100B (not shown). First, the outdoor side surface of the lower protruding portion 33 is brought into contact with the indoor upper surface of the lower side wall panel 100B, and bolted to the anchor embedded in the upper surface via the bolt hole 34 (not shown). (Omitted).
As a result, as shown in FIG. 3, the self-weight receiving metal fitting 30 is fixed to the upper part of the indoor side surface of the lower side wall panel 100B.
そして、自重受け金具３０の上側突出部３２の屋内側の面を、下地鋼材２０の鉛直フランジ２２の屋外側の面に対し位置決めし当接させる。
このとき、自重受け金具３０の水平部３１の上面を、予め設定されている、上側壁パネル１００Ａの底面の位置に略一致させる。これにより、上側壁パネル１００Ａを配置した際に、上側壁パネル１００Ａの底面が水平部３１に当接することができ、上側壁パネル１００Ａが上下方向に位置決めされると共に、上側壁パネル１００Ａの自重が自重受け金具３０に支持される。
Then, the indoor side surface of the upper protruding portion 32 of the self-weight receiving metal fitting 30 is positioned and brought into contact with the outdoor side surface of the vertical flange 22 of the base steel material 20.
At this time, the upper surface of the horizontal portion 31 of the self-weight receiving metal fitting 30 is substantially aligned with the preset position of the lower surface of the upper side wall panel 100A. As a result, when the upper side wall panel 100A is arranged, the bottom surface of the upper side wall panel 100A can come into contact with the horizontal portion 31, the upper side wall panel 100A is positioned in the vertical direction, and the weight of the upper side wall panel 100A is reduced. It is supported by its own weight receiving metal fitting 30.
また、このとき、段差部３５が梁１０の上面１１（天端）よりも上になるように、下地鋼材２０に対する自重受け金具３０の上下方向の位置を決定することが好ましい。これにより、柱梁接合部において、自重受け金具３０の段差部３５とダイアフラムとの干渉を防止することができる。 Further, at this time, it is preferable to determine the vertical position of the self-weight receiving metal fitting 30 with respect to the base steel material 20 so that the step portion 35 is above the upper surface 11 (top end) of the beam 10. As a result, it is possible to prevent interference between the stepped portion 35 of the self-weight receiving metal fitting 30 and the diaphragm at the beam-column joint.
自重受け金具３０のボルト孔３４が、上下方向（垂直方向）に長円形状であることが好ましい。高さ方向の位置誤差を長円形状のボルト孔３４が吸収するため、上下方向の位置決定をしやすくなる。 It is preferable that the bolt hole 34 of the self-weight receiving metal fitting 30 has an oval shape in the vertical direction (vertical direction). Since the oval-shaped bolt hole 34 absorbs the position error in the height direction, it becomes easy to determine the position in the vertical direction.
そして、図４および図５に示すように、自重受け金具３０の上側突出部３２の屋内側の面を、下地鋼材２０の鉛直フランジ２２の屋外側の面に固定する。このとき、本発明では、図６に示すように、少なくとも凹部３６の底部を溶接し溶接部３７とすることにより、自重受金具を下地鋼材２０の鉛直フランジ２２に固定することを特徴とする。 Then, as shown in FIGS. 4 and 5, the indoor side surface of the upper protruding portion 32 of the self-weight receiving metal fitting 30 is fixed to the outdoor side surface of the vertical flange 22 of the base steel material 20. At this time, as shown in FIG. 6, the present invention is characterized in that the self-weight receiving metal fitting is fixed to the vertical flange 22 of the base steel material 20 by welding at least the bottom of the recess 36 to form the welded portion 37.
上述した、溶接最下部に作用する応力度の式において（図８参照）、最上部からの距離ｂが大きい（溶接位置を下げる）ほど、また、溶接最下部の断面積Ａが大きいほど、作用する応力度は小さい。すなわち、溶接最下部に作用する応力度が小さくなり、溶接部の負担が軽くなる。 In the above-mentioned formula for the degree of stress acting on the bottom of the weld (see FIG. 8), the larger the distance b from the top (lower the welding position) and the larger the cross-sectional area A of the bottom of the weld, the more the action. The degree of stress is small. That is, the degree of stress acting on the lowermost part of the weld is reduced, and the load on the welded portion is lightened.
本発明では、図６に示すように、自重受け金具３０の上側突出部３２の両側に凹部３６を設け、凹部３６の底部を溶接して溶接部３７により固定することにより、上側突出部３２の側面部分を溶接する場合に比べて溶接位置を下げることができるとともに、溶接断面積（溶接部３７の長さ）を確保することができる。これにより、負風圧力作用時の、溶接最下部に作用する応力度を小さくして、溶接部３７の負担を軽くすることができる。 In the present invention, as shown in FIG. 6, recesses 36 are provided on both sides of the upper protrusion 32 of the self-weight receiving metal fitting 30, and the bottom of the recess 36 is welded and fixed by the welded portion 37 to form the upper protrusion 32. The welding position can be lowered as compared with the case where the side surface portion is welded, and the weld cross-sectional area (length of the welded portion 37) can be secured. As a result, the degree of stress acting on the lowermost portion of the weld when the negative wind pressure acts can be reduced, and the load on the welded portion 37 can be lightened.
このように、本発明では、上側突出部３２の側面部分ではなく、凹部３６の底部を溶接して溶接部３７とすることで、溶接最下部の溶接断面積を溶接長さ（溶接部３７の長さ）でコントロールでき、かつ、溶接断面積を確保しやすくなる。
溶接位置の低下と溶接断面積の増大との相乗効果で、溶接最下部に作用する応力度が小さくなり、溶接部の負担を小さくすることができる。
As described above, in the present invention, the bottom portion of the recess 36 is welded to form the welded portion 37 instead of the side surface portion of the upper protruding portion 32, so that the weld cross-sectional area at the bottom of the weld is the weld length (welded portion 37). It can be controlled by length), and it becomes easier to secure the weld cross-sectional area.
Due to the synergistic effect of lowering the welding position and increasing the weld cross section, the degree of stress acting on the lowermost part of the weld is reduced, and the load on the welded portion can be reduced.
さらに、凹部３６の底部を溶接する際に、下向き溶接となるので溶接が容易となり、作業者の負担を低減することができる。 Further, when the bottom portion of the recess 36 is welded, the welding is performed downward, so that the welding is easy and the burden on the operator can be reduced.
凹部３６の幅ｗとしては、該自重受け金具３０を構成する金属板の板厚の２倍以上が好ましく。３倍以上がより好ましい。これにより、溶接長さを確保しやすくなり、十分な溶接強度を確保することができる。また、溶接作業の際に、凹部３６の底に溶接棒を入れやすくなる。
なお、図２に示す例では、凹部３６の幅ｗは、２０ｍｍとしている。
The width w of the recess 36 is preferably twice or more the thickness of the metal plate constituting the self-weight receiving metal fitting 30. More than 3 times is more preferable. As a result, it becomes easy to secure the welding length, and a sufficient welding strength can be secured. Further, during the welding work, it becomes easy to insert the welding rod into the bottom of the recess 36.
In the example shown in FIG. 2, the width w of the recess 36 is 20 mm.
また、凹部３６の幅ｗを金属板の板厚の２倍以上とすることで、自重受け金具３０を金属板のプレス打ち抜きにより製造する場合に、プレス打ち抜きが容易となり、プレス金型が長持ちするといった利点もある。 Further, by making the width w of the recess 36 more than twice the plate thickness of the metal plate, when the self-weight receiving metal fitting 30 is manufactured by press punching of the metal plate, the press punching becomes easy and the press die lasts longer. There are also advantages such as.
なお、通常の金具の設計においては、加工上最小限の凹部幅（≒板厚）とし、材料ロスを避けることが多い。本発明では、自重受け金具３０製造の際の材料ロスが大きくなろうとも、あえて凹部３６の幅を大きくとることにより、溶接長さ（溶接強度）を確保するとともに、凹部３６の底部での溶接作業を容易にした。 In the design of ordinary metal fittings, the minimum recess width (≈ plate thickness) is often used to avoid material loss. In the present invention, even if the material loss in manufacturing the self-weight receiving metal fitting 30 becomes large, the welding length (welding strength) is secured by intentionally increasing the width of the recess 36, and welding at the bottom of the recess 36 is performed. Made the work easier.
また、自重受け金具３０の全体幅を大きくすることなく凹部３６の幅を大きくとるために、上側突出部３２の幅を細くした。図２に示す例では、上側突出部３２の幅を１５ｍｍとしている。
本発明者らの実験によれば、上側突出部３２の幅をこの程度まで細くしても、取付強度には大きな影響がないことを確認している。
Further, in order to increase the width of the recess 36 without increasing the overall width of the self-weight receiving metal fitting 30, the width of the upper protrusion 32 is reduced. In the example shown in FIG. 2, the width of the upper protrusion 32 is 15 mm.
According to the experiments by the present inventors, it has been confirmed that even if the width of the upper protruding portion 32 is reduced to this extent, the mounting strength is not significantly affected.
また、凹部３６の深さとしては特に限定されるものではないが、図７に示すように、凹部３６の底位置が、下側壁パネル１００Ｂの屋内側の上端稜線から俯角４５°の延長線Ｌ１以上、俯角１０°の延長線Ｌ２以下の位置となるように設けることが好ましい。
ここで、俯角は原則として、下側壁パネル１００Ｂの角〜凹部３６の底の前端で計る。また、この角に面取がある場合は、面取に沿った俯角で考える。
The depth of the recess 36 is not particularly limited, but as shown in FIG. 7, the bottom position of the recess 36 is an extension line L1 having a depression angle of 45 ° from the upper end ridge line on the indoor side of the lower side wall panel 100B. As described above, it is preferable to provide the position at a position equal to or less than the extension line L2 having a depression angle of 10 °.
Here, as a general rule, the depression angle is measured from the corner of the lower side wall panel 100B to the front end of the bottom of the recess 36. If there is a chamfer at this corner, consider the depression angle along the chamfer.
凹部３６の底位置を、下側壁パネル１００Ｂの屋内側の上端稜線から俯角１０°の延長線Ｌ２より下側にすることで、凹部３６の底部の高さ（溶接位置）をより下げることができる。凹部３６の底位置を、俯角４５°の延長線Ｌ１より上側にすることで、隅肉溶接がしやすくなる。また、溶接スラグとり（チッピングハンマー）の作業性を損なわない。一般に、隅肉溶接では溶接棒を４５°（条件によっては４０〜５０°）傾けるとされている。
上記の観点から、凹部３６の底位置は、下側壁パネル１００Ｂの屋内側の上端稜線から俯角４０°の延長線上以上、俯角２０°の延長線上以下の位置に設けることがより好ましい。
The height (welding position) of the bottom of the recess 36 can be further lowered by setting the bottom position of the recess 36 below the extension line L2 having a depression angle of 10 ° from the upper end ridge on the indoor side of the lower wall panel 100B. .. By setting the bottom position of the recess 36 above the extension line L1 having a depression angle of 45 °, fillet welding can be facilitated. In addition, the workability of the welding slag remover (chipping hammer) is not impaired. Generally, in fillet welding, the welding rod is tilted by 45 ° (40 to 50 ° depending on the conditions).
From the above viewpoint, it is more preferable that the bottom position of the recess 36 is provided at a position above the extension line of the depression angle of 40 ° and below the extension line of the depression angle of 20 ° from the upper end ridge line on the indoor side of the lower side wall panel 100B.
以上のようにして、下側壁パネル１００Ｂの屋内側の面上部に固定された自重受け金具３０が、水平部３１を屋外側へ向けて、上側突出部３２を、梁１０に固定された下地鋼材２０の鉛直フランジ２２に溶接固定される。 As described above, the self-weight receiving metal fitting 30 fixed to the upper part of the indoor side surface of the lower side wall panel 100B faces the horizontal portion 31 toward the outdoor side, and the upper protruding portion 32 is fixed to the beam 10. It is welded and fixed to the vertical flange 22 of 20.
このとき、本発明では、自重受け金具３０の上側突出部３２の両側に設けた凹部３６の底部を溶接固定することにより、溶接位置を下げるとともに、溶接断面積（溶接長さ）を確保している。これにより、負風圧力作用時の、溶接最下部に作用する応力度を小さくして、溶接部の負担を軽くすることができる。 At this time, in the present invention, by welding and fixing the bottoms of the recesses 36 provided on both sides of the upper protruding portion 32 of the self-weight receiving metal fitting 30, the welding position is lowered and the welding cross section (welding length) is secured. There is. As a result, the degree of stress acting on the lowermost portion of the weld when the negative wind pressure acts can be reduced, and the load on the welded portion can be lightened.
この後、上側壁パネル１００Ａの底面が水平部３１に当接するように、上側壁パネル１００Ａを配置することで、上側壁パネル１００Ａが上下方向に位置決めされると共に、上側壁パネル１００Ａの自重が自重受け金具３０に支持される（図１参照）。 After that, by arranging the upper side wall panel 100A so that the bottom surface of the upper side wall panel 100A abuts on the horizontal portion 31, the upper side wall panel 100A is positioned in the vertical direction and the own weight of the upper side wall panel 100A is its own weight. It is supported by the receiving metal fitting 30 (see FIG. 1).
そして、上述したような取付工法により、建物躯体に壁パネルが取り付けられてなる壁パネルの取付構造体、および該取付構造体を備えた建物も、本発明に含まれる。本発明の壁パネルの取付構造体及び建物では、負風圧力作用時の、自重受け金具の溶接部の負担（作用応力度）が軽減されたものとなる。 The present invention also includes a wall panel mounting structure in which the wall panel is mounted on the building frame by the mounting method as described above, and a building provided with the mounting structure. In the wall panel mounting structure and the building of the present invention, the burden (acting stress degree) on the welded portion of the self-weight receiving metal fitting when the negative wind pressure is applied is reduced.
以上、本発明の実施の形態について説明してきたが、本発明はこれに限定されるものではなく、発明の趣旨を逸脱しない範囲で適宜変更可能である。
なお、上述した説明では、壁パネルとして外壁パネルを例に挙げ、外壁パネルを建物躯体に取り付ける場合を例に挙げて説明したが、本発明はこれに限定されるものではなく、屋内における壁パネルを取り付ける場合にも、本発明は適用可能である。
この場合、壁パネル表面は「屋外」ではなく「室内（部屋の内側）」を向いて取り付けられるため、上記説明において「屋外側」は『室内側』、「屋内側」は『室外側』と読み替えるものとする。
ここで、「室内」とは、壁パネルが取り付けられる部屋（個室）の内側空間であって、通常、人間が活動する空間のことを言い、廊下や玄関ホールなどの空間も含む。
Although the embodiments of the present invention have been described above, the present invention is not limited to this, and can be appropriately changed without departing from the spirit of the invention.
In the above description, the outer wall panel is taken as an example as the wall panel, and the case where the outer wall panel is attached to the building frame is taken as an example. However, the present invention is not limited to this, and the indoor wall panel is not limited to this. The present invention is also applicable to the case of mounting.
In this case, since the wall panel surface is installed facing "indoor (inside the room)" instead of "outdoor", in the above explanation, "outdoor side" is "indoor side" and "indoor side" is "outdoor side". It shall be read as.
Here, the "indoor" is an inner space of a room (private room) to which a wall panel is attached, and usually refers to a space in which humans are active, including a space such as a corridor or an entrance hall.
本発明による取り付け工法を用いることで、自重受け金具の溶接作業を容易にできるとともに、負風圧力作用時の、自重受け金具の溶接部の負担（作用応力度）を軽減できるものとなり、壁パネルの取付工法、取付構造体、自重受け金具および建物として広く利用することができる。 By using the mounting method according to the present invention, the welding work of the self-weight receiving metal fitting can be facilitated, and the load (acting stress degree) of the welded portion of the self-weight receiving metal fitting can be reduced when a negative wind pressure is applied. It can be widely used as a mounting method, mounting structure, self-weight receiving bracket, and building.
１ ：取付構造体
１０ ：梁
１１ ：上面
２０ ：下地鋼材
２１ ：水平フランジ
２２ ：鉛直フランジ
３０ ：自重受け金具
３１ ：水平部
３２ ：上側突出部
３３ ：下側突出部
３４ ：ボルト孔
３５ ：段差部
３６ ：凹部
３７ ：溶接部
１００ ：壁パネル
１００Ａ ：上側壁パネル
１００Ｂ ：下側壁パネル
1: Mounting structure 10: Beam 11: Top surface 20: Base steel 21: Horizontal flange 22: Vertical flange 30: Self-weight receiving metal fittings 31: Horizontal part 32: Upper protruding part 33: Lower protruding part 34: Bolt hole 35: Step Part 36: Recessed part 37: Welded part 100: Wall panel 100A: Upper side wall panel 100B: Lower side wall panel
Claims (10)
前記自重受け金具（３０）は、金属板が折り曲げられてなり、上側壁パネル（１００Ａ）の下面を支持する水平部（３１）と、該水平部（３１）に対して略直交し上側に突出して設けられる上側突出部（３２）と、該水平部（３１）に対して下側に突出して設けられる下側突出部（３３）とが一体に形成されて断面略「ト」の字形状をなし、前記上側突出部（３２）の両側には、前記下側突出部（３３）側に向けて形成された略矩形状の凹部（３６）が設けられており、
前記自重受け金具（３０）を、前記水平部（３１）を屋外側へ向けて、前記上側突出部（３２）を前記下地鋼材（２０）の前記鉛直部（２２）の屋外側の面に当接させて固定する際に、少なくとも前記凹部（３６）の底部において溶接固定することを特徴とする、壁パネルの取付工法。 A self-weight receiving metal fitting (30) that supports the weight of the upper side wall panel (100A) on the outdoor side surface of the vertical portion (22) of the base steel material (20) fixed to the upper surface (11) of the beam (10) of the building. In the wall panel mounting method to fix
The self-weight receiving metal fitting (30) is formed by bending a metal plate, and is substantially orthogonal to a horizontal portion (31) that supports the lower surface of the upper side wall panel (100A) and projects upward from the horizontal portion (31). The upper protruding portion (32) provided in the above direction and the lower protruding portion (33) provided so as to project downward with respect to the horizontal portion (31) are integrally formed to form a substantially “G” shape in cross section. None, on both sides of the upper protruding portion (32), substantially rectangular recesses (36) formed toward the lower protruding portion (33) side are provided.
The self-weight receiving metal fitting (30) is brought into contact with the horizontal portion (31) toward the outdoor side and the upper protruding portion (32) against the outdoor side surface of the vertical portion (22) of the base steel material (20). A method for mounting a wall panel, which comprises welding and fixing at least at the bottom of the recess (36) when the walls are brought into contact with each other and fixed.
下側壁パネル（１００Ｂ）の屋内側の面上部に埋設された埋設アンカーに、該ボルト孔（３４）を介してボルト留めされる、請求項１または２に記載の壁パネルの取付工法。 The lower protrusion (33) of the self-weight receiving metal fitting (30) has a bolt hole (34) through which a bolt is inserted, and the outdoor side surface of the lower protrusion (33) is a lower side wall panel (100B). In contact with the upper part of the indoor side of the
The method for mounting a wall panel according to claim 1 or 2, wherein the lower wall panel (100B) is bolted to a buried anchor embedded in the upper part of the indoor side surface via the bolt hole (34).
前記段差部（３５）が前記梁（１０）の上面（１１）よりも上になるように、前記自重受け金具（３０）を配する、請求項１から３のいずれか一項に記載の壁パネルの取付工法。 On the lower side of the horizontal portion (31), a step portion (35) having a predetermined height is provided between the lower protruding portion (33) and the upper protruding portion (32).
The wall according to any one of claims 1 to 3, wherein the self-weight receiving metal fitting (30) is arranged so that the step portion (35) is above the upper surface (11) of the beam (10). Panel mounting method.
前記自重受け金具（３０）は、金属板が折り曲げられてなり、上側壁パネル（１００Ａ）の下面を支持する水平部（３１）と、該水平部（３１）に対して略直交し上側に突出して設けられる上側突出部（３２）と、水平部（３１）に対して下側に突出して設けられる下側突出部（３３）とが一体に形成されて断面略「ト」の字形状をなし、前記上側突出部（３２）の両側には、前記下側突出部（３３）側に向けて形成された略矩形状の凹部（３６）が設けられており、
前記自重受け金具（３０）が、前記水平部（３１）を屋外側へ向けて、前記上側突出部（３２）を前記下地鋼材（２０）の前記鉛直部（２２）の屋外側の面に当接させた状態で、少なくとも前記凹部（３６）の底部において溶接固定されていることを特徴とする、壁パネルの取付構造体。 The base steel material (20) fixed to the upper surface (11) of the beam (10) of the building and the base steel material (20) fixed to the outdoor side surface of the vertical portion (22) of the upper side wall panel (100A). In the wall panel mounting structure (1) having a self-weight receiving metal fitting (30) that supports the weight.
The self-weight receiving metal fitting (30) is formed by bending a metal plate, and is substantially orthogonal to a horizontal portion (31) that supports the lower surface of the upper side wall panel (100A) and projects upward from the horizontal portion (31). The upper protruding portion (32) provided in the above direction and the lower protruding portion (33) provided so as to project downward with respect to the horizontal portion (31) are integrally formed to form a substantially “G” shape in cross section. On both sides of the upper protruding portion (32), substantially rectangular recesses (36) formed toward the lower protruding portion (33) side are provided.
The self-weight receiving metal fitting (30) contacts the horizontal portion (31) toward the outdoor side and the upper protruding portion (32) against the outdoor side surface of the vertical portion (22) of the base steel material (20). A wall panel mounting structure, characterized in that it is welded and fixed at least at the bottom of the recess (36) in a contacted state.
下側壁パネル（１００Ｂ）の屋内側の面上部に埋設された埋設アンカーに、該ボルト孔（３４）を介してボルト留めされている、請求項７に記載の壁パネルの取付構造体。 The lower protrusion (33) of the self-weight receiving metal fitting (30) has a bolt hole (34) through which a bolt is inserted, and the outdoor side surface of the lower protrusion (33) is a lower side wall panel (100B). In contact with the upper part of the indoor side of the
The wall panel mounting structure according to claim 7, wherein the wall panel mounting structure is bolted to a buried anchor embedded in the upper part of the indoor side surface of the lower side wall panel (100B) via the bolt hole (34).
前記自重受け金具（３０）は、金属板が折り曲げられてなり、上側壁パネル（１００Ａ）の下面を支持する水平部（３１）と、該水平部（３１）に対して略直交し上側に突出して設けられる上側突出部（３２）と、水平部（３１）に対して下側に突出して設けられる下側突出部（３３）とが一体に形成されて断面略「ト」の字形状をなし、前記上側突出部（３２）の両側には、前記下側突出部（３３）側に向けて形成された略矩形状の凹部（３６）が設けられており、用いられることを特徴とする、自重受け金具。 A self-weight receiving metal fitting used in the wall panel mounting method according to any one of claims 1 to 6.
The self-weight receiving metal fitting (30) is formed by bending a metal plate, and projects upward at a horizontal portion (31) that supports the lower surface of the upper side wall panel (100A) and is substantially orthogonal to the horizontal portion (31). The upper protruding portion (32) provided in the above direction and the lower protruding portion (33) provided so as to project downward with respect to the horizontal portion (31) are integrally formed to form a substantially “G” shape in cross section. On both sides of the upper protruding portion (32), substantially rectangular recesses (36) formed toward the lower protruding portion (33) side are provided and are used. Self-weight receiving bracket.
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| JPH1061078A (en) * | 1996-06-10 | 1998-03-03 | Sumitomo Metal Mining Co Ltd | Metal fitting of panel for construction |
| JPH10205100A (en) * | 1996-11-22 | 1998-08-04 | Sumitomo Metal Mining Co Ltd | Mounting fitment for outer wall panel |
| JPH10266437A (en) * | 1997-03-27 | 1998-10-06 | Sumitomo Metal Mining Co Ltd | Vertical wall panel mounting structure and dead load bearing hardware |
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