JP5752208B2 - Exterior wall structure - Google Patents
Exterior wall structure Download PDFInfo
- Publication number
- JP5752208B2 JP5752208B2 JP2013224057A JP2013224057A JP5752208B2 JP 5752208 B2 JP5752208 B2 JP 5752208B2 JP 2013224057 A JP2013224057 A JP 2013224057A JP 2013224057 A JP2013224057 A JP 2013224057A JP 5752208 B2 JP5752208 B2 JP 5752208B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- steel pipe
- pipe column
- fireproof
- disposed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 87
- 239000010959 steel Substances 0.000 claims description 87
- 239000010440 gypsum Substances 0.000 claims description 35
- 229910052602 gypsum Inorganic materials 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 239000011491 glass wool Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229920001276 ammonium polyphosphate Polymers 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004795 extruded polystyrene foam Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004114 Ammonium polyphosphate Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- GUSFEBGYPWJUSS-UHFFFAOYSA-N pentaazanium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O GUSFEBGYPWJUSS-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Building Environments (AREA)
- Load-Bearing And Curtain Walls (AREA)
Description
本発明は、耐火性能を備えた外壁構造に関するものである。 The present invention relates to an outer wall structure having fire resistance.
従来、建物の隣接する柱に沿って外壁の側縁がそれぞれ配設された外壁の継目において、所望する耐火性能を確保するための様々な外壁構造が開発されている(特許文献1−3など参照)。 Conventionally, various outer wall structures have been developed to ensure desired fire resistance at the joints of the outer walls in which the side edges of the outer walls are arranged along adjacent columns of the building (Patent Documents 1-3, etc.) reference).
例えば、特許文献1には、間隔を開けて並設された角形鋼管柱の屋内側を、平面視コ字形に形成された石綿セメント珪酸カルシウム板(ケイカル板)で囲んだ建物の耐火構造が開示されている。 For example, Patent Document 1 discloses a fireproof structure for a building in which the indoor side of rectangular steel pipe columns arranged side by side are surrounded by an asbestos cement calcium silicate board (calcal board) formed in a U shape in plan view. Has been.
また、特許文献2には、間隔を開けて並設された角形鋼管柱の屋内側の柱間に、耐火材となるジョイント用被覆板を架け渡し、柱間の隙間を塞ぐことで耐火性能を確保した構造が開示されている。 In Patent Document 2, a joint covering plate serving as a refractory material is bridged between indoor columns of square steel pipe columns arranged side by side at intervals, and fire resistance is achieved by closing the gap between the columns. A secured structure is disclosed.
さらに、特許文献3には、隙間を開けて隣接する建物ユニット間の屋内側において、角形鋼管柱間にケイカル板を備えた耐火被覆具を装着した構造が開示されている。 Further, Patent Document 3 discloses a structure in which a fireproof covering provided with a calcium plate between square steel pipe columns is mounted on the indoor side between adjacent building units with a gap.
しかしながら、特許文献1−3に開示された外壁構造は、いずれも屋内側に板状の耐火材(耐火板)を配置しただけの構造であり、屋外側には充分な耐火構造が形成されているとはいえない。 However, all of the outer wall structures disclosed in Patent Documents 1-3 are structures in which a plate-like fireproof material (fireproof board) is disposed on the indoor side, and a sufficient fireproof structure is formed on the outdoor side. I can't say.
また、耐火板のみで耐火性能を向上させようとした場合、耐火板の厚みを増加させることになる。そして、特許文献1−3に開示されているような屋内側に耐火板を配置する構造では、耐火板の厚みが増加すると屋内空間への突出量が増加し、屋内空間が狭くなるうえに、屋内側の設計変更を余儀なくされることになる。 Moreover, when it is going to improve a fireproof performance only with a fireproof board, the thickness of a fireproof board will be increased. And in the structure which arrange | positions a fireproof board on the indoor side as disclosed by patent documents 1-3, when the thickness of a fireproof board increases, the amount of protrusion to indoor space will increase, and indoor space will become narrow, The design on the indoor side will be forced to change.
そこで、本発明は、屋内側の形状に影響を及ぼすことなく耐火性能を向上させることが可能な外壁構造を提供することを目的としている。 Therefore, an object of the present invention is to provide an outer wall structure capable of improving the fire resistance without affecting the shape on the indoor side.
前記目的を達成するために、本発明の外壁構造は、四角柱状の角形鋼管柱の屋外側に耐火性外壁が配設され、屋内側に耐火材となる内壁板が配設され、前記耐火性外壁と前記内壁板との間には断熱材が配設される耐火性能を備えた外壁構造であって、前記角形鋼管柱の前記屋外側の面と、その面に直交し前記断熱材が配設される側の前記角形鋼管柱の側面の少なくとも一部とに、連続して貼り付けられる加熱膨張シートを備え、前記角形鋼管柱が隣接して設置される場合に、前記加熱膨張シートが貼り付けられた前記角形鋼管柱の側面間に、止水性と耐火性とを兼ね備えた耐火シール材を介在させたことを特徴とする。また、前記角形鋼管柱の側面に隣接して間柱を立設させる場合に、前記間柱に断面視L字状の下地材が取り付けられる構成とすることができる。 In order to achieve the above-mentioned object, the outer wall structure of the present invention has a fireproof outer wall disposed on the outdoor side of a square columnar square steel pipe column, an inner wall plate serving as a fireproof material disposed on the indoor side, and the fireproof It is an outer wall structure having fire resistance performance in which a heat insulating material is disposed between an outer wall and the inner wall plate, and the outdoor side surface of the rectangular steel pipe column and the heat insulating material are arranged perpendicular to the surface. A heating expansion sheet that is continuously affixed to at least a part of a side surface of the rectangular steel pipe column on the side to be installed, and the heating expansion sheet is affixed when the rectangular steel pipe column is installed adjacently It is characterized in that a fireproof sealing material having both waterstop and fire resistance is interposed between the side surfaces of the attached square steel pipe columns. In addition, when a stud is erected adjacent to the side surface of the square steel pipe column, a base material having an L-shaped cross-sectional view can be attached to the stud.
ここで、前記内壁板は、2層構造であって、前記屋外側が石こうボードによって形成され、前記屋内側が強化石こうボードによって形成される構成とすることができる。 Here, the said inner wall board is a 2 layer structure, Comprising: The said outdoor side can be set as the structure formed with a gypsum board, and the said indoor side is formed with a reinforced gypsum board.
また、前記内壁板は、前記角形鋼管柱と対向する部分は強化石こうボードの1層構造であり、それ以外の部分は強化石こうボードと石こうボードとの2層構造であってもよい。 Further, the inner wall plate may have a one-layer structure of a reinforced gypsum board at a portion facing the square steel pipe column, and a two-layer structure of a reinforced gypsum board and a gypsum board at the other portions.
さらに、前記耐火性外壁と前記内壁板との間には木製の下地材が配設される構造であってもよい。 Furthermore, the structure where a wooden base material is arrange | positioned between the said fireproof outer wall and the said inner wall board may be sufficient.
このように構成された本発明の外壁構造は、角形鋼管柱の屋外側の面と、それに直交する側面とに連続して加熱膨張シートが貼り付けられている。 In the outer wall structure of the present invention configured as described above, the heat expansion sheet is continuously attached to the outdoor side surface of the rectangular steel pipe column and the side surface orthogonal thereto.
このため、屋内側の形状を変えることなく、外壁構造の耐火性能を向上させることができる。 For this reason, the fire resistance of the outer wall structure can be improved without changing the shape of the indoor side.
また、角形鋼管柱のサイズが大きくなると熱容量も大きくなって耐火性能が向上するため、角形鋼管柱のサイズが大きい場合は、内壁板を強化石こうボードの1層構造にしても、所望する耐火性能を満たすことができる。このため、角形鋼管柱の位置だけ内壁板が屋内側に突出して屋内側の形状が変化することを防ぐことができる。 In addition, as the size of the square steel pipe column increases, the heat capacity increases and the fire resistance improves, so if the size of the square steel pipe column is large, the desired fire resistance performance can be achieved even if the inner wall plate is made of a single layer structure of reinforced gypsum board. Can be met. For this reason, it can prevent that an inner wall board protrudes in an indoor side only in the position of a square steel pipe pillar, and the shape of an indoor side changes.
さらに、下地材として角材や木桟などの木材を使用することで、釘を使用して内壁板を取り付けることができるようになり、下地材がすべて鋼製で留付材にすべてビスを使用しなければならない構造に比べて、短時間で外壁を製作することができる。 Furthermore, by using wood such as square bars and wooden crosspieces as the base material, it becomes possible to attach the inner wall plate using nails, and the base material is all made of steel and all the screws are used for the fastening material. The outer wall can be manufactured in a short time compared to the structure that must be provided.
以下、本発明の実施の形態について図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図1は、本実施の形態の外壁構造としての外壁1の構成を説明する断面図である。この図1は、間隔を開けて隣接している角形鋼管柱2,2付近の構造を拡大して示している。 FIG. 1 is a cross-sectional view illustrating a configuration of an outer wall 1 as an outer wall structure of the present embodiment. FIG. 1 shows an enlarged structure in the vicinity of the square steel pipe columns 2 and 2 that are adjacent to each other with a gap therebetween.
このように角形鋼管柱2,2が隣接して設置される構造は、鉄骨骨組構造(鉄骨ラーメン構造)の建物ユニットを組み合わせて建物を構築する場合は、建物ユニット間の継目に発生することになる。 The structure in which the square steel pipe columns 2 and 2 are installed adjacent to each other in this manner occurs in a joint between the building units when a building is constructed by combining building units having a steel frame structure (steel frame structure). Become.
まず、この外壁1の構成について説明すると、角形鋼管柱2の屋外側に配設される耐火性外壁としての鋼板外壁3と、角形鋼管柱2の屋内側に配設される内壁板4と、鋼板外壁3と内壁板4との間に配設される断熱材としてのグラスウール5とを主に備えている。 First, the configuration of the outer wall 1 will be described. A steel plate outer wall 3 as a fire-resistant outer wall disposed on the outdoor side of the square steel pipe column 2, an inner wall plate 4 disposed on the indoor side of the square steel pipe column 2, A glass wool 5 is mainly provided as a heat insulating material disposed between the steel plate outer wall 3 and the inner wall plate 4.
この角形鋼管柱2は、四角柱状の角形鋼管によって形成される柱で、箱型の建物ユニットであれば四隅にそれぞれ立設される。例えば、断面視正方形の1辺が100mm程度の角形鋼管を使って角形鋼管柱2を製作する。 This square steel pipe column 2 is a column formed by a square columnar square steel pipe, and if it is a box-type building unit, it is erected at the four corners. For example, the square steel pipe column 2 is manufactured using a square steel pipe whose one side of the square in cross section is about 100 mm.
また、鋼板外壁3は、石こうボード又は硬質木片セメント板などによって形成される矩形板状の芯材と、その芯材の表面に接着剤によって貼り付けられる鋼板とによって主に構成される耐火性能に優れたパネル状部材である。 Moreover, the steel plate outer wall 3 has a fireproof performance mainly composed of a rectangular plate-shaped core material formed of gypsum board or hard wood chip cement plate and a steel plate attached to the surface of the core material with an adhesive. It is an excellent panel-like member.
さらに、内壁板4は、2層構造となっており、屋外側が石こうボード41、屋内側が強化石こうボード42によって形成されている。この強化石こうボード42は、石こうの中にガラス繊維などを加えることによって耐火性能が強化されたボードである。 Further, the inner wall plate 4 has a two-layer structure, and is formed with a gypsum board 41 on the outdoor side and a reinforced gypsum board 42 on the indoor side. The reinforced gypsum board 42 is a board whose fire resistance performance is enhanced by adding glass fiber or the like into the gypsum.
なお、隣接する角形鋼管柱2,2間を塞ぐ部分は内壁板4Aとする。この内壁板4Aは、隣接する内壁板4と同様に屋外側が石こうボード41、屋内側が強化石こうボード42によって形成されている。 In addition, let the part which plugs between the adjacent square steel pipe pillars 2 and 2 be the inner wall board 4A. As with the adjacent inner wall plate 4, the inner wall plate 4 </ b> A is formed by a gypsum board 41 on the outdoor side and a reinforced gypsum board 42 on the indoor side.
また、内壁板4,4Aに使用する石こうボード41には、例えば厚さ12〜13mm程度のボードを使用し、強化石こうボード42にも、同じく厚さ12〜13mm程度のボードを使用する。 Further, for example, a board having a thickness of about 12 to 13 mm is used for the gypsum board 41 used for the inner wall plates 4 and 4A, and a board having a thickness of about 12 to 13 mm is also used for the reinforced gypsum board 42.
そして、角形鋼管柱2の屋外側の屋外面2aの略全面と、その屋外面2aに直交する側面2cの屋外側の部分(側面2cの1/3〜1/4程度)には、加熱膨張シート6が平面視L字状に連続して貼り付けられる。この側面2cは、角形鋼管柱2の屋外面2aに直交する2つの側面のうち、グラスウール5が配設される壁内部側の側面である。 And, on the substantially whole surface of the outdoor surface 2a on the outdoor side of the square steel pipe column 2 and on the outdoor side portion of the side surface 2c orthogonal to the outdoor surface 2a (about 1/3 to 1/4 of the side surface 2c), heat expansion is performed. The sheet 6 is continuously pasted in an L shape in plan view. The side surface 2 c is a side surface on the inner side of the wall where the glass wool 5 is disposed, out of two side surfaces orthogonal to the outdoor surface 2 a of the square steel pipe column 2.
また、この加熱膨張シート6は、厚さ0.3mm〜6.0mmに形成されたシート状の部材で、火災などの熱によって加熱されると膨張して厚みが5〜40倍になる熱膨張耐火材である。 The heat-expandable sheet 6 is a sheet-like member formed to a thickness of 0.3 mm to 6.0 mm, and expands when heated by heat such as a fire, resulting in a heat-expandable refractory material that becomes 5 to 40 times thicker. It is.
例えば、加熱膨張シート6は、ブチルゴム(エクソンモービル化学社製、商品名「ブチル#065」)42重量部、ポリブテン(出光石油化学社製、商品名「ポリブテン#100R」)50重量部、石油樹脂(エクソンモービル化学社製、商品名「エスコレッツ#5320」)8重量部、ポリリン酸アンモニウム(クラリアント社製、商品名「EXOLIT AP422」)100重量部、中和処理された熱膨張性黒鉛(東ソー社製、商品名「フレームカットGREP−EG」)30重量部、水酸化アルミニウム(昭和電工社製、商品名「ハイジライトH−31」)50重量部、及び炭酸カルシウム(備北粉化工業社製「BF300」)100重量部を、ニーダーを用いて混練した後、得られた樹脂組成物をカレンダー成形により厚さ1mmのシートに形成したものである。 For example, the heat-expandable sheet 6 includes 42 parts by weight of butyl rubber (trade name “Butyl # 065” manufactured by ExxonMobil Chemical Co., Ltd.), 50 parts by weight of polybutene (trade name “Polybutene # 100R” manufactured by Idemitsu Petrochemical Co., Ltd.), and petroleum resin. (ExxonMobil Chemical Company, trade name “Escollet # 5320”) 8 parts by weight, ammonium polyphosphate (Clariant, trade name “EXOLIT AP422”) 100 parts by weight, neutralized heat-expandable graphite (Tosoh Corporation) Manufactured, trade name "frame cut GREP-EG") 30 parts by weight, aluminum hydroxide (Showa Denko Co., trade name "Hijilite H-31") 50 parts by weight, and calcium carbonate (Bihoku Powder Chemical Industries " BF300 ") 100 parts by weight was kneaded using a kneader, and the resulting resin composition was molded into a 1 mm thick sheet by calendering. It is formed in the
この加熱膨張シート6は、薄くて粘着性を有するため、角形鋼管柱2の屋外面2aと側面2cにわたって容易に貼り付けることができる。また、加熱膨張シート6は、アルミガラスクロステープ、アルミテープ、ガムテープ、布テープ等の粘着テープを使用して角形鋼管柱2に固定することもできる。 Since this heat expansion sheet 6 is thin and sticky, it can be easily pasted over the outdoor surface 2a and the side surface 2c of the square steel pipe column 2. Moreover, the heat expansion sheet 6 can also be fixed to the square steel pipe column 2 by using an adhesive tape such as an aluminum glass cloth tape, an aluminum tape, a gum tape, or a cloth tape.
また、角形鋼管柱2の側面2cに隣接してコーナースタッド21が立設される。このコーナースタッド21は、鋼板外壁3を固定するために立設される間柱である。すなわち、図1の右端に示したスタッド22(間柱)と同様に、リベット24によって鋼板外壁3をコーナースタッド21に固定させる。 Further, a corner stud 21 is erected adjacent to the side surface 2 c of the square steel pipe column 2. The corner stud 21 is a stud that is erected to fix the steel plate outer wall 3. That is, the steel plate outer wall 3 is fixed to the corner stud 21 by the rivet 24 as in the stud 22 (intermediate column) shown at the right end of FIG.
また、平面視L字状のコーナースタッド21と角形鋼管柱2との間には、木製の角材21aを下地材として立設させる。そして、この角材21aと石こうボード41との間には木桟43が介在され、内壁板4Aの屋内側から打込まれた釘44Bによって、内壁板4Aは角材21aに固定される。 Further, a wooden square member 21a is erected as a base material between the L-shaped corner stud 21 and the square steel pipe column 2 in plan view. A wooden cross 43 is interposed between the square member 21a and the gypsum board 41, and the inner wall plate 4A is fixed to the square member 21a by a nail 44B driven from the indoor side of the inner wall plate 4A.
さらに、内壁板4の石こうボード41側にも、木桟43が釘44Aによって固定されている。また、内壁板4,4A(4)間の目地は、目地パテなどの目地処理材45によって覆われている。 Further, a wooden cross 43 is also fixed to the gypsum board 41 side of the inner wall plate 4 with nails 44A. The joint between the inner wall plates 4 and 4A (4) is covered with a joint treatment material 45 such as a joint putty.
一方、角形鋼管柱2とコーナースタッド21の屋外側の面には、防水シート25が双方に跨って貼り付けられている。この防水シート25は、加熱膨張シート6よりも鋼板外壁3側に配設される。 On the other hand, a waterproof sheet 25 is pasted on the surfaces of the square steel pipe column 2 and the corner stud 21 on the outdoor side. The waterproof sheet 25 is disposed closer to the steel plate outer wall 3 than the heat expansion sheet 6.
また、隙間を開けて立設される角形鋼管柱2,2の継目では、鋼板外壁3,3間にも隙間が開くことになる。そこで、鋼板外壁3,3間には、ゴムガスケットなどの止水用のガスケット23を差し込む。また、角形鋼管柱2,2間の隙間には、シリコン発泡体などの止水性と耐火性とを兼ね備えた耐火シール材26を介在させる。 In addition, at the joints of the square steel pipe columns 2 and 2 erected with a gap, a gap is also opened between the steel plate outer walls 3 and 3. Therefore, a water stop gasket 23 such as a rubber gasket is inserted between the steel plate outer walls 3 and 3. Further, a fireproof sealing material 26 having both water-stopping properties and fire resistance such as silicon foam is interposed in the gap between the square steel pipe columns 2 and 2.
さらに、角形鋼管柱2,2間の屋内側となる屋内面2b,2b間には、押出法ポリスチレンフォームなどの断熱板51を貼り付ける。この断熱板51は、角形鋼管柱2,2間の隙間を通じて屋内外の熱交換がおこなわれるのを防ぐために配置されるもので、グラスウール5と同様に外壁1の断熱性能を高めるための部材である。 Further, a heat insulating plate 51 such as an extruded polystyrene foam is affixed between the indoor surfaces 2b and 2b on the indoor side between the square steel pipe columns 2 and 2. This heat insulating plate 51 is arranged to prevent indoor and outdoor heat exchange through the gap between the square steel pipe columns 2 and 2, and is a member for improving the heat insulating performance of the outer wall 1 like the glass wool 5. is there.
また、一方の側縁が屋外面2aに対向して配設される鋼板外壁3の他方の側縁は、平面視コ字状のスタッド22にリベット24によって固定される。このスタッド22の幅方向の半面には、角形鋼管柱2との間に架け渡される鋼板外壁3が取り付けられ、残りの半面には、図示しないスタッド22との間で架け渡される鋼板外壁3の一方の側縁が取り付けられる。 Further, the other side edge of the steel plate outer wall 3 provided with one side edge facing the outdoor surface 2a is fixed to a U-shaped stud 22 by a rivet 24 in a plan view. A steel plate outer wall 3 spanned between the square steel pipe column 2 is attached to the half surface of the stud 22 in the width direction, and a steel plate outer wall 3 spanned between the stud 22 (not shown) is attached to the other half surface. One side edge is attached.
また、スタッド22の内空には木製の角材22aが立設され、角材22aと内壁板4との間には木桟43が介在され、内壁板4の屋内側から打込まれる釘44Cによって内壁板4が角材22aに固定される。 Further, a wooden square member 22a is erected in the interior of the stud 22, a wooden cross 43 is interposed between the square member 22a and the inner wall plate 4, and the inner wall is formed by a nail 44C driven from the indoor side of the inner wall plate 4. The plate 4 is fixed to the square member 22a.
本実施の形態の外壁1では、鋼板外壁3と内壁板4,4Aとの間隔よりサイズの小さい1辺100mm程度の角形鋼管柱2を使用しているため、角形鋼管柱2の屋内側の内壁板4Aを他の部分の内壁板4と同様に2層構造にしても、屋内側の形状が変更されることがない。 In the outer wall 1 of the present embodiment, since the square steel pipe column 2 having a side of about 100 mm which is smaller than the distance between the steel plate outer wall 3 and the inner wall plates 4 and 4A is used, the inner wall on the indoor side of the square steel pipe column 2 is used. Even if the plate 4A has a two-layer structure like the other inner wall plate 4, the shape of the indoor side is not changed.
次に、本実施の形態の外壁1の耐火性能について説明する。 Next, the fire resistance performance of the outer wall 1 of the present embodiment will be described.
耐火性能の基準として、例えば1時間準耐火構造と1時間耐火構造とがある。表1に、1時間準耐火構造及び1時間耐火構造の試験条件(加熱曲線、柱載荷条件)及び判定基準を示した。この判定基準は、国土交通省認可の法定性能評価機関((財)ベターリビング、(財)建材試験センター等)の防耐火性能試験・評価業務方法書に準拠したものである。 As a standard of fireproof performance, there are, for example, a 1-hour quasi-fireproof structure and a 1-hour fireproof structure. Table 1 shows test conditions (heating curve, column loading conditions) and criteria for the 1-hour semi-fireproof structure and 1-hour fireproof structure. This criterion is based on the method of fire and fire resistance testing / evaluation work by legal performance evaluation organizations ((B) Living Living, Building Materials Testing Center, etc.) approved by the Ministry of Land, Infrastructure, Transport and Tourism.
この1時間準耐火構造及び1時間耐火構造の加熱時間は、1時間で同じであるが、1時間準耐火構造の場合、1時間の加熱が終了するまでの間、表1の判定基準を満足していればよい。 The heating time of the 1-hour quasi-refractory structure and the 1-hour refractory structure is the same in 1 hour. If you do.
これに対して、1時間耐火構造の場合、1時間加熱が終了した後に、3時間測定を継続し、表1の判定基準を合計4時間満足しなければならない。ここで、加熱後の後追い観察の間は、バーナーは消えていても炉内温度は高温がある程度保持される状態にある。 On the other hand, in the case of a 1 hour fireproof structure, after 1 hour heating is completed, the measurement must be continued for 3 hours, and the determination criteria in Table 1 must be satisfied for a total of 4 hours. Here, during the follow-up observation after heating, even if the burner is turned off, the furnace temperature is kept at a high temperature to some extent.
このため、1時間耐火構造の場合は、構成材料に木材等の可燃材料があると、加熱終了時点ではくすぶり程度だった部材が発火してしまい、各基準を満足できないという結果になりやすい。 For this reason, in the case of a one-hour fireproof structure, if there is a combustible material such as wood as a constituent material, a member that was smoldering at the end of heating will ignite, and each standard will not be satisfied.
これに対して1時間準耐火構造の場合、加熱終了時点まで判定基準を満足すればよいことから、下地材に木材を適用することが可能になり、その留付材に釘を採用することができるようになる。 On the other hand, in the case of a one-hour quasi-refractory structure, it is only necessary to satisfy the judgment criteria until the end of heating, so it becomes possible to apply wood to the base material, and to adopt nails as the fastening material become able to.
本実施の形態の外壁1は、耐火性能として1時間準耐火構造を確保することを目標としており、下地材として角材21a,22a及び木桟43などの木材を使用している。 The outer wall 1 of the present embodiment is aimed to secure a one-hour quasi-fireproof structure as fireproof performance, and wood such as square bars 21a and 22a and a wooden cross 43 is used as a base material.
このため、釘44A−44Cを使用して内壁板4,4Aを取り付けることができ、下地材がすべて鋼製で留付材にすべてビスを使用しなければならない場合に比べて、短時間で外壁1を製作することができる。 For this reason, it is possible to attach the inner wall plates 4 and 4A using the nails 44A-44C, and the outer wall can be shortened in a short time compared to the case where the base material is all made of steel and all the screws are used for the fastening material. 1 can be made.
また、1時間準耐火構造であれば、角形鋼管柱2の側面2c側に石こうボードと強化石こうボードとを2層構造にした耐火材を配置しなくてもよいので、外壁1を軽量化できる。 Moreover, if it is a 1-hour quasi-fireproof structure, it is not necessary to arrange | position the fireproof material which made the gypsum board and the reinforced gypsum board two-layer structure in the side surface 2c side of the square steel pipe column 2, Therefore The outer wall 1 can be reduced in weight. .
そして、加熱膨張シート6を角形鋼管柱2の屋外面2a及び側面2cにわたって連続して貼り付けることで、鋼板外壁3側の耐火性能が向上し、1時間準耐火構造の耐火性能を確保することができた。 And by applying the heat expansion sheet 6 continuously over the outdoor surface 2a and the side surface 2c of the square steel pipe column 2, the fire resistance performance on the steel plate outer wall 3 side is improved, and the fire resistance performance of the one-hour semi-fire resistance structure is ensured. I was able to.
このように本実施の形態の外壁1は、角形鋼管柱2が配置されている箇所もされていない箇所も、内壁板4,4Aは、石こうボード41と強化石こうボード42との2層構造にできる。 As described above, the outer wall 1 of the present embodiment has a two-layer structure of the gypsum board 41 and the reinforced gypsum board 42 as well as the places where the square steel pipe columns 2 are arranged and the inner wall plates 4 and 4A. it can.
そして、角形鋼管柱2の位置で屋内側に出っ張ることがなく、屋内側の形状は1時間準耐火構造でない外壁(例えば45分準耐火構造の外壁)を使用した場合と変わらないので、外壁1の耐火性能を向上させたうえで、従来の屋内側の設計をそのまま生かすことができる。 And since it does not protrude to the indoor side at the position of the square steel pipe column 2, the shape of the indoor side is not different from the case of using an outer wall that is not a quasi-refractory structure for one hour (for example, an outer wall having a quasi-refractory structure for 45 minutes). The conventional indoor design can be used as it is after improving the fire resistance of the.
以下、前記した実施の形態とは別の形態の実施例について、図2を参照しながら説明する。なお、前記実施の形態で説明した内容と同一乃至均等な部分の説明については同一符号を付して説明する。 Hereinafter, an example of a form different from the above-described embodiment will be described with reference to FIG. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.
この実施例では、前記実施の形態で説明した角形鋼管柱2よりもサイズの大きい角形鋼管柱2Aを使用する場合について説明する。 In this example, a case where a square steel pipe column 2A having a size larger than that of the square steel pipe column 2 described in the above embodiment is used will be described.
この角形鋼管柱2Aは、断面視正方形の1辺が120mm程度の角形鋼管を使って製作される。このため、前記実施の形態の外壁1と同じ壁厚の外壁1Aを製作すると、角形鋼管柱2Aの屋内側のスペースが、角形鋼管柱2を使用する場合に比べて狭くなる。 This square steel pipe column 2A is manufactured using a square steel pipe having one side of a square in a sectional view of about 120 mm. For this reason, when the outer wall 1A having the same wall thickness as the outer wall 1 of the above-described embodiment is manufactured, the space on the indoor side of the square steel pipe column 2A becomes narrower than when the square steel tube column 2 is used.
そこで、角形鋼管柱2Aの屋内面2bに対向する内壁板は、強化石こうボード42Aの1層構造にする。但し、この強化石こうボード42Aの厚さは、2層構造で使用する強化石こうボード42の厚さ(12〜13mm程度)よりも厚い15mm程度にする。 Therefore, the inner wall plate facing the indoor surface 2b of the square steel pipe column 2A has a one-layer structure of a reinforced gypsum board 42A. However, the thickness of the reinforced gypsum board 42A is about 15 mm thicker than the thickness (about 12 to 13 mm) of the reinforced gypsum board 42 used in the two-layer structure.
また、角形鋼管柱2Aの屋内面2bと強化石こうボード42Aとの間には、押出法ポリスチレンフォームによる断熱板52を介在させる。 A heat insulating plate 52 made of extruded polystyrene foam is interposed between the indoor surface 2b of the square steel pipe column 2A and the reinforced gypsum board 42A.
さらに、角形鋼管柱2Aの側面2cに隣接して立設させるコーナースタッド27には、断面視L字状の角材27aを取り付ける。また、この角材27aと強化石こうボード42Aとの間には、その隙間の幅に合わせて成形された木桟46を介在させる。 Furthermore, a square member 27a having an L-shaped cross-section is attached to a corner stud 27 that is erected adjacent to the side surface 2c of the square steel pipe column 2A. Further, a wooden cross 46 formed in accordance with the width of the gap is interposed between the square member 27a and the reinforced gypsum board 42A.
このように大きなサイズの角形鋼管柱2Aを使用する場合でも、1時間準耐火構造であれば、厚めの強化石こうボード42Aを1枚配置するだけで、上記した表1の判定基準を満足させることができる。 Even when such a large-sized square steel pipe column 2A is used, if it is a one-hour quasi-refractory structure, only one thick reinforced gypsum board 42A is disposed to satisfy the above-mentioned criteria of Table 1. Can do.
すなわち、角形鋼管柱2Aは、角形鋼管柱2に比べて熱容量が大きくなるので、その結果、柱自体の耐火性能が向上し、2層構造の内壁板4Aを角形鋼管柱2Aの屋内側に配設しなくても、1時間準耐火構造を満たすことができる。 That is, the square steel pipe column 2A has a larger heat capacity than the square steel tube column 2, and as a result, the fire resistance performance of the column itself is improved, and the two-layered inner wall plate 4A is arranged on the indoor side of the square steel tube column 2A. Even if it is not provided, the 1-hour quasi-refractory structure can be satisfied.
このため、サイズの大きな角形鋼管柱2Aを使用した場合でも、屋内側への出っ張りがなく、屋内側の壁面を面一にすることができるので、外壁1Aの耐火性能を向上させたうえで、従来の屋内側の設計をそのまま生かすことができる。 For this reason, even when a large-sized square steel pipe column 2A is used, there is no protrusion to the indoor side, and the wall surface on the indoor side can be made flush. Therefore, after improving the fire resistance of the outer wall 1A, The conventional indoor design can be used as it is.
なお、他の構成及び作用効果については、前記実施の形態と略同様であるので説明を省略する。 Other configurations and functions and effects are substantially the same as those in the above-described embodiment, and thus description thereof is omitted.
以上、図面を参照して、本発明の実施の形態を詳述してきたが、具体的な構成は、この実施の形態及び実施例に限らず、本発明の要旨を逸脱しない程度の設計的変更は、本発明に含まれる。 The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to the embodiment and the example, and the design change is within a range not departing from the gist of the present invention. Are included in the present invention.
例えば、前記実施の形態及び実施例では、角形鋼管柱2,2Aの側面2cの1/4〜1/3程度の範囲に加熱膨張シート6を貼ったが、これに限定されるものでなく、これより少なくても多くても所望する耐火性能が満足できればよい。 For example, in the said embodiment and Example, although the heating expansion sheet 6 was stuck in the range of about 1 / 4-1 / 3 of the side surface 2c of the square steel pipe pillars 2 and 2A, it is not limited to this, If it is less or more than this, it is sufficient if the desired fire resistance performance can be satisfied.
また、前記実施の形態及び実施例で示した寸法は例示であり、これに限定されるものではない。 Moreover, the dimension shown by the said embodiment and Example is an illustration, and is not limited to this.
さらに、前記実施の形態及び実施例では、ユニット建物の建物ユニット間の外壁1,1Aを例に説明したが、これに限定されるものではなく、前記実施の形態又は前記実施例と同様な外壁構造が存在する建物であれば、いずれの建物であっても本発明を適用することができる。 Furthermore, in the said embodiment and Example, although demonstrated as an example the outer wall 1 and 1A between the building units of a unit building, it is not limited to this, The outer wall similar to the said embodiment or the said Example The present invention can be applied to any building as long as it has a structure.
1,1A 外壁(外壁構造)
2,2A 角形鋼管柱
2a 屋外面
2b 屋内面
2c 側面
26 耐火シール材
27 コーナースタッド(間柱)
27a 角材(下地材)
3 鋼板外壁(耐火性外壁)
4,4A 内壁板
41 石こうボード
42 強化石こうボード
42A 強化石こうボード(内壁板)
5 グラスウール(断熱材)
6 加熱膨張シート
1,1A outer wall (outer wall structure)
2,2A Square steel pipe column 2a Outdoor surface 2b Indoor surface 2c Side surface 26 Fireproof sealing material 27 Corner stud (intermediate column)
27a Square material (base material)
3 Steel plate outer wall (fireproof outer wall)
4,4A Inner wall board 41 Gypsum board 42 Reinforced gypsum board 42A Reinforced gypsum board (inner wall board)
5 Glass wool (heat insulation)
6 Heating expansion sheet
Claims (7)
前記角形鋼管柱の前記屋外側の面と、その面に直交し前記断熱材が配設される側の前記角形鋼管柱の側面の少なくとも一部とに、連続して貼り付けられる加熱膨張シートと、
前記角形鋼管柱の側面に隣接して立設される下地材とを備え、
前記加熱膨張シートは、前記屋外側の面の略全面に貼り付けられるとともに、前記角形鋼管柱の側面と前記下地材との間に端部が介在されることを特徴とする外壁構造。 A fireproof outer wall is disposed on the outdoor side of the square columnar rectangular steel pipe column, an inner wall plate serving as a fireproof material is disposed on the indoor side, and a heat insulating material is disposed between the fireproof outer wall and the inner wall plate. The outer wall structure with fire resistance performance,
A heated expansion sheet that is continuously affixed to the outdoor-side surface of the rectangular steel pipe column and at least a part of the side surface of the rectangular steel pipe column that is orthogonal to the surface and on which the heat insulating material is disposed ; ,
A base material erected adjacent to the side surface of the square steel pipe column ,
The heat expansion sheet is attached to substantially the entire surface of the outdoor side, and an end wall is interposed between a side surface of the rectangular steel pipe column and the base material .
前記角形鋼管柱の前記屋外側の面と、その面に直交し前記断熱材が配設される側の前記角形鋼管柱の側面の少なくとも一部とに、連続して貼り付けられる加熱膨張シートを備え、
前記加熱膨張シートは、前記屋外側の面の略全面と前記側面の1/3〜1/4の範囲に貼り付けられることを特徴とする外壁構造。 A fireproof outer wall is disposed on the outdoor side of the square columnar rectangular steel pipe column, an inner wall plate serving as a fireproof material is disposed on the indoor side, and a heat insulating material is disposed between the fireproof outer wall and the inner wall plate. The outer wall structure with fire resistance performance,
A heating expansion sheet that is continuously attached to the outdoor side surface of the rectangular steel pipe column and at least a part of the side surface of the rectangular steel pipe column that is orthogonal to the surface and on which the heat insulating material is disposed. Prepared,
The outer wall structure , wherein the heat-expandable sheet is affixed to substantially the entire surface of the outdoor side surface and 1/3 to 1/4 of the side surface .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013224057A JP5752208B2 (en) | 2013-10-29 | 2013-10-29 | Exterior wall structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013224057A JP5752208B2 (en) | 2013-10-29 | 2013-10-29 | Exterior wall structure |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009117405A Division JP5406590B2 (en) | 2009-05-14 | 2009-05-14 | Exterior wall structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014040773A JP2014040773A (en) | 2014-03-06 |
JP5752208B2 true JP5752208B2 (en) | 2015-07-22 |
Family
ID=50393211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013224057A Active JP5752208B2 (en) | 2013-10-29 | 2013-10-29 | Exterior wall structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5752208B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105064529A (en) * | 2015-09-01 | 2015-11-18 | 湖南大学 | Prefabricated and assembled large-board shear wall structure with concealed bracings |
CN105569222A (en) * | 2016-01-11 | 2016-05-11 | 湖南大学 | Vertical connection technology for precast assembled large panel shear walls with concealed supports |
CN105544801A (en) * | 2016-01-28 | 2016-05-04 | 湖南大学 | Bolted connection technique for prefabricated large plate shear wall provided with concealed bracing and construction method |
CN111719724A (en) * | 2020-07-02 | 2020-09-29 | 崔青明 | Fireproof steel structure for building |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3257111B2 (en) * | 1993-01-26 | 2002-02-18 | ミサワホーム株式会社 | Fire resistant structure |
JPH09256494A (en) * | 1996-03-22 | 1997-09-30 | Misawa Homes Co Ltd | Jointing structure and jointing method for wall finishing material |
JPH1136475A (en) * | 1997-07-17 | 1999-02-09 | Dantani Plywood Co Ltd | Wall panel |
JP2001049760A (en) * | 1999-08-04 | 2001-02-20 | Sekisui Chem Co Ltd | Fireproof covering unit for steel pipe column, fireproof external wall structure, and fireproof partitioning wall structure |
JP4610819B2 (en) * | 2001-09-28 | 2011-01-12 | 大和ハウス工業株式会社 | Fireproof structure of wall with load bearing material inside |
JP2004300779A (en) * | 2003-03-31 | 2004-10-28 | Sekisui Chem Co Ltd | Outer wall structure, building unit, unit building, and building |
-
2013
- 2013-10-29 JP JP2013224057A patent/JP5752208B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2014040773A (en) | 2014-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5752208B2 (en) | Exterior wall structure | |
JP5139671B2 (en) | Fireproof renovated door using existing door frame | |
EP3130721B1 (en) | Multilayered renovation building element and outer surface of building | |
KR101164060B1 (en) | Structure of fireproofing between floors in curtain wall and construct method thereof | |
JP5986723B2 (en) | Heat insulation reforming method and heat insulating panel mounting structure for heat insulation reforming | |
JP5406590B2 (en) | Exterior wall structure | |
JP2018087424A (en) | Panel unit and curtain wall equipped with the same | |
JP2011012465A (en) | Building structure and unit building | |
KR20200018164A (en) | A fire door | |
JP6286346B2 (en) | Joint structure of outer wall panel | |
JP6377802B2 (en) | Joinery | |
JP6993678B2 (en) | Insulation and seismic structure of wooden building | |
Hun et al. | Evaluation of Air Barriers for Residential Buildings | |
RU160452U1 (en) | WALL MULTILAYER PANEL | |
JP6262280B2 (en) | Joinery | |
US20180298604A1 (en) | Building element and associated reinforcing device | |
KR101654275B1 (en) | the assembly waterproof unit structure | |
JP6180915B2 (en) | Incombustible ventilation material | |
JP6846163B2 (en) | Exterior wall structure of the building | |
JP6603353B2 (en) | Joinery | |
JP3153914U (en) | Siding panel | |
RU171102U1 (en) | SOUND-PROTECTING FENCING OF REDUCED FIRE HAZARD | |
JP2017014798A (en) | High sound insulation parting wall | |
KR101479031B1 (en) | the assembly waterproof unit structure | |
Zhivov et al. | Improved Building Airtightness |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20141014 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141128 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150421 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150519 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 5752208 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |