JP4421584B2 - Fireproof seal body and fireproof seal structure - Google Patents

Fireproof seal body and fireproof seal structure Download PDF

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JP4421584B2
JP4421584B2 JP2006227563A JP2006227563A JP4421584B2 JP 4421584 B2 JP4421584 B2 JP 4421584B2 JP 2006227563 A JP2006227563 A JP 2006227563A JP 2006227563 A JP2006227563 A JP 2006227563A JP 4421584 B2 JP4421584 B2 JP 4421584B2
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fireproof
fireproof seal
foam
inorganic foam
cement
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和充 坪沼
直昭 杉尾
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日本カイザー株式会社
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Description

本願発明は耐火シール体および耐火シール構造に関するものである。   The present invention relates to a fireproof seal body and a fireproof seal structure.

建物より突出するバルコニーや外廊下などのコンクリート床スラブがコンクリート躯体への熱橋となりやすく、このコンクリート床スラブからのコンクリート躯体内部への熱強防止手段として、図１８に示すように、コンクリート床スラブ３４とコンクリート躯体３５との間に断熱材３６を設けた構造が知られている。この断熱材３６は、コンクリート床スラブ３４とコンクリート躯体３５とにわたって配筋された鉄筋３７を火災時における熱から保護しなければならないため、耐火性能を有する耐火シール構造３８となっている。また、その他の耐火シール構造としては、例えば特開平１０−２４５９１１号の発明が知られている。
特開平１０−２４５９１１号公報 Concrete floor slabs such as balconies and outer corridors protruding from the building are likely to become thermal bridges to the concrete frame, and as a means of preventing thermal strength from the concrete floor slab to the inside of the concrete frame, as shown in FIG. A structure in which a heat insulating material 36 is provided between 34 and a concrete housing 35 is known. The heat insulating material 36 has a fireproof seal structure 38 having fireproof performance because the reinforcing bars 37 arranged over the concrete floor slab 34 and the concrete frame 35 must be protected from heat in the event of a fire. As another fireproof seal structure, for example, the invention of Japanese Patent Laid-Open No. 10-245911 is known.
JP-A-10-245911

しかし、上記の耐火シール構造の断熱材はロックウールなどの人造鉱物繊維断熱材を使用しているため、コンクリート床スラブとコンクリート躯体との間への設置が型枠を必要とするため非常に困難で煩雑になっていた。   However, since the heat insulation material with the above fireproof seal structure uses artificial mineral fiber heat insulation material such as rock wool, it is very difficult to install between the concrete floor slab and the concrete frame. It was complicated.

本願発明はこれらの問題に鑑みてなされたものであり、その目的は、煩雑な手間を必要としない耐火シール体および耐火シール構造を提供することである。   This invention is made | formed in view of these problems, The objective is to provide the fireproof seal body and fireproof seal structure which do not require a troublesome labor.

以上の課題を解決するための耐火シール構造は、建物におけるバルコニーとコンクリート躯体との接合部の隙間に嵌め込まれる耐火シール体が、前記隙間に対応する適宜大きさの無機系発泡体と、該発泡体の上部貫通孔挿通して前記バルコニーとコンクリート躯体とにわたって配筋される上端支持筋と、前記発泡体の下部貫通孔に挿通して前記バルコニーとコンクリート躯体とにわたって配筋され前記上端支持筋より大径の下端支持材と、前記発泡体の下面に塗布され水分の蒸発によって火災の熱から保護するセメント系接着剤と、該セメント系接着剤を介して貼着され下側における火災の熱から前記上端若しくは下端の支持筋を保護する無機系発泡板とからなることである。また、前記上部貫通孔と下部貫通孔とのそれぞれにおける内周面に、セメント系接着剤を適宜厚さ塗布してあることを含むものである。
更に、本発明に係る耐火シール構造の要旨は、建物におけるカーテンウォールと梁材との層間隙間に嵌め込まれる耐火シール体が、前記層間隙間に対応する適宜大きさで前記梁材のフランジ上面の幅半分に設置され先端側が前記カーテンウォールの裏面側に当接されて前記層隙間を塞ぐ無機系発泡体と、該発泡体の下面に塗布され水分の蒸発によって火災の熱から保護するセメント系接着剤と、該セメント系接着剤を介して貼着され下側における火災の熱から前記カーテンウォールのファスナーを保護する無機系発泡板とからなり、前記耐火シール体の下に配設される梁材が、その表面を耐火材で被覆されていることである。 The fireproof seal structure for solving the above-described problem is that an inorganic foam having an appropriate size corresponding to the gap, the fireproof seal fitted in the gap between the joint of the balcony and the concrete frame in the building, and the foam An upper end support bar that is inserted through the upper through-hole of the body and extends over the balcony and the concrete frame, and a upper end support bar that is inserted through the lower through-hole of the foam and extended between the balcony and the concrete frame. A large-diameter lower end support material, a cement-based adhesive that is applied to the lower surface of the foam and protects against the heat of the fire by evaporation of moisture, and is attached via the cement-based adhesive to protect from the heat of the fire on the lower side. It consists of an inorganic type foam board which protects the supporting reinforcement of the said upper end or a lower end. In addition, a cement adhesive is appropriately applied to the inner peripheral surface of each of the upper through hole and the lower through hole.
Further, the gist of the fireproof seal structure according to the present invention is that a fireproof seal body fitted in an interlayer gap between a curtain wall and a beam material in a building has an appropriate size corresponding to the interlayer gap and a width of a flange upper surface of the beam material. An inorganic foam that is installed in half and the front end abuts against the back side of the curtain wall to close the gap between the layers, and a cement adhesive that is applied to the lower surface of the foam and protects from the heat of the fire by evaporation of moisture And an inorganic foam plate that is attached via the cement adhesive and protects the curtain wall fastener from the heat of the fire on the lower side, and a beam material disposed under the fireproof seal body The surface is covered with a refractory material.

適宜大きさの無機系発泡体の火に晒される側にセメント系接着剤を介して無機系発泡板を接着したことにより、この無機系発泡板側が火災による熱で熱せられたとしてもセメント系接着剤も断熱効果を発揮するため、十分な耐火性能が発揮される。また無機系発泡体に設けた貫通孔により鉄筋を簡単に配筋することができる。また無機系発泡体および無機系発泡板を炭酸カルシウム板または炭酸アルミニウム板にしたことにより、十分な耐火性能を確保することができる。また耐火シール板を、躯体とバルコニーの接合部における隙間、柱と耐震補強壁の縁切り部における隙間、カーテンウォールと梁材との層間隙間のいずれかに嵌め込んだことにより、十分な耐火性能を確保することができる。また従来のロックウールなどの人造鉱物繊維断熱材を設置する場合はポリエチレンシートにより袋詰め等の形状保持型枠が必要となるが、耐火シール体は形状保持性能を有するため、現場打ちコンクリートを打設する際の形状保持型枠を必要としない。   Even if the inorganic foam board is heated by the heat of a fire by adhering the inorganic foam board to the side exposed to the fire of an appropriately sized inorganic foam through a cement adhesive, Since the agent also exhibits a heat insulating effect, sufficient fire resistance performance is exhibited. Further, the reinforcing bars can be easily arranged through the through holes provided in the inorganic foam. Moreover, sufficient fire resistance can be ensured by using the inorganic foam and the inorganic foam plate as a calcium carbonate plate or an aluminum carbonate plate. In addition, the fireproof seal plate is fitted into any of the gaps at the joint between the frame and the balcony, the gaps at the edges of the columns and the seismic reinforcement walls, and the interlayer gap between the curtain wall and the beam. Can be secured. In addition, when installing conventional mineral fiber insulation such as rock wool, a shape retention formwork such as bagging with polyethylene sheets is required. However, because the fireproof seal has shape retention performance, cast-in-place concrete is cast. No shape-retaining formwork is required for installation.

以下、本願発明の耐火シール体および耐火シール構造の実施の形態について説明する。はじめに耐火シール体の実施の形態について説明し、次に、この耐火シール体を使用した耐火シール構造の実施の形態について説明するが、各実施の形態において同じ構成は同じ符号を付して説明し、異なった構成にのみ異なった符号を付して説明する。   Hereinafter, embodiments of the fireproof seal body and fireproof seal structure of the present invention will be described. First, an embodiment of a fireproof seal body will be described, and then an embodiment of a fireproof seal structure using the fireproof seal body will be described. In each embodiment, the same components are denoted by the same reference numerals and described. Only different components will be described with different reference numerals.

図１は第１の実施の形態の耐火シール体１であり、この耐火シール体１は、適宜大きさの矩形状の無機系発泡体２と無機系発泡板３とから構成され、この無機系発泡板３が無機系発泡体２の火に晒される側（図１において下側）にセメント系接着剤４を介してが接着されている。この無機系発泡体２は適宜厚さの炭酸カルシウム板または炭酸アルミニウム板であり、鉄筋を通すための貫通孔５、６が上下部に開口され、下部の貫通孔６は上部の貫通孔５よりも大径になっている。この無機系発泡体２と無機系発泡板３とはそれぞれ耐火性能が高いが、セメント系接着剤４もこれらに劣らず耐火性能が高いため、これらを有機的に組み合わせることにより、耐火性能をさらに高めることができる。また無機系発泡体２は嵌合される隙間の大きさに合わせた厚さに一体形成される。   FIG. 1 shows a refractory seal body 1 according to the first embodiment. The refractory seal body 1 is composed of a rectangular inorganic foam 2 and an inorganic foam plate 3 having an appropriate size. The foamed plate 3 is bonded to the side of the inorganic foam 2 exposed to fire (the lower side in FIG. 1) via a cement adhesive 4. The inorganic foam 2 is a calcium carbonate plate or an aluminum carbonate plate having an appropriate thickness, and through holes 5 and 6 for passing reinforcing bars are opened in the upper and lower parts, and the lower through hole 6 is formed from the upper through hole 5. Also has a large diameter. Although the inorganic foam 2 and the inorganic foam plate 3 each have high fire resistance, the cement adhesive 4 also has high fire resistance, which is not inferior to these. Can be increased. The inorganic foam 2 is integrally formed to a thickness that matches the size of the gap to be fitted.

また図２は第２の実施の形態の耐火シール体７である。この耐火シール体７は、無機系発泡体２の上下両面にセメント系接着剤４を介して無機系発泡板３が接着されたもの、すなわち第１の実施の形態の耐火シール体１の上面にもセメント系接着剤４を介して無機系発泡板３を接着したものである。これは上下両面が火に晒されたとしても、その熱を無機系発泡板３とセメント系接着剤４とで上下両面から遮断するものであり、十分な耐火性能を保持することができる。   FIG. 2 shows a fireproof seal 7 according to the second embodiment. The refractory seal body 7 is obtained by bonding the inorganic foam plate 3 to the upper and lower surfaces of the inorganic foam 2 via a cement adhesive 4, that is, on the upper surface of the refractory seal body 1 of the first embodiment. Also, the inorganic foamed plate 3 is bonded through a cement adhesive 4. Even if the upper and lower surfaces are exposed to fire, the heat is blocked from the upper and lower surfaces by the inorganic foamed plate 3 and the cement adhesive 4, and sufficient fire resistance can be maintained.

また図３は第３の実施の形態の耐火シール体８である。この耐火シール体８は、無機系発泡体２の火に晒される側をセメント系接着剤４で被覆したものである。すなわち、第１の実施の形態の無機系発泡体１の下面をセメント系接着剤４で被覆したものである。このセメント系接着剤４も無機系発泡板３と同じように、十分な耐火性能を有するため、火災による熱から鉄筋など保護するものである。これは上記のように無機系発泡体２の片面でだけではなく、図４に示すように、無機系発泡体２の上下両面をセメント系接着剤４で被覆することもできる。   FIG. 3 shows a fireproof seal 8 according to the third embodiment. This fireproof seal 8 is obtained by coating the side of the inorganic foam 2 exposed to fire with a cement adhesive 4. That is, the lower surface of the inorganic foam 1 of the first embodiment is covered with the cement adhesive 4. Since the cement adhesive 4 has sufficient fire resistance like the inorganic foam plate 3, it protects the reinforcing bars and the like from heat due to fire. This is not limited to one side of the inorganic foam 2 as described above, but the upper and lower surfaces of the inorganic foam 2 can be covered with a cement adhesive 4 as shown in FIG.

また、第４の実施の形態の耐火シール体９として、図５に示すように、上記の第１〜第３の実施の形態の耐火シール体１、７、８の無機系発泡体２の上下部における貫通孔５、６の内周面にセメント系接着剤４を適宜厚さ塗布したものとすることもできる。このように貫通孔５、６の内周面にセメント系接着剤４を適宜厚さ塗布すると、この貫通孔５、６に鉄筋を通したときに鉄筋の外周面がセメント系接着剤４で被覆されるため、さらに耐火性能が高くなる。   Moreover, as shown in FIG. 5, as the fireproof seal body 9 of 4th Embodiment, the upper and lower sides of the inorganic foam 2 of the fireproof seal bodies 1, 7, and 8 of said 1st-3rd embodiment are shown. Alternatively, the cement adhesive 4 may be applied to the inner peripheral surfaces of the through holes 5 and 6 at appropriate thicknesses. When the cement adhesive 4 is applied to the inner peripheral surfaces of the through holes 5 and 6 with appropriate thickness in this way, the outer peripheral surface of the reinforcing bars is covered with the cement adhesive 4 when the reinforcing bars are passed through the through holes 5 and 6. Therefore, the fire resistance is further increased.

また図６は第５の実施の形態の耐火シール体１０である。この耐火シール体１０は、無機系発泡体２に鉄筋を通す貫通孔５、６が開口されていないものであり、これ以外は上記の第１の実施の形態の耐火シール体１と同じ構成である。   FIG. 6 shows a fireproof seal 10 according to the fifth embodiment. This fireproof sealing body 10 is one in which the through holes 5 and 6 through which the reinforcing bars are passed are not opened in the inorganic foam 2, and other than this, it has the same configuration as the fireproof sealing body 1 of the first embodiment. is there.

また第６の実施の形態の耐火シール体１１として、図７に示すように、第５の実施の形態の耐火シール体１０の上面にもセメント系接着剤４を介して無機系発泡板３を接着することもでき、無機系発泡体２には鉄筋を通す貫通孔５、６は開口されていない。この耐火シール体１１も上記と同じように、上下両面が保護されて火災による熱から保護されて十分な耐火性能を保持する。   Moreover, as shown in FIG. 7, as the fireproof seal body 11 of the sixth embodiment, the inorganic foamed plate 3 is also provided on the upper surface of the fireproof seal body 10 of the fifth embodiment via the cement adhesive 4. The inorganic foam 2 does not have through holes 5 and 6 through which reinforcing bars pass. Similarly to the above, this refractory seal body 11 is protected from both the upper and lower surfaces to be protected from heat due to fire, and maintains sufficient fire resistance.

さらに鉄筋を通す貫通孔５、６のない無機系発泡体２の片面または両面をセメント系接着剤４のみで被覆することもでき、いずれも十分な耐火性能を保持することができる。これは第３の実施の形態の耐火シール体８と同じように、無機系発泡体２の片面または両面に直接セメント系接着剤４を被覆するものであり、無機系発泡板３を省略したものである。   Furthermore, one side or both sides of the inorganic foam 2 without the through holes 5 and 6 through which the reinforcing bars pass can be covered only with the cement adhesive 4, and both can maintain sufficient fire resistance. This is similar to the fireproof seal body 8 of the third embodiment, in which the cement-based adhesive 4 is directly coated on one side or both sides of the inorganic foam 2 and the inorganic foam plate 3 is omitted. It is.

また第７の実施の形態の耐火シール体１２として、上記の第１〜第６の実施の形態の耐火シール体１、７、８、９、１０、１１における無機系発泡体２を、図８に示すように、薄い発泡板２ａを複数枚重ね合わせて形成することもできる。   Moreover, as the fireproof seal body 12 of the seventh embodiment, the inorganic foam 2 in the fireproof seal bodies 1, 7, 8, 9, 10, and 11 of the first to sixth embodiments is shown in FIG. As shown in FIG. 2, a plurality of thin foam plates 2a can be formed to overlap each other.

また第８の実施の形態の耐火シール体１３として、図９に示すように、上記の第１、第２、第４〜第７の実施の形態の耐火シール体１、７、９、１０、１１、１２における無機系発泡板３を複数枚として、これらをセメント系接着剤４を介して無機系発泡体２に接着することもできる。   Moreover, as shown in FIG. 9, as the fireproof seal body 13 of the eighth embodiment, the fireproof seal bodies 1, 7, 9, 10, of the first, second, and fourth to seventh embodiments described above. A plurality of the inorganic foamed plates 3 in 11 and 12 can be bonded to the inorganic foamed material 2 via the cement adhesive 4.

また、上記の第１〜第４、第７および第８の実施の形態の耐火シール体１、７、８、９、１２、１３の無機系発泡体２における貫通孔５、６は上下部が同径、または上部が下部よりも大径であってもよい。   In addition, the through holes 5 and 6 in the inorganic foam 2 of the fireproof seal bodies 1, 7, 8, 9, 12, and 13 according to the first to fourth, seventh, and eighth embodiments have upper and lower portions. The same diameter, or the upper part may be larger than the lower part.

また、上記の実施の形態の耐火シール体における無機系発泡体２は上記のような炭酸カルシウム板または炭酸アルミニウム板に限らず、耐熱性のあるものならそれでもよい。さらに、セメント系接着剤に限らず、モルタル、石膏および珪藻土などが混合された接着剤であってもよい。   In addition, the inorganic foam 2 in the fireproof seal body of the above embodiment is not limited to the calcium carbonate plate or the aluminum carbonate plate as described above, but may be any heat resistant one. Furthermore, it is not limited to a cement adhesive, and may be an adhesive mixed with mortar, gypsum, diatomaceous earth, and the like.

また図１０および図１１は第１の実施の形態の耐火シール体１を、バルコニー１４とコンクリート躯体１５との接合部に設置した耐火シール構造１６であり、無機系発泡体２の上部の貫通孔５にはバルコニー１４とコンクリート躯体１５とにわたって配筋された上端支持筋１７が挿入され、前記貫通孔５よりも大径の下部の貫通孔６にはバルコニー１４とコンクリート躯体１５とにわたって配設されたステンレス製の下端支持材１８が挿入され、該下端支持材１８の両端部には支圧板１９が設けられている。この耐火シール体１はバルコニー１４とコンクリート躯体１５との接合部の全長にわたって設置されており、適宜長さの耐火シール体１を長さ方向に連続して接合している。   10 and 11 show a fireproof seal structure 16 in which the fireproof seal body 1 according to the first embodiment is installed at the joint between the balcony 14 and the concrete housing 15, and a through hole in the upper part of the inorganic foam 2. 5 is inserted with the upper support bars 17 arranged over the balcony 14 and the concrete housing 15, and the lower through-hole 6 having a diameter larger than the through-hole 5 is arranged over the balcony 14 and the concrete housing 15. The lower end support member 18 made of stainless steel is inserted, and pressure bearing plates 19 are provided at both ends of the lower end support member 18. This refractory seal body 1 is installed over the entire length of the joint between the balcony 14 and the concrete casing 15, and the refractory seal body 1 having an appropriate length is continuously joined in the length direction.

また無機系発泡体２の下面にはセメント系接着剤４を介して無機系発泡板３が接着されているため、下側（下階）における火災による熱から下端支持材１８および上端支持筋１７が保護される。これらは無機系発泡板３、セメント系接着剤４および無機系発泡体２でそれぞれ保護されるが、セメント系接着剤４中における水分が火災による熱で蒸発することによっても下端支持材１８および上端支持筋１７が保護される。この耐火シール体１は上端支持筋１７と下端支持材１８との貫通孔５、６への挿入によってバルコニー１４とコンクリート躯体１５との接合部１６における隙間２０に設置されるが、この他にも無機系発泡体２の両側面にセメント系接着剤４を塗布して行うことができる。このように無機系発泡体２の両側面にセメント系接着剤４を塗布すると、無機系発泡体２の全面がセメント系接着剤４で被覆されるため耐火性能がさらに高められる。   In addition, since the inorganic foam plate 3 is bonded to the lower surface of the inorganic foam 2 through the cement adhesive 4, the lower end support member 18 and the upper end support bar 17 are affected by heat from the fire on the lower side (lower floor). Is protected. These are protected by the inorganic foam plate 3, the cement adhesive 4 and the inorganic foam 2, respectively. However, the lower end support 18 and the upper end are also formed when water in the cement adhesive 4 evaporates due to heat from a fire. The support muscle 17 is protected. This fireproof seal body 1 is installed in the gap 20 at the joint 16 between the balcony 14 and the concrete housing 15 by inserting the upper end support bar 17 and the lower end support member 18 into the through holes 5 and 6. It can be performed by applying cement adhesive 4 to both side surfaces of inorganic foam 2. When the cement adhesive 4 is applied to both side surfaces of the inorganic foam 2 in this way, the entire surface of the inorganic foam 2 is covered with the cement adhesive 4 so that the fire resistance is further enhanced.

なお、この耐火シール構造１６には耐火シール体１の他にも、第２〜第４、第７および第８の実施の形態の耐火シール体７、８、９、１２、１３を使用することもでき、この場合も上記と同様の効果を得ることができる。   In addition to the fireproof seal body 1, the fireproof seal bodies 7, 8, 9, 12, and 13 of the second to fourth, seventh, and eighth embodiments are used for the fireproof seal structure 16. In this case, the same effect as described above can be obtained.

また図１２は、第５の実施の形態の耐火シール体１０を、カーテンウォール２１と梁材２２との層間隙間２３に嵌め込んだ耐火シール構造２４であり、鉄骨梁のフランジ２２ａの上面の幅半分に設置されると共に、先端側はカーテンウオール２１の裏面側に当接させて層間隙間２３を塞いでいる。そして、このフランジ２２ａの上面からカーテンウオール２１の裏面にかけた下面にセメント系接着剤４を介して無機系発泡板３が接着されている。そのため下階における火災による熱からカーテンウオール２１のファスナーなどが保護される。また鉄骨梁２２の表面にはロックウールなどの耐火材２５が被覆されている。   FIG. 12 shows a fireproof seal structure 24 in which the fireproof seal body 10 of the fifth embodiment is fitted in the interlayer gap 23 between the curtain wall 21 and the beam material 22, and the width of the upper surface of the flange 22a of the steel beam. In addition to being installed in half, the tip side is in contact with the back side of the curtain wall 21 to block the interlayer gap 23. And the inorganic type foam board 3 is adhere | attached through the cement adhesive 4 on the lower surface applied to the back surface of the curtain wall 21 from the upper surface of this flange 22a. Therefore, the fasteners of the curtain wall 21 and the like are protected from the heat from the fire on the lower floor. The surface of the steel beam 22 is covered with a refractory material 25 such as rock wool.

なお、この耐火シール体１０の他にも、第６の実施の形態の耐火シール体１１を使用することもでき、この場合も上記と同様の効果を得ることができる。   In addition to the fireproof seal body 10, the fireproof seal body 11 of the sixth embodiment can also be used, and in this case, the same effect as described above can be obtained.

また図１３は、第２の実施の形態の耐火シール体７を、柱２６と耐震補強壁２７の縁切り部における隙間２８に設置した耐火シール構造２９である。この隙間２８は構造体に及ぼす影響を極力小さくするために、耐震補強壁２７の剛性を無視できるように構造体と耐震補強壁２７との間に設置するものである。この耐火シール体７は無機系発泡体２の前後両面にセメント系接着剤４を介して無機系発泡板３を接着したものであり、両側における火災による熱から柱２６と耐震補強壁２７とにわたって配筋された鉄筋３０が保護される。また、この耐火シール体７も無機系発泡体２の両側面にセメント系接着剤４を塗布して縁切り部２８における隙間２９に設置することができる。   FIG. 13 shows a fireproof seal structure 29 in which the fireproof seal body 7 of the second embodiment is installed in the gap 28 in the edge cut portion between the column 26 and the seismic reinforcement wall 27. The gap 28 is provided between the structure and the earthquake-resistant reinforcement wall 27 so that the rigidity of the earthquake-resistant reinforcement wall 27 can be ignored in order to minimize the influence on the structure. This fireproof sealing body 7 is obtained by adhering the inorganic foam plate 3 to both front and rear surfaces of the inorganic foam 2 via a cement adhesive 4, and from the heat due to fire on both sides to the column 26 and the seismic reinforcement wall 27. The arranged reinforcing bars 30 are protected. In addition, the refractory seal body 7 can also be installed in the gap 29 in the edge cut portion 28 by applying the cement adhesive 4 on both side surfaces of the inorganic foam 2.

図１４および図１５は、第１の実施の形態の耐火シール体１の耐火性能試験を示したものである。これは図１４に示すような、厚さ５０ｍｍの薄型耐火シール体１ａと、厚さ８０ｍｍの厚型耐火シール体１ｂが設置され、かつこれらに鋼材３１が配設された縦が１１００ｍｍで、横が１８１０ｍｍの大きさのコンクリート床板３２の下面を加熱したものである。   FIG. 14 and FIG. 15 show a fire resistance performance test of the fireproof seal body 1 of the first embodiment. As shown in FIG. 14, a thin fireproof seal body 1a having a thickness of 50 mm and a thick fireproof seal body 1b having a thickness of 80 mm are installed, and a steel material 31 is disposed on the thin fireproof seal body 1b. Is obtained by heating the lower surface of the concrete floor board 32 having a size of 1810 mm.

これはコンクリート床板３２の下側からＩＳ０８３４の耐火標準加熱曲線にしたがって６０分間加熱した結果、薄型耐火シール体１ａと厚型耐火シール体１ｂとも、非加熱側へ１０秒を超えて継続する火炎の噴出、非加熱面で１０秒を超えて継続する発炎、火炎が通る亀裂などの損傷および隙間の発生はそれぞれ全く無かった。   As a result of heating for 60 minutes from the lower side of the concrete floor board 32 according to the fire resistance standard heating curve of IS0834, both of the thin fireproof seal body 1a and the thick fireproof seal body 1b continue to the non-heated side for more than 10 seconds. There were no spouts, flames that continued for more than 10 seconds on the non-heated surface, damage such as cracks through which the flames passed, and no gaps.

また、図１５に示すように、薄型耐火シール体１ａにおける鋼材３１の最高温度が１６８℃、厚型耐火シール体１ｂにおける鋼材３１の最高温度が１５５℃であり、薄型耐火シール体１ａの上面の最高温度が４２℃、厚型耐火シール体１ｂの上面の最高温度が３９℃であった。この結果、第１の実施の形態の耐火シール体１が十分な耐火性能を有していることを確認することができた。   Moreover, as shown in FIG. 15, the maximum temperature of the steel material 31 in the thin fireproof seal body 1a is 168 ° C., and the maximum temperature of the steel material 31 in the thick fireproof seal body 1b is 155 ° C. The maximum temperature was 42 ° C., and the maximum temperature on the upper surface of the thick fireproof seal 1b was 39 ° C. As a result, it was confirmed that the fireproof seal body 1 of the first embodiment had sufficient fireproof performance.

また第３の実施の形態の耐火シール体８も上記と同様に十分な耐火性能を有していることを確認することができた。   Moreover, it was confirmed that the fireproof sealing body 8 of the third embodiment also has sufficient fireproof performance as described above.

第１の実施の形態の耐火シール体であり、（１）は正面図、（２）は同断面図である。It is a fireproof seal body of a 1st embodiment, (1) is a front view and (2) is the sectional view. 第２の実施の形態の耐火シール体であり、（１）は正面図、（２）は同断面図である。It is a fireproof seal body of a 2nd embodiment, (1) is a front view and (2) is the sectional view. 第３の実施の形態の耐火シール体であり、（１）は正面図、（２）は同断面図である。It is a fireproof seal body of a 3rd embodiment, (1) is a front view and (2) is the sectional view. 第３の実施の形態の耐火シール体であり、（１）は正面図、（２）は同断面図である。It is a fireproof seal body of a 3rd embodiment, (1) is a front view and (2) is the sectional view. 第４の実施の形態の耐火シール体の断面図である。It is sectional drawing of the fireproof sealing body of 4th Embodiment. 第５の実施の形態の耐火シール体であり、（１）は正面図、（２）は同断面図である。It is a fireproof seal body of a 5th embodiment, (1) is a front view and (2) is the sectional view. 第６の実施の形態の耐火シール体であり、（１）は正面図、（２）は断面図である。It is the fireproof seal body of 6th Embodiment, (1) is a front view, (2) is sectional drawing. 第７の実施の形態の耐火シール体の断面図である。It is sectional drawing of the fireproof sealing body of 7th Embodiment. 第８の実施の形態の耐火シール体の断面図である。It is sectional drawing of the fireproof sealing body of 8th Embodiment. 第１の実施の形態の耐火シール構造の断面図である。It is sectional drawing of the fireproof seal structure of 1st Embodiment. 第１の実施の形態の耐火シール構造の断面図である。It is sectional drawing of the fireproof seal structure of 1st Embodiment. （１）および（２）は第２の実施の形態の耐火シール構造の断面図である。(1) And (2) is sectional drawing of the fireproof seal structure of 2nd Embodiment. 第３の実施の形態の耐火シール構造であり、（１）は正面図、（２）は同断面図である。It is the fireproof seal structure of 3rd Embodiment, (1) is a front view, (2) is the same sectional drawing. （１）は耐火性能試験で使用した第１の実施の形態の耐火シール体の平面図、（２）および（３）は同断面図である。(1) is a top view of the fireproof sealing body of 1st Embodiment used by the fireproof performance test, (2) And (3) is the same sectional drawing. 耐火シール体の耐火性能試験を示したグラフ図である。It is the graph which showed the fireproof performance test of the fireproof seal body. 従来の耐火シール構造の断面図である。It is sectional drawing of the conventional fireproof seal structure.

符号の説明Explanation of symbols

１、７、８、９、１０、１１、１２、１３ 耐火シール体
２ 無機発泡体
２ａ 発泡板
３ 無機発泡板
４ セメント系接着剤
５、６ 貫通孔
１４ バルコニー
１５ コンクリート躯体
１６、２４、２９、３８ 耐火シール構造
１７ 上端支持筋
１８ 下端支持材
１９ 支圧板
２０、２８ 隙間
２１ カーテンウオール
２２ 梁材
２２ａ フランジ
２３ 層間隙間
２５ 耐火材
２６ 柱
２７ 耐震補強壁
３０ 鉄筋
３１ 鋼材
３２ コンクリート床板
３４ コンクリート床スラブ
３５ コンクリート躯体
３６ 断熱材
３７ 鉄筋 DESCRIPTION OF SYMBOLS 1, 7, 8, 9, 10, 11, 12, 13 Fireproof sealing body 2 Inorganic foam 2a Foam board 3 Inorganic foam board 4 Cement adhesive 5, 6 Through-hole 14 Balcony 15 Concrete frame 16, 24, 29, DESCRIPTION OF SYMBOLS 38 Fireproof seal structure 17 Upper end support bar 18 Lower end support material 19 Bearing plate 20, 28 Clearance 21 Curtain wall 22 Beam material 22a Flange 23 Interlaminar gap 25 Refractory material 26 Column 27 Seismic reinforcement wall 30 Reinforcement 31 Steel material 32 Concrete floor slab 34 Concrete floor slab 35 Concrete frame 36 Heat insulation 37 Reinforcing bar

Claims (3)

建物におけるバルコニーとコンクリート躯体との接合部の隙間に嵌め込まれる耐火シール体が、前記隙間に対応する適宜大きさの無機系発泡体と、該発泡体の上部貫通孔挿通して前記バルコニーとコンクリート躯体とにわたって配筋される上端支持筋と、前記発泡体の下部貫通孔に挿通して前記バルコニーとコンクリート躯体とにわたって配筋され前記上端支持筋より大径の下端支持材と、前記発泡体の下面に塗布され水分の蒸発によって火災の熱から保護するセメント系接着剤と、該セメント系接着剤を介して貼着され下側における火災の熱から前記上端若しくは下端の支持筋を保護する無機系発泡板とからなること、A fireproof sealing body fitted in a gap between a balcony and a concrete casing in a building includes an inorganic foam having an appropriate size corresponding to the gap, and an upper through hole of the foam is inserted into the balcony and the concrete casing. An upper support bar that is arranged over the lower through hole of the foam, and a lower end support member that is arranged over the balcony and the concrete frame and has a larger diameter than the upper support bar, and a lower surface of the foam A cement-based adhesive that is applied to and protected from the heat of fire by evaporation of moisture, and an inorganic foam that is attached via the cement-based adhesive and that protects the upper or lower support bars from the heat of the fire on the lower side Consisting of a board,
を特徴とする耐火シール構造。  Fireproof seal structure characterized by 上部貫通孔と下部貫通孔とのそれぞれにおける内周面に、セメント系接着剤を適宜厚さ塗布してあること、  A cement-based adhesive is appropriately applied to the inner peripheral surface of each of the upper and lower through-holes,
を特徴とする請求項１に記載の耐火シール構造。  The fireproof seal structure according to claim 1, wherein: 建物におけるカーテンウォールと梁材との層間隙間に嵌め込まれる耐火シール体が、前記層間隙間に対応する適宜大きさで前記梁材のフランジ上面の幅半分に設置され先端側が前記カーテンウォールの裏面側に当接されて前記層隙間を塞ぐ無機系発泡体と、該発泡体の下面に塗布され水分の蒸発によって火災の熱から保護するセメント系接着剤と、該セメント系接着剤を介して貼着され下側における火災の熱から前記カーテンウォールのファスナーを保護する無機系発泡板とからなり、A fireproof sealing body fitted in the interlayer gap between the curtain wall and the beam material in the building is installed in the half width of the upper surface of the flange of the beam material with an appropriate size corresponding to the interlayer gap, and the tip side is on the back side of the curtain wall An inorganic foam that abuts to close the gap between the layers, a cement adhesive that is applied to the lower surface of the foam and protects from the heat of the fire by evaporation of moisture, and is bonded via the cement adhesive. It consists of an inorganic foam plate that protects the curtain wall fastener from the heat of the fire on the lower side,
前記耐火シール体の下に配設される梁材が、その表面を耐火材で被覆されていること、The beam material disposed under the fireproof seal body has its surface covered with a fireproof material,
を特徴とする耐火シール構造。  Fireproof seal structure characterized by
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