JP3573261B2 - Connecting structure of panels for fireproof roof - Google Patents

Description

【００４５】
上記実験の結果、比較例１においては、加熱開始１８．５分後に非加熱目地部が発火した。これは、加熱側の耐火シール９の発火による目地部端部からの引火と推測される。また、比較例２においては、加熱開始２８分後に非加熱目地部が発火した。また、加熱開始３０分後に非加熱側目地部端部に炎が継続して発生した。なお、加熱側には、残炎はなかった。また、比較例３においては、非加熱側には発火は生じなかったが、非加熱側目地部に多くの煙が継続して発生し、加熱側に残炎が４．５分生じた。これに対し、実施例においては、非加熱側には発火は生じなかった。なお、非加熱側目地部に多くの煙が継続して発生したが、加熱面には発火は生じなかった。
【００４６】
したがって、この発明に係る連結構造によれば、十分な耐火性が得られることが判った。また、上記第一実施形態、参考実施形態ないし第五実施形態のものにおいても、基本的な構造は上記第二実施形態（実施例）と同じであるので、上記実験と同様の結果が得られるものである。
【００４７】
【発明の効果】
以上に説明したように、この発明は、上記のように構成されているので、以下のような効果が得られる。
【００４８】
（１）この発明によれば、連結される両パネルに設けられた凸条の上面及び下面にそれぞれ上部連結部材と下部連結部材とを係合すると共に、これら上部連結部材と下部連結部材を締結部材にて締結して、両パネルの凸条を挟持することにより、高温下に晒された際に、目地部が加熱時に多少拡がったとしても、目地部に発火・着火等を生ずることがなく、パネルの連結状態を維持することができるので、耐火性の向上を図ることができると共に、パネルの厚さを薄くして軽量化を図ることができる。
【００４９】
（２）また、凸条に設けられた係合部と、少なくとも下部連結部材に設けられた折曲片を係合可能に形成するので、凸条と上部及び下部連結部材との連結を更に強固にすることができ、連結状態の維持を更に強固にすることができる。
【００５０】
（３）また、下部連結部材を長手通し状に形成することで、下部連結部材が樋を兼用するので、雨仕舞を良好にすることができる。
【図面の簡単な説明】
【図１】この発明に係る耐火屋根用パネルの連結構造の第一実施形態を示す断面図である。
【図２】第一実施形態の要部を示す断面斜視図である。
【図３】第一実施形態における下部連結部材を示す斜視図である。
【図４】第一実施形態における上部連結部材の２つの形態を示す斜視図である。
【図５】この発明に係る耐火屋根用パネルの連結構造の第二実施形態を示す断面図である。
【図６】第二実施形態における上部連結部材、下部連結部材及び締結部材を示す分解斜視図である。
【図７】この発明に係る耐火屋根用パネルの連結構造の参考実施形態を示す断面図である。
【図８】この発明に係る耐火屋根用パネルの連結構造の第四実施形態を示す断面図である。
【図９】この発明に係る耐火屋根用パネルの連結構造の第五実施形態を示す断面図である。
【図１０】従来の耐火屋根用パネルの連結構造の一例を示す断面図である。
【図１１】耐火屋根用パネルの連結構造の概略平面図である。
【図１２】この発明に係る耐火屋根用パネルの連結構造と従来の耐火屋根用パネルの連結構造とを比較するための実験に使用される連結構造の概略断面図である。
【符号の説明】
１ 表面板
２ コア材
５ シールパッキン
１０，１０Ａ〜１０Ｄ 枠材
１４，１４Ａ 凸条
１５，１５Ａ，１５Ｂ 係合部
１８ 凹条
２０，２０Ａ 上部連結部材
２１，２１Ａ，２１Ｂ 下部連結部材
２２，２２Ａ 折曲片
３０ 締結部材
３１ ボルト
３２ ナット[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-resistant roof panel connecting structure, and more particularly, to a fire-resistant roof panel formed integrally with a pair of a surface plate, a frame material, and a core material formed of aluminum members. And a connection structure for a panel for a fireproof roof.
[0002]
[Prior art]
Generally, as shown in FIG. 10, this type of fire-resistant roof panel has an aluminum core material 2 interposed between a pair of aluminum surface plates 1, and between the side portions of the both surface plates 1. It is known that a hollow frame member 3 made of aluminum is interposed, and the surface plate 1, the core member 2 and the frame member 3 are integrally brazed or bonded.
[0003]
The fire-resistant roof panel thus formed has a predetermined strength, but when exposed to a high temperature due to a fire, the panel is easily deformed due to bending in the longitudinal direction of the panel. The strength of the roof may be reduced. Conventionally, as a means for solving this problem, as shown in FIG. 10, two steps of recesses 4a and 4b are provided on the outer surface of the frame member 3, and a sealing member such as a silicone sponge rubber is provided on the upper step 4a. A seal packing 5 made of stainless steel is fitted, the two panels are joined so that these seal packings 5 are in close contact with each other, and a fire-resistant plate 6 made of a material with high fire resistance, for example, stainless steel, is inserted into the lower groove 4b. The two panels are connected to each other by fixing them to the side of the body part that does not have the fixing members 7 such as bolts and nuts (see FIG. 11). A channel-shaped reinforcing member 8 is fitted into the hollow portion of the frame member 3, and a refractory seal 9 is filled in the upper side of the gap between the connecting portions of the two panels.
[0004]
According to the panel connecting structure configured as described above, when the fire is exposed to a high temperature by a fire, the fire spread can be prevented by the refractory plate 6 from upward.
[0005]
[Problems to be solved by the invention]
However, since the conventional connection structure is a structure in which the refractory plate 6 is simply inserted into the lower step 4b provided in the frame member 3, the panel is exposed to a high temperature by a fire, and the panel is bent and deformed. In this case, there is a problem that a gap (joint portion) of the connecting portion of the panel is opened, a gap is generated between the refractory plate 6 and the frame member 3, and the flame turns upward. As a means for solving this problem, a method of making the frame material 3 solid or increasing the thickness of the refractory plate 6 or the panel itself can be considered, but such a structure increases the weight of the entire panel. However, there is a problem that the weight reduction of the panel is impaired.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connection structure for a fireproof roof panel that is lightweight and capable of maintaining the fire resistance of a connection portion due to deformation under high temperature. It is.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows.
[0008]
This invention isA pair of surface plates each formed of an aluminum member, and interposed between the sides of both surface platesMade of aluminumFrame material, interposed in the space formed by both surface plates and frame materialMade of aluminumIn a connection structure of a fire-resistant roof panel for connecting fire-resistant roof panels formed integrally with a core material, a ridge projecting outward is formed on the frame material,Forming an engaging portion that bulges at least downward on the ridge,  The upper connecting member and the lower connecting member are respectively engaged with the upper and lower surfaces of the ridges of both panels to be connected.At this time, at least a lower connecting member of the upper connecting member or the lower connecting member is provided with a gap between the engaging portion and a bent piece capable of engaging with the engaging portion. And, at least the lower connecting member of the upper connecting member or the lower connecting member is formed in a longitudinally extending shape,The upper connecting member and the lower connecting member are fastened by a fastening member to sandwich the ridges of both panels.
[0009]
In the present invention, a gap may be provided between the lower connecting member and the outer surface of the frame member..
[0010]
The inventionAccording to this, the upper connecting member and the lower connecting member are respectively engaged with the upper surface and the lower surface of the ridge provided on both panels to be connected, and the upper connecting member and the lower connecting member are fastened by the fastening member. By sandwiching the ridges of both panels, even when the joints are slightly expanded during heating when exposed to high temperatures, the joints do not ignite, ignite, etc. Can be maintained. Therefore, the fire resistance can be improved, and the thickness of the panel can be reduced to reduce the weight.
[0011]
Also,By forming the engaging portion provided on the ridge and the bent piece provided on at least the lower connecting member so as to be engageable, the connection between the ridge and the upper and lower connecting members can be further strengthened. It is possible to further maintain the connected state.
[0012]
Also,By forming the lower connecting member in a longitudinally extending shape, the lower connecting member also serves as a gutter, so that it is possible to improve the rain.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, the same portions as those of the conventional connection structure are denoted by the same reference numerals and described.
[0014]
◎ First embodiment
FIG. 1 is a sectional view showing a first embodiment of a connection structure for a fireproof roof panel according to the present invention, and FIG. 2 is a sectional perspective view showing a main part thereof.
[0015]
The fireproof roof panel (hereinafter, referred to as a panel) P includes a pair of aluminum surface plates 1 and a frame material 10 made of, for example, an extruded aluminum material interposed between sides of the both surface plates 1. A core material 2 having a cylindrical shape formed of, for example, a thin aluminum strip interposed in a space formed by both surface plates 1 and a frame member 10 is integrally formed by, for example, brazing. I have.
[0016]
In the frame material 10, wing pieces 13 each having an upright piece 12 bent toward the opposite side are extended at upper and lower ends of an outer surface of the hollow rectangular base 11, and a central portion of the outer surface has Protrusions 14 projecting outward are formed. An engagement portion 15 swelling in the up-down direction is formed at the tip of the ridge 14. Note that a hollow rectangular reinforcing member 16 made of, for example, stainless steel is fitted in the hollow portion of the hollow rectangular base 11.
[0017]
In order to connect the panels P formed as described above, the upper connecting member 20 and the lower connecting member 21 are engaged with the upper and lower surfaces of the ridges 14 of both panels P to be connected, respectively. The connecting member 20 and the lower connecting member 21 are fastened by the fastening member 30, and the two panels P can be connected while sandwiching the ridges 14 thereof.
[0018]
In this case, the lower connecting member 21 is formed of, for example, a stainless steel plate member. As shown in FIG. 3, bending pieces 22 that bend upward in an arc shape are provided at both end portions. As a result, it is possible to engage with the engaging portion 15 of the ridge 14. At an appropriate position on the upper surface of the lower connecting member 21, a nut 32 forming a part of the fastening member 30 is fixed by fixing means such as welding. The lower connecting member 21 configured as described above is formed in a longitudinally continuous shape, and also serves as a gutter.
[0019]
On the other hand, like the lower connecting member 21, the upper connecting member 20 is also formed of, for example, a stainless steel plate member, and as shown in FIG. A bent piece 22 is provided so as to be able to engage with the engaging portion 15 of the ridge 14. At an appropriate position of the upper connecting member 20, a through hole 33 having a slightly larger or longer diameter than the screw hole 32a of the nut 32 fixed to the lower connecting member 21 (a large diameter is shown in the drawing). A bolt 31 forming a part of the fastening member 30 is inserted through the through hole 33 so as to be fastened (screw-coupled) to the nut 32. The head 31a of the bolt 31 is provided with a hexagonal hole 31b, and a tool (not shown) such as a hexagonal wrench can be fitted into the hexagonal hole 31b to tighten the bolt 31. . Further, the upper connecting member 20 is formed in a longitudinal shape as shown in FIG. 4A, or in a piece shape of a predetermined length as shown in FIG. 4B. .
[0020]
Next, a procedure for connecting the panels P to each other will be described. First, the frame members 10 of both panels P to be connected are brought close to each other, and the engaging portions 15 of the ridges 14 are opposed to each other. Next, the lower connecting member 21 is engaged with the lower surface of the ridge 14 of both panels P, and the upper connecting member 20 is engaged with the upper surface of the ridge 14. At this time, the through hole 33 provided in the upper connecting member 20 is aligned with the position of the screw hole 32a of the nut 32 fixed to the lower connecting member 21. Then, the bolt 31 is inserted from above into the screw hole 32a of the nut 32 through the through-hole 33, and the bolt 31 and the nut 32 are fastened (screw-coupled) with a tool such as a wrench (not shown). The ridge 14 is sandwiched between the upper connecting member 20 and the lower connecting member 21. In this state, the bent piece 22 of the upper connecting member 20 and the bent piece 22 of the lower connecting member 21 are located outside with a gap between the engaging portion 15 of the ridge 14.
[0021]
As described above, after the ridges 14 of both panels P are sandwiched between the upper connecting member 20 and the lower connecting member 21, the fireproof seal 9 is inserted into the upper gap 40 of the connecting portion of both panels P via the backup material 41. And the connection operation of the panel P is completed.
[0022]
According to the connection structure of the two panels P connected as described above, when the panel P is bent by thermal deformation due to a high temperature due to a fire and the connection portion (joint portion) of the two panels P is opened. Also, since the engaging portion 15 is engaged with the bent piece 22 of the upper connecting member 20 and the lower connecting member 21, further opening can be restricted. Therefore, it is possible to prevent the flame from wrapping around upward and to prevent the spread of fire. In other words, the thickness of the panel P can be reduced, and the weight of the panel P can be reduced.
[0023]
◎ Second embodiment
FIG. 5 is a sectional view showing a second embodiment of the connection structure for a panel for a fireproof roof according to the present invention.
[0024]
The second embodiment is a case where the strength of the frame member 10A and the panel P is increased, and the strength of the connecting portion is increased. In this case, the frame member 10A is formed of an extruded aluminum member, and has a hollow base 11A having a substantially U-shaped cross section having hollow upper and lower protruding portions 17a and 17b on the upper and lower sides of the outer surface. And a ridge 14 having a bulging engagement portion 15 at the distal end formed at the center of the outer surface of the hollow base 11A in the same manner as in the first embodiment. A reinforcing member 16A having a U-shaped cross section is fitted into the hollow base 11A of the frame member 10A.
[0025]
By configuring the frame member 10A in this manner, the strength of the frame member 10A can be increased as compared with the case of the first embodiment, and the width of the frame member 10A can be reduced. Also, the size of the reinforcing member 16A can be reduced. Therefore, the strength of the panel P itself can be increased, and the weight can be reduced.
[0026]
When the panels P having the frame members 10A configured as described above are connected to each other, similarly to the first embodiment, the frame members 10A of the two panels P to be connected are brought close to each other and the projections 14 are engaged. After the portions 15 are opposed to each other, the lower connecting member 21 is engaged with the lower surface of the ridge 14 of both panels P, and the upper connecting member 20 is engaged with the upper surface of the ridge 14. At this time, as shown in FIG. 6, the upper connection is made to the position of the screw hole 32a of the nut 32 fixed to the lower surface of the lower connection member 21 and the through hole 33 formed in the lower connection member corresponding to the screw hole 32a. The through holes 33 provided in the member 20 are aligned. Next, the bolt 31 is inserted from above into the screw hole 32a of the nut 32 fixed to the lower surface of the lower connecting member 21 through a through hole (not shown), and the bolt 31 and the nut 32 are inserted by a tool such as a driver (not shown). Are fastened (screw connection) to sandwich the ridges 14 of both panels P between the upper connecting member 20 and the lower connecting member 21. In this state, the bent piece 22 of the upper connecting member 20 and the bent piece 22 of the lower connecting member 21 are located outside with a gap between the engaging portion 15 of the ridge 14. Then, the refractory seal 9 is filled in the upper gap 40 of the connecting portion between the panels P via the backup material 41, and the connecting operation of the panels P is completed.
[0027]
In addition, the upper connection member 20 is formed in a shape extending through a longitudinal direction or a piece having a predetermined length. Further, in the above description, the case where the nut 32 constituting the fastening member 30 is fixed to the lower surface side of the lower connecting member 21 has been described. However, similarly to the first embodiment, the nut 32 is fixed to the upper surface side of the lower connecting member 21. May be fixed. In the second embodiment, other parts are the same as those in the first embodiment, and thus the same parts are denoted by the same reference numerals and description thereof will be omitted.
[0028]
◎Reference embodiment
FIG. 7 shows a connection structure of a panel for a fireproof roof according to the present invention.Reference embodimentFIG.
[0029]
Reference embodimentIs a case where the strength of the frame member 10B and the panel P is increased and the constituent members are simplified. In this case, the frame member 10B is formed of an extruded aluminum member, and the second embodiment is the same as the second embodiment except that the frame member 10B has a flat ridge 14A from which the engaging portion 15 of the frame member 10A is removed. It is configured similarly to the frame material 10A in the embodiment. Also,Reference embodiment, The upper connecting member 20A and the lower connecting member 21A are each formed of a flat stainless plate member. Therefore, the structure of the frame member 10B can be simplified, and the structure (shape) of the upper connecting member 20A and the lower connecting member 21A can be simplified, so that the number of constituent members can be reduced.
[0030]
When the panels P having the frame members 10B configured as described above are connected to each other, similarly to the first and second embodiments, the frame members 10B of both panels P to be connected are brought close to each other and the ridges 14A are formed. Then, the lower connecting member 21A is engaged with the lower surface of the ridge 14A of both panels P, and the upper connecting member 20A is engaged with the upper surface of the ridge 14A. At this time, the upper connection is made to a screw hole (not shown) of the nut 32 fixed to the lower surface of the lower connection member 21 and a through hole (not shown) formed in the lower connection member corresponding to the screw hole. The through holes (not shown) provided in the member 20 are aligned. Next, the bolt 31 is inserted from above into the screw hole of the nut 32 fixed to the lower surface of the lower connecting member 21 through the through hole, and the bolt 31 and the nut 32 are fastened with a tool such as a driver (not shown) (screw connection). ), The ridges 14A of both panels P are sandwiched between the upper connecting member 20 and the lower connecting member 21. Then, the refractory seal 9 is filled in the upper gap 40 of the connection portion between the panels P via the backup material 41, and the connection work of the panels P is completed.
[0031]
The upper connection member 20A is formed in a shape of a longitudinal thread or a piece of a predetermined length. In addition,Reference embodimentSince other parts are the same as those in the first embodiment and the second embodiment, the same parts are denoted by the same reference numerals and description thereof will be omitted.
[0032]
◎ Fourth embodiment
FIG. 8 is a cross-sectional view showing a fourth embodiment of the connection structure for a panel for a fireproof roof according to the present invention.
[0033]
The fourth embodiment is a case where the strength of the frame member 10C and the panel P is increased, the constituent members are simplified, and the strength of the connecting portion is increased. That is, the second embodiment andReference embodimentAre combined.
[0034]
In this case, the frame member 10C is formed of an extruded aluminum member, and an engagement portion 15A that bulges downward is provided at the tip of the ridge 14 of the frame member 10A in the second embodiment. Except for the above, it is formed in the same manner as the frame material 10A of the second embodiment. On the other hand, the upper connecting member 20AReference embodimentAs in the case of the upper connecting member 20A, the upper connecting member is made of a stainless steel plate member. The lower connecting member 21 is formed of a stainless steel plate member having bent pieces 22 on both sides, similarly to the lower connecting member 21 of the first embodiment and the second embodiment.
[0035]
When connecting the panels P each including the frame material 10C configured as described above,Reference embodimentSimilarly, after the frame members 10C of both panels P to be connected are brought close to each other and the engaging portions 15A of the ridges 14 are opposed to each other, the lower connecting member 21 is engaged with the lower surfaces of the ridges 14 of both panels P, The upper connecting member 20A is engaged with the upper surface of the ridge 14. At this time, the upper connection is made to a screw hole (not shown) of the nut 32 fixed to the lower surface of the lower connection member 21 and a through hole (not shown) formed in the lower connection member corresponding to the screw hole. The through holes (not shown) provided in the member 20 are aligned. Next, the bolt 31 is inserted from above into the screw hole of the nut 32 fixed to the lower surface of the lower connecting member 21 through the through hole, and the bolt 31 and the nut 32 are fastened with a tool such as a driver (not shown) (screw connection). ), The ridges 14 of both panels P are sandwiched between the upper connecting member 20A and the lower connecting member 21. In this state, the bent piece 22 of the lower connecting member 21 is positioned outside with a gap between the bent piece 22 and the engaging portion 15A of the ridge 14. Then, the refractory seal 9 is filled in the upper gap 40 of the connecting portion between the panels P via the backup material 41, and the connecting operation of the panels P is completed.
[0036]
In the fourth embodiment, the other parts are the same as those of the first embodiment or the other embodiments.Reference embodimentTherefore, the same portions are denoted by the same reference numerals and description thereof will be omitted.
[0037]
◎ Fifth embodiment
FIG. 9 is a sectional view showing a fifth embodiment of the connection structure for a fireproof roof panel according to the present invention.
[0038]
The fifth embodiment is a case in which the strength of the frame member 10D and the panel P is increased, and the sealing property (finished by rain) is further improved.
[0039]
In this case, the frame member 10D is formed of an extruded aluminum member, and cooperates with the upper protruding portion 17a on the outer surface to provide a concave strip 18 for fitting the seal packing 5, and The lower projection 17b and the ridge 14 are also used, and the engaging portion 15B is hung below the lower end of the lower projection 17b (the ridge 14).
[0040]
The upper connecting member 20A isReference embodimentAs in the case of the upper connecting member 20A, a stainless steel plate member is used, a through hole (not shown) is formed at an appropriate position, and a screw hole (not shown) that matches the through hole is formed on the upper surface. ) Is fixed. The lower connecting member 21B is formed of a long stainless steel member having bent portions 22A that can be engaged with the engaging portions 15B at both ends of a base 23 having a substantially hat-shaped cross section. A through hole (not shown) is formed at an appropriate position on the base 23. The seal packing 5 is formed of a silicone sponge rubber member, and includes a hollow base 5a having a substantially semi-circular cross section and a finned strip 5b fitted in the concave strip 18. I have.
[0041]
When connecting the panels P each including the frame member 10D configured as described above, first, the seal packing 5 is fitted to the concave strip 18 in advance. In the same manner as in the first to fourth embodiments, the frame members 10D of both panels P to be connected are brought close to each other so that the ridges 14 (lower projecting portions 17) and the engaging portions 15B face each other, and the seal packings 5 are connected to each other. Closely. At this time, the lower connecting member 21B is engaged with the lower surface of the ridge 14 (lower projecting portion 17) of both panels P, and the upper connecting member 20A is engaged with the upper surface of the ridge 14 (lower projecting portion 17). At this time, a screw hole (not shown) of the nut 32 fixed to the upper surface of the upper connecting member 20A at a position of a through hole (not shown) provided in the lower connecting member 21B and an upper connecting hole corresponding to the screw hole. The through holes (not shown) formed in the member 20A are aligned. Next, the bolt 31 is inserted from below into the screw hole of the nut 32 fixed to the upper surface of the upper connecting member 20A through the through hole, and the bolt 31 and the nut 32 are fastened with a tool such as a driver (not shown) (screw connection). ), The ridges 14 (lower projecting portions 17) of both panels P are sandwiched between the upper connecting member 20A and the lower connecting member 21B. In this state, the seal packings 5 fitted to the frame members 10D of both panels P are in close contact with each other. The bent piece 22A of the lower connecting member 21B is located outside with a gap between the bent piece 22A and the engaging portion 15B of the ridge 14. Then, the refractory seal 9 is filled in the upper gap 40 of the connecting portion between the panels P via the backup material 41, and the connecting operation of the panels P is completed.
[0042]
In the fifth embodiment, other portions are the same as those in the first to fourth embodiments, and thus the same portions are denoted by the same reference numerals and description thereof will be omitted.
[0043]
◎ Other embodiments
In the above-described embodiment, the case where the lower connecting members 21, 21A, 21B are formed of only stainless steel plate members has been described. (Not shown) is preferably applied. Examples of the fire-resistant foam paint include a carbide-forming agent, a reaction catalyst substance for causing a dehydration reaction with the carbide-forming agent during combustion to promote carbonization of the carbide-forming agent, and a foamed flame retardant when heated. A composition obtained by mixing a foaming agent and a binder can be used.
[0044]
【Example】
Next, a heating experiment for comparing the connection structure according to the present invention with the conventional connection structure will be described.
[0045]
★ Specimen
・ Panel; Brazing panel Thickness: 50mm
・ Core material: diameter 30mm (foil thickness: 0.2mm)
Comparative Example 1: A silicone sponge rubber is used for the fireproof seal 9 in the connection structure shown in FIG. 12A, and a silicone sponge rubber fireproof seal 9 is similarly provided on the heating surface (lower surface) side of the fireproof plate 6. filling
Comparative Example 2: In the connection structure shown in FIG. 12B, an inorganic sealing material containing sodium silicate and calcium carbonate as main components is used for the fireproof seal 9.
Comparative Example 3: In the connection structure shown in FIG. 12C, an inorganic sealing material containing sodium silicate and calcium carbonate as main components is used for the fireproof seal 9, and a fireproof surface (lower surface) of the fireproof plate 6 is used. Apply foam paint 50
-Example: In the connection structure shown in Fig. 12 (d), a silicone sponge rubber is used for the fireproof seal 9, and the upper connection member is used.20AAnd lower connecting member21AUses a 2.0 mm thick stainless steel plate
Comparative Examples 1 to 3 under the above conditions and an example similar to the connection structure of the second embodiment according to the present invention are set in a test heating device (heating furnace) (not shown), and a predetermined temperature, for example, about 840 ° C. 30 minutes after the ignition, the temperature of the non-heating side general part, joint and frame material part, and the heating side general part, joint part and frame material part after 30 minutes. When the temperature was measured, the results shown in Table 1 were obtained.
[Table 1]

[0045]
As a result of the above experiment, in Comparative Example 1, a non-heated joint ignited 18.5 minutes after the start of heating. This is presumed to be ignition from the joint end due to ignition of the refractory seal 9 on the heating side. In Comparative Example 2, a non-heated joint ignited 28 minutes after the start of heating. Also, 30 minutes after the start of heating, the flame continued to occur at the end of the joint on the non-heating side. There was no after-flame on the heating side. In Comparative Example 3, no ignition occurred on the non-heating side, but a lot of smoke continued to be generated at the joint on the non-heating side, and after-flame occurred on the heating side for 4.5 minutes. In contrast, in the example, no ignition occurred on the non-heating side. A large amount of smoke was continuously generated at the joint on the non-heating side, but no ignition occurred on the heated surface.
[0046]
Therefore, it was found that the connection structure according to the present invention provided sufficient fire resistance. Further, the first embodiment,Reference embodimentAlso in the fifth to fifth embodiments, the basic structure is the same as that of the second embodiment (Example), so that the same result as that of the above experiment can be obtained.
[0047]
【The invention's effect】
As described above, since the present invention is configured as described above, the following effects can be obtained.
[0048]
(1)The inventionAccording to this, the upper connecting member and the lower connecting member are respectively engaged with the upper surface and the lower surface of the ridge provided on both panels to be connected, and the upper connecting member and the lower connecting member are fastened by the fastening member. By sandwiching the ridges of both panels, even if the joints are slightly expanded during heating when exposed to high temperatures, the joints do not ignite, ignite, etc. , The fire resistance can be improved, and the thickness of the panel can be reduced to reduce the weight.
[0049]
(2)Also,An engaging portion provided on the ridge and a bent piece provided on at least the lower connecting member are formed to be engageable.Because the ridgeAnd the upper and lower connecting members can be connected more firmly, and the connection can be maintained more firmly.
[0050]
(3)Also,By forming the lower connecting member in a longitudinally extending shape, the lower connecting member also serves as a gutter.So rainCan be improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first embodiment of a connection structure for a fireproof roof panel according to the present invention.
FIG. 2 is a sectional perspective view showing a main part of the first embodiment.
FIG. 3 is a perspective view showing a lower connecting member according to the first embodiment.
FIG. 4 is a perspective view showing two forms of an upper connecting member in the first embodiment.
FIG. 5 is a cross-sectional view showing a second embodiment of the connection structure for a fireproof roof panel according to the present invention.
FIG. 6 is an exploded perspective view showing an upper connecting member, a lower connecting member, and a fastening member in the second embodiment.
FIG. 7 shows a connection structure of a panel for a fireproof roof according to the present invention.Reference embodimentFIG.
FIG. 8 is a sectional view showing a fourth embodiment of the connection structure for a fireproof roof panel according to the present invention.
FIG. 9 is a sectional view showing a fifth embodiment of the connection structure for a fireproof roof panel according to the present invention.
FIG. 10 is a cross-sectional view showing one example of a conventional connection structure for a fireproof roof panel.
FIG. 11 is a schematic plan view of a connection structure for a fireproof roof panel.
FIG. 12 is a schematic cross-sectional view of a connection structure used in an experiment for comparing a connection structure of a fireproof roof panel according to the present invention with a connection structure of a conventional fireproof roof panel.
[Explanation of symbols]
1 Surface plate
2 core materials
5 Seal packing
10,10A-10D Frame material
14,14A ridge
15, 15A, 15B engaging part
18 Concave strip
20, 20A Upper connecting member
21, 21A, 21B Lower connecting member
22,22A bent piece
30 fastening members
31 volts
32 nuts

Claims (2)

A pair of surface plates each formed of an aluminum member, an aluminum frame material interposed between the sides of both surface plates, and a space interposed between the two surface plates and the frame material In the connection structure of the fire-resistant roof panel for connecting the fire-resistant roof panels formed integrally with the aluminum core material,
Forming a ridge projecting outward on the frame material,
Forming an engaging portion that bulges at least downward on the ridge,
Respectively on the upper and lower surfaces of the convex of the two panels to be connected and the upper connection member and the lower connecting member engaged, this time, at least the lower connecting member of said upper connecting member or the lower connection member, the engagement A gap is provided between the joint portion and the bent portion that can be engaged with the engaging portion, and at least the lower connecting member of the upper connecting member or the lower connecting member is formed in a longitudinally extending shape. ,
Connection structure of the upper connecting member and a lower connecting member fastened at the fastening member, sandwiching the both panels ridges, refractory roof panel, characterized in that. The connection structure for a panel for a fireproof roof according to claim 1,
A connection structure for a panel for a fireproof roof, wherein a gap is provided between the lower connection member and an outer surface of the frame member.

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