JP2005036583A - Mounting structure of heat insulating material - Google Patents

Mounting structure of heat insulating material Download PDF

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JP2005036583A
JP2005036583A JP2003276677A JP2003276677A JP2005036583A JP 2005036583 A JP2005036583 A JP 2005036583A JP 2003276677 A JP2003276677 A JP 2003276677A JP 2003276677 A JP2003276677 A JP 2003276677A JP 2005036583 A JP2005036583 A JP 2005036583A
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heat insulating
panel
mounting
insulating plate
plate
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JP4169659B2 (en
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Yoshiharu Ikeguchi
Shinichi Kiriyama
伸一 桐山
義治 池口
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Asahi Kasei Homes Kk
旭化成ホームズ株式会社
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<P>PROBLEM TO BE SOLVED: To stick a heat insulating material over the whole outdoor side surface of a beam constituting a skeleton of steel construction. <P>SOLUTION: A metallic support material 15 is mounted to an upper flange 1a of the beam 1 constituting the skeleton of steel construction of a building, and a long-sized or piece-like metallic mounting material 20 is mounted to a lower flange 1b. A heat insulating board 5 is placed to face the metallic mounting material 20, and an external wall panel 6 is placed along the outdoor side surface of the heat insulating board to mount the external wall panel 6 and the heat insulating board 5 to the metallic mounting material 20 and the metallic support material 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、鉄骨造の躯体の外側に断熱材を固定する際に、外壁パネルの躯体に対する取付構造と、断熱材の躯体に対する取付構造と、の合理化をはかることで外貼り断熱構法を実現し得るようにした断熱材の取付構造に関するものである。   The present invention realizes an externally bonded heat insulating structure by rationalizing the mounting structure of the outer wall panel to the housing and the mounting structure of the heat insulating material to the housing when fixing the heat insulating material to the outside of the steel frame housing. The present invention relates to a heat insulating material mounting structure.
鉄骨造の躯体を有する建物を断熱構造とする場合、屋外の熱が鉄骨躯体に伝えられる所謂熱橋を可及的に少なくして結露の防止と断熱効率の向上をはかることが求められている。このような鉄骨造の建物に於ける断熱構造として、特許文献1に記載されるように、床スラブと上部に配置した梁の下フランジとの間であって外壁パネルに沿って断熱板を配置し、該断熱板の下端を床スラブの上面に直接又は床スラブの上面に設けた断熱材を介して接続し、断熱板の上端を梁の下フランジに係合し得るように形成され且つ該梁の屋内側の面を覆う断熱性を持った弾性体に接続し、更に、梁のウエブの屋内側の面に断熱板を配置して該断熱板の下端を前記弾性体に、上端を上階の床スラブの下面或いは天井に配置された断熱板に接続したものが提案されている。   When a building having a steel frame is used as a heat insulating structure, it is required to reduce the number of so-called thermal bridges where outdoor heat is transferred to the steel frame as much as possible to prevent condensation and improve heat insulation efficiency. . As a heat insulating structure in such a steel structure building, as described in Patent Document 1, a heat insulating plate is arranged along the outer wall panel between the floor slab and the lower flange of the beam arranged on the upper part. The lower end of the heat insulating plate is connected to the upper surface of the floor slab directly or via a heat insulating material provided on the upper surface of the floor slab, and the upper end of the heat insulating plate is formed to be able to engage with the lower flange of the beam and It is connected to an elastic body with heat insulation covering the indoor side surface of the beam, and a heat insulating plate is arranged on the indoor side surface of the beam web so that the lower end of the heat insulating plate is placed on the elastic body and the upper end is raised. The thing connected to the heat insulation board arrange | positioned at the lower surface or ceiling of the floor slab of a floor is proposed.
上記技術では、外壁パネルは軽量気泡コンクリート(ALC)パネルや、プレキャストコンクリート(PC)パネル等の比較的に厚く且つ断熱性を持った材を利用しており、これらの外壁パネルを長さ方向の両端部分の2個所程度で躯体に取り付けることで非構造帳壁を構成している。   In the above technology, the outer wall panel uses a relatively thick and heat insulating material such as lightweight cellular concrete (ALC) panel or precast concrete (PC) panel. An unstructured book wall is constructed by attaching it to the frame at about two places on both ends.
外壁パネルを躯体に取り付ける構造について説明すると、基礎又は梁の上部フランジにL型の金物を水平片を外側に突出させて固定し、梁の下部フランジにL型の金物を垂直片を下向きに突出させて固定しておく。外壁パネルの下端を前記水平片に載置し、上端側を前記垂直片に当接させると共に外壁パネルから突出させたボルトに固定金物を挿通し、該固定金物と外壁パネルによって垂直片を挟んでボルトを締結することで取り付ける。従って、特許文献1の技術では、断熱板はL型の金物の屋内側に配置されると共に外壁パネルの屋内側の面に沿って配置される。   Explaining the structure to attach the outer wall panel to the frame, the L-shaped hardware is fixed to the upper flange of the foundation or beam with the horizontal piece protruding outward, and the L-shaped hardware is protruded downward to the lower flange of the beam. Let it be fixed. The lower end of the outer wall panel is placed on the horizontal piece, the upper end is brought into contact with the vertical piece, and the fixing metal is inserted into the bolt protruding from the outer wall panel, and the vertical piece is sandwiched between the fixing metal and the outer wall panel. Install by fastening the bolts. Therefore, in the technique of Patent Document 1, the heat insulating plate is arranged on the indoor side of the L-shaped hardware and is arranged along the indoor side surface of the outer wall panel.
また特許文献2に記載された技術は、鉄骨軸組の建物の断熱壁であって、金属製フレームの外側に凸型の通気胴縁を配置すると共にビスを貫通させて金属製フレームに締結し、この通気胴縁の取付面に断熱材を重ねて該通気胴縁に締結し、更に、通気胴縁の突端に外装材を取り付けるようにしたものである。この技術では、外装材としてはサイディングが想定されており、このサイディングは細かいピッチで配置したビスによって通気胴縁に締結されている。   The technique described in Patent Document 2 is a heat insulating wall of a steel frame building, in which a convex ventilator edge is disposed outside the metal frame, and a screw is penetrated to be fastened to the metal frame. A heat insulating material is overlapped on the mounting surface of the ventilator rim and fastened to the ventilator rim, and an exterior material is attached to the projecting end of the ventilator rim. In this technique, siding is assumed as an exterior material, and this siding is fastened to the ventilator edge by screws arranged at a fine pitch.
特開2003−027619号公報JP 2003-027619 A 特開平10−140688号公報Japanese Patent Laid-Open No. 10-140688
外貼り断熱構法を構成する場合、躯体の屋外側の面に断熱板を配置して柱や梁に固定すると共にこの断熱板の屋外側の面に外壁パネルを取り付けることが好ましい。しかし、可及的に熱橋を小さくして構成する断熱材の取付構造は解決されていないのが実情である。特に、外壁パネルを躯体に対して非構造帳壁として取り付ける構造に採用し得る外貼り断熱構法については全く解決されていない。   In the case of configuring the externally bonded heat insulating construction method, it is preferable to arrange a heat insulating plate on the outdoor side surface of the housing and fix it to a pillar or a beam, and attach an outer wall panel to the outdoor side surface of the heat insulating plate. However, the actual situation is that the mounting structure of the heat insulating material which is configured by making the thermal bridge as small as possible has not been solved. In particular, there is no solution at all regarding an externally bonded heat insulating construction method that can be adopted in a structure in which an outer wall panel is attached to a housing as an unstructured book wall.
即ち、特許文献1の技術は現在有効に利用されているが、この構造は内断熱工法であって、所謂外貼り断熱構法ではない。このため、外壁パネルを取り付けた梁の部分を回避して断熱材を設ける必要が生じて納まりが複雑化する問題がある。   That is, although the technique of Patent Document 1 is currently used effectively, this structure is an inner heat insulating method, not a so-called outer heat insulating structure. For this reason, it is necessary to avoid the portion of the beam to which the outer wall panel is attached and to provide a heat insulating material, and there is a problem that the accommodation becomes complicated.
また特許文献2の技術は、鉄骨軸組の外側面に断熱板を取り付ける外貼り断熱構法であるが、外装材は建物の縦方向に配置された金属製フレームに複数のビスを利用して固定されるものであり、固定部位の数が多く作業が煩雑になるという問題を有しており、また形成された外壁は非構造帳壁とはいえない。   The technique of Patent Document 2 is an externally bonded heat insulating construction method in which a heat insulating plate is attached to the outer surface of a steel frame, but the exterior material is fixed to a metal frame arranged in the vertical direction of the building using a plurality of screws. However, there is a problem that the number of fixing parts is large and the operation becomes complicated, and the formed outer wall cannot be said to be an unstructured book wall.
本発明の目的は、躯体の屋外側の面に断熱材を貼り付けることによって外貼り断熱構法を合理的に実現することが出来る断熱材の取付構造を提供することにある。   The objective of this invention is providing the attachment structure of the heat insulating material which can implement | achieve an external sticking heat insulation construction method rationally by sticking a heat insulating material on the surface of the outdoor side of a housing.
上記課題を解決するために本発明に係る断熱材の取付構造は、鉄骨躯体を構成する鉄骨梁に断熱材を取り付けるための取付構造であって、鉄骨梁に長尺状の又はピース状の取付金物を取り付けると共に該取付金物に板状の断熱材を対向させ、前記板状の断熱材の屋外側の面に外壁パネルを沿わせて該外壁パネルと板状の断熱材を前記取付金物に取り付けたものである。   In order to solve the above problems, the mounting structure for a heat insulating material according to the present invention is a mounting structure for mounting a heat insulating material on a steel beam constituting a steel frame, and has a long or piece-shaped mounting structure on the steel beam. Attach a metal plate and a plate-shaped heat insulating material to the mounting metal plate, and attach the outer wall panel and the plate-shaped heat insulating material to the mounting metal fitting along the outer wall panel on the outdoor side surface of the plate-shaped heat insulating material. It is a thing.
上記断熱材の取付構造では、鉄骨梁に取付金物を取り付け、該取付金物に板状の断熱材(以下「断熱板」という)を対向させると共に該断熱板の屋外側の面に外壁パネルを沿わせ、外壁パネルと断熱板を取付金物に取り付けることで、外貼り断熱構法を実現することによって躯体の屋外側の面を断熱板によって覆うことが可能となり、熱橋となる可能性を有する部分が外壁パネル及び断熱板を取付金物に取り付けるためのボルトと、外壁パネル及び断熱板の下端を載置して支持する支持金物のみとなる。   In the above heat insulating material mounting structure, a mounting metal is attached to a steel beam, a plate-shaped heat insulating material (hereinafter referred to as “heat insulating plate”) is opposed to the mounting metal, and an outer wall panel is placed on the surface of the heat insulating plate on the outdoor side. By attaching the outer wall panel and the heat insulating plate to the mounting hardware, it is possible to cover the outdoor side surface of the housing with the heat insulating plate by realizing the externally bonded heat insulating construction method, and there is a part that has the possibility of becoming a thermal bridge Only the bolts for attaching the outer wall panel and the heat insulating plate to the mounting hardware and the support hardware for placing and supporting the lower ends of the outer wall panel and the heat insulating plate are provided.
このため、梁の屋内側に設置される小梁に邪魔されることなく、可及的に熱橋を軽減させて躯体の屋外側の面に基礎の上面から屋根までの間を断熱板によって連続させた断熱構造とすることが出来、屋根面の断熱材との連続性を保持することが出来る。   For this reason, the thermal bridge is reduced as much as possible without being interrupted by the small beam installed on the indoor side of the beam, and the space between the upper surface of the foundation and the roof is continuously connected to the surface of the frame by the heat insulating plate. The heat insulation structure can be made, and the continuity with the heat insulating material on the roof surface can be maintained.
また梁を回避することがないため、このような部品が不要となり、部品点数を削減することが出来る。   Also, since beams are not avoided, such parts are unnecessary, and the number of parts can be reduced.
本発明は、鉄骨造の躯体を有する建物を断熱構造とする際に、躯体の外側に断熱板を貼り付ける外貼り断熱構法を可及的に熱橋となる部分を少なくして実現するものであり、外壁パネルの少なくとも上端側が躯体を構成する梁に取り付けられて非構造帳壁として構成される場合に特に有利に適用することが可能である。   The present invention realizes an externally bonded heat insulating construction method in which a heat insulating plate is attached to the outside of a housing with as few thermal bridges as possible when a building having a steel frame is made into a heat insulating structure. In particular, the present invention can be applied particularly advantageously when at least the upper end side of the outer wall panel is attached to a beam constituting the frame and configured as an unstructured book wall.
本発明に於いて、鉄骨造の躯体の構成は特に限定するものではない。しかし、躯体を構成する梁は、予め設定されたせいを持ったH形鋼によって構成されることが好ましい。また躯体を構成する柱は断面が矩形状の角パイプや、断面がC型のリップ溝形鋼をリップ或いはウエブを当接させて溶接することで角パイプ状に構成したものを利用することが可能である。   In the present invention, the structure of the steel frame is not particularly limited. However, it is preferable that the beams constituting the frame are made of H-shaped steel having a preset cause. In addition, the pillars constituting the casing may be square pipes having a rectangular cross section, or lip groove steel having a C-shaped cross section may be used in the form of a square pipe by welding with a lip or web in contact. Is possible.
複数の外壁パネルを躯体に取り付けて構成した帳壁は剛性を持った構造であっても良いが、非構造帳壁であることが好ましい。このような非構造帳壁では、躯体に取り付けた外壁パネルには外力が作用することがなく、従って、各外壁パネルが構造部材として機能することがない。   The book wall formed by attaching a plurality of outer wall panels to the housing may have a rigid structure, but is preferably an unstructured book wall. In such an unstructured book wall, no external force acts on the outer wall panel attached to the housing, and therefore, each outer wall panel does not function as a structural member.
また躯体に取り付けた外壁パネルは、建物に水平荷重が作用し、これに伴って上下の梁に相対的な位置の変化が生じたとき、躯体に対する取付点を支点として回動する所謂ロッキング構造を有することが好ましい。このようなロッキング構造とすることによって、地震時のように躯体に水平荷重が作用した場合であっても、この水平荷重の作用に関わらず躯体を構成する梁の移動に追従して破損を防止することが可能となる。   Also, the outer wall panel attached to the housing has a so-called locking structure that rotates around the attachment point with respect to the housing when a horizontal load acts on the building and the relative position of the upper and lower beams changes accordingly. It is preferable to have. By adopting such a rocking structure, even when a horizontal load is applied to the frame as in an earthquake, the damage is prevented by following the movement of the beams that make up the frame regardless of the action of the horizontal load. It becomes possible to do.
外壁パネルを躯体に取り付けてロッキング構造とする場合、該外壁パネルは上下方向の2個所で躯体に取り付けられる。特に、外壁パネルの上端側は上部に配置された鉄骨梁に取付金物を介して取り付けられ、下端側は基礎の上部に配置された或いは鉄骨梁の上フランジに取り付けた支持金物に載置される。   When the outer wall panel is attached to the housing to form a locking structure, the outer wall panel is attached to the housing at two locations in the vertical direction. In particular, the upper end side of the outer wall panel is attached to a steel beam arranged at the upper part via an attachment metal, and the lower end side is placed on a support metal object arranged at the upper part of the foundation or attached to the upper flange of the steel beam. .
取付金物の形状や構造は特に限定するものではない。しかし、取付金物は断熱板や外壁パネルを取り付ける際の定規としての機能を有するため、この機能を容易に発揮し得る形状であることが好ましい。また断熱板を介して外壁パネルを取り付ける際に、外壁パネルに設けたボルトを締結する際に作用する引張力が断熱板に対する圧縮力として作用することになる。このため、断熱板の許容圧縮応力を越えることがないような面積を持って該断熱板と接触し得る寸法であることが必要である。   The shape and structure of the mounting hardware are not particularly limited. However, since the mounting hardware has a function as a ruler when mounting the heat insulating plate or the outer wall panel, it is preferable that the mounting hardware has a shape that can easily exhibit this function. Moreover, when attaching an outer wall panel via a heat insulation board, the tensile force which acts when fastening the volt | bolt provided in the outer wall panel acts as a compressive force with respect to a heat insulation board. For this reason, it is necessary to have a size that can contact the heat insulating plate with an area that does not exceed the allowable compressive stress of the heat insulating plate.
上記の如き機能を発揮することが可能な取付金物としては、断面がL字型の鋼材を用い、L字型の一方の片を梁の下フランジに固定する固定片とし、他方を下フランジから垂直に垂下された取付片として機能させると共に、断熱板及び外壁パネルを取り付ける定規として機能させるようにすることが好ましい。   As the mounting hardware capable of exhibiting the above functions, a steel material having an L-shaped cross section is used, one L-shaped piece is fixed to the lower flange of the beam, and the other from the lower flange. It is preferable to function as a vertically hanging attachment piece and to function as a ruler for attaching the heat insulating plate and the outer wall panel.
上記取付金物に断熱板を介して外壁パネルを取り付ける場合、該取付金物に予め穴を形成しておき、この穴に外壁パネルに設けたボルトを挿通してナットを締結するように構成することが可能である。この場合、穴の位置の精度を厳密に管理する必要が生じる。このため、予めボルトを挿通する穴を形成した取付プレートを用意しておき、前記穴に外壁パネルに設けたボルトを挿通してナットを締結することで、断熱板と取付プレートとによって取付片を挟んで、断熱板及び外壁パネルを取り付けるようにすることが好ましい。   When attaching an outer wall panel to the mounting hardware through a heat insulating plate, a hole is formed in the mounting hardware in advance, and a bolt provided on the outer wall panel is inserted into the hole and a nut is fastened. Is possible. In this case, it is necessary to strictly manage the accuracy of the hole position. For this reason, a mounting plate in which a hole for inserting a bolt is prepared in advance, a bolt provided on the outer wall panel is inserted into the hole and a nut is fastened, whereby a mounting piece is formed by the heat insulating plate and the mounting plate. It is preferable to sandwich the heat insulating plate and the outer wall panel.
同様に支持金物の形状や構造も特に限定するものではない。この支持金物も取付金物と同様に断熱板や外壁パネルを取り付ける際の定規としての機能を有するため、この機能を容易に発揮し得る形状であることが好ましい。例えば、断面がT型の鋼材を凸状に用い、起立片を断熱板及び外壁パネルを取り付ける際の定規として機能させ、底片の一方を基礎の上面或いは梁の上部フランジに固定する固定片として機能させ、他方の片を断熱板及び外壁パネルを載置して自重を支持する支持片として機能させることが好ましい。   Similarly, the shape and structure of the support hardware are not particularly limited. Since this support metal also has a function as a ruler when attaching the heat insulating plate and the outer wall panel in the same manner as the attachment metal, it is preferable that the support metal has a shape capable of easily exhibiting this function. For example, a steel material with a T-shaped cross section is used in a convex shape, the upright piece functions as a ruler when attaching a heat insulating plate and an outer wall panel, and one of the bottom pieces functions as a fixed piece for fixing to the upper surface of the foundation or the upper flange of the beam The other piece is preferably made to function as a support piece for supporting its own weight by placing the heat insulating plate and the outer wall panel.
更に、L字型の鋼材を用い、一方の片を基礎の上面或いは梁の上部フランジに固定する固定片として機能させると共に他方の片を起立させて定規片として機能させ、該定規片にL字型に形成した自重受け金物を取り付けて該自重受け金物に断熱板及び外壁パネルを載置して支持し得るように構成することも可能である。   Furthermore, using an L-shaped steel material, one piece is made to function as a fixed piece for fixing to the upper surface of the foundation or the upper flange of the beam, and the other piece is made to stand and function as a ruler piece. It is also possible to attach a self-weight receiving metal formed on the mold and mount and support the heat insulating plate and the outer wall panel on the self-weight receiving metal.
上記の如き支持金物或いは自重受け金物を用いた場合、断熱板及び外壁パネルは単に支持片,自重受け金物に載置した状態を保持したままであって良く、外壁パネルに設けたボルトと取付プレートを利用して支持金物の起立片、或いは定規片に取り付けるようにしても良い。   In the case of using the support metal or the self-weight receiving metal as described above, the heat insulating plate and the outer wall panel may simply keep the state of being placed on the support piece and the self-weight receiving metal, and the bolt and the mounting plate provided on the outer wall panel. You may make it attach to the standing piece of a support metal piece, or a ruler piece.
躯体に取り付けられる外壁パネルとしては、軽量気泡コンクリート(ALC)パネルや、プレキャストコンクリート(PC)パネルを用いることが好ましい。これらのパネルでは、パネル自体が充分に高い断熱性能を有しており、建物の断熱効率を向上させることが可能である。   As the outer wall panel attached to the casing, it is preferable to use a lightweight cellular concrete (ALC) panel or a precast concrete (PC) panel. In these panels, the panel itself has a sufficiently high heat insulation performance, and it is possible to improve the heat insulation efficiency of the building.
外壁パネルに設けるボルトは、該外壁パネルに予め埋設されたナットに螺合したものであって良く、また外壁パネルの長手方向の端部からボルトを設置すべき寸法の部位に側面から中心に向けて穴を形成すると共に、裏面側から表面側に向けて厚さ方向の穴を形成し、該厚さ方向の穴に一端がO状に形成されたOボルトのO部を挿入し、且つ側面から中心に向けて形成された穴にOボルトのO部に挿通する棒鋼を挿通して該棒鋼をO部に貫通させるようにしても良い。このようなボルトは何れも通常のALCパネルに装備されているものであり、一方の端部が外壁パネルの屋内側の面から突出するものの、他方の端部は屋外側の面に突出するものではなく、積極的な熱橋として機能する虞はない。また外壁パネル及び断熱板の下端を支持する支持金物は、通常上下の外壁パネル間に施されるシーリング材で被覆されるが、シーリング材のバッカー材として弾性を持った断熱材を差し込むことによって、該支持金物が熱橋となることを防止することが可能である。   The bolt provided on the outer wall panel may be screwed into a nut embedded in the outer wall panel in advance, and from the end in the longitudinal direction of the outer wall panel to the site where the bolt should be installed, from the side to the center. And forming a hole in the thickness direction from the back surface side to the front surface side, inserting an O portion of an O bolt having one end formed in an O-shape into the hole in the thickness direction, and a side surface Alternatively, a steel bar inserted through the O part of the O bolt may be inserted into the hole formed from the center to the center so that the steel bar penetrates the O part. All of these bolts are mounted on a normal ALC panel, and one end protrudes from the indoor side surface of the outer wall panel, while the other end protrudes from the outdoor side surface. However, there is no risk of functioning as an active thermal bridge. In addition, the support hardware that supports the lower end of the outer wall panel and the heat insulating plate is usually covered with a sealing material applied between the upper and lower outer wall panels, but by inserting an elastic heat insulating material as a backer material of the sealing material, It is possible to prevent the support hardware from becoming a thermal bridge.
また外壁パネルが窓の上部及び下部に配置され、或いはドアの上部に配置されるものである場合、該外壁パネルを躯体に取り付ける際には必ずしも前述したボルトを利用する必要はなく、躯体に設けた取付金物に断熱板を対向させると共に該断熱板に外壁パネルを対向させておき、外壁パネルの屋外側の面からタッピングビスを貫通させて取付金物に締結することで取り付けることも可能である。この場合、タッピングビスが熱橋となるため、予め外壁パネルに形成したザグリ穴にタッピングビスの頭部を貫入させた後、このザグリ穴を断熱材で充填することが好ましい。   When the outer wall panel is arranged at the upper and lower parts of the window or at the upper part of the door, it is not always necessary to use the bolt described above when attaching the outer wall panel to the casing. It is also possible to attach the heat-insulating plate to the attached metal fitting and to make the outer wall panel face the heat-insulating plate and pass the tapping screw from the outdoor side surface of the outer wall panel and fasten it to the fitting. In this case, since the tapping screw serves as a thermal bridge, it is preferable to fill the counterbored hole with a heat insulating material after the head of the tapping screw is inserted into the counterbored hole formed in the outer wall panel in advance.
断熱板は板状のものであれば利用することが可能である。しかし、躯体に取り付けられる際には、取付金物と外壁パネルとに挟まれて押圧されるため、充分に高い圧縮強度を有することが好ましい。このような断熱板としては、フェノール樹脂発泡体や、ポリスチレン(PS)発泡体、或いは硬質ウレタンフォームがあり、これらを選択的に利用することが可能である。   Any heat insulating plate can be used if it is plate-shaped. However, when attached to the housing, it is preferably sandwiched between the mounting hardware and the outer wall panel and pressed, so that it preferably has a sufficiently high compressive strength. Examples of such a heat insulating plate include a phenol resin foam, a polystyrene (PS) foam, and a rigid urethane foam, which can be selectively used.
特に、断熱板として好ましく使用し得るフェノール樹脂発泡体として、本件出願人が開発して国際特許出願(特願2000−558158号)したもの(ネオマフォーム(登録商標))がある。このフェノール樹脂発泡体は、フェノール樹脂基体部と、多数の微細気泡から形成される気泡部とを有する密度が10kg/m3〜100kg/m3のフェノールフォームであり、前記微細気泡が炭化水素を含有し且つ平均気泡径が5μm〜200μmの範囲にあり、大部分の微細気泡の気泡壁が滑らかなフェノール樹脂基体面で構成されている。そして、発泡剤が炭化水素であるにも関わらず、従来のフロン系発泡剤と遜色のない熱伝導率を持ち、且つ熱電動率の経時的な変化もなく、圧縮強度等の機械的強度に優れ、脆性が改善されている。 In particular, as a phenolic resin foam that can be preferably used as a heat insulating plate, there is an international patent application (Japanese Patent Application No. 2000-558158) developed by the present applicant (Neoma Foam (registered trademark)). The phenolic resin foam, phenol resin base portion, a phenol foam of density 10kg / m 3 ~100kg / m 3 and a bubble portion formed from a large number of fine bubbles, the micro bubbles hydrocarbons In addition, the average cell diameter is in the range of 5 μm to 200 μm, and the cell walls of most of the fine cells are constituted by a smooth phenol resin substrate surface. Despite the fact that the foaming agent is a hydrocarbon, it has a thermal conductivity comparable to that of conventional chlorofluorocarbon foaming agents, and there is no change over time in the thermoelectric coefficient, resulting in a mechanical strength such as compressive strength. Excellent and improved brittleness.
上記フェノール樹脂発泡体からなる断熱板は、高い断熱性を有し、且つ断熱性や寸法を長期間維持し得る性質を有している。フェノール樹脂発泡体の断熱性は、独立気泡率を80%以上と高く保持することによって確保することが可能である。またフェノール樹脂発泡体は高い耐燃焼性を有しており、火炎が作用したとき、表面が炭化することで着火することがない。   The heat insulation board which consists of the said phenol resin foam has a high heat insulation, and has the property which can maintain heat insulation and a dimension for a long period of time. The heat insulation property of the phenol resin foam can be ensured by keeping the closed cell ratio as high as 80% or more. Moreover, the phenol resin foam has high combustion resistance, and when a flame acts, it does not ignite because the surface is carbonized.
例えば、フェノール樹脂発泡体の密度を27kg/m3に設定した場合、20℃に於ける熱伝導率は、0.020W/m・Kであり、圧縮強度は、15N/cm2、熱変形温度は200℃である。このようなフェノール樹脂発泡体の性能は、押出発泡ポリスチレン3種が熱伝導率;0.028W/m・K、圧縮強度;20N/cm2、熱変形温度;80℃であることや、硬質ウレタンフォーム2種が熱伝導率;0.024W/m・K、圧縮強度;8N/cm2、熱変形温度;100℃であることと比較して充分に高い性能を有する。このため、フェノール樹脂発泡体からなる断熱板では、従来の押出発泡ポリスチレンや硬質ウレタンフォームの約2/3程度の厚さで略同等の断熱性能を発揮するすることが可能である。 For example, when the density of the phenol resin foam is set to 27 kg / m 3 , the thermal conductivity at 20 ° C. is 0.020 W / m · K, the compressive strength is 15 N / cm 2 , and the heat distortion temperature. Is 200 ° C. The performance of such a phenol resin foam is that three types of extruded polystyrene foam have a thermal conductivity of 0.028 W / m · K, a compressive strength of 20 N / cm 2 , a heat distortion temperature of 80 ° C., and a rigid urethane. Two types of foams have sufficiently high performance as compared with thermal conductivity: 0.024 W / m · K, compressive strength: 8 N / cm 2 , heat distortion temperature: 100 ° C. For this reason, a heat insulating plate made of a phenol resin foam can exhibit substantially the same heat insulating performance with a thickness of about 2/3 that of conventional extruded polystyrene foam or rigid urethane foam.
断熱板の厚さは製造段階で設定され、幅や長さは所望の値に切断される。即ち、断熱板の厚さは適用すべき部位に応じて適宜設定され、幅は適用すべき建物に設定されたモジュール寸法に対応させて設定される。また断熱板の長さも適用する部位に応じて必要な長さ、例えば1階層分の高さに対応させて設定される。   The thickness of the heat insulating plate is set at the manufacturing stage, and the width and length are cut to desired values. That is, the thickness of the heat insulating plate is appropriately set according to the portion to be applied, and the width is set in accordance with the module size set for the building to be applied. The length of the heat insulating plate is also set in accordance with the required length, for example, the height of one layer according to the part to be applied.
従って、断熱板の長さを予め1階層分の高さに対応させて切断しておくことで、躯体に対する取付作業を行う際に、作業を容易とし且つ気密処理すべき部位の長さを軽減することが可能となり好ましい。特に、フェノール樹脂発泡体は圧縮強度が高いので、1階層分の高さで取り付けた場合であっても、充分に断熱板としての形状を保持することが可能であり、且つ表裏面に配置されて発泡体と一体化された不織布が曲げや剪断或いは引張に対する抵抗部材として機能し、熱的に且つ強度的に信頼性の高い断熱構造を実現することが可能となる。   Therefore, the length of the heat insulating plate is cut in advance so as to correspond to the height of one layer, thereby facilitating the work and reducing the length of the part to be airtightly processed when performing the mounting work on the housing. This is preferable. In particular, since the phenol resin foam has high compressive strength, it can sufficiently retain the shape as a heat insulating plate even when attached at a height of one layer, and is disposed on the front and back surfaces. Thus, the nonwoven fabric integrated with the foam functions as a resistance member against bending, shearing, or tension, and it is possible to realize a thermally and highly reliable heat insulating structure.
フェノール樹脂発泡体は他の発泡体と比較して圧縮強度が高いものの、金属と比較すると小さいため、外壁パネルに設けたボルトを断熱板の厚さ方向に貫通させて締結する際に断熱板には高い圧縮力が作用する。このため、圧縮力に対抗する補強部材を設けることが好ましい。この補強部材としては、断熱板の厚さと略等しい長さを持ったスリーブ状の部材として構成し、このスリーブを断熱板に設けたボルト穴に挿通することで機能させることが可能である。   Phenolic resin foam has higher compressive strength than other foams, but is smaller than metal, so when bolting the outer wall panel through the thickness direction of the heat insulation plate and fastening it, High compression force acts. For this reason, it is preferable to provide a reinforcing member that resists the compressive force. This reinforcing member is configured as a sleeve-like member having a length substantially equal to the thickness of the heat insulating plate, and can function by inserting the sleeve into a bolt hole provided in the heat insulating plate.
特に、断熱板及び外壁パネルを取付プレートを利用して取付金物に取り付けるように構成した場合、補強部材を取付プレートの端部と係合する補強板とスリーブを一体化させた形状とすることで、取付プレートを介して断熱板に作用する力を補強板によって分散させると共にスリーブによって補強することが可能となり有利である。このような補強部材は、金属製であっても良いが、熱の伝導を考慮したとき、合成樹脂製であることが好ましい。   In particular, when the heat insulating plate and the outer wall panel are configured to be mounted on the mounting hardware using the mounting plate, the reinforcing member is formed into a shape in which the reinforcing plate and the sleeve that engage with the end of the mounting plate are integrated. The force acting on the heat insulating plate via the mounting plate can be dispersed by the reinforcing plate and can be advantageously reinforced by the sleeve. Such a reinforcing member may be made of metal, but is preferably made of synthetic resin in consideration of heat conduction.
次に上記取付構造の好ましい実施例について図を用いて説明する。図1は外貼り断熱構法を実現した建物の断面を示す図である。図2は外壁パネルの下端部を支持する構造を説明する図である。図3は外壁パネルの上端側を躯体に取り付ける取付構造を説明する図である。図4は補強部材の構成を説明する図である。   Next, a preferred embodiment of the mounting structure will be described with reference to the drawings. FIG. 1 is a view showing a cross section of a building that realizes an externally bonded heat insulating construction method. FIG. 2 is a diagram illustrating a structure for supporting the lower end portion of the outer wall panel. FIG. 3 is a view for explaining an attachment structure for attaching the upper end side of the outer wall panel to the housing. FIG. 4 is a diagram illustrating the configuration of the reinforcing member.
先ず、図1により外貼り断熱構法の概略構造について説明する。図に於いて、建物を構成する鉄骨造の躯体は、図示しない柱と、所定位置に配置されると共に端部を柱に固定された梁1とを有して構成されている。梁1は上フランジ1aと下フランジ1bを有するH形鋼によって構成されており、梁1のせいや各フランジ1a,1bの幅は予め設計段階で設定されている。最上部に配置された梁1の上フランジ1aには屋根パネル2が配置されると共に所定の構造で取り付けられており、基礎3の上部及び中間階層の梁1の上フランジ1aには床パネル4が配置されると共に所定の構造で取り付けられている。尚屋根パネル2及び床パネル4は夫々ALCパネルによって構成されている。   First, the schematic structure of the externally bonded heat insulating construction method will be described with reference to FIG. In the figure, a steel frame structure constituting a building includes a column (not shown) and a beam 1 which is arranged at a predetermined position and whose end is fixed to the column. The beam 1 is made of an H-shaped steel having an upper flange 1a and a lower flange 1b. The reason for the beam 1 and the widths of the flanges 1a and 1b are set in advance at the design stage. A roof panel 2 is arranged on the upper flange 1a of the beam 1 arranged at the top and is attached with a predetermined structure, and a floor panel 4 is attached to the upper flange 1a of the upper part of the foundation 3 and the beam 1 in the middle layer. And are attached with a predetermined structure. The roof panel 2 and the floor panel 4 are each composed of an ALC panel.
建物の外側に配置された梁1の屋外側の面にフェノール樹脂発泡体からなり、長さが外壁パネル6と略等しく設定された断熱板5が配置され、該断熱板5の屋外側の面にALCパネルからなる外壁パネル6が配置されており、これらの断熱板5及び外壁パネル6は下端側が後述する図2に示す構造で、上端側が後述する図3に示す構造で梁1に取り付けられている。   A heat insulating plate 5 made of a phenol resin foam and having a length substantially equal to that of the outer wall panel 6 is arranged on the outdoor side surface of the beam 1 arranged outside the building, and the outdoor side surface of the heat insulating plate 5 The outer wall panel 6 made of an ALC panel is disposed on the beam 1 and the heat insulating plate 5 and the outer wall panel 6 are attached to the beam 1 with a lower end side having a structure shown in FIG. 2 described later and an upper end side having a structure shown in FIG. ing.
1階の床パネル4の上面にはフェノール樹脂発泡体或いはポリスチレン発泡体からなる断熱材7が設置され、該断熱材7の端部が外壁パネル6に沿って配置された断熱板5と連続している。また屋根パネル2の上面にはフェノール樹脂発泡体,ポリスチレン発泡体,硬質ウレタンフォーム等の中から選択された断熱材8が設置され、該断熱材8の端部が断熱板5と連続している。従って、建物の屋根パネル2の上面,床パネル4の上面,外壁パネル6の屋内側面に沿って断熱材7,8及び断熱板5が設置されることとなり、連続した断熱ラインを形成される。   A heat insulating material 7 made of phenol resin foam or polystyrene foam is installed on the upper surface of the floor panel 4 on the first floor, and the end of the heat insulating material 7 is continuous with the heat insulating plate 5 arranged along the outer wall panel 6. ing. Further, a heat insulating material 8 selected from phenol resin foam, polystyrene foam, rigid urethane foam or the like is installed on the upper surface of the roof panel 2, and the end of the heat insulating material 8 is continuous with the heat insulating plate 5. . Therefore, the heat insulating materials 7 and 8 and the heat insulating plate 5 are installed along the upper surface of the roof panel 2 of the building, the upper surface of the floor panel 4, and the indoor side surface of the outer wall panel 6, thereby forming a continuous heat insulating line.
尚、図1に於いて、9は内壁の下地構造となる下地パネルであり、10は天井である。また11は屋根パネル2,床パネル4の端部と断熱板5との間に形成された隙間に充填されたモルタルである。   In FIG. 1, reference numeral 9 denotes a base panel serving as a base structure of the inner wall, and reference numeral 10 denotes a ceiling. Reference numeral 11 denotes a mortar filled in a gap formed between the end of the roof panel 2 and the floor panel 4 and the heat insulating plate 5.
次に、図2,図3により断熱板5及び外壁パネル6を躯体に取り付ける構造について説明する。尚、図2は2階よりも上階に配置された断熱板5,外壁パネル6の下端を支持する構造を示している。しかし、基礎3の上面に配置される1階の断熱板5,外壁パネル6であっても、同一の構造で取り付けることが可能である。また図3は各階層に配置された断熱板5,外壁パネル6の上端側を躯体に取り付ける構造を示している。   Next, the structure which attaches the heat insulation board 5 and the outer wall panel 6 to a housing | casing with FIG. 2, FIG. 3 is demonstrated. FIG. 2 shows a structure for supporting the lower end of the heat insulating plate 5 and the outer wall panel 6 arranged on the upper floor than the second floor. However, even the first-floor heat insulating plate 5 and the outer wall panel 6 arranged on the upper surface of the foundation 3 can be attached with the same structure. Moreover, FIG. 3 has shown the structure which attaches the upper end side of the heat insulation board 5 and the outer wall panel 6 arrange | positioned in each hierarchy to a housing.
建物の外周に配置された梁1の上フランジ1aに支持金物15が配置されて固定されている。この支持金物15は、断熱板5,外壁パネル6の下端を載置して重量を支持する載置片15aと、外壁パネル6に設けたボルト16aを断熱板5に貫通させてナット16bを締結させることで取り付ける取付片15bと、支持金物15を梁1の上フランジ1aに固定する固定片15cと、を有する断面形状がクランク状に形成された長尺状の、或いはピース状の金物として構成されている。尚、支持金物の形状は必ずしも図に示されたものに限定されるものではなく、断面がT字状に形成されていても良いことは当然である。   A support hardware 15 is disposed and fixed to the upper flange 1a of the beam 1 disposed on the outer periphery of the building. The support metal 15 is made of a heat-insulating plate 5 and a lower end of the outer wall panel 6 that are placed on the lower end of the outer wall panel 6 to support the weight, and a bolt 16a provided on the outer wall panel 6 is passed through the heat-insulating plate 5 to fasten a nut 16b It is configured as a long or piece-like hardware having a cross-sectional shape formed in a crank shape having a mounting piece 15b to be attached and a fixing piece 15c for fixing the support metal 15 to the upper flange 1a of the beam 1. Has been. Note that the shape of the support hardware is not necessarily limited to that shown in the drawing, and the cross section may be formed in a T shape.
上記支持金物15は、固定片15cを梁1の上フランジ1aに載置し、取付片15bの通りを確認した後、上フランジ1aに固定される。固定片15cの上フランジ1aに固定する場合、溶接しても良いが、本実施例ではボルト17a,ナット17bによって固定されている。   The support metal 15 is fixed to the upper flange 1a after placing the fixing piece 15c on the upper flange 1a of the beam 1 and confirming the way of the attachment piece 15b. When fixed to the upper flange 1a of the fixed piece 15c, welding may be performed, but in the present embodiment, the fixed piece 15c is fixed by a bolt 17a and a nut 17b.
梁1の下フランジ1bに取付金物20が配置されて固定されている。取付金物20は、梁1の下フランジ1bに固定される固定片20aと、断熱板5及び外壁パネル6を該外壁パネル6に設けたボルト16aを断熱板5を貫通させてナット16bを締結することで取り付ける取付片20bと、を有する断面がL型の長尺状或いはピース状の金物として構成されている。そして取付片20bに取付プレート21の一端を係合させると共に該取付プレート21に外壁パネル6に設けたボルト16aを挿通してナット16bを締結することで、断熱板5及び外壁パネル6を取付金物20に取り付けるように構成されている。このため、取付金物20は、固定片20aを梁1の下フランジ1bに当接させて取付片20bの通りを確認し、この状態で固定片20aを下フランジ1bに溶接して固定されている。   An attachment hardware 20 is disposed and fixed to the lower flange 1b of the beam 1. The mounting hardware 20 includes a fixing piece 20a fixed to the lower flange 1b of the beam 1, a bolt 16a having the heat insulating plate 5 and the outer wall panel 6 provided on the outer wall panel 6, passing through the heat insulating plate 5, and fastening a nut 16b. The cross section having the mounting piece 20b attached in this way is configured as an L-shaped long or piece-shaped hardware. Then, one end of the mounting plate 21 is engaged with the mounting piece 20b, and a bolt 16a provided on the outer wall panel 6 is inserted into the mounting plate 21 to fasten the nut 16b, whereby the heat insulating plate 5 and the outer wall panel 6 are attached to the mounting hardware. 20 to be attached. For this reason, the mounting hardware 20 is fixed by welding the fixing piece 20a to the lower flange 1b in such a state that the fixing piece 20a is brought into contact with the lower flange 1b of the beam 1 to check the way of the mounting piece 20b. .
例えば、取付金物20に対向させて配置された断熱板5を該取付片20bに直接接触させた状態で外壁パネル6に設けたボルト16a,ナット26bの締結によって取り付けることが可能である。この場合、ナット16bの締結に伴うボルト16aに作用する引張力は、断熱板5に対する圧縮力として作用する。このため、取付片20bと接触する断熱板5に高い圧縮応力が生じて該断熱板5が部分的に潰れたり、破損する虞がある。このため、取付片20bの表面積を断熱板5に生じる圧縮応力が圧縮強度(例えば15N/cm2)以下になるように大きく設定することが必要である。 For example, it is possible to attach the heat insulating plate 5 disposed so as to face the mounting hardware 20 by fastening bolts 16a and nuts 26b provided on the outer wall panel 6 in direct contact with the mounting piece 20b. In this case, the tensile force acting on the bolt 16 a accompanying the fastening of the nut 16 b acts as a compressive force on the heat insulating plate 5. For this reason, high compressive stress arises in the heat insulation board 5 which contacts the attachment piece 20b, and there exists a possibility that this heat insulation board 5 may be partially crushed or damaged. For this reason, it is necessary to set the surface area of the mounting piece 20b large so that the compressive stress generated in the heat insulating plate 5 is not more than the compressive strength (for example, 15 N / cm 2 ).
また本実施例では、取付金物20の取付片20bに取付プレート21の一方の端部21aを係合させると共に他方の端部21bを断熱板5の表面に当接させてボルト16aにナット16bを締結することで断熱板5,外壁パネル6を取り付けている。このときボルト16aに作用する引張力は取付プレート21の端部21bを介して断熱板5に対する圧縮力として作用し、この圧縮力によって断熱板7に潰れが生じたり、部分的な破壊が生じる虞がある。   Further, in this embodiment, one end 21a of the mounting plate 21 is engaged with the mounting piece 20b of the mounting hardware 20, and the other end 21b is brought into contact with the surface of the heat insulating plate 5 so that the nut 16b is attached to the bolt 16a. The heat insulation board 5 and the outer wall panel 6 are attached by fastening. At this time, the tensile force acting on the bolt 16a acts as a compressive force on the heat insulating plate 5 via the end portion 21b of the mounting plate 21, and the compressive force may cause the heat insulating plate 7 to be crushed or partially broken. There is.
このため、断熱板5に形成されたボルト穴5aに図4に示す補強部材22を挿通しておくことが好ましい。補強部材22は、ボルト16aを挿通し得る径を持ったスリーブ22aと、スリーブ22aと一体的に形成されたプレート22bとを有して構成されており、スリーブ22aはボルト16aに作用する引張力に対抗し得る耐座屈性能を有し、プレート22bはボルト16aに作用する引張力を分散して断熱板5に伝える機能を有する。この補強部材22は、金属製であって良いが、熱橋となることを避けるために合成樹脂製であることが好ましい。   For this reason, it is preferable to insert the reinforcing member 22 shown in FIG. 4 into the bolt hole 5 a formed in the heat insulating plate 5. The reinforcing member 22 includes a sleeve 22a having a diameter through which the bolt 16a can be inserted, and a plate 22b formed integrally with the sleeve 22a. The sleeve 22a has a tensile force acting on the bolt 16a. The plate 22b has a function of dispersing the tensile force acting on the bolt 16a and transmitting it to the heat insulating plate 5. The reinforcing member 22 may be made of metal, but is preferably made of synthetic resin in order to avoid a thermal bridge.
外壁パネル6は通常の外壁パネルと特別に変わることなく形成されており、下端側の所定位置(支持金物15の取付片15bと対向する位置)及び上端側の所定位置(取付金物20の取付片20bよりも下側で取付プレート21を取り付けるべき位置)に夫々ボルト16aが設けられている。このボルト16aの長さは、断熱板5を厚さ方向に貫通して支持金物15の取付片15b或いは取付金物20に係合する取付プレート21に達し、更にナット16bを締結し得る寸法であることが必要である。   The outer wall panel 6 is formed without any special change from a normal outer wall panel, and has a predetermined position on the lower end side (a position facing the mounting piece 15b of the support hardware 15) and a predetermined position on the upper end side (the mounting piece of the mounting hardware 20). Bolts 16a are respectively provided at positions where the mounting plate 21 should be mounted below 20b. The length of the bolt 16a is a dimension that can penetrate the heat insulating plate 5 in the thickness direction and reach the mounting plate 21 that engages with the mounting piece 15b or the mounting hardware 20 of the support metal 15 and further fastens the nut 16b. It is necessary.
断熱板5は、厚さが約40mmで外壁パネル6と等しい長さと幅を持ったパネル状に形成されている。断熱板5に於ける外壁パネル6に予め設けられているボルト16aの設置位置と対応する下端側及び上端側の所定位置には、ボルト16aを挿通するための穴5aが形成されている。   The heat insulating plate 5 has a thickness of about 40 mm and is formed in a panel shape having the same length and width as the outer wall panel 6. Holes 5a through which the bolts 16a are inserted are formed at predetermined positions on the lower end side and the upper end side corresponding to the installation positions of the bolts 16a provided in the outer wall panel 6 in the heat insulating plate 5 in advance.
次に、上記の如く構成された支持金物15,取付金物20に断熱板5及び外壁パネル6を取り付ける手順について説明する。先ず、前述の如くして梁1の上フランジ1a及び基礎3の上面に支持金物15を固定すると共に下フランジ1bに取付金物20を固定しておく。   Next, a procedure for attaching the heat insulating plate 5 and the outer wall panel 6 to the support metal 15 and the attachment metal 20 configured as described above will be described. First, as described above, the support metal 15 is fixed to the upper flange 1a of the beam 1 and the upper surface of the foundation 3, and the mounting metal 20 is fixed to the lower flange 1b.
次いで、断熱板5の下端を支持金物15の載置片15aに載置すると共にボルト穴5aを取付片15bに対向させておき、この状態で、例えば両面テープ等によって支持金物15の取付片15b,取付金物20の取付片20bに仮止めする。   Next, the lower end of the heat insulating plate 5 is placed on the placement piece 15a of the support metal 15 and the bolt hole 5a is opposed to the attachment piece 15b, and in this state, for example, the attachment piece 15b of the support metal 15 is provided by double-sided tape or the like. , Temporarily fixed to the mounting piece 20b of the mounting hardware 20.
外壁パネル6に設けたボルト16aにスペーサー18を挿通し、この状態でボルト16aを断熱板5のボルト穴5aに挿通すると共に下端を支持金物15の載置片15aに載置する。次いで、支持金物15の取付片15bに挿通されたボルト16aにナット16bを螺合する。また取付金物20の近傍に突出したボルト16aに補強部材22のスリーブ22aを挿通して断熱板5に設けたボルト穴5aに押し込み、プレート22bを断熱板5の屋内側の面に接触させる。更に、ボルト16aに取付プレート21を挿通してナット16bを螺合する。このとき、取付プレート21の端部21aが取付金物20の取付片20bと確実に係合していることを確認することが必要である。   The spacers 18 are inserted into the bolts 16 a provided on the outer wall panel 6. In this state, the bolts 16 a are inserted into the bolt holes 5 a of the heat insulating plate 5 and the lower ends are mounted on the mounting pieces 15 a of the support hardware 15. Next, the nut 16 b is screwed into the bolt 16 a inserted through the mounting piece 15 b of the support metal 15. Further, the sleeve 22a of the reinforcing member 22 is inserted into the bolt 16a protruding in the vicinity of the mounting hardware 20, and is pushed into the bolt hole 5a provided in the heat insulating plate 5, so that the plate 22b is brought into contact with the indoor surface of the heat insulating plate 5. Further, the mounting plate 21 is inserted into the bolt 16a and the nut 16b is screwed. At this time, it is necessary to confirm that the end 21a of the mounting plate 21 is securely engaged with the mounting piece 20b of the mounting hardware 20.
上記の如くしてボルト16aにナット16bを螺合させた後、これらのナット16bを夫々予め設定されたトルクで締結することで、取付金物20,支持金物15に対し、断熱板5を挟んだ状態で外壁パネル6を取り付けることが可能である。   After the nuts 16b are screwed onto the bolts 16a as described above, the nuts 16b are fastened with respective preset torques so that the heat insulating plate 5 is sandwiched between the mounting hardware 20 and the supporting hardware 15. It is possible to attach the outer wall panel 6 in a state.
上記の如くして取り付けられた断熱板5及び外壁パネル6は、両者が同じ長さを有するため、基礎3の上面から屋根パネル2の下面までの間に貼り付けられることになる。即ち、断熱板5を鉄骨躯体の屋外側の面に沿って貼り付けた外貼り断熱構法を実現することが可能となる。   Since both the heat insulating plate 5 and the outer wall panel 6 attached as described above have the same length, they are attached between the upper surface of the foundation 3 and the lower surface of the roof panel 2. That is, it is possible to realize an externally bonded heat insulating construction method in which the heat insulating plate 5 is bonded along the surface on the outdoor side of the steel frame.
特に、断熱板5と外壁パネル6の間にスペーサー18が配置された状態で、これらが躯体に取り付けられることから、断熱板5と外壁パネル6との間にはスペーサー18の厚さに対応する隙間が形成されることとなり、この隙間が通気層としての機能を発揮することが可能となる。   In particular, since the spacers 18 are disposed between the heat insulating plate 5 and the outer wall panel 6 in a state where the spacers 18 are disposed on the housing, the space between the heat insulating plate 5 and the outer wall panel 6 corresponds to the thickness of the spacer 18. A gap is formed, and this gap can exhibit a function as a ventilation layer.
また上記の如く、外壁パネル6を長手方向の2個所に設けたボルト16aを用いて躯体に取り付けることで、該外壁パネル6はボルト16aを中心として回動することが可能であり、躯体に複数の外壁パネル6を取り付けることで構成された外壁は非構造帳壁としての機能を有する。また躯体に水平力が作用して上下に配置された梁2が相対的に異なる方向に水平移動したとき、この移動に伴って外壁パネル6はボルト16aを中心として回動する所謂ロッキングし、破壊されることがない。   Further, as described above, the outer wall panel 6 can be rotated around the bolt 16a by attaching the outer wall panel 6 to the housing using the bolts 16a provided at two places in the longitudinal direction. The outer wall formed by attaching the outer wall panel 6 has a function as an unstructured book wall. Further, when the horizontal force is applied to the housing and the vertically arranged beams 2 are moved horizontally in different directions, the outer wall panel 6 is so-called locked and rotated with the bolt 16a as a center. It will not be done.
図5は断熱板及び外壁パネルを取付金物に取り付ける第2実施例の構成を説明する図である。尚、図に於いて前述の第1実施例と同一の部分及び同一の機能を有する部分には同一の符号を付して説明を省略する。   FIG. 5 is a view for explaining the configuration of the second embodiment in which the heat insulating plate and the outer wall panel are attached to the mounting hardware. In the figure, the same parts as those in the first embodiment and the parts having the same functions are denoted by the same reference numerals and the description thereof is omitted.
図に於いて、外壁パネル6の梁1の下フランジ1bに固定した取付金物20の取付片20bと対向する位置にはボルト25を挿通するためのボルト穴26aが厚さ方向に貫通して形成されている。このボルト穴26aに於ける外壁パネル6の表面側にはボルト25の頭部25aを嵌入させるのに充分な深さを持ったザグリ穴26bが形成されている。   In the figure, a bolt hole 26a for inserting a bolt 25 is formed through the thickness direction at a position facing the mounting piece 20b of the mounting hardware 20 fixed to the lower flange 1b of the beam 1 of the outer wall panel 6. Has been. A counterbore hole 26b having a depth sufficient to fit the head 25a of the bolt 25 is formed on the surface side of the outer wall panel 6 in the bolt hole 26a.
ボルト25は外壁パネル6に形成されたザグリ穴26bからボルト穴26a及び断熱板5のボルト穴5a,取付金物20の取付片20bを貫通して配置されてナット27が締結されている。この構造であっても、取付金物20に対して断熱板5を挟んだ状態で外壁パネル6を取り付けることが可能である。   The bolts 25 are arranged from a counterbore hole 26b formed in the outer wall panel 6 through the bolt hole 26a, the bolt hole 5a of the heat insulating plate 5, and the mounting piece 20b of the mounting hardware 20, and the nut 27 is fastened. Even with this structure, it is possible to attach the outer wall panel 6 with the heat insulating plate 5 sandwiched between the mounting hardware 20.
本実施例では、外壁パネル6を取付金物20に取り付けたとき、ボルト26が熱橋となるため、ザグリ穴26bに断熱材を充填することで断熱性能の改善をはかることが可能である。   In the present embodiment, when the outer wall panel 6 is attached to the mounting hardware 20, the bolt 26 becomes a thermal bridge, and therefore it is possible to improve the heat insulating performance by filling the counterbore hole 26b with a heat insulating material.
例えば外壁に形成した窓やドア等の開口部の上部に配置される外壁パネルは、長さ(上下方向の寸法)が小さくなり、且つ開口部の構造によっては前述した支持金物がない状態で躯体に取り付ける必要が生じることがある。このような場合、図5に示す第2実施例のボルト26に代えてタッピングビスを用い、該タッピングビスを外壁パネルの屋外側の面から梁の下フランジに固定した取付金物の取付片に向けて貫通させることで、取付金物に対して断熱板を挟んだ状態で外壁パネルを取り付けることが可能である。この場合であっても、タッピングビスの頭部を外壁パネルに嵌入させると共に該嵌入部に断熱材を充填することは必要である。   For example, the outer wall panel arranged on the upper part of the opening such as a window or door formed on the outer wall has a small length (vertical dimension), and depending on the structure of the opening, the casing without the above-mentioned support hardware May need to be attached to. In such a case, a tapping screw is used in place of the bolt 26 of the second embodiment shown in FIG. 5, and the tapping screw is directed from the outdoor side surface of the outer wall panel to the mounting piece of the mounting hardware fixed to the lower flange of the beam. It is possible to attach an outer wall panel in the state which pinched | interposed the heat insulation board with respect to the attachment metal fitting. Even in this case, it is necessary to fit the head portion of the tapping screw into the outer wall panel and to fill the fitting portion with the heat insulating material.
本発明に係る断熱材の取付構造を採用することによって、断熱材の外貼り断熱構法を実現することが可能となり、熱効率の高い鉄骨躯体を有する住宅を作業性良く実現することが出来る。   By adopting the heat insulating material mounting structure according to the present invention, it is possible to realize a heat insulating outer heat insulating construction method, and it is possible to realize a house having a steel frame with high thermal efficiency with good workability.
外貼り断熱構法を実現した建物の断面を示す図である。It is a figure which shows the cross section of the building which implement | achieved the external sticking heat insulation construction method. 外壁パネルの下端部を支持する構造を説明する図である。It is a figure explaining the structure which supports the lower end part of an outer wall panel. 外壁パネルの上端側を躯体に取り付ける取付構造を説明する図である。It is a figure explaining the attachment structure which attaches the upper end side of an outer wall panel to a housing. 補強部材の構成を説明する図である。It is a figure explaining the structure of a reinforcement member. 断熱板及び外壁パネルを取付金物に取り付ける第2実施例の構成を説明する図である。It is a figure explaining the structure of the 2nd Example which attaches a heat insulating board and an outer wall panel to an attachment metal fitting.
符号の説明Explanation of symbols
1 梁
1a 上フランジ
1b 下フランジ
2 屋根パネル
3 基礎
4 床パネル
5 断熱板
5a ボルト穴
6 外壁パネル
7,8 断熱材
9 下地パネル
10 天井
11 モルタル
15 支持金物
15a 載置片
15b 取付片
15c 固定片
16a,17a ボルト
16b,17b ナット
18 スペーサー
20 取付金物
20a 固定片
20b 取付片
21 取付プレート
21a,21b 端部
22 補強部材
22a スリーブ
22b プレート
25 ボルト
25a 頭部
26a ボルト穴
26b ザグリ穴
27 ナット
DESCRIPTION OF SYMBOLS 1 Beam 1a Upper flange 1b Lower flange 2 Roof panel 3 Foundation 4 Floor panel 5 Thermal insulation board 5a Bolt hole 6 Outer wall panel 7,8 Thermal insulation material 9 Ground panel 10 Ceiling 11 Mortar 15 Support metal 15a Mounting piece 15b Mounting piece 15c Fixed piece 16a, 17a Bolt 16b, 17b Nut 18 Spacer 20 Mounting hardware 20a Fixed piece 20b Mounting piece 21 Mounting plate 21a, 21b End 22 Reinforcing member 22a Sleeve 22b Plate 25 Bolt 25a Head 26a Bolt hole 26b Counterbore 27 Nut

Claims (1)

  1. 鉄骨躯体を構成する鉄骨梁に断熱材を取り付けるための取付構造であって、鉄骨梁に長尺状の又はピース状の取付金物を取り付けると共に該取付金物に板状の断熱材を対向させ、前記板状の断熱材の屋外側の面に外壁パネルを沿わせて該外壁パネルと板状の断熱材を前記取付金物に取り付けたことを特徴とする断熱材の取付構造。
    An attachment structure for attaching a heat insulating material to a steel beam constituting a steel frame, wherein a long or piece-like attachment metal is attached to the steel beam and a plate-like heat insulating material is opposed to the attachment metal, An installation structure for a heat insulating material, wherein the outer wall panel is placed along the outdoor surface of the plate-shaped heat insulating material, and the outer wall panel and the plate-shaped heat insulating material are attached to the mounting hardware.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007056456A (en) * 2005-08-22 2007-03-08 Asahi Kasei Homes Kk Waterproof structure of exterior wall joint part
JP2007321523A (en) * 2006-06-05 2007-12-13 Tokyu Construction Co Ltd Sleeve for outside heat insulation
KR101017206B1 (en) 2009-08-18 2011-02-25 대림산업 주식회사 Install structure of insulating panel using guard track
JP2012122300A (en) * 2010-12-10 2012-06-28 Asahi Kasei Homes Co Fitting structure of composite panel
JP2013091988A (en) * 2011-10-26 2013-05-16 Asahi Kasei Homes Co Attaching structure of composite panel
JP2013096094A (en) * 2011-10-28 2013-05-20 Asahi Kasei Homes Co Structure for attaching composite panel
WO2016190610A1 (en) * 2015-05-26 2016-12-01 주식회사 동건 Thermal insulator module and thermal insulating wall structure using same and thermal insulating wall construction method using same
JP2017014745A (en) * 2015-06-29 2017-01-19 旭化成ホームズ株式会社 External wall structure of building

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007056456A (en) * 2005-08-22 2007-03-08 Asahi Kasei Homes Kk Waterproof structure of exterior wall joint part
JP2007321523A (en) * 2006-06-05 2007-12-13 Tokyu Construction Co Ltd Sleeve for outside heat insulation
KR101017206B1 (en) 2009-08-18 2011-02-25 대림산업 주식회사 Install structure of insulating panel using guard track
JP2012122300A (en) * 2010-12-10 2012-06-28 Asahi Kasei Homes Co Fitting structure of composite panel
JP2013091988A (en) * 2011-10-26 2013-05-16 Asahi Kasei Homes Co Attaching structure of composite panel
JP2013096094A (en) * 2011-10-28 2013-05-20 Asahi Kasei Homes Co Structure for attaching composite panel
WO2016190610A1 (en) * 2015-05-26 2016-12-01 주식회사 동건 Thermal insulator module and thermal insulating wall structure using same and thermal insulating wall construction method using same
JP2017014745A (en) * 2015-06-29 2017-01-19 旭化成ホームズ株式会社 External wall structure of building

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