JP5667865B2 - Roof structure - Google Patents

Roof structure Download PDF

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JP5667865B2
JP5667865B2 JP2010285040A JP2010285040A JP5667865B2 JP 5667865 B2 JP5667865 B2 JP 5667865B2 JP 2010285040 A JP2010285040 A JP 2010285040A JP 2010285040 A JP2010285040 A JP 2010285040A JP 5667865 B2 JP5667865 B2 JP 5667865B2
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airtight
airtight sheet
roof structure
sheet
flat deck
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JP2012132200A (en
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克行 田中
克行 田中
歩 檜垣
歩 檜垣
秀幸 渡邊
秀幸 渡邊
克清 大木
克清 大木
巧 寺田
巧 寺田
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Takenaka Corp
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この発明は、特に云えば清掃工場のごみピットや汚水処理場の汚水処理槽等の建屋において、一時的に仮置きしたごみや汚水等から発生する臭気が建屋外へ漏れ出ないように閉じ込めるため、気密性シートで気密構造に覆った屋根構造の技術分野に属する。   The present invention is particularly effective in confining odors generated from temporarily placed waste or sewage in a waste pit of a cleaning factory or a sewage treatment tank of a sewage treatment plant so as not to leak outside the building. It belongs to the technical field of roof structure covered with airtight structure with airtight sheet.

一般に、一般家庭や工場等で排出された大量のゴミは、ごみ回収用のトラックで回収されて清掃工場に運ばれた後、清掃工場に設けられたごみピット建屋へ運ばれ、焼却炉へ移されるまでごみピットにおいて一時的に仮置きされる。このとき、ごみピットに仮置きされたごみから、非常にきつい臭気が発生し、現場の作業員も苦慮している上、ゴミの臭気がごみピット建屋内から漏れ出ると近隣住民から苦情が寄せられることが懸念される。このことは、汚水処理場の汚水処理槽等の建屋においても同様である。
そのため、例えば図10に示すように、鉄骨梁3、3の間を小梁4で接合した屋根架構の上面を折版5で葺いて成る建屋の屋根構造2の前記折版5の下面に、防臭用の気密性シート8を敷設して臭気を閉じ込める気密状態とし、建屋からごみの臭気が一切漏れ出ないように完全な防臭対策がなされている。
しかし、前記折版5の下面へ長尺の気密性シート8を敷設する作業は、同折版5の凹凸納まりへ気密性シート8を貼り付けることから、作業が非常に面倒で手間が掛かることが問題となっていた。しかも、ごみピットや汚染処理槽の建屋の屋根構造2は、ごみピットの床面から高さ約50mの高い所に位置することから、折版5の設置作業や、気密性シート8の敷設作業を行う作業員の作業足場を仮設する必要があるし、更には作業員が建屋の床面へ落下することを防止する落下防止ネット等の安全対策を設ける必要があり、その作業足場や落下防止ネットの仮設に時間が掛かり工期が長期化して非常に不経済である。
In general, a large amount of garbage discharged from ordinary households and factories is collected by a truck for collecting garbage and transported to a garbage collection factory, and then to a garbage pit building at the garbage factory and transferred to an incinerator. Temporary placement in the garbage pit until At this time, the trash temporarily placed in the garbage pit generated a very harsh odor and the workers on site were struggling, and if the odor of garbage leaked from the garbage pit building, complaints from neighboring residents came. There is a concern that The same applies to buildings such as sewage treatment tanks in sewage treatment plants.
Therefore, for example, as shown in FIG. 10, on the lower surface of the folding plate 5 of the roof structure 2 of the building formed by rolling the upper surface of the roof frame in which the steel beams 3 and 3 are joined by the small beam 4 with the folding plate 5, A deodorizing airtight sheet 8 is laid to achieve an airtight state in which odors are trapped, and complete deodorization measures are taken so that no odor of garbage leaks from the building.
However, the work of laying the long airtight sheet 8 on the lower surface of the folding plate 5 is because the airtight sheet 8 is attached to the concave and convex portions of the folding plate 5, so that the work is very troublesome and time-consuming. Was a problem. Moreover, since the roof structure 2 of the building of the garbage pit and the pollution treatment tank is located at a height of about 50 m from the floor of the garbage pit, the folding plate 5 is installed and the airtight sheet 8 is installed. It is necessary to provide a temporary work platform for the workers who perform the work, and to provide safety measures such as a fall prevention net that prevents the workers from falling to the floor of the building. Temporary construction of the net takes time and the construction period is prolonged, which is very uneconomical.

ところで、建物を気密構造とする技術としては、例えば下記特許文献1及び2に開示されており既に実用に供されている。
下記特許文献1は、床梁間に設けられた床根太の上面に床版が設置され、各床板の上面に壁パネルが立設された建物の気密構造である。各床板の上面から壁パネルの下部を経由して各床梁の外側面に至る気密性シートが敷設され、床梁と床との間の気密性を高めた構成である。
また、下記特許文献2に開示された建物の気密構造は、天井面の全面に天井野縁が配置され、該天井野縁の下面に気密性シートが敷設されて形成された天井気密面と、独立柱、間仕切壁及び内壁などの天井気密面と交差する部分を気密構造とする技術である。
By the way, as a technique for making a building an airtight structure, for example, it is disclosed in the following Patent Documents 1 and 2, and has already been put into practical use.
Patent Document 1 below is an airtight structure of a building in which a floor slab is installed on the upper surface of a floor joist provided between floor beams, and a wall panel is erected on the upper surface of each floor board. An airtight sheet extending from the upper surface of each floor panel to the outer surface of each floor beam through the lower part of the wall panel is laid to improve the airtightness between the floor beam and the floor.
In addition, the airtight structure of the building disclosed in Patent Document 2 below is a ceiling airtight surface formed by arranging a ceiling field edge on the entire surface of the ceiling surface and laying an airtight sheet on the lower surface of the ceiling field edge, This is a technique in which airtight structures are formed at portions that intersect with ceiling airtight surfaces such as independent columns, partition walls, and inner walls.

特開平11−36500号公報JP-A-11-36500 特開2001−254473号公報JP 2001-254473 A

上記特許文献1及び2に開示された構造物の気密構造は、構造物の特に梁と床面、或いは柱や壁と床面との交差部分を気密性シートを用いて気密構造とすることは認められるものの、清掃工場のごみピットや汚水処理場の汚水処理槽等の建屋における屋根構造の気密構造を対象とする技術ではない。
また、特許文献2に開示された構造物の気密構造のように、天井野縁の下面へ気密性シートを敷設する場合、作業員は上向き作業姿勢となり非常に作業し難いばかりか、作業足場を仮設する必要があり工期が長期化することが考えられる。
The airtight structure of the structure disclosed in Patent Documents 1 and 2 described above is that the crossing portion of the structure, in particular, the beam and the floor surface, or the pillar, the wall, and the floor surface is formed into an airtight structure using an airtight sheet. Although it is recognized, it is not a technology that targets the airtight structure of the roof structure in buildings such as garbage pits in wastewater treatment plants and sewage treatment tanks in sewage treatment plants.
In addition, when an airtight sheet is laid on the lower surface of the ceiling edge as in the airtight structure of the structure disclosed in Patent Document 2, the worker is not only difficult to work in an upward working posture, but also has a working scaffold. Temporary construction is required and the construction period may be prolonged.

本発明の目的は、清掃工場のごみピットや汚水処理場の汚水処理槽等の建屋の特に屋根構造について臭気を閉じ込める気密構造を実現する技術、特に防臭用の気密性シートを使用して容易に、且つフラットデッキの上に乗って下向きの作業姿勢で迅速に施工することができ、しかもフラットデッキは屋根を構成する折版の設置作業に必要な作業用足場を提供でき、落下防止用ネットの仮設を省けて、経済的に短工期に施工することができる屋根構造を提供する。   The object of the present invention is to easily use a technique for realizing an airtight structure that traps odors, particularly a roof structure of a building such as a garbage pit of a cleaning factory and a sewage treatment tank of a sewage treatment plant, particularly using an airtight sheet for deodorization In addition, it can be installed quickly on a flat deck in a downward working posture, and the flat deck can provide a work platform necessary for the installation work of the folding plates that constitute the roof. Provide a roof structure that can be constructed economically in a short construction period, eliminating temporary construction.

上記の課題を解決するための手段として、請求項1に記載した発明に係る屋根構造は、
ごみピットや汚水処理槽等の建屋における屋根構造において、
鉄骨により架構された屋根架構の上面を折版で葺いて成る屋根構造の鉄骨梁の下フランジ30b間へフラットデッキが架設され、前記フラットデッキの上面に気密性シートが敷設されており
前記気密性シートの周縁部が周接する部材(3、9、13、14)の立ち上がり面に沿ってシール材87が設けられ、該シール材87へ前記気密性シート8の周縁部を前記シール材87に沿って貼り付けて、前記気密性シート8の周縁部と前記部材(3、9、13、14)の立ち上がり面との境界部分の隙間を塞ぎ、前記気密性シート8が気密構造に止着されていることを特徴とする。
As a means for solving the above problems, the roof structure according to the invention described in claim 1 is:
In the roof structure in buildings such as garbage pits and sewage treatment tanks ,
Flat deck 7 to between the lower flange 30b of the steel beams 3 roof structure 2 formed by blow the upper surface of the roof Frames are Frames by steel in Oriban 5 is bridged, airtight sheet 8 on the upper surface of the flat deck 7 It has been laid,
A sealing material 87 is provided along the rising surface of the member (3, 9, 13, 14) with which the peripheral edge of the airtight sheet 8 is in contact , and the peripheral edge of the airtight sheet 8 is sealed to the sealing material 87. Affixed along the material 87, the gap between the peripheral edge of the airtight sheet 8 and the rising surface of the member (3, 9, 13, 14) is closed, and the airtight sheet 8 has an airtight structure. It is characterized by being fixed.

請求項2に記載した発明は、請求項1に記載した屋根構造において、
長尺の気密性シートがフラットデッキの上面へ敷設され、同気密性シートの長手方向の縁部は該気密性シートの周縁部が周接する部材の立ち上がり面へ気密構造に止着され、長手方向の端部も前記周接する部材の立ち上がり面へ気密構造に止着され、更に長尺の気密性シート同士の隣接縁同士も気密的に接合されていることを特徴とする。
The invention described in claim 2 is the roof structure described in claim 1,
A long airtight sheet is laid on the upper surface of the flat deck, and the longitudinal edge of the airtight sheet is fastened to the rising surface of the member that the peripheral edge of the airtight sheet is in contact with the airtight structure. Further, the end portion of the sheet is fixed to the rising surface of the circumferentially contacting member in an airtight structure, and adjacent edges of the long airtight sheets are also airtightly joined.

本発明に係る屋根構造は、清掃工場のごみピットや汚水処理場の汚水処理槽等の建屋の屋根構造2を構成する鉄骨梁3の下フランジ30b、30b間へフラットデッキ7を架設して平坦面を形成し、該平坦なフラットデッキ7の上面へ防臭用の気密性シート8を敷設するので、臭気を閉じ込める気密構造を実現でき、該気密性シート8を使用して容易に、且つフラットデッキ7の上に乗って下向きの作業姿勢で迅速に施工することができる。
また、屋根を構成する折版5の設置作業に際し、鉄骨梁3の下フランジ30b間へ架設したフラットデッキ7を作業員の足場代用とすることができるので、前記フラットデッキ7が折版5の設置作業に必要な作業足場を提供でき、架設足場を省略でき、作業員の安全性も確保できるから落下防止用ネットの仮設も省けて、経済的に短工期に施工することができる。
The roof structure according to the present invention is a flat structure in which a flat deck 7 is installed between lower flanges 30b, 30b of a steel beam 3 constituting a roof structure 2 of a building such as a garbage pit of a cleaning factory or a sewage treatment tank of a sewage treatment plant. Since an airtight sheet 8 for deodorizing is laid on the upper surface of the flat flat deck 7, an airtight structure for trapping odor can be realized, and the airtight sheet 8 can be used easily and flat deck. 7 can be quickly installed in a downward working posture.
Further, when the folding plate 5 constituting the roof is installed, the flat deck 7 installed between the lower flanges 30b of the steel beam 3 can be used as a scaffold for the worker. A work platform necessary for installation work can be provided, an installation scaffold can be omitted, and the safety of workers can be ensured, so that a temporary installation of a fall prevention net can be omitted and the construction can be carried out economically.

ごみピット建屋の要部を示した正面図である。It is the front view which showed the principal part of the garbage pit building. 図1に示すU−U線矢視の拡大断面図である。It is an expanded sectional view of the UU line arrow shown in FIG. 鉄骨梁、フラットデッキ及び気密性シートの関係を示した斜視図である。It is the perspective view which showed the relationship between a steel frame beam, a flat deck, and an airtight sheet | seat. 本発明に係る屋根構造を示した斜視図である。It is the perspective view which showed the roof structure concerning this invention. 気密性シートを省略した図2に示すV−V線矢視の拡大断面図である。It is an expanded sectional view of the VV line arrow shown in Drawing 2 which omitted an airtight sheet. 本発明に係る屋根構造を示した斜視図である。It is the perspective view which showed the roof structure concerning this invention. 気密性シートの敷設作業を示した説明図である。It is explanatory drawing which showed the installation operation | work of an airtight sheet | seat. (a)〜(d)は隣接する気密性シートの重ね部分を接合する手順を示した説明図である。(A)-(d) is explanatory drawing which showed the procedure which joins the overlap part of the airtight sheet | seat which adjoins. 図2に示すW部の拡大図である。It is an enlarged view of the W section shown in FIG. 従来のごみピット建屋の屋根構造を示した拡大図である。It is the enlarged view which showed the roof structure of the conventional garbage pit building.

本発明に係る屋根構造は、一例として鉄骨梁3の間を小梁4で接合した屋根架構の上面を折版5で葺いて成る屋根構造2の鉄骨梁3の下フランジ30b間へフラットデッキ7が架設されており、フラットデッキ7の上面に気密性シート8が敷設され、気密性シート8の周縁部が周接する各鉄骨梁9、柱14又は躯体壁面13へ気密構造に止着されている。   In the roof structure according to the present invention, as an example, the flat deck 7 is inserted between the lower flanges 30b of the steel beam 3 of the roof structure 2 in which the upper surface of the roof frame in which the steel beam 3 is joined by the small beam 4 is wound with the folding plate 5. The airtight sheet 8 is laid on the upper surface of the flat deck 7, and is fixed to the steel beam 9, the column 14, or the frame wall surface 13 around the periphery of the airtight sheet 8 in an airtight structure. .

以下に、本発明に係る屋根構造を図示した実施例に基づいて説明する。
図1は、建屋1の屋根構造2の一例として清掃工場のごみピット建屋の全体図を示している。
図1に示すごみピット建屋1は、ごみ回収用のトラック10で回収されたごみ12を一時的に仮置きするごみピット11が地上から深さ約16mで形成され、ごみピット11の床面から約55mの高さに屋根構造2が構築されている。前記屋根構造2は、図2に拡大して示すように、同屋根構造2に沿って一例として約4.75mの間隔をあけて設置された鉄骨梁3、3の間を小梁4で接合して屋根架構が形成され、同屋根架構の上面に台形波形状の折版5で葺いた構成である。
前記鉄骨梁3は、図2に示すようにH型鋼で構成されており、その寸法は一例としてフランジ30a、30bの幅が30cm程度、ウェブ31の成が90cm程度である。前記鉄骨梁3の上フランジ部30aとウェブ31の上方部分には連結部材6を溶接して接合しており、前記隣接する鉄骨梁同士3、3は、前記連結部材6へボルト6a…で接合した小梁4よって接合されている。前記小梁4もH型鋼で構成されており、その寸法は一例としてフランジの幅が12cm程度、ウェブの成が25cmである。
なお、鉄骨梁3の上フランジ30aの上面には、同上面と小梁の上面とが面一となるように調整部材32が設置されている。
Below, the roof structure concerning the present invention is explained based on the illustrated example.
FIG. 1 shows an overall view of a garbage pit building of a cleaning factory as an example of the roof structure 2 of the building 1.
In the garbage pit building 1 shown in FIG. 1, a garbage pit 11 for temporarily placing the garbage 12 collected by the truck 10 for collecting garbage is formed at a depth of about 16 m from the ground. The roof structure 2 is constructed at a height of about 55 m. As shown in an enlarged view in FIG. 2, the roof structure 2 is joined by a small beam 4 between steel beams 3 and 3 installed at an interval of about 4.75 m as an example along the roof structure 2. Thus, a roof frame is formed, and the upper surface of the roof frame is rolled up with a trapezoidal wave shaped folding plate 5.
As shown in FIG. 2, the steel beam 3 is made of H-shaped steel. As an example, the width of the flanges 30a and 30b is about 30 cm, and the web 31 is about 90 cm. A connecting member 6 is welded and joined to the upper flange portion 30a of the steel beam 3 and the upper portion of the web 31, and the adjacent steel beams 3 and 3 are joined to the connecting member 6 with bolts 6a. Are joined by the small beams 4. The beam 4 is also made of H-shaped steel, and as an example, the width of the flange is about 12 cm and the web is 25 cm.
An adjustment member 32 is installed on the upper surface of the upper flange 30a of the steel beam 3 so that the upper surface and the upper surface of the small beam are flush with each other.

前記鉄骨梁3の下フランジ30b、30bの間には、図2〜4に示すように、鋼製のフラットデッキ7が鉄骨梁3の長手方向に沿って複数枚並べて架け渡され、鉄骨梁3の下フランジ30b、30bへ載置された該フラットデッキ7の縁部が、同鉄骨梁3の下フランジ30bの上面へ溶接7aされて強固に固定されている。
前記フラットデッキ7は厚さが1.6mm程度であり、図3及び図5に示すように、上面が平坦で上端部に閉じ合わせ部71を持つ長手方向の補強リブ70を下面側に複数条備えている。そして、図5に示すように、一方の縁部には、フラットデッキ7の上面より一段下がった水平片72が形成されており、他方の縁部には、隣接するフラットデッキ7の閉じ合わせ部71へ差し込む直角折り曲げ部73が形成されている。隣接するフラットデッキ7、7同士は、一方のフラットデッキ7の直角折り曲げ部73が形成された側の端部を、他方のフラットデッキ7の水平片72へ載置させ、閉じ合わせ部71へ前記直角折り曲げ部73を差し込むことにより接合される。
Between the lower flanges 30b and 30b of the steel beam 3, a plurality of flat decks 7 made of steel are arranged side by side along the longitudinal direction of the steel beam 3, as shown in FIGS. The edge of the flat deck 7 placed on the lower flanges 30b, 30b is welded to the upper surface of the lower flange 30b of the steel beam 3 and fixed firmly.
The flat deck 7 has a thickness of about 1.6 mm, and as shown in FIGS. 3 and 5, a plurality of longitudinal reinforcing ribs 70 having a flat upper surface and a closing portion 71 at the upper end portion are provided on the lower surface side. I have. As shown in FIG. 5, a horizontal piece 72 is formed on one edge portion that is one step lower than the upper surface of the flat deck 7, and on the other edge portion is a closing portion of the adjacent flat deck 7. A right-angle bent portion 73 to be inserted into 71 is formed. Adjacent flat decks 7, 7 are placed on the horizontal piece 72 of the other flat deck 7 on the side where the right-angle bent part 73 of one flat deck 7 is formed, and to the closing part 71. It joins by inserting the right angle bending part 73. FIG.

上記鉄骨梁3の下フランジ30b、30bの間に設置された複数のフラットデッキ7のうち、鉄骨梁3と直交する鉄骨梁9に隣接するフラットデッキ7は、前記直交する鉄骨梁9の長手方向へ沿う縁部が該鉄骨梁9の下フランジ部の上面へ載置されて溶接等で強固に固定されている(図4及び図6を参照)。
また、図6に示すように、直交する鉄骨梁3、9が交差する位置に柱14がある場合には、前記柱14の側面へ支持部材14aを溶接等により固定し、該支持部材14aの上面へ載置させたフラットデッキ7の縁部を溶接して強固に固定させる。因みに、前記柱14は、一例として約40cm×40cm角程度の角形鋼を用いた構成を示しているが、H型鋼を用いた構成で実施することもできる。また、前記支持部材14aは、柱14が前記寸法で成る場合、柱14の側面から約5cm程度外方へ突き出す構成とする。
なお、図6に示す実施例の場合は、前記鉄骨梁3に直交する鉄骨梁9の上下フランジ間へガセットプレート9aを溶接して固定し、該ガセットプレート9aへ溶接又はボルト接合により固定された小梁40が設けられており、上記構成のフラットデッキ7は、鉄骨梁3と小梁40の下フランジ間へ架設させる。なお、詳細に図示することは省略したが、この場合の折版屋根葺きは、鉄骨梁3、9の上フランジの上部へ公知の例えばC型鋼による母屋を架設し、タイトフレームを設けて葺いても良い。
Among the plurality of flat decks 7 installed between the lower flanges 30b and 30b of the steel beam 3, the flat deck 7 adjacent to the steel beam 9 orthogonal to the steel beam 3 is the longitudinal direction of the orthogonal steel beam 9 The edge portion extending along the edge is placed on the upper surface of the lower flange portion of the steel beam 9 and is firmly fixed by welding or the like (see FIGS. 4 and 6).
Further, as shown in FIG. 6, when there is a column 14 at a position where the orthogonal steel beams 3 and 9 intersect, a support member 14a is fixed to the side surface of the column 14 by welding or the like, and the support member 14a The edge of the flat deck 7 placed on the upper surface is welded and firmly fixed. Incidentally, although the said pillar 14 has shown the structure using the square steel of about 40 cm x 40 cm square as an example, it can also be implemented with the structure using an H-shaped steel. In addition, the support member 14a is configured to protrude outward from the side surface of the column 14 by about 5 cm when the column 14 has the above dimensions.
In the case of the embodiment shown in FIG. 6, the gusset plate 9a is fixed by welding between the upper and lower flanges of the steel beam 9 orthogonal to the steel beam 3, and is fixed to the gusset plate 9a by welding or bolting. A small beam 40 is provided, and the flat deck 7 having the above-described configuration is installed between the steel beam 3 and the lower flange of the small beam 40. Although illustration in detail is omitted, the folding roofing in this case is carried out by building a known purlin made of, for example, C type steel on the upper flanges of the steel beams 3 and 9 and providing a tight frame. Also good.

上記鉄骨梁3の下フランジ30b、30b間に設置されたフラットデッキ7の上面には、その全面にわたり防臭用の気密性シート8が敷設されており、臭気を閉じ込める気密構造とされている。
以下に、フラットデッキ7の上面に気密性シート8を敷設する作業を図7及び8に基づいて説明する。
前記長尺の気密性シート8は、一例として塩化ビニル製で、厚さ2mm程度、幅1.8m程度であり、ロール状に巻かれた状態で現場に運ばれる。
先ず、上述したように鉄骨梁3、3の下フランジ30b、30b間に設置したフラットデッキ7の上面へ専用接着剤を塗布し、図7に示すように、その上からロール状の気密性シート8を回転させて、該気密性シートをフラットデッキ7の上面へ貼り付ける。なお、隣接する気密性シート8、8相互の接合縁同士80、80は、図7に拡大して示すように、15mm〜20mm程度に重ね合わせる。そして、フラットデッキ7の上面に気密性シート8を貼り付け終えたら、同気密性シート8の上面からローラーで満遍なく押圧し、該気密性シート8を前記フラットデッキ7の上面へ圧着させる。
次に、前記専用接着剤が乾き、前記気密性シート8がフラットデッキ7の上面へ完全に貼り付いた後、図8(a)に示すように、前記気密性シート8、8相互の接合縁部同士80、80の重なった部分を落とし込み用工具81を用いてV字状又はU字状にカットする。カットする深さは気密性シート8の厚みの1/2〜2/3程度とする。
次に、図8(b)に示すように、前記カットした接合縁部80へ目地溶接棒(図示は省略)を差し込んだノズル84を設置し、溶接機82を手前に引きながら、溶接作業を行う。その後、図8(c)に示すように、気密性シート8の上面から若干盛り上がった溶接済みの目地溶接棒83へトリムガイド85を当てがい、スパチュラナイフ86等で一度荒削りをした後、図8(d)に示すように、前記気密性シート8の上面と略面一となるように丁寧に目地仕上げを行う。
On the upper surface of the flat deck 7 installed between the lower flanges 30b, 30b of the steel beam 3, an airtight sheet 8 for deodorization is laid over the entire surface, thereby forming an airtight structure that traps odors.
Below, the operation | work which lays the airtight sheet | seat 8 on the upper surface of the flat deck 7 is demonstrated based on FIG.
The long airtight sheet 8 is made of vinyl chloride as an example, and has a thickness of about 2 mm and a width of about 1.8 m, and is carried to the site in a rolled state.
First, as described above, a special adhesive is applied to the upper surface of the flat deck 7 installed between the lower flanges 30b, 30b of the steel beams 3, 3, and as shown in FIG. 8 is rotated to attach the airtight sheet to the upper surface of the flat deck 7. Adjacent airtight sheets 8, 8 are joined to each other at 80 to 80, as shown in an enlarged view in FIG. When the airtight sheet 8 is pasted on the upper surface of the flat deck 7, the airtight sheet 8 is pressed evenly with a roller from the upper surface of the airtight sheet 8, so that the airtight sheet 8 is pressed against the upper surface of the flat deck 7.
Next, after the dedicated adhesive is dried and the airtight sheet 8 is completely adhered to the upper surface of the flat deck 7, as shown in FIG. 8 (a), the joint edges of the airtight sheets 8 and 8 are mutually connected. The overlapping part of the parts 80, 80 is cut into a V shape or a U shape using the dropping tool 81. The depth to be cut is about 1/2 to 2/3 of the thickness of the airtight sheet 8.
Next, as shown in FIG. 8B, a nozzle 84 with a joint welding rod (not shown) inserted into the cut joint edge 80 is installed, and welding work is performed while pulling the welding machine 82 forward. Do. Thereafter, as shown in FIG. 8C, a trim guide 85 is applied to a welded joint welding rod 83 slightly raised from the upper surface of the airtight sheet 8, and once roughed with a spatula knife 86 or the like, As shown in (d), the joint is carefully finished so as to be substantially flush with the upper surface of the airtight sheet 8.

上記気密性シート8の周縁部は、該気密性シート8の周縁部が周接する部材の立ち上がり面へ気密構造に止着されている。前記部材の立ち上がり面とは、大梁(3又は9)や小梁等40の鉄骨梁のウェブ面、柱14の側面、鉄筋コンクリート壁面や軽量気泡コンクリート壁面等の躯体壁面13をいう。
具体的には、前記気密性シート8の鉄骨梁3の長手方向に沿う縁部は、図9に示すように、フラットデッキ7の縁部を越えた前記鉄骨梁3の下フランジ部30b又はウェブ31の境界部分に、鉄骨梁3の長手方向へ沿ってシール材87を設け、該シール材87の上から気密性シート8の縁部を貼り付けて、該境界部分の隙間を塞いで気密構造にする。なお、前記シール材87は不定形又は定形の例えばウレタン系、シリコン系、エポキシ系、アクリル系で構成されたものが使用される。
前記気密性シート8の周接する鉄骨梁9の長手方向に沿う縁部も、前記シール材87を用いて周接する鉄骨梁9の下フランジ又はウェブへ止着して気密構造にする。
但し、気密構造としては、前記鉄骨梁3、9のウェブへシール材87を止着した構成がより好ましい。
同様に、図1に示すように敷設した気密性シート8と躯体壁面13との境界部分や、図6に示すように敷設した気密性シート8と柱14の側面との境界部分においてもシール材87を使用して該境界部分の隙間を塞ぎ気密構造にする。
The peripheral portion of the airtight sheet 8 is fixed to the rising surface of the member that the peripheral portion of the airtight sheet 8 is in contact with the airtight structure. The rising surface of the member means a web surface of a steel beam such as a large beam (3 or 9) or a small beam 40, a side surface of a column 14, a frame wall surface 13 such as a reinforced concrete wall surface or a lightweight cellular concrete wall surface.
Specifically, the edge of the airtight sheet 8 along the longitudinal direction of the steel beam 3 is, as shown in FIG. 9, the lower flange portion 30b of the steel beam 3 or the web beyond the edge of the flat deck 7. 31 is provided with a sealing material 87 along the longitudinal direction of the steel beam 3, and an edge of the airtight sheet 8 is pasted on the sealing material 87 to close the gap between the boundary portions to form an airtight structure. To. In addition, the said sealing material 87 uses what was comprised by the amorphous type or a fixed type, for example, urethane type, a silicon type, an epoxy type, and an acrylic type.
An edge portion along the longitudinal direction of the steel beam 9 that is in contact with the airtight sheet 8 is also secured to the lower flange or web of the steel beam 9 that is in contact with the sealant 87 to form an airtight structure.
However, as the airtight structure, a configuration in which the sealing material 87 is fixed to the webs of the steel beams 3 and 9 is more preferable.
Similarly, in the boundary portion between the airtight sheet 8 and the frame wall surface 13 laid as shown in FIG. 1 and the boundary portion between the airtight sheet 8 and the side surface of the column 14 laid as shown in FIG. 87 is used to close the gap at the boundary portion to form an airtight structure.

したがって、本発明に係る屋根構造は、屋根構造2を構成する鉄骨梁3の下フランジ30b、30b間へフラットデッキ7を架設して平坦面を形成し、該平坦なフラットデッキ7の上面へ防臭用の気密性シート8を敷設して臭気を閉じ込める気密構造を実現できるので、該気密性シート8を使用して容易に、且つフラットデッキ7の上に乗って下向きの作業姿勢で迅速に施工することができる。   Therefore, in the roof structure according to the present invention, the flat deck 7 is installed between the lower flanges 30b and 30b of the steel beam 3 constituting the roof structure 2 to form a flat surface, and the upper surface of the flat flat deck 7 is deodorized. Since an airtight structure for confining odors can be realized by laying an airtight sheet 8 for use, the airtight sheet 8 can be used easily and quickly on a flat deck 7 in a downward working posture. be able to.

上記屋根架構の上面に設置される鋼製の折版5は、図2に示すように、断面が台形波形状であり、上辺部が上記小梁4へタイトフレーム用ボルト5aや溶接等で接合されている。前記折版を設置するに際し、作業員は鉄骨梁3の下フランジ30b、30b間に設置したフラットデッキ7を足場代用として作業を行うことができる。よって、前記フラットデッキ7が折版5の設置作業に必要な作業足場を提供でき、仮設足場を省略でき、作業員の安全性も確保できるから落下防止用ネットの仮設も省けて、経済的に短工期に施工することができる。 As shown in FIG. 2, the steel folding plate 5 installed on the upper surface of the roof frame has a trapezoidal cross section, and the upper side is joined to the small beam 4 by a tight frame bolt 5a, welding or the like. Has been. When installing the folding plate 5 , an operator can perform work by using the flat deck 7 installed between the lower flanges 30 b and 30 b of the steel beam 3 as a substitute for the scaffold. Therefore, the flat deck 7 can provide a work scaffold necessary for the work of installing the folding plate 5, the temporary scaffold can be omitted, and the safety of workers can be secured. Can be constructed in a short construction period.

以上に本発明を図示した実施例に基づいて説明したが、もとより本発明は実施例の構成に限定されるものではない。いわゆる当業者が必要に応じて行うであろう設計変更その他の応用、改変の範囲まで含むことを念のため申し添える。   Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the configuration of the embodiment. I would like to remind you that it includes the scope of design changes and other applications and modifications that will be performed by those skilled in the art as needed.

1 建屋
13 躯体壁面
2 屋根構造
3 鉄骨梁
30b 下フランジ
4 小梁
5 折版
5a タイトフレーム用ボルト
7 フラットデッキ
8 気密性シート
87 シール材
DESCRIPTION OF SYMBOLS 1 Building 13 Building wall surface 2 Roof structure 3 Steel beam 30b Lower flange 4 Beam 5 Folding plate 5a Tight frame bolt 7 Flat deck 8 Airtight sheet 87 Sealing material

Claims (2)

ごみピットや汚水処理槽等の建屋における屋根構造において、
鉄骨により架構された屋根架構の上面を折版で葺いて成る屋根構造の鉄骨梁の下フランジ間へフラットデッキが架設され、前記フラットデッキの上面に気密性シートが敷設されており
前記気密性シートの周縁部が周接する部材の立ち上がり面に沿ってシール材が設けられ、該シール材へ前記気密性シートの周縁部を前記シール材に沿って貼り付けて、前記気密性シートの周縁部と前記部材の立ち上がり面との境界部分の隙間を塞ぎ、前記気密性シートが気密構造に止着されていることを特徴とする、屋根構造。
In the roof structure in buildings such as garbage pits and sewage treatment tanks ,
Flat decks to between the lower flange of the steel beam of the roof structure formed by blow the upper surface of the roof Frames are Frames by steel at the bending plate is bridged, airtight sheet on the upper surface of the flat deck are laid,
A sealing material is provided along a rising surface of a member around which a peripheral edge of the airtight sheet is in contact , and a peripheral edge of the airtight sheet is attached to the sealing material along the sealing material, A roof structure , wherein a gap at a boundary portion between a peripheral edge portion and a rising surface of the member is closed, and the airtight sheet is fixed to the airtight structure.
長尺の気密性シートがフラットデッキの上面へ敷設され、同気密性シートの長手方向の縁部は該気密性シートの周縁部が周接する部材の立ち上がり面へ気密構造に止着され、長手方向の端部も前記周接する部材の立ち上がり面へ気密構造に止着され、更に長尺の気密性シート同士の隣接縁同士も気密的に接合されていることを特徴とする、請求項1に記載した屋根構造。   A long airtight sheet is laid on the upper surface of the flat deck, and the longitudinal edge of the airtight sheet is fastened to the rising surface of the member that the peripheral edge of the airtight sheet is in contact with the airtight structure. The end of each is also fixed to the rising surface of the circumferentially contacting member in an airtight structure, and the adjacent edges of the long airtight sheets are also airtightly joined to each other. Roof structure.
JP2010285040A 2010-12-21 2010-12-21 Roof structure Expired - Fee Related JP5667865B2 (en)

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