A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DOWNPIPE STRUCTURE
To provide a downpipe structure in which the malfunction hardly occurs when a downpipe is thermally expanded/shrunk, and which can suppress the damage on the downpipe at the earthquake.SOLUTION: A downpipe structure 1 includes an upper downpipe, a lower downpipe 4 and an intermediate gutter 5. The intermediate gutter 5 includes an upper cylindrical part 10 and a lower cylindrical part 11. The upper cylindrical part 10 includes an upper large cylindrical part 12 to which the upper downpipe is communicatively connected in a manner being slidable in the vertical direction and an upper small cylindrical part 13. The lower cylindrical part 11 includes a lower large cylindrical part 14 and a lower small cylindrical part 15 which is communicatively connected to the lower downpipe 4. When the vertical length of the upper small cylindrical part 13 is defined as B1, the external dimension of the upper small cylindrical part 13 is defined as d1, the internal dimension of the upper end part of the lower large cylindrical part 14 is defined as D1, the radial thickness of the upper end part of the lower large cylindrical part 14 is defined as t1, the vertical length of the lower small cylindrical part 15 is defined as B2, the external dimension of the lower small cylindrical part 15 is defined as d2, the internal dimension of the upper end part of the lower downpipe 4 is defined as D2 and the radial thickness of the upper end part of the lower downpipe 4 is defined as t2, B1≤(1+t1/D1)(D1-d1), B2≤(1+t2/D2)(D2-d2).SELECTED DRAWING: Figure 3
【課題】縦樋が熱伸縮した際に不具合が生じにくく、地震の際に縦樋の破損を抑制することができる縦樋構造を提供する。【解決手段】縦樋構造１は、上縦樋と下縦樋４と中間樋５を備える。中間樋５は、上筒部１０と下筒部１１を含む。上筒部１０は、上縦樋が上下方向にスライド可能に連通接続される上大筒部１２と、上小筒部１３を有する。下筒部１１は、下大筒部１４と、下縦樋４に連通接続される下小筒部１５を有する。上小筒部１３の上下長さをＢ１、上小筒部１３の外寸をｄ１、下大筒部１４の上端部の内寸をＤ１、下大筒部１４の上端部の肉厚をｔ１、下小筒部１５の上下長さをＢ２、下小筒部１５の外寸をｄ２、下縦樋４の上端部の内寸をＤ２、下縦樋４の上端部の肉厚をｔ２としたときに、Ｂ１≦（１＋ｔ１／Ｄ１）（Ｄ１２−ｄ１２）１／２、Ｂ２≦（１＋ｔ２／Ｄ２）（Ｄ２２−ｄ２２）１／２の関係にある。【選択図】図３
DOWNPIPE STRUCTURE
To provide a downpipe structure in which the malfunction hardly occurs when a downpipe is thermally expanded/shrunk, and which can suppress the damage on the downpipe at the earthquake.SOLUTION: A downpipe structure 1 includes an upper downpipe, a lower downpipe 4 and an intermediate gutter 5. The intermediate gutter 5 includes an upper cylindrical part 10 and a lower cylindrical part 11. The upper cylindrical part 10 includes an upper large cylindrical part 12 to which the upper downpipe is communicatively connected in a manner being slidable in the vertical direction and an upper small cylindrical part 13. The lower cylindrical part 11 includes a lower large cylindrical part 14 and a lower small cylindrical part 15 which is communicatively connected to the lower downpipe 4. When the vertical length of the upper small cylindrical part 13 is defined as B1, the external dimension of the upper small cylindrical part 13 is defined as d1, the internal dimension of the upper end part of the lower large cylindrical part 14 is defined as D1, the radial thickness of the upper end part of the lower large cylindrical part 14 is defined as t1, the vertical length of the lower small cylindrical part 15 is defined as B2, the external dimension of the lower small cylindrical part 15 is defined as d2, the internal dimension of the upper end part of the lower downpipe 4 is defined as D2 and the radial thickness of the upper end part of the lower downpipe 4 is defined as t2, B1≤(1+t1/D1)(D1-d1), B2≤(1+t2/D2)(D2-d2).SELECTED DRAWING: Figure 3
【課題】縦樋が熱伸縮した際に不具合が生じにくく、地震の際に縦樋の破損を抑制することができる縦樋構造を提供する。【解決手段】縦樋構造１は、上縦樋と下縦樋４と中間樋５を備える。中間樋５は、上筒部１０と下筒部１１を含む。上筒部１０は、上縦樋が上下方向にスライド可能に連通接続される上大筒部１２と、上小筒部１３を有する。下筒部１１は、下大筒部１４と、下縦樋４に連通接続される下小筒部１５を有する。上小筒部１３の上下長さをＢ１、上小筒部１３の外寸をｄ１、下大筒部１４の上端部の内寸をＤ１、下大筒部１４の上端部の肉厚をｔ１、下小筒部１５の上下長さをＢ２、下小筒部１５の外寸をｄ２、下縦樋４の上端部の内寸をＤ２、下縦樋４の上端部の肉厚をｔ２としたときに、Ｂ１≦（１＋ｔ１／Ｄ１）（Ｄ１２−ｄ１２）１／２、Ｂ２≦（１＋ｔ２／Ｄ２）（Ｄ２２−ｄ２２）１／２の関係にある。【選択図】図３
DOWNPIPE STRUCTURE
縦樋構造
MATSUMOTO KOJI (author) / NISHII YASUMASA (author)
2018-11-01
Patent
Electronic Resource
Japanese
IPC:
E04D
ROOF COVERINGS
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Dacheindeckungen