{"id":31706,"date":"2021-01-30T05:19:39","date_gmt":"2021-01-29T20:19:39","guid":{"rendered":"http:\/\/kochihen.replan.ne.jp\/?p=31706"},"modified":"2021-02-02T09:27:48","modified_gmt":"2021-02-02T00:27:48","slug":"%e3%80%90%e7%a9%8d%e9%9b%aa%e8%8d%b7%e9%87%8d%e3%82%92%e8%80%90%e3%81%88%e3%82%8b%e3%83%81%e3%83%a7%e3%83%bc%e3%83%8a%e6%a2%81%e3%81%a8%e6%9d%bf%e5%80%89%ef%bc%8f%e6%97%a5%e6%9c%ac%e4%ba%ba%e3%81%ae","status":"publish","type":"post","link":"https:\/\/kochihen.replan.ne.jp\/?p=31706","title":{"rendered":"\u3010\u7a4d\u96ea\u8377\u91cd\u3092\u8010\u3048\u308b\u30c1\u30e7\u30fc\u30ca\u6881\u3068\u677f\u5009\uff0f\u65e5\u672c\u4eba\u306e\u3044\u3044\u5bb6\u2473-2\u3011"},"content":{"rendered":"

\"\"<\/a>
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\n\u8377\u91cd\u306b\u5bfe\u3057\u3066\u306d\u3070\u308a\u7d9a\u3051\u3066\u304f\u308c\u308b\u3068\u3044\u3046\u300c\u6728\u7d44\u307f\u306e\u77e5\u6075\u300d\u3002
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\n\"\"<\/a>
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\n\"\"<\/a>
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\n\u4f3c\u3066\u3044\u308b\u90e8\u5206\u3068\u3001\u307e\u3063\u305f\u304f\u5909\u5bb9\u3057\u305f\u90e8\u5206\u3002\u6bd4\u8f03\u6587\u5316\u8ad6\u7684\u306a\u6df1\u3044\u8208\u5473\u3092\u6301\u3064\u3002<\/p>\n

English version\u2b07<\/p>\n

[Chona beam and Itakura that can withstand snow load \/ Japanese good house \u2473-2]<\/p>\n

Chona Liang, a building material name that is unfamiliar to you.
\nWhen I asked only the name, I wondered if I used chona (adze) to finish the wood surface of the beam.
\nAs you can imagine, it seems to use so-called “bent” wood for the beams.
\nDoes it mean that the finished shape resembles the shape of Chona?
\nThe Emukai family is estimated to have been built around 300 years ago in the early 18th century.
\nSince it is built in the snowy mountainous area of \u200b\u200bEtchu, the theme is the snow load in winter.
\nBasically, I think about making snow fall with gassho-zukuri, but the heavy snow quality in this area is
\nContinues to bring heavy loads to the roof.
\nWhen I was thinking about how to overcome the snowfall,
\nI brought a “root-bent” tree to the beam material to receive it and made it sticky.
\nIn the first place, a tree with a bent root cannot grow straight due to wind and snow,
\nIt shows that the root part has become greatly dwarfed.
\nIf the wood “endures” such difficulties and still grows above a certain level,
\n“Wooden wisdom” that keeps sticking to the load.
\nThe bent part is addressed to the outer circumference side, and it is combined with the pillar to support the house.
\nThe curvature conveys the strength of being “bearing”.<\/p>\n

And when the Chona beam joins the pillar in the center of the house,
\nIn this house, a wall is composed of “Itakura” between the pillars.
\nIn the photo above, the wall on the right is
\nThere are many “Kan” piercings between the pillars, and the plate material is dropped between the kans.
\nBecause it is a mountainous area and there are abundant structural materials in the surrounding area
\nThe structure is powerfully constructed using plenty of wood.
\nAlthough the structural strength of Kan has not yet been proved in Western-style architectural mechanics,
\nAs a very natural feeling, if it is a plaster wall instead of the Itakura wall,
\nI feel a little delicate. The plastered walls are usually made of thin wood to create the underlying structure “Kimai”.
\nIn some cases, there is also a simpler bamboo komai.
\nOn the other hand, the walls of Itakura and Kan are really heavy.
\nIf you give priority to structural stability, it is a much better choice.
\nTo that extent, it lacks design and is truly rugged, but it has the beauty of honesty.<\/p>\n

This photo was introduced yesterday,
\nThe chona beam is the node between the main body of the building’s gassho-zukuri and the entrance side of the building.
\nIt is clearly visible that the roof load of the gassho style is firmly received.
\nAlso, looking at the specifications of the opening on the right side, it can be seen that Kan and Itakura-zukuri support the structure.
\nThe timber frame is displayed as it is without any decoration.
\nThis earthen space functions as a “paper plow” factory
\nIn winter, it seems that women were connecting the absent house with migrant workers through such labor.
\nIt comes from the feeling of air.
\nIn an environment similar to Hokkaido, with snow and cold,
\nI’m thinking of seeing how Japanese people respond from ancient times.
\nHokkaido has made efforts to develop wooden structures with high heat insulation and airtightness against the cold.
\nAlso, unlike the highlands on the Sea of \u200b\u200bJapan side, the snow quality is light snow with low humidity.
\nI headed for the “no snowfall roof”.
\nA similar part and a completely transformed part. Has a deep interest in cross-cultural theory.<\/p>\n","protected":false},"excerpt":{"rendered":"

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