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Research in a Wet Snow Heavy Snowfall Area Regarding the Development of the Ventilation Construction Method Roof that does YUKIOROSHI with Unnecessary

湿雪大雪地区关于不需要雪浪的通风施工方法屋顶开发的研究

基本信息

批准号：
12555166
负责人：
FUKAZAWA Daisuke
金额：
$ 5.25万
依托单位：
NIIGATA INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2003
项目状态：
已结题

项目摘要

(1)The snow dimple occurs several days after the fresh snow wore it on zarame snow and be repeating occurrence and disappearance many times a winter.(2)The period from the snowfall to the snow disappear inside the tank that the layer of the snow is done unstably by the obstacle were 3 to 13 days, average 7.25th.(3)Melting snow water needs to snake it over, because it has frozen without coming off by surface tension when the roof slope is 20 or less degree.(4)As for the roof slope about 30 degree are practical, because the crown snow becomes easy to fall when it suddenly does it too much, although it is good to do suddenly and cause faced the south.(5)The melting snow performance of the ventilation melting snow construction method roof Is 6.7〜10.5kg/(m^2/day).(6)The resistance snow power of 210kg/m^2 is needed to make the architecture structure in the area of ground snow 1〜2m, and 420kg/m^2 in the area of m,630kg/m^2 over in the area of snow 3〜4m.(7)In the Hokuriku 4 prefecture where the highest in the past snow high is 1〜4 in the receiving of a benefit family becomes 1,330,000 family (72.7%) and the receiving of a benefit population becomes 4,130,000 people (73.6%).(8)Without being overconfident we need to rigidly enforce the YUKIOROSHI, when the heavy snowfall year, abnormal snowfall, abnormal low temperatures, incline load etc. were seen.

（1）雪坑在新雪在zarame雪上磨损后几天出现，并且在一个冬天重复出现和消失多次。（2）障碍物不稳定造成的雪层在池内从降雪到雪消失的时间为3 ~ 13天，平均7.25天。（3）融化的雪水需要蜿蜒而过，因为当屋顶坡度为20度或更小时，雪水已经冻结而不会因表面张力而脱落。(4)As对于屋顶坡度约30度是实际的，因为冠雪变得容易下降时，突然做太多，虽然它是好的，突然做，并导致面临的南。（5）通风融雪施工法屋面的融雪性能为6.7 <$10.5kg/（m^2/天）。（6）建筑结构在地面积雪1 <$2m处抗雪力为210 kg/m^2，在地面积雪1 m处抗雪力为420 kg/m^2，在地面积雪3 <$4m处抗雪力为630 kg/m^2以上。(7)In在北陆4县，在过去的雪高最高为1004的地方，受益家庭变为1，330，000个家庭（72.7%），受益人口变为4，130，000人（73.6%）。（8）当出现大雪年、异常降雪、异常低温、倾斜负荷等情况时，我们需要严格执行YUKIOROSHI，但不要过于自信。