Database construction of strong wind-speed increase information in Kyushu area

九州地区强风速增大信息数据库建设

基本信息

批准号：
11555152
负责人：
MAEDA Junji
金额：
$ 7.94万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555152/
关键词：
wind measurement wide area measurement gust factor local wind wind tunnel test 強風分布局地風

项目摘要

A database of strong-wind information was constructed using the records from 122 sites of a wind measurement system operating in the Kyushu area called NeWMeK. Some features of the gust factor distribution concerned with strong winds in the Kyushu area are as follows :1. The gust factors at every site were cataloged as the database of wind speed-increase information from the mean wind velocity in each area using the NeWMeK records from 1995 - 2000. The database was classified into wind records related to typhoons and non-typhoon periods, and grouped into sixteen wind directions. Gust factors in passing typhoons were higher in the southerly wind direction in the southern part of Kyushu, and in the easterly wind direction in mid-Kyushu. Gust factors during non-typhoon periods were higher in the southerly wind direction throughout Kyushu.2. At some sites, gust factors exceeded 2.5. High maximum instantaneous wind speeds were recognized at such sites even when the mean wind speeds were low.3. We could improve the correlation between wind tunnel test results and the measurements at the high gust factor sites by tuning the temperature distributions in the wind tunnel tests.4. However, it was difficult to equate both sets of results in areas where channels and valleys were intricately located.5. Observations of the strong-wind damage rate of housing show a marked increase in the damage caused by wind gusts of over 30 m/s. The relationship between the maximum instantaneous wind speed and the damage rate needs to be investigated further in order to mitigate the effects of strong wind damage.

使用来自九州地区的风风测量系统的122个站点的记录构建了一个强风信息的数据库。与九州地区强风有关的阵阵因子分布的某些特征如下：1。使用1995年至2000年的Newmek记录，将每个站点的阵风因子分类为来自每个区域的平均风速的风速信息数据库。将数据库归类为与台风和非蒂斯泛段相关的风记录，并将其分组为16风。在九州南部的南部风向以及中部的中风方向上，经过台风的阵风因素较高。在整个Kyushu的南风方向上，在非元中期期间的阵风因子较高。2。在某些地点，阵阵因素超过2.5。即使平均风速较低，也可以在此类地点识别高最大瞬时风速。3。我们可以通过调整风洞测试中的温度分布4。但是，很难在通道和山谷错综复杂的区域中等同于两组结果。5。对住房的强损伤率的观察表明，风阵造成的损害显着增加，超过30 m/s。为了减轻强风损伤的影响，需要进一步研究最大瞬时风速与伤害率之间的关系。