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Development of a reasonable wind load evaluation procedure with combining the typhoon simulation technique and wind force and pressure database.

结合台风模拟技术和风力气压数据库，制定合理的风荷载评估程序。

基本信息

批准号：
15360302
负责人：
TAMURA Yukio
金额：
$ 9.73万
依托单位：
TOKYO POLYTECHNIC UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

项目摘要

To achieve the reasonable wind load design, wide range problems from the design wind speeds to the combination of wind loads on the buildings were taken up.To improve the accuracy of the design wind speeds, a new typhoon model was proposed. It succeeded in the reproduction of not only the statistical mean and standard deviations but also the correlation by using the proper orthogonal decomposition of the main typhoon pressure field parameters. In the evaluation of the wind speeds at the ground level height, the hybrid method with the meteorological observation and model data was constructed. For evaluating the directional aerodynamic ground roughness, the relations between the gust factor and the areal density of buildings in urban areas were evaluated. By these techniques, evaluation of directional design winds became possible.The wind forces and wind pressures were deeply depends on geometries of buildings and surrounding conditions. Strictly speaking, the wind tunnel experiment is required to every case to evaluate the wind pressures on buildings. Then, the simultaneous multi-channel wind pressure measurements to a lot of geometries of building models were executed, and a data base was built.By using this wind pressure data and numerical simulations of the material stress of buildings were executed. The reasonable wind design technique was proposed that how influenced the stress of the material by the combination of wind loadings based on the wind response calculation of a huge case.The techniques constructed with this research will be refined more by the numeric calculation ability of a further improving computer abilities such as processing speeds, the memory capacity and the data access speed, etc. in the future. The procedure proposed here will lead the mitigation of the wind-induced disasters of buildings and reasonable wind load design of structures.

为了实现合理的风荷载设计，研究了从设计风速到建筑风荷载组合的广泛问题。为了提高设计风速的精度，提出了一种新的台风模型。通过对台风气压场主要参数进行适当的正交分解，不仅成功地再现了统计平均值和标准差，而且还再现了相关系数。在地面高度风速评价中，构建了气象观测资料与模式资料相结合的综合评价方法。为了评价空气动力地面的方向性粗糙度，研究了城市建筑面密度与阵风因子的关系。通过这些技术，定向设计风的评估成为可能。风力和风压在很大程度上取决于建筑物的几何形状和周围环境。严格地说，每一种情况下都需要风洞试验来评估建筑物的风压。然后，对多种几何形状的建筑模型进行多通道风压同步测量，并建立数据库。利用该方法对建筑物的风压数据和材料应力进行了数值模拟。通过对某大型箱体的风响应计算，提出了风荷载组合对材料应力影响的合理风设计技术。未来，随着计算机处理速度、存储容量和数据访问速度等能力的进一步提高，数值计算能力将进一步完善本研究构建的技术。本文所提出的程序对减轻建筑物的风害，合理设计结构的风荷载具有指导意义。

项目成果

期刊论文数量（195）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

田村幸雄: "2003年8月8日熊谷に発生した竜巻被害および韓国における台風0314による被害調査"第50回風に関するシンポジウム. (2003)

田村幸男：“2003 年 8 月 8 日发生在熊谷的龙卷风损害和韩国 0314 号台风造成的损害调查”第 50 届风研讨会（2003 年）。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

System identification of structure for wind-induced response.

风致响应结构的系统识别。

DOI：
发表时间：
2004
期刊：
5^<th> International Colloquium on Bluff Body Aerodynamics and Application
影响因子：
0
作者：
Giuseppe Thadeu Freitas de Abreu;Takashi Uefuji;Ryuji Kohno;Teruo IWASE;A.Yoshida
通讯作者：
A.Yoshida

ドップラーソーダを用いた地表面粗度の異なる地点の風速の鉛直分布に関する研究その23 地表面粗度による風速の低減に関する比較

利用多普勒苏打研究不同地表粗糙度点处风速的垂直分布第23部分地表粗糙度引起的风速降低比较