ISO 4354:2009 风对构筑物的影响

标准编号：ISO 4354:2009

中文名称：风对构筑物的影响

英文名称：Wind actions on structures

发布日期：2009-06

标准范围

ISO 4354:2008描述了风对结构的作用，并规定了用于设计建筑物、塔、烟囱、桥梁和其他结构及其组件和附件的风荷载特征值的计算方法。这些荷载适合与ISO 2394和其他有关风荷载的国际标准结合使用。特别是，ISO 4354:2008促进了峰值风速和平均风速方法之间的转换，涵盖了三种主要风暴类型:天气风、雷暴和热带气旋（飓风和台风）。ISO 4354:2008提供了通过确定简单形状和风向效应结构的设计压力或正交顺风和横风力和力矩，以及通过风洞或计算确定压力，分析确定风荷载的基本方法，具有复杂形状和风向效应的结构的力和力矩，导致力和力矩的复杂组合。给出了两种分析确定设计风荷载的方法，一种基于峰值速度，另一种基于平均速度。

ISO 4354:2008 describes the actions of wind on structures and specifies methods of calculating characteristic values of wind loads for use in designing buildings, towers, chimneys, bridges and other structures, as well as their components and appendages. The loads are suitable for use in conjunction with ISO 2394 and other International Standards concerned with wind loads. In particular, ISO 4354:2008 facilitates the conversion between peak- and mean-wind-speed methodologies and covers the three main storm types, synoptic winds, thunderstorms and tropical cyclones (hurricanes and typhoons).ISO 4354:2008 provides the basic methods from which to determine wind loading analytically through the determination of design pressures or orthogonal along-wind and cross-wind forces and moments for structures of simple shape and wind directionality effects, and through wind tunnel or computational determinations of pressure, forces and moments for structures with complex shapes and wind directionality effects resulting in complex combinations of forces and moments.Two methods of analytical determination of design wind loads are given, one based on a peak velocity and the other on a mean velocity.

标准预览图