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在桥梁风振响应整个过程中来看,计算过程中涉及到风洞试验和随机振动分析等复杂过程,不易为工程设计人员所掌握。结构等效静风荷载理论就是将脉动风的动力效应以与其等效的静力形式表达出来,使得结构在等效静风荷载的作用下结构控制点的最大响应和实际情况下的最大响应相等,其他点的响应与真实情况下相似。等效静风荷载成为联系风工程师和结构工程师的纽带,是结构抗风设计理论的核心问题。
In the whole course of the wind-induced response of the bridge, the complicated process such as wind tunnel test and random vibration analysis are involved in the calculation process, so it is not easy for engineering designers to master. The equivalent static wind load theory of structure is to express the dynamic effect of pulsating wind in its equivalent static form so that the maximum response of the structure control point under the equivalent static wind load is equal to the maximum response under the actual situation , The response of other points is similar to the real situation. Equivalent static wind load has become the link between wind engineer and structural engineer, which is the core issue of wind resistance design theory.