摘要
桥梁风荷载很复杂 ,在桥梁初步设计阶段没有必要进行精确地抖振分析。借助随机振动理论 ,考虑到脉动风荷载的背景和共振分量各自特点 ,在平均风荷载中引入系数计入背景分量。将风荷载简单化 ,以便在简单的设计或初步设计阶段计算桥梁风荷载。
It is impossible and costly to carry out detailed buffet analysis in the bridge conceptual phase and many short span bridge designs because the wind load on bridge is complicated. Considering the background section and resonant section of the wind load, the background section is included in the mean wind load, which could simplify the wind load analysis on bridges. Therefore, the designers could analyze the wind load easily in bridge conceptual phase and short span bridges' design.
出处
《桥梁建设》
EI
CSCD
北大核心
2002年第4期28-30,42,共4页
Bridge Construction
关键词
侧向风荷载
共振
抖振响应
桥梁设计
计算方法
wind load
resonance
resonant response
bridge design
computation method
