摘要
论文结合工程实例对中美规范有关钢筋混凝土烟囱横风向风荷载的判断条件和计算方法进行比较,介绍了如何转换不同时距风速及不同平均重现期风速。建议取 0.518 VH作为中国烟囱规范判断可发生跨临界强风共振条件中临界风速的下限值。比较结论和建议可供工程设计人员设计钢筋混凝土烟囱参考。
This paper,in combination with engineering examples,compares the judgment conditions and calculation methods of wind load in the transverse direction of reinforced concrete chimneys in Chinese and American standards,and introduces how to convert wind speeds at different time intervals and with different average recurrence periods.It is recommended to take 0.518 VH as the lower limit value of the critical wind speed in the conditions where transcritical strong wind resonance can occur as determined by the Chinese chimney code.The comparative conclusions and suggestions can be used as references for engineering designers when designing reinforced concrete chimneys.
作者
汪浩
WANG Hao(China Energy International Group Co.,Ltd.,Beijing 100025,China)
出处
《工程质量》
2025年第8期43-48,共6页
Construction Quality
关键词
钢筋混凝土烟囱
横风向风荷载
设计风速
时距
平均重现期
reinforced concrete chimney
across-wind loads
design wind speed
averaging time
mean recurrence interval
