钦州市50年重现期基本风压及分布规律分析
Analysis of 50-year return period reference wind pressure and distribution pattern in Qinzhou
李斌喜 1王芷潆 1苏志 2罗红磊 2何斌 1韦美闹 1郑永泉1
作者信息
- 1. 钦州市气象局,广西 钦州 535000
- 2. 广西壮族自治区气象灾害防御技术中心,南宁 530022
- 折叠
摘要
利用钦州市辖区19个气象观测站建站以来至2022年的风速资料,采用数理统计等方法推算重现期为50a的最大风速,研究分析基本风压值及其分布规律.结果表明,钦州市基本风速为11.7～40.4 m·s-1,基本风压在0.08 k～0.97 kN·m-2之间,二者总体上均呈沿海向内陆逐渐减小的分布特征.钦州国家基本气象站的基本风压计算值为0.51 kN·m-2,与《建筑结构荷载规范》推荐值的差值最小,为0.04 kN·m-2,可为当地提供更精细的基本风压参考.
Abstract
Using the wind speed data of 19 meteorological observation stations in Qinzhou City since the establishment of the station until 2022,the maximum wind speed with a 50-year return period was projected and then the value of the reference wind pressure was determined.The results show that the basic wind speeds at each station range from 11.7 m·s-1 to 40.4 m·s-1,and the reference wind pressures range from 0.08 kN·m-2 to 0.97 kN·m-2,both of which show a gradual decreasing distribution from the coast to the inland.The calculated value of the reference wind pressure at the Qinzhou National Meteorological Station is 0.51 kN·m-2,and the difference with the recommended value of the Load code for the design of building structures is the smallest,which is 0.04 kN·m-2,which can provide a finer reference of the reference wind pressure for the present Qinzhou area.
关键词
最大风速/基本风压/钦州Key words
maximum wind speed/reference wind pressure/Qinzhou引用本文复制引用
基金项目
广西壮族自治区气象科研计划(桂气科2022ZL06)
出版年
2024
国家科技期刊平台
NSTL
万方数据