宁波大学学报（理工版）
寧波大學學報（理工版）
저파대학학보（리공판）
JOURNAL OF NINGBO UNIVERSITY(NSEE)
2014年
2期
88-91
,共4页
强台风%高耸结构%脉动风%风场模拟%自回归法
彊檯風%高聳結構%脈動風%風場模擬%自迴歸法
강태풍%고용결구%맥동풍%풍장모의%자회귀법
strong typhoon%high-rise structure%fluctuating wind%wind field simulation%auto-regressive method
台风风场模拟是研究各类高耸构筑物、大跨度桥梁和大型空间结构风致破坏机理的重要基础。基于不随高度变化的台风功率谱、自回归法和竖向相关性简化表达式模拟了沿海地区的强台风风场模型；得出了给定平均风速条件下，不同高度处的脉动风风速时程曲线。结果表明，模拟谱的功率谱密度与目标谱较为一致，模拟风速可用于结构的风振响应分析。
檯風風場模擬是研究各類高聳構築物、大跨度橋樑和大型空間結構風緻破壞機理的重要基礎。基于不隨高度變化的檯風功率譜、自迴歸法和豎嚮相關性簡化錶達式模擬瞭沿海地區的彊檯風風場模型；得齣瞭給定平均風速條件下，不同高度處的脈動風風速時程麯線。結果錶明，模擬譜的功率譜密度與目標譜較為一緻，模擬風速可用于結構的風振響應分析。
태풍풍장모의시연구각류고용구축물、대과도교량화대형공간결구풍치파배궤리적중요기출。기우불수고도변화적태풍공솔보、자회귀법화수향상관성간화표체식모의료연해지구적강태풍풍장모형；득출료급정평균풍속조건하，불동고도처적맥동풍풍속시정곡선。결과표명，모의보적공솔보밀도여목표보교위일치，모의풍속가용우결구적풍진향응분석。
Simulation of typhoon is an important pre-step for the wind-induced failure analysis for a variety of large-size constructions such as tall buildings, large-span bridges, and large-space structures. A power spectrum density (PSD) model of typhoon with constant altitude, the auto-regressive method and a simplified expression of vertical correlation are concurrently simulated and employed to model the strong typhoon wind field in coastal area. Giving an average wind speed, the fluctuating wind speed at different heights is simulated. Results show that the PSD of the simulated spectrum is well in agreement with that of the target spectrum. The proposed simulated wind speed is expected to use for predicting the structural wind-induced responses.
