人民长江
人民長江
인민장강
Yangtze River
2015年
20期
84-87
,共4页
带裙房建筑结构%数值模拟%体形系数%CFD
帶裙房建築結構%數值模擬%體形繫數%CFD
대군방건축결구%수치모의%체형계수%CFD
building structure with podium%numerical simulation%shape coefficient%CFD
针对目前《建筑结构荷载规范》无法给出体形复杂结构表面风压分布的缺点,基于计算流体力学与大气边界层理论,利用CFD数值模技术对带裙房的建筑结构表面风压分布进行了分析。研究结果表明,数值模拟得到的建筑结构迎风面体形系数与规范数据吻合较好;只有建筑物的迎风面处于正压区域,其余面均处于负压区。相关成果可为建筑物抗风设计提供可靠依据。
針對目前《建築結構荷載規範》無法給齣體形複雜結構錶麵風壓分佈的缺點,基于計算流體力學與大氣邊界層理論,利用CFD數值模技術對帶裙房的建築結構錶麵風壓分佈進行瞭分析。研究結果錶明,數值模擬得到的建築結構迎風麵體形繫數與規範數據吻閤較好;隻有建築物的迎風麵處于正壓區域,其餘麵均處于負壓區。相關成果可為建築物抗風設計提供可靠依據。
침대목전《건축결구하재규범》무법급출체형복잡결구표면풍압분포적결점,기우계산류체역학여대기변계층이론,이용CFD수치모기술대대군방적건축결구표면풍압분포진행료분석。연구결과표명,수치모의득도적건축결구영풍면체형계수여규범수거문합교호;지유건축물적영풍면처우정압구역,기여면균처우부압구。상관성과가위건축물항풍설계제공가고의거。
The current loading code for the design of building structures cannot provide the surface wind pressure distribution of complex building structures .On the basis of computational fluid dynamics and atmospheric boundary layer theory , the surface wind pressure distribution of buildings with podium was analyzed with CFD numerical simulation technology .The research results show that the shape coefficients of building windward side obtained from numerical simulation agree with the code data well , and only the windward side of the building is in positive pressure area while other sides are in negative pressure area .The research a-chievements can provide reliable basis for wind resistance design of buildings .