登录
注册
E-alert
登录
注册
E-alert
RESEARCH ON THE WIND-LOAD SHAPE COEFFICIENT OF THE CRESCENT-SHAPED ROOF
-
摘要: 基于ANSYS Fluent软件平台采用SST k-ω湍流模型对月牙形悬挑屋面风荷载分布规律进行了数值模拟分析。为验证数值模拟的可靠性，将模拟结果与类似风洞试验结果进行对比分析，结果表明数值模拟可靠性较高。通过建立多个模型，研究通风率、屋面倾角、最大悬挑长度、风向角等因素对屋面体型系数的影响，得出月牙形悬挑屋面的风荷载分布规律。提出了月牙形屋面的风荷载体型系数的取值建议。Abstract: Based on ANSYS Fluent software platform,the SST k-w turbulence model was used to calculate and analyze the wind-load shape coefficient of the crescent-shaped cantilevered roof. In order to verify the reliability of numerical simulation, the simulation results were compared with the results of similar wind tunnel tests. The results showed that the numerical simulation had high reliability. Many models were established to research the influences of the ventilation rate, the roof inclination, the maximum cantilever length and the wind angle on the wind-load shape coefficient of the roof. The regularities of wind load distribution on the crescent-shaped cantilevered roof were obtained. The wind load shape coefficient of the crescent-shaped cantilevered roof was proposed.
-
中华人民共和国住房和城乡建设部.建筑结构荷载规范:GB 50009-2012[S]. 北京:中国建筑工业出版社,2012. 聂少锋,陶莹,曹正霖,等. 长悬挑圆弧形大跨屋盖结构风荷载特性研究[J].工业建筑,2016,46(10):136-142. 罗尧治,丁慧. 波纹表面月牙形悬挑屋盖风荷载特性[J].浙江大学学报(工学版),2013,47(6):1063-1071. 陈水福,张学安,金建明. 体育场主看台悬挑屋盖表面风压的数值模拟[J]. 工程力学,2007,24(6):98-103. 日本建筑学会. 建筑风荷载流体计算指南[M]. 北京:中国建筑工业出版社,2010. WILCOX D C. Turbylence Model for CFD[M]. California:DCW Industries Inc.,1993. MENTER F R. Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications[J]. AIAA Journal,1994,32(8):269-289. MENTER F R,KUNTZ M,LANGTRY R. Ten Years of Industrial Experience with the SST Turbulence Model[J]. Turbelence,Heat and Mass Transfer,2003(4):625-632. 周宇,钱炜祺,邓有奇,等. k-ω SST两方程湍流模型中参数影响的初步分析[J].空气动力学学报,2010,28(2):213-217. 林斌. 悬挑屋盖的风荷载模拟与气动控制研究[D].哈尔滨:哈尔滨工业大学,2010. 邵帅. 弧形平面体育场悬挑屋盖风荷载特性及干扰效应研究[D].哈尔滨:哈尔滨工业大学,2013. 沈国辉,孙炳楠,楼文娟. 体育场看台挑篷的风荷载及干扰效应分析[J]. 空气动力学学报,2005,23(4):490-495. -
点击查看大图
计量
- 文章访问数: 127
- HTML全文浏览量: 12
- PDF下载量: 4
- 被引次数: 0
下载:
