欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用计算流体动力学（CFD）软件CFX11.0,采用基于雷诺平均（RANS）方法的SST k-ω湍流模型对大跨度平屋盖风致破坏过程进行了二维数值模拟,研究风致连续破坏过程中屋盖开口附近风压系数的变化规律。结果表明,大跨度屋盖边缘等几何外形突变的部位是屋盖的薄弱环节,屋盖的风致破坏往往由这些部位开始。屋盖破坏过程中破坏开口边缘处风压发生较大变化,这是屋盖风致连续破坏的主要原因。此外,结构前后入口的大小也对破坏开口外表面风压系数分布规律有较大影响。本文定性地对屋盖结构风致破坏过程进行了数值模拟分析,可为大跨度屋盖局部抗风设计提供参考。
英文摘要：
Using the SST k-ω turbulence model,the numerical simulation of wind-induced continuous damage of a 2D long-span roof structure was conducted by CFX11.0 to investigate the external and internal wind pressure coefficients near the opening hole.It is demonstrated that the protuberant components,such as the eaves and the corners of a long-span roof,are the weakly-resisted wind locations and that the damage of the roof arises from these parts.During the damage processes,the wind pressure coefficients near the opening hole change dramatically,which is the main cause of the wind-induced continuous damage of the roof.In addition,the size of the entrance also influences wind pressure coefficients on the upper surface of the roof.This research provides a qualitative reference of wind-resistant design for the cladding loads of a long-span structure.
同期刊论文项目
同项目期刊论文
Zhi-wu Yu. Application of a fast stochastic calculation method on seismic analysis of isolated struc
An efficient and accurate method for calculating stochastic seismic response of non-proportionally d
Nonlinear Finite Element Analysis for Compressive Capacity of Interior Constrained Square Concrete-F
Possible existing seismic analysis errors of long span structures and bridges while utilizing multi-
Field measurement and analysis of train-induced vibration of "building-bridge integration" structure
Notes about calculation models for seismic analysis of long-span isolated structure under multi-poin
Multi-point seismic motions based on focal mechanism and considering local site multi-layer soil eff
Failure behavior and influencing parameters of cold-formed thin-walled steel members with rectangula
期刊信息
位置：