摘要
基于自主研发的钢结构设计软件USSCAD,利用C++语言与Object ARX技术开发风荷载拟合功能。该功能采用三次样条插值对沿XY方向延伸的曲面进行插值拟合;采用线性插值对沿Z方向延伸的曲面进行插值拟合,实现对风洞试验得到的风压数据进行处理。结果表明:风荷载拟合计算功能可方便快捷得到自由曲面网格结构所有节点的风压值,并将其转换成等效节点风荷载并完成结构计算。
By means of the C＋ ＋ and the ObjectARX, the function of the wind tunnel test data processing in the general steel structure design software USSCAD has been developed. The cubic spline interpolation was used to calculate the wind pressure for the extended surface along the XY direction, while the linear interpolation was adopted for the other one along the Z direction. It is revealed that the wind pressure values of all the nodes of the lattice shell structure with free form surfaces could be acquired by using this function, and converting of the equivalent wind load of nodes for structure calculation could also be achieved.
作者
颜书纬
杜新喜
程晓燕
林士凯
刘武
Yan Shuwei,Du Xinxi,Cheng Xiaoyan,Lin Shikai,Liu Wu(1.School of Civil Engineering, Wuhan University, Wuhan 430072, Hubei, Chin)
出处
《计算机应用与软件》
北大核心
2018年第8期133-136,共4页
Computer Applications and Software
基金
中央高校基本科研业务费专项资金项目(2042017gf0047)
关键词
自由曲面
风压
插值
拟合
Free form surface
Wind pressure
Interpolation
Fitting
