Here presented are efficient methods corresponding to two demand patterns: the linear trend and the parabolical trend. 就线性函数和抛物线型函数,提供了寻求最优价格和生产策略的简单方法;
This papaer presents a new structure,which is compound large span structures of Γ frame parabolical three hinged arch space truss. 大跨度空间结构被广泛应用于实际工程中,风荷载的作用效应是大跨结构设计的重要内容。