钢桁架筒结构基于刚度的设计方法——一种可持续的方法

桁架筒结构是高层建筑的一种高效的结构体系,该结构体系形式,自60年代末问世以来已广泛应用于大多数高层建筑中。提出基于刚度的设计方法,用以初步确定高层建筑桁架筒结构的构件尺寸。该方法适用于40～80层高的建筑物,并给出对应于代表性的设计荷载,使用材料最为经济的设计参数。就结构构件的不同几何配置对于设计经济性的影响进行了讨论,并对几何配置优化提出了建议。基于刚度的设计方法,只需较少迭代过程,非常适合于桁架筒结构的初步设计。对使用最少量的资源以满足构建建筑环境要求的设计,将具有推动和促进作用。

Stiffness-Based Design Methodology for Steel Braced Tube Structures:A Sustainable Approach

Braced tubes are efficient structural systems for tall buildings and have been continuously used for major tall buildings since their emergence in the late 1960s.This paper presents a stiffness-based design methodology for determining preliminary member sizes of braced tubes for tall buildings.The methodology is applied to a set of buildings ranging from 40to 80stories tall,and parameters for the most economic design in terms of material usage are generated for representative design loadings.The impact of d...