The in-plainultimate load carrying capacity of concrete filled steel tubular(CFST) laced columns compressed eccentrically is calculated based on design guidelines for CFST structure.
应用钢管混凝土结构设计规程，对钢管混凝土格构柱偏心受压试件进行面内整体承载力计算。
2
From 0 load till about 0.8 times the ultimate load bearing capacity, the steel tube longitudinal strain distribution along the depth of cross-section obeys the plain section assumption.