Design and Analysis of Composite Foundation for High-rise Buildings

Abstract

A composite foundation combines several types of foundation to support a single superstructure. Thus, this type of foundation should be carefully designed considering the stress in the boundary section caused by the difference in the deformation behaviors of each foundation type. This paper shows two design cases of composite foundations for high-rise buildings. These two foundations were designed by considering the effect of deformation on the results of a static FEM analysis. The slab settlement was measured upon completion of construction. It was confirmed that composite foundations deform within a presupposed range.