Design and Construction Aspects of Steel Fiber-Reinforced Concrete Elevated Slabs

Abstract

This paper discusses how applications of slabs supported on piles are quite common for areas where soil- structure interaction may create differential settlement or long term tolerance issues. An application for the use of steel fiber reinforced slabs that are continuous and supported on piles is also discussed in this paper. The experience and design methodology for slabs on piles is further extended to floor slabs of multi-story buildings, where a high dosage of steel fibers is used as the sole method of reinforcement. Suspended ground slabs are generally subjected to high concentrated point loading intensities as well as high uniformly distributed loadings and wheel loads. The span to depth ratios of the SFRSS is between 8 and 20 and depends on the loading intensity and the pile/column capacity. Standard procedures for obtaining material properties and finite element models for structural analysis of the slabs are discussed in the paper and methods of construction, curing, and full scale testing of slabs are also presented.