Numerical simulation of single-span lightweight concrete sandwich slabs

摘要

It is the aim to develop light and efficient structures by dividing the force flow into compression and tension and assign these to the appropriate materials - pressure to concrete and tension to reinforcement. A first step to reach this goal is to numerically and experimentally investigate the bending load bearing capacity of sandwich elements made of modern high performance concretes (compressive zone), a lightweight core layer and steel or textile reinforcements (tensile zone). This paper presents a numerical, nonlinear analysis of a single-span sandwich element and indicates the potential of weight reduction based on the effective application of different concretes.