Abstract

In order to meet residents’ demands for high sound insulation and thermal insulation performance in buildings, functional materials, such as non-adhesive extruded plastic panels, are added to floor slabs to form the bottom-up “structural layer-functional layer-levelling layer”, common in assembled buildings. The non-adhesive leveling system has gradually become a new floor structure. However, the strength of the functional layer is insufficient. How to determine the minimum thickness of the leveling layer is not fully considered in the current building ground design codes of various countries, which makes the engineering application ahead of the codes and the structural damage problems occur frequently. This must be considered, in order to ensure the safety of the system. Based on the layered elastic half-space theory, the effects of functional layer thickness, leveling layer thickness and leveling layer material on the maximum tensile stress of the system are compared. The results of this research lay a solid foundation for the popularization and application of non-adhesive flat extruded plate systems.

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