RECENT ADVANCES AND EXPERIMENTAL FINDINGS ON THE STRUCTURAL BEHAVIOUR OF AN INNOVATIVE DRY-ASSEMBLED PRECAST CONCRETE WALL SYSTEM
Dal Lago, B. Adjunct Professor, Politecnico di Milano
Ferrara, L. Department of Civil and Environmental Engineering, Politecnico di Milano, Italy
Dal Lago, A. President, DLC Consulting srl, Milan, Italy
Alitinform №4 (53) 2018 г. 34-46 p.
The paper presents the evolution of the research related to the structural behaviour of an innovative dry-assembled precast concrete wall system named Domus® performed over the last 10 years. This system is made with hollow bearing walls which can be fully prefabricated and assembled in-situ through dry joints. The wall element, named Master®, has been experimentally tested under simulated earthquake loadings as a bracing wall into a full-scale 3-storey precast building prototype with regard to its flexural performance within the framework of the Safecast (FP7-SME-2007-2 with GA 218417/2009) European research project. The preliminary results of a recent test programme concerning the mechanical characterisation of (a) the shear behaviour of a single wall modulus, which is peculiar due to the presence of the hollow cavities and of the discrete mechanical wall-to-wall (or foundation) vertical connections, and (b) the shear behaviour of mechanical wall-to-wall horizontal connections are also presented. This experimental programme has been carried out within the framework of a joint research between Politecnico di Milano and DLC Consulting-Milan aimed at the exploitation of a registered invention patent and has been partially funded by the programme “Brevetti+” (g.u. 179 of 02/08/2011).
precast structures, residential buildings, wall systems, experimental research, dry assemblage