BIAXIAL BEHAVIOUR OF RC COLUMNS BUILT WITH PLAIN REBARS

A considerable number of existing reinforced concrete (RC) buildings structures were designed before 80s, when the reinforcing bars had plain surface and prior to the enforcement of the modern seismic-oriented design codes. This paper presents the results of a recent experimental campaign performed on four full-scale RC columns representative of existing structures with plain reinforcing bars. The columns were tested under constant axial load and uniaxial or biaxial lateral cyclic loading unt...

A Lei de Amara: Habitação e Digitalização

Soilgeosynthetic interaction

Abstract Soilgeosynthetic interaction mechanisms and soilgeosynthetic interface resistance are referred to in this chapter. Factors influencing soilgeosynthetic interaction, such as soil particle size, confinement stress, soil density, geosynthetic structure, soil type or alternative fill material, and cyclic loading, are analysed. The main relevance of soil particle size when the reinforcement is a geogrid is put forward. The influence of the soil moisture c...

New Technologies for Earth Construction: 3D Printing, a Reality or a Mirage?

The construction industry is on the brink of a revolutionary transformation with the advent of new technologies designed to address the pressing demands of sustainability, efficiency, and affordability. Among these innovations, 3D printing using earth materials stands out as a particularly intriguing development. This technique, which leverages locally sourced soil, proposes a paradigm shift from traditional construction methods. However, as with any emerging technology, it prompts a critical...