Infrastructures (viaducts, bridges, tunnels, railways, and roads) are fundamental to allow people goods move around a country. In particular, in Italy, due its orographic morphological complexity, the ratio between number of viaducts national geographical extension is largest Europe. This kind structure constitutes weakness road networks, especially those over 50 years old, among these, prestre...

40 Shape memory alloys (SMAs) are a class of smart materials that recover apparent plastic 41 deformation (~6-8% strain) after heating, thus “remembering” the original shape. This 42 shape memory effect (SME) can be exploited for self post-tensioning applications and 43 NiTi-based SMAs are promising as SME is possible at elevated temperatures amenable 44 to practical application compared to con...

The estimate of internal prestressing in concrete beams is essential for the assessment their structural reliability. Many scholars have tackled multiple and diverse methods to measurable effects prestressing. Among them, many experimented with dynamics-based techniques; however, these clash theoretical independence natural frequencies forces internally prestressed beams. This paper examines fe...

Prestressed Concrete Wire and Strand (PC) strands are the most used materials to introduce prestress in a Pre-Stressed Concrete (PSC) structure. However, it is difficult to evaluate the final prestress force of the PC strand after prestressing or its residual prestress force after completion of the structure on site. This impossibility to assess eventual loss of prestress of the PC strand has r...