4. Contributo in atti di Convegno

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Abitare poeticamente Qui – Avverbi del fare

Si descrivono qui esempi recenti di partecipazione e innovazione sociale realizzati in luoghi del Sud Italia in cui un ente – beneficiario del finanziamento – è intermediario/facilitatore tra abitanti e amministrazioni. Si tratta di: un progetto che in due anni e mezzo ha realizzato un dimostratore di forme di verde (verticale e orizzontale) per un edificio di edilizia residenziale pubblica, e di un progetto in due frazioni vicine in zona agricola. In entrambi i casi si è intervenuti co...

Finite difference 3D model for structural health monitoring of single lap joints

This work is centered on the development of a 3D Finite Difference (FD) model to simulate Single Lap Joints (SLJs) excited by Lamb waves. An approach based on transient waves is proposed for assessing debonding area in aluminum SLJ typically used in aerospace industry. This approach is based on the interference of elastic waves generated by Piezo Wafer Active Sensors (PWAS) attached to an adhesively bonded thin joint and travelling through the adhesion area: destructive interference condition...

Typological classification of existing bridge piers interacting with river flow: the case study of bridges in the Matera provincial road network

Bridge piers are critical structural elements whose interaction with river flow may significantly influence hydraulic behavior and structural integrity. This is due to the fact that piers geometry and their alignment can induce flow deviation, turbulence, and general or local scour. This paper presents the first results of statistical typological study conducted on bridge piers across Matera province road network (Basilicata, Southern Italy), collected on inspections of a total of 247 bridge...

An overview of different design and verification techniques of half-joints: application to a case study

Existing concrete bridges with half-joints, also called Gerber saddles, represent a large part of the bridges still in service today, very often affected by pronounced degradation, due to the lack of an adequate maintenance. Therefore, in order to correctly predict their vertical load capacity, it is necessary to know the methods adopted in the past for their design and assessment. This paper aims to study several methods related to the half-joints. At first, an overview of different methods...

SAFOTEB database for knowledge of material strengths of existing Italian prestressed concrete bridges

This paper presents and statistically analyzes the material strengths collected on a sample of Existing Italian Prestressed Concrete Bridges (PCBs). The study describes the data collection process, shows the statistical results, and validates the assumed distributions (Normal for steel, Log-Normal for concrete) by using goodness-of-fit tests. The database is a valuable tool for researchers and practitioners, as it allows them to enhance the knowledge of materials used for bridges construction...

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