Work

Global Sensitivity‐Based Model Updating for Heritage Structures

Year: 2015

Type: article

Abstract: Sensitivity-based approaches to model updating have become widely used because of their capability to calibrate the model by taking into account the influence of updating parameters associated to different structural elements. Global sensitivity analysis (SA) allows model updating to be carried out even in the case of elevated uncertainty about the material characteristics. Architectural heritage structures deserve specific attention on account of their intrinsic geometrical complexity and heterogeneity. In this article, the concept of global SA is applied for the first time to complex monumental structures, and a comparative view is offered on more classical local sensitivity approaches. Different finite element (FE) calibration techniques—via global and local SA—were applied to the intriguing case of the church of S. Maria del Suffragio in L'Aquila (Italy), severely damaged by the 2009 earthquake. The FE updating was based on experimental data acquired by a dynamic monitoring system. Finally, calibration strategies were assessed through time history analyses by comparing the responses to the recorded seismic event.

Source: Computer-Aided Civil and Infrastructure Engineering

DOI: 10.1111/mice.12138

Authors: Giosuè Boscato, Salvatore Russo, Rosario Ceravolo, Luca Zanotti Fragonara

Institutions: Università Iuav di Venezia, Politecnico di Torino

Language: English

Topic: Structural Health Monitoring Techniques

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $5,230

Funder: Dipartimento della Protezione Civile, Presidenza del Consiglio dei Ministri