E. Garavaglia

Politecnico di Milano, DIpartimento di Ingegneria Civile e ambientale, Faculty Member

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Papers by E. Garavaglia

Probabilistic evaluation of concrete durability subject to accelerated decay by salt crystallization DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING

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Monte Carlo simulation for seismic analysis of a long span suspension bridge

by N. Basso, E. Garavaglia, and Franco Bontempi

Engineering Structures, 2014

ABSTRACT a b s t r a c t The seismic analysis of long-span cable suspended bridges is undoubtedly... more ABSTRACT a b s t r a c t The seismic analysis of long-span cable suspended bridges is undoubtedly a problem in structural anal-ysis that involves a high number of uncertain parameters. In this work, through a probabilistic approach (Monte Carlo simulation) seismic analysis is carried out able to take into account the variability of certain factors relating to the seismic input. Displacement time histories, necessary to define seismic scenarios, are built artificially based on the response spectrum of the site. The analysis is carried out using a 3D numerical model built using one-dimensional finite elements using ADINA software code. This model has been developed in conjunction with a purpose-built program in FORTRAN language to conduct the Monte Carlo simulations. The results expressed in terms of displacements and stresses are described by their average value and their variance.

IABMAS-ITALY

Comparison between two different probabilistic approaches in the modelling of the masonry wall deterioration

by E. Garavaglia and Luigia Binda

12th IBMeC, Madrid-Spain, 2000

During their service life, masonry structures subjected to an aggressive environment may suffer d... more During their service life, masonry structures subjected to an aggressive environment may suffer degradation according to the type of their component materials and the technique of construction. This can lead the structure to high states of damage even if not failures. The great randomness connected with the occurrence of critical attacks suggests approaching the deterioration process of masonries under a probabilistic point of view. Following this way, the deterioration process L(t) of the stone masonry of a full-scale physical model, has been carried out. It has been approached as: 1) L(t) time dependent stochastic process of the r.v. l. 2) L(t) time dependent stochastic process of the r.v. τ.

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The use of a credibility index in the life-cycle assessment of structures

Structure and Infrastructure Engineering, 2014

Structural response evaluation of two-blade bridge piers subjected to a localized deterioration

by E. Garavaglia, Franco Bontempi, and F. Bontempi

Bridge maintenance, safety, management, life-cycle performance and cost: proceedings of the third International Conference on Bridge Maintenance, Safety and Management, Porto, Portual, 16-19 July 2006, Jul 31, 2006

ABSTRACT: Two-blade bridge piers represent today an innovative solution to optimize the structura... more ABSTRACT: Two-blade bridge piers represent today an innovative solution to optimize the structural behavior of long viaducts subjected to seismic actions. In fact, a proper design of the structure provides a correct transmission of vertical loads to the foundation structures and the possibility to allow horizontal displacements without the use of kinematics mechanisms. Due to the particular configuration of the pier (a rigid box section in the bottom part and two flexible blades at the top connected with the viaduct deck), the structural ...

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lav 443.fragility curves

by Luigia Binda and E. Garavaglia

In view of preserving the historical heritage, the deterioration processes of masonry materials a... more In view of preserving the historical heritage, the deterioration processes of masonry materials and the long term damage of multiple leaf historic buildings is studied from an experimental and a numerical point of view. Durability tests and pseudocreep tests have been carried out and interpreted through probabilistic models for the service life prediction. The precocious recognition of structural critical states will allow to design repair and strengthening interventions and to prevent total or partial failure of the constructions.

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