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View article: Extended modal superposition for forced damped vibrations of multi-cracked shear deformable beams
Extended modal superposition for forced damped vibrations of multi-cracked shear deformable beams Open
Shear deformable beams modelled in accordance with the first-order Timoshenko theory in presence of multiple cracks are the object of this study. Contrarily to the Euler–Bernoulli theory, forced vibrations of the latter multi-cracked beam …
View article: Closed-Form Exact Solution for Free Vibration Analysis of Symmetric Functionally Graded Beams
Closed-Form Exact Solution for Free Vibration Analysis of Symmetric Functionally Graded Beams Open
The dynamic stiffness method is developed to analyze the natural vibration characteristics of functionally graded beams, where material properties change continuously across the beam thickness following a symmetric law distribution. The go…
View article: Semi-probabilistic calibration of material partial safety factors for the capacity assessment of existing masonry structures
Semi-probabilistic calibration of material partial safety factors for the capacity assessment of existing masonry structures Open
A practical procedure is presented for the calibration of partial safety factors (PSF) related to material properties, with a focus on unreinforced masonry structures. The methodology addresses the propagation of material and model uncerta…
View article: An inelastic beam-like model for nonlinear dynamic analyses of multi-storey buildings
An inelastic beam-like model for nonlinear dynamic analyses of multi-storey buildings Open
This paper presents an equivalent non-uniform inelastic beam-like model for the evaluation of the nonlinear behaviour of multi-storey buildings subjected to earthquake loadings. The proposed beam can be used to model buildings with non-uni…
View article: Influence of damage on large displacement buckling analysis of beams
Influence of damage on large displacement buckling analysis of beams Open
In this study, the influence of concentrated damage on the stability of beams under static loads is investigated according to a co-rotational-based large displacement approach. Well-known benchmark beam-like structures have been considered…
View article: A semi-probabilistic approach for assessing material and model uncertainty in the out-of-plane response of URM structures
A semi-probabilistic approach for assessing material and model uncertainty in the out-of-plane response of URM structures Open
A procedure tailored for a practical calibration of partial safety factors (PSF) related to input material properties is presented. The methodology addresses the propagation of material and model uncertainty through a FORM-based calibratio…
View article: Application of Italian Guidelines for structural-foundational and seismic risk classification of bridges: the Fabre experience on a large bridge inventory
Application of Italian Guidelines for structural-foundational and seismic risk classification of bridges: the Fabre experience on a large bridge inventory Open
The recent issuance of Guidelines for the classification and management of risk, safety assessment, and monitoring of existing bridges has standardized the methodology for analyzing the safety and managing bridges at a national level. The …
View article: Numerical Simulation of the Response of an Unreinforced Brick-Masonry Cross Vault Subjected to Seismic Loading
Numerical Simulation of the Response of an Unreinforced Brick-Masonry Cross Vault Subjected to Seismic Loading Open
This paper presents the numerical evaluation of the seismic response of a masonry cross vault using the Discrete Macro-Element Method (DMEM). The case study corresponded to a full-scale unstrengthened cross vault that was experimentally in…
View article: Evaluation of the Response of a Masonry Cross Vault Subjected to Vertical Loading using the Discrete Macro-Element Method
Evaluation of the Response of a Masonry Cross Vault Subjected to Vertical Loading using the Discrete Macro-Element Method Open
This paper was focused on the application of an innovative modelling approach, known as the Discrete Macro-Element Method (DMEM), for simulating the experimental response of a ribbed masonry cross vault subjected to vertical loading.This n…
View article: Discrete Macro-Element structural assessment of a railway masonry arch bridge subjected to pier settlements
Discrete Macro-Element structural assessment of a railway masonry arch bridge subjected to pier settlements Open
Settlements in bridges can induce structural damage that can be limited and affect only the serviceability of the infrastructure or, in the worst scenario, can cause local or global failure. To assess the structural behaviour of masonry ar…
View article: The exact distributional model for free vibrations of shear-bending multi-cracked Timoshenko beams
The exact distributional model for free vibrations of shear-bending multi-cracked Timoshenko beams Open
The influence of shear deformation in the dynamics of beam-like problems is usually studied by means of a First order Shear Deformation Theory (FSDT) due to the original Timoshenko formulation. In comparison to higher order theories, the F…
View article: A discrete‐element approach accounting for P‐Delta effects
A discrete‐element approach accounting for P‐Delta effects Open
This paper presents a discrete macro‐element accounting for P‐Delta effects to describe the rocking response of masonry walls subjected to out‐of‐plane (OOP) loadings. Both constitutive and geometric nonlinearities are considered within th…
View article: NUMERICAL INVESTIGATION ON THE SEISMIC RESPONSE OF A MASONRY CROSS VAULT BASED ON THE DISCRETE MACRO-ELEMENT METHOD
NUMERICAL INVESTIGATION ON THE SEISMIC RESPONSE OF A MASONRY CROSS VAULT BASED ON THE DISCRETE MACRO-ELEMENT METHOD Open
This paper focuses on the application of an innovative numerical approach to assessing the nonlinear dynamic response of an unstrengthened masonry cross vault subjected to shaking table testing performed within a blind prediction context.T…
View article: OUT-OF-PLANE RESPONSE OF MASONRY CHURCH FACADES INCLUDING P-DELTA EFFECTS
OUT-OF-PLANE RESPONSE OF MASONRY CHURCH FACADES INCLUDING P-DELTA EFFECTS Open
Out-of-plane rocking mechanisms represent one of the major causes of damage and failure for unreinforced masonry buildings, monuments and churches leading to significant economic and social losses.Due to their slenderness, masonry walls su…
View article: INVESTIGATING THE SEISMIC RESPONSE OF URM WALLS WITH IRREGULAR OPENING LAYOUT THROUGH DIFFERENT MODELING APPROACHES
INVESTIGATING THE SEISMIC RESPONSE OF URM WALLS WITH IRREGULAR OPENING LAYOUT THROUGH DIFFERENT MODELING APPROACHES Open
The façade and internal walls of unreinforced masonry (URM) buildings often present an irregular opening layout, due to architectural reasons or modifications to the structure, which make the expected seismic damage pattern less predictabl…
View article: A Review of Simplified Numerical Beam-like Models of Multi-Storey Framed Buildings
A Review of Simplified Numerical Beam-like Models of Multi-Storey Framed Buildings Open
Modern computational techniques have greatly influenced the numerical analyses of structures, not only in terms of calculation speed, but also in terms of procedural approach. In particular, great importance has been given to structural mo…
View article: A macro‐model for describing the in‐plane seismic response of masonry‐infilled frames with sliding/flexible joints
A macro‐model for describing the in‐plane seismic response of masonry‐infilled frames with sliding/flexible joints Open
Masonry infill walls are among the most vulnerable components of reinforced concrete (RC) frame structures. Recently, some techniques for enhancing the performance of the infills have been proposed, aiming at improving both the global and …
View article: Seismic Vulnerability and Retrofitting Of RC Buildings Not Designed To Resist Earthquakes
Seismic Vulnerability and Retrofitting Of RC Buildings Not Designed To Resist Earthquakes Open
The assessment of the seismic vulnerability of existing non-ductile RC buildings, designed only for gravity
View article: AN EXPEDITIOUS PARAMETRIC APPROACH FOR CITY INFORMATION MODELING AND FINITE ELEMENT ANALYSIS
AN EXPEDITIOUS PARAMETRIC APPROACH FOR CITY INFORMATION MODELING AND FINITE ELEMENT ANALYSIS Open
The mitigation of seismic risk passes through the assessment of seismic hazard of urban fabrics on a given territory. Statistical methods and damage probability matrices are currently used to facilitate seismic safety knowledge and assessm…
View article: On the use of a mesoscale masonry pattern representation in discrete macro-element approach
On the use of a mesoscale masonry pattern representation in discrete macro-element approach Open
This paper presents numerical investigations using the mesoscale approach coupled with the discrete macro-element approach for masonry structures, i.e., each macro-element represents a single unit stone. At first, parametric analyses are p…