A5055352839- Seismic Performance and Analysis
- Structural Engineering and Vibration Analysis
- Structural Behavior of Reinforced Concrete
- Structural Load-Bearing Analysis
- Structural Health Monitoring Techniques
- Structural Response to Dynamic Loads
- Structural Analysis and Optimization
- Masonry and Concrete Structural Analysis
- Structural Analysis of Composite Materials
- Vibration Control and Rheological Fluids
- Elasticity and Material Modeling
- Probabilistic and Robust Engineering Design
- Wind and Air Flow Studies
- Concrete Corrosion and Durability
- Civil and Structural Engineering Research
- Structural mechanics and materials
- Seismic and Structural Analysis of Tall Buildings
- Polymer Nanocomposites and Properties
- Geotechnical Engineering and Underground Structures
- Infrastructure Maintenance and Monitoring
- Building Energy and Comfort Optimization
- Contact Mechanics and Variational Inequalities
- Advanced Fiber Optic Sensors
- Innovations in Concrete and Construction Materials
- Railway Engineering and Dynamics
Schüßler-Plan (Germany)
2024
Marche Polytechnic University
2014-2023
Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna "Bruno Ubertini"
2021-2023
Bambino Gesù Children's Hospital
2022
Imperial College London
2016
Università di Camerino
2006
The University of Queensland
2006
Chang'an University
2006
University of Sheffield
2006
SUMMARY The paper illustrates a probabilistic methodology for assessing the vulnerability of existing reinforced concrete (RC) buildings with limited ductility capacity retrofitted by means dissipative braces. aim is to highlight most important parameters controlling these coupled systems and specific aspects concerning response uncertainties. proposed based on use local engineering demand monitoring seismic development component system fragility curves before after retrofit. In first part...
The seismic performance of existing RC frame buildings seismically retrofitted by base isolation is examined. Two different types systems are considered, i.e.: rubber-based and friction-based systems, respectively. levels examined, namely: Global collapse prevention Usability preventing damage. Seismic assessed multi-stripe nonlinear time-history analysis, considering earthquake intensity with return period ranging from 10 to 100000 years. Results point out that works effectively in limiting...
SUMMARY The paper aims at evaluating the influence of damper properties on probabilistic seismic response structural systems equipped with nonlinear viscous dampers. For this purpose, a linear single‐degree‐of‐freedom system an added or is considered, and statistics are evaluated for set natural records describing ground motion uncertainty. A dimensional analysis problem carried out first to identify minimum characteristic parameters controlling response. An extensive parametric study then...
Summary This paper analyzes the influence of damper properties on probabilistic seismic performance building frames equipped with viscous dampers. In particular, a methodology is employed to evaluate nonlinearity, measured by exponent, structural and nonstructural components frames, as described response hazard curves relevant engineering demand parameters. The variations due changes in nonlinearity level are evaluated highlighted considering two realistic design scenarios comparing results...
This paper reports on results of nonlinear analyses performed within the RINTC project an RC building isolated with different systems (High Damping Rubber Bearings, High Bearings and Flat Sliding Friction Pendulum System) designed according to Italian design code. The seismic response has been evaluated under input levels two sites hazard by considering Limit States: Global Collapse Usability-Preventing Damage. influence stoppers modelling uncertainties is also evaluated. Results permit...
Summary High‐damping natural rubber (HDNR) bearings are extensively employed for seismic isolation of structures because their low horizontal stiffness and high damping capacity. Filler is used in HDNR formulations to increase the dissipative capacity, it induces also a stress softening behaviour, known as Mullins effect. In this paper, wide experimental campaign carried out on large number virgin samples better investigate some aspects such direction dependence recovery properties,...
This paper describes the multivariate statistical model of structure-related modelling uncertainty, developed with reference to reinforced concrete, masonry, steel, and seismically isolated buildings, within framework RINTC project. The variability material properties as well uncertainty associated adopted response models. Specific aspects each structural typology are also discussed, a focus on dependence random variables in model. Finally, efficient sampling procedure adopted. Effect for...
A 142-m, three-span continuous footbridge over the Esino River (Italy) is considered as a case study to illustrate number of challenging aspects in its static and dynamic design. The adoption an optimized steel deck with variable cross section together use external prestressing tendons central span allows substantial reduction structural weights. resulting requires proper model for assessment behavior up ultimate limit state well attention vibration control under pedestrian loading at...
The flexural strength of externally prestressed beams depends on the tendon stress at failure. If is free to slip deviators its will depend global deformation whole structure. Thus failure, and consequently, cannot be evaluated by a local analysis critical sections, but nonlinear beam-tendon structural system required. In past, simplified formulas were proposed calculate increment failure avoiding need for entire Some these have been adopted as code recommendations. approaches however do not...
This paper investigates the seismic design of fluid viscous dampers connecting adjacent structural systems. A simplified strategy is proposed, which relies on a linearized reduced order model coupled system. stochastic linearization technique adopted with aim extending method to nonlinear dampers. The effectiveness and coupling are assessed via numerical analysis two buildings shear-type behaviour connected by linear or subjected Gaussian base acceleration. Different locations analysed....