Lorenzo Hofer

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Kim Knibbe

University of Groningen

Szabolcs Varga

Hungarian Academy of Sciences

Michaela Valente

Università degli Studi "La Sapienza" di Roma

Yllan de Mattos

Universidade Federal Rural do Rio de Janeiro

Evyatar Marienberg

University of North Carolina at Chapel Hill

Mihaela Popa-Wyatt

The University of Manchester

serena di nepi

Sapienza University of Roma

Maria Pia Donato

Centre National de la Recherche Scientifique / French National Centre for Scientific Research

Sylvio Hermann De Franceschi

Ecole Pratique des Hautes Etudes

Leandro Martínez Peñas

Rey Juan Carlos University

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Papers by Lorenzo Hofer

Seismic Reliability Assessment of an Open-Spandrel Reinforced Concrete Arch Bridge

Lecture Notes in Civil Engineering, 2021

Seismic behavior of precast reinforced concrete column-to-foundation grouted duct connections

Bulletin of Earthquake Engineering, 2021

The paper shows the results of an experimental campaign aimed at investigating the cyclic behavio... more The paper shows the results of an experimental campaign aimed at investigating the cyclic behavior of a column-to-foundation joint for precast concrete elements. The tested connection is realized adopting corrugated steel ducts embedded into the foundation, in which column protruding rebars are anchored by grouting high performance mortar. The experimental program consists in testing six full-scale reinforced concrete square-section columns subject to quasi-static cyclic lateral load with a constant axial compression. A preliminary series of bond tests was carried out to define some experimental variables, i.e., longitudinal rebar diameter and anchorage length. Results of the precast joints are compared with those of two reference cast-in-place specimens with the same geometric characteristics, showing similar hysteretic behavior, energy dissipation and ductility values. Lastly, the plastic hinge height is computed for all the specimens based on experimental concrete strains, and co...

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Reliability analysis of carbonation for recycled aggregate concretes

IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management

Durability represents a crucial issue in the evaluation of safety and serviceability for reinforc... more Durability represents a crucial issue in the evaluation of safety and serviceability for reinforced concrete structures. Carbonation-induced corrosion is a complex process, which involves several phenomena with different nature at the micro-scale level. Many studies have already focused on carbonation-induced corrosion of natural aggregate concrete (NAC), leading to several prediction models to estimate carbonation depth. Less research is devoted instead on recycled aggregate concrete (RAC), about which limited experimental works analyzed carbonation coefficient in accelerated tests. This work presents a reliability-based analysis of carbonation resistance of RACs, applied on experimental carbonation coefficients derived from literature, and on the full probabilistic method prosed in fib Bulletin 34.

Preliminary macroseismic survey of the 2016 Amatrice seismic sequence

Annals of Geophysics

After the recent destructive L’Aquila 2009 and Emilia-Romagna 2012 earthquakes, a sudden Mw 6.0 s... more After the recent destructive L’Aquila 2009 and Emilia-Romagna 2012 earthquakes, a sudden Mw 6.0 seismic event hit Central Italy on August 24, 2016. A low population density characterizes the area but, due to its nighttime occurrence, about 300 victims were registered. This work presents the first preliminary results of a macroseismic survey conducted by two teams of the University of Padova in the territories that suffered major damages. Macroseismic intensities were assessed according to the European Macroseismic Scale (EMS98) for 180 sites.

Repair of severely damaged RC columns through FRCM composites

Construction and Building Materials

Confinement of reinforced concrete columns with glass fiber reinforced cementitious matrix jackets

Engineering Structures

Resilience assessment framework for critical infrastructure in a multi-hazard environment: Case study on transport assets

Science of The Total Environment

The exposure of critical infrastructure to natural and human-induced hazards has severe consequen... more The exposure of critical infrastructure to natural and human-induced hazards has severe consequences on world economies and societies. Therefore, resilience assessment of infrastructure assets to extreme events and sequences of diverse hazards is of paramount importance for maintaining their functionality. Yet, the resilience assessment commonly assumes single hazards and ignores alternative approaches and decisions in the restoration strategy. It has now been established that infrastructure owners and operators consider different factors in their restoration strategies depending on the available resources and their priorities, the importance of the asset and the level of damage. Currently, no integrated framework that accounts for the nature and sequence

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Risk-based catastrophe bond design for a spatially distributed portfolio

Structural Safety

Risk-based CAT bond pricing considering parameter uncertainties

Sustainable and Resilient Infrastructure

Center and Characteristic Seismic Reliability as new indexes for accounting uncertainties in seismic reliability analysis

Soil Dynamics and Earthquake Engineering

Exterior RC Beam-Column Joints Made with Recycled Concrete: Experimental Behavior Under Lateral Cyclic Reversed Loading

Lecture Notes in Civil Engineering

A semi-analytical formulation for accounting uncertainties of hazard parameters in structural seismic reliability analysis

Engineering Structures

Seismic damage survey and empirical fragility curves for churches after the August 24, 2016 Central Italy earthquake

Soil Dynamics and Earthquake Engineering

Reliability-Based Analysis of Recycled Aggregate Concrete under Carbonation

Advances in Civil Engineering

Durability represents a crucial issue for evaluating safety and serviceability of reinforced conc... more Durability represents a crucial issue for evaluating safety and serviceability of reinforced concrete structures. Many studies have already focused on carbonation-induced corrosion of natural aggregate concrete (NAC) structures, leading to several prediction models to estimate carbonation depth. Less research is devoted instead on recycled aggregate concrete (RAC), about which limited experimental works exist aimed at assessing the carbonation coefficient in accelerated tests. Additionally, deteriorating processes are subject to uncertainty, when defining materials, geometry, and environmental actions during the service life of structures. This work presents a reliability-based analysis of carbonation resistance of RACs, using experimental carbonation coefficients derived from the literature, and applied in the full-probabilistic method prosed in fib Bulletin 34. Results demonstrate how aggregates replacement ratio and w/c ratio influence the reliability of RAC carbonation resistance.

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Profitability Analysis for Assessing the Optimal Seismic Retrofit Strategy of Industrial Productive Processes with Business-Interruption Consequences

Journal of Structural Engineering

A framework for assessing the seismic risk map of Italy and developing a sustainable risk reduction program

International Journal of Disaster Risk Reduction

Reversible ground motion-to-intensity conversion equations based on the EMS-98 scale

Engineering Structures

Repair of severely-damaged RC exterior beam-column joints with FRP and FRCM composites

Composite Structures

Sustainable management of demolition waste in post-quake recovery processes: The Italian experience

International Journal of Disaster Risk Reduction

Failure analysis of masonry arch bridges subject to local pier scour