Risk Resilience

First order visual scanning of the vulnerability of buildings

Development of fragility and vulnerability curves of structures, infrastructures and geotechnical systems

Seismic risk assessment of buildings, building aggregates of different typologies and critical facilities, like schools and hospitals, at urban, regional and national scale

Seismic risk of complex interacting components and systems

We offer tailored vulnerability and risk assessment for individual buildings, infrastructures (road networks, bridges, tunnels, pipelines), critical facilities (schools, hospitals), and geotechnical systems (slopes, embankments, quay walls) with different levels of accuracy, providing detailed insights into their structural seismic vulnerability, functionality, and safety.

The Research Unit of SDGEE has long experience in the empirical and analytical development of fragility curves for different hazards (earthquakes, landslides, liquefaction, tsunami) and other types of buildings (RC, masonry, and steel buildings), infrastructures, and geotechnical systems, considering site effects and Soil-Structure-Interaction. It has also developed unique methodologies and tools for the risk assessment of complex systems and networks, considering inter- and intra-dependencies among components of the same systems and between different interacting systems.

Fragility and Vulnerability

First order visual scanning of the vulnerability of buildings

Application in ios and Android according to FEMA and the Greek authorities

Development of fragility and vulnerability curves of structures, infrastructures and geotechnical systems

i) Buildings (43o Elementary schools - Safeschools)

ii) RC buildings exposed in slopes ( θ=30 degrees - Clay Soil)

iii) 2-storey frame building exposed in liquefaction

iv) Bored circular tunnels in soil type C

v) 2-storey MRF steel structure in soil type with Vs=150 m/s (SSI & Site amplification)

vi) Quay wall (W/H =0.6) considering liquefaction

Fragility Modifiers to account for soil-foundation-structure interaction SFSI

Shift the existing fragility curves for fixed-base structures by multiplying the median or standard deviation value for each damage state with a fragility modifier based on the knowledge of the soil class where the building is located.