As seismic risk becomes a growing concern for urban areas around the world, engineers are rethinking how structures are designed to withstand earthquakes. A new research paper by two Engineering Institute of Technology (EIT) experts highlights key global research trends in performance-based design (PBD), shedding light on how the field is evolving to meet the challenges of modern seismic engineering.
Understanding Seismic Risk: The Role of Local Geology
In earthquake-prone regions, understanding the local geological and geophysical conditions is essential for safe structural design. However, many past studies have lacked critical detail in this area.
According to EIT’s Dr. Ana Evangelista and Dr. Mistreselasie Abate, “Previous studies have lacked crucial components such as local soil condition, ground response analysis, topographic influences, active fault characteristics, slip rates, groundwater behavior, and slope considerations.”
They emphasize that for a country to produce an accurate seismic hazard map (and by extension, safer and more cost-effective urban structures) these components must be fully considered.
In their paper titled Global Research Trends in Performance-Based Structural Design: A Comprehensive Bibliometric Analysis, the authors also highlight the importance of multidisciplinary investigations, such as logic-tree approaches, to enhance seismic hazard assessments.
Their paper argues that without such detailed evaluation, hazard maps may fall short of reflecting true risk, especially in densely populated urban areas.
Why Performance-Based Design Matters
In light of these uncertainties, the authors advocate for the adoption of performance-based design (PBD) as a key strategy in seismic engineering.
“A performance-based approach allows engineers to design buildings to specified performance levels (IO, LS, CP) even without a reliable seismic hazard map,” they write.
These performance levels: Immediate Occupancy (IO), Life Safety (LS), and Collapse Prevention (CP), offer engineers a more flexible and outcome-oriented method of structural design.
Drs. Evangelista and Abate describe the approach as “akin to a miracle” for countries that lack reliable hazard mapping, as it allows for safer construction even when precise seismic data is unavailable.
Their research underscores the value of PBD in making structural engineering more adaptable, especially in areas where traditional hazard modeling may be incomplete or outdated.
Mapping Global Research Trends in PBD
To understand how performance-based design is developing globally, Evangelista and Abate conducted a comprehensive bibliometric analysis of academic literature from 1969 to 2023, examining 3,456 publications sourced from the Scopus database.
Using VOSviewer version 1.6.19, a bibliometric mapping and visualization software, they identified key trends and influential entities within the PBD research landscape. Their study highlights preferred journals, leading countries, prominent organizations, and major international institutions contributing to the field.
One of their key findings is the steady growth in the number of PBD-related publications over time, signaling increasing academic and practical interest in this approach.
Through co-citation analysis, they examined how frequently certain works are cited together, which helps clarify which authors and concepts form the intellectual backbone of PBD research.
Additionally, their co-word analysis tracked how research topics within PBD have evolved. The increasing use of the term “performance-based design” in recent years reflects a growing shift in engineering focus toward methods that allow for tailored, risk-informed construction practices.
Building Global Collaboration Through Research
Beyond analyzing publication trends, Evangelista and Abate emphasize the importance of cross-border collaboration in advancing performance-based design.
“By fostering collaborative efforts and expanding research networks, we aim to facilitate the development of coordinated initiatives within the field,” they write.
Their analysis identifies global leaders in PBD research and encourages increased cooperation among institutions to address complex seismic challenges more effectively.
By sharing data, methodologies, and results, engineers and researchers can accelerate the development of design frameworks that are both practical and globally informed.
Future Directions in Seismic Structural Design
While Evangelista and Abate do not make specific predictions about future technologies, their study illustrates a growing reliance on PBD as a foundational framework in seismic engineering.
The paper confirms that performance-based design is increasingly central to how engineers assess and plan for earthquake resilience, especially in places where conventional methods may fall short.
As urban development continues in seismically active areas, the insights from this bibliometric study provide a clearer picture of how the engineering community is responding—with more data-driven, adaptive, and collaborative approaches.
By analyzing decades of research and identifying the most influential trends and institutions, Evangelista and Abate offer a valuable resource for engineers, policymakers, and researchers who are committed to safer, smarter structural design in the face of seismic risk.
Safer Structures Already in Practice
From high-rise towers to remote clinics, the principles of PBD and earthquake-informed design are already shaping structures across the world.
Miyamoto International (Haiti and Nepal): After devastating quakes in Haiti and Nepal, engineers used PBD principles to rebuild schools and hospitals with better shock absorption and flexible frames, creating structures designed to remain functional during future seismic events.
Stanford University’s “Big Shaker” Lab (USA): In California, researchers are stress-testing full-scale building models using dynamic shake tables, helping refine damping systems and flexible foundations that match real-world seismic scenarios.
Kobe, Japan: Post-earthquake rebuilding efforts in Kobe prioritized life-safety and rapid recovery. Buildings now feature base-isolation systems and tuned mass dampers that reduce structural sway during seismic activity.
Medellín, Colombia: Engineers and urban planners partnered to retrofit hillside communities vulnerable to landslides and quakes. Using community-built materials and PBD-aligned methods, they created safer homes while preserving cultural integrity.
These real-world successes demonstrate the power of integrating seismic understanding with purpose-driven design, creating buildings that not only survive earthquakes, but do so in ways that protect people and communities.
What’s Next: Toward Smarter, Stronger, Safer Cities
Looking ahead, earthquake engineering is set to become even more precise, predictive, and personalized.
Advanced ground motion simulations, which account for everything from soil behavior to fault rupture dynamics, are replacing older, static models. Engineers can now simulate how buildings respond to dozens of potential quakes, not just a single design event.
At the same time, artificial intelligence and machine learning are being deployed to identify risk patterns in structural health monitoring data, enabling real-time alerts and smarter retrofitting decisions.
Expect also to see greater use of logic-tree modeling, a concept emphasized in Drs.Evangelista and Abate’s research, which allows engineers to account for multiple possible outcomes and uncertainties when assessing seismic risks.
Meanwhile, global collaboration continues to grow. “By fostering collaborative efforts and expanding research networks, we aim to facilitate the development of coordinated initiatives within the field,” the EIT authors write.
The future of earthquake engineering will not be defined by a single technology or region; it will be a shared endeavor, shaped by data, design, and a deepening understanding of how the ground moves beneath us.
When the next big quake strikes, the best defense will be the structures we have built; carefully, consciously, and with science on our side.
References
Global Research Trends in Performance-Based Structural Design: A Comprehensive Bibliometric Analysis