In the realm of construction and seismic engineering, a groundbreaking study led by Zaza Jangidze from the Civil and Industrial Engineering department at Georgian Technical University in Tbilisi, Georgia, has shed new light on the stability of irregular structures during seismic impacts. The research, published in the journal ‘AGG+’ (Advanced Geotechnical and Geomechanical Problems), delves into the complexities of reinforced concrete large-panel and frame buildings, structures that have seen widespread use despite their relatively short history in modern construction.
Jangidze’s work focuses on the vulnerabilities of these buildings, particularly at the edges of panels, support nodes on roof panels, and other critical connections. “The resistance of reinforced concrete wall panels is much higher than that of stone piles,” Jangidze explains. “However, it is in these relatively weak points—such as the edges of the panels and support nodes—that cracks, broken corners, and other injuries develop during earthquakes.” This insight is crucial for understanding how to fortify existing structures and design new ones that can withstand seismic activity more effectively.
The study proposes three innovative methods for the restoration and reconstruction of damaged large-block multi-story buildings. These methods include the use of metal diagonal web members and variable rigid systems within the building’s interior, the integration of seismic insulators, and the construction of reinforced-concrete pylons along the entire height and perimeter of the building. Additionally, the arrangement of loggias and the building of pylons along longitudinal facades are suggested, along with the addition of extra frames and seismic insulators if necessary. These approaches not only enhance the structural integrity of buildings but also pave the way for more sustainable and resilient construction practices.
For the energy sector, the implications of this research are significant. Buildings in seismic hazard zones often require extensive retrofitting to meet safety standards, a process that can be both costly and time-consuming. Jangidze’s methods offer a more streamlined and effective approach to seismic retrofitting, potentially reducing downtime and financial burdens for energy infrastructure. By improving the stability of buildings, these methods can also enhance the resilience of energy systems, ensuring that critical facilities remain operational during and after seismic events.
The energy sector stands to benefit greatly from these advancements. Energy infrastructure, including power plants, transmission lines, and storage facilities, is often located in areas prone to seismic activity. The ability to retrofit and reinforce these structures quickly and effectively can mitigate the risk of widespread power outages and other disruptions. Jangidze’s research provides a roadmap for achieving this, offering practical solutions that can be implemented on a large scale.
As the construction industry continues to evolve, the need for seismic-resistant structures becomes increasingly pressing. Jangidze’s work not only addresses current challenges but also sets the stage for future developments. By providing a comprehensive analysis of the stability of irregular structures during seismic impacts, this research opens new avenues for innovation and sustainability in construction. As Jangidze notes, “The use of reinforced concrete pylons and seismic insulators represents a significant leap forward in our ability to protect buildings and their occupants from the devastating effects of earthquakes.”
The study, published in ‘AGG+’, or Advanced Geotechnical and Geomechanical Problems, underscores the importance of ongoing research in seismic engineering. As we continue to build and retrofit structures in seismic hazard zones, the insights gained from this research will be invaluable in shaping a more resilient and sustainable future.
