17:15 〜 18:45
[HDS09-P08] Seismic Retrofitting Techniques for Structures in Light of Kahramanmaraş (2023), Turkey and the Noto Peninsula (2024) Earthquakes
キーワード：Disaster-resilient structures, Seismic Retrofitting, Kahramanmaras Earthquake, Noto Peninsula Earthquake
All disasters (earthquakes, floods, floods, landslides, storms, terrorism, etc.) in the world, rapidly increasing population, migration to big cities and the creation of new settlements constantly, renewal of existing settlements, and urban transformation projects increase the need for seismic retrofitting techniques to be used in existing as well as new buildings. Marmara Research and Training Center for Disaster-Resilient Structures was established on December 21, 2022. The main purpose of the center is to provide the opportunity to research, examine, develop, implement, and collect data to predetermine the damages that earthquakes may cause to structures and reduce earthquake damages. In addition, it is among the objectives of the investment to support the academic staff and students who will conduct research and practice on earthquake engineering, to develop the existing research, application, and education infrastructure, to enable and support R&D and scientific research activities in line with the strategies and plans of the country. The center has just initiated a SATREPS project with the cooperation of JST and JICA titled “MARTEST - Establishment of a Research and Education Complex for Developing Disaster-Resilient Societies” effective from April 1, 2023, to April 1, 2028.
While working on this project, the Kahramanmaras earthquake of February 6th, 2023, hit the southern part of Turkey and caused more than 30,000 casualties and collapse and heavy damage to thousands of buildings. The economic losses of the earthquake are not known at the moment. The Noto peninsula earthquake of January 1st, 2024 caused extensive damage and collapse of many buildings as well as more than 200 fatalities in Japan. Early reconnaissance reports indicate that the damaged buildings did not comply with the current seismic design code requirements.
This paper discusses seismic retrofitting techniques for buildings and industrial facilities towards developing disaster-resilient societies to be used in existing as well as new buildings. For this purpose, a shaking table test was carried out on two moment frames, one with no seismic detailing and the other retrofitted. The first one was subjected to the Kahramanmaraş earthquake scaled to 0.35g and experienced heavy damage. The second frame is subjected to the original ground motion of 1.0g and survived the earthquake with minor damage. The results indicate that existing buildings/industrial facilities can easily be retrofitted by some easy-to-apply techniques providing stiffness, strength, and ductility to the structural framing system.
While working on this project, the Kahramanmaras earthquake of February 6th, 2023, hit the southern part of Turkey and caused more than 30,000 casualties and collapse and heavy damage to thousands of buildings. The economic losses of the earthquake are not known at the moment. The Noto peninsula earthquake of January 1st, 2024 caused extensive damage and collapse of many buildings as well as more than 200 fatalities in Japan. Early reconnaissance reports indicate that the damaged buildings did not comply with the current seismic design code requirements.
This paper discusses seismic retrofitting techniques for buildings and industrial facilities towards developing disaster-resilient societies to be used in existing as well as new buildings. For this purpose, a shaking table test was carried out on two moment frames, one with no seismic detailing and the other retrofitted. The first one was subjected to the Kahramanmaraş earthquake scaled to 0.35g and experienced heavy damage. The second frame is subjected to the original ground motion of 1.0g and survived the earthquake with minor damage. The results indicate that existing buildings/industrial facilities can easily be retrofitted by some easy-to-apply techniques providing stiffness, strength, and ductility to the structural framing system.