A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
First Seismic Isolation Examples in Existing Structures in Turkey
Seismic isolation is an earthquake protection system showing an increasing trend in the world, and over the past few decades, there has been a notable increase in the implementation of seismic isolation techniques in Turkey. Considering the seismicity of Turkey, seismic isolation provides many advantages to new-built and existing structures as a result of minimizing seismic action. Seismic isolation is predominantly employed in newly built structures such as hospitals, bridges, data centers etc. in Turkey, the first examples of these systems in existing structures are Marmara Başıbüyük Hospital and Moda Gurup Apartment as a residential building. Marmara Başıbüyük Hospital has been retrofitted with a conventional system in 2002 following the Düzce Earthquake, and the hospital hasn’t started operation since changing the seismic design code including the new chapters about the retrofit of the existing structure in 2007. After Düzce earthquake, the new retrofitting system with seismic isolation units has been required for all hospital with 150 beds and more by the Ministry of Health. The hybrid isolation system which has a combination of lead rubber bearing (LRB), pot bearing, and sliding-type elastomeric bearing has been used in the isolation system. In Moda Gurup Apartment Project, the seismic isolation system has been preferred by the tenants because of protecting the current constructional area avoids the smaller footprints and reduces the floor number according to the new construction plan. The hybrid system with LRB and elastomeric bearing (slider) is used at the foundation level. In both examples, the seismic acceleration and displacement limits for the global system are determined according to the superstructure performance under the design earthquakes. The system selection, design and installation details of these projects will be discussed in this paper.
First Seismic Isolation Examples in Existing Structures in Turkey
Seismic isolation is an earthquake protection system showing an increasing trend in the world, and over the past few decades, there has been a notable increase in the implementation of seismic isolation techniques in Turkey. Considering the seismicity of Turkey, seismic isolation provides many advantages to new-built and existing structures as a result of minimizing seismic action. Seismic isolation is predominantly employed in newly built structures such as hospitals, bridges, data centers etc. in Turkey, the first examples of these systems in existing structures are Marmara Başıbüyük Hospital and Moda Gurup Apartment as a residential building. Marmara Başıbüyük Hospital has been retrofitted with a conventional system in 2002 following the Düzce Earthquake, and the hospital hasn’t started operation since changing the seismic design code including the new chapters about the retrofit of the existing structure in 2007. After Düzce earthquake, the new retrofitting system with seismic isolation units has been required for all hospital with 150 beds and more by the Ministry of Health. The hybrid isolation system which has a combination of lead rubber bearing (LRB), pot bearing, and sliding-type elastomeric bearing has been used in the isolation system. In Moda Gurup Apartment Project, the seismic isolation system has been preferred by the tenants because of protecting the current constructional area avoids the smaller footprints and reduces the floor number according to the new construction plan. The hybrid system with LRB and elastomeric bearing (slider) is used at the foundation level. In both examples, the seismic acceleration and displacement limits for the global system are determined according to the superstructure performance under the design earthquakes. The system selection, design and installation details of these projects will be discussed in this paper.
First Seismic Isolation Examples in Existing Structures in Turkey
Lecture Notes in Civil Engineering
Sadan, Bahadir (editor) / Tuzun, Cuneyt (editor) / Erdik, Mustafa (editor) / Karayiğit, Hatice (author) / Özel, Cemal Noyan (author)
World Conference on Seismic Isolation ; 2023 ; Antalya, Türkiye
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures ; Chapter: 49 ; 623-633
2024-09-29
11 pages
Article/Chapter (Book)
Electronic Resource
English
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