Maximum response prediction of base-isolated structure with a slip-type damper system preventing excessive displacement
- Title
- Maximum response prediction of base-isolated structure with a slip-type damper system preventing excessive displacement
- Author
- 김태수
- Keywords
- Large-scale earthquake; Seismic isolation device; Circular hollow section damper; Energy balance method; Maximum response displacement
- Issue Date
- 2024-03-04
- Publisher
- ELSEVIER SCIENCE INC
- Citation
- STRUCTURES
- Abstract
- Securing the stability of seismic isolation structures under extreme loads is one of the challenges for countries
located in earthquake-prone areas. In Japan, large-scale earthquake predictions exceed the maximum target level
set in existing building codes. During large-scale earthquakes, seismic isolation structures can excessively deform, resulting in unexpected damage, such as collisions between buildings and retaining walls. This study presents the development and applicability of a new steel damper system that can be used as a seismic isolation device for large-scale earthquakes. The proposed damper system consists of a circular hollow section steel damper welded to the upper and lower endplates and a bearing frame that covers the upper endplate. The lower endplate was fixed, and a horizontal force was transmitted to the circular hollow section damper in three different states: initial, slip, and bearing. The maximum displacement response was obtained using a seismic response evaluation based on the energy balance method by installing the new damper system as a base-isolated layer composed of an isolator and steel damper. The results indicated that the new damper system significantly
reduced the seismic response during large-scale earthquakes.
- URI
- https://information.hanyang.ac.kr/#/eds/detail?an=S2352012424002200&dbId=edselphttps://repository.hanyang.ac.kr/handle/20.500.11754/189515
- ISSN
- 2352-0124
- DOI
- 10.1016/j.istruc.2024.106068
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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