Dynamic Response of 100m, 200m, 300m Lattice Domes with LRB Seismic Isolator

• 作者: Da-jin Kim Dong-il Choi Kang-geun Park
• 来源期刊: 土木工程与建筑:英文版
• 学科: 地球科学
• 关键词: 300m DOME SEISMIC isolation response reducing effect time history analysis SEISMIC ground motion
• 年，卷（期）: 2019,（8）
• 页码范围: 523-537
• 页数: 15页
• 分类号: P31

摘要

The objective of this study is to analyze the seismic response characteristics of 100 m, 200 m, 300 m spanned lattice domes under both horizontal and up-down ground motion of El Centro earthquake. For the analysis of earthquake response of lattice domes, the time history analysis is used for the estimation of the dynamic response. Horizontal and up-down earthquake ground motions cause a large asymmetric vertical deformation in the large spatial domes. This study is to investigate the seismic characteristics of lattice domes for eigenvalue modes, displacement and acceleration response. The earthquake response of lattice domes with LRB (lead rubber bearing) isolation device by the horizontal and up-down combined ground motion is significantly reduced for the asymmetric vertical deformation and accelerations of domes.