题名: |
Seismic Simulation of an Integrated Ceiling-Partition Wall-Piping System at E-Defense. II: Evaluation of Nonstructural Damage and Fragilities |
正文语种: |
英文 |
作者: |
Siavash Soroushian, M.ASCE; E. “Manos” Maragakis; Keri L. Ryan, A.M.ASCE; Eiji Sato; Tomohiro Sasaki; Taichiro Okazaki, M.ASCE; Gilberto Mosqueda, A.M.ASCE |
作者单位: |
Structural Analyst, Advanced Technology and Research, Arup;Univ, of Nevada;National Research Institute for Earth Science and Disaster Prevention |
关键词: |
Nonstructural components; Vertical ground motion; Shake table testing; Suspended ceiling; Sprinkler-piping; Fragility functions; Seismic effects. |
摘要: |
A full-scale, 5-story steel moment frame building in base-isolated and fixed-base configurations was subjected to a number of ground motions using the E-Defense shake table. In these experiments, more than 84 m2 (900 ft2) of suspended ceiling with lay-in tiles, 90 m (300 linear ft) of partition walls with individual lengths varying from 1.5 to 9.8 m (5 to 32 ft), and three sprinkler branch lines were installed below the fifth and sixth (roof) floors of the building. Because the horizontal floor accelerations were generally constrained to relatively low values by the base isolation system, several damage states related to vertical floor system acceleration were observed. One key observation is that use of lateral bracing with compression posts did not improve the seismic response of suspended ceilings when subjected to strong vertical excitation. Acceleration amplification factors of the ceiling-partition-partition components relative to structural floor accelerations were computed. The code-prescribed amplification factors for the design of nonstructural components was consistent with the observed amplification in the horizontal direction, but unconservative in the vertical direction, because the code neglects the additional amplification produced by slab vibration. DOI: 10.106l/(ASCE)ST.1943-541X.0001385. © 2015 American Society of Civil Engineers. |
出版日期: |
2016.02 |
出版年: |
2016 |
期刊名称: |
Journal of Structural Engineering |
卷: |
Vol.142 |
期: |
NO.02 |
页码: |
04015131 |