黑龙江科技大学学报2024，Vol.34Issue(3)：401-408,8.DOI:10.3969/j.issn.2095-7262.2024.03.011
基于CESMD数据的楼面加速度放大系数研究
Study on floor acceleration amplification factor based on data from CESMD
摘要
Abstract
This paper aims to reasonably estimate the floor acceleration amplification factor(f)and determine the seismic force applied to the acceleration-sensitive nonstructural components.Based on the measured data of ground and floor accelerations of 73 concrete structures in CESMD database(Center for Engineering Strong Motion Data),the study involves defining the value range between the f-parabolic pa-rameter values of concrete structures with different height types,site categories,ground motion intensities and the f-value of top floor;and verifying the correctness of f based on parabolic model by using the measured data of Chi-Chi earthquake.The results show that for multi-story and high-rise concrete build-ings,with the increase of input PGA,the differences between different site categories are 85%and 43%,and f is related to site category,which has not been pointed out in previous studies.The parabolic curve of the fitted f can better reflect the distribution characteristics of the measured f of the concrete structure.The study provides suggestions for the value of f for the design of acceleration-sensitive non-structural components.关键词
加速度敏感型非结构构件/楼面加速度放大系数/抛物线模型Key words
acceleration-sensitive nonstructural components/floor acceleration amplification factor/parabolic model分类
建筑与水利引用本文复制引用
王涛,潘蕊,孟丽岩,刘吉胜..基于CESMD数据的楼面加速度放大系数研究[J].黑龙江科技大学学报,2024,34(3):401-408,8.基金项目
国家自然科学基金项目(52278173 （）
52078398) （）
