摘要
舒适度是大跨度楼盖中重要的控制指标。基于舒适度评价标准,对大跨度空腹夹层板楼盖进行了动力响应分析,研究了不同人行激励下空腹夹层板楼盖的舒适度性能。结果表明:空腹夹层板振型以竖向为主,在定点激励下,其峰值加速度随着激励频率的增大而增大;通过低阶振型中心的激励产生的加速度大于未通过低阶振型中心路线;有规律人体高强度运动荷载激励下,空腹夹层板峰值加速度较大,在工程设计中应该进行舒适度分析,加强楼盖的振动控制。
Vibration serviceability is an important control index in large-span floor.Based on the evaluation standard of vibration serviceability,the dynamic response of large span open-web sandwich plate is analyzed,and the performance of vibration serviceability for open-web sandwich plate under different human-induced load is investigated.The results show that the vibration mode of open-web sandwich plate is mainly vertical,and its peak acceleration increases with the increase of excitation frequency under fixed-point excitation.The acceleration generated by the excitation passing through the center of the low-order mode is greater than that not passing through the center of the low-order mode;under the excitation of loading with regular human high-intensity motion,the peak acceleration of open-web sandwich plate is relatively large.So analysis on vibration serviceability should be carried out in engineering design to strengthen the vibration control of floor.
作者
钟永力
晏致涛
陈靖
罗杰
ZHONG Yongli;YAN Zhitao;CHEN Jing;LUO Jie(School of Civil Engineering and Architecture,Chongqing University of Science and Technology,Chongqing 401331,China;Space Structure Research Center,Guizhou University,Guiyang 550003,China;China Construction Fourth Engineering Bureau Guizhou Investment and Construction Co.,Ltd.,Guiyang 550014,China)
出处
《贵州大学学报（自然科学版）》
2023年第3期86-91,共6页
Journal of Guizhou University:Natural Sciences
基金
国家自然科学基金资助项目(52008070)
重庆市教委科学技术研究计划青年项目(KJQN202001511)。
关键词
空腹夹层板
振动舒适度
动力特性
加速度响应
人致荷载
open-web sandwich plate
vibration serviceability
dynamic characteristics
acceleration response
human-induced load
