防灾减灾工程学报2017，Vol.37Issue(2)：230-236,7.DOI:10.13409/j.cnki.jdpme.2017.02.008
圆柱面巨型网格结构的粘滞阻尼器减震研究
Study on Vibration Reduction of Cylindrical Reticulated Mega-structures with Viscous Dampers
摘要
Abstract
The cylindrical latticed-intersected-three-dimensional-beam-system reticulated megastructure is selected to research the efficiency of vibration reduction of viscous dampers from the aspects of the distribution of viscous dampers and damping coefficient based on the measurements of the peak values of displacement and acceleration by using time-history method under frequent earthquakes.The efficiency of dampers under rare earthquake is explored combined with the better distribution and coefficient of viscous dampers found above.The calculation results show that the uniform arrangements have higher efficiency of vibration reduction than lumped arrangements.With the increase of damping coefficient,the vibration reduction rate of displacement has the trend of growth which becomes slower.The reduction rate of acceleration increases rapidly with relatively low damping coefficient,while the rate tends to decrease as the damping coefficient increases.Under rare earthquake,the response and the number of yielding bars of structures that takes viscous dampers to control vibration reduction decrease obviously.The result is aimed to provide reference for the design of viscous dampers to reduce the vibration of cylindrical reticulated mega-structure.关键词
巨型网格结构/粘滞阻尼器/减震控制/时程分析Key words
reticulated mega-structure/viscous dampers/vibration reduction/time-history analysis分类
建筑与水利引用本文复制引用
贺拥军,郭文豪..圆柱面巨型网格结构的粘滞阻尼器减震研究[J].防灾减灾工程学报,2017,37(2):230-236,7.基金项目
国家重点研发计划项目(2016YFC0701201)、湖南省高校科技创新团队滚动资助计划[湘财教指(2015)616号]资助 （2016YFC0701201）
