建筑结构学报2018，Vol.39Issue(1)：99-108,10.DOI:10.14006/j.jzjgxb.2018.01.012
考虑行人-结构相互作用的悬挑钢筋桁架楼承板振动控制研究
Human-induced vibration and control for cantilever steel bar truss deck slab based on pedestrain-structure interaction
摘要
Abstract
The continuous pedestrian load time history can be got via the new micro electronic mechanical systems AH100B acceleration sensor and Fourier series loading model can be established through the experiment.In order to consider pedestrain-structure dynamic interaction,the human body can be made an equivalent as a biomechanical model with one degree of freedom of mass,stiffness and damping.And then the fitting expressions of the parameters of the pedestrian model,the step frequency and the mass of the human body are determined.Then selecting a two-layer cantilever steel bar truss deck slab of Gansu Science and Technology Museum as engineering background,using ANSYS finite element software to simulate the human-induced vibration response of the structure,The comparative analysis shows that the acceleration response is reduced by at least 10.59％ after considering the pedestrain-structure interaction.According to the case that the maximum acceleration response of the structure exceeds the limit of serviceability index,the vibration response of the structure is controlled by a single tuned mass damper and a new 3-DOF tuned mass damper respectively.Both of them achieve better vibration damping effect,and the 3-DOF tuned mass damper with smaller damping is better.关键词
钢筋桁架楼承板/傅里叶级数荷载模型/人体生物力学模型/人致加速度响应/振动控制Key words
steel bar truss deck slab/flourier series loading model/body biomechanical model/human-induced acceleration response/vibration control分类
建筑与水利引用本文复制引用
朱前坤,刘路路,杜永峰,陈凯..考虑行人-结构相互作用的悬挑钢筋桁架楼承板振动控制研究[J].建筑结构学报,2018,39(1):99-108,10.基金项目
国家自然科学基金项目(51508257,51668042,51778276),甘肃省高等学校科研项目(2015B-34). （51508257,51668042,51778276）
