基于钢弹簧隔振系统框架结构地铁振动响应研究

文章为研究基于钢弹簧隔振系统的框架结构受地铁振动响应规律,以某框架结构宿舍楼为例,在SAP2000软件建立了多工况有限元模型,分析钢弹簧隔振系统刚度、阻尼和框架结构混凝土强度等级、层高、楼层总数等参数的改变对框架结构地铁振动响应的影响。结果表明:在钢弹簧隔振系统特性中,增大刚度和阻尼会对框架结构受地铁振动产生不利影响。在框架结构特性中,增大混凝土强度等级会对框架结构受地铁振动产生有利影响;层高、楼层总数的改变并未产生明显单调变化规律。

In order to study the vibration response law of the frame structure based on the steel spring vibration isolation system,this paper takes a frame structure dormitory as an example,tries to establish a multi-case finite element model in SAP2000 software to analyze the rigidity,damping and frame of the steel spring vibration isolation system,and analyzes the influence of structural concrete strength grade,layer height,total number of floors and other parameters on the vibration response of frame structure subway.The results show that in the characteristics of the steel spring vibration isolation system,increasing the rigidity and damping will adversely affect the frame structure due to subway vibration;in the characteristics of the frame structure,increasing the concrete strength level will have a beneficial effect on the frame structure due to subway vibration;changes in floor height and total number of floors do not produce obvious monotonic changes.