论文部分内容阅读
为了确保工作人员安全的情况下同时保障常规岛主厂房内的贵重设备在大震情况下不至于遭受到较大的损失,常规岛主厂房的抗震设计要求应该采用更高标准,因此文章采用基于结构变形的抗震设计方法。针对常规岛主厂房的变形特点,在小震,中震和大震作用下,通过有限元软件SAP 2000进行静力弹塑性分析和动力时程分析。用SAP2000对常规岛主厂房整体结构进行建模时,设置了整体建模参数和结构分析系数,并按照《建筑抗震设计规范》要求选取了3条实际地震波和2条人工波,进行静力弹塑性分析和动力时程分析后获取了常规岛主厂房在不同地震水准作用下整体层间位移角。分析结果表明,常规岛主厂房结构整体在小震、中震以及大震作用下,不论是横向地震作用还是纵向地震作用下的层间位移角平均值远小于设定的整体层间位移角限值,符合预期设定变形目标要求。
In order to ensure the safety of staff and at the same time protect the expensive equipments in the conventional island main factories from being greatly damaged under the earthquake conditions, the seismic design requirements of the conventional island main buildings should adopt a higher standard. Therefore, Seismic Design Method of Structural Deformation. Aiming at the deformation characteristics of the conventional island main building, the static elasto-plastic analysis and dynamic time history analysis are carried out through finite element software SAP 2000 under the action of small earthquakes, moderate earthquakes and large earthquakes. When SAP2000 is used to model the overall structure of a conventional island master plant, the overall modeling parameters and structural analysis coefficients are set and three actual seismic waves and two artificial waves are selected according to the requirements of Code for Design of Seismic Design of Buildings. Plasticity analysis and dynamic time history analysis, the overall displacement angle of the conventional island main building under different seismic levels is obtained. The analysis results show that the average displacement between layers under the action of small earthquakes, medium earthquakes and large earthquakes in the conventional island main building structure is far less than the set integral displacement limit Value, in line with the expected set deformation target requirements.