上部框架结构 meaning in English

frame superstructure

In the model , components of upper frame structures , such as beams and columns , are simulated with plane 4 - node quadrilateral parametric elements , and soils with plane 4 - node quadrilateral parametric elements
模型中采用平面四结点等参数单元模拟上部框架结构的梁柱构件。
In order to overcome the drawback of classical fixed boundary models , a finite element model of structure - foundation system has been suggested in this paper for the earthquake response analysis of frame structures , such as beams and columns , are described with plane - stress 4 - node quadrilateral parametric element , and foundations with plane - strain 4 - node quadrilateral parametric element
为了正确处理结构?地基动力相互作用，改善以往固定边界模型将地震能量全部陷入结构计算模型的不合理状况，以框架结构为例提出了建筑结构地震反应分析的有限元模型及透射边界，模型中采用四结点平面应力等参单元模拟上部框架结构的梁柱构件。