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 模型中采用平面四結(jié)點(diǎn)等參數(shù)單元模擬上部框架結(jié)構(gòu)的梁柱構(gòu)件。
The common types of coupling elements were derived , including bezier coupling element ( bce ) type and bezier iso - parametric element ( bie ) type . the new elements possess good performances in completeness and compatibility 所構(gòu)建的bezier移動(dòng)節(jié)點(diǎn)單元均滿足完備性和協(xié)調(diào)性的要求,并與常規(guī)有限單元法中的單元具有很好的相容性。
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 為了正確處理結(jié)構(gòu)?地基動(dòng)力相互作用,改善以往固定邊界模型將地震能量全部陷入結(jié)構(gòu)計(jì)算模型的不合理狀況,以框架結(jié)構(gòu)為例提出了建筑結(jié)構(gòu)地震反應(yīng)分析的有限元模型及透射邊界,模型中采用四結(jié)點(diǎn)平面應(yīng)力等參單元模擬上部框架結(jié)構(gòu)的梁柱構(gòu)件。