铁道科学与工程学报Issue(5)：35-40,6.
弯剪型层模型弹塑性时程分析的若干问题
Discussion on elasto-plastic ti me-history analysis of shear-bending storey model
陆铁坚 1杨诗龙1
作者信息
- 1. 中南大学 土木工程学院，湖南 长沙410075
- 折叠
摘要
Abstract
This paper devotes to the elasto-plastic time-history analysis method for complex structural system based on shear-bending storey model.Firstly,the equivalent bending and shear stiffness for each storey were obtained according to the assumption that the value of displacement at each floor level of the original structure e-quates to that of the equivalent model under horizontal load.Then on the basis of applying the parallel-circuit model and introducing the shape function of bending deflection,the stiffness matrix of storey element was de-duced based on the principle of stationary potential energy.Ultimately,the dynamic equation in view of inter-stored state parameters was established,by which the accurate computational formula for dealing with loading and unloading critical point was derived without any assumption introduced.The accuracy and feasibility of the stiff-ness matrix of storey element proposed in the present paper was verified in comparison with study of a numerical example,while there existed large variation for maximum inter-storey displacement of the weak storey when u-sing different methods for the critical point.关键词
弯剪型结构/层模型/弹塑性/时程分析/拐点Key words
flexural-shear structure/storey model/elasto-plastic/time-history analysis/critical point分类
建筑与水利引用本文复制引用
陆铁坚,杨诗龙..弯剪型层模型弹塑性时程分析的若干问题[J].铁道科学与工程学报,2014,(5):35-40,6.
