摘要
本文基于弹塑性铰概念提出了一种按杆系进行钢框架弹塑性静力和动力反应计算的非线性分析模型。该模型能考虑Bauschinger效应、应变强化效应和强度退化效应的影响,且能描述钢杆件在任意状态下真实弹塑性刚度的连续性变化过程。免除了双分量模型的计算刚度在杆件的不同状态下发生突变的缺陷,大大简化了钢框架弹塑性静力和动力分析计算。试验分析表明,本文的分析模型是可靠的,且具有较高的仿真精度。
Based on the concept of elasto-plastic hinge, a kind of nonlinear analysis models for elasto-plastic static and dynamic response of steel frames is presented in this paper. The proposed analysis model can take into account the Bauschinger effect, the strain hardening effect and the strength degeneration effect, and depict the continuous changing process of the real elasto-plastic rigidity of steel bars under arbitrary states. The shortcoming of the currently used bilinear model yielding sudden change of rigidity of bars at different states are being overcome and the analysis of elasto-plastic static and dynamic response of steel frame will be simplified greatly by using the given model. The analyses of static and dynamic tests of steel frames indicate that the analysis model presented in this paper is reliable and possess high simulating accuracy.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
1990年第2期51-59,共9页
Journal of Building Structures
