摘要
对OpenSees软件提供的Concrete04和Concrete07两种基于Mander模型开发的混凝土本构模型的计算原理和参数取值进行详细的归纳;并建立有限元模型,对钢筋混凝土柱进行滞回性能分析.同时选取不同的塑性铰长度和等效刚度计算公式,分析其对钢筋混凝土柱滞回性能计算结果的影响.研究表明:采用Concrete07模型和中国规范给出的塑性铰长度计算公式,对钢筋混凝土柱滞回性能模拟的稳定性较好;不同的等效刚度取值对钢筋混凝土柱滞回性能计算结果的影响较小.
The calculation principle and parameter valuation for two concrete constitutive models Concrete04 and Concrete07 provided by software OpenSees and developed on the basis of Mander model were summed up in detail,and finite element models were established to analyze the hysteretic behavior of reinforced concrete columns.Meantime,the influence of several computational formulas selected for calculation of plastic hinge length and effective stiffness on the computation result of hysteretic behavior of reinforced concrete columns was analyzed,also.The research shows that the stability of simulation for hysteretic behavior of reinforced concrete columns by using the Concrete07 model and the computation formula of plastic hinge length stipulated by Chinese norm will be better and the valuation of different effective stiffness will have little effect on the computation result of hysteretic behavior of reinforced concrete columns.
作者
赵金钢
杜斌
占玉林
ZHAO Jin-gang DU Bin ZHAN Yu-lin(College of Civil Engineering, Guizhou University, Gniyang 550025, China School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China National Engineering Laboratory for Technology of Geological Disaster Prevention in Land Transportation, Chengdu 610031, China)
出处
《兰州理工大学学报》
CAS
北大核心
2017年第5期127-133,共7页
Journal of Lanzhou University of Technology
基金
国家自然科学基金(51208431)
国家重点研发计划(2016YFB1200401)
四川省科技计划项目(2017GZ0369)
