摘要
针对大多数弹塑性损伤模型存在涉及参数多且不易确定的问题,使用C++语言编制弹塑性损伤本构求解程序并将其集成到自主开发的基于差异进化算法(Differential Evolution,DE)的智能参数反分析程序中,通过算例验证了本构模型的准确性及智能反演程序的可行性.在此基础上,将该程序应用于大连地铁洞桩法车站的损伤参数反演工作中,通过第一个施工工序的监测位移反演损伤参数,并用反演所得参数对后续施工工序进行有限元模拟.研究结果表明:该方法及程序具有较好的可靠性,能够解决实际工程问题,对现场施工有较好的指导作用.
In consideration of most elastoplastic damage model with many parameters and which is not easy to determine, the elastoplastic damage constitutive solving program was compiled by C ＋ ＋ language, and which was integrated into the intelligent parameters back analysis program based on difference evolution algorithm. The accuracy of the constitutive model and the feasibility of the back analysis program were verified by a numerical example. Based on this, the program was applied in damage parameters inversion of hole-pile method in Dalian metro station construction, the damage parameters from inversion of monitoring displacement of the first construction process was used to finite element simulation of the subsequent construction process. Results show that the method and program have good reliability to solve practical engineering problems.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2015年第3期109-114,共6页
Journal of Dalian Maritime University
基金
大连市交通科技项目(2011-10)
吉林省交通厅交通运输科技项目(2012-1-6)
辽宁省科学事业公益研究基金资助项目(2013003003)
中央高校基本科研业务费优秀科技创新团队培育计划资助项目(3132014326)
关键词
损伤模型
参数反演
本构模型
差异进化算法
洞桩法
反分析
damage model
parameters inversion
constitutive model
differential evolution algorithm
hole-pile method
back analysis
