首页 | 期刊简介 | 主要栏目 | 投稿指南 | 编委会 | 广告合作及广告客户 | 期刊订阅 | 书籍推荐 | 联系我们
基于有限元模型修正技术的复杂索拱体系施工稳定性
投稿时间:2017-12-31  修订日期:2017-01-05  点此下载全文
引用本文:戴轩奥,张其林,罗晓群.基于有限元模型修正技术的复杂索拱体系施工稳定性[J].计算机辅助工程,2018,27(1):35-41.
作者单位E-mail
戴轩奥 同济大学 土木工程学院 daixuanao@tongji.edu.cn 
张其林 同济大学土木工程学院建筑工程系 daixuanao@tongji.edu.cn 
罗晓群 同济大学 土木工程学院 daixuanao@tongji.edu.cn 
基金项目:上海市“科技创新行动计划”上海工程技术研究中心建设(14DZ2252300)
中文摘要:为准确分析复杂索拱体系结构的施工稳定性,以山东淄博潭溪山桥为例,提出一种基于有限元模型修正技术的分析方法。建立包括细部构造的精细化有限元模型,以节点位移构造目标函数对简化的梁系模型进行静力修正,修正后的梁系模型位移结果得到小幅改进,索力和结构应力得到明显改进。分别计算施工过程各阶段修正模型与未修正模型的线性稳定安全因数与非线性稳性定安全因数,对比分析结果认为:修正模型能够体现实际细部构造的加强作用,可使分析更为精确。将修正模型的稳定性分析结果与规范对比,认为结构施工稳定性满足要求。
中文关键词:有限元  修正  全过程  线性稳定  非线性稳定  安全因数
 
Construction stability of complex structure with arch and cable based on finite element model updating method
Abstract:To accurately analyze the construction stability of complex structure with arch and cable, an analysis method based on finite element model updating method is presented taking Tanxishan Bridge in Shandong Province as a case. The refine finite element model including detailed structures is built, and the objective function on node displacement is adopted to update the static forces of the simplified beam system model. The displacement results of beam system model is improved slightly, and the cable force and structural stress is improved obviously. The safety factors of linear stability and nonlinear stability on every stage of construction process are compared between the initial model and the updating model. The analysis results show that the reinforce of the actual detail structures can be expressed using the updating model, and the analysis is more accurate. The stability analysis results comparison between updating model and the standard shows that the construction stability meets the requirements.
keywords:finite element  updating  whole process  linear stability  nonlinear stability  safety factor
查看全文  查看/发表评论  下载PDF阅读器

您是第8837432位访问者
地址:上海市浦东新区海港大道1550号上海海事大学图书馆B511 邮编:201306
联系电话:021-38284908 传真:021-38284916 E-mail:smucae@163.com
微信号:CAEChina   QQ:274226135   QQ群(中国CAE技术交流):204762677
本系统由北京勤云科技发展有限公司设计
沪ICP备11028865号-2