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	自锚式悬索桥主缆锚固区多尺度建模方法
	周萌 ; 聂建国 ; ZHOU Meng ; NIE Jian-guo
	2016-03-30 ; 2016-03-30
关键词	自锚式悬索桥 主缆锚固区 多尺度模型 界面连接 受力性能 有限元法 self-anchored suspension bridge main cable anchorage zone multi-scale model interface connection mechanical behavior finite element analysis U448.25
其他题名	Multi-Scale Modeling Method for Main Cable Anchorage Zone of Self-Anchored Suspension Bridge
中文摘要	针对传统精细模型在分析自锚式悬索桥主缆锚固区时存在局部结构边界条件难以模拟、分析结果失真区的范围难以定量确定、精细有限元试算工作量繁重等问题,引入多尺度建模思想,提出了采用弹性边界这一广义边界条件模拟局部结构复杂边界的解决思路,并进一步建立了适用于自锚式钢箱梁悬索桥主缆锚固区受力性能研究的多尺度建模方法。例证结果与对比研究表明,采用界面连接方程控制的界面连接合理,多尺度模型计算结果精确、可靠,且不受失真区影响,无繁重的精细有限元试算工作,同时在建模速度和计算效率上与传统精细模型基本保持一致。; In view of the problems that it is difficult to simulate the boundary condition of local structure in the analysis of the main cable anchorage zone of self-anchored suspension bridge by using the traditional elaborate finite element model,the range of fuzzy region of the analysis result is difficult to be quantitatively determined and the work load of try and error of the elaborate finite element is enormous,the idea of multi-scale modeling is introduced,the solution to the problems,using the flexible boundary,a kind of the generalized boundary condition,to simulate the complex boundary of the local structure,is developed and the multi-scale modeling method suitable for study of the mechanical behavior of the main cable anchorage zone of the self-anchored steel box girder suspension bridge is correspondingly established.The results of the calculation examples and comparative study demonstrate that the strategy of the interface connection controlled by the interface connection equations is reasonable,the calculations of the multi-scale modeling are accurate,reliable and are free from the influence of the fuzzy region,free of the enormous work load of try and error and at the same time,the modeling speed and calculation efficiency basically keep identical to the those of the traditional elaborate finite element model.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/148828]
专题	清华大学
推荐引用方式 GB/T 7714	周萌,聂建国,ZHOU Meng,等. 自锚式悬索桥主缆锚固区多尺度建模方法[J],2016, 2016.
APA	周萌,聂建国,ZHOU Meng,&NIE Jian-guo.(2016).自锚式悬索桥主缆锚固区多尺度建模方法..
MLA	周萌,et al."自锚式悬索桥主缆锚固区多尺度建模方法".(2016).

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