[1]李瑞鸽,杨国立,张耀庭.预应力混凝土梁模态分析的有限元软件实现[J].西安建筑科技大学学报:自然科学版,2012,44(02):188-192,197.[doi:10.15986/j.1006-7930.2012.02.007]
 LI Rui-ge,YANG Guo-li,ZHANG Yao-ting.Modal analysis of prestressed concrete beam with finite element software[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2012,44(02):188-192,197.[doi:10.15986/j.1006-7930.2012.02.007]
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预应力混凝土梁模态分析的有限元软件实现()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
44
期数:
2012年02期
页码:
188-192,197
栏目:
出版日期:
2012-04-30

文章信息/Info

Title:
Modal analysis of prestressed concrete beam with finite element software
文章编号:
1006-7930(2012)02-0188-05
作者:
李瑞鸽1杨国立1张耀庭2
(1.台州学院建筑工程系,浙江 台州 318000;2.华中科技大学土木工程与力学学院,湖北 武汉 430074)
Author(s):
LI Rui-ge1 YANG Guo-li1 ZHANG Yao-ting2
(1.Taizhou University, Taizhou 318000 ,China; 2.Huazhong University of Science and Technology, Wuhan 430074,China)
关键词:
ANSYS预应力混凝土梁频率模态
Keywords:
ANSYS prestressed concrete beam frequency modal
分类号:
TU 378
DOI:
10.15986/j.1006-7930.2012.02.007
文献标志码:
A
摘要:
为建立预应力混凝土梁模态分析的有限元模型,以ANSYS有限元分析软件为例,提出预应力混凝土梁式结构在利用大型有限元软件进行模态分析时,可采用初应变法施加预应力,并且将混凝土受到的预压力影响转化为对单元材料弹性模量的影响,通过对变弹性模量的有限元模型进行模态分析,得到预应力混凝土梁在各级预应力下的自振频率和振型.通过与试验值对比可知,改进后的有限元模型可以用于预应力混凝土梁的模态分析
Abstract:
In order to create the modal analysis finite element model of prestressed concrete beams, a new analysis method has been proposed by the example of ANSYS finite element software. The prestressing force of beam is used by initial strain when the prestressed concrete beam modal is analyzed with finite element software. The perstressing force influence of the beam is changed to the impact of element materials elastic modulus. The frequencies and modals of prestressed concrete beams using ANSYS procedure is analyzed by varied modulus. The calculated natural frequencies at all levels prestessing force fit close with the experimental results. It shows that the modified finite element analysis model is feasible

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2011-07-06 修改稿日期:2012-03-28
基金项目:国家自然科学基金资助项目(51078166/E0808)
作者简介:李瑞鸽(1973-),女,河南叶县人,副教授,博士,从事混凝土及预应力混凝土结构的研究及教学.
更新日期/Last Update: 2015-09-01