[1]孙玉永,肖红菊,张雷顺..无黏结部分预应力混凝土变截面公路桥的有限元分析[J].郑州大学学报(工学版),2007,28(03):16-19.[doi:10.3969/j.issn.1671-6833.2007.03.005]
　SUN Yuyong,XIAO Hongju,Zhang Leishun.Finite element analysis of variable section highway bridge of unbonded partially prestressed concrete[J].Journal of Zhengzhou University (Engineering Science),2007,28(03):16-19.[doi:10.3969/j.issn.1671-6833.2007.03.005]
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无黏结部分预应力混凝土变截面公路桥的有限元分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
28卷
期数:
2007年03期
页码:
16-19
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Finite element analysis of variable section highway bridge of unbonded partially prestressed concrete
作者:
孙玉永; 肖红菊; 张雷顺.
同济大学,道路与交通工程教育部重点实验室,上海,200331, 铜陵学院,土木工程系,铜陵,244000, 郑州大学,环境与水利工程学院,河南,郑州,450001
Author(s):
SUN Yuyong; XIAO Hongju; Zhang Leishun
关键词:
无黏结;  预应力;  公路桥;  有限单元法
Keywords:
DOI:
10.3969/j.issn.1671-6833.2007.03.005
文献标志码:
A
摘要:
在通用有限元分析软件ANSYS中施加预应力的2种方式:分离式和整体式.文章针对整体式详细讨论了建立有限元模型的2种方法:实体分割法和独立建模耦合法.最后,针对平顶山市X017线王村Ⅱ号桥上部结构一变截面无黏结部分预应力混凝土梁,应用整体式施加预应力和独立建模耦合法建立有限元模型,分析其受力全过程.结合实测数据,对计算所得荷载-挠度曲线、截面应变及混凝土应力进行对比,通过对比可知误差在5%以内,验证了本方法的可行性和适用性.
Abstract:

There are 2 ways to apply prestress in the general finite element analysis software ANSYS: discrete and monolithic. In this paper, two methods for establishing finite element models are discussed in detail for the monolithic formula: the solid segmentation method and the independent modeling coupling method. Finally, for the unbonded concrete beams of the superstructure of Wangcun II Bridge of Line X2 in Pingdingshan City, a finite element model is established by applying the integral prestress and independent modeling coupling method to analyze the whole process of stress. Combined with the measured data, the calculated load-deflection curve, cross-sectional strain and concrete stress are compared, and the error can be seen to be within 017%, which verifies the feasibility and applicability of the proposed method.

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更新日期/Last Update: 1900-01-01