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| PC连续梁桥竖向预应力损失的数值分析 | |
| 引用本文： | 吕强,舒富民,黄检. PC连续梁桥竖向预应力损失的数值分析[J]. 西部交通科技, 2008, 0(2): 50-52 |
| 作者姓名： | 吕强 舒富民 黄检 |
| 作者单位： | 1. 湖南省路桥建设集团公司,湖南,长沙,410004 2. 东南大学,交通学院,江苏,南京,210096 3. 重庆交通大学,土木建筑学院,重庆,400074 |
| 摘 要： | 文章通过对实桥进行数值仿真模拟,研究发现竖向预应力不足或损失过大是造成腹板斜裂缝的主要原因。得出腹板渐变在相邻3个节段完成,能大大减少主拉应力损失,从而在一定程度上缓解主拉应力值突变的结论。 |
| 关 键 词： | 腹板裂缝 竖向预应力损失 数值分析 |
| 文章编号： | 1673-4874(2008)02-0050-03 |
| 修稿时间： | 2008-03-14 |
Numerical Analysis on Vertical Prestress Loss of PC Continuous Prestressed Girder Bridge |
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| LV Qiang,SHU Fu-min,HUANG Jian. Numerical Analysis on Vertical Prestress Loss of PC Continuous Prestressed Girder Bridge[J]. Western China Communication Science & Technology, 2008, 0(2): 50-52 | |
| Authors: | LV Qiang SHU Fu-min HUANG Jian |
| Abstract: | Through the numerical simulation of the actual bridge,the study in the Paper shows that the inadequacy or excessive loss of vertical prestress is the main cause of diagonal crack on the web.It is concluded in the Paper that if the webs' transition stops in the adjacent three segments,it will greatly decrease the principal tensile stress loss and in certain extend minimize the mutation of principal tensile stress. |
| Keywords: | Web cracks Vertical prestress losses Numerical analysis |
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