Lateral instability of long-span prestressed concrete beams on flexible bearings

被引：0
|
作者：
Burgoyne, C.J. [1 ]
Stratford, T.J. [1 ]
机构：
[1] Department of Engineering, University of Cambridge, Cambridge, United Kingdom
来源：
Structural Engineer | 2001年 / 79卷 / 06期
关键词：
Bridge bearings - Buckling - Defects - Dimensional stability - Dynamic response - Flexible structures - Prestressed concrete - Stiffness - Stresses - Structural analysis - Structural loads;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The paper describes the method of calculation of the buckling load of beams on flexible bearings due to the beam's self-weight. Methods are given that allow calculation of the bearing stiffness needed to prevent instability, as well as the additional curvature and additional stresses due to the growth of initial imperfections at loads less than the critical load. Methods of providing temporary support and of jacking beams into position are also discussed.
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页码：23 / 26
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