Two-span continuous bridge damage localization method based on vertical support reaction
Date of Issue2014
School of Civil and Environmental Engineering
To localize the damage to main beams of continuous bridges accurately, a novel damage localization index based on the idea of "second order difference of support reaction influence line" was presented by employing influence line analysis for two-span continuous bridges. This index was called "difference index of influence line for vertical support reaction" (DⅡLSR). Subsequently, the damage localization method based on DⅡLSR was established. The results show that damage position of main beams with uncertain local flexural stiffness can be effectively identified by comparing two DⅡLSR graphs before and after damage. The effect of damage localization can be adjusted by changing the load value and the length of virtual interval.
China journal of highway and transport
© 2014 China Journal of Highway and Transport. This paper was published in China Journal of Highway and Transport and is made available as an electronic reprint (preprint) with permission of China Journal of Highway and Transport The paper can be found at the following official URL: [http://zgglxb.chd.edu.cn/EN/Y2014/V27/I4/79]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.