Existing Concrete Girder Bridges Bending Stiffness Assessment Based on Crack Characteristics Parameters
A lot of existing reinforced concrete girder bridges appeared cracks in the service phase.Because of the beams cracks existing, the sectional bending stiffness of the beam decreased.It would reduce the structures bearing capacity, so the bridges structure performance urgently needs to be assessed by effective methods, so as to study further measures.In this paper, based on the indoor model test results of four pieces of model beams, regression analysis of the crack characteristics parameters and tests load-displacement curves has been carried out.The relationship between crack characteristics parameters and girder bridges bending stiffness has been established.The qualitative assessment of structure cracks appearance inspection is transmitted to quantitative assessment, so it will make the assessment more objective and scientific.
RC girder bridge Crack characteristics Bending stiffness Assessment
Donglian Tan Wenhua Yan
Highway College Changan University,Xian,710064,China Architectural Design & Research Institute of Tongji University,Shanghai,200092,China
国际会议
上海
英文
1581-1585
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）