Kexin Zhang*, Tianyu Qi, Dachao Li, Xingwei Xue, Yanfeng Li
Structural Durability & Health Monitoring, Vol.16, No.1, pp. 53-80, 2022, DOI:10.32604/sdhm.2021.016130
- 11 February 2022
Abstract This paper presents the method of reinforcing main girder of reinforced concrete cable-stayed bridge with prestressed steel strands. To verify the effectiveness of external prestressed strand reinforcement method. Static load
tests and health monitoring-based assessment were carried out before and after reinforcement. Field load test
shows that the deflection and stress values of the main girder are reduced by 10%~20% after reinforcement,
and the flexural strength and stiffness of the strengthened beam are improved. The deflection and strain data
of health monitoring of the specified section are collected. The deflection of the second span is More >
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