期刊
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
卷 29, 期 10, 页码 1370-1385出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2020.1820117
关键词
Creep; field load test; I-shaped beam; steel-concrete composite bridge; structural evolution; structural health monitoring
类别
资金
- Fundamental Research Funds for the Central Universities [2018JBZ106]
This study presents the structural health monitoring system of an I-shaped steel-concrete composite girder bridge during construction and vehicle load tests. The measured results showed that strains in the concrete slab and steel beams stabilized after an initial rapid change, indicating that the composite girder was in an elastic working state under the vehicle load tests. The research provides guidance for the construction control and safety evaluation of similar bridges in the future.
This study presents the structural health monitoring system of an I-shaped steel-concrete composite girder bridge during construction and vehicle load tests. Strains and deflections were monitored. A finite element model was built and calibrated. Vehicle load tests were carried out for various load conditions. Measured results show that the strains in the concrete slab and steel beams changed rapidly in the first 15 days and stabilized. The composite girder was in an elastic working state under the vehicle load tests. This research provides guidance for the construction control and safety evaluation of similar I-shaped steel-concrete composite bridges in the future.
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