A beam-arch combination bridge has been put into operation for three years, and in the meantime, the cracks were found in different parts of the main beam, and the values of internal forces of the suspender had deviated from the design values. In this article, based on the checking and analysis on the practical situation of this bridge structure, and combined with the cases of this bridge structure inspected and tested several times by the third party, the internal forces and time-history variations of the suspender are analyzed theoretically, and then the theoretical analysis results are compared with the actually measured internal forces of the suspenders, so as to provide a reasonable reference for the segmental construction and operation maintenance of the similar bridge.
Railway Standard Design
beam-arch combination system
internal forces of suspender
actual measurement and analysis