In view of the difference between the calculation formulas of flexural bearing capacity of segmental assembled beams proposed by related codes and standards at home and abroad,the research on the calculation of flexural bearing capacity of segmental assembled beams was carried out based on the static load test result of segmental assembled simply-supported beams.The results show that among the various design codes and standards,the calculation results of China railway code are closest to the ultimate flexural bearing capacity,while the calculation results of highway code are relatively conservative.The calculation results of American bridge design code are basically equivalent to those of railway code.The calculation formula for the flexural bearing capacity of the normal section of the integral beam given by the railway and highway codes can be used in the solid section and joint section of the concrete segmented assembled beam,and the calculation results are relatively safe.The influence of ordinary steel bars in the solid section on the calculated flexural bearing capacity is about 3％.When calculating the flexural bearing capacity of segmental assembled beam,strength reduction is not considered in the mid-span and joint sections.
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