Static load test and bearing capacity analysis of broken line pretensioned prestressed concrete I-beam.

ABSTRACT: The construction technology of broken line pretensioned method, which is suitable for long-span bridges, can greatly improve the flexural strength of concrete members. To study the mechanical performance and failure mode of broken line pretensioned prestressed concrete I-beam, an I-beam with a span of 30 m was taken as the research object and on-site static load tests were carried out. Based on the ABAQUS finite element software, the numerical simulation was carried out to analyze the mechanical properties and failure behavior of the I-beam under the concentrated load, and the ultimate flexural capacity of the I-beam was studied in combination with the theoretical analysis. In addition, the optimized arrangement of prestressed tendons was analyzed. The results show that in the on-site stat

SUBMITTER: Wang P 

PROVIDER: S-EPMC12316265 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature