Abstract
In order to further study the full-range mechanical behavior of the curved and small-and-medium span twin-I steel girder composite bridges, the combination of experimental verification and numerical analysis was used to study the stability safety at construction stage and ultimate strength at finished stage of the curved continuous composite beam of 35m standard span. Firstly, using the experimental data in the literature, the ABAQUS nonlinear numerical model was verified from the aspects of failure load and mid-span deflection. Secondly, the stability safety factor and the ultimate live load coefficient were used as indicators to compare and evaluate the mechanical performance of the full bridge structure with different spans and different curvature radius. The results show that the stability safety of three-span bridge improved obviously compared with the simply supported beam, but ultimate strength of bridges with different spans is similar at finished step. The stability safety and ultimate bearing capacity increased with the increase of the radius during the whole process. When the curvature radius is greater than 460m, the bearing capacity is significantly improved. According to the difference of live load coefficient of inner and outer curved girder, the design could be referred to different inner and outer girder height.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
