Abstract
By directing at the current situation of excessive midspan deflection in prestressed concrete continuous bridge during the past few years, this paper raised a calculation method to elevate the pre-camber. Factors that affect bridge alignment after the bridge is completed were treated as uniform load, test data about the existing bridge were set as the basis, quartic polynomial function was adopted to fit the pre-camber of bridge under construction, and the following conclusions were gained through simulation analysis on the bridge: 1) During calculation for construction pre-camber, this method can overcome or weaken the situation of excessive midspan deflection when the bridge is at operation stage; 2) It can reduce detail analysis on displacement caused by concrete creep and automobile load after the bridge is completed; 3) Relevant parameters are introduced to calculate predicted value of midspan deflection and make calculation for empirical pre-camber more rigorous; 4) Its feasibility has been verified through calculation to guarantee load carrying safety in bridge construction and operation process, so it has relatively high promotion and application values.
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 callDisclaimer: 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.
