Working Example on 70m Long Ultra High Performance Fiber-Reinforced Concrete (UHPFRC) Composite Bridge

14th International Conference on Concrete Engineering and Technology

Tan, Jasson^1 ; Voo, Yen Lei^1,2

Dura Technology Sdn. Bhd., SO-13-8, Menara 1, No.3, Jalan Bangsar, KL Eco City, Kuala Lumpur

59200, Malaysia^1

School of Civil and Environmental Engineering, University of New South Wales, Australia^2

关键词: Composite sections;    Construction loads;    Conventional concrete;    Mid-span displacements;    Moment resistance;    Structural analysis softwares;    Ultra high performance fibre reinforced concretes;    Ultra-high-performance fiber-reinforced concrete;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/431/4/042005/pdf
DOI  :  10.1088/1757-899X/431/4/042005

来源: IOP

【 摘 要 】

In 2016 the Association Francaise de Normalisation (AFNOR - French Standard Institute) has published the world first design standards for ultra-high-performance fibre reinforced concrete (UHPFRC) structures (i.e. NF P18-710:2016). This document is the national additional to Eurocode 2 for concrete structure design. To-date, there are several UHPFRC bridges have been designed using this standard. The design approach for UHPFRC structures are relatively similar to conventional concrete design. This paper presents the working example on the design of 70m span ultra-high-performance fibre reinforced concrete (UHPFRC) composite bridges. The working example mainly focus on (i) the material properties used in the structural analysis software - MIDAS CIVIL; (ii) the output results on the design forces at the critical sections (i.e. design moment effect, MEd and shear force effect, VEd); (iii) the stresses and midspan displacement of the post-tension UHPFRC U-girder at transfer and at different construction load historyand (iv) the design moment resistance (MRd) and design shear resistance (VRd) of the composite section.