The new strengthening method of hollow slab girder bridges by UHPC

Author(s) : C. Liu, H. Ji, J. Wang, P. Luo
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 675 - 682
Total Pages : 8
Language : English

Abstract: As a popular form of medium-small span bridge, prefabricated hollow slab girder bridges get hinged joints failure casually due to design defect and terrible construction quality. Hinged joints failure result in many cracks in the bridges and even much more serious situation that single slab bearing. With the accomplishment of highway systems in China, large amounts of concrete hollow slab girder bridges have a lot of diseases, and it is urgent to repair and strengthen that，but there is still no useful repair method. This paper propose UHPC thin layer strengthening method by example of repair and strengthening of Tongji overpass，and a finite element model is built by Midas FEA to analyze the failure mode of concrete hollow slab bridges, proves the superiority and feasibility of the UHPC paving layer strengthening method by studying the result of different schemes concludes: original bridge, normal strengthening scheme, UHPC strengthening scheme

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00