Field measurement and practical design of a lightweight composite bridge deck. (August 2018)

• Record Type: Journal Article
• Authors: Pei, Bida; Li, Lifeng; Shao, Xudong; Wang, Lianhua; Zeng, Yan
• Is Part Of: Journal of constructional steel research. Volume 147(2018)
• Page Start: 564
• Page End: 574
• Publication Date: 2018-08
• Subjects: Orthotropic steel deck -- Ultrahigh-performance concrete (UHPC) -- Lightweight composite bridge deck -- Detail categories -- Field measurements -- Stress range; Steel, Structural -- Periodicals; Building, Iron and steel -- Periodicals; Acier de construction -- Périodiques; Construction métallique -- Périodiques; 624.1821
• DOI: 10.1016/j.jcsr.2018.05.005
• Languages: English
• ISSNs: 0143-974X

Abstract

Abstract: Ultrahigh-performance concrete (UHPC) layers play an important role in steel-UHPC lightweight composite bridge decks. To characterize the contribution of the UHPC layer to these decks, field measurements were conducted, and the strain responses of various detail categories were measured for orthotropic steel decks with and without UHPC layers. The results show that the UHPC layer influences the stress range of the various detail categories significantly. ANSYS software was also applied to model the lightweight composite bridge deck, and a transient analysis was performed to investigate the influence of the vehicle speeds. Finally, the influence surfaces of the detail categories were introduced to determine the variation of the stress range, and a simple method was proposed to design the UHPC layer. Highlights: Field measurements were conducted for orthotropic steel decks with and without UHPC layers. The contribution of UHPC layer to the lightweight composite bridge deck was investigated. Numerical simulations are carried out for various thicknesses of UHPC layer and deck plate. A simple method was proposed to determine the thickness of the UHPC layer of the lightweight composite bridge deck.