A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental and analytical studies on flexural behavior of composite bridge decks with orthotropic steel deck and ultra-high-performance concrete (UHPC) slab under negative moment
Highlights A method is proposed to evaluate the flexural behavior of steel-UHPC composite bridge deck. Large-scale steel-UHPC composite bridge deck specimens are tested under negative moment. A polyline model is presented to represent cracked UHPC in steel-UHPC composite. Practical formulae are derived to facilitate design and evaluation of steel-UHPC composite.
Abstract Ultra-high-performance concrete (UHPC) has been used to enhance the mechanical behavior of orthotropic steel bridge decks through steel-UHPC composite actions. This research develops a method to evaluate the flexural behavior of steel-UHPC composite sections via experimental and analytical investigations. Four composite deck specimens were fabricated and tested to study the mechanical behaviors under negative moment along the transverse and the longitudinal directions. A polyline model is proposed to link the strain, crack width of UHPC, and the bearing capacity of steel-UHPC composite decks, considering the crack behavior of UHPC with different fiber contents. The polyline model is used to derive engineer-friendly formulae for the flexural behavior of composite decks. Results showed that the proposed method provided adequate predictions for the flexural behavior of composite decks in the evolution of the crack width in UHPC with different fiber contents.
Experimental and analytical studies on flexural behavior of composite bridge decks with orthotropic steel deck and ultra-high-performance concrete (UHPC) slab under negative moment
Highlights A method is proposed to evaluate the flexural behavior of steel-UHPC composite bridge deck. Large-scale steel-UHPC composite bridge deck specimens are tested under negative moment. A polyline model is presented to represent cracked UHPC in steel-UHPC composite. Practical formulae are derived to facilitate design and evaluation of steel-UHPC composite.
Abstract Ultra-high-performance concrete (UHPC) has been used to enhance the mechanical behavior of orthotropic steel bridge decks through steel-UHPC composite actions. This research develops a method to evaluate the flexural behavior of steel-UHPC composite sections via experimental and analytical investigations. Four composite deck specimens were fabricated and tested to study the mechanical behaviors under negative moment along the transverse and the longitudinal directions. A polyline model is proposed to link the strain, crack width of UHPC, and the bearing capacity of steel-UHPC composite decks, considering the crack behavior of UHPC with different fiber contents. The polyline model is used to derive engineer-friendly formulae for the flexural behavior of composite decks. Results showed that the proposed method provided adequate predictions for the flexural behavior of composite decks in the evolution of the crack width in UHPC with different fiber contents.
Experimental and analytical studies on flexural behavior of composite bridge decks with orthotropic steel deck and ultra-high-performance concrete (UHPC) slab under negative moment
Bu, Yizhi (author) / Li, Mingzhe (author) / Wei, Chuan (author) / Cheng, Zhenyu (author) / Cui, Chuang (author) / Bao, Yi (author)
Engineering Structures ; 274
2022-01-01
Article (Journal)
Electronic Resource
English
Steel-concrete-UHPC (Ultra High Performance Concrete) combined bridge deck slab
| European Patent Office | 2022
Flexural behavior of corrugated steel-UHPC composite bridge decks
| Elsevier | 2021
Construction method of steel-UHPC (Ultra High Performance Concrete) combined bridge deck slab
| European Patent Office | 2024