Details

Autor(en) / Beteiligte

• Chen, Yiyan
• Dong, Jucan
• Xu, Tianhua

Titel

Composite box girder with corrugated steel webs and trusses – A new type of bridge structure

Ist Teil von

• Engineering structures, 2018-07, Vol.166, p.354-362

Ort / Verlag

Kidlington: Elsevier Ltd

Erscheinungsjahr

2018

Link zum Volltext

Quelle

ScienceDirect Journals (5 years ago - present)

Beschreibungen/Notizen

• •Two composite box girder bridges with CSWs and trusses are presented in detail.•The flexural behavior of a composite box girder with CSWs and trusses was studied.•Good integrity and ductility are shown in this kind of structure.•The assumption of plane sections remaining plane is not valid for the whole section. Composite box girders with corrugated steel webs and trusses is a new type of advanced bridge structure proposed recently. This kind of structure consists of a top concrete slab, corrugated steel webs and two bottom concrete-filled steel tubes connected by trusses. The resistance to torsion and overturning of this kind of structure is larger than that of composite bridges with a single concrete-filled steel tube. This kind of structure is able to satisfy the requirement of rapid construction, environment protection and cost effectiveness. Two composite box girder bridges with corrugated steel webs and trusses have been or are being constructed in China. This paper presents the design of these two bridges in detail, which will provide valuable engineering experience for the further promotion of this kind of new bridge structure. Experimental research has been carried out to study the flexural behavior and the flexural capacity of this kind of new bridge structure. The test results show that when the test beam is at the elastic stage, the cross-section can be viewed as a plane section if only the strains of the concrete top slab and the bottom steel tubes are considered. The test beam shows good ductility throughout the whole loading process.