Publication details

Composite bridge design for small and medium spans

Composite bridge design for small and medium spans

Final report

Bridges with span lengths of 15 to 30 m have been mostly built as concrete bridges due to the fact that the superstructure only represents a small part of the total construction works for the main contractor who deals with concrete foundations (piers and abutments) and therefore tends to maintain the building technique to wich he is accustomed. In the frame of this project, new concepts for the design of easily buildable composite bridges have been developed wich are attractive for being executed by the main contractor without problems on site. The composite bridge concepts being developed cover the span range of about 15 to 50 m, to extend the traditional span lengths of composite bridges for small and medium spans. Therefore, the new concepts cover about 75% of all span requirements for road bridges. Particular features of these new concepts are the sufficient robustness for execution, cost effectiveness, durability in use and a minimum of construction time realised by the following means : - on-site construction problems are avoided by applying light-weight steel elements (e.g. hybrid girders) that can easily be mounted by mobile cranes without propping and do not need welding on site ; - use of alternative levels of prefabrication of concrete slabs : fully and partially prefabricated elements. The performed test programme for the investigations has been divided into five main working items : - serviceability limits and fatigue for hybrid girders ; static and dynamic push-out tests of studs of 25 mm and dismountable shear connectors ; - behaviour of joints of slabs for full and partial prefabricated elements ; - fatigue tests on special joints in the span and on the middle support of composite girders ; plate buckling for slender and stocky webs of steel and composite girders. Furthemore, a software for the pre-design of composite bridges has been developed wich has been introduced in a design guide for composite bridges

Corporate author(s):
Directorate-General for Research and Innovation,
European Commission
Private author(s):
Gerhard Sedlacek,
B Hoffmeister,
H Trumpf
Themes:
Research policy and organisation,
Industrial research and development
Target audience:
All
Key words:
applied research,
steel,
engineering structure,
concrete

PDF

Details Identifiers Catalogue number Price
 

Publication year: 2003

 

ISBN: 92-894-4814-8

 
KI-NA-20-583-EN-S Free

PAPER

Details Identifiers Catalogue number Price
Unavailable  

Pages: 525 _

Weight: 1 308 g

Publication year: 2003

 

ISBN: 92-894-4814-8

 
KI-NA-20-583-EN-S € 79.00