experiment set-up Urheberrecht: © STB

Large web openings for service integration in composite floors

Short description

Currently, no design recommendations exist at a European level to permit design of large web openings in composite beams without particular tests for the individual purpose. Within this project the following issues concerning steel and composite beams and composite floors with web openings have been studied by tests and theoretical investigations:

- behaviour under normal conditions (effects from web buckling, bending resistance, shear resistance, additional deflection from the
web openings, effects of local composite action)
- behaviour under fire conditions including the effects from fire protection
- improvement of the manufacturing process of beams with single and regular web openings

On the basis of the results from the experimental and theoretical investigations design recommendations as well as simplified design aids have been elaborated. Further on a computer software for the design of steel and composite beams with single web openings has been developed.

Reserach program

RFCS - Research Fund for Coal and Steel


CTICM - Centre Technique Industriel de la Construction Métallique - France

PROFILEARBED-Research - Luxembourg

SCI - Steel Construction Institute - United Kingdom

Luleå University of Technology - Division of Steel Structures - Sweden

Universität Kaiserslautern

Duration of project

07/2001 - 12/2003