In order to develop a rational analysis that would maximize the use of this technology, extensive laboratory testing and analysis was undertaken. This included both small-scale specimens and full-scale assemblies in order to simulate actual bays. Each assembly was load tested well above code required residential live loads. The D-BEAM® girder performed without failure even at these higher loads.
Recent, more sophisticated testing enabled us to develop an LRFD approach to the GIRDER-SLAB® system. Design Guide v3.3 improves upon the previously established structural and economical benefits of the GIRDER-SLAB® system. With simplicity in mind, new D-BEAM® girders have been introduced while others, less commonly used, have been eliminated.
The GIRDER-SLAB® system integrates easily with lateral resisting steel braced frames, and concrete or masonry shear walls.