In France, the simultaneous introduction of new energy efficiency standards and the increased seismic requirements has pushed the concrete industry to develop innovative solutions for internally insulated buildings particularly at slab-to-wall connections. To effectively deal with thermal bridges, LEGENDRE CONSTRUCTION has developed a robust and ductile system, called SLABE, able to transfer the forces from the slab to the structural walls. It comprises reinforcing bars and one or two stainless steel Z-profiles crossing the thermal insulation used as shear keys, offering large resistance and ductility to the system under both vertical and horizontal actions. Thanks to a close collaboration between LEGENDRE Construction and INSA de Rennes, this product is now accredited for use in seismic areas, giving the company a valuable competitive advantage. This first successful experience paved the way to new innovative structural products, based on the same principle of combining steel sections and concrete, that LEGENDRE Construction and INSA Rennes intend to further explore for the benefit of the construction industry. The field of research and innovation of B-HYBRID will focus on developing new hybrid solution in which steel sections are embedded in concrete members with the aim to optimize the building structure. Hybrid structures have been investigated at INSA Rennes in the context of the European RFCS Project SMARTCOCO. The outcome of this project, which has ended by September 2015, is a design guide with a set of rules for the design of specific hybrid elements. This design guide will provide the background information for the evolution of the Eurocodes. However, the SMARTCOCO project has investigated typical hybrid structural elements that pertain to tall buildings or heavily loaded structures. Accordingly, the outcomes of the project are not directly applicable to typical standard buildings as solutions considered in the SMARTCOCO project have a large local density of rebars around the steel profiles which cannot be accommodated in flat slabs and walls of usual buildings for both economical and technological reasons. The first research direction of B-HYBRID is the extension of the results of SMARTCOCO to shear keys in usual buildings. The innovation supported by this research is the adaptation of the SLABE for a wider use. The second research direction is the search for new hybrid solutions. The fruitful collaboration initiated in 2011 between the structural team of GEOSAX of INSA Rennes, with a long research tradition in steel and composite structures, and LEGENDRE Construction, a concrete builder, is the coming together of two different technological worlds. This recent close collaboration and the interest of the company to the other research projects of GEOSAX on hybrid systems has stimulated the company creativity and new ideas for development have been put on the table, which are planned to be investigated within this project. The initial phase of the LabCom has allowed to develop a system of U-shaped concrete-steel hybrid beam, and to test it on site. The “consolidation” phasis will allow to go further in the investigation of this system, and to develop new systems, whom principles have been studied in the first phasis.