The objective of this research project is to develop a bolt-based standard connection system for precast concrete element building frames, which can be used with conventional reinforced concrete as well as with pre-stressed elements made of high-strength concrete. The typical connection parts are anchor bolts, column shoes (column-to-foundation) and console structures (beam-to-column). Through the laboratory and full scale testing the functions of the connections and the calculation model will be evaluated. In addition, a design software for this system will be developed. The research project aims, in the long run, at European standards. The connection system to be developed in the research project represents the newest technology in Europe. In the new connection system the capacity and the stiffness level of the connection will be defined so, that the connection sustains heavy loads and the connection can be utilized in dimensioning as part of the frame. As the future frame constructions sustain better bending moments, the structures get slimmer and the fixing lighter. Claimed innovative aspects of this proposal include: Because the frame sustains vertical and lateral loads, both conventional and high strength concrete may be used in the frame structures in a new, more effective way. Level of automation, robotics, new welding technology and computer integration may be increased in the connection part production to a new higher level. A design software, which will make the design phase more effective, will be introduced. in the long run, European standards will be developed.