An analysis of stiffness of bolted end-plate I-beam connection is presented. The analysis was done using a finite element method computer model and program ADINA (Automatic Dynamic Incremental Nonlinear Analysis, ADINA R & D Inc., USA). The program ADINA allows considering large strain elasto-plasticity. Analysis was performed using computer 'workstation' SUN Enterprise 3000. All parts of the connection were modelled, including washers. Calculations for six variants of connection were done. The results show that the way of developing the computer model is correct and that it is possible to use such models to obtain for example moment-rotation curves for joints.
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