engleski

The Guidelines for Modelling the Preloading Bolts in the Structural Connection Using Finite Element Methods

The aim of this paper is the development of the two different numerical techniques for the preloading of bolts by the finite element method using the software ABAQUS Standard. Furthermore, this paper gave a detail guidelines for modeling contact, method for solving the numerical error problems such as numerical singularity error, negative eigenvalues due to rigid body motion or the problem of the extensive elongation of bolts after pretension which is occurring during the analysis. The behavior of bolted joints depending on the two different approaches of pretension was shown on the example of an extended end-plate bolted beam-to-column connection under the monotonic loading. The behaviour of beam-to-column connection was shown in the form and moment-rotation (M-ϕ) curves, and validate by experimental test. Advantages and disadvantages of pretension techniques, as well as the speed of numerical models was also presented in this paper.

preload bolt; numerical finite element method; numerical error; beam-to-column connection

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