ANALYSIS BY THE MIXED METHOD OF STATICALLY INDETERMINATE FRAMES WITH ELEMENTS OF INCREASED RIGIDITY AND NUMERICAL VERIFICATION OF THE CALCULATION RESULTS USING THE FINITE ELEMENT METHOD
Abstract and keywords
Abstract (English):
The sequence of application of the mixed method for calculating internal forces in statically indeterminate frames with elements of increased rigidity is given. The main system is chosen for the frame with one kinematic and one force unknown. The canonical equations of the mixed method are written, taking into account their meaning. Completed the construction of the final diagram of the bending moments and all the necessary calculations and checks. When calculating integrals, Vereshchagin's rule is applied. The solution of the problem is checked by performing the calculation using the computer program STAB12.EXE; the results of the calculations are numerically verified using the finite element method. An example of the formation of the initial data for the STAB12.EXE program and the subsequent processing of the calculation results, the rules for comparing the numerical results and the results obtained in the calculation of the frame by the mixed method are given.

Keywords:
Mixed method, force method, displacement method, frame calculation, statically indeterminate frames, finite element method, diagrams, dangerous internal forces
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