Psotný, M.

Prelomenie vzperadla a oblúka

Abstract eng:
Geometrically non-linear solution of selected beam structures is analyzed and snap-through effect is presented in this article. Basic assumptions are specified and incremental conditional equations are derived. Newton-Raphson iteration is used. First part of the paper studies the importance of nonlinear members in geometric equation and their effect upon the result of the solution. The solved examples of Misses truss and shallow arch are presented and different approaches to the solution are compared. Numerical results of specific shallow arch are presented in second part of paper. Ideal shape of arch was solved first, results are compared with analytical solution. Individual loading paths are investigated and their total potential energy values are compared. Arch with different values of the initial geometrical imperfections was solved later, and influence of these imperfections on load-carrying capacity is presented.

Publisher:

Slovak University of Technology in Bratislava, Faculty of Civil Engineering, 2008

Conference Title:

70 Years of FCE STU - Proceedings of the International Scientific Conference

Conference Title:

International Scientific Conference 70 Years of FCE STU

Conference Venue:

Bratislava (SK)

Conference Dates:

2008-12-04 / 2008-12-05

Rights:

Text je chráněný podle autorského zákona č. 121/2000 Sb.