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Analysis of plastic bearability of plates
Rozsypalová, Veronika ; Hradil, Petr (referee) ; Němec, Ivan (advisor)
The subject of this thesis is analysis of the plastic bearability of plates. The first part is dedicated to a description of pertinent theories. It is primarily a theory of material nonlinearity and plasticity, including a description of plasticity models, which are commonly used in engineering analysis. Next is the hinted theory of geometric nonlinearity and discusses the key principles of limit plastic bearability of plates. This thesis includes ultimate strength calculations of plates of selected shapes, their solution by both, a manual calculation and using computational software. The obtained values are subsequently evaluated. The appendices contain the procedures for modelling in the computational programs RFEM and ANSYS.
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Application of SBRA method in the framework of probabilistic assessment of a supporting system which consist of slender steel-concrete columns
Pustka, David ; Čajka, R. ; Marek, Pavel
Modern reinforced concrete structural systems, consisted of various slender members (i.e. columns, piers, frame legs, etc.), are used more frequent than ever. Effects of external forces on these structures are significantly dependent on their deformations. Reliability assessment of such structures should be thus based on equilibrium of internal and external forces acting on deformed structures. One of these methods is also SBRA (Simulation-Based Reliability Assessment) method, documented in e.g. [1], [2], [3], [8]. Potential of this method is briefly outlined in the study dealing with the reliability analysis of a structural system made by slender reinforced concrete columns. This study is introduced in the full version of this paper stored on the enclosed CDROM.
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Nonlinear models of suspension bridges
Malík, Josef
Some results concerning the geometric nonlinearity connected with torsion and bending of a road bed is analyzed. The basic nonlinear variational equations derived from principle of minimum energy are proposed.
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