While calculating internal forces of a structure resulting from temperature it is necessary to know thermal conduction and what goes hand in hand to determine temperature…
Abstract
While calculating internal forces of a structure resulting from temperature it is necessary to know thermal conduction and what goes hand in hand to determine temperature distribution at various points of the analysed structures. Finite strip method (FSM) is very suitable for the analysis of thermal conduction, heating, heat and temperature distribution in engineering structures, especially rectangular of identical edge conditions. The paper presents several examples of FSM application for the analysis of conduction and heat and temperature distribution for various types of engineering structures which can appear, among others, while welding several joined elements with welds made at specified speed as linear and point welds. Bars, shields, square and rectangular plates, steel orthotropic plates, steel and combined girders (steel‐concrete), box girders subject to various loads connected with heat and temperature (loaded with temperature, non‐uniformly heated surface). The obtained results may be useful in engineering practice for determining actual temperature and load capacity in individual elements of the construction.
Steel orthotropic bridge deck plates have a remarkable reserve of carrying capacity which should usefully be studied further in practice. This paper shows the application of the…
Abstract
Steel orthotropic bridge deck plates have a remarkable reserve of carrying capacity which should usefully be studied further in practice. This paper shows the application of the finite strip method to the non‐elastic analysis of such plates with arbitrary cross‐sections of the longitudinal ribs (open and closed). It should be underlined that the application of this method is partly limited and approximate; however, some known advantages of this method in some cases are particularly beneficial. The constitutive equations are deduced on the basis of the Prandtl—Reuss theory of plastic flow and the von Mises criterion of flow for the elastic‐ideal plastic material. The methods of variable stiffness of initial distortion, which requires only once stating the stiffness matrix, were used. The calculations were made for two models of such plates for two different load schemes. The results obtained in this way were verified by the experimental investigations of four models of such plates on the big scale (the investigations were made in 1973) and quite good convergency of results in the studied range were obtained.