Static Loading Tests of New Type of Bolt Assembly Connection Developed for Perspective Temporary Steel Railway Bridges

Abstract:

The paper deals with the problems of the actual behaviour, failure mechanism and load-carrying capacity of the special bolt connection developed and intended for the assembly joints of the truss main girders chords of perspective railway steel temporary bridges. Within the framework of this problem solution, several types of structural details of assembly joints have been considered as the conceptual structural design. Based on the preliminary evaluation of advantages or disadvantages of these ones, in principle two basic structural configurations – so-called “tooth” and “splice plate” connections have been selected for the subsequent detailed investigation. This investigation is mainly based on the experimental verification of the actual behaviour, strain and failure mechanism and corresponding strength of the connection, and on its numerical modelling using FEM. This paper is focused only on the static loading tests results of the splice plate connections and their evaluation, which have already been finished. Simultaneously with the static tests, the fatigue loading tests are being realized, too, but they have not been finished so far, as well as the FEM numerical modelling.

• Periodical: Applied Mechanics and Materials (Volume 590)
• Pages: 331-335
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.590.331
• Online since: June 2014
• Authors: Marcela Karmazínová, Michal Štrba*
• Keywords: Bolt Assembly Connection, Experiment, Load-Carrying Capacity, Static Loading, Steel Structure, Temporary Railway Bridge, Test

References

[1] M. Karmazínová, P. Simon, Fatigue tests of assembly joints of truss main girders of newly developed temporary footbridges, International Journal of Mechanics, NAUN: U.S.A., Vol. 7 (2013), Issue 4, pp.475-483. ISSN 1998-4448.

DOI: 10.4028/www.scientific.net/amm.405-408.1598

[2] M. Štrba, On the problems of testing methodology used in case of the temporary steel through truss footbridge development, International Journal of Mechanics, North Atlantic University Union: U.S.A., Issue 2, Vol. 7 (2013).

[3] M. Karmazínová, Structural design of newly developed temporary footbridge, Applied Mechanics and Materials, Trans Tech Publications: Zurich, Vol. 405-408 (2013), pp.1623-1626, doi: 10. 4028/ www. scientific. net/AMM. 405-408. 1623. ISSN 1660-9336.

DOI: 10.4028/www.scientific.net/amm.405-408.1623

[4] M. Karmazínová, Design assisted by testing – a powerful tool for the evaluation of material properties and design resistances from test results, International Journal of Mathematical Models and Methods in Applied Sciences, Vol. 6, No. 2 (2012).

[5] EN 1990 Basis of Structural Design: Annex D – Design assisted by testing (2nd Edition), CEN Brussels (2011).