Fatigue Tests of New Assembly Bolt Connections for Perspective Temporary Steel Railway Bridges
The paper deals with the problems of the actual
behavior, failure mechanism and load-carrying capacity of the special
bolt connection developed and intended for the assembly connections
of truss main girders of perspective railway temporary steel 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 behavior, strain and failure mechanism and
corresponding strength of the connection, and on its numerical
modeling using FEM. This paper is focused only on the cyclic
loading (fatigue) tests results of “splice-plate” connections and their
evaluation, which have already been finished. Simultaneously with
the fatigue tests, the static loading tests have been realized too, but
these ones, as well as FEM numerical modeling, are not the subject of
 M. Karmazínová and M. Štrba, “Static loading tests of new type of bolt
assembly connection developed for perspective temporary steel railway
bridges”, Applied Mechanics and Materials, Trans Tech Publications:
Zurich, Vol. 590, 2014, pp. 331-335, doi: 10.4028/www.scientific.net/
AMM.590.331. ISSN 1660-9336.
 M. Karmazínová, “Fatigue tests of assembly joints of truss main girders
of temporary footbridge for pedestrians and cyclists”, Applied
Mechanics and Materials, Trans Tech Publications: Zurich, Vol. 405-
408, 2013, pp. 1598-1601, doi: 10.4028/ www.scientific.net/AMM.405-
408.1598. ISSN 1660-9336.
 M. Karmazínová and 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.
 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, pp. 73-80. ISSN 1998-4448.
 M. Karmazínová and J. Melcher, “Material testing and evaluation of
steel mechanical properties for classification of steel grade of existing
civil engineering structure”, Advanced Materials Research, Trans Tech
Publications: Zürich, Vol. 651, 2013, pp. 274-279, doi: 10.4028/www.
scientific.net/AMR.651.274. ISSN 1022-6680.
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and experience”, In Structural Assessment – The Role of Large and Full
Scale Testing, E & FN SPON, London 1997, pp. 301-308.
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evaluation of material properties and design resistances from test
results”, International Journal of Mathematical Models and Methods in
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assisted by testing (2nd Edition), CEN Brussels, 2011.
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Rules and Rules for Buildings, CEN Brussels, 2008.
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