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Budownictwo i Inżynieria Środowiska

Budownictwo i Inżynieria Środowiska
2015.174, DOI: 10.7862/rb.2015.174

DISPLACEMENT AMPLITUDES OF FORCED VIBRATION IN DOUBLE-SLOPE SIN GIRDERS WITH SEMIRIGID JOINT

Witold BASIŃSKI

DOI: 10.7862/rb.2015.174

Abstract

Displacement amplitudes of forced vibration in SIN girders with semirigid joint
depend on the stiffness of the girder and the rotational stiffness of joints. Rotational
stiffness has a decisive effect on the overall integrated stiffness
of the girder. In addition, damping caused by semirigid joints produces differences
in the frequency and amplitude of vibration. Therefore, an analysis of oscillatory
motion in double-slope beams with corrugated web with semirigid joints
in the mid-span was conducted. On the basis of dynamic experimental testing
of three simply supported double-slope beams with corrugated web, rotational
stiffness was determined for six joints. Using the theoretical models, namely
the Kelvin-Voigt viscoelastic material and the standard one, differences in the displacement
amplitude behaviour, damping and forces were shown. The investigations
concerned girders with corrugated web for variable rotational stiffness
of the joints under the action of the assumed excitation force.

Full text (pdf)

References

[1] Basiński W. Determination of the rotational stiffness of semirigid end joints in metallic structures based on the measured vibrations. PhD thesis. Silesian University of Technology. Gliwice 2006 (in Polish).
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About this Article

TITLE:
DISPLACEMENT AMPLITUDES OF FORCED VIBRATION IN DOUBLE-SLOPE SIN GIRDERS WITH SEMIRIGID JOINT

AUTHORS:
Witold BASIŃSKI

AUTHORS AFFILIATIONS:
Silesian University of Technology

JOURNAL:
Budownictwo i Inżynieria Środowiska
2015.174

KEY WORDS AND PHRASES:
SIN girders, semirigid joints, rotational stiffness, viscoelastic material model

FULL TEXT:
http://doi.prz.edu.pl/pl/pdf/biis/437

DOI:
10.7862/rb.2015.174

URL:
http://dx.doi.org/10.7862/rb.2015.174

RECEIVED:
2015-05-30

COPYRIGHT:
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