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Budownictwo i Inżynieria Środowiska

Budownictwo i Inżynieria Środowiska
2014.25, DOI: 10.7862/rb.2014.25

MINIMUM WEIGHT DESIGN OF COMPOSITE FLOORS UNDER HUMAN INDUCED VIBRATIONS

Bartlomiej BLACHOWSKI, Witold GUTKOWSKI

DOI: 10.7862/rb.2014.25

Abstract

The paper is concerned with a minimum weight design of composite floors subjected to dynamic loading, deriving from the rhythmic activity of a group of people. The floor structure consists of concrete slab cast, on thick trapezoidal deck, which is supported by a grid of steel beams. The structure is vibration-prone and exhibits a number of natural frequencies, which are within a range of loading function. Mini-mum weight design consists in assigning, from catalogues of prefabricated plates and beams appropriate elements assuring fulfillment of imposed constraints on dis-placements and accelerations. Applied, practical discrete optimization method is based on graph theory and finite element analysis. Efficiency of the proposed de-sign is demonstrated in an example of real-world engineering structure.

Full text (pdf)

References

[1] Bachmann H. and Amman W.: Vibrations In Structures: Induced by Man and Machines, IABSE, 1987.

[2] Blachowski B., Gutkowski W..: A hybrid continuous-discrete approach to large discrete structural optimization problems, Structural and Multidisciplinary Optimization, vol. 41, Issue 6, 2010, pp.965-977.

[3] Blachowski B., Gutkowski W.: Graph based discrete optimization in structural dynamics, Bulletin of the Polish Academy of Sciences, Technical Sciences, Vol. 62, No. 1, 2014, pp.91-102.

[4] BS 6472:1992 Guide to evaluation of human exposure to vibration In building (1 Hz to 80 Hz), British Standards Institution, 1992.

[5] ISO 10137 Bases for design of structures – Serviceability of buildings against vibration, International Organisation for Standardization, 2007.

[6] Smith A.L., Hicks S.J., Devine P.J., Design of floors for vibration: A new approach, Revised Edition, SCI Publication P354, 2009.

About this Article

TITLE:
MINIMUM WEIGHT DESIGN OF COMPOSITE FLOORS UNDER HUMAN INDUCED VIBRATIONS

AUTHORS:
Bartlomiej BLACHOWSKI (1)
Witold GUTKOWSKI (2)

AUTHORS AFFILIATIONS:
(1) Institute of Fundamental Technological Research
(2) Institute of Mechanised Construction and Rock Mining

JOURNAL:
Budownictwo i Inżynieria Środowiska
2014.25

KEY WORDS AND PHRASES:
structural optimization, discrete optimization, structural vibrations, composite floor structure

FULL TEXT:
http://doi.prz.edu.pl/pl/pdf/biis/104

DOI:
10.7862/rb.2014.25

URL:
http://dx.doi.org/10.7862/rb.2014.25

RECEIVED:
2014-04-24

ACCEPTED:
2014-09-04

COPYRIGHT:
Publishing House of Rzeszow University of Technology Powstańców Warszawy 12, 35-959 Rzeszow

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