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Mathematical Problems in Engineering
Volume 2017, Article ID 9324520, 11 pages
https://doi.org/10.1155/2017/9324520
Research Article

Experimental and Analytical Investigation of Deformations and Stress Distribution in Steel Bands of a Two-Span Stress-Ribbon Pedestrian Bridge

1Department of Bridges and Special Structures, Vilnius Gediminas Technical University (VGTU), LT-10223 Vilnius, Lithuania
2Research Laboratory of Innovative Building Structures, VGTU, LT-10223 Vilnius, Lithuania

Correspondence should be addressed to V. Gribniak; tl.utgv@kainbirg.rotkiv

Received 1 February 2017; Revised 9 April 2017; Accepted 30 April 2017; Published 29 May 2017

Academic Editor: Fabrizio Greco

Copyright © 2017 G. Sandovic et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The article is dedicated to the analysis of problems related to design of pedestrian bridges with flexible ribbon bands made of steel. The study is based on test results of a bridge model that has two spans (each with a length of five meters). A simplified analytical technique has been proposed for predicting vertical deformations of the bridge structure subjected to symmetrical or asymmetrical loading patterns. The technique also allows assessing the tension forces in the ribbons, which are very important for design of such structures. The analysis reveals the importance of the flexural rigidity of the ribbons that might cause significant redistribution of stresses within the steel bands.