DBPapers
DOI: 10.5593/SGEM2016/B53/S21.065

ROBUSTNESS A CONCEPT IN CASE OF HISTORIC BRIDGES. ECONOMICAL STUDIES REGARDING REHABILITATION AND ROBUSTNESS.

S.Hernea, A.Feier, M.N.Filimon, I.Ciortea, M. Buzdugan
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-67-4 / ISSN 1314-2704, June 28 - July 6, 2016, Book5 Vol. 3, 509-514 pp

ABSTRACT
The robustness of the structures is and will be quite a problem, especially at structures in operation. Analyzing in terms of robustness a structure in operation it can be done some economic studies and it can be decide if the structure should be rehabilitated or not, or if the cost is correctly compared to its function. Robustness should not be understood as an oversize items but the capacity of the system to adapt to current actions without degradation and impaired the minimum extraordinary, but without causing the collapse.
This paper will presents some critical situation and some scenarios regarding robustness of historical bridges. Robustness structures is a topic addressed by engineers and researchers especially in recent decades, after the occurrence of structural failure publicized worldwide: the collapse of the collapse twin towers in 2001. Following this event, significant activity was initiated research various aspects of robustness resulting in a number of useful recommendations, more qualitative and less quantitative, on achieving sustainable structures and increased safety in exploitation.
When structure fails, the subsequent consequences can be severe, resulting in loss of life, damage to environmental quality and economic losses to society.

Keywords: robustness of the structures, critical situation, historical bridges, Risk-probability - consequences