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DOI: 10.15862/05TS216 (https://doi.org/10.15862/05TS216)

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Semenov A.A., Poryvaev I.A., Akhmetdinova G.R. [Analysis of the stress-strain state of the Forth Rail Bridge structures] Russian Journal of Transport Engineering, 2016, Vol. 3, No. 2. Available at: https://t-s.today/PDF/05TS216.pdf (in Russian). DOI: 10.15862/05TS216

Analysis of the stress-strain state of the Forth Rail Bridge structures

Semenov Aleksandr Aleksandrovich
Ufa state petroleum technological university, Russia, Ufa
E-mail: asfugntu@yandex.ru

Poryvaev Ilya Arkadievich
Ufa state petroleum technological university, Russia, Ufa
E-mail: iporivaev@gmail.com

Akhmetdinova Gulnara Rishatovna
Ufa state petroleum technological university, Russia, Ufa
E-mail: g.ahmetdinova@mail.ru

Abstract. In the Russian and foreign practices of building design a finite-element method is widely used in the analysis of the stress-strain state of both new construction and existing structures. Of special interest is the modeling and analysis of structures, designed for objective reasons without the use of software systems, but in the meantime, presenting the historical and cultural value. The cantilever Forth Rail Bridge built from 1882 till 1890 across the bay Firth of Forth is precisely this object.

The purpose of this article is to analyze the stress-strain state of the Forth Rail Bridge on the finite-element model created using the Scad Office software system.

The following tasks were set and implemented to achieve the desired results:
1. to create a calculated finite-element model with the appropriate stiffness characteristics, bonds and loadings;
2. to calculate and get the stress-strain state of the computational model;
3. to compare the obtained results with the current regulations and to assess compliance of designs being studied with the modern standards.

This example of calculation of the Forth Rail Bridge construction in the Scad Office software system confirms that the application of software programs is indispensable when analyzing the existing buildings and structures and reconstructing them in future. The obtained results clearly illustrate the «weak spots» or, on the contrary, reveal a safety margin in the elements, which allow to minimize the economic costs when reconstructing historical objects.

Keywords: railway bridge; cantilever; finite-element method; a Scad Office software system; stress- strain state; stiffness; 3D model; load; wind forcing; piers

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