Numerical identification of the dynamic characteristics of a steel-concrete railway bridge

The paper presents selected aspects of dynamie numerical simulations of an orthotropic steel raił way bridge loaded by high-speed trains. The model of moving loads was adopted in accordance with the models set out in the applicable standards. The current European code requirements are referred in which the computer calculations of the dynamie response of the structure are the bas is for assessing the suitability of the structure to carry high-speed raił traffic ( v > 160 km/h ). In this research the calculations are based on the author's method of generating traffic loads in Abaqus FEM environment. lt is emphasized in the paper that in most commercial FEM codes (including Abaqus), moving loads are not implemented in modules responsible for defining of loads. The author's approach to this issue allowed to obtain results confirming its adequacy. In the longer term, the authors will develop a plan to adapt this algorithm in order to generale traftic loads on bridges discretized as spatial and piane numerical models.

show abstract

Dynamics of an Orthotropic Railway Bridge in the Light of European Standards

Zbiciak

Oleszek

Michalczyk

2016

Archives of Civil Engineering

View full text Add to dashboard Cite

show abstract

Dynamic Analysis of an Existing Arch Railway Bridge According to Eurocodes

Oleszek¹,

Radomski²

2016

Archives of Civil Engineering

View full text Add to dashboard Cite

Modern regulations concerning railway bridges are based on the approach of structural dynamics, which is described in PN-EN standards. This paper presents the results of theoretical dynamic analysis of the HSLM-A train set loading on the structure of a pre-stressed concrete arch bridge -the first railway bridge of its type which was built in Poland (completed in 1959). The recommendations of PN-EN have been followed and modal analysis was carried out to define the sensitivity of the structure to chosen eigenforms. Additionally the paper presents a course of calculations and the conclusions obtained from the analysis of displacements, accelerations, and bending moments induced in the structure through a simulated passage of a high-speed train in the context of the requirements of PN-EN Standards. The conclusions from the current calculations can be used for dynamic analysis of bridges of similar structural solutions.

show abstract

Finite element analysis of train speed effect on dynamic response of steel bridge

2021

View full text Add to dashboard Cite

The development of materials engineering has facilitated the design of slender, light bridges replacing standard construction materials with others, which fulfil their purpose both in terms of structural behaviour and safety. This article focuses on the presentation of the problems related to the modelling of bridges and their loads modelling train passages, as well as an analysis of the influence of load parameters on the dynamic response of a structure. The problem has become essential with the development of materials engineering which enabled the design of slender and light bridges according to the assumptions of sustainable development. The article contains a number of numerical analyses which allowed the verification of the developed finite element bridge model (frame and plate-frame types) in terms of the possibility of using them at the design stage. The load was modelled as a system of concentrated forces, the so-called moving load (ML) model. The results obtained from theoretical analyses were compared with in situ measurements of the existing bridge subjected to the load variable in time (set of locomotives ST43 and ST45 and locomotive EP09). It has been found that in dynamic analysis, modelling of the load is essential. A simplified load model such as ML can be used when displacement values are the only results analysed in detail. ML and finite element plate and frame models give high accordance of the displacement results.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Numerical identification of the dynamic characteristics of a steel-concrete railway bridge

Cited by 7 publications

References 3 publications

Dynamics of an Orthotropic Railway Bridge in the Light of European Standards

Dynamics of an Orthotropic Railway Bridge in the Light of European Standards

Dynamic Analysis of an Existing Arch Railway Bridge According to Eurocodes

Finite element analysis of train speed effect on dynamic response of steel bridge

Contact Info

Product

Resources

About