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railway bridges

Analysis of the Effect of Soil Structure Interaction on the Response of Railway Bridges using Boundary Element   Finite Element Methods

Analysis of the Effect of Soil Structure Interaction on the Response of Railway Bridges using Boundary Element Finite Element Methods

... simply-supported railway bridges under convoy cir- culations and, especially, the effect of soil structure interaction (SSI) in the maximum expectable deck transverse response is the aim of this ...beam ...

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Dynamics of high-speed railway bridges: review of design issues and new research for lateral dynamics

Dynamics of high-speed railway bridges: review of design issues and new research for lateral dynamics

... ropean railway bridges, with metallic open deck sections, high lateral compliance and consequently low lateral ...for railway bridges incorporated in the structural Eurocodes and UIC codes [4, ...

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Dynamic performance of existing double track railway bridges at resonance with the increase of the operational line speed

Dynamic performance of existing double track railway bridges at resonance with the increase of the operational line speed

... supported bridges of short to medium span lengths (10 m < L < 25 m) belonging to conventional railway ...girder bridges has been evaluated using an orthotropic plate finite element model, ...

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Coupled models for the dynamics of bridges under high-speed rail traffic

Coupled models for the dynamics of bridges under high-speed rail traffic

... of railway bridges under traffic loads has been an important consideration since the early days of railways in the 19th century, with significant implications both for the safety and the functionality of ...

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Effect of soil properties on the dynamic response of simply supported bridges under railway traffic through coupled boundary element finite element analyses

Effect of soil properties on the dynamic response of simply supported bridges under railway traffic through coupled boundary element finite element analyses

... SS railway bridges, and a wide range of variation of soil flexibilities and material damp- ing ...the bridges natural frequencies and struc- tural damping levels is evaluated with the properties of ...

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Influence of the Second Bending Mode on the Response of High-Speed Bridges at Resonance

Influence of the Second Bending Mode on the Response of High-Speed Bridges at Resonance

... some railway bridges; an example of such behavior is the passage of an ICE over a 40 m simply supported bridge: for this train, the characteristic distance be- tween consecutive groups of loads is equal to ...

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Broadband access in complex environments: LTE on railway

Broadband access in complex environments: LTE on railway

... that railway lines sig- nificantly alter the environment creating dumps, viaducts, cuts, bridges and frequently tunnels are built on modern rail- way ...in railway environment ...

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Non-axisymmetric oscillations of liquid bridges

Non-axisymmetric oscillations of liquid bridges

... The main experimental results already performed by using the neutral buoyancy technique concern the dynamics of axisymmetric liquid bridges. However, the need for an interpretation of the experiments carried out ...

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Nonlinear models for lateral dynamics of railway vehicles on bridges subject to wind action

Nonlinear models for lateral dynamics of railway vehicles on bridges subject to wind action

... High-speed trains have operation velocities around 200 - 400 km/h and, conse- quently, they require 3 - 6 seconds to cross bridges with typical lengths of 200 m. On the other hand, the earthquake duration may ...

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Dynamic stability of long axisymmetric liquid bridges

Dynamic stability of long axisymmetric liquid bridges

... liquid bridges have focused the attention of many investigators, with a large number of published papers on this topic (a review of the literature related to liquid bridges can be found in Sanz-Andres ...

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Estimating radial railway network improvement with a CAS

Estimating radial railway network improvement with a CAS

... Finally, 1 minus the quotient of the area of the isochrone circle graph if a proposed timetable change was implemented and the area of the original isochrone circle graph (expressed as a percentage) is what we denoted ...

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Fluid-structure interaction in long-span bridges

Fluid-structure interaction in long-span bridges

... structures such as bridges. In examples b-g, solutions are proposed regarding the modifications of the aerodynamic characteristics, which are mainly focused on avoiding the creation of energetic vortexes. Helical ...

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Long liquid bridges aboard sounding rockets

Long liquid bridges aboard sounding rockets

... However, a lot of material-science applications involve very slow mass- and heat-diffusion processes that operate over much longer periods, and the same was initially thought to be true with large free liquid masses. ...

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Leonardo's Civil Bridges

Leonardo's Civil Bridges

... In reality, it can not be stated that every machine and Leonardo’s “invention”, is the product of his original and fertil genius. To confirm this, suffice it to read Roger Bacon’s writings in the far England of XIII ...

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Effect of the end cross beams on the railway induced vibrations of short girder bridges

Effect of the end cross beams on the railway induced vibrations of short girder bridges

... the railway-induced vertical vibrations of simply- supported double track bridges composed by pre-stressed concrete girder ...high-speed railway lines in Spain. Even though railway ...

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BK PracticeBook pdf

BK PracticeBook pdf

... the Bridges Kindergarten program, they may help you better address the needs of some or all of your students, as well as the grade-level expectations in your particular ...after Bridges ses- sions that ...

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ARP Path Bridges: Implementación de Shortest Path Bridges Ethernet basados en ARP sobre Linux y Openflow/NetFPGA

ARP Path Bridges: Implementación de Shortest Path Bridges Ethernet basados en ARP sobre Linux y Openflow/NetFPGA

... Las redes metropolitanas o redes campus basadas en Ethernet ofrecen ventajas tales como sencillez de configuración (incluso autoconfiguración completa), la de evitar la administración de direcciones IP en subredes, alto ...

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