Cable Stays – Queensferry Crossing

2018 ◽  
Author(s):  
Simon Ruas ◽  
Rachid Annan
Keyword(s):  
Cable Stays

Bending Fatigue of Cable Stays

2001 ◽  
Vol 6 (6) ◽  
pp. 639-644 ◽  
Author(s):  
J. Dowd ◽  
M. Poser ◽  
K. H. Frank ◽  
S. L. Wood ◽  
E. B. Williamson
Keyword(s):  
Bending Fatigue ◽  
Cable Stays

Retrofit of Aerodynamic Cable Instability on a Cable-Stayed Bridge: Case Study

2000 ◽  
Vol 1740 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Niket M. Telang ◽  
Charles M. Minervino ◽  
Paul G. Norton
Keyword(s):  
Large Amplitude ◽  
Weather Conditions ◽  
Mitigation Measures ◽  
Mobile Bay ◽  
Department Of Transportation ◽  
Light Rain ◽  
Wind Speeds ◽  
Cable Stays ◽  
Large Amplitude Vibrations

Elegantly poised over the Mobile River, the twin pylons and the semi-harped cable stays of the Cochrane Bridge subtly complement the vast and undulating landscape of the Mobile Bay as the bridge carries US Route 90 over the Mobile River in Alabama. In February 1998, light rain drizzled on the bridge, and a weather station nearby recorded wind speeds of about 48 km/h (30 mph). Under these seemingly mild weather conditions, the normally immobile cable stays started to vibrate, and within moments, these nascent vibrations reached amplitudes of more than 1.2 m (4 ft). Alarmed by this event, the Alabama Department of Transportation (ALDOT) took immediate action to ensure the continued safety and serviceability of the bridge. A team of consultants was selected by ALDOT to investigate mitigation measures for the large-amplitude cable-stay vibrations. The fast-tracked comprehensive program planned and implemented to inspect, test, document, and evaluate the effects of the large-amplitude vibrations and the recommendation of retrofit measures that would limit future occurrences of such cable-stay vibrations on the Cochrane Bridge are described in detail.

Nonlinear Parametric Resonances in a Stay of the Iroise Cable-Stayed Bridge: Analytical Model and Experiments

2007 ◽  
Author(s):  
Olivier Boujard ◽  
Ste´phane Pernot ◽  
Alain Berlioz ◽  
Claude Lamarque
Keyword(s):  
Spectral Analysis ◽  
Analytical Model ◽  
Parametric Resonance ◽  
Resonance Mechanism ◽  
The Third ◽  
Cable Stayed Bridge ◽  
Parametric Resonances ◽  
Traffic Environment ◽  
Cable Stays ◽  
Bending Modes

Recent experimental campaigns led on the Iroise cable stayed bridge near Brest, France, revealed repeated vibratory events in some cable stays likely to provoke durability problems. A spectral analysis emphasized two regimes in which either the fundamental or the third cable mode were excited. Yet, wavelet scalograms of tests allowed to exhibit a global pylon mode excited by traffic environment through deck-cable-tower interaction and which again excites local cable modes by means of a nonlinear parametric resonance mechanism with vertical bending modes of the girder. Preliminary results are introduced as an attempt to explain such a scenario.

scholarly journals SHM System and a FEM Model-Based Force Analysis Assessment in Stay Cables

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 1927
Author(s):  
Jan Biliszczuk ◽  
Paweł Hawryszków ◽  
Marco Teichgraeber
Keyword(s):  
Measured Data ◽  
The Finite Element Method ◽  
Force Analysis ◽  
Fem Model ◽  
Temperature Changes ◽  
The Third ◽  
Cable Stayed Bridge ◽  
Stay Cables ◽  
Durability Assessment ◽  
Cable Stays

The Rędziński Bridge in Wrocław is the biggest Polish concrete cable-stayed bridge. It is equipped with a large structural health monitoring (SHM) system which has been collecting the measured data since the bridge opening in the year 2011. This paper presents a comparison between the measured data and the finite element method (FEM) calculations, while taking into account 7 years of data collection and analyses. The first part of this paper concerns the SHM application. In the next part, which contains comparisons between forces in cables and temperature changes throughout the structure, the measured data are presented. The third part includes SHM-based calculations and simulations with a complex FEM model to check the measured data and to estimate future measurements. The last part contains a durability assessment calculation for the cable stays.

Dynamic Interaction Aspects of Cable-Stayed Guideways for High Speed Ground Transportation

1974 ◽  
Vol 96 (2) ◽  
pp. 180-192 ◽  
Author(s):  
S. G. Meisenholder ◽  
P. Weidlinger
Keyword(s):  
Elastic Foundation ◽  
Conceptual Design ◽  
Traveling Wave ◽  
High Speed ◽  
Dynamic Interaction ◽  
Design Approach ◽  
Live Load ◽  
Beam On Elastic Foundation ◽  
Long Span ◽  
Cable Stays

This paper describes the dynamic considerations in the design of a long span (200 to 600 ft) cable-stayed guideways for future tracked levitated vehicles (TLV’s) which will be used for high speed ground transportation. A design approach is described in which a cable-stayed guideway structure can be synthesized to simulate the behavior of a beam on elastic foundation. This result is achieved by the “cable-tuning” approach, in which the cable stays are selected to achieve an equivalent uniform elastic foundation. The design approach insures that the live load deflection of the trackway beam is manifested as a traveling wave which moves horizontally at the same velocity as the vehicle, thereby minimizing dynamic interaction problems. Parametric results are presented for the dynamic response of a beam on elastic foundation. Optimum cable and tower configurations are developed for this guideway concept and a typical conceptual design is described.

Durability of Cable Stays for Cable-Stayed Bridges

1991 ◽  
Vol 1 (1) ◽  
pp. 60-62
Author(s):  
Suonobu Tanabe ◽  
Hajime Hosokawa
Keyword(s):  
Cable Stays ◽  
Cable Stayed Bridges

scholarly journals Review on the Impact of Elements Used During Bridge Construction

2021 ◽  
pp. 19-22
Author(s):  
Nikhil Kumar Singh ◽  
Jyoti Yadav
Keyword(s):  
High Strength ◽  
Dynamic Effects ◽  
Earthquake Loads ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Long Span Bridge ◽  
Cable Stays ◽  
The Impact ◽  
Innovative Techniques ◽  
Cable Stayed Bridges

The requirement of long span bridge is increase with development of infrastructure facility in every nation. Long span bridge could be achieved with use of high strength materials and innovative techniques for analysis of bridge. Generally, cable-supported bridges comprise both suspension and cable-stayed bridges. Cable-supported bridges are very flexible in behavior. These flexible systems are susceptible to the dynamic effects of wind and earthquake loads. The cable-stayed bridge could provide more rigidity due to the presence of tensed cable stays as a force resistance element.

Sign in / Sign up

Export Citation Format

Share Document