Using satellites to monitor Severn Bridge structure, UK

Roberts, Gethin Wyn; Brown, Chris; Tang, Xu; Ogundipe, Oluwatomisin

doi:10.1680/bren.14.00008

Cited by 6 publications

(10 citation statements)

References 10 publications

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“…The case study of Severn Suspension Bridge can be considered as suitable for the PP method, since the bridge modal frequencies are considered as well-separated. 56 Furthermore, the assessment of the beneficial contribution of multi-GNSS was based on modal frequencies, which were confirmed by previous studies 46,48 and time intervals of known conditions of excitation/loading.…”

Section: Severn Bridge Response-spectral Analysissupporting

confidence: 75%

“…Each tower has a height of 136 m above mean sea level. 46,47 Apart from the GNSS monitoring campaign of 2015, on which the current study was based, there was also the GNSS monitoring campaign of 2010. Previous studies of monitoring Severn Suspension Bridge, which were based on both GNSS monitoring campaigns (2010 and 2015), have revealed that the main modal frequencies of the midspan are 0.147 and 0.226 Hz, at the vertical component, and 0.09 Hz at the lateral component, while for the tower, the main modal frequency is 0.147 Hz on the longitudinal component, which reflects the impact of the first mode of the deck on the towers.…”

Section: Severn Bridge Monitoringmentioning

confidence: 99%

“…Previous studies of monitoring Severn Suspension Bridge, which were based on both GNSS monitoring campaigns (2010 and 2015), have revealed that the main modal frequencies of the midspan are 0.147 and 0.226 Hz, at the vertical component, and 0.09 Hz at the lateral component, while for the tower, the main modal frequency is 0.147 Hz on the longitudinal component, which reflects the impact of the first mode of the deck on the towers. 46,48 Regarding the vertical response at the midspan, it can reach 10-20 cm, depending on the vehicle loading, and the longitudinal/lateral response of the towers may reach even up to 2 cm. 11,45,46,48…”

Section: Severn Bridge Monitoringmentioning

confidence: 99%

“…46,48 Regarding the vertical response at the midspan, it can reach 10-20 cm, depending on the vehicle loading, and the longitudinal/lateral response of the towers may reach even up to 2 cm. 11,45,46,48…”

Section: Severn Bridge Monitoringmentioning

confidence: 99%

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Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi‐GNSS measurements

Msaewe

Psimoulis

Hancock

et al. 2021

Structural Contr & Hlth

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The application of GPS in bridge monitoring aims to determine accurately and precisely the response of the deck and towers of the bridge and estimate the main response characteristics (amplitude and modal frequencies). The main requirement of GPS monitoring is a high level of accuracy and availability of fixed solutions, which ensure the reliable operation of GPS and result in the precise estimation of the bridge's response. However, the derived GPS time series of bridge monitoring can be contaminated by noise, due to the performance of the GPS satellite(s), the geometry of the GPS satellite constellation and the potential obstructions due to the bridge elements, which can even lead to GPS solution of poor accuracy and/or precision and result in reduced efficiency of the performance of the GPS monitoring. This study investigates the potential contribution of other Global Navigation Satellite Systems (GNSS) constellations for a more robust and reliable displacement time series solution, derived from multi-GNSS records. More specifically, a novel method is developed to derive the optimal combination of GNSS records to determine the GNSS displacement time series based on checks of parameters which reflect the geometry of the satellite constellation and the quality of the GNSS satellites signals. The method is applied in monitoring of the Severn Suspension Bridge, in the United Kingdom, and it is revealed the enhancement in the GNSS monitoring performance of the bridge response for specific time intervals for various locations on the bridge's support towers, suspension cables and deck.

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Section: Severn Bridge Response-spectral Analysissupporting

confidence: 75%

Section: Severn Bridge Monitoringmentioning

confidence: 99%

Section: Severn Bridge Monitoringmentioning

confidence: 99%

Section: Severn Bridge Monitoringmentioning

confidence: 99%

See 2 more Smart Citations

Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi‐GNSS measurements

Msaewe

Psimoulis

Hancock

et al. 2021

Structural Contr & Hlth

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show abstract

“…The paper by Roberts et al (2015) describes the use of GPS surveying techniques to monitor movements on the Severn Bridge, a large suspension bridge in the UK. This relatively new technique can collect data on displacement, even when the bridge is subjected to normal traffic loading.…”

mentioning

confidence: 99%

Editorial

Jones¹

2015

Proceedings of the Institution of Civil Engineers - Bridge Engi

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We know that bridge engineering requires a wide range of skills and knowledge. It is a given that an advanced knowledge of structural form and analysis is required. However, bridge engineers also need to be aware of the diverse range of current practice and developments around the world. They need to keep abreast of the latest research and how this might be applied to improve both their design of new bridges and management of existing bridges. Of course, knowledge of innovative and feasible methods for construction is essential. They also need to be informed in the latest developments in construction materials. It is equally important to understand how existing bridge designs behave and what techniques are available to monitor this behaviour. Finally, the bridge engineer needs to have a historical perspective in order to understand why their predecessors chose the structural designs and applied the construction methods that were applied to create the existing stock of bridges.This issue of Bridge Engineering includes six technical papers that cover all of the above diverse aspects of bridge engineering. The geographic spread of the authors contributing to this issue clearly demonstrates the truly international nature of bridge engineering as well as the readership of the ICE Proceedings.In the first paper, Donnelly and Wise (2015) describe the design and construction of the South Highway Superway project in Adelaide, South Australia. This 4·8 km-long highway scheme includes 2·8 km of elevated viaducts. The balanced cantilever method is employed to construct the match cast concrete segmental deck through a very tight site corridor. A particularly interesting feature of this design is the use of steel needle beam expansion joints that eliminate the need for large bearings below the deck. This development should yield long-term benefits for reduced maintenance costs.The distribution of patch loading applied to bridge decks onto adjacent supports, such as wheel loads on highway bridges, is an area where bridge engineers have always had to apply engineering judgement. In the second paper, Lantsoght et al. (2015) investigate both an approximate spreadsheet method and a more rigorous numerical analysis using a linear finite element method, based on Dutch practice. Results are compared to experimental measurements and they are able to conclude that the peak shear stress at the support can be distributed over an easy to apply width of four effective depths of the slab.

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Physical, Geodetic Methods and Automatic Monitoring System

Vrce

Bojić

2021

Lecture Notes in Networks and Systems

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Using satellites to monitor Severn Bridge structure, UK

Cited by 6 publications

References 10 publications

Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi‐GNSS measurements

Monitoring the response of Severn Suspension Bridge in the United Kingdom using multi‐GNSS measurements

Editorial

Physical, Geodetic Methods and Automatic Monitoring System

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