Obtaining evidence of structural safety using a fibre optical monitoring system on the example of the “Wave of Bern”

Siegwart, Michael; Wanner, Martin‐Christoph; Zwicky, P.

doi:10.1016/j.engfailanal.2006.11.060

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Wired system to monitoring construction of building based on the metallic strain gauge is presented on the paper [15]. In the article [16] presented a comprehensive system for monitoring the condition of a building's roof. The structure tensions were measured used optical fiber.…”

Section: Introductionmentioning

confidence: 99%

Wireless Network Node to Monitor Stress in Steel Structures

Dziadak¹,

Siek²

2016

ElAEE

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The article presents a wireless measuring node operating in a system monitoring stress in steel structures. Stress sensor is a foil strain gauge, working in a half-bridge circuit. The presented node is based on the microcontroller Atmeg 8, and the data transmission modem used 433 MHz band. The use of 22-bit ADC allows for measurement of the stresses at 4 u-strain resolution. The article discussed the structure of the node, installation problems in the actual real projects and the results of laboratory tests. Based on the research it can be concluded that the measuring node can be used to monitor the load caused by residual snow on the steel roofs.

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Section: Introductionmentioning

confidence: 99%

Wireless Network Node to Monitor Stress in Steel Structures

Dziadak¹,

Siek²

2016

ElAEE

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Applications of fiber optic sensors in concrete structural health monitoring

Dai

Zhang

Sun

et al. 2008

Proceedings of SPIE

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Design of infrastructure incorporating monitoring regimes to evaluate the performance and schedule maintenance over the entire life time

Siegwart¹,

Zwicky²

2007

IABSE Symposium, Weimar 2007: Improving Infrastructure Worldwide

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Bridges are generally designed for a life time of 120 years. The structural behaviour and material degradation mechanisms are considered during the design stage in order to achieve this design life. The life time of the structure, which is subject to a variety of loads and exposed to certain environmental conditions, depends therefore to a large extent on the assumptions made during the design stage. However, experience has shown that especially loading conditions i.e. traffic loading is likely to deviate from the assumptions made during the design stage. Further, the impact of exceptional events such as earthquakes could affect the integrity of the structure. The degradation of a structure very often has not progressed very far and when the structure is monitored, it is possible to extend maintenance free periods. Further, with monitoring hard- and software becoming more and more sophisticated, it is possible to have this information readily available any time. Therefore, it is recommended that monitoring regimes are considered as an integral part of the design and become part of the maintenance schedule of any major infrastructure project. In short, monitoring regimes can be used to optimise spending on maintenance. In this paper, one possible use of structural monitoring is shown on the example of the bridge over the river Reuss in Wassen, Switzerland. The cost of the monitoring regime is compared to the cost savings made by it over the lifetime of the project. In addition, the design criteria of such a system required to achieve a permanent monitoring throughout the lifetime of a structure are explained and the use of the data for a bridge maintenance strategy is shown. Monitoring regimes can be used as a maintenance tool to optimise spending over the life time of the object and, ultimately, to safe costs.

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Obtaining evidence of structural safety using a fibre optical monitoring system on the example of the “Wave of Bern”

Cited by 3 publications

References 3 publications

Wireless Network Node to Monitor Stress in Steel Structures

Wireless Network Node to Monitor Stress in Steel Structures

Applications of fiber optic sensors in concrete structural health monitoring

Design of infrastructure incorporating monitoring regimes to evaluate the performance and schedule maintenance over the entire life time

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