Case study

102 Pages·2013·7.48 MB·English

by  Andreas Andersson

Marie Curie Industry‐Academia Partnerships and Pathways 
Call: FP7‐People‐2011‐IAPP 
Long Life Bridges – Research Report

Secondment 1.1b
Adaptive and semi‐active vibration control
of railway bridge dynamics
Deliverable No: 1.1
Roughan & O’Donovan
Innovative Solutions
March 2013

Project Title: Long Life Bridges
Deliverable No: 1.1
Deliverable Title: Secondment 1.1b
Adaptive and semi-active vibration control of railway bridge dynamics
Dissemination Level: RE
Document No: LLB-RODIS-REP-1.1b-Railway_Dynamics
Created by: Andreas Andersson
Checked by: Alan O’Connor
Approved by: Eugene O’Brien

Description Issue Created Checked Approved Date
Research
1.0 14/3/13 2/4/13
Report

1st revision 1.1 29/3/13 2/4/13

The research leading to these results has received funding from the European Union's Seventh
Framework Programme (FP7/2007-2013) under the Marie Curie, Industry and Academia
Partnerships and Pathways (IAPP) call, Grant agreement no. 286276

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Acknowledgements
Long Life Bridges is a Marie Curie 7th Framework Project funded under the Industry and Academia
Partnerships and Pathways call, Grant Agreement No. 286276. The Project commenced in September
2011 and is continuing for 4 years until August 2015. The author wishes to acknowledge the financial
contribution by the European Commission in supporting the project and funding this research.
The work presented in this report has been conducted at Roughan & O’Donovan Innovative Solutions,
Dublin, Ireland, during the period of January to December 2012, under supervision of Associate
Professor Alan O’Connor. The author has been seconded from the Royal Institute of Technology
(KTH), Division of Structural Engineering and Bridges.
Within the project, experimental work to develop a prototype damper has been carried out at Trinity
College Dublin (TCD), Department of Civil, Structural and Environmental Engineering. A special
thank goes to Dr. Kevin Ryan and the laboratory staff at the Department for the help in manufacturing
and testing the prototype damper.
Full-scale testing has been performed on a railway bridge in Sweden. The tests were funded directly
by the Swedish Transport Administration (Trafikverket). The instrumentation and field measurements
were performed by KTH in collaboration with the author.
Stockholm, April 2013
Andreas Andersson
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List of publications
Within the project, the following publications have been produced.
I. Attenuating resonant behaviour of a tied arch railway bridge using increased hanger
damping. Taylor & Francis, IABMAS 2012, Stresa, Italy, July 8-12 2012.
(Conference paper, published)
II. Semi active damping systems for railway bridges. BCRI 2012, Dublin, Ireland,
September 6-7 2012. (Conference paper, published)
III. Vibration mitigation of railway bridges using adaptive damping control. IABSE 2013,
Rotterdam, The Netherlands, May 6-8 2013. (Conference paper, accepted)
IV. Passive and adaptive damping systems for vibration mitigation and increased fatigue
service life of a tied arch railway bridge. (Journal paper. submitted to ASCE Journal of
Bridge Engineering, February 2013)
V. Development and testing of a bi-directional multi-passive tuned mass damper.
(Journal paper. submitted to ASCE Journal of Structural Engineering, February 2013)
VI. External damping of stay cables using adaptive and semi-active vibration control.
ICSBOC 2013, Edinburgh, Scotland, June 3-5 2013. (Conference paper, accepted)

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Contents
Acknowledgements iii
List of publications v
1. Introduction 1
1.1. The Long Life Bridges project . . . . . . . . . . . . . . . . . .. 1
1.2. Secondment 1.1b. . . . . . . . . . . . . . . . . . . . . . .. 2
1.3. Knowledge transfer. . . . . . . . . . . . . . . . . . . . . .. 2
1.4. Format of the report. . . . . . . . . . . . . . . . . . . . . .. 2
2. Extended summary 5
2.1. Case study bridge . . . . . . . . . . . . . . . . . . . . . .. 5
2.2. Paper I – Case study bridge (IABMAS 2012) . . . . . . . . . . . . .. 7
2.3. Paper II – Adaptive control (BCRI 2012) . . . . . . . . . . . . . .. 8
2.4. Paper III – Adaptive control (IABSE 2013). . . . . . . . . . . . . .. 8
2.5. Paper IV –Vibration control and fatigue (ASCE) . . . . . . . . . . . .. 9
2.6. Paper V – Laboratory work on prototype damper (ASCE). . . . . . . . .. 10
2.7. Paper VI – Cable dynamics (ICSBOC’13) . . . . . . . . . . . . . .. 11
A. Structure of developed routines 13
A.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . .. 13
B. Instrumentation of the case study bridge 17
B.1. Content . . . . . . . . . . . . . . . . . . . . . . . . . .. 17
Paper I.
Paper II.
Paper III.
Paper IV.
Paper V.
Paper VI.
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