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Operational monitoring and mitigation of wind-Induced vibration for a parallel cable stayed bridge
병렬사장교의 풍진동 저감을 위한 다중동조질량감쇠기의 적용

DC Field Value Language
dc.contributor.advisorKim Ho Kyung-
dc.contributor.author아이윱와히디-
dc.date.accessioned2017-07-14T04:15:14Z-
dc.date.available2017-07-14T04:15:14Z-
dc.date.issued2015-02-
dc.identifier.other000000024890-
dc.identifier.urihttps://hdl.handle.net/10371/124275-
dc.description학위논문 (석사)-- 서울대학교 대학원 : 건설환경공학부, 2015. 2. Kim Ho Kyung.-
dc.description.abstractVortex induced vibration (VIV) was observed in the second Jindo Bridge in South Korea, and a Multiple Tuned Mass Damper (MTMD) was designed and installed by a private design company to increase the mechanical damping and reduce the vibration.
Due to overdesigning of the actual damping system, an alternative design of the MTMD is proposed. The design procedure was decided based on wind tunnel tests, field monitoring, and numerical simulation.
The design theory of the TMD and MTMD was studied, and the design properties of the single TMD are used for the preliminary design of the MTMD. Design criteria were considered and MTMD design procedure was established based on the defined criteria.
The procedure was applied to the second Jindo Bridge. Then an alternative design was proposed. Satisfying the design criteria and presenting good properties for mitigating the VIV, this procedure is sufficiently safe, based on the performed numerical simulation. Moreover, it is not overdesigned for the required performance.
After understanding and applying the MTMD design procedure, the current MTMD performance is evaluated based on field monitoring and the general properties of the MTMD and VIV are verified.
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dc.description.tableofcontentsCHAPTER 1 INTRODUCTION
1.1 RESEARCH CONTEXT AND PLAN
1.2 BACKGROUND RESEARCH
CHAPTER 2 RESEARCH CONTEXT
2.1 STRUCTURAL DESIGN LABORATORY
2.1.1 Research fields
2.1.2 Experimental facility
2.1.3 Laboratory description
2.1.4 Current research issues and motivations
2.2 INVESTIGATED BRIDGE: SECOND JINDO BRIDGE
2.3 CURRENT MTMD DESIGN AND PROBLEM DEFINITION
CHAPTER 3 THEORY OF THE MULTIPLE TUNED MASS DAMPER
3.1 SINGLE TUNED MASS DAMPER
3.1.1 Definition and function
3.1.2 Characteristics: design of the TMD
3.1.3 Theory of the TMD: Derivation
3.2 MULTIPLE TUNED MASS DAMPER
3.2.1 Introduction
3.2.2 Design of MTMD
CHAPTER 4 APPLICATION: DESIGN OF THE MTMD
4.1 DESIGN CRITERIA
4.2 PROCEDURE OVERVIEW
4.3 ALTERNATIVE DESIGN RESULTS
4.3.1 Determination of the mass ratio
4.3.2 Calculating the optimal bandwidth 26
4.3.3 Deciding on the TMDs damping ratio 26
4.3.4 Checking the performance of the MTMD
4.3.5 Summary of the design of the MTMD
4.4 THE EFFECT OF THE BANDWIDTH ON MITIGATION
4.5 COMPARISON WITH THE CURRENT MTMD DESIGN
CHAPTER 5 PERFORMANCE EVALUATION OF THE CURRENT MTMD
5.1 GENERAL DEVELOPMENT OF THE VIV
5.2 ACCELERATION AND POWER SPECTRAL DENSITY
5.3 TMD RESPONSE: PHASE LAG BETWEEN THE MTMD AND THE BRIDGE
CHAPTER 6 CONCLUSIONS
REFERENCES
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dc.formatapplication/pdf-
dc.format.extent2405825 bytes-
dc.format.mediumapplication/pdf-
dc.language.isoen-
dc.publisher서울대학교 대학원-
dc.subjectMultiple tuned mass damper-
dc.subjectVortex induced vibration-
dc.subjectcable-stayed bridge-
dc.subjectfield monitoring-
dc.subjectmitigation-
dc.subject.ddc624-
dc.titleOperational monitoring and mitigation of wind-Induced vibration for a parallel cable stayed bridge-
dc.title.alternative병렬사장교의 풍진동 저감을 위한 다중동조질량감쇠기의 적용-
dc.typeThesis-
dc.contributor.AlternativeAuthorAyoub Ouahidi-
dc.description.degreeMaster-
dc.citation.pages57-
dc.contributor.affiliation공과대학 건설환경공학부-
dc.date.awarded2015-02-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Civil & Environmental Engineering (건설환경공학부)Theses (Master's Degree_건설환경공학부)
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