Effects of partially earth-anchored cable system on dynamic wind response of cable-stayed bridges

Jeong Hun Won, Ji Hyun Yoon, Se Jun Park, Sang Hyo Kim

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this study, a partially earth-anchored cable system is studied in order to reduce the dynamic wind response of cable-stayed bridges. The employment of earth-anchored cables changes the dynamic characteristics of cable-stayed bridges under wind loads. In order to estimate the changes in the member forces, the spectral analysis for wind buffeting loads are performed and the peak responses are evaluated using 3-D finite element models of the three-span cable-stayed bridges with the partially earth-anchored cable system and with the self-anchored cable system, respectively. Comparing the results for the two different models, it is found that the earth-anchored cables affect longitudinal and vertical modes of the bridge. The changes of the natural frequencies for the longitudinal modes remarkably decrease the peak bending moment in the pylon and the movements at the expansion joints. The small changes of the natural frequencies for the vertical modes slightly increase bending moments and deflections in the girder. The original effects of the partially earth-anchored cable system are also shown under wind loads; the decrement of girder axial forces and bearing uplifting forces, and the increment of cable forces in the earth-anchored cables.

Original languageEnglish
Pages (from-to)441-453
Number of pages13
JournalWind and Structures, An International Journal
Volume11
Issue number6
DOIs
Publication statusPublished - 2008 Nov

Fingerprint

Cable-stayed Bridge
Cable stayed bridges
Cable
Cables
Earth (planet)
Wind Loads
Bending moments
Natural Frequency
Natural frequencies
Bearings (structural)
Vertical
Buffeting
Moment
Expansion joints
Dynamic Characteristics
Spectral Analysis
Deflection
Spectrum analysis
Finite Element Model
Increment

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Modelling and Simulation

Cite this

@article{0272a4c55d0a458488ccceeb327b026c,
title = "Effects of partially earth-anchored cable system on dynamic wind response of cable-stayed bridges",
abstract = "In this study, a partially earth-anchored cable system is studied in order to reduce the dynamic wind response of cable-stayed bridges. The employment of earth-anchored cables changes the dynamic characteristics of cable-stayed bridges under wind loads. In order to estimate the changes in the member forces, the spectral analysis for wind buffeting loads are performed and the peak responses are evaluated using 3-D finite element models of the three-span cable-stayed bridges with the partially earth-anchored cable system and with the self-anchored cable system, respectively. Comparing the results for the two different models, it is found that the earth-anchored cables affect longitudinal and vertical modes of the bridge. The changes of the natural frequencies for the longitudinal modes remarkably decrease the peak bending moment in the pylon and the movements at the expansion joints. The small changes of the natural frequencies for the vertical modes slightly increase bending moments and deflections in the girder. The original effects of the partially earth-anchored cable system are also shown under wind loads; the decrement of girder axial forces and bearing uplifting forces, and the increment of cable forces in the earth-anchored cables.",
author = "Won, {Jeong Hun} and Yoon, {Ji Hyun} and Park, {Se Jun} and Kim, {Sang Hyo}",
year = "2008",
month = "11",
doi = "10.12989/was.2008.11.6.441",
language = "English",
volume = "11",
pages = "441--453",
journal = "Wind and Structures, An International Journal",
issn = "1226-6116",
publisher = "Techno Press",
number = "6",

}

Effects of partially earth-anchored cable system on dynamic wind response of cable-stayed bridges. / Won, Jeong Hun; Yoon, Ji Hyun; Park, Se Jun; Kim, Sang Hyo.

In: Wind and Structures, An International Journal, Vol. 11, No. 6, 11.2008, p. 441-453.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of partially earth-anchored cable system on dynamic wind response of cable-stayed bridges

AU - Won, Jeong Hun

AU - Yoon, Ji Hyun

AU - Park, Se Jun

AU - Kim, Sang Hyo

PY - 2008/11

Y1 - 2008/11

N2 - In this study, a partially earth-anchored cable system is studied in order to reduce the dynamic wind response of cable-stayed bridges. The employment of earth-anchored cables changes the dynamic characteristics of cable-stayed bridges under wind loads. In order to estimate the changes in the member forces, the spectral analysis for wind buffeting loads are performed and the peak responses are evaluated using 3-D finite element models of the three-span cable-stayed bridges with the partially earth-anchored cable system and with the self-anchored cable system, respectively. Comparing the results for the two different models, it is found that the earth-anchored cables affect longitudinal and vertical modes of the bridge. The changes of the natural frequencies for the longitudinal modes remarkably decrease the peak bending moment in the pylon and the movements at the expansion joints. The small changes of the natural frequencies for the vertical modes slightly increase bending moments and deflections in the girder. The original effects of the partially earth-anchored cable system are also shown under wind loads; the decrement of girder axial forces and bearing uplifting forces, and the increment of cable forces in the earth-anchored cables.

AB - In this study, a partially earth-anchored cable system is studied in order to reduce the dynamic wind response of cable-stayed bridges. The employment of earth-anchored cables changes the dynamic characteristics of cable-stayed bridges under wind loads. In order to estimate the changes in the member forces, the spectral analysis for wind buffeting loads are performed and the peak responses are evaluated using 3-D finite element models of the three-span cable-stayed bridges with the partially earth-anchored cable system and with the self-anchored cable system, respectively. Comparing the results for the two different models, it is found that the earth-anchored cables affect longitudinal and vertical modes of the bridge. The changes of the natural frequencies for the longitudinal modes remarkably decrease the peak bending moment in the pylon and the movements at the expansion joints. The small changes of the natural frequencies for the vertical modes slightly increase bending moments and deflections in the girder. The original effects of the partially earth-anchored cable system are also shown under wind loads; the decrement of girder axial forces and bearing uplifting forces, and the increment of cable forces in the earth-anchored cables.

UR - http://www.scopus.com/inward/record.url?scp=57149133548&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57149133548&partnerID=8YFLogxK

U2 - 10.12989/was.2008.11.6.441

DO - 10.12989/was.2008.11.6.441

M3 - Article

AN - SCOPUS:57149133548

VL - 11

SP - 441

EP - 453

JO - Wind and Structures, An International Journal

JF - Wind and Structures, An International Journal

SN - 1226-6116

IS - 6

ER -