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Article Details

  • Article Code : FIRAT-AKADEMI-8523-4000
  • Article Type : Araştırma Makalesi
  • Publication Number : 1A0415
  • Page Number : 229-246
  • Doi : 10.12739/NWSA.2018.13.3.1A0415
  • Abstract Reading : 581
  • Download : 126
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Issue Details

  • Year : 2018
  • Volume : 13
  • Issue : 3
  • Number of Articles Published : 9
  • Published Date : 1.07.2018

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Engineering Sciences

Serial Number : 1A
ISSN No. : 1308-7231
Release Interval (in a Year) : 4 Issues

EFFECTIVENESS OF WAVE PASSAGE EFFECT OF SEISMIC ISOLATED AND NONISOLATED BRIDGES UNDER SPATIALLY VARYING GROUND MOTION

Muhammet YURDAKUL1 , ŞEVKET ATEŞ2

In this study, stochastic analyses of isolated and nonisolated highway bridges under spatially varying ground motion are performed. The bridge is isolated with triple concave friction pendulum (TCFP) bearing. The selected bridge is assumed to be constructed on homogeneous soft soil. Incoherency effects are neglected and wave passage effect is taken into account in the stochastic analyses. The bridge model subjected to spatially varying earthquake ground motions in the horizontal direction. The horizontal input is assumed to travel across the bridge from left to right side with finite velocities of 100m/s, 200m/s and 400m/s. The means of the maximum responses of displacement and internal forces of bridge deck are investigated. The results of these stochastic analyses are also compared with the results of infinite velocity. Analysis results show that using TCFP bearing on Highway Bridge reduces means of maximum values of total axial force, shear force and bending moment of bridge deck by 89%, 86% and 96%, respectively. In generally, low speed is more effective than high speed at the means of the maximum responses of internal forces of bridge deck. The finite velocity is the most effective at means of the maximum responses of horizontal displacement of bridge deck.

Keywords
Stochastic Analysis, Seismic Isolation, Sliding Isolation System, Triple Friction Pendulum Bearing, Wave Passage Effect,

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Authors

Muhammet YURDAKUL (1) (Corresponding Author)

KARADENIZ TEKNIK ÜNIVERSITESI
m.yurdakul@ktu.edu.tr | 0000-0002-3904-3206

ŞEVKET ATEŞ (2)

Karadeniz Teknik Üniversitesi
sates@ktu.edu.tr | 0000-0001-9229-6256

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References
[1] Zayas, V.A., Low, S.S., Mahin, S.A., and Bozzo, L., (1989). Feasibility and Performance Studies on Improving The Earthquake Resistance of New Existing Building Using The Friction Pendulum System, In: Report No. UCB/EERC 89-09. Berkeley (CA): Earthquake Engineering and Research Center, College of Engineering, University of California.