Damage Localization on a Suspension Bridge subject to Wind Induced Vibrations

2013 ◽  
Author(s):  
M. Domaneschi ◽  
M.P. Limongelli ◽  
L. Martinelli
Keyword(s):  
Suspension Bridge ◽  
Damage Localization

Vibration based damage localization using MEMS on a suspension bridge model

2013 ◽  
Vol 12 (6) ◽  
pp. 679-694 ◽  
Author(s):  
Marco Domaneschi ◽  
Maria Pina Limongelli ◽  
Luca Martinelli
Keyword(s):  
Suspension Bridge ◽  
Damage Localization ◽  
Bridge Model

scholarly journals Wind-driven damage localization on a suspension bridge

2016 ◽  
Vol 11 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Marco Domaneschi ◽  
Maria Pina Limongelli ◽  
Luca Martinelli
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Damage Identification ◽  
Structural Response ◽  
Suspension Bridge ◽  
Element Model ◽  
Damage Localization ◽  
Damage Scenarios ◽  
Long Span Bridges ◽  
Long Span

The paper focuses on extending a recently proposed damage localization method, previously devised for structures subjected to a known input, to ambient vibrations induced by an unknown wind excitation. Wind induced vibrations in long-span bridges can be recorded without closing the infrastructure to traffic, providing useful data for health monitoring purposes. One major problem in damage identification of large civil structures is the scarce data recorded on damaged real structures. A detailed finite element model, able to correctly and reliably reproduce the real structure behavior under ambient excitation can be an invaluable tool, enabling the simulation of several different damage scenarios to test the performance of any monitoring system. In this work a calibrated finite element model of an existing long-span suspension bridge is used to simulate the structural response to wind actions. Several damage scenarios are simulated with different location and severity of damage to check the sensitivity of the adopted identification method. The sensitivity to the length and noise disturbances of recorded data are also investigated.

Control of Vibrations due to Moving Loads on Suspension Bridges

2006 ◽  
Vol 11 (3) ◽  
pp. 293-318 ◽  
Author(s):  
M. Zribi ◽  
N. B. Almutairi ◽  
M. Abdel-Rohman
Keyword(s):  
Bridge Deck ◽  
Suspension Bridge ◽  
Lyapunov Theory ◽  
Dynamic Responses ◽  
Suspension Bridges ◽  
Control Force ◽  
Moving Loads ◽  
Hydraulic Actuator ◽  
Long Span ◽  
Suspended Cables

The flexibility and low damping of the long span suspended cables in suspension bridges makes them prone to vibrations due to wind and moving loads which affect the dynamic responses of the suspended cables and the bridge deck. This paper investigates the control of vibrations of a suspension bridge due to a vertical load moving on the bridge deck with a constant speed. A vertical cable between the bridge deck and the suspended cables is used to install a hydraulic actuator able to generate an active control force on the bridge deck. Two control schemes are proposed to generate the control force needed to reduce the vertical vibrations in the suspended cables and in the bridge deck. The proposed controllers, whose design is based on Lyapunov theory, guarantee the asymptotic stability of the system. The MATLAB software is used to simulate the performance of the controlled system. The simulation results indicate that the proposed controllers work well. In addition, the performance of the system with the proposed controllers is compared to the performance of the system controlled with a velocity feedback controller.

New Concept for Main Cable of Suspension Bridge

2012 ◽  
Vol 18 (6) ◽  
pp. 1552-1559
Author(s):  
Shinichi Konno
Keyword(s):  
Suspension Bridge ◽  
Main Cable

STRATEGI BRANDING IDENTITY @SITUGUNUNGSUSPENSIONBRIDGE DI KAB SUKABUMI UNTUK MENINGKATKAN PARIWISATA

2020 ◽  
Vol 4 (1) ◽  
pp. 36-45
Author(s):  
Hilda Sri Rahayu ◽  
Susanne Dida ◽  
Yanti Setianti
Keyword(s):  
Suspension Bridge ◽  
Brand Identity

Penelitian ini dilakukan pada objek wisata situ gunung suspension bridge. tujuan penelitian adalah bagaiamana strategi brand identity yang dilakukan oleh situ gunung melalu media sosial Instagram di akun @situgunungsuspensionbridege dalam menarik wisatawan, serta bagaimana strategi yang dilakukan oleh akun media sosial situ gunung melalui brand identity wisata ini menjadi simbol daya tarik untuk para wisatawan, penelitian ini dilakukan untuk melihat pembentukan brand idenitity yang ada di media sosial instagram terhadap kunjungan wisatawan penulis ingin mengetahui keadaan dari segi perusahaan dan juga dari stakeholder. Metode penelitian yang digunakan dalam penelitian ini adalah kualitatif deskriptif dengan metode studi kasus. Hasil penelitian menunjukan bahwa strategi brand identity di media sosial Instagram @situgunungsuspensionbridge dari yaitu Humas situ gunung yang melakukan pendekatan dengan pemangku kepentingan yaitu Kementerian Lingkungan Hidup dan Kehutanan strategi branding identity yang dilakukan untuk membuat masyarakat yang ada di sekitar Kab Sukabumi serta masyarakat yang ada di lndonesia mengunjungi objek wisata baru branding identity yang dimplementasikan dan dievaluasi dengan baik.

SEISMIC BEHAVIOR OF SUPER LONG MULTI-SPAN SUSPENSION BRIDGE WITH CENTER SPAN LENGTH OF 3000M

2018 ◽  
Vol 74 (4) ◽  
pp. I_803-I_817
Author(s):  
Shingo IWASHITA ◽  
Hitoshi NAKAMURA ◽  
Kuniei NOGAMI ◽  
Yusuke KISHI ◽  
Kazuya MAGOSHI ◽  
...  
Keyword(s):  
Seismic Behavior ◽  
Suspension Bridge ◽  
Span Length

Risk Prevention Measures for Three-Tower and Four-Span Suspension Bridge under Vehicle Fire

2014 ◽  
Vol 919-921 ◽  
pp. 590-597
Author(s):  
Mu Yu Liu ◽  
Wei Tian ◽  
Ying Wang ◽  
Wu Jing ◽  
Xi Chen
Keyword(s):  
Reporting System ◽  
Suspension Bridge ◽  
Risk Prevention ◽  
Public Security ◽  
Alarm System ◽  
Prevention Measures ◽  
Fire Control ◽  
Emergency Rescue ◽  
Report System ◽  
Set Up

Risk prevention measures were put forward about vehicle burning in operating periods for three-tower and four-span suspension bridge, combining with the characteristics of bridge vehicle burning accident. The article set up a traffic reporting system of the tankers for a bridge, and determined the report system of tankers across the bridge. Tankers should passed in the middle of the lane near the median under the guidance of bridge manager. Significant indicators were set on both ends of the bridge, so that vehicles could shunt rapidly in extreme fire conditions. Department of public security, fire control, transportation, bridges management center should get together to establish accident emergency rescue leading group, and formulated the security system of fire resistance and rescue organization for YingWuzhou Yangtze river bridge. Video monitoring alarm system and fire control facilities were set up in side pier, side tower, middle of the main span and the middle tower, which provided reliable and prevention measures for bridge operation.

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