Performance of Bridges with Damaged Elements in Extreme Flood Events

摘要: Recent floods in Southeast Queensland, Australia have caused detrimental impacts on the social, environmental and economic aspects of country. Bridges are considered as critical infrastructure because a time disaster during its recovery stage, bridges provide access for emergency services to flood affected communities. A community has potential be isolated if bridge crossing river or creek is damaged by flooding. Therefore it important understand impact that flooding so they can made less vulnerable damage from these extreme events. In order analyse effects flooding, finite element model case study was created using software package Strand7. The loads determined Australian Standards were applied (Tenthill Creek Bridge near Gatton Lockyer Valley, Queensland). Damage also simulated adding weakened elements main structural bridge. compare different load cases scenarios performance indicators used assess vulnerability. It found girder subjected log loading produced maximum stress