Damage Assessment in Bridges Based on Measured Natural Frequencies
作者: Ivana MekjavićDomagoj Damjanović
刊名: International Journal of Structural Stability and Dynamics, 2017, Vol.17 (2), pp.20
来源数据库: World Scientific Publishing
DOI: 10.1142/S0219455417500225
关键词: Damage assessmentbridgenatural frequencymeasurementstiffness
原始语种摘要: This paper presents an identification technique for damage assessment of structures where only the information about the changes of measured natural frequencies can be directly utilized. The structural damage is characterized by a local decrease in the stiffness as represented by a scalar reduction of the material modulus. The objective of this study is to investigate the feasibility of using such a technique for identifying the structural damage in a real steel girder bridge. Numerical examples involving damaged reinforced concrete beams are first used to demonstrate the capability of the proposed computational technique, based on the nonlinear perturbation theory, to predict the exact location and severity of the damage. To experimentally validate the theory, laboratory damage detection...
全文获取路径: World Scientific Publishing 

  • technique 技术
  • demonstrate 说明
  • bridge 电桥
  • damage 损伤
  • computational 计算的
  • capability 能力
  • validate 确认
  • iteration 迭代
  • reinforced 加筋的
  • locate 找出