Damage localization in reinforced concrete structures by using damping measurements

C. Modena, D. Sonda, D. Zonta

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

The University of Padua is conducting a theoretical-experimental research project aimed at evaluating the possibility of using dynamic testing to identify manufacturing defects or structural damage in precast reinforced concrete elements. Experimentally, the research involves the dynamic characterization of a set of hollow panels, 1.20m × 5.80m wide, both undamaged and cracked. As part of this project, two new localization techniques based on damping measurements are proposed: one based on the variation of an energetically equivalent modal damping ratio; and one that consists in distinguishing the contribution of a viscous and friction component in damping, and identifying the damage through friction detection and characterization.

Original languageEnglish
Pages (from-to)132-141
Number of pages10
JournalKey Engineering Materials
Volume167-168
DOIs
Publication statusPublished - 1999

Keywords

  • modal testing
  • friction damping
  • damage detection
  • prestressed concrete

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