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July 2, 2026Engineering StructuresOpen Access

Experimental investigation on prestressed concrete beams with localized strand damage: Tilt-based deflection mapping and damage indicators

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Authors

ASAmir ShamsaddinlouDDDario De DomenicoARAntonino Recupero

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Overview

Experimental investigation reveals effective methods for detecting tendon damage in prestressed concrete beams, highlighting structural integrity.

Key Points

  • The aim is to investigate how localized strand damage affects the structural response of prestressed concrete beams under different loading conditions.
  • Seven prestressed concrete beams were cast to represent various damage scenarios with selectively severed strands.
  • Tiltmeters measured rotations, which were turned into deflection profiles using a slope-integration process.
  • Defined two sets of damage indicators based on peak and residual deflections to identify damage locations.
  • Peak deflection and location indicators effectively identified damaged regions relating to the number of severed strands.
  • Indicators scaled with the severed strands, correlating with force-displacement responses and observed failure modes.
  • Rapid static testing proved practical for localizing tendon damage in prestressed concrete girders.

Cite This Study

Shamsaddinlou et al. (2026) studied this question.

synapsesocial.com/papers/6a45fef89ed134303130f9dfhttps://doi.org/10.1016/j.engstruct.2026.123270
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Modal identification of prestressed concrete beams with artificial damage on prestressing strands2026
  2. 2An Efficient Approach for Damage Identification of Beams Using Mid-Span Static Deflection Changes2024 · 1 citations
  3. 3Identification of invisible damage in prestressed concrete bridges—A demonstrator case using coda wave interferometry2026
  4. 4Intensity Analysis Method of Acoustic Emission Signals for the Damage Monitoring of Post-Tensioned Concrete Beams2024 · 5 citations
  5. 5Experimental study on the shear behaviour of naturally corroded prestressed concrete beams without transverse reinforcement: from diagnosis to post-repair performance2026