Long-term monitoring of a reinforced concrete half-joint

Nikolaos Tziavos, Haris Alexakis, Cedric Kechavarzi, Jennifer Schooling

Research output: Chapter in Book/Published conference outputConference publication


Reinforced concrete half-joints were widely employed globally on a large number of motorway bridges over the past fifty years. Half-joints have dapped ends which enable savings by reducing the construction depth and by facilitating precast construction of concrete bridges. However, half-joints are prone to deterioration due to lack of water-tightness on the joint. In-addition, visual inspections of half-joints can be challenging, leading to ineffective and costly maintenance strategies to mitigate the risk of failure or collapse. This paper presents a field-monitoring campaign on a reinforced concrete half-joint which is located within the UK road network. For this purpose a comprehensive structural health monitoring system has been designed and installed, comprising Acoustic Emission (AE), Fibre Bragg Gratings (FBG) and environmental sensors. The monitoring scheme is described in details, along with acquired data during the first months of acquisition. AE data are correlated with the recorded dynamic behaviour and environmental conditions to provide further insight on the long-term performance of ageing concrete infrastructure.
Original languageEnglish
Title of host publicationProceedings of 10th ECCOMAS Thematic Conference on Smart Structures and Materials
EditorsDimitris Saravanos, Ayech Benjeddou, Nikos Chrysochoidis, Theodosis Theodosiou
ISBN (Electronic)9789608810464
Publication statusPublished - Jul 2023
Event10th ECCOMAS Thematic Conference on Smart Structures and Materials - Patras, Greece
Duration: 3 Jul 20235 Jul 2023


Conference10th ECCOMAS Thematic Conference on Smart Structures and Materials
Abbreviated titleSMART 2023


  • Acoustic Emission
  • Reinforced Concrete
  • Half joint
  • Structural Health Monitoring


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