Development of sensor placement optimization tool and application to large-span cable-stayed bridge

Zheng Yi Wu, Kai Zhou, Harry W. Shenton, Michael J. Chajes

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


Structural health monitoring (SHM) is essential for engineers to effectively evaluate structural performance. The accelerometers and strain gauges are commonly used for monitoring and testing structural performance. Placing both types of sensors is the key step for SHM and structural testing. This paper presents the development and application of the sensor placement optimization methods, which have been integrated and implemented in a versatile software tool for maximizing the sensor coverage capacity for structural performance assessment. The sensor placement solutions are optimized using a parallel optimization framework based on the competent genetic algorithm, leading to a number of features that enrich the application flexibility. The developed methods and software tool provide a generic approach for multi-type sensor placement. The integrated tool has been applied to the Indian River Inlet Bridge a large-span cable-stayed bridge to demonstrate and validate the effectiveness of the proposed solution methods for facilitating real world SHM practice.

Original languageEnglish
Pages (from-to)77-90
Number of pages14
JournalJournal of Civil Structural Health Monitoring
Issue number1
Publication statusPublished - 13 Feb 2019
Externally publishedYes


  • Accelerometer placement
  • Genetic algorithm optimization
  • Strain gauge placement
  • Structural health monitoring

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality


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