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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: Tension and Membrane Structures

Wind-induced response monitoring and study of monolayer cable net

< Table of Contents for Tension and Membrane Structures
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: Tension and Membrane Structures
  • Title: Wind-induced response monitoring and study of monolayer cable net
  • Author(s): Han LI, Bin YANG, Zhaoyang LI, Jia LU
  • Keywords: cable net, structural health monitoring, frequency domain calculation
Abstract
Natural frequency is the reflection of structural property. The change happened in the structure will result in change of the natural frequency. Thus, it’s feasible to detect the damage on the structure by monitoring the vibration. Therefore, a field monitoring project was carried out to monitor the vibration of cable-net. Fifteen acceleration sensors and an anemometer were installed. Based on the vibration data, the first-ten order frequencies of cable-net were identified. Then, the identification results were used to modify the finite element model of cable-net to get the accurate finite element model accord with the current condition. Also, the frequency domain calculation method was adapted to analyze the cable-net under different conditions. The results indicate that the natural frequencies of cable-net are a little lower than the initial condition and the structure is under safe condition. This method can also provide reference for similar projects.

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