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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Extreme Loads & Disasters

Equivalent Static Wind Load for Large-span Spherical Domes

< Table of Contents for Extreme Loads & Disasters
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Extreme Loads & Disasters
  • Pages: 8
  • Title: Equivalent Static Wind Load for Large-span Spherical Domes
  • Author(s): Ying Sun, Ning Su, Yue Wu, Shizhao Shen
  • Keywords: spherical dome, wind load, wind tunnel tests, wind-induced response
Abstract
Spherical dome is one of the most typical forms of large-span buildings, especially applied in landmarks such as exhibition halls, sports centres. Wind loads and wind-induced responses on such roof structures are necessary in the design process. Based on wind tunnel measurements on a series of rigid dome model with different rise-span ratios, height-span ratios and approaching flows, the wind load models including statistical model and spectral model are summarised. Using the wind load model the wind-induced responses are calculated in frequency domain. By defining the basic wind-induced response as static response under completely correlated RMS wind load, considering the background and resonant effects, the equivalent static wind load model for spherical domes based on mean wind load and RMS wind load is provided. The parameters in the model was discussed and recommended for engineering reference.

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