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


IASS Symposium 2016

SESSION: Shell Structures

A numerical model for computing the lateral pressure on an airformed dome caused by granular materials

< Table of Contents for Shell Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Shell Structures
  • Pages: 7
  • Title: A numerical model for computing the lateral pressure on an airformed dome caused by granular materials
  • Author(s): Yichen Gao, Guozhi Qiu, Jinghai Gong
  • Keywords: airformed dome, concrete shell, lateral pressure, hypoplastic model
Abstract
Airformed domes, which are often used for industrial storage, have been introduced into China in the recent years. The existing design standards only list the lateral loads caused by granular materials for a silo, and does not list the ones for a dome. This paper proposes a numerical model for computing the lateral pressure for both silos and domes, using the Von Wolffersdorff hypoplastic model to describe the behavior of the granular material. The dome wall is considered to be elastic and the foundation is consider to be infinitely rigid. Both the interaction between dome wall and granular material and the one between foundation and granular material have been set up, using surface to surface contact with Coulomb friction law. The numerical model turns out to be helpful for computing the lateral pressure on an airformed dome caused by granular materials.

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