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


IASS Symposium 2016

SESSION: Shell Structures

Study on Ultimate Stability Bearing Capacity of Single-Layer Reticulated Shell with Member Initial Imperfection

< 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: 8
  • Title: Study on Ultimate Stability Bearing Capacity of Single-Layer Reticulated Shell with Member Initial Imperfection
  • Author(s): Zaigen Mu, Yuqing Yang, Yanfeng Xu, Ming Gan
  • Keywords: single-layer reticulated shell, initial imperfection, geometric nonlinearity, stability bearing capacity, eigenvalue buckling
Abstract
Bearing capacity of single-layer reticulated shell is always controlled by ultimate stability bearing capacity. Single-layer reticulated shell belongs to imperfection sensitive structures that small initial imperfections in members may greatly reduce them critical load. In the process of processing, transportation and installation, initial bending will be inevitably produced. As a result of these imperfections, the ultimate bearing capacity of the compression bars sharp decrease. Therefore member initial imperfections must be considered when analyzing stability of single-layer reticulated shell. In this paper, taking Shenzhen Stadium as project background, the ultimate stability bearing capacity of single-layer reticulated shell with member initial imperfections is analyzed. Eigenvalue buckling and nonlinear buckling analysis by ABAQUS is compared with perfect structure stability bearing capacity. By analyzing ultimate stability bearing capacity of single-layer reticulated shell and differences of stability bearing capacity from perfect structure, the very useful references are provided for design and construction of Shenzhen Stadium.

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