Nonlinear stability of a single-layer hybrid grid shell

Jianguo Cai, Yixiang Xu, Jian Feng, Jin Zhang

Research output: Journal PublicationArticlepeer-review

18 Citations (Scopus)

Abstract

This paper presents a study of a hybrid grid shell, which is made of quadrangular meshes diagonally stiffened by pre-tensioned thin cables. The construction of the hybrid structure by translating a spatial curve against another spatial curve is firstly described. Then the elasto-plastic buckling analyses of the perfect hybrid structure and the corresponding single-layer lattice shell are carried out, and the influence of the asymmetric load on the failure loads is discussed based on a finite element model. Furthermore, the different shapes and sizes of imperfections are considered in this study. Two schemes of imposing imperfections are chosen: the first several eigenvalue buckling modes and the deformed shape of the loaded structure obtained from a geometrical non-linear analysis are chosen as the imperfection shape. Finally, the effects of different structural parameters, such as the rise-to-span ratio, beam section dimension, area and pre-stress of cables and boundary conditions, on the failure loads are investigated.

Original languageEnglish
Pages (from-to)752-760
Number of pages9
JournalJournal of Civil Engineering and Management
Volume18
Issue number5
DOIs
Publication statusPublished - 1 Oct 2012
Externally publishedYes

Keywords

  • elasto-plastic
  • failure load
  • grid shell
  • hybrid structure
  • stability

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Strategy and Management

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