Nonlinear Finite Element Analysis of Beam String Structure

Zheng Rong Jiang; Mu Xu; Wei Ning Duan; Kai Rong Shi; Jian Cai; Shi Tong Wang

doi:10.4028/www.scientific.net/AMR.163-167.2124

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167Nonlinear Finite Element Analysis of Beam String...

Nonlinear Finite Element Analysis of Beam String Structure

Abstract:

Beam string structure (BSS), which is a new kind of semi-rigid hybrid system, composed of arch, strut and string, has been developed rapidly in long-span steel structures in recent years. Based on the principle of virtual work and Updated Lagrange, the formulas of geometric nonlinear F.E.M. for spatial beam element, cable element and truss element are derived respectively in this paper. Taking the one-way BSS model of the steel roof in Guangzhou International Convention and Exhibition Center as a computational example by using both linear and nonlinear analysis method, the analytical results show that it is appropriate when adopting the straight truss element with two joints and equivalent elastic modulus to simulate the cable element with small sag. Although the linear analysis can meet the requirement of practical engineering due to its weak nonlinearity of BSS, the nonlinear method is also important to improve the precision theoretically. The conclusions obtained may be helpful for the designers in similar projects.

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Periodical:

Advanced Materials Research (Volumes 163-167)

Pages:

2124-2130

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.163-167.2124

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Cite this paper

Online since:

December 2010

Authors:

Zheng Rong Jiang, Mu Xu, Wei Ning Duan, Kai Rong Shi, Jian Cai, Shi Tong Wang

Keywords:

Beam String Structure, Finite Element Model (FEM), Geometrical Nonlinearity, Long-Span Steel Structure

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