Advanced Steel Construction

Vol. 15, No. 1, pp. 93-99(2019)


INFLUENCE OF RANDOM GEOMETRICAL IMPERFECTION ON THE STABILITY

OF SINGLE-LAYER RETICULATED DOMES WITH SEMI-RIGID CONNECTION

 

Zhong-Wei Zhao1, Hai-Qing Liu1, Bing Liang2 and Ren-Zhang Yan3, *

1  School of Civil Engineering, Liaoning Technical University, Fuxin 123000, China

2  School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China

3  School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. )

Received: 20 July 2017; Revised: 1 January 2018; Accepted: 29 January 2018

 

DOI:10.18057/IJASC.2019.15.1.12

 

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ABSTRACT

Single-layer reticulated domes are commonly used structural layouts due to their large span capacity and novel appearance. Such structures contain a large number of members, which inevitably lead to imperfection. In this study, a numerical method considering the initial curvature of members, nodal installation error, and joint stiffness was proposed. The randomness of the initial curvature direction, initial curvature magnitude, and joint stiffness could be considered simultaneously. The influence of random geometrical imperfection on the stability of two types of latticed shell structures was investigated. The proposed method could be performed based on general finite element software, and its applicability could be ensured.

 

KEYWORDS

Member initial curvature, Nodal installation error, Latticed shell structure, Buckling capacity, Semi-rigid connection


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