Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25831
Title: Second-order analysis and experiments of semi-rigid and imperfect domes
Authors: Fong, M
Liu, YP
Chan, SL 
Keywords: imperfection
Numerical method
Second-order analysis
Shallow domes
Snap-through buckling
Issue Date: 2012
Publisher: Multi-Science
Source: Advances in structural engineering, 2012, v. 15, no. 9, p. 1537-1546 How to cite?
Journal: Advances in structural engineering 
Abstract: Since the recent introduction of second-order analysis in codes, engineers begin to realize the advantages of the second-order analysis in enhancing the safety and economy of the design output. The method is especially useful for design of complex structures like the shallow dome where failure is commonly due to snap-through buckling with the collapse load difficult to be assessed by the effective length method. In this paper, the second-order analysis is used to study the behavior and to determine the snap-through buckling load of the shallow domes. A comparison on the failure loads of a shallow dome between the laboratory test and second-order analysis is carried out to demonstrate the application of the second-order analysis. Further, the importance for inclusion of global imperfection in the analysis is demonstrated because the snap-through buckling load can be greatly reduced if the practically unavoidable and unfavorable global imperfection is included.
URI: http://hdl.handle.net/10397/25831
ISSN: 1369-4332
EISSN: 2048-4011
DOI: 10.1260/1369-4332.15.9.1537
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